Loader bucket quick-changing structure and loader

Abstract

The utility model provides a loader bucket quick-change structure and a loader, and belongs to the technical field of engineering machinery, the loader bucket quick-change structure comprises a mounting seat, a movable cover plate and a pin shaft, the mounting seat is fixed on the back side of a bucket back to a bucket container; a first half hole is formed in the mounting seat; the movable cover plate is provided with a second half hole enclosed with the first half hole; the movable cover plate is detachably fixed on the mounting seat through a fastener; the second half hole and the first half hole form a through hole matched with the pin shaft; and the pin shaft is placed on the first half hole and is fastened on the mounting seat through the movable cover plate, and the movable cover plate can be quickly taken down after being detached. According to the loader bucket quick-change structure, when the bucket needs to be replaced, only the movable cover plate needs to be detached, the pin shaft can be easily taken down to be replaced with different buckets, knocking of a heavy hammer is not needed, the pin shaft cannot be damaged, lifting of a quick-change bracket is not needed either, the pin shaft is easy and convenient to detach, time and labor are saved, and the working efficiency is improved. And the bucket replacement convenience is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to engineering machinery technical field, concretely relates to a loader bucket quick change structure and loader. BACKGROUND

[0002] The loader is a kind of engineering machinery equipment widely used in construction, mining, agriculture and other fields, mainly used for shoveling, carrying, pushing material.The bucket is the core component of loader, and its design and function directly affect the operation efficiency and adaptability of loader.

[0003] The loader selects the bucket with different bucket capacity according to different material density, which needs to increase the frequency of replacing the bucket.The installation mode of the existing bucket pin shaft is to knock the pin shaft from the outside of bucket mounting hole until the pin shaft is exposed on the other side.When needing to replace, only a sledgehammer can be used to knock the pin shaft out of the bucket mounting hole.As the bucket and the movable arm have two pin shafts, when one pin shaft is knocked out, the pin shaft on the other side is more difficult to knock out again due to the slight deformation of the bucket and the movable arm, so the replacement process of the pin shaft is time-consuming and laborious, which greatly reduces the convenience of replacing the bucket;And the way of replacing the pin shaft by using the quick change bracket not only increases the purchase cost of the whole machine, but also increases the weight of the movable arm. SUMMARY

[0004] The utility model embodiment provides a kind of loader bucket quick change structure and loader, which can quickly remove the pin shaft from the bucket without relying on special quick change bracket, solving the problem of inconvenient replacement of pin shaft.

[0005] To achieve the above object, the utility model adopts the technical scheme of: providing a kind of loader bucket quick change structure, comprising: mounting seat, movable cover plate and pin shaft, mounting seat is fixed to the back side of the back of bucket away from bucket capacity;The first half hole is provided on the mounting seat;Movable cover plate is provided with the second half hole that is combined with the first half hole;The movable cover plate is detachably fixed on the mounting seat by fastener, and the second half hole and the first half hole form the through hole of the matching pin shaft;Pin shaft is placed on the first half hole, and is fastened on the mounting seat by the movable cover plate, and can be quickly removed after the movable cover plate is disassembled.

[0006] The loader bucket quick change structure has the beneficial effects that: the movable cover plate and the mounting seat are arranged in a split mode, the first half hole for placing the pin shaft is arranged on the mounting seat, the movable cover plate is fixed on the mounting seat through the fastener, the pin shaft can be positioned on the bucket, when the bucket needs to be replaced, the movable cover plate only needs to be disassembled, the pin shaft can be easily taken down, after the different bucket is replaced, the pin shaft is placed on the mounting seat for replacement, and the movable cover plate is fastened, the pin shaft does not need to be knocked by a heavy hammer, and does not need to be lifted by the quick change bracket, the pin shaft is simple and convenient to disassemble, time and labor are saved, the convenience of the bucket replacement is greatly improved, the structure is simple, and the bucket is easy to manufacture, and the cost and the weight of the bucket do not need to be increased.

