Mortar stirring device

Abstract

The utility model provides a mortar stirring device. The mortar stirring device comprises a stirring tank, a cylinder piece fixedly arranged in the stirring tank through a supporting cross beam, a first driving source arranged in the cylinder piece and capable of outputting rotation driving force, a stirring shaft connected to the power output end of the first driving source, and a pressing plate connected to the lower end of the stirring shaft. The second driving source is arranged in the barrel part and used for driving the first driving source, the stirring shaft and the pressing plate to ascend and descend, and the bottom of the pressing plate is in a downwards-bent arc shape. According to the utility model, a multi-layer mixing path is formed, and upturned materials are fully mixed through the stirring shaft, so that the mixing efficiency is greatly improved, the problem of non-uniform mixing of a single stirring shaft of an existing stirring device is solved, and the overall uniformity of mortar is ensured.

Description

Technical Field

[0001] This utility model relates to the field of masonry construction technology in roadbed engineering, and in particular to a mortar mixing device. Background Technology

[0002] Roadbed engineering includes the main roadbed structure, borrow pits and spoil heaps, slope protection and embankment, comprehensive roadbed drainage, roadbed protection and reinforcement, embankment and cut roadbed, roadbed in special engineering geological areas, construction in winter and rainy seasons, as well as the construction organization of earthwork projects, roadbed repair, quality inspection, and project acceptance.

[0003] In the construction of masonry subgrade, uniform mixing of mortar is a crucial step in ensuring project quality. Existing mortar mixing devices (such as the mortar mixing device disclosed in patent application publication number CN102728261A) use unidirectional mixing blades for mixing. While this design can meet basic mixing requirements, it often leads to uneven mixing when handling large-scale or complex mortars. In addition, the lack of an effective material turning structure causes some material to easily remain at the bottom or side walls of the mixing tank, forming dead zones and affecting the final mortar quality. Utility Model Content

[0004] The purpose of this invention is to provide a mortar mixing device to solve the problem of uneven mixing.

[0005] The technical solution of this utility model is: a mortar mixing device, including a mixing tank, a cylinder fixed in the mixing tank by a supporting beam, a first drive source disposed in the cylinder that can output rotational driving force, a mixing shaft connected to the power output end of the first drive source, a pressure plate connected to the lower end of the mixing shaft, and a second drive source disposed in the cylinder for driving the first drive source, the mixing shaft and the pressure plate to rise and fall, wherein the bottom of the pressure plate is a downwardly curved arc.

[0006] In the above scheme, a pressure plate is set at the lower end of the mixing shaft. The lower end of the pressure plate is curved. When the second drive source drives the pressure plate to press down, the slurry is squeezed and turned up from the gap between the pressure plate and the mixing tank, forming a multi-layer mixing path. The material turned up is then fully mixed by the mixing shaft, which greatly improves the mixing efficiency, solves the problem of uneven mixing caused by the single mixing shaft of the existing mixing device, and ensures the overall uniformity of the mortar.

[0007] Preferably, the pressure plate includes a downwardly curved bottom wall and an upwardly curved top wall, the top wall and the bottom wall enclosing each other to make the interior of the pressure plate hollow, and the stirring shaft is connected to the top wall.

[0008] Preferably, the bottom wall is a deformable elastic wall, an intermediate wall is provided between the bottom wall and the top wall, and a buffer damper is provided between the intermediate wall and the bottom wall.

[0009] Preferably, at least one scraper is connected to the lower end of the bottom wall.

[0010] Preferably, the scraper includes a horizontally arranged first plate and a second plate vertically connected to one end of the first plate, with the end of the first plate away from the second plate connected to the bottom wall.

[0011] Preferably, there are multiple scrapers, and the multiple scrapers are evenly distributed along the circumference of the pressure plate.

[0012] Preferably, stirring blades are installed on the stirring shaft.

[0013] Preferably, a cylinder cover is installed on the upper end of the cylinder, one end of the second drive source is mounted on the cylinder cover via a mounting base, the other end of the second drive source is connected to a mounting plate, the mounting plate is slidably connected to the inner wall of the cylinder, and the first drive source is mounted on the mounting plate.

