A sand and stone spreader

Abstract

The utility model discloses a sand and stone scattering hopper belongs to engineering machinery equipment special purpose shovel technical field. A sand and stone scattering hopper, including shovel, stirring mechanism, discharge mechanism, drive mechanism, sprocket drive mechanism includes first sprocket drive group and second sprocket drive group, first sprocket drive group sets up in one end of discharge mechanism, second sprocket drive group sets up in the other end of discharge mechanism and is located one end of stirring mechanism simultaneously, discharge mechanism includes drum, mounting shaft, a plurality of rolling tooth piece, the drum passes through mounting shaft with both side walls rotation connection of shovel, rolling tooth piece evenly staggered distribution sets up on the outer wall of drum. The sand and stone scattering hopper of the utility model has the effect of improving vehicle driving safety on the snow rescue or other wet and slippery road surface, and has broad market prospect.

Description

Technical Field

[0001] This utility model relates to the field of special purpose buckets for engineering machinery and equipment, and in particular to a sand and gravel spreading bucket. Background Technology

[0002] When a vehicle is traveling on a road, it primarily relies on the friction between its wheels and the road surface to maintain normal motion. However, when the road surface is slippery, such as in rainy, snowy, or flooded conditions, the friction between the wheels and the road surface decreases rapidly. This sharp drop in friction leads to insufficient traction, making the vehicle highly susceptible to skidding. Once a vehicle skids, it may become unable to move and become stuck, or more seriously, it may cause traffic accidents, traffic congestion, and even pose a serious threat to the safety of drivers and other road users.

[0003] To effectively address this situation and improve vehicle safety on slippery roads, measures are typically taken to increase road surface friction. A common method is to spread sand, gravel, or other fine materials onto the wet surface to improve its roughness and thus increase the coefficient of friction. However, under current technological conditions, this spreading operation is often accomplished using equipment driven by a vibratory motor. While this method is simple to operate, the limitations of the vibratory motor's working principle and mechanical structure make uneven material distribution during the spreading process prone to occur. This not only results in an uneven paved surface, affecting vehicle stability, but also leads to material waste, increases construction costs, and fails to fully realize its intended purpose. Utility Model Content

[0004] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0005] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a sand and gravel spreading bucket. This invention's sand and gravel spreading bucket is ingeniously designed and improves vehicle driving safety in snow rescue or other slippery road conditions, thus possessing broad market prospects.

[0006] To achieve the above objectives, the technical solution of this utility model is: a sand and gravel spreading bucket, comprising: The bucket has a discharge port at the bottom of its rear wall; A mixing mechanism is disposed inside the bucket; A discharge mechanism is located at the discharge port; A sprocket drive mechanism includes a first sprocket drive group and a second sprocket drive group. The first sprocket drive group is disposed at one end of the discharge mechanism, and the second sprocket drive group is disposed at the other end of the discharge mechanism and is also located at one end of the stirring mechanism. A drive mechanism for driving the first sprocket drive assembly; The discharge mechanism includes a roller, a mounting shaft, and several rolling teeth. The roller is rotatably connected to the two side walls of the bucket via the mounting shaft, and the rolling teeth are evenly and alternately distributed on the outer wall of the roller.

[0007] This invention adds a mixing mechanism and a discharge mechanism inside the bucket, and a drive mechanism and a sprocket transmission mechanism on the outside. The drive mechanism drives the sprocket transmission mechanism, which in turn drives the discharge mechanism to discharge sand and gravel. At the same time, the discharge mechanism drives the mixing mechanism to rotate, loosening the sand and gravel. The loosened sand and gravel, driven by the discharge mechanism, is further evenly discharged from the bucket and evenly spread on the wet and slippery road surface, thereby increasing the friction between the road surface and the vehicle tires and improving the safety of vehicles driving on wet and slippery roads.

