Automatic grouting equipment for concrete hollow bricks
By combining a main and auxiliary mixing shaft driven by a dual-head motor and designing a dust extraction device, the problem of uneven slurry mixing was solved, the strength and stability of the concrete hollow bricks were improved, and the working environment and equipment lifespan were enhanced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIFANG WEIDA CONSTRUCTION ENGINEERING TESTING CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-21
AI Technical Summary
Existing automatic grouting equipment for hollow concrete bricks suffers from uneven grout mixing, resulting in insufficient brick strength and stability.
The main and auxiliary stirring shafts, driven by dual-head motors, are combined with a quarter-residual gear and a combination of main and auxiliary stirring blades to achieve uniform mixing of the slurry. It is also equipped with a dust collection device to collect dust.
It improves the mixing uniformity of the grout, ensures stable quality of grouting materials, protects the working environment, and extends equipment life.
Smart Images

Figure CN224144966U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grouting equipment, and in particular to an automatic grouting equipment for hollow concrete bricks. Background Technology
[0002] Hollow concrete bricks are widely used in the construction industry, and the grouting process is crucial for ensuring the strength and stability of the bricks. Automatic grouting equipment for hollow concrete bricks, as a key tool for achieving efficient and high-quality grouting, plays an important role in building material production. This equipment is mainly used to precisely inject uniformly mixed grout into the internal cavities of hollow bricks to meet the performance requirements of building construction.
[0003] In existing technologies, raw materials such as cement, sand, gravel, and additives are typically added to a mixing tank according to empirical proportions, and a motor drives a single mixing shaft for mixing. After mixing, the slurry is transported to the grouting head via pipes and valves, and the hollow bricks are grouted one by one.
[0004] However, traditional equipment often uses a single mixing shaft, which has a limited mixing range and cannot cover all corners of the mixing tank, easily creating dead zones and resulting in uneven mixing of the slurry. In addition, the continuous uniform rotation of the mixing shaft causes the slurry to form a fixed flow pattern, which cannot fully exert the mixing effect. The quality of different batches of slurry fluctuates greatly, directly affecting the overall performance of the hollow concrete bricks. Therefore, an automatic grouting equipment for hollow concrete bricks is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an automatic grouting equipment for hollow concrete bricks, which aims to solve the problem of uneven grout mixing in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automatic grouting device for hollow concrete bricks, comprising a mounting frame, a mixing tank fixedly connected to the inner wall of the mounting frame, a feeding end fixedly connected to the inner side wall of the mixing tank, a discharging end fixedly connected to the bottom of the mixing tank, a discharging pipe fixedly connected to the inner wall of the discharging end, a mixing mechanism and an auxiliary mechanism arranged above the mounting frame, the mixing mechanism comprising a dual-head motor, a main mixing shaft fixedly connected to the output shaft at the bottom of the dual-head motor, a first gear fixedly connected to the output shaft at the top of the dual-head motor, a second gear meshing with the outer wall of the first gear, a secondary mixing shaft fixedly connected to the outer wall at the bottom of the second gear, and the outer wall of the secondary mixing shaft rotatably connected to the inner wall of the mixing tank.
[0007] As a further description of the above technical solution: a main stirring blade is fixedly connected to the outer wall of the main stirring shaft, and a secondary stirring blade is fixedly connected to the outer wall of the secondary stirring shaft.
[0008] As a further description of the above technical solution: the first gear is a quarter-residual gear.
[0009] As a further description of the above technical solution: the number of the second gear, the auxiliary stirring shaft and the auxiliary stirring blade are three, arranged in a circumferential array.
[0010] As a further description of the above technical solution: the auxiliary mechanism includes a dust collection device, the outer wall of which is fixedly connected to the outer wall of the mixing tank, and a dust collection pipe is rotatably connected to the inner wall of the dust collection device.
[0011] As a further description of the above technical solution: an electric push rod is fixedly connected to the top outer wall of the mixing tank, and a toothed plate is fixedly connected to the output end of the electric push rod. The bottom of the toothed plate is slidably connected to the top outer wall of the mixing tank.
[0012] As a further description of the above technical solution: a limiting rod is fixedly connected to the bottom of the toothed plate, and the bottom end of the limiting rod is slidably connected to the outer wall of the vacuum cleaner.
