Side-dumping device for construction machinery and construction machinery comprising the same

Abstract

The present disclosure relates to a side-dumping device for construction machinery, comprising a side-dumping bucket (1) having a first hinge seat (11) disposed at a left end thereof and a second hinge seat (12) disposed at a right end thereof; a support bracket (2) having a first hinge mechanism (4) disposed on a left side thereof and a second hinge mechanism (5) disposed on a right side thereof; and a side-dumping hydraulic cylinder (3) mounted between the side-dumping bucket (1) and the support bracket (2); wherein the side-dumping bucket is hingedly connected to the support bracket in an automatically detachable manner through the cooperation of the first hinge seat (11) with the first hinge mechanism (4), and the cooperation of the second hinge seat (12) with the second hinge mechanism (5), such that the dumping direction of the side-dumping bucket is switchable rapidly. The present disclosure also relates to a construction machinery comprising said side-dumping device.

Description

[0001] SIDE-DUMPING DEVICE FOR CONSTRUCTION MACHINERY AND

[0002] CONSTRUCTION MACHINERY COMPRISING THE SAME

[0003] Technical Field

[0004] The present disclosure relates to the field of construction machinery, and more particularly to a side-dumping device for construction machinery capable of rapidly switching the dumping direction, as well as construction machinery comprising such a side-dumping device.

[0005] Background

[0006] A loader is a type of earthmoving construction machinery that is widely applied in construction projects such as highways, railways, buildings, hydropower facilities, ports, and mines. The loader is configured to shovel bulk materials including soil, sand, lime, and coal by means of a bucket, and is further adapted to perform light excavation operations involving ore, hard soil, and the like. The bucket of the loader is mounted to a front frame of the loader via a boom, a rocker arm, a connecting rod, and other associated mechanisms. The boom is operable to raise and lower the bucket through actuation of a boom cylinder, and the bucket is operable to tilt via actuation of a bucket cylinder.

[0007] Side-dumping loaders are primarily used for construction operations in confined spaces such as tunnels and underground worksites. Most commercially available side-dumping devices are capable of tilting in only one direction, or require the loader to be stopped for manual adjustment of the dumping direction. However, during operations in tunnels or underground environments, vehicles requiring loading may be present on both sides of the loader. Therefore, there is a need for a side-dumping loader capable of rapidly switching the dumping direction. Summary of the Invention

[0008] To overcome at least one of the above-mentioned problems, the present disclosure provides a side-dumping device, for use with construction machinery such as a loader, that is capable of rapidly switching the dumping direction.

[0009] Accordingly, the present disclosure provides a side-dumping device for construction machinery, which comprises a side-dumping bucket, a support bracket, and a side-dumping cylinder mounted between the side-dumping bucket and the support bracket, and the side-dumping bucket includes a first hinge seat disposed at a left end thereof and a second hinge seat disposed at a right end thereof; the support bracket includes a first hinge mechanism disposed on a left side thereof and a second hinge mechanism disposed on a right side thereof; wherein the side-dumping bucket is hingedly connected to the support bracket in an automatically detachable manner through the cooperation of the first hinge seat with the first hinge mechanism, and the cooperation of the second hinge seat with the second hinge mechanism, such that the dumping direction of the side-dumping bucket is switchable rapidly, i.e. thereby enabling rapid switching of the dumping direction of the side-dumping bucket.

[0010] As for the side-dumping device according to the present disclosure, since both ends of the side-dumping bucket may be connected to the support bracket in an automatically detachable manner, the dumping direction can be switched rapidly without stopping the machine. In other words, due to the detachable hinge configuration, the dumping direction can be switched in a short amount of time, without tools. In particular, the dumping direction of the sidedumping bucket is selectively configurable between a left dumping position and a right dumping position.

