A bucket and a loader

CN224741660UActive Publication Date: 2026-09-11BEIJING SHOUGANG CO LTD
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Patent Information

Application Number
CN202521992882.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-16
Publication Date
2026-09-11
Estimated Expiration
2035-09-16

AI Technical Summary

Technical Problem

[0004]为解决目前钢包运输车车体炉渣清理中炉渣掉落至轨道,导致运输车有脱轨风险的技术问题,本申请提供一种铲斗以及装载机

Benefits of technology

[0017] The bucket provided in this embodiment of the present application includes a body and an extended bucket. The body includes a first bottom plate and two first side plates, which are arranged opposite to each other along the width direction of the bucket. The front end of the first bottom plate along the material-shoveling direction is provided with a plurality of shovel teeth, which are arranged sequentially perpendicular to the material-shoveling direction. The extended bucket includes a second bottom plate and two second side plates, which are arranged opposite to each other along the width direction of the bucket and are both connected to the second bottom plate. The rear end of the second bottom plate along the material-shoveling direction is provided with positioning grooves of the same number as the number of shovel teeth. The positioning grooves correspond one-to-one with the shovel teeth and are located between the two second side plates. The shovel teeth can be operably extended into or out of the corresponding positioning grooves. The two first side plates correspond one-to-one with the two second side plates, and the first side plates are detachably connected to the corresponding second side plates.

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Abstract

The application discloses a bucket and a loader, the bucket comprising: a body comprising a first bottom plate and two first side plates, the two first side plates being oppositely arranged along a bucket width direction, and a front end of the first bottom plate along a material scooping direction being provided with a plurality of bucket teeth, the plurality of bucket teeth being sequentially arranged along the bucket width direction; and an extended bucket located at a front end of the body along the material scooping direction and comprising a second bottom plate and two second side plates, the second bottom plate being attached to the first bottom plate, the two second side plates being oppositely arranged along the bucket width direction and being connected to the second bottom plate, a rear end of the second bottom plate along the material scooping direction being provided with a same number of positioning grooves as the number of the bucket teeth, the positioning grooves corresponding to the bucket teeth one by one and being located between the two second side plates, the bucket teeth being operable to extend into or leave the corresponding positioning grooves, the two first side plates corresponding to the two second side plates one by one, and the first side plate being detachably connected to the corresponding second side plate.
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Description

Technical Field

[0001] This application belongs to the field of bucket technology for loaders, specifically relating to a bucket and a loader. Background Technology

[0002] After the converter smelting is completed, the ladle transport vehicle carries the ladle along the track to the bottom of the converter. The converter tilts, and steel is discharged into the ladle through the tapping port on the converter body. During the tapping process, slag from inside the furnace and flue falls onto the transport vehicle.

[0003] In related technologies, loader-based cleaning of steel slag from transport vehicles is sometimes necessary. However, due to space limitations at the ladle transport vehicle location, loaders with very long bucket travel cannot be used; instead, loaders with shorter travel distances must be selected. During cleaning, one side of the transport vehicle is cleaned first, followed by the other side. However, during this process, slag from the vehicle body may fall onto the transport vehicle's tracks, potentially causing derailment during operation. Summary of the Invention

[0004] To address the technical problem of slag falling onto the tracks during the slag removal process of steel ladle transport vehicles, which poses a risk of derailment, this application provides a bucket and a loader.

[0005] In a first aspect of this application, a bucket is provided, comprising:

[0006] The body includes a first base plate and two first side plates. The two first side plates are arranged opposite to each other along the width direction of the bucket. The front end of the first base plate along the material shoveling direction is provided with a plurality of shovel teeth. The plurality of shovel teeth are arranged sequentially along the width direction of the bucket.