[0014] Preferably, the top of the mixing tank is covered with a top cover, the top cover is provided with a feed pipe, and the mixing tank is provided with a discharge pipe.

[0015] Preferably, the bottom of the mixing tank is provided with at least three support legs.

[0016] Compared with related technologies, the beneficial effects of this utility model are as follows:

[0017] 1. The mortar mixing device has a pressure plate at the lower end of the mixing shaft. The lower end of the pressure plate is curved. When the second drive source drives the pressure plate to press down, the mortar is squeezed and turned up from the gap between the pressure plate and the mixing tank, forming a multi-layer mixing path. The material turned up is then fully mixed by the mixing shaft, which greatly improves the mixing efficiency and solves the problem of uneven mixing caused by the single mixing shaft of the existing mixing device, thus ensuring the overall uniformity of the mortar.

[0018] 2. The mortar mixing device is equipped with a scraper at the lower end of the pressure plate. The scraper rotates together with the mixing shaft and the pressure plate, which can scrape off the clumps of material attached to the bottom and side walls of the mixing tank. The scraped material is then reintroduced into the mixing process, which avoids the material from adhering to the tank wall for a long time and forming clumps. This ensures the fluidity and uniformity of the material and further improves the mixing quality. Attached Figure Description

[0019] Figure 1 A schematic diagram of the mortar mixing device provided by this utility model;

[0020] Figure 2 for Figure 1A schematic diagram of the disassembled top cover structure;

[0021] Figure 3 for Figure 1 A schematic diagram of the structure without the top cover and mixing tank;

[0022] Figure 4 for Figure 3 A schematic diagram of the structure without the cylindrical component;

[0023] Figure 5 This is a schematic diagram of the cross-section of the pressure plate.

[0024] In the attached diagram: 1. Mixing tank; 2. Top cover; 3. Feed pipe; 4. Discharge pipe; 5. Support beam; 6. Cylinder; 7. Cylinder cover; 8. Mixing shaft; 9. Mixing blades; 10. Pressure plate; 11. Top wall; 12. Bottom wall; 13. Scraper; 131. First plate; 132. Second plate; 14. Mounting plate; 15. First drive source; 16. Second drive source; 17. Mounting base; 18. Intermediate wall; 19. Buffer damper; 20. Support leg. Detailed Implementation

[0025] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0026] like Figure 1 As shown, the mortar mixing device provided in this embodiment includes a mixing tank 1 and a detachable top cover 2 on the mixing tank 1. A feed pipe 3 is provided on the top cover 2, and a discharge pipe 4 is provided on the mixing tank 1, with the discharge pipe 4 located near the lower end of the mixing tank 1. Three support legs 20 are provided at the bottom of the mixing tank 1.

[0027] like Figure 2 , Figure 3 , Figure 4 As shown, the mortar mixing device also includes a supporting beam 5, a cylinder 6, a cylinder cover 7, a mixing shaft 8, mixing blades 9, a pressure plate 10, a scraper 13, a mounting plate 14, a first drive source 15, a second drive source 16, and a mounting base 17.

[0028] The mixing tank 1 is equipped with a supporting beam 5, which is arranged in a straight line. One end of the supporting beam 5 is connected to the outer wall of the cylinder 6, and the other end is connected to the inner wall of the mixing tank 1. The supporting beam 5 enhances the stability of the cylinder 6 through a mechanical structure, preventing it from shifting or deforming during the mixing process. This ensures that the mixing effect is not affected by vibration, improves the overall safety and durability of the equipment, and extends its service life.

[0029] The second drive source 16 can output lifting driving force, and its selection can be a lifting motor or lifting cylinder, etc. The fixed end of the second drive source 16 is mounted on the mounting base 17, and the telescopic rod (i.e., the power output end) of the second drive source 16 is connected to the mounting plate 14. The lower surface of the mounting plate 14 is equipped with a first drive source 15, which is a motor. The stirring shaft 8 is mounted on the motor shaft of the first drive source 15 through a coupling.