[0007] In combination with the first aspect, in an implementable mode, an upper and lower symmetrical shear prevention limiting surface is arranged at the opening of the first half hole, an upper and lower symmetrical positioning stopper is arranged at the opening of the second half hole, the upper side or the lower side of the positioning stopper forms a shear prevention cooperation surface, the shear prevention cooperation surface is in contact with the corresponding shear prevention limiting surface, and the shear prevention limiting surface forms the shear prevention and disconnection limiting of the fastener.

[0008] In combination with the first aspect, in an implementable mode, a rotation prevention limiting plane is arranged in the first half hole, and an anti-rotation cooperation surface is arranged on the shaft end of the pin shaft and is attached to the rotation prevention limiting plane. The rotation prevention limiting plane arranged in the first half hole and the anti-rotation cooperation surface arranged on the pin shaft can prevent the rotation of the pin shaft.

[0009] In combination with the first aspect, in an implementable mode, an axial anti-disconnection surface is formed in the axial direction of the anti-rotation cooperation surface of the pin shaft. The axial anti-disconnection surface can prevent the pin shaft from being axially disconnected from the mounting seat.

[0010] In combination with the first aspect, in an implementable mode, a supporting plane for supporting the movable cover plate is arranged on the mounting seat. The supporting plane can provide a reliable contact surface for the movable cover plate, improve the fastening firmness of the movable cover plate, and the threaded hole for bolt connection is arranged on the supporting plane.

[0011] In combination with the first aspect, in an implementable mode, an arc-shaped ear plate is fixed to the back side of the bucket, the mounting seat is integrally formed on the arc-shaped ear plate, and the thickness of the mounting seat is greater than the thickness of the arc-shaped ear plate. The arc-shaped ear plate is welded to the back side of the bucket and has a certain length in the up-down direction, and the arc-shaped ear plate semi-surrounds the back side of the bucket. The arc-shaped ear plate has a supporting effect on the mounting seat and the pin shaft, and improves the supporting strength of the pin shaft as the hinge point.

[0012] In combination with the first aspect, in an implementable mode, a reinforcing plate is arranged on the lower side of the arc-shaped ear plate close to the mounting seat. The reinforcing plate improves the structural strength of the mounting seat.

[0013] In combination with the first aspect, in an implementable manner, the upper ends of the two arc-shaped lugs are provided with a connecting plate. The upper ends of the two arc-shaped lugs are connected through the connecting plate, and the lower ends are provided with fin-shaped reinforcing plates, thereby improving the integrity of the two arc-shaped lugs and the supporting strength of the two arc-shaped lugs.

[0014] In combination with the first aspect, in an implementable manner, the fastener comprises a bolt and a washer, and the mounting seat is provided with a threaded hole connected with the bolt. Two bolts are symmetrically arranged on the movable cover plate in the up-down direction, thereby improving the fastening firmness of the movable cover plate.

[0015] In the second aspect, the utility model embodiment further provides a loader.

[0016] The loader provided by the utility model embodiment has the quick dismounting and replacing structure, so that the dismounting time of the pin shaft is greatly shortened, the replacing time of the bucket is also shortened, and the working efficiency of the loader is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a perspective view of a loader bucket quick replacing structure provided by an embodiment of the utility model;

[0018] Figure 2 FIG. 2 is a partial enlarged view of the loader bucket quick replacing structure provided by the embodiment of the utility model;

[0019] Figure 3 FIG. 3 is an exploded view of the loader bucket quick replacing structure provided by the embodiment of the utility model;

[0020] Figure 4 FIG. 4 is a perspective view of a mounting seat of the loader bucket quick replacing structure provided by the embodiment of the utility model;

[0021] Figure 5 FIG. 5 is a perspective view of a pin shaft of the loader bucket quick replacing structure provided by the embodiment of the utility model;

[0022] Figure 6 FIG. 6 is a perspective view of a movable cover plate of the loader bucket quick replacing structure provided by the embodiment of the utility model;

[0023] FIG. 7 is a schematic view of the reference signs in the drawings.

[0024] 1, bucket; 2, mounting seat; 201, first half hole; 202, threaded hole; 203, shearing limiting surface; 204, anti-rotation limiting plane; 205, supporting plane; 3, arc-shaped ear plate; 4, connecting plate; 5, reinforcing plate; 6, movable cover plate; 601, second half hole; 602, positioning stop; 603, shearing cooperation surface; 7, pin shaft; 701, anti-rotation cooperation surface; 702, axial anti-falling surface; 8, fastener. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and do not limit the utility model.