[0008] In some embodiments, the mixing mechanism includes a left mixing shaft, a right mixing shaft, a middle mixing shaft sleeve, and a plurality of agitating teeth. One end of the left mixing shaft is rotatably connected to the side wall of the bucket, and the other end of the left mixing shaft is connected to one end of the middle mixing shaft sleeve. One end of the right mixing shaft is rotatably connected to the side wall of the bucket, and the other end of the right mixing shaft is connected to the other end of the middle mixing shaft sleeve. The agitating teeth are evenly and alternately distributed on the left mixing shaft, the middle mixing shaft sleeve, and the right mixing shaft. This invention configures the mixing shaft in the mixing mechanism as a left mixing shaft, a right mixing shaft, and a middle mixing shaft sleeve, and the three are movably connected by bolts to form a single mixing shaft, so that the mixing shaft can be disassembled and replaced after wear. Furthermore, this invention also has agitating teeth evenly and alternately distributed on the mixing shaft, which creates a multi-directional cutting and tumbling effect on the sand and gravel during the mixing process, effectively preventing the accumulation or clumping of sand and gravel in the bucket and ensuring that sand and gravel of different particle sizes are fully mixed. Meanwhile, the agitator blades are made of wear-resistant alloy steel, and their surface is hardened to a hardness of HRC55-60, significantly improving their wear resistance and extending the overall service life of the agitation mechanism. When the agitator shaft drives the agitator blades to rotate, the friction between the blades and the sand further promotes the relative movement between the sand and gravel, dispersing wet sand or sand containing mud that might otherwise be stuck together, creating favorable conditions for smooth discharge by the subsequent discharge mechanism.

[0009] In some embodiments, the stirring mechanism further includes a stirring protective cover disposed within the bucket. By providing a stirring protective cover within the bucket, this invention isolates the material within the entire bucket from the area requiring stirring, reducing the resistance area that needs to be overcome during stirring, thereby reducing the power required for the drive mechanism.

[0010] In some embodiments, the first sprocket drive assembly includes a first driving wheel, a first driven wheel, and a first chain. The first driving wheel is connected to the drive mechanism, the first driven wheel is connected to the discharge mechanism, and the first driven wheel is connected to the first driving wheel via the first chain. This invention achieves power transmission between the drive mechanism and the discharge mechanism through a chain drive using a first sprocket drive assembly. This method offers high transmission efficiency and smooth operation, effectively reducing energy loss during power transmission. Furthermore, the first sprocket drive assembly has a simple and compact structure, facilitating installation and maintenance. When the chain becomes loose or worn, transmission performance can be quickly restored by adjusting the tensioning device or replacing the chain, ensuring that the discharge mechanism can continuously and stably transport the mixed sand and gravel to the spreading device. In addition, compared to belt drives and other methods, sprocket drives have stronger load-bearing capacity and tensile strength, adapting to larger load changes in sand and gravel spreading operations and preventing the overall equipment's working efficiency from being affected by transmission component failure.

[0011] In some embodiments, the second sprocket drive assembly includes a second driving wheel, a second driven wheel, and a second chain. The second driving wheel is connected to the discharge mechanism, and the second driven wheel is connected to the mixing mechanism. The second driven wheel is connected to the second driving wheel via the second chain. This invention, by setting up a second sprocket drive assembly, enables the mixing mechanism to operate synchronously with the power of the discharge mechanism, achieving coordinated operation of mixing and discharge under a single power source. This effectively simplifies the overall transmission system structure of the equipment and reduces manufacturing costs and energy consumption. This transmission method also has the advantages of high transmission efficiency and operational stability, ensuring that the mixing mechanism fully and uniformly mixes the sand and gravel, preventing clumping or accumulation before spreading. Furthermore, the structural design of the second sprocket drive assembly is compatible with the first sprocket drive assembly, facilitating unified installation, commissioning, and subsequent maintenance. When the second chain wears or loosens, it can be adjusted or replaced in a similar manner to the first chain to quickly restore its transmission function, ensuring that the power transmission between the mixing mechanism and the discharge mechanism remains efficient and stable, thereby improving the operational reliability and continuity of the entire sand and gravel spreading bucket. In addition, the second sprocket drive group enables the rotation speed of the mixing mechanism to match the conveying speed of the discharge mechanism. By rationally designing the gear ratio of the second driving wheel and the second driven wheel, the mixing intensity and discharge speed can be flexibly adjusted according to the characteristics of different sands and gravels and the spreading requirements, so as to achieve the best sand and gravel mixing and spreading effect.

