A building mortar spraying device for construction engineering
By designing an internal circulation device and a heating device, the problem of mortar pipe blockage in cold environments was solved, enabling efficient mortar spraying under low-temperature conditions and ensuring smooth construction.
Patent Information
- Application Number
- CN202310428289.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-04-20
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2043-04-20
AI Technical Summary
Existing mortar spraying equipment is prone to mortar adhesion and blockage in cold environments due to pipe cooling, which affects construction efficiency.
It employs an internal circulation device and a heating device, and uses components such as an agitator, a flow restrictor, and a spiral auger to maintain the high viscosity of the mortar and prevent it from solidifying. Combined with a roller assembly, it allows the equipment to be sprayed close to or far from the wall.
It effectively prevents mortar from solidifying in the pipes in cold environments, maintains spraying efficiency, avoids blockages, and ensures the smooth progress of wall plastering work.
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Figure CN116446620B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of construction equipment technology, specifically to a building mortar spraying device for building engineering. Background Technology
[0002] Building mortar is a type of mortar used to bind masonry materials (bricks, stones, blocks) together. It consists of inorganic cementitious materials, fine aggregates, and water, and sometimes admixtures. Its compressive strength is often used as the primary technical performance indicator. After a building is constructed, both the interior and exterior walls need to be plastered with mortar to ensure a smooth surface. Previously, wall plastering was mainly done manually, requiring a large workforce and being relatively slow. To address this issue, mortar spraying equipment is commonly used.
[0003] Currently, most existing mortar spraying equipment adopts an integrated mixing and spraying method. The mortar is first mixed by a mixing mechanism, and then sprayed onto the wall by a spraying mechanism. However, when constructing the wall in a cold environment, the mortar will adhere to the pipe and eventually cause blockage as the pipe cools down during the process of transporting the mortar from the mixing mechanism to the spraying mechanism. Summary of the Invention
[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a building mortar spraying equipment for construction engineering, comprising a mixing device, a vehicle body device, a feeding box, an internal circulation device, a material holding device, a front baffle and a conveying pipe.
[0005] The internal circulation device is installed inside the material holding equipment. The front baffle is connected to the vehicle body device. The front baffle not only serves as a collision protection device, but also maintains the positional gap between the vehicle body device and the wall. The feeding box is installed on the vehicle body device. The stirring device is connected to the feeding box through a conveying pipe. The stirring device is also connected to the vehicle body device.
[0006] The vehicle body assembly includes a chassis, with side frames fixedly connected to both ends of the chassis. The end face of the side frame is connected to the front baffle. A roller assembly is fixedly connected to the bottom of the side frame. The feeding box is mounted on the chassis. The chassis is connected to the roller assembly. A connecting rod is fixedly connected to the side of the side frame. The end of the connecting rod away from the side frame is connected to a mixing device.
[0007] The mixing device includes an agitator, which agitates the mortar inside to maintain its viscosity and prevent solidification. The agitator is connected to the end of the conveying pipe away from the feeding box. A collar is fitted on the surface of the agitator, and the collar is connected to the end of the connecting rod away from the side frame.
[0008] Preferably, the bottom of the agitator is fitted with a flow limiting device, the surface of the flow limiting device is fitted with a base plate, the top of the base plate is fitted with a side rod, the bottom of the flow limiting device is fitted with a folding tube, and the end of the folding tube away from the flow limiting device is connected to the material holding device.
[0009] Preferably, the material holding device includes a material holding box, a support is fixedly connected to the top of the material holding box, a handrail is fixedly connected to the surface of the support, and a through pipe is provided on the side of the material holding box.
[0010] Preferably, an end cap is fixedly connected to the end face of the tube, the end of the tube away from the end cap is connected to the internal circulation device, and a spray gun is fixedly connected to the end of the internal circulation device away from the tube.
[0011] Preferably, the internal circulation device includes an agitating baffle plate, a one-way rotating plate is rotatably connected to the surface of the agitating baffle plate, and a spiral auger is provided at the center of the agitating baffle plate, the surface of the spiral auger being connected to the inner wall of the agitating baffle plate.