[0011] In a preferred aspect of the present disclosure, the first hinge mechanism may include a left hinge seat, a first hinge pin, and a first drive mechanism. The first drive mechanism is configured to drive the first hinge pin to move between a first position and a second position. In the first position, the first hinge pin is moved into the left hinge seat to maintain the first hinge seat connected to the left hinge seat. In the second position, the first hinge pin is partially withdrawn from the left hinge seat, allowing the first hinge seat to move away from the left hinge seat. Similarly, the second hinge mechanism may include a right hinge seat, a second hinge pin, and a second drive mechanism, wherein the second drive mechanism is configured to drive the second hinge pin to move between a first position and a second position. In the first position, the second hinge pin is moved into the right hinge seat to maintain the second hinge seat connected to the right hinge seat. In the second position, the second hinge pin is partially withdrawn from the right hinge seat, allowing the second hinge seat to move away from the right hinge seat.

[0012] In a preferred aspect of the present disclosure, both the first and second drive mechanisms are hydraulic cylinders. One end of the hydraulic cylinder (e.g., the cylinder body) is connected to the body of the support bracket, and the other end (e.g., the piston rod) is connected to the respective hinge pin. In this configuration, automatic insertion and removal of the hinge pins can be realized using short-stroke hydraulic cylinders, thereby enabling automatic switching of the dumping direction of the side-dumping bucket.

[0013] In an aspect of the present disclosure, the support bracket includes a plurality of cross beams, and a pair of left vertical plates (i.e., a first and second left vertical plates), a pair of intermediate vertical plates (i.e., a first and second intermediate vertical plates), and a pair of right vertical plates (i.e., a first and second right vertical plates), all of which are fixedly connected to the plurality of cross beams, for example by welding. The first and second left vertical plates may be connected to a first boom of the construction machinery by a left pin, while the first and second right vertical plates may be connected to a second boom by a right pin. The first and second intermediate vertical plates may be connected to a rocker arm by an intermediate pin.

[0014] In an aspect, the left hinge seat comprises a left upper lug plate and a left lower lug plate, which are fixedly connected (e.g., welded) to the outer side of the first left vertical plate, wherein the left upper lug plate and the left lower lug plate are spaced apart from each other in parallel and are perpendicular to the first left vertical plate, the left upper lug plate has a left upper hole, and the left lower lug plate has a left lower hole aligned with the left upper hole to receive the first hinge pin. The right hinge seat comprises an upper right lug plate and a lower right lug plate, which are fixedly connected (e.g., welded) to an outer side of the first right vertical plate, the upper right lug plate and the lower right lug plate are spaced apart from each other in parallel and perpendicular to the first right vertical plate, the upper right lug plate has an upper right hole, and the lower right lug plate has a lower right hole aligned with the upper right hole to receive the second hinge pin.

[0015] According to a preferred aspect of the present disclosure, the first hinge seat comprises a first upper lug plate and a first lower lug plate, which are fixedly connected (e.g., welded) to the side-dumping bucket, and the first upper lug plate and the first lower lug plate are spaced apart to each other in parallel, and the first upper lug plate has a first upper hole, the first lower lug plate has a first lower hole aligned with the first upper hole; when the first hinge seat is connected to the left hinge seat by means of the first hinge pin, the first upper lug plate is inserted between the left upper lug plate and the left lower lug plate, and the first lower lug plate is disposed below the left lower lug plate.

[0016] Similarly, the second hinge seat comprises a second upper lug plate and a second lower lug plate, which are fixedly connected to the sidedumping bucket, wherein the second upper lug plate and the second lower lug plate are spaced apart to each other in parallel, and the second upper lug plate has a second upper hole, the second lower lug plate has a second lower hole aligned with the second upper hole. When the second hinge seat is connected to the right hinge seat by means of the second hinge pin, the second upper lug plate is inserted between the right upper lug plate and the right lower lug plate, and the second lower lug plate is disposed below the right lower lug plate.

[0017] In an aspect, the first and second hinge seats on the side-dumping bucket, as well as the left and right hinge seats on the support bracket are all configured in a double-lug-plate form, which facilitates a more stable and secure connection. However, it should be understood that the first hinge seat and the second hinge seat may alternatively be configured in other suitable forms, such as a single-lug-plate form, which are likewise within the scope of the present application.

[0018] In a preferred aspect of the present disclosure, a first cylinder mounting seat is provided at a central position on a top side of the side-dumping bucket, and a second cylinder mounting seat is provided at a central position on a top side of the support bracket. One end of the side-dumping hydraulic cylinder (e.g., the cylinder body) is connected to the first cylinder mounting seat, and the other end (e.g., the piston rod) is connected to the second cylinder mounting seat. It is advantageous to arrange the side-dumping hydraulic cylinder at a central position on the support bracket and the dumping bucket, as this facilitates bidirectional side dumping.