[0012] In some embodiments, a rubber plate is provided at the discharge port, and the rubber plate is located below the discharge mechanism. This invention facilitates the discharge of agitated sand and gravel from the bucket by providing a rubber plate at the discharge port.

[0013] In some embodiments, a brush is provided at the discharge port, and the brush is located above the discharge mechanism. By providing the brush, this invention can promptly remove fine sand adhering to the roller, preventing fine sand from adhering to the outer ring of the roller and increasing frictional resistance.

[0014] In some embodiments, the discharge mechanism further includes a closing ring, which is sleeved on the mounting shaft and located between the drum and the side wall of the bucket. By incorporating the closing ring, this invention effectively blocks the gap between the drum and the bucket side wall, preventing sand and gravel particles from leaking through the gap during mixing and discharge, thus avoiding material waste and pollution of the equipment operating environment. Simultaneously, the closing ring reduces direct friction between the drum and the bucket side wall during drum rotation, lowering the wear rate of components and extending the service life of the equipment. Furthermore, the closing ring ensures more precise positioning of the drum on the mounting shaft, guaranteeing stable coaxiality during high-speed rotation, further improving the operational smoothness and reliability of the discharge mechanism.

[0015] In some embodiments, the inner wall of the bucket is provided with ribs. The ribs significantly enhance the overall structural strength and deformation resistance of the bucket, especially when loading large amounts of sand and gravel or encountering impacts from harder materials. They effectively disperse stress, preventing dents or cracks in the inner wall of the bucket due to excessive force. Simultaneously, the ribs also guide and separate the sand and gravel within the bucket, optimizing material distribution and reducing flow fluctuations during spreading caused by uneven material accumulation, thus improving spreading accuracy. Furthermore, the triangular or other stable structures formed between the ribs and the inner wall of the bucket can, to some extent, reduce the vibration amplitude of the bucket under both no-load and full-load conditions, reducing noise during equipment operation and improving the operating environment.

[0016] In some embodiments, the outer wall of the bucket is provided with a fixing mechanism. This invention uses a fixing mechanism to facilitate the connection of the bucket to a loader for operation.

[0017] The working principle of this utility model is as follows: The drive mechanism is activated, which drives the drum of the discharge mechanism to rotate via the first sprocket transmission group, achieving a first-stage speed reduction. While the drum rotates, the mixing shaft of the mixing mechanism is driven by the second sprocket transmission group to loosen the sand and gravel in the bucket, achieving a second-stage speed reduction. The loosened sand and gravel are further evenly discharged from the discharge port of the bucket under the drive of the discharge mechanism. The discharged sand and gravel are evenly spread on the wet and slippery road surface, thereby increasing the friction between the road surface and the vehicle tires and improving the safety of the vehicle when driving on wet and slippery roads.

[0018] In addition, brushes are installed at the discharge port and above the drum. These brushes can promptly remove fine sand adhering to the drum, preventing it from sticking to the outer ring and increasing frictional resistance. Furthermore, a rubber plate is movably installed at the bucket discharge port. As the drum rotates, sand and gravel are discharged from the gap formed by the rubber plate and the outer ring of the drum, and evenly spread onto the slippery road surface, thereby increasing the friction on wet surfaces and improving vehicle safety on muddy roads.

[0019] In summary, the beneficial effects of this utility model are: This invention achieves thorough mixing and uniform discharge of sand and gravel before spreading by setting up a coordinated working mode of mixing and discharging mechanisms, effectively solving the problems of sand and gravel clumping and uneven spreading that are prone to occur in traditional spreading buckets.

[0020] This invention sets the stirring mechanism as a left stirring shaft, a right stirring shaft, and a middle stirring shaft sleeve, which not only facilitates disassembly and replacement after wear and reduces maintenance costs, but also allows the staggered stirring teeth to perform multi-directional cutting and tumbling of sand and gravel. Combined with the stirring protective cover for reasonable division of the stirring area, it significantly improves the stirring effect while reducing drive power loss.

[0021] This invention features a dual-set sprocket drive mechanism that uses a single power source to drive the mixing and discharging processes synchronously. This simplifies the transmission structure and reduces energy consumption. The high efficiency and strong load-bearing capacity of the chain drive ensure stable operation of the equipment under heavy load conditions.