[0012] Preferably, one end of the spiral auger is fitted inside the through pipe, and the end of the spiral auger away from the through pipe is fitted with a return pipe, and the end of the return pipe away from the spiral auger is connected to the spray gun.
[0013] Preferably, the flow limiting device includes a housing, which is fitted inside the agitator and on the surface of the base plate. The bottom of the housing is connected to the folded tube, and a ring shaft is provided inside the housing.
[0014] Preferably, an upper rotating plate is rotatably connected to the surface of the ring shaft, and a heating block is provided inside the upper rotating plate. The heating block serves to maintain the viscosity of the mortar. A flow limiting plate is fixedly connected to the surface of the upper rotating plate. The upper rotating plate and the flow limiting plate serve to maintain a high viscosity when the mortar is sprayed.
[0015] Preferably, the interior of the housing is provided with a fixing groove ring, the surface of the fixing groove ring is slidably connected to a slider, the bottom of the slider is fixedly connected to an eccentric rod, and the end of the eccentric rod away from the slider is fixedly connected to a mixer, wherein the mixer serves to prevent the highly viscous mortar from adhering to the inner wall of the housing during the flow process.
[0016] This invention provides a mortar spraying device for construction engineering. It has the following beneficial effects:
[0017] 1. The mortar spraying equipment used in this construction project accumulates more and more mixed mortar in the space between the upper rotating plate and the flow limiting plate. The upper rotating plate and the flow limiting plate cannot withstand the weight of the mortar, so a large amount of mortar will continue to flow downward along the shell, so as to maintain a high viscosity when spraying mortar.
[0018] 2. The mortar spraying equipment used in this construction project uses a mixer to rotate and agitate the mortar that has just flowed down from the flow-limiting device. The mixer is in close contact with the inner wall of the shell to prevent the highly viscous mortar from adhering to the inner wall of the shell during the flow process, and to prevent the mortar from solidifying on the inner wall of the shell due to the decrease in external temperature.
[0019] 3. The mortar spraying equipment used in this construction project, by pushing the handrail frame, causes the roller assembly to roll forward, so as to facilitate spraying work close to or away from the wall. In addition, the front baffle not only serves as a collision protection function, but also serves to maintain the positional gap between the vehicle body and the wall.
[0020] IV. The mortar spraying equipment used in this construction project allows mortar to flow into the return pipe through holes opened on the surface of the spiral auger. The other end of the return pipe is connected to the spray gun, so the mortar will be sprayed from the spray gun to achieve the effect of spraying mortar onto the wall surface.
[0021] 5. When the mortar spraying equipment used in this construction project rotates to the top by agitating the baffle plate, part of the mortar will flow into the return pipe, while the other part will be divided into two streams. One stream flows onto the spiral auger and is then flowed back into the return pipe by the rotation of the spiral auger. This achieves the effect of heating the mortar that is constantly flowing in the pipe and inside the spiral auger with the newly added hot mortar.
[0022] VI. The mortar spraying equipment used in this construction project divides the mortar into two streams. One stream flows onto the auger and is re-entered into the return pipe by the rotation of the auger, while the other stream enters the corresponding agitator baffle, operating in a continuous cycle. The material container is equipped with a heating device to prevent the mortar from solidifying in the container, thus preventing the original mortar from solidifying and clogging the pipe. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of the building mortar spraying equipment for building engineering of the present invention;
[0024] Figure 2 This is a schematic diagram of the overall side view structure of the present invention;
[0025] Figure 3 This is a schematic diagram of the vehicle body device structure of the present invention;
[0026] Figure 4 This is a schematic diagram of the mixing device of the present invention;
[0027] Figure 5 This is a schematic diagram of the material holding device of the present invention;
[0028] Figure 6 This is a shallow cross-sectional schematic diagram of the internal circulation device of the present invention;
[0029] Figure 7 This is a schematic diagram of the deep cross-section of the internal circulation device of the present invention;
[0030] Figure 8 This is a cross-sectional view of the current limiting device of the present invention;
[0031] Figure 9 This is a schematic diagram of the current limiting device of the present invention.