[0030] The stirring shaft 8, the first drive source 15, and the second drive source 16 are inserted through the cylinder 6 from top to bottom, so that the stirring shaft 8 extends from the lower end of the cylinder 6. The mounting base 17 is placed on the upper surface of the cylinder 6, and the cylinder cover 7 is placed on the upper surface of the mounting base 17. Finally, the cylinder cover 7, the mounting base 17, and the cylinder 6 are fixed by bolts.

[0031] The first drive source 15 is located inside the cylindrical component 6, and the mounting plate 14 is slidably connected to the inner wall of the cylindrical component 6 to ensure effective torque output of the motor. The sliding connection can be achieved by providing a protrusion on the inner wall of the cylindrical component 6 and a groove on the mounting plate 14 that matches the protrusion. When the first drive source 15 extends or retracts, the mounting plate 14 rises and falls under the guidance of the groove and the protrusion.

[0032] A pressure plate 10 is installed at the lower end of the stirring shaft 8. For example... Figure 5 As shown, the pressure plate 10 includes a downwardly curved bottom wall 12 and an upwardly curved top wall 11. The top wall 11 and the bottom wall 12 enclose the pressure plate 10 vertically, making the interior of the pressure plate 10 hollow. The stirring shaft 8 is connected to the top wall 11. When the second drive source 16 extends, it can drive the pressure plate 10 to press down, causing the mortar mixture to be squeezed and turned upward from the gap between the pressure plate 10 and the mixing tank 1.

[0033] To ensure the effective pressing, the bottom wall 12 can be made of a deformable elastic material. When selecting the elastic material, it is necessary to consider its strength to achieve pressing while also providing some cushioning deformation; for example, thin sheet metal or PVC material can be used. An intermediate wall 18 is provided between the bottom wall 12 and the top wall 11, and a buffer damper 19 is provided between the intermediate wall 18 and the bottom wall 12. The buffer damper 19 is an externally purchased component and can be a hydraulic cylinder, capable of absorbing and buffering the impact force during the pressing process of the pressure plate 10, ensuring smooth operation. The intermediate wall 18 enhances the structural strength of the pressure plate 10, providing reliability and stability.

[0034] At least one scraper 13 is connected to the lower end of the bottom wall 12. The scraper 13 includes a horizontally arranged first plate 131 and a second plate 132 vertically connected to one end of the first plate 131. The second plate 132 extends upward from the first plate 131. The end of the first plate 131 away from the second plate 132 is connected to the bottom wall 12. When there are multiple scrapers 13, they are evenly distributed along the circumference of the pressure plate 10.

[0035] The stirring shaft 8 is equipped with stirring blades 9, which are arranged in a straight line.

[0036] In the second embodiment, the first drive source 15, the second drive source 16, and the stirring shaft 8 can also be disassembled from the mixing tank 1. For example, the stirring shaft 8 and the pressure plate 10 can be designed to be detachably connected, and the stirring blades 9 can be detachably installed on the stirring shaft 8. During disassembly, first open the top cover 2 and remove the cylinder cover 7; then, hold the mounting base 17 and pull the second drive source 16 upwards. When the pressure plate 10 is raised to a suitable position, use a tool to remove the pressure plate 10 from the stirring shaft 8, and then remove the stirring blades 9 from the stirring shaft 8. Continue pulling upwards until the second drive source 16, the first drive source 15, and the stirring shaft 8 are completely removed. During installation, follow the reverse steps described above. Alternatively, other more convenient disassembly structures can be designed during use, such as a bracket fixed to the inner wall of the mixing tank 1 or the outer wall of the cylinder 6, with the support beam 5 detachably installed on the bracket. During disassembly, the support beam 5 or the cylinder 6 and other mounting parts on it can be disassembled together.

[0037] The second drive source 16 can extend and retract to drive the stirring blades 9 to rise and fall, adapting to stirring needs at different depths and improving the applicability of the equipment. Depending on the usage requirements, one or two proximity switches can be installed inside the stirring tank 1, one at the top to sense the extreme position of the pressure plate 10 rising, and one at the bottom to sense the extreme position of the pressure plate 10 falling.