[0007] An extended bucket is located at the front end of the body along the material-shoveling direction and includes a second bottom plate and two second side plates. The second bottom plate is fitted with the first bottom plate. The two second side plates are arranged opposite each other along the width direction of the bucket and are both connected to the second bottom plate. The second bottom plate has positioning grooves at its rear end along the material-shoveling direction, the same number of which are the same as the number of shovel teeth. The positioning grooves correspond one-to-one with the shovel teeth and are located between the two second side plates. The shovel teeth can be operably extended into or out of the corresponding positioning grooves. The two first side plates correspond one-to-one with the two second side plates, and the first side plates and the corresponding second side plates are detachably connected.

[0008] In some embodiments, the cross-section of the positioning groove perpendicular to the groove depth direction is arc-shaped or rectangular; the positioning groove is arranged through the material shoveling direction.

[0009] In some embodiments, the second base plate includes a plate body and a plurality of positioning plates, the plurality of positioning plates being arranged sequentially along the width direction of the bucket, the positioning plates being U-shaped, the two ends of the U-shaped positioning plates being connected to the plate body, and the positioning plates and the plate body forming the positioning groove.

[0010] In some embodiments, the top edge of the second side plate is inclined, and the side of the top edge closer to the body is higher than the side farther from the body.

[0011] In some embodiments, the extended bucket further includes a reinforcing rod, the two ends of which are respectively connected to the top ends of the two second side plates and are close to the body.

[0012] In some embodiments, the rear end of the second side plate extends from the second bottom plate along the material shoveling direction, and the bottom edge of the second side plate near the body is higher than the first bottom plate.

[0013] In some embodiments, the extended bucket further includes a reinforcing plate, and the second bottom plate has mounting portions extending from the two second side plates at both ends along the width direction of the bucket, and each of the two mounting portions is connected to a reinforcing plate, which is connected to the corresponding second side plate.

[0014] In some embodiments, the distance between the two second side plates is greater than the distance between the two first side plates.

[0015] In some embodiments, the extended bucket further includes two connectors, which are respectively connected to two second side plates. Each connector includes two clamping plates with a gap between them for the insertion of the first side plate. Both the clamping plates and the first side plates are provided with through holes for threaded fasteners to pass through.

[0016] In a second aspect of this application, a loader is provided, including the bucket of the first aspect.

[0017] The bucket provided in this embodiment of the present application includes a body and an extended bucket. The body includes a first bottom plate and two first side plates, which are arranged opposite to each other along the width direction of the bucket. The front end of the first bottom plate along the material-shoveling direction is provided with a plurality of shovel teeth, which are arranged sequentially perpendicular to the material-shoveling direction. The extended bucket includes a second bottom plate and two second side plates, which are arranged opposite to each other along the width direction of the bucket and are both connected to the second bottom plate. The rear end of the second bottom plate along the material-shoveling direction is provided with positioning grooves of the same number as the number of shovel teeth. The positioning grooves correspond one-to-one with the shovel teeth and are located between the two second side plates. The shovel teeth can be operably extended into or out of the corresponding positioning grooves. The two first side plates correspond one-to-one with the two second side plates, and the first side plates are detachably connected to the corresponding second side plates.

[0018] The bucket provided in this application is an extended bucket based on the original bucket, which increases the length of the bucket. Therefore, even if the loader's own bucket has a limited travel distance, it can clean the slag on the vehicle body at the front or rear of the transport vehicle, i.e., longitudinal cleaning. During this process, the bucket moves along the shoveling direction, i.e. the extension direction of the track, to shovel the material. The slag that falls off during the shoveling process is distributed at the front and rear of the transport vehicle (generally, there are two tracks for the ladle transport vehicle, which extend along the shoveling direction, and there is a pit between the two tracks), and it is in the pit and does not fall on the track, so that the transport vehicle can travel smoothly on the track. Attached Figure Description

[0019] Figure 1 A schematic diagram of the bucket structure of this application is shown.

[0020] Figure 2 It shows Figure 1 Side view of the bucket.

[0021] Figure 3 It shows Figure 1 A top view of the bucket.