[0026] In the claims, description and above drawings of the utility model, unless explicitly defined or limited, the terms "install", "connect", "fix", "set" and the like used in the description of the embodiments of the present application should be understood in a broad sense. For example, the "connection" can be fixed connection, or detachable connection, or integrated setting; it can be mechanical connection, electrical connection or communication connection; it can be direct connection or indirect connection through intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art to which the present application belongs, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0027] In the claims, description and above drawings of the utility model, the terms "include", "have" and their variants are intended to mean "include but not limited to".

[0028] In the claims, description and above drawings of the utility model, unless explicitly limited, the terms "length", "thickness", "axial direction", "radial direction", "circumferential direction" and the like indicating the orientation or positional relationship are based on the orientation and positional relationship shown in the drawings, and are only used for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, so it cannot be understood as limiting the specific protection scope of the present application.

[0029] In combination with the drawings, the term length direction is perpendicular to the axial direction of the pin shaft, the term thickness direction refers to the axial direction of the pin shaft, and the axial direction, radial direction and circumferential direction all refer to the radial direction, circumferential direction and axial direction of the pin shaft.

[0030] Please see Figures 1 to 3The loader bucket quick-change structure comprises a mounting seat 2, a movable cover plate 6 and a pin shaft 7, the mounting seat 2 is fixed to the back side of the bucket 1 away from the bucket capacity, the mounting seat 2 is provided with a first half hole 201, the movable cover plate 6 is provided with a second half hole 601 which is combined with the first half hole 201, the movable cover plate 6 is detachably fixed to the mounting seat 2 through a fastener 8, the second half hole 601 and the first half hole 201 form a through hole for the pin shaft 7, and the pin shaft 7 is placed on the first half hole 201 and fastened to the mounting seat 2 through the movable cover plate 6 and can be quickly removed after the movable cover plate 6 is detached.

[0031] The loader bucket quick-change structure has the beneficial effects that the movable cover plate 6 is detachably arranged on the mounting seat 2, the first half hole 201 for placing the pin shaft 7 is arranged on the mounting seat 2, the movable cover plate 6 is fixed to the mounting seat 2 through the fastener 8, the pin shaft 7 is limited on the bucket 1, when the bucket 1 needs to be replaced, the movable cover plate 6 is only needed to be detached, the pin shaft 7 can be easily removed, after the different bucket 1 is replaced, the pin shaft 7 is placed on the replaced mounting seat 2 and fastened through the movable cover plate 6, the pin shaft 7 is not damaged and the quick-change bracket is not needed to be lifted, the pin shaft 7 is simple and convenient to detach, time and labor are saved, the convenience of replacing the bucket 1 is greatly improved, the structure is simple and easy to manufacture, the cost and the weight of the bucket 1 are not increased.

[0032] In the application, the mounting seat 2 is welded on the arc-shaped lug plate 3 of the bucket 1 or integrally formed with the arc-shaped lug plate 3, and the arc-shaped lug plate 3 is welded on the bucket 1, two pin shafts 7 need to be arranged on the bucket 1, each pin shaft 7 is supported on two mounting seats 2, and two arc-shaped lug plates 3 are correspondingly needed to provide support.

[0033] The caliber of the first half hole 201 on the mounting seat 2 is consistent with the diameter of the pin shaft 7, so that the pin shaft 7 can be placed into the first half hole 201 from the radial direction of the first half hole 201 and can be removed by hand, and the pin shaft 7 does not need to be knocked into the first half hole 201 from the direction of the first half hole 201, so that the pin shaft 7 can be removed by hand after the movable cover plate 6 is detached, and the pin shaft 7 is quickly detached.

[0034] Preferably, the second half hole 601 on the movable cover plate 6 is the same as the first half hole 201, and the diameter of the second half hole 601 can be greater than that of the first half hole 201.