[0013] As a further description of the above technical solution: a third gear is fixedly connected to the outer wall of the suction pipe, and the outer wall of the third gear meshes with the outer wall of the toothed plate.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, by setting a mixing mechanism, the dual-head motor drives the main stirring shaft to rotate at a constant speed, and the main stirring blade quickly and initially mixes the slurry. The first gear with a quarter remaining tooth cooperates with the second gear in a three-circular array, so that the auxiliary stirring shaft rotates intermittently and the auxiliary stirring blade stirs from different angles, breaking the fixed flow state, avoiding the stirring blind zone, improving the mixing uniformity, and ensuring the stability of the grouting material quality.
[0016] 2. In this utility model, the dust collection device can be used to collect dust generated by stirring, protect the working environment and personnel health, prevent equipment parts from being corroded, and the transmission structure composed of electric push rod, toothed plate, limit rod and third gear can automatically adjust the angle of the dust collection pipe according to the position of dust, accurately collect dust, improve dust collection efficiency, maintain equipment cleanliness and extend equipment service life. Attached Figure Description
[0017] Figure 1 This is a front view of the automatic grouting equipment for hollow concrete bricks proposed in this utility model.
[0018] Figure 2 This is a side view of the automatic grouting equipment for hollow concrete bricks proposed in this utility model.
[0019] Figure 3This is a cross-sectional view of the automatic grouting equipment for hollow concrete bricks proposed in this utility model.
[0020] Figure 4 The automatic grouting equipment for hollow concrete bricks proposed in this utility model Figure 2 Enlarged view of point A in the middle.
[0021] Legend:
[0022] 1. Mounting frame; 2. Mixing tank; 3. Feeding end; 4. Discharge end; 5. Discharge pipe; 6. Mixing mechanism; 601. Dual-head motor; 602. Main mixing shaft; 603. First gear; 604. Second gear; 605. Auxiliary mixing shaft; 606. Main mixing blade; 607. Auxiliary mixing blade; 7. Auxiliary mechanism; 701. Electric actuator; 702. Tooth plate; 703. Limiting rod; 704. Dust collection device; 705. Dust collection pipe; 706. Third gear. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Reference Figure 1 - Figure 3This utility model provides an embodiment of an automatic grouting equipment for hollow concrete bricks, including a mounting frame 1. A mixing tank 2 is fixedly connected to the inner wall of the mounting frame 1 to support the mixing tank 2 and suspend it in the air. A feed end 3 is fixedly connected to the inner side wall of the mixing tank 2, allowing operators to pour various raw materials required for grouting, such as cement, aggregates, and additives, into the mixing tank 2 in a certain proportion. A discharge end 4 is fixedly connected to the bottom of the mixing tank 2. After mixing, qualified grout is conveyed out through the discharge end 4 for the grouting process of hollow concrete bricks. A discharge pipe 5 is fixedly connected to the inner wall of the discharge end 4, which further guides the grout to be discharged from the discharge end 4. The pipe diameter and length can be adjusted according to the actual use scenario to meet different discharge requirements. A mixing mechanism 6 and an auxiliary mechanism 7 are set above the mounting frame 1. The mixing mechanism 6 includes a double-head motor 601. The output shaft of the mixing tank 2 is fixedly connected to the main stirring shaft 602. The main stirring shaft 602 rotates and stirs under the drive of the dual-head motor 601. The rotation of the main stirring blade 606 drives the main stirring blade 606 to rotate, generating a strong stirring force to stir the slurry in the mixing tank 2 over a wide range and with high intensity, so that the slurry is initially mixed evenly. The output shaft at the top of the dual-head motor 601 is fixedly connected to the first gear 603. The operation of the dual-head motor 601 will also drive the first gear 603 synchronously. The outer wall of the first gear 603 is meshed with the second gear 604. The rotation of the first gear 603 can drive the rotation of the second gear 604. The outer wall at the bottom of the second gear 604 is fixedly connected to the auxiliary stirring shaft 605. The rotation of the second gear 604 will drive the auxiliary stirring shaft 605 to rotate, which plays an auxiliary stirring role. The outer wall of the auxiliary stirring shaft 605 is rotatably connected to the inner wall of the mixing tank 2, which plays a stable load-bearing role and allows the auxiliary stirring shaft 605 to rotate stably.