[0022] Figure 4 The diagram shows a schematic representation of the extended bucket from its front end.

[0023] Figure 5 It shows Figure 1 A side view of the main body.

[0024] Figure 6 It shows Figure 5 A magnified view of a portion of the image.

[0025] Figure 7 It shows Figure 1 A top view of the main body.

[0026] Explanation of reference numerals in the attached figures:

[0027] 110-Body body, 111-First base plate, 1111-Scutter teeth, 112-First side plate; 120-Extended bucket, 121-Second base plate, 1211-Plate body, 1212-Positioning plate, 1213-Positioning groove, 122-Second side plate, 123-Reinforcing member, 126-Threaded fastener. Detailed Implementation

[0028] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0029] According to a first aspect of this application, a bucket is provided that can efficiently remove slag from the body of a transport vehicle at the front or rear end of the vehicle's direction of travel.

[0030] This application is described below with reference to the accompanying drawings and specific embodiments:

[0031] Please see Figures 1 to 4 The bucket provided in this embodiment includes a body 110 and an extended bucket 120. Wherein:

[0032] The body 110 includes a first bottom plate 111 and two first side plates 112, which are arranged opposite each other along the width direction of the bucket. Please refer to [link / reference]. Figures 6 to 7 The first base plate 111 has a plurality of shovel teeth 1111 at its front end along the shovel direction, and the plurality of shovel teeth 1111 are arranged sequentially along the direction perpendicular to the shovel direction; the extended bucket 120 includes a second base plate 121 and two second side plates 122, the two second side plates 122 are arranged opposite to each other along the width direction of the bucket and are both connected to the second base plate 121, the second base plate 121 has a number of positioning grooves 1213 at its rear end along the shovel direction that are the same as the number of shovel teeth 1111, the positioning grooves 1213 correspond one-to-one with the shovel teeth 1111 and are located between the two second side plates 122, the shovel teeth 1111 can be operably extended into or out of the corresponding positioning grooves 1213, the two first side plates 112 correspond one-to-one with the two second side plates 122, and the first side plates 112 and the corresponding second side plates 122 are detachably connected.

[0033] The main body 110 is the original bucket. The first bottom plate 111 and two side plates together form the first shoveling chamber. The shovel teeth 1111 are located at the front end of the first bottom plate 111 along the shoveling direction. In this way, when using the bucket to shovel material, the shovel teeth 1111 can be easily inserted into the bottom of the material to be shoveled, improving shoveling efficiency. The width direction of the bucket is perpendicular to the shoveling direction. Multiple shovel teeth 1111 are arranged sequentially along the width direction of the bucket, so that multiple shovel teeth 1111 can be inserted into the bottom of the material to be shoveled simultaneously, resulting in a large shoveling area. The second bottom plate 121 and two side plates of the extended bucket 120 together form a second shoveling chamber. The first bottom plate 111 and the second bottom plate 121 are fitted together, so that the first shoveling chamber and the second shoveling chamber are connected to form a total shoveling chamber. That is, the main body 110 and the extended bucket 120 together form a total shoveling chamber. The second bottom plate 121 has a positioning groove 1213 at the rear end along the shoveling direction. So when the main body 110 and the extended bucket 120 are connected, the shovel teeth 1111 are inserted into the positioning groove 1213 to achieve positioning of the main body 110 and the extended bucket 120. The first side plate 112 and the corresponding second side plate 122 are detachably connected. So when it is necessary to clean the slag from the main body 110 of the transport vehicle, the main body 110 and the extended bucket 120 are connected for slag cleaning. When it is not necessary to clean the vehicle body, but only when there is a large operating space and sufficient travel, the extended bucket 120 can be detached for operation.