[0019] In another aspect of the present disclosure, advantageously, first buffer pads are respectively provided at locations where the first and second left vertical plates, and the first and second right vertical plates, are to contact the side-dumping bucket; and second buffer pads are provided at corresponding locations on the side-dumping bucket. By providing such buffer pads, effective shock absorption and cushioning can be achieved, thereby extending the service life of the side-dumping device.

[0020] In a preferred aspect of the present disclosure, the first upper lug plate, the first lower lug plate, the second upper lug plate, and the second lower lug plate have the same shape and each has an arcuate convex portion. Advantageously, a first positioning member is fixedly connected (e.g., welded) both between the left upper lug plate and the left lower lug plate, and below (at lower side of) the left lower lug plate respectively; and a second positioning member is fixedly connected (e.g., welded) both between the right upper lug plate and the right lower lug plate, and below the right lower lug plate. Moreover, the first positioning member and second positioning member each has an arcuate concave portion, and the inner diameter of the arcuate concave portion is equal to the outer diameter of the arcuate convex portion. In this way, when the side-dumping bucket is to be closed with the support bracket, that is, when the first hinge seat is to be connected to the left hinge seat, or the second hinge seat is to be connected to the right hinge seat, the first positioning member is capable of aligning and positioning the first upper lug plate and the first lower lug plate, the second positioning member is capable of aligning and positioning the second upper lug plate and the second lower lug plate, thereby facilitating the insertion of the first hinge pin and the second hinge pin, and ensuring the accuracy of automatic direction switching.

[0021] According to a preferred aspect of the present disclosure, a first stop plate is disposed at the left hinge seat and a second stop plate is disposed at the right hinge seat to limit the opening angle between the side-dumping bucket and the support bracket, thereby protecting the side-dumping cylinder.

[0022] In yet another preferred aspect of the present disclosure, the sidedumping device further comprises a control device, which is configured to: when dumping to the left side is required, control the first drive mechanism to move the first hinge pin into the first position, and simultaneously control the second drive mechanism to move the second hinge pin into the second position, such that the side dumping bucket pivots to the left about the first hinge pin; and when dumping to the right side is required, control the first drive mechanism to move the first hinge pin into the second position, and simultaneously control the second drive mechanism to move the second hinge pin into the first position, such that the side dumping bucket pivots to the right about the second hinge pin.

[0023] The control device may, for example, be arranged in the cab, such that the operator can switch the side-dumping direction simply by operating the control device within the cab to control the extension and retraction of the hydraulic cylinder. This arrangement provides a high degree of automation, reduces the labor intensity of the operator, and improves operational efficiency. The present disclosure also provides a construction machinery comprising a first boom, a second boom, a rocker arm, and the aforementioned side-dumping device.

[0024] The side-dumping device for construction machinery according to the present disclosure offers at least the following advantageous effects: it enables rapid switching of the dumping direction without requiring the machine to stop; the operator can conveniently switch the dumping direction by simply pressing a switch inside the cab, thereby controlling the extension and retraction of the hydraulic cylinder. This results in a high degree of automation, reduced operator labor intensity, and improved operational efficiency. Additionally, the provision of buffer pads and positioning members, such as alignment positioning members, ensures high accuracy during automatic direction switching.

[0025] Brief Description of the Drawings

[0026] The features and advantages of the present disclosure will be clearly understood from the following detailed description with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not necessarily drawn to scale. Accordingly, they should not be construed as limiting the scope of the present disclosure, in which,

[0027] FIG. 1 illustrates a perspective view of a side-dumping device for a loader according to one embodiment of the present disclosure;

[0028] FIG. 2 illustrates a view of the right end of a side-dumping bucket of the side-dumping device moving away from a support bracket, according to the present disclosure;

[0029] FIG. 3 illustrates a perspective view of the side-dumping bucket of the side-dumping device, according to the present disclosure;

[0030] FIG. 4 illustrates a perspective view of the support bracket of the side-dumping device, according to the present disclosure;

[0031] FIG. 5 illustrates another perspective view of the support bracket of the side-dumping device, according to the present disclosure; and FIG. 6 illustrates yet another perspective view of the support bracket of the side-dumping device, according to the present disclosure.