[0022] In the discharge mechanism of this utility model, the cooperation between the roller and the rolling toothed plate, combined with the setting of the rubber plate and brush at the discharge port, not only ensures the smooth discharge and uniform spreading of sand and gravel, but also cleans the fine sand adhering to the surface of the roller in time, avoiding increased frictional resistance and affecting the discharge efficiency.

[0023] The design of the inner wall ribs and outer wall fixing mechanism of the bucket further enhances the structural strength, operational stability and installation adaptability of the equipment.

[0024] This utility model, through the coordinated action of the mixing mechanism, the discharging mechanism, the sprocket transmission mechanism, and the drive mechanism, can effectively improve vehicle driving safety by increasing road surface friction during sand and gravel spreading operations on wet and slippery roads. It has significant advantages such as compact structure, convenient operation, and long service life, and has high practical value and promotion prospects.

[0025] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0026] Undoubtedly, such and other objects of this invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and illustrations.

[0027] To make the above and other objects, features and advantages of this utility model more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0028] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0029] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of the sand and gravel spreading bucket of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the sand and gravel spreading bucket of this utility model. Figure 2 ; Figure 3 This utility model Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the structure of the sand and gravel spreading bucket of this utility model. Figure 3 ; Figure 5 This utility model Figure 2 Enlarged view of point B in the middle; Figure 6This is a schematic diagram of the mixing mechanism in the sand and gravel spreading hopper of this utility model; Figure 7 This is a schematic diagram of the material discharge mechanism in the sand and gravel spreading hopper of this utility model.

[0032] Explanation of key figure labels: 1. Bucket; 11. Ribs; 12. Discharge port; 13. Rubber plate; 14. Brush; 2. Stirring mechanism; 21. Left stirring shaft; 22. Right stirring shaft; 23. Middle stirring shaft sleeve; 24. Stirring toothed blades; 25. Stirring protective cover; 3. Discharge mechanism; 31. Roller; 32. Mounting shaft; 33. Rolling gear; 34. Closing ring; 4. Sprocket drive mechanism; 41. First sprocket drive assembly; 411. First driving wheel; 412. First driven wheel; 413. First chain; 42. Second sprocket drive assembly; 421. Second driving wheel; 422. Second driven wheel; 423. Second chain; 5. Drive mechanism; 6. Fixed structure. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0034] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies at the connection point are not connected through a transitional structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0036] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] Reference Figures 1-7 According to some embodiments of this utility model, this utility model provides a sand and gravel spreading bucket. The sand and gravel spreading bucket includes a bucket 1, a mixing mechanism 2, a discharging mechanism 3, a sprocket drive mechanism 4, and a drive mechanism 5. The bucket 1 has a discharge port 12 at its rear bottom wall; the mixing mechanism 2 is located inside the bucket 1; the discharging mechanism 3 is located at the discharge port 12 and includes a roller 31, a mounting shaft 32, and several rolling toothed plates 33. The roller 31 is rotatably connected to the two side walls of the bucket 1 via the mounting shaft 32, and the rolling toothed plates 33 are evenly and alternately distributed on the outer wall of the roller 31. The roller 31 is a seamless steel pipe; the sprocket drive mechanism 4 includes a first sprocket drive group 41 and a second sprocket drive group 42. The first sprocket drive group 41 is located at one end of the discharging mechanism 3, and the second sprocket drive group 42 is located at the other end of the discharging mechanism 3 and simultaneously at one end of the mixing mechanism 2; the drive mechanism 5 drives the first sprocket drive group 41.

[0038] This invention adds a mixing mechanism 2 and a discharge mechanism 3 inside the bucket 1, and a drive mechanism 5 and a sprocket transmission mechanism 4 to the outside. The drive mechanism 5 drives the sprocket transmission mechanism 4, which in turn drives the discharge mechanism 3 to discharge the sand and gravel. At the same time, the discharge mechanism 3 drives the mixing mechanism 2 to rotate, loosening the sand and gravel. The loosened sand and gravel, driven by the discharge mechanism 3, is further evenly discharged from the bucket 1 and evenly spread on the wet and slippery road surface, thereby increasing the friction between the road surface and the vehicle tires and improving the safety of the vehicle when driving on wet and slippery roads.