[0034] The bucket provided in this application is an extended bucket 120mm on the basis of the original bucket, which increases the length of the bucket. Therefore, even if the loader's own bucket has a limited travel distance, it can clean the slag on the vehicle body at the front or rear of the transport vehicle, that is, longitudinal cleaning. During this process, the bucket moves along the shoveling direction, that is, the extension direction of the track, to shovel the material. The slag that falls off during the shoveling process is distributed at the front and rear of the transport vehicle (generally, there are two tracks for the ladle transport vehicle, which extend along the shoveling direction, and there is a pit between the two tracks), and it is in the pit and does not fall on the track, so that the transport vehicle can travel smoothly on the track.

[0035] For the extended bucket 120, the opening of the positioning groove 1213 faces the body 110. When the extended bucket 120 is installed onto the body 110, the body 110 is moved forward so that the shovel teeth 1111 insert into the corresponding positioning groove 1213, thus completing the positioning of the extended bucket 120 and the body 110. In some embodiments, the cross-section of the positioning groove 1213 perpendicular to the groove depth direction can be arc-shaped, that is, the cross-section of the positioning groove 1213 perpendicular to the shoveling direction is arc-shaped. In other embodiments, the cross-section of the positioning groove 1213 perpendicular to the groove depth direction can also be rectangular.

[0036] In some embodiments, please refer to Figure 4The positioning groove 1213 is provided through the material scraping direction to form a positioning hole. The length of the scraper teeth 1111 varies. For longer scraper teeth 1111, the front end can pass through the positioning hole and be located outside the positioning hole, while the middle part is located inside the positioning hole. Therefore, the positioning groove 1213 is provided through the material scraping direction to be suitable for the body 110 of scraper teeth 1111 of various lengths, thus having greater versatility.

[0037] In some embodiments, please refer to Figure 3 as well as Figure 4 The second base plate 121 includes a plate body 1211 and multiple positioning plates 1212. The positioning plates 1212 are arranged sequentially along the width direction of the bucket. Each positioning plate 1212 is U-shaped, and both ends of the U-shaped positioning plate 1212 are connected to the plate body 1211 along the width direction of the bucket. The positioning plates 1212 and the plate body 1211 together form a positioning groove 1213. The positioning plate 1212 can be formed into a U-shape by stamping deformation, or three plates can be welded together to form a U-shaped positioning plate 1212; this application does not impose any limitations. Welding the U-shaped positioning plate 1212 to the top surface of the plate body 1211 to form the positioning groove 1213 can be achieved simply by connecting multiple positioning plates 1212 to the plate body 1211, simplifying the manufacturing process. In other embodiments, a groove with an opening facing the bottom can be directly stamped on the bottom surface of the second base plate 121. The groove has an opening on the side near the body 110 for the shovel teeth 1111 to extend into, which can also achieve the positioning of the body 110 and the extended bucket 120.

[0038] In some embodiments, please refer to Figure 2 The top edge of the second side plate 122 is inclined, and the side of the top edge closer to the body 110 is higher than the side farther from the body 110. That is, the front end of the top edge along the shoveling direction is low, and the rear end along the shoveling direction is high, which facilitates the insertion of the extended bucket 120 into the slag material. In some other embodiments, the top edge of the second side plate 122 can also be set horizontally, which can also shovel the slag material into the extended bucket 120.

[0039] In some embodiments, please refer to Figure 4 The extended hopper 120 also includes a reinforcing member 123, with both ends of the reinforcing member 123 connected to the tops of the two second side plates 122 and close to the body 110. The reinforcing member improves the strength of the extended hopper 120 and reduces the risk of deformation. The reinforcing member can be a reinforcing rod or a reinforcing plate; this application makes no limitation on this. The reinforcing member's proximity to the body 110 reduces resistance to the slag material, facilitating the slag material to be shoveled into the extended hopper 120.

[0040] In other embodiments, the extended bucket 120 can also be connected to the middle of the second side plate 122 along the material shoveling direction, which can also improve the strength of the extended bucket 120 and reduce the risk of deformation of the extended bucket 120.