[0032] Detailed Description

[0033] The present disclosure will now be described in detail with reference being made to accompanying figures. In the following description, numerous specific details are set forth to facilitate a thorough understanding and implementation of the present disclosure by those skilled in the art. However, it should be understood that the present disclosure is not limited to the specific embodiments described. Instead, the present disclosure may be embodied in any combination of features and elements described below, regardless of whether they relate to different embodiments. Accordingly, the following aspects, features, embodiments, and advantages are provided for illustrative purposes only and are not to be construed as elements or limitations of the claims unless explicitly recited therein.

[0034] In the following description, terms such as "first", "second", and the like are used hereinafter to describe the elements of the present application, and these terms are merely for distinguishing the elements and are not intended to limit their nature, order, or number. The terms "including" and "having" are used herein to indicate an open-ended inclusion, meaning that additional elements or components may be present beyond those specifically listed. The terms "left" and "right" refer to directions as viewed by an observer facing the page.

[0035] Figure 1 illustrates a perspective view of a side-dumping device 100 for a loader, according to an embodiment of the present disclosure. As shown, the side-dumping device 100 includes a side-dumping bucket 1, a support bracket 2 connected with the side-dumping bucket, and a side-dumping cylinder 3 mounted between the side-dumping bucket and the support bracket.

[0036] Referring to Figure 3, the side dumping bucket 1 includes a first hinge seat 11 and a second hinge seat 12, both of which are disposed on the side of the bucket facing the support bracket 2. The first hinge seat 11 is located at the left end of the side dumping bucket, and the second hinge seat 12 is located at the right end thereof. In a preferred embodiment, the first hinge seat 11 is configured as a double ear plate structure and comprises a first upper lug plate 111 and a first lower lug plate 112, both of which are fixedly connected (e.g., welded) to the side dumping bucket 1. The first upper lug plate and the first lower lug plate are parallel to each other and spaced apart by a distance. The first upper lug plate 111 has a first upper hole I l la, and the first lower lug plate 112 has a first lower hole 112a aligned with the first upper hole. Preferably, the first lower hole and the second lower hole are circular holes of equal diameter. In this embodiment, the second hinge seat 12 is also configured as a double-ear-plate structure. Specifically, the second hinge seat 12 comprises a second upper lug plate 121 and a second lower lug plate 122, both of which are fixedly connected (e.g., welded) to the side-dumping bucket 1. The second upper and lower lug plates are parallel to each other and spaced apart by a distance. The second upper lug plate 121 has a second upper hole 121a, and the second lower lug plate 122 has a second lower hole 122a aligned with the second upper hole. Preferably, the first lower hole 112a and the second lower hole 122a are circular holes of equal diameter.

[0037] Referring to Figures 4 to 6, an embodiment of the support bracket 2 for the side dumping device 100 according to the present disclosure is shown. In this embodiment, the support bracket 2 is preferably formed by welding together three cross beams 2' and three pairs of vertical plates. The three pairs of vertical plates include a first left vertical plate 21 and a second left vertical plate 21'; a first intermediate vertical plate 22 and a second intermediate vertical plate 22'; and a first right vertical plate 23 and a second right vertical plate 23'. The first and second left vertical plates define a left connecting seat 211, the left end of the support bracket 2 may be connected to a first boom of the loader through the cooperation of the left connecting seat 211 with a left pin (not shown). The first and second right vertical plates define a right connecting seat 231, the right end of the support bracket 2 may be connected to a second boom through the cooperation of the right connecting seat 231 with the right pin (not shown). The first and second intermediate vertical plates define an intermediate connecting seat 221, an intermediate portion of the support bracket 2 may be connected to a rocker arm of the loader through the cooperation of intermediate connecting seat 221 with an intermediate pin (not shown).