[0025] Reference Figure 2 - Figure 4The main stirring shaft 602 has a main stirring blade 606 fixedly connected to its outer wall. The main stirring shaft 602 rotates at high speed under the drive of the dual-head motor 601. It is one of the main components for mixing slurry. By rotating itself, it drives the main stirring blade 606 to rotate, generating a strong stirring force to perform large-scale and high-intensity mixing of the slurry in the mixing tank 2, so that the slurry is initially mixed evenly. The auxiliary stirring shaft 605 has an auxiliary stirring blade 607 fixedly connected to its outer wall. The first gear 603 is a quarter-residual gear, so that the second gear 604 can only be driven to rotate when the toothed part of the first gear 603 is engaged, thereby realizing the intermittent rotation of the auxiliary stirring shaft 605. The intermittent rotation of the secondary stirring shaft 605 can break the fixed flow pattern that the slurry may form during the stirring process, increase the randomness and complexity of the stirring, avoid the occurrence of stirring blind spots, and further improve the mixing uniformity of the slurry. The number of the second gear 604, the secondary stirring shaft 605 and the secondary stirring blade 607 are three, arranged in a circumferential array, which stirs the slurry from multiple angles at the same time, expands the stirring range, makes the stirring more comprehensive and uniform, and effectively improves the stirring effect. Moreover, only one second gear 604 can mesh with the first gear 603 to ensure that the slurry is fully mixed at all positions.
[0026] Reference Figure 2 - Figure 4The auxiliary mechanism 7 includes a dust collection device 704, whose outer wall is fixedly connected to the outer wall of the mixing tank 2. The dust collection device 704 is used to collect the dust generated during the mixing process, preventing the dust from flying into the working environment. This not only improves the working environment and protects the health of the operators, but also prevents the dust from corroding other parts of the equipment and extends the service life of the equipment. A dust collection pipe 705 is rotatably connected to the inner wall of the dust collection device 704. The dust collection pipe 705 can rotate inside the dust collection device 704. By adjusting its angle, it can more flexibly target the dust generated inside the mixing tank 2. Dust is vacuumed in the dusty area to improve coverage and ensure maximum dust collection, maintaining a clean working environment. An electric actuator 701 is fixedly connected to the top outer wall of the mixing tank 2. A toothed plate 702 is fixedly connected to the output end of the electric actuator 701. The electric actuator 701 can control the movement of the toothed plate 702 through its telescopic movement, thereby adjusting the rotation angle of the suction pipe 705. This allows the suction pipe 705 to better adapt to changes in the position of dust generated during mixing, improving the suction effect. The bottom of the toothed plate 702 is slidably connected to the top outer wall of the mixing tank 2. Driven by the electric actuator 701, the toothed plate slides along the top outer wall of the mixing tank 2. It cooperates with the third gear 706, converting the linear motion of the electric actuator 701 into the rotation of the third gear 706, thereby driving the suction pipe 705 to rotate and adjusting its angle. A limit rod 703 is fixedly connected to the bottom of the toothed plate 702. The bottom end of the limit rod 703 is slidably connected to the outer wall of the vacuum cleaner 704. The limit rod 703 ensures that the toothed plate 702 can move smoothly on the top of the mixing tank 2 and provides stable support for the toothed plate 702, ensuring its stability during movement. There will be no shaking or deviation during the process, ensuring normal meshing with the third gear 706, thereby achieving stable adjustment of the angle of the suction pipe 705. The third gear 706 is fixedly connected to the outer wall of the suction pipe 705, and the outer wall of the third gear 706 meshes with the outer wall of the toothed plate 702. When the toothed plate 702 moves, the third gear 706 rotates accordingly, thereby driving the suction pipe 705 to rotate. This realizes the function of controlling the rotation angle of the suction pipe 705 through the linear motion of the electric push rod 701, enabling the dust collection equipment 704 to better adapt to the changes in dust generated during the mixing process.