[0041] In some embodiments, please refer to Figure 2 The rear end of the second side plate 122 extends from the second bottom plate 121 along the material-shoveling direction, and the bottom edge of the second side plate 122 near the body 110 is higher than the first bottom plate 111. The rear end of the second side plate 122 extends upward relative to the second bottom plate 121 and toward the body 110. This arrangement facilitates the insertion of the shovel teeth 1111 of the body 110 into the positioning groove 1213 and also provides installation space for the connectors connecting the second side plate 122 and the first side plate 112. In other embodiments, the rear end of the second side plate 122 may also be flush with the rear end of the second bottom plate 121, while still achieving the positioning of the body 110 and the extended bucket 120.

[0042] In some embodiments, please refer to Figure 3 The distance between the two second side plates 122 can be greater than the distance between the two first side plates 112. When positioning the body 110 and the extended bucket 120, the two first side plates 112 are located between the two second side plates 122, that is, the front end of the body 110 is located between the two second side plates 122. The rear end of the second side plates 122 provides a limit for the body 110 perpendicular to the shoveling direction, and the top of the positioning groove 1213 provides positioning along the shoveling direction. This achieves the determination of the position between the body 110 and the extended bucket 120, which facilitates the subsequent connection of the second side plates 122 and the first side plates 112. The first side plates 112 and the second side plates 122 are connected by threaded fasteners 126, such as bolts or screws.

[0043] In other embodiments, the distance between the two first side plates 112 may also be greater than the distance between the two second side plates 122, while still achieving the positioning of the body 110 and the extended bucket 120 along the direction perpendicular to the material shoveling.

[0044] In some embodiments, the distance between the two first side plates 112 can be the same as the distance between the two second side plates 122. In this case, the extended bucket 120 may further include two connectors, which are respectively connected to the two second side plates 122. The connectors include two clamping plates with a gap between them for the insertion of the first side plates 112. Both the clamping plates and the first side plates 112 are provided with through holes for threaded fasteners 126 to pass through. By providing the two clamping plates, the first side plates 112 are positioned perpendicular to the shoveling direction.

[0045] In some embodiments, the extended bucket 120 further includes reinforcing plates (not shown in the figure). The second bottom plate 121 has mounting portions extending from two second side plates 122 at both ends along the width direction of the bucket. Each mounting portion is connected to a reinforcing plate, which is connected to the corresponding second side plate 122. The reinforcing plates further enhance the connection strength between the second side plates 122 and the second bottom plate 121. Each mounting portion can connect to multiple reinforcing plates, which are arranged sequentially along the shoveling direction to further improve the connection strength between the second side plates 122 and the second bottom plate 121.

[0046] Based on the same technical concept as the first aspect, the second aspect of this application provides a loader.

[0047] The loader provided in this application includes the bucket of any embodiment of the first aspect.

[0048] The most important working device of a loader is the bucket, which can be used to load materials such as sand, gravel, coal, and slag. The bucket is connected to the boom via a linkage mechanism, enabling the bucket to lift, lower, and tilt. The hydraulic cylinder is the power source that drives the boom's movement; through the extension and retraction of the hydraulic cylinder, the bucket can perform loading and unloading operations.

[0049] The bucket provided in this application has at least the following advantages:

[0050] (1) By designing the extended bucket 120 to be installed at the front end of the loader's bucket, the extended bucket 120 replaces the extension arm of the special cleaning vehicle, realizing the longitudinal cleaning of steel slag above the molten steel transport vehicle in a limited space, avoiding the steel slag from falling to both sides of the running track after cleaning, thus preventing the wheel from derailing.

[0051] (2) When the daily loader is used for loading and unloading materials on site, and it is necessary to clean the restricted parts such as the body of the transport vehicle, the extended bucket 120 can be connected to the original bucket, which can realize the quick assembly and disassembly of the extended bucket on site, and realize the dual use of one machine.