[0039] According to some embodiments of this utility model, optionally, the stirring mechanism 2 includes a left stirring shaft 21, a right stirring shaft 22, a middle stirring shaft sleeve 23, and a plurality of stirring teeth 24. One end of the left stirring shaft 21 is rotatably connected to the side wall of the bucket 1, and the other end of the left stirring shaft 21 is bolted to one end of the middle stirring shaft sleeve 23. One end of the right stirring shaft 22 is rotatably connected to the side wall of the bucket 1, and the other end of the right stirring shaft 22 is bolted to the other end of the middle stirring shaft sleeve 23. The stirring teeth 24 are evenly and alternately distributed on the left stirring shaft 21, the middle stirring shaft sleeve 23, and the right stirring shaft 22. The inner diameter of the middle stirring shaft sleeve 23 is larger than the outer diameter of the left stirring shaft 21 and the outer diameter of the right stirring shaft 22, and the middle stirring shaft sleeve 23 is a seamless steel pipe. This utility model sets the stirring shaft in the stirring mechanism 2 as a left stirring shaft 21, a right stirring shaft 22, and a middle stirring shaft sleeve 23, and the three are movably connected by bolts to form a whole stirring shaft, so that the stirring shaft can be disassembled and replaced after wear. Furthermore, this invention also features agitator blades 24 evenly and interlaced on the mixing shaft. During the mixing process, these blades create multi-directional cutting and tumbling effects on the sand and gravel, effectively preventing accumulation or clumping of sand and gravel within the bucket 1 and ensuring that sand and gravel of different particle sizes are thoroughly mixed. Simultaneously, the agitator blades 24 are made of wear-resistant alloy steel, with a surface hardened to a hardness of HRC55-60, significantly improving their wear resistance and extending the overall service life of the mixing mechanism 2. When the mixing shaft drives the agitator blades 24 to rotate, the friction between the blades and the sand and gravel further promotes the relative movement between them, dispersing wet sand or sand and gravel containing mud that might otherwise be stuck together, creating favorable conditions for smooth discharge by the subsequent discharge mechanism 3.

[0040] According to some embodiments of the present invention, optionally, the stirring mechanism 2 further includes a stirring protective cover 25 disposed within the bucket 1. By providing a stirring protective cover 25 within the bucket 1, the present invention can isolate the material within the entire bucket 1 from the area requiring stirring, reducing the resistance area that needs to be overcome during stirring, thereby reducing the power required for the drive mechanism 5.

[0041] According to some embodiments of this utility model, optionally, the first sprocket drive assembly 41 includes a first driving wheel 411, a first driven wheel 412, and a first chain 413. The first driving wheel 411 is connected to the drive mechanism 5, the first driven wheel 412 is connected to the discharge mechanism 3, and the first driven wheel 412 is connected to the first driving wheel 411 via the first chain 413. This utility model achieves power transmission between the drive mechanism 5 and the discharge mechanism 3 through the first sprocket drive assembly 41 and chain drive, resulting in high transmission efficiency and smooth operation, effectively reducing energy loss during power transmission. Simultaneously, the first sprocket drive assembly 41 has a simple and compact structure, facilitating installation and maintenance. When the chain becomes loose or worn, the transmission performance can be quickly restored by adjusting the tensioning device or replacing the chain, ensuring that the discharge mechanism 3 can continuously and stably transport the mixed sand and gravel to the spreading device. In addition, compared with belt drives and other methods, sprocket drives have stronger load-bearing capacity and tensile strength, which can adapt to large load changes in sand and gravel spreading operations and avoid affecting the overall working efficiency of the equipment due to the failure of transmission components.