[0038] In one embodiment, further referring to Figure 3, a first hydraulic cylinder mounting seat 10 is located at a central position on a top side of the sidedumping bucket 1. A second hydraulic cylinder mounting seat 20 is located at a central position on a top side of the support bracket 2 (e.g., between a pair of intermediate vertical plates). One end (i.e. the cylinder body) of the side-dumping hydraulic cylinder is connected to the first seat, and the opposite end (i.e. the piston-rod) is connected to second hydraulic cylinder mounting seat 20. Extension and retraction of the piston rod cause the side-dumping bucket 1 to pivot leftward or rightward.

[0039] In this embodiment, the support bracket 2 further comprises a first hinge mechanism 4 and a second hinge mechanism 5, which are fixedly connected, such as by welding, to the outer sides of the first left vertical plate 21 and the first right vertical plate 23, respectively. Referring to Figure 4, preferably, the first hinge mechanism 4 includes a left hinge seat 41, a first hinge pin 42, and a first drive mechanism 43; the second hinge mechanism 5 includes a right hinge seat 51, a second hinge pin 52, and a second drive mechanism 53. In this embodiment, the first hinge mechanism and the second hinge mechanism are identically configured and symmetrical about the center of the support bracket.

[0040] In a preferred embodiment, the first drive mechanism is a first hydraulic cylinder, and the second drive mechanism is a second hydraulic cylinder. The first and second hydraulic cylinders are configured to drive the first hinge pin and the second hinge pin to move between a first position and a second position, respectively. In this embodiment, lifting shafts 21a and 23a and lifting lugs 21b and 23b extend from the top ends of the first left vertical plate 21 and the first right vertical plate 23, respectively. The cylinder body (i.e. barrel end) of the first hydraulic cylinder is connected to the lifting lug 21b via a pin 21c, and the piston-rod (i.e. rod end) is connected to the first hinge pin 42 by means of another pin 21d. The cylinder body (i.e. barrel end) of the second hydraulic cylinder is connected to the lifting lug 23b by a pin 23c, and the piston rod (i.e. rod end) is connected to the second hinge pin 52 by another pin 23d.

[0041] Preferably, the side-dumping device 100 according to the disclosure may include a control device (not shown), which may be communicatively connected to the side-dumping cylinder, the first hydraulic cylinder, and the second hydraulic cylinder. The control device may be arranged inside the cabin and operated by the driver to control the extension and retraction of each hydraulic cylinder. In the first position, the first hydraulic cylinder is fully extended, and the first hinge pin 42 moves into the left hinge seat 41 to maintain the first hinge seat connected to the left hinge seat (see Figures 1 and 5). In the second position, the first hydraulic cylinder is fully retracted, and the first hinge pin 42 partially moves out of the left hinge seat 41 until the first hinge seat 11 moves away from the left hinge seat 41 (see Figure 4), thereby enabling the sidedumping bucket 1 to pivot leftward about the first hinge pin 42 for left-side dumping.

[0042] Similarly, in the first position, the second hydraulic cylinder is fully extended, and the second hinge pin 52 moves into the right hinge seat 51 to maintain the second hinge seat 12 connected to the right hinge seat 51 (see Figures 1 and 4). In the second position, the second hydraulic cylinder is fully retracted, and the second hinge pin 52 partially moves out of the right hinge seat 51 until the second hinge seat 12 moves away from the right hinge seat 51 (see Figures 2 and 5), thereby enabling the side-dumping bucket 1 to pivot rightward about the second hinge pin 52 for right-side dumping.

[0043] In this embodiment, it is advantageous that the respective drive mechanisms are provided for the first and second hinge pins. In particular, the extension and retraction of the hydraulic cylinders can be automatically controlled by the control device, enabling the automatic insertion and removal of the hinge pins, thereby facilitating the automatic engagement and disengagement of the first hinge seat 11 with the first hinge mechanism 4, and of the second hinge seat 12 with the second hinge mechanism 5, thus allowing for the rapid switching of the unloading direction of the side-dumping bucket. Referring to Figure 4 again, the left hinge seat 41 comprises an upper left lug plate 41a and a lower left lug plate 41b, both of which are fixedly connected, for example by welding, to the outer side of the first left vertical plate 21. The upper and lower left lug plates are spaced apart in parallel and oriented perpendicularly to the first left vertical plate 21. The upper lug plate has an upper left hole, and the lower lug plate has a lower left hole aligned with the upper left hole, the upper and lower left holes are used for receiving the first hinge pin 42. Similarly, the right hinge seat 51 comprises an upper right lug plate 51a and a lower right lug plate 51b, both of which are fixedly connected, for example by welding, to the outer side of the first right vertical plate 23. The upper and lower lug plates are spaced apart in parallel and oriented perpendicularly to the first right vertical plate 23. The upper lug plate has an upper right hole, and the lower lug plate has a lower right hole aligned with the upper hole, both of which are used for receiving the second hinge pin 52.