[0027] Working principle: By controlling the start of the dual-head motor 601, its bottom output shaft drives the main stirring shaft 602 to rotate at a constant speed. The main stirring blades 606 on the main stirring shaft 602 rotate accordingly, generating a strong stirring force on the slurry in the mixing tank 2, forming a large-scale liquid flow circulation in the mixing tank 2, so that the slurry is initially mixed evenly. The top output shaft of the dual-head motor 601 drives the first gear 603 to rotate. Since the first gear 603 is a quarter-residual gear, during its rotation, it only meshes with the second gear 604 for one-quarter of the time per revolution. When engaged, the first gear 603 drives the second gear 604 to rotate, which in turn causes the auxiliary stirring shaft 605 fixedly connected to the bottom of the second gear 604 to rotate. When the auxiliary stirring shaft 605 rotates, the auxiliary stirring blades 607 on its outer wall stir the slurry from different angles, complementing the stirring area of the main stirring blades 606. Furthermore, the intermittent rotation of the auxiliary stirring shaft 605 breaks the fixed flow pattern that the slurry may form, increases the randomness and complexity of the stirring, avoids stirring blind spots, and further improves the uniformity of slurry mixing. Then, the grouting operation can be carried out on the hollow bricks.
[0028] If dust is generated during the mixing process, the dust collection device 704 is activated. Depending on the location of the dust, the electric actuator 701 is activated. The electric actuator 701 extends or retracts, and its output end pushes the toothed plate 702 to slide on the top outer wall of the mixing tank 2. The linear motion of the toothed plate 702 is converted into the rotation of the third gear 706, which in turn drives the dust collection pipe 705 to rotate inside the dust collection device 704. By adjusting the angle of the dust collection pipe 705, it can be aimed at the area inside the mixing tank 2 where dust is generated for dust collection, thus keeping the working environment clean.
[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. Automatic grouting equipment for concrete hollow bricks, comprising a mounting frame (1), characterized in that: A mixing tank (2) is fixedly connected to the inner wall of the mounting frame (1). A feeding end (3) is fixedly connected to the inner side wall of the mixing tank (2). A discharging end (4) is fixedly connected to the bottom of the mixing tank (2). A discharging pipe (5) is fixedly connected to the inner wall of the discharging end (4). A mixing mechanism (6) and an auxiliary mechanism (7) are provided above the mounting frame (1). The mixing mechanism (6) includes a dual-head motor (601), the output shaft at the bottom of the dual-head motor (601) is fixedly connected to a main stirring shaft (602), the output shaft at the top of the dual-head motor (601) is fixedly connected to a first gear (603), the outer wall of the first gear (603) is meshed with a second gear (604), the outer wall at the bottom of the second gear (604) is fixedly connected to a secondary stirring shaft (605), and the outer wall of the secondary stirring shaft (605) is rotatably connected to the inner wall of the mixing tank (2).
2. The automatic grouting apparatus for concrete hollow bricks according to claim 1, characterized in that: A main stirring blade (606) is fixedly connected to the outer wall of the main stirring shaft (602), and a secondary stirring blade (607) is fixedly connected to the outer wall of the secondary stirring shaft (605).
3. The automatic grouting apparatus for concrete hollow bricks according to claim 2, characterized in that: The first gear (603) is a quarter-residual gear.
4. The automatic grouting apparatus for concrete hollow bricks according to claim 3, characterized in that: The second gear (604), the auxiliary stirring shaft (605), and the auxiliary stirring blade (607) are each in a three-dimensional array.
5. The automatic grouting apparatus for concrete hollow bricks according to claim 1, characterized in that: The auxiliary mechanism (7) includes a vacuum cleaner (704), the outer wall of which is fixedly connected to the outer wall of the mixing tank (2), and a vacuum pipe (705) is rotatably connected to the inner wall of the vacuum cleaner (704).
6. The automatic grouting apparatus for concrete hollow bricks according to claim 1, characterized in that: An electric actuator (701) is fixedly connected to the top outer wall of the mixing tank (2). A toothed plate (702) is fixedly connected to the output end of the electric actuator (701). The bottom of the toothed plate (702) is slidably connected to the top outer wall of the mixing tank (2).
7. The automatic grouting apparatus for concrete hollow bricks according to claim 6, characterized in that: The bottom of the toothed plate (702) is fixedly connected to a limiting rod (703), and the bottom end of the limiting rod (703) is slidably connected to the outer wall of the vacuum cleaner (704).
8. The automatic grouting equipment for hollow concrete bricks according to claim 5, characterized in that: A third gear (706) is fixedly connected to the outer wall of the suction pipe (705), and the outer wall of the third gear (706) meshes with the outer wall of the toothed plate (702).