[0042] According to some embodiments of this utility model, optionally, the second sprocket transmission group 42 includes a second driving wheel 421, a second driven wheel 422, and a second chain 423. The second driving wheel 421 is connected to the discharge mechanism 3, and the second driven wheel 422 is connected to the mixing mechanism 2. The second driven wheel 422 is connected to the second driving wheel 421 via the second chain 423. By setting the second sprocket transmission group 42, this utility model can drive the mixing mechanism 2 to operate synchronously with the power of the discharge mechanism 3, realizing the coordinated operation of mixing and discharge under a single power source. This effectively simplifies the overall transmission system structure of the equipment and reduces the manufacturing cost and energy consumption of the equipment. This transmission method also has the advantages of high transmission efficiency and operational stability, ensuring that the mixing mechanism 2 fully and evenly mixes the sand and gravel, avoiding the occurrence of agglomeration or accumulation of sand and gravel before spreading. Furthermore, the structural design of the second sprocket drive assembly 42 is compatible with that of the first sprocket drive assembly 41, facilitating unified installation, commissioning, and subsequent maintenance. When the second chain 423 wears or loosens, its transmission function can be quickly restored using an adjustment or replacement method similar to that of the first chain 413, ensuring that the power transmission between the mixing mechanism 2 and the discharge mechanism 3 remains efficient and stable, thereby improving the operational reliability and continuity of the entire sand and gravel spreading bucket. In addition, the setting of the second sprocket drive assembly 42 allows the rotational speed of the mixing mechanism 2 to match the conveying speed of the discharge mechanism 3. By rationally designing the tooth ratio of the second driving wheel 421 to the second driven wheel 422, the mixing intensity and discharge speed can be flexibly adjusted according to the characteristics of different sands and gravels and the spreading requirements to achieve the best sand and gravel mixing and spreading effect.

[0043] According to some embodiments of this utility model, optionally, a rubber plate 13 is provided at the discharge port 12, and the rubber plate 13 is located below the discharge mechanism 3. This utility model provides a rubber plate 13 at the discharge port 12 to facilitate the discharge of the mixed sand and gravel from the bucket 1.

[0044] According to some embodiments of this utility model, optionally, a brush 14 is movably provided at the discharge port 12, and the brush 14 is located above the discharge mechanism 3. By providing the brush 14, this utility model can promptly clean the fine sand adhering to the roller 31, preventing the fine sand from adhering to the outer ring of the roller 31 and increasing the frictional resistance.

[0045] According to some embodiments of this utility model, optionally, the discharge mechanism 3 further includes a closing ring 34, which is sleeved on the mounting shaft 32 and located between the drum 31 and the side wall of the bucket 1. By providing the closing ring 34, this utility model can effectively block the gap between the drum 31 and the side wall of the bucket 1, preventing sand and gravel particles from leaking through the gap during mixing and discharge, thus avoiding material waste and pollution of the equipment operating environment. Simultaneously, the closing ring 34 can also reduce the direct friction between the drum 31 and the side wall of the bucket 1 during rotation, reducing the wear rate of components and extending the service life of the equipment. Furthermore, the closing ring 34 makes the positioning of the drum 31 on the mounting shaft 32 more precise, ensuring stable coaxiality during high-speed rotation, further improving the operational stability and reliability of the discharge mechanism 3.

[0046] According to some embodiments of this utility model, optionally, the inner wall of the bucket 1 is provided with ribs 11. The ribs 11 can significantly enhance the overall structural strength and deformation resistance of the bucket 1, especially when loading a large amount of sand and gravel or encountering impacts from harder materials, effectively dispersing stress and preventing the inner wall of the bucket 1 from denting or cracking due to excessive stress. At the same time, the ribs 11 can also guide and separate the sand and gravel in the bucket 1, optimizing the distribution of materials in the bucket 1, reducing flow fluctuations during the spreading process caused by uneven material accumulation, and improving spreading accuracy. In addition, the triangular or other stable structure formed between the ribs 11 and the inner wall of the bucket 1 can also reduce the vibration amplitude of the bucket 1 under no-load and full-load conditions to a certain extent, reducing noise during equipment operation and improving the operating environment.

[0047] According to some embodiments of the present invention, optionally, a fixing mechanism 6 is provided on the outer wall of the bucket 1. The present invention uses the fixing mechanism 6 to facilitate the connection of the bucket 1 to the loader for operation.

[0048] Start the drive mechanism 5. The drive mechanism 5 drives the drum 31 of the discharge mechanism 3 to rotate through the first sprocket transmission group 41, achieving a first-stage speed reduction. At the same time as the drum 31 rotates, it drives the mixing shaft of the mixing mechanism 2 through the second sprocket transmission group 42 to loosen the sand and gravel in the bucket 1, achieving a second-stage speed reduction. The loosened sand and gravel are further evenly discharged from the discharge port 12 of the bucket 1 under the drive of the discharge mechanism 3. The discharged sand and gravel are evenly spread on the wet and slippery road surface, thereby increasing the friction between the road surface and the vehicle tires and improving the safety of the vehicle when driving on the wet and slippery road surface.

[0049] In addition, brushes 14 are installed at the discharge port 12 and above the roller 31. The brushes 14 can promptly remove fine sand adhering to the roller 31, preventing fine sand from adhering to the outer ring of the roller 31 and increasing frictional resistance. Furthermore, a rubber plate 13 is movably installed on the discharge port 12 of the bucket 1. As the roller 31 rotates, sand and gravel are discharged from the gap formed by the rubber plate 13 and the outer ring of the roller 31 and evenly spread on the wet road surface, thereby increasing the friction of the wet road surface and improving the safety of vehicles driving on muddy roads.

[0050] It should be noted that many specific details have been set forth in the above description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

Claims

1. A sand and gravel spreading bucket, characterized in that, include: The bucket has a discharge port at the bottom of its rear wall; A mixing mechanism is disposed inside the bucket; A discharge mechanism is located at the discharge port; A sprocket drive mechanism includes a first sprocket drive group and a second sprocket drive group. The first sprocket drive group is disposed at one end of the discharge mechanism, and the second sprocket drive group is disposed at the other end of the discharge mechanism and is also located at one end of the stirring mechanism. A drive mechanism for driving the first sprocket drive assembly; The discharge mechanism includes a roller, a mounting shaft, and several rolling teeth. The roller is rotatably connected to the two side walls of the bucket via the mounting shaft, and the rolling teeth are evenly and alternately distributed on the outer wall of the roller.

2. The sand and gravel spreading bucket according to claim 1, characterized in that, The mixing mechanism includes a left mixing shaft, a right mixing shaft, a middle mixing shaft sleeve, and several agitating teeth. One end of the left mixing shaft is rotatably connected to the side wall of the bucket, and the other end of the left mixing shaft is connected to one end of the middle mixing shaft sleeve. One end of the right mixing shaft is rotatably connected to the side wall of the bucket, and the other end of the right mixing shaft is connected to the other end of the middle mixing shaft sleeve. The agitating teeth are evenly and alternately distributed on the left mixing shaft, the middle mixing shaft sleeve, and the right mixing shaft.

3. The sand and gravel spreading bucket according to claim 2, characterized in that, The mixing mechanism also includes a mixing protective cover disposed inside the bucket.

4. The sand and gravel spreading bucket according to claim 1, characterized in that, The first sprocket drive assembly includes a first driving wheel, a first driven wheel, and a first chain. The first driving wheel is connected to the drive mechanism, the first driven wheel is connected to the discharge mechanism, and the first driven wheel is connected to the first driving wheel via the first chain.

5. The sand and gravel spreading bucket according to claim 1, characterized in that, The second sprocket drive assembly includes a second driving wheel, a second driven wheel, and a second chain. The second driving wheel is connected to the discharge mechanism, the second driven wheel is connected to the mixing mechanism, and the second driven wheel is connected to the second driving wheel via the second chain.

6. The sand and gravel spreading bucket according to claim 1, characterized in that, A rubber plate is provided at the discharge port, and the rubber plate is located below the discharge mechanism.

7. The sand and gravel spreading bucket according to claim 1, characterized in that, A brush is provided at the discharge port, and the brush is located above the discharge mechanism.

8. The sand and gravel spreading bucket according to claim 1, characterized in that, The discharge mechanism also includes a closing ring, which is sleeved on the mounting shaft and located between the roller and the side wall of the bucket.

9. The sand and gravel spreading bucket according to claim 1, characterized in that, The inner wall of the bucket is provided with ribs.

10. The sand and gravel spreading bucket according to claim 1, characterized in that, The outer wall of the bucket is equipped with a fixing mechanism.

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