[0035] In some embodiments, referring to Figure 3 , Figure 4 and Figure 6As shown, the opening of the first half hole is provided with an upper and lower symmetrical shear-proof limiting surface 203, and the opening of the second half hole is provided with a symmetrical positioning stop 602, the upper side or the lower side of the positioning stop 602 forms a shear-proof cooperation surface 603, which is in contact with the corresponding shear-proof limiting surface 203. For example, when the movable cover plate 6 is fastened on the mounting seat 2, the upper side of the upper positioning stop 602 is in abutment with the upper shear-proof limiting surface 203, and the lower side of the lower positioning stop 602 is in contact with the lower shear-proof limiting surface 203 to form limiting, preventing the bolt from being sheared by the upper and lower shearing forces, and avoiding the risk of being sheared.

[0036] In the present application, the shear-proof limiting surface 203 is arranged at the opening of the first half hole 201, forms an expanding of the first half hole 201, and facilitates the placement of the pin shaft 7 into the first half hole 201. For the movable cover plate 6 adopting this positioning structure, after the pin shaft 7 is placed into the first half hole 201, the positioning stop 602 of the movable cover plate 6 is clamped at the shear-proof limiting surface 203 by hand, so that the movable cover plate 6 forms preliminary limiting of the pin shaft 7, at this time, even if the hand is loosened, the pin shaft 7 and the movable cover plate 6 will not fall off, then the hand can be freed to hold the bolt, the bolt is preliminarily locked on the threaded hole 202 of the mounting seat 2, and then the bolt is tightened by a wrench, so that the installation operation of the pin shaft 7 is simple and convenient.

[0037] In order to position the movable cover plate 6, a positioning pin can also be arranged on the movable cover plate 6, and a positioning hole for inserting the positioning pin is arranged on the mounting seat 2. When the movable cover plate 6 is installed, the positioning pin is inserted into the positioning hole, so that the movable cover plate 6 is held, and then the hand can be freed to tighten the bolt.

[0038] Other positioning methods can also be used, that is, a positioning protrusion is arranged on the movable cover plate 6, and a positioning groove for inserting the positioning protrusion is arranged on the mounting seat 2.

[0039] In some embodiments, as shown in Figure 3 , Figure 4 and Figure 5 , the first half hole 201 is provided with an anti-rotation limiting plane 204, and the shaft end of the pin shaft 7 is provided with an anti-rotation cooperation surface 701 which is in contact with the anti-rotation limiting plane 204. Through the anti-rotation limiting plane 204 arranged in the first half hole 201 and the anti-rotation cooperation surface 701 arranged on the pin shaft 7, the anti-rotation cooperation surface 701 and the anti-rotation limiting plane 204 form circumferential rotation limiting of the pin shaft 7, which can prevent the pin shaft 7 from rotating around the axis of the pin shaft 7.

[0040] Optionally, the anti-rotation limiting plane 204 can be arranged on the second half hole 601 of the movable cover plate 6.

[0041] Optionally, the first half hole 201 and the second half hole 601 are both rectangular holes, or trapezoidal holes, when both are rectangular holes, the rectangular holes are connected to form a rectangular hole, and both ends of the corresponding pin shaft 7 are rectangular columns, and the pin shaft 7 is prevented from rotating through the planar cooperation.

[0042] In some embodiments, referring to Figure 5 The pin shaft 7 forms an axial anti-extraction surface 702 in the axial direction of the anti-rotation cooperation surface 701, and when the pin shaft is placed in the first half hole 201, the axial anti-extraction surface 702 is in contact with the left side or the right side of the mounting seat 2, thereby preventing the pin shaft 7 from being axially extracted from the mounting seat 2.

[0043] Optionally, a shaft shoulder is arranged at both ends of the pin shaft 7, and when the pin shaft 7 is placed in the first half hole 201, the shaft shoulder is axially abutted against any side of the mounting seat 2, thereby achieving the axial positioning of the pin shaft 7; or a shaft clamping groove is arranged on the pin shaft 7, and a shaft clamping spring is arranged, thereby achieving the axial positioning of the pin shaft 7.

[0044] In some embodiments, referring to Figure 2 , Figure 3 , Figure 4 and Figure 6 , a supporting plane 205 for supporting the movable cover plate 6 is arranged on the mounting seat 2. The supporting plane 205 arranged on the mounting seat 2 can provide a reliable contact surface for the movable cover plate 6, thereby improving the fastening firmness of the movable cover plate 6. The threaded holes 202 for bolt connection or the positioning holes for the positioning pins on the movable cover plate 6 are arranged on the supporting plane 205.