[0038] When using the mortar mixing device provided by this utility model, the required mortar mixture is added to the mixing tank 1 through the feed pipe 3. The first drive source 15 is started to drive the mixing shaft 8, the mixing blades 9 and the scraper 13 on the pressure plate 10 to rotate; at the same time, the second drive source 16 is started to extend and drive the mixing shaft 8, the mixing blades 9 and the scraper 13 on the pressure plate 10 to descend.

[0039] As the pressure plate 10 descends, it applies pressure to the material at the bottom of the mixing tank 1, causing the material to be squeezed upwards and then come into full contact with the mixing blades 9 for further mixing.

[0040] As the pressure plate 10 presses down, the scraper 13 scrapes off the clumps of material on the bottom wall and lower side wall of the mixing tank 1, preventing material adhesion. The scraped material is then remixed. During the mixing process, the second drive source 16 can be controlled to repeatedly rise and fall.

[0041] Once the mortar is mixed, stop the first drive source 15 and the second drive source 16; then start the second drive source 16 to lift the pressure plate 10. Open the valve on the discharge pipe 4 to discharge the mixed mortar, completing the mixing process.

[0042] Alternatively, an observation window can be provided on the top cover 2 or the mixing tank 1 to check the internal mixing process.

[0043] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A mortar mixing device comprising a mixing tank (1), characterized in that, The stirring tank (1) further comprises a cylinder (6) fixed in the stirring tank (1) by the support beam (5), a first driving source (15) arranged in the cylinder (6) and capable of outputting rotary driving force, a stirring shaft (8) connected to a power output end of the first driving source (15), a pressing plate (10) connected to a lower end of the stirring shaft (8), and a second driving source (16) arranged in the cylinder (6) and used for driving the first driving source (15), the stirring shaft (8) and the pressing plate (10) to lift and lower, wherein a bottom of the pressing plate (10) is an arc-shaped plate bent downward.

2. A mortar mixing device according to claim 1, characterised in that The pressing plate (10) comprises a bottom wall (12) bent downward and a top wall (11) bent upward, the top wall (11) and the bottom wall (12) are vertically closed to form a hollow inside the pressing plate (10), and the stirring shaft (8) is connected to the top wall (11).

3. A mortar mixing device according to claim 2, wherein The bottom wall (12) is an elastic wall capable of deforming, an intermediate wall (18) is arranged between the bottom wall (12) and the top wall (11), and a buffer damper (19) is arranged between the intermediate wall (18) and the bottom wall (12).

4. The mortar mixing device of claim 2, wherein, A lower end of the bottom wall (12) is connected with at least one scraper (13).

5. A mortar mixing apparatus as claimed in claim 4, wherein, The scraper (13) comprises a first plate (131) arranged horizontally and a second plate (132) vertically connected to one end of the first plate (131), and one end of the first plate (131) away from the second plate (132) is connected with the bottom wall (12).

6. The sand slurry mixing apparatus of claim 4, wherein, The scraper (13) is a plurality of scrapers, and the plurality of scrapers (13) are uniformly distributed along a circumferential direction of the pressing plate (10).

7. A mortar mixing device according to any one of claims 1-6, characterized in that The stirring shaft (8) is provided with stirring blades (9).

8. A mortar mixing device according to any one of claims 1 to 6, wherein An upper end of the cylinder (6) is provided with a cylinder cover (7), one end of the second driving source (16) is arranged on the cylinder cover (7) through a mounting seat (17), the other end of the second driving source (16) is connected with a mounting disc (14), the mounting disc (14) is slidably connected with an inner wall of the cylinder (6), and the first driving source (15) is arranged on the mounting disc (14).

9. A mortar mixing device according to any one of claims 1 to 6, wherein A top cover (2) is arranged on a top end of the stirring tank (1), the top cover (2) is provided with a feeding pipe (3), and the stirring tank (1) is provided with a discharging pipe (4).

10. A mortar mixing apparatus as claimed in any one of claims 1 to 6, wherein, At least three supporting legs (20) are arranged on a bottom of the stirring tank (1).

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