[0052] (3) The loader with the extended bucket 120 is small in size, highly flexible and mobile, and can cope with large pieces of steel slag falling suddenly during the converter smelting process, reducing the probability of abnormal equipment damage.

[0053] (4) By using tooling with extended buckets, planned long-term shutdowns for cleaning operations can be avoided, ensuring the continuity of normal production. By using on-site loaders for cleaning instead of dedicated cleaning vehicles, the cost of periodically applying for dedicated cleaning vehicles can be avoided.

[0054] (5) The extended bucket has a simple structure, is easy to install and disassemble, and has low manufacturing costs; it is highly adaptable to complex on-site working conditions. Solving practical production problems at low cost is of great significance for enterprises to reduce costs and increase efficiency.

[0055] (6) The extended bucket enables the operation range that existing conventional loaders cannot reach, and completes tasks that existing conventional buckets cannot perform. It has low manufacturing cost, simple structure, and is easy to disassemble and install without damaging the original functions of the loader. It can replace manual labor, creating conditions for continuous and stable operation of the production line, and reducing the maintenance cost and failure rate of the main equipment.

[0056] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0057] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 application.

[0058] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0059] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0060] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A bucket, characterized in that include: The body includes a first bottom plate and two first side plates. The two first side plates are arranged opposite to each other along the width direction of the bucket. The first bottom plate is provided with a plurality of shovel teeth at its front end along the material shoveling direction. The plurality of shovel teeth are arranged sequentially along the width direction of the bucket. An extended bucket is located at the front end of the body along the material-shoveling direction and includes a second bottom plate and two second side plates. The second bottom plate is attached to the first bottom plate. The two second side plates are arranged opposite each other along the width direction of the bucket and are both connected to the second bottom plate. The rear end of the second bottom plate along the material-shoveling direction has positioning grooves with the same number of teeth as the teeth. The positioning grooves correspond one-to-one with the teeth and are located between the two second side plates. The teeth can be operably extended into or out of the corresponding positioning grooves. The two first side plates correspond one-to-one with the two second side plates, and the first side plates and the corresponding second side plates are detachably connected.

2. The bucket according to claim 1, characterized in that, The positioning groove has an arc-shaped or rectangular cross-section perpendicular to the groove depth direction; the positioning groove is arranged to run through the material shoveling direction.

3. The bucket according to claim 2, characterized in that, The second base plate includes a plate body and multiple positioning plates. The multiple positioning plates are arranged sequentially along the width direction of the bucket. The positioning plates are U-shaped, and the two ends of the U-shaped positioning plates along the width direction of the bucket are connected to the plate body. The positioning plates and the plate body together form the positioning groove.

4. The bucket according to any one of claims 1-3, characterized in that, The top edge of the second side plate is inclined, and the side of the top edge closer to the body is higher than the side farther away from the body.

5. The bucket according to claim 4, characterized in that, The extended bucket also includes a reinforcing rod, the two ends of which are respectively connected to the top of the two second side plates and close to the main body.

6. The bucket of claim 4, wherein, The rear end of the second side plate extends out of the second bottom plate along the material shoveling direction, and the bottom edge of the second side plate near the body is higher than the first bottom plate.

7. The bucket of any one of claims 1-3, wherein, The extended bucket also includes a reinforcing plate. The second bottom plate has mounting portions extending from the two second side plates at both ends along the width direction of the bucket. Each mounting portion is connected to a reinforcing plate, and the reinforcing plate is connected to the corresponding second side plate.

8. The bucket according to any one of claims 1-3, characterized in that, The distance between the two second side plates is greater than the distance between the two first side plates.

9. The bucket according to any one of claims 1-3, characterized in that, The extended bucket also includes two connectors, which are respectively connected to the two second side plates. Each connector includes two clamping plates, and there is a gap between the two clamping plates for the first side plate to be inserted. Both the clamping plates and the first side plates are provided with through holes for threaded fasteners to pass through.

10. A loader characterized by The bucket includes any one of claims 1-9.