[0044] The left hinge seat 41 and the right hinge seat 51 are configured such that when the first hinge seat 11, which also has a double-lug-plate structure, is connected to the left hinge seat 41 by the first hinge pin 42, the first upper lug plate 111 is inserted between the upper left lug plate 41a and the lower left lug plate 41b, and the first lower lug plate 112 is disposed below the lower left lug plate 41b. The left hinge seat 41 and the right hinge seat 51 are also configured such that when the second hinge seat 12, also having a double-lug-plate structure, is connected to the right hinge seat 51 by the second hinge pin 52, the second upper lug plate 121 is inserted between the upper right lug plate 51a and the lower right lug plate 51b, and the second lower lug plate is disposed below the lower right lug plate 51b. In the present disclosure, the double-lug-plate structure of each hinge seat can achieve a more stable connection.

[0045] In a preferred embodiment, the first upper lug plate 111, the first lower lug plate 112, the second upper lug plate 121, and the second lower lug plate 122 have the same shape and each includes an arcuate convex portion. A first positioning member 7 is fixedly connected (for example by welding) between the left upper lug plate 41a and the left lower lug plate 41b, and on the lower side of the left lower lug plate 41b (see Figure 6), respectively.

[0046] Additionally, a second positioning member 7' (see Figure 5) is fixedly connected (for example by welding) between the upper right lug plate 51a and the lower right lug plate 51b, and below the lower right lug plate 51b, respectively. Both the first positioning member 7 and the second positioning member 7' are provided with an arcuate concave portion, which is, for example, configured as a partial circular ring. The inner diameter of the arcuate concave portion is equal to the outer diameter of the arcuate convex portion. In this way, when the sidedumping bucket 1 and the bracket 2 are closed together, the arcuate recess and the arcuate projection enable centering alignment, thereby facilitating the smooth insertion of the first hinge pin 41 and the second hinge pin 51.

[0047] Furthermore, referring to Figure 2 again, it is advantageous that a first buffer pad 6 is provided at a location where the first right vertical plate 23 and the second right vertical plate 23' are to contact the side-dumping bucket 1, and a second buffer pad 6' is provided at a corresponding location on the sidedumping bucket 1. Moreover, buffer pads of the same type are provided at a location where the first left vertical plate 21 and the second left vertical plate 21' are to contact the side-dumping bucket 1, and at a corresponding location on the side-dumping bucket 1. By providing such buffer pads, effective shock absorption and cushioning can be achieved.

[0048] According to a preferred embodiment of the present disclosure, and with reference again to Figure 5, a first stop plate 8 is provided at the left hinge seat 41, in particular on the side of the left hinge seat facing away from the side-dumping bucket 1. A second stop plate 8' (see Figure 2) is provided at the right hinge seat 51, in particular on the side of the right hinge seat facing away from the side-dumping bucket 1. The stop plates are configured to limit the opening angle between the side-dumping bucket 1 and the support bracket 2, so as to protect the side-dumping hydraulic cylinder. Industrial Applicability

[0049] Although the present disclosure has been described above with reference to a loader as an example, the side-dumping device according to the present disclosure may also be applied to other construction machinery configured for side dumping of materials.

[0050] According to the present disclosure, the side-dumping device 100 for construction machinery is configured to enable the automatic insertion and withdrawal of the first hinge pin 42 into and from the left hinge seat 41, and of the second hinge pin 52 into and from the right hinge seat 51, by providing a first hydraulic cylinder and a second hydraulic cylinder on both sides of the bracket 2, which are communicatively connected to a control device. As a result, the first hinge mechanism 4 can automatically engage with and disