A bucket and a working machine

By installing movable upper push plate and lower scraper plate inside the bucket, and using hydraulic cylinder to drive horizontal unloading, the contradiction between the bucket's high unloading height and stability is resolved, improving the unloading effect and maintaining the overall stability of the machine.

CN122446754APending Publication Date: 2026-07-24XCMG CONSTRUCTION MACHINERY CO LTD SCIENCE & TECHNOLOGY BRANCH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XCMG CONSTRUCTION MACHINERY CO LTD SCIENCE & TECHNOLOGY BRANCH
Filing Date
2026-05-28
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In certain scenarios, existing buckets require larger capacity and higher unloading height due to low material density and high stacking height. However, the long bucket bottom is prone to sticking and difficult to clean, leading to material mixing or contamination, and it conflicts with the stability requirements of a shorter boom.

Method used

Movable upper push plate and lower scraper plate are installed in the loading chamber of the bucket. The upper push plate and lower scraper plate are driven by hydraulic cylinder to work together to achieve horizontal unloading, avoid the bucket body from tipping over, increase the unloading height without reducing the overall load and maintain stability.

Benefits of technology

Without lengthening the loading boom, a higher unloading height and overall machine stability are achieved, while avoiding the problems of material adhesion and cleaning difficulties, ensuring the stability and cleanliness of the entire machine.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of engineering machinery, and in particular to a bucket and engineering machinery. The present application provides a bucket, which comprises a bucket body, an upper pushing plate, an oil cylinder and a lower scraping plate; the oil cylinder can drive the upper pushing plate to rotate relative to the hinge plate when the oil cylinder is extended, and the upper pushing plate drives the lower scraping plate to slide along the bottom plate to push the material in the material loading cavity out. Compared with the way of unloading by turning the bucket body down, the present application can realize horizontal unloading without turning the bucket body down, thereby effectively improving the unloading height of the loader without lengthening the loader arm, and without reducing the carrying capacity of the whole machine and ensuring the stability of the whole machine. The present application effectively solves the contradiction between the unloading height and the carrying stability by arranging the movable upper pushing plate and the lower scraping plate in the material loading cavity of the bucket body.
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Description

Technical Field

[0001] This invention relates to the field of engineering machinery technology, specifically to a bucket and engineering machinery. Background Technology

[0002] The bucket is a common accessory for loaders. It is connected to the loader's linkage system and acts as an end effector to perform actions such as lifting, lowering, retracting, and tipping. It is an important component of the loader for loading, unloading, and transportation operations.

[0003] In certain scenarios, such as grain processing, garbage processing, and hay and manure processing, due to the low density of materials and their high stacking height, a larger bucket capacity and a higher unloading height are often required. However, the bucket bottom overhang of a large-capacity bucket is longer, which often requires a shorter boom to ensure the load-bearing capacity and stability of the whole machine. This conflicts with the requirement for a higher unloading height. At the same time, the long bucket bottom is more prone to material adhesion and accumulation, making cleaning difficult and causing material mixing or pollution in multi-condition operations. Summary of the Invention

[0004] The purpose of this invention is to provide a bucket and engineering machinery. By setting movable upper push plate and lower scraper plate in the loading cavity of the bucket, the upper push plate and lower scraper plate work together under the drive of the hydraulic cylinder to push the material in the bucket out for unloading. Unloading can be achieved in a horizontal position without tilting the bucket body. The unloading height of the loader is effectively increased without lengthening the loader boom, and the overall load capacity is not reduced while ensuring the stability of the machine.

[0005] In a first aspect, the present invention provides a bucket comprising: The bucket body includes a bottom plate, a curved plate, and side plates. The side plates are located on both sides of the bottom plate and the curved plate to form a material loading cavity. The curved plate is connected to a hinge plate, and the hinge plate is provided with a hinge hole and a cylinder bottom hinge hole. The upper pusher plate has a hinge hole two and a cylinder head hinge hole on its back side; the upper part of the upper pusher plate is hinged to the hinge plate through the hinge hole two and the hinge hole one. The hydraulic cylinder has its mounting end and telescopic end hinged to the cylinder bottom hinge hole and cylinder head hinge hole, respectively. The lower scraper is movably connected to the lower end of the upper pusher plate; When the hydraulic cylinder extends, it can drive the upper push plate to rotate relative to the hinge plate around the second hinge hole. The upper push plate drives the lower scraper to slide along the bottom plate to push out the material in the loading chamber.

[0006] Optionally, it also includes: A crossbeam connects the two side plates and is connected to the hinge plate.

[0007] Optionally, the hinge plate includes: The central hinge plate connects to the middle of the curved plate; The hydraulic cylinder hinge plate is located near the side plate of the curved plate. The boom hinge plate is located between the center hinge plate and the cylinder hinge plate; The front ends of the central hinge plate, the hydraulic cylinder hinge plate, the boom hinge plate, and the side plate are all provided with hinge holes one; the rear end of the boom hinge plate is provided with hinge holes three for hinged with the boom. The cylinder hinge plate and side plate are provided with cylinder bottom hinge holes.

[0008] Optionally, the second hinge hole is located on the upper part of the back of the upper pusher plate, and the cylinder head hinge hole is located on both sides of the lower part of the back of the upper pusher plate.

[0009] Optionally, the second hinge hole is provided in multiple locations and is arranged at intervals along the length direction of the upper push plate.

[0010] Optionally, the bottom end of the upper pusher plate is provided with an upper connecting hole, and the top end of the lower scraper plate is provided with a lower connecting hole; The upper connecting hole of the upper pusher plate and the lower connecting hole of the lower scraper plate are connected by a long shaft, and the lower scraper plate can move relative to the upper pusher plate when it moves with the upper pusher plate. When the hydraulic cylinder retracts to its limit position, the lower scraper plate bends relative to the upper pusher plate and abuts against the bottom plate, and the upper pusher plate and the lower scraper plate retract to the inside of the loading chamber; When the hydraulic cylinder extends to its limit position, the lower scraper is located at the outer edge of the bottom plate and the surface of the lower scraper is flush with the upper pusher plate.

[0011] Optionally, the upper connecting holes are provided in multiple locations and are arranged at intervals at the bottom end of the upper pusher plate, and the lower connecting holes are provided in multiple locations and are arranged at intervals at the top end of the lower scraper plate; When the upper pusher plate and the lower scraper plate are connected, the upper connecting hole and the lower connecting hole are kept coaxial so that the long shaft can be inserted.

[0012] Optionally, the hinge hole one and hinge hole two, the mounting end of the cylinder and the hinge hole at the bottom of the cylinder, and the extension end of the cylinder and the hinge at the cylinder head are all connected by pins.

[0013] Optionally, the base plate, the curved plate, and the side plate are fixed by welding; the curved plate and the hinge plate are fixed by welding.

[0014] Secondly, the present invention provides an engineering machine that includes the aforementioned bucket.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention provides a bucket, comprising a bucket body, an upper pusher plate, a hydraulic cylinder, and a lower scraper plate; the bucket body includes a bottom plate, a curved plate, and side plates, the side plates being located on both sides of the bottom plate and the curved plate to form a material loading cavity; the curved plate is connected to a hinge plate, the hinge plate having a first hinge hole and a cylinder bottom hinge hole; the upper pusher plate has a second hinge hole and a cylinder head hinge hole on its back side; the upper part of the upper pusher plate is hinged to the hinge plate through the second hinge hole and the first hinge hole; the mounting end and the telescopic end of the hydraulic cylinder are respectively hinged to the cylinder bottom hinge hole. The upper scraper plate is movably connected to the lower end of the upper pusher plate at the hinge hole of the cylinder head. When the cylinder extends, it drives the upper pusher plate to rotate relative to the hinge plate around the hinge hole. The upper pusher plate drives the lower scraper plate to slide along the bottom plate to push out the material in the loading chamber. Compared with the method of unloading with a tilting bucket, this invention can achieve horizontal unloading without tilting the bucket, thereby effectively increasing the unloading height of the loader without lengthening the loader boom, and ensuring the stability of the whole machine without reducing the overall load capacity. This invention effectively solves the contradiction between unloading height and load-bearing stability by setting a movable upper pusher plate and lower scraper plate in the loading chamber of the bucket. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a bucket provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a bucket body provided in an embodiment of the present invention; Figure 3 This is a structural schematic diagram of the bucket body from another perspective, provided as an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the upper push plate of a bucket provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the lower scraper of a bucket provided in an embodiment of the present invention; Figure 6 This is a schematic diagram illustrating the use of a bucket according to an embodiment of the present invention.

[0017] Numbering on the map: 1. Bucket body; 2. Lower scraper plate; 3. Upper pusher plate; 4. Long shaft; 5. Hydraulic cylinder; 11. Base plate; 12. Bending plate; 13. Side plate; 14. Hydraulic cylinder hinge plate; 15. Boom hinge plate; 16. Middle hinge plate; 17. Crossbeam; 21. Lower connecting hole; 31. Hinge hole two; 32. Upper connecting hole; 33. Cylinder head hinge hole; 101. Hinge hole one; 102. Cylinder bottom hinge hole. Detailed Implementation

[0018] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0019] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. Example 1

[0021] Combination Figure 1 This embodiment provides a bucket, which includes a bucket body 1, an upper pusher plate 3, a hydraulic cylinder 5, and a lower scraper plate 2.

[0022] Combination Figure 2 The bucket body 1 includes a bottom plate 11, a curved plate 12, and a side plate 13. The side plate 13 is located on both sides of the bottom plate 11 and the curved plate 12 to form a material loading cavity. The bottom plate 11, the curved plate 12, and the side plate 13 are welded together. The curved plate 12 is connected with a hinge plate, which, in combination with... Figure 3 The hinge plate is provided with a hinge hole 101 and a cylinder bottom hinge hole 102; combined with Figure 4The upper pusher plate 3 has a hinge hole 2 31 and a cylinder head hinge hole 33 on its back side; the upper part of the upper pusher plate 3 is hinged to the hinge plate through the hinge hole 2 31 and the hinge hole 1 101; the mounting end and the telescopic end of the hydraulic cylinder 5 are respectively hinged to the cylinder bottom hinge hole 102 and the cylinder head hinge hole 33; the lower scraper plate 2 is movably connected to the lower end of the upper pusher plate 3; when the hydraulic cylinder 5 extends, it can drive the upper pusher plate 3 to rotate relative to the hinge plate around the hinge hole 2 31, and the upper pusher plate 3 drives the lower scraper plate 2 to slide along the bottom plate 11 to push out the material in the loading chamber.

[0023] The hinge hole 101 and hinge hole 31, the mounting end of the hydraulic cylinder 5 and the bottom hinge hole 102, and the telescopic end of the hydraulic cylinder 5 and the head hinge hole 33 are all connected by pins.

[0024] In this embodiment, a loading cavity is formed by a base plate 11, a curved plate 12, and a side plate 13. A movable upper push plate 3 and a lower scraper plate 2 are then installed within the loading cavity. The upper push plate 3 can be driven to rotate relative to the hinge plate around the hinge hole 31, thereby causing the lower scraper plate 2 to slide along the base plate 11 to push the material out of the loading cavity. The bucket of this embodiment can automatically clean the material adhering to the bottom of the bucket and can unload in a horizontal position without tilting the bucket body 1. Compared to unloading by tilting the bucket body 1, this embodiment can achieve horizontal unloading without tilting the bucket body 1, thus effectively increasing the unloading height of the loader without lengthening the loader boom, and ensuring the overall stability of the machine without reducing the overall load capacity. This embodiment effectively solves the contradiction between unloading height and load-bearing stability by setting a movable upper pusher plate 3 and a lower scraper plate 2 in the loading cavity of the bucket body 1. In this embodiment, the lower scraper plate 2 can clean the material stuck to the bottom of the bucket while pushing the material in coordination with the upper pusher plate 3, thereby facilitating cleaning and preventing mixing or contamination.