[0045] Referring to Figures 1 to 3 , the loader bucket 1 quick-change structure provided by the embodiment of the utility model further includes an arc-shaped ear plate 3 fixed to the back side of the bucket 1, and the mounting seat 2 is integrally formed on the arc-shaped ear plate 3, and the thickness of the mounting seat 2 is greater than the thickness of the arc-shaped ear plate 3. The arc-shaped ear plate 3 is welded on the back side of the bucket 1, has a certain length in the up-down direction, and semi-surrounds the back side of the bucket 1, thereby improving the structural rigidity of the position of the mounting seat 2, and the arc-shaped ear plate 3 supports the mounting seat 2 and the pin shaft 7, thereby improving the support strength of the pin shaft 7 as the hinge point.

[0046] In the application, the thickness of the mounting seat 2 is greater than twice the thickness of the arc-shaped ear plate 3, thereby ensuring the structural strength of the support position of the pin shaft 7.

[0047] Two parallel arc-shaped ear plates 3 are respectively provided with mounting seats 2, and support both ends of a pin shaft 7.

[0048] In some embodiments, referring to Figures 1 to 3As shown, the arc-shaped ear plates 3 near the lower side of the mounting seat 2 are also provided with reinforcing plates 5 to improve the structural strength of the mounting seat 2. The reinforcing plates 5 extend axially along the pin shaft 7 to form fins.

[0049] In some embodiments, referring to Figure 1 As shown, the upper ends of the two arc-shaped ear plates 3 are provided with connecting plates 4 to improve the support strength of the two arc-shaped ear plates 3. The upper ends of the two arc-shaped ear plates 3 are connected through the connecting plates 4, and the lower ends are provided with fin-shaped reinforcing plates 5 to improve the integrity of the two arc-shaped ear plates 3, thereby improving the support effect on the pin shaft 7.

[0050] In some embodiments, referring to Figures 1 to 4 As shown, the fasteners 8 include bolts and washers, and the mounting seat 2 is provided with threaded holes 202 connected by the bolts. The application is provided with two bolts symmetrically arranged on the same movable cover plate 6 to improve the fastening firmness of the movable cover plate 6. The washers are cooperated with flat washers and elastic washers to improve the fastening firmness of the bolts.

[0051] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described or recorded in a certain embodiment can be referred to the related description of other embodiments.

[0052] Based on the same inventive concept, the application also provides a loader comprising the loader bucket 1 quick-change structure.

[0053] The loader provided by the application embodiment can easily remove the pin shaft 7 by only removing the movable cover plate 6 when the bucket 1 needs to be replaced, and then the pin shaft 7 can be placed in the replaced mounting seat 2 and fastened with the movable cover plate 6, without the need of knocking with a heavy hammer, without damaging the pin shaft 7, and without the need of lifting with a quick-change bracket. The pin shaft 7 is simple and convenient to disassemble, time-saving and labor-saving, greatly improving the convenience of replacing the bucket 1, and the structure is simple and easy to manufacture, without the need of increasing the cost and the weight of the bucket 1.

[0054] Due to the use of the quick disassembly and replacement structure, the disassembly time of the pin shaft 7 is greatly shortened, and the replacement time of the bucket 1 is also shortened, thereby improving the working efficiency of the loader.

[0055] The above only describes the preferred embodiments of the application, and is not used to limit the application. Any modification, equivalent replacement and improvement made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A loader bucket quick change structure characterized by, The utility model relates to a loader bucket quick-change structure, which comprises: a mounting seat (2) fixed to the back side of a bucket (1) away from the bucket capacity; a first half hole (201) is arranged on the mounting seat (2); a movable cover plate (6) is provided with a second half hole (601) enclosing the first half hole (201); the movable cover plate (6) is detachably fixed to the mounting seat (2) through a fastener (8), the second half hole (601) and the first half hole (201) form a through hole of a matched pin shaft (7); and a pin shaft (7) is placed on the first half hole (201) and fastened to the mounting seat (2) through the movable cover plate (6) and can be quickly removed after the movable cover plate (6) is detached.