[0032] In the diagram: 1. Mixing device; 2. Body assembly; 3. Feeding box; 4. Internal circulation device; 5. Material holding device; 6. Front baffle; 7. Conveying pipe; 21. Base frame; 22. Side frame; 23. Roller assembly; 24. Connecting rod; 11. Agitator; 12. Collar; 13. Flow limiting device; 14. Side rod; 15. Bending pipe; 16. Base plate; 51. Handrail; 52. Support; 53. Material holding box; 54. Through pipe; 55. End cap; 56. Spray gun; 41. Spiral auger; 42. Agitating bending plate; 43. One-way rotating plate; 44. Return pipe; 131. Shell; 132. Ring shaft; 133. Upper rotating plate; 134. Heating block; 135. Flow limiting plate; 136. Fixed groove ring; 137. Slider; 138. Eccentric rod; 139. Mixer. Detailed Implementation
[0033] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.
[0034] like Figures 1-9As shown, the present invention provides a technical solution: a building mortar spraying device for construction engineering, including a mixing device 1, a vehicle body device 2, a feeding box 3, an internal circulation device 4, a material holding device 5, a front baffle 6, and a conveying pipe 7. The internal circulation device 4 is disposed inside the material holding device 5. The front baffle 6 is connected to the vehicle body device 2. The feeding box 3 is disposed on the vehicle body device 2. The mixing device 1 is connected to the feeding box 3 through the conveying pipe 7. The mixing device 1 is connected to the vehicle body device 2.
[0035] The vehicle body device 2 includes a base frame 21, with side frames 22 fixedly connected to both ends of the base frame 21. The end face of the side frame 22 is connected to the front baffle 6. A roller assembly 23 is fixedly connected to the bottom of the side frame 22. The feeding box 3 is mounted on the base frame 21. The base frame 21 is connected to the roller assembly 23. A connecting rod 24 is fixedly connected to the side of the side frame 22. The end of the connecting rod 24 away from the side frame 22 is connected to the mixing device 1.
[0036] The mixing device 1 includes an agitator 11, which is connected to the end of the conveying pipe 7 away from the feeding box 3. A collar 12 is fitted on the surface of the agitator 11, and the collar 12 is connected to the end of the connecting rod 24 away from the side frame 22. A flow limiting device 13 is fitted on the bottom of the agitator 11, and a base plate 16 is fitted on the surface of the flow limiting device 13. A side rod 14 is fitted on the top of the base plate 16. A folding pipe 15 is installed at the bottom of the flow limiting device 13, and the end of the folding pipe 15 away from the flow limiting device 13 is connected to the material holding device 5.
[0037] The material holding device 5 includes a material holding box 53. A support 52 is fixedly connected to the top of the material holding box 53, and a handrail 51 is fixedly connected to the surface of the support 52. A through pipe 54 is provided on the side of the material holding box 53, and an end cap 55 is fixedly connected to the end face of the through pipe 54. The end of the through pipe 54 away from the end cap 55 is connected to an internal circulation device 4, and a spray gun 56 is fixedly connected to the end of the internal circulation device 4 away from the through pipe 54. By pushing the handrail 51, the roller assembly 23 rolls forward, so as to facilitate spraying close to or away from the wall. In addition, the front baffle 6 not only serves as a collision avoidance function, but also maintains the positional gap between the vehicle body device 2 and the wall.
[0038] The internal circulation device 4 includes an agitating baffle 42, with a one-way rotating plate 43 rotatably connected to the surface of the agitating baffle 42. A spiral auger 41 is located at the center of the agitating baffle 42, with its surface connected to the inner wall of the agitating baffle 42. One end of the spiral auger 41 is fitted inside a through-pipe 54, and a return pipe 44 is fitted at the end of the spiral auger 41 away from the through-pipe 54. The end of the return pipe 44 away from the spiral auger 41 is connected to a spray gun 56. Mortar flows into the return pipe 44 through holes in the surface of the spiral auger 41, and the other end of the return pipe 44 is connected to the spray gun 56, thus the mortar is sprayed from the spray gun 56.
[0039] When the agitator 42 rotates to the top, part of the mortar will flow into the return pipe 44, while the other part will be divided into two streams. One stream flows onto the spiral auger 41 and is then flowed back into the return pipe 44 by the rotation of the spiral auger 41.