[0025] Specifically, a crossbeam 17 is provided between the side plates 13 on both sides, and the crossbeam 17 is connected to the hinge plate. The hinge plate includes a middle hinge plate 16, a cylinder hinge plate 14, and a boom hinge plate 15; the middle hinge plate 16 is connected to the middle of the curved plate 12; the cylinder hinge plate 14 is located on the curved plate 12 near the side plate 13; the boom hinge plate 15 is located between the middle hinge plate 16 and the cylinder hinge plate 14; the front ends of the middle hinge plate 16, the cylinder hinge plate 14, the boom hinge plate 15, and the side plate 13 are all provided with a hinge hole 101; the rear end of the boom hinge plate 15 is provided with a hinge hole 3 for hinged with the boom; the cylinder hinge plate 14 and the side plate 13 are provided with cylinder bottom hinge holes 102. The crossbeam 17 is welded to the side plate 13, the cylinder hinge plate 14, the boom hinge plate 15, and the middle hinge plate 16 respectively; in addition, the cylinder hinge plate 14, the boom hinge plate 15, and the middle hinge plate 16 are also welded to the bending plate 12.

[0026] Furthermore, the second hinge hole 31 is located on the upper back of the upper push plate 3, and the cylinder head hinge hole 33 is located on both sides of the lower back of the upper push plate 3. Multiple second hinge holes 31 are provided and arranged at intervals along the length of the upper push plate. In actual operation, pins are inserted through each of the multiple second hinge holes 31 to connect to the first hinge hole 101, thereby achieving stable installation of the upper push plate 3.

[0027] Combination Figure 4 and Figure 5 The upper pusher plate 3 has an upper connecting hole 32 at its bottom end, and the lower scraper plate 2 has a lower connecting hole 21 at its top end. The upper connecting hole 32 of the upper pusher plate 3 and the lower connecting hole 21 of the lower scraper plate 2 are connected by a long shaft 4. The lower scraper plate 2 can move relative to the upper pusher plate 3 when it moves with the upper pusher plate 3. Multiple upper connecting holes 32 are provided and spaced apart at the bottom end of the upper pusher plate 3, and multiple lower connecting holes 21 are provided and spaced apart at the top end of the lower scraper plate 2. When the upper pusher plate 3 and the lower scraper plate 2 are connected, the upper connecting holes 32 and the lower connecting holes 21 remain coaxial to pass through the long shaft 4. The long shaft 4 can limit the connection between the upper pusher plate 3 and the lower scraper plate 2, but the lower scraper plate 2 still has the freedom to rotate around the upper pusher plate 3, thereby allowing the lower scraper plate 2 to slide along the bottom plate 11 to achieve unloading.

[0028] Combination Figure 6 When the hydraulic cylinder 5 retracts to its limit position, the lower scraper 2 bends relative to the upper pusher 3 and abuts against the bottom plate 11. The upper pusher 3 and the lower scraper 2 retract to the inside of the loading chamber. At this time, the upper pusher 3, the lower scraper 2 and the bottom plate 11 are approximately U-shaped, and the bucket can be loaded with materials. When the hydraulic cylinder 5 extends to its limit position, the lower scraper 2 is located at the outer edge of the bottom plate 11 and the surface of the lower scraper 2 is flush with the upper pusher 3. The materials in the bucket can be completely pushed out and slide down. In addition, the lower scraper 2 can also scrape off the materials adhering to the bottom of the bucket to achieve automatic cleaning while unloading. Example 2

[0029] This embodiment provides an engineering machine, which includes the bucket described in Embodiment 1.