2. The loader bucket quick change configuration of claim 1, wherein, The opening of the first half hole (201) is provided with an upper and lower symmetrical shear-resistant limiting surface (203), the opening of the second half hole (601) is provided with an upper and lower symmetrical positioning stop (602), the upper side or the lower side of the positioning stop (602) forms a shear-resistant matching surface (603), the shear-resistant matching surface (603) is in contact with the corresponding shear-resistant limiting surface (203), and the shear-resistant limiting surface (203) forms a shear-resistant limiting position of the fastener (8).

3. The loader bucket quick change configuration of claim 1, wherein, The first half hole (201) is provided with an anti-rotation limiting plane (204), and the shaft end of the pin shaft (7) is provided with an anti-rotation matching surface (701) abutting against the anti-rotation limiting plane (204).

4. The loader bucket quick change configuration of claim 3, wherein, The pin shaft (7) forms an axial anti-falling surface (702) in the axial direction of the anti-rotation matching surface (701).

5. The loader bucket quick change configuration of claim 1, wherein, The mounting seat (2) is provided with a supporting plane (205) supporting the movable cover plate (6).

6. The loader bucket quick change configuration of claim 1, wherein, The utility model further comprises an arc-shaped lug plate (3) fixed to the back side of the bucket (1), the mounting seat (2) is integrally formed on the arc-shaped lug plate (3), and the thickness of the mounting seat (2) is greater than the thickness of the arc-shaped lug plate (3).

7. The loader bucket quick change configuration of claim 6, wherein, The lower side of the arc-shaped lug plate (3) close to the mounting seat (2) is further provided with a reinforcing plate (5).

8. The loader bucket quick change configuration of claim 6, wherein, The upper ends of the two arc-shaped lug plates (3) are provided with a connecting plate (4).

9. The loader bucket quick change configuration of claim 1, wherein, The fastener (8) comprises a bolt and a gasket, and the mounting seat (2) is provided with a threaded hole (202) connected with the bolt.

10. A loader characterized by The utility model relates to a loader bucket quick-change structure, which comprises: a mounting seat (2) fixed to the back side of a bucket (1) away from the bucket capacity; a first half hole (201) is arranged on the mounting seat (2); a movable cover plate (6) is provided with a second half hole (601) enclosing the first half hole (201); the movable cover plate (6) is detachably fixed to the mounting seat (2) through a fastener (8), the second half hole (601) and the first half hole (201) form a through hole of a matched pin shaft (7); and a pin shaft (7) is placed on the first half hole (201) and fastened to the mounting seat (2) through the movable cover plate (6) and can be quickly removed after the movable cover plate (6) is detached. The opening of the first half hole (201) is provided with an upper and lower symmetrical shear-resistant limiting surface (203), the opening of the second half hole (601) is provided with an upper and lower symmetrical positioning stop (602), the upper side or the lower side of the positioning stop (602) forms a shear-resistant matching surface (603), the shear-resistant matching surface (603) is in contact with the corresponding shear-resistant limiting surface (203), and the shear-resistant limiting surface (203) forms a shear-resistant limiting position of the fastener (8). The first half hole (201) is provided with an anti-rotation limiting plane (204), and the shaft end of the pin shaft (7) is provided with an anti-rotation matching surface (701) abutting against the anti-rotation limiting plane (204). The pin shaft (7) forms an axial anti-falling surface (702) in the axial direction of the anti-rotation matching surface (701). The mounting seat (2) is provided with a supporting plane (205) supporting the movable cover plate (6). The utility model further comprises an arc-shaped lug plate (3) fixed to the back side of the bucket (1), the mounting seat (2) is integrally formed on the arc-shaped lug plate (3), and the thickness of the mounting seat (2) is greater than the thickness of the arc-shaped lug plate (3). The lower side of the arc-shaped lug plate (3) close to the mounting seat (2) is further provided with a reinforcing plate (5). The upper ends of the two arc-shaped lug plates (3) are provided with a connecting plate (4). The fastener (8) comprises a bolt and a gasket, and the mounting seat (2) is provided with a threaded hole (202) connected with the bolt. The utility model relates to a loader bucket quick-change structure, which comprises:

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