[0040] The mortar is divided into two streams. One stream flows onto the auger 41 and is re-entered into the return pipe 44 by the rotation of the auger 41. The other stream enters the corresponding agitator 42 and operates in a cycle. The mortar container 53 is equipped with a heating device to prevent the mortar from solidifying in the container.
[0041] The flow limiting device 13 includes a housing 131, which is fitted inside the agitator 11 and on the surface of the base plate 16. The bottom of the housing 131 is connected to the folded tube 15. A ring shaft 132 is provided inside the housing 131. An upper rotating plate 133 is rotatably connected to the surface of the ring shaft 132. A heating block 134 is provided inside the upper rotating plate 133. A flow limiting plate 135 is fixedly connected to the surface of the upper rotating plate 133. A fixing groove ring 136 is provided inside the housing 131. A slider 137 is slidably connected to the surface of the fixing groove ring 136. An eccentric rod 138 is fixedly connected to the bottom of the slider 137. A mixer 139 is fixedly connected to the end of the eccentric rod 138 away from the slider 137. As more and more mixed mortar accumulates in the space between the upper rotating plate 133 and the flow limiting plate 135, the upper rotating plate 133 and the flow limiting plate 135 cannot withstand the weight of the mortar, so a large amount of mortar will continue to flow downward along the shell 131, so as to maintain a high viscosity when spraying mortar.
[0042] The mortar flowing from the flow-limiting device 13 is rotated and agitated by the mixer 139, which is in close contact with the inner wall of the shell 131 to prevent the highly viscous mortar from adhering to the inner wall of the shell 131 during the flow process.
[0043] In use, the mortar is fed into the agitator 11 through the conveying pipe 7 via the operation of the feeding box 3. The agitator 11 then stirs the mortar inside to maintain its viscosity and prevent solidification. The mortar then enters the flow limiting device 13. Initially, some of the mixed mortar remains on the upper rotating plate 133 or in the space between the upper rotating plate 133 and the flow limiting plate 135. At the same time, the heating block 134 heats the mixed mortar to maintain its viscosity. As more and more mixed mortar remains here, the upper rotating plate 133 and the flow limiting plate 135 can no longer withstand the weight of the mortar, and a large amount of mortar continues to flow downwards along the shell 131 to maintain a high viscosity when spraying the mortar.
[0044] The slider 137 rotates within the annular groove on the surface of the fixed groove ring 136, causing the eccentric rod 138 fixed at its bottom to rotate accordingly. The bottom of the eccentric rod 138 is fixedly connected to the mixer 139, which rotates and agitates the mortar flowing from the flow limiting device 13. The mixer 139 is in contact with the inner wall of the housing 131 to prevent the highly viscous mortar from adhering to the inner wall of the housing 131 during the flow process.
[0045] By pushing the handrail 51, the roller assembly 23 rolls forward, making it easier to spray close to or away from the wall. In addition, the front baffle 6 not only serves as a collision preventer, but also maintains the positional gap between the vehicle body device 2 and the wall, preventing the vehicle body device 2 from leaning too far forward and causing mortar back splashing.
[0046] The mortar flows out from the flow-limiting device 13 and flows into the through pipe 54 through the hole on the surface of the end cap 55. The other end of the through pipe 54 is fitted with a spiral auger 41, which has a hole at the shaft end and is connected to the return pipe 44 at the other end of the spiral auger 41. Therefore, the mortar flows into the return pipe 44 through the hole on the surface of the spiral auger 41. The other end of the return pipe 44 is connected to the spray gun 56, so the mortar is sprayed from the spray gun 56 to achieve the effect of spraying mortar onto the wall surface.
[0047] By pulling the auger 41 out of the pipe 54, mortar flows into the container 53. When the container 53 is filled to a certain level, the auger 41 is reconnected to the pipe 54. Then, the auger 41 is rotated, causing the agitating baffle 42 fixed to its surface to rotate as well. When the agitating baffle 42 reaches its bottom, the one-way rotating plate 43 on its surface impacts the mortar in the container 53, causing... The mortar flows from the one-way rotating plate 43 into the interior of the agitating baffle plate 42. When the agitating baffle plate 42 rotates to the top, part of the mortar flows into the return pipe 44, while the other part splits into two streams. One stream flows onto the auger 41 and is returned to the return pipe 44 by the rotation of the auger 41, while the other stream enters the opposing agitating baffle plate 42, circulating repeatedly. A heating device is installed in the mortar container 53 to prevent the mortar from solidifying inside. This is to ensure that the mortar continuously flowing inside the pipe 54 and the auger 41 can be heated by newly added hot mortar, thus preventing the original mortar from solidifying and clogging the pipe.