[0030] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A bucket, characterized in that, include: The bucket body (1) includes a bottom plate (11), a curved plate (12) and a side plate (13). The side plate (13) is located on both sides of the bottom plate (11) and the curved plate (12) to form a material loading cavity. The curved plate (12) is connected to a hinge plate, and the hinge plate is provided with a hinge hole (101) and a cylinder bottom hinge hole (102). The upper push plate (3) has a hinge hole 2 (31) and a cylinder head hinge hole (33) on its back side; the upper part of the upper push plate (3) is hinged to the hinge plate through the hinge hole 2 (31) and the hinge hole 1 (101); The cylinder (5) has its mounting end and telescopic end hinged to the cylinder bottom hinge hole (102) and cylinder head hinge hole (33), respectively. The lower scraper (2) is movably connected to the lower end of the upper pusher plate (3); When the cylinder (5) extends, it can drive the upper push plate (3) to rotate relative to the hinge plate around the hinge hole (31). The upper push plate (3) drives the lower scraper (2) to slide along the bottom plate (11) to push out the material in the loading chamber.

2. The bucket according to claim 1, characterized in that, Also includes: A crossbeam (17) is connected between the side plates (13) on both sides and is connected to the hinge plate.

3. The bucket according to claim 1, characterized in that, The hinge plate includes: The central hinge plate (16) is connected to the middle of the curved plate (12); The hydraulic cylinder hinge plate (14) is located on the curved plate (12) near the side plate (13); The boom hinge plate (15) is located between the middle hinge plate (16) and the cylinder hinge plate (14); The front ends of the middle hinge plate (16), the cylinder hinge plate (14), the boom hinge plate (15), and the side plate (13) are all provided with hinge holes (101). Both the cylinder hinge plate (14) and the side plate (13) are provided with cylinder bottom hinge holes (102).

4. The bucket according to claim 1, characterized in that, The second hinge hole (31) is located on the upper back of the upper push plate (3), and the cylinder head hinge hole (33) is located on both sides of the lower back of the upper push plate (3).

5. The bucket according to claim 1, characterized in that, The hinge hole 2 (31) has multiple holes and is arranged at intervals along the length direction of the upper push plate (3).

6. The bucket according to claim 1, characterized in that, The bottom end of the upper pusher plate (3) is provided with an upper connecting hole (32), and the top end of the lower scraper plate (2) is provided with a lower connecting hole (21). The upper connecting hole (32) of the upper pusher plate (3) and the lower connecting hole (21) of the lower scraper plate (2) are connected by a long shaft (4). The lower scraper plate (2) can move relative to the upper pusher plate (3) when it moves with the upper pusher plate (3). When the oil cylinder (5) retracts to its limit position, the lower scraper (2) bends relative to the upper pusher (3) and abuts against the bottom plate (11), and the upper pusher (3) and the lower scraper (2) retract to the inside of the loading chamber. When the oil cylinder (5) extends to its limit position, the lower scraper (2) is located at the outer edge of the bottom plate (11) and the surface of the lower scraper (2) is flush with the upper pusher (3).

7. The bucket according to claim 6, characterized in that, The upper connecting hole (32) is provided in multiple locations and is arranged at intervals at the bottom end of the upper pusher plate (3); the lower connecting hole (21) is provided in multiple locations and is arranged at intervals at the top end of the lower scraper plate (2). When the upper pusher plate (3) and the lower scraper plate (2) are connected, the upper connecting hole (32) and the lower connecting hole (21) remain coaxial to allow the long shaft (4) to pass through.

8. The bucket according to claim 1, characterized in that, The hinge hole one (101) and hinge hole two (31), the mounting end of the cylinder (5) and the cylinder bottom hinge hole (102), and the telescopic end of the cylinder (5) and the cylinder head hinge hole (33) are all connected by pins.

9. The bucket according to claim 1, characterized in that, The base plate (11), the curved plate (12) and the side plate (13) are fixed by welding; the curved plate (12) and the hinge plate are fixed by welding.

10. An engineering machinery, characterized in that, Includes the bucket as described in any one of claims 1-9.