[0048] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. A building mortar spraying device for construction engineering, comprising a mixing device (1), a vehicle body device (2), a feeding box (3), an internal circulation device (4), a material holding device (5), a front baffle (6), and a conveying pipe (7), characterized in that: The internal circulation device (4) is installed inside the material holding device (5), the front baffle (6) is connected to the vehicle body device (2), the feeding box (3) is installed on the vehicle body device (2), the stirring device (1) is connected to the feeding box (3) through the conveying pipe (7), and the stirring device (1) is connected to the vehicle body device (2). The vehicle body device (2) includes a base frame (21), both ends of which are fixedly connected to a side frame (22). The end face of the side frame (22) is connected to the front baffle (6). A roller assembly (23) is fixedly connected to the bottom of the side frame (22). The feeding box (3) is set on the base frame (21). The base frame (21) is connected to the roller assembly (23). A connecting rod (24) is fixedly connected to the side of the side frame (22). The end of the connecting rod (24) away from the side frame (22) is connected to the stirring device (1). The mixing device (1) includes an agitator (11), which is connected to the end of the conveying pipe (7) away from the feeding box (3). A collar (12) is sleeved on the surface of the agitator (11), and the collar (12) is connected to the end of the connecting rod (24) away from the side frame (22). The internal circulation device (4) includes a stirring baffle (42), a one-way rotating plate (43) is rotatably connected to the surface of the stirring baffle (42), and a spiral auger (41) is provided at the center of the stirring baffle (42), the surface of the spiral auger (41) is connected to the inner wall of the stirring baffle (42); The material holding device (5) includes a material holding box (53), a support (52) is fixedly connected to the top of the material holding box (53), a handrail (51) is fixedly connected to the surface of the support (52), and a through pipe (54) is provided on the side of the material holding box (53). An end cap (55) is fixedly connected to the end face of the tube (54). The end of the tube (54) away from the end cap (55) is connected to the internal circulation device (4). A spray gun (56) is fixedly connected to the end of the internal circulation device (4) away from the tube (54). One end of the spiral auger (41) is fitted inside the through pipe (54), and the end of the spiral auger (41) away from the through pipe (54) is fitted with a return pipe (44). The end of the return pipe (44) away from the spiral auger (41) is connected to the spray gun (56).
2. The building mortar spraying equipment for construction projects according to claim 1, characterized in that: The bottom of the agitator (11) is fitted with a flow limiting device (13), the surface of the flow limiting device (13) is fitted with a base plate (16), the top of the base plate (16) is fitted with a side rod (14), the bottom of the flow limiting device (13) is fitted with a folded tube (15), and the end of the folded tube (15) away from the flow limiting device (13) is connected to the material holding device (5).
3. The building mortar spraying equipment for construction projects according to claim 2, characterized in that: The flow limiting device (13) includes a housing (131), which is fitted inside the agitator (11) and on the surface of the base plate (16). The bottom of the housing (131) is connected to the folded tube (15), and a ring shaft (132) is provided inside the housing (131).
4. The building mortar spraying equipment for construction projects according to claim 3, characterized in that: The surface of the ring shaft (132) is rotatably connected to an upper rotating plate (133), and a heating block (134) is provided inside the upper rotating plate (133). A flow limiting plate (135) is fixedly connected to the surface of the upper rotating plate (133).
5. The building mortar spraying equipment for construction projects according to claim 3, characterized in that: The housing (131) has a fixed groove ring (136) inside, and a slider (137) is slidably connected to the surface of the fixed groove ring (136). An eccentric rod (138) is fixedly connected to the bottom of the slider (137), and a mixer (139) is fixedly connected to the end of the eccentric rod (138) away from the slider (137).
Citation Information
Patent Citations
Stirring device for precast concrete member
CN210939894U
Mixed spraying equipment for manufacturing light building materials
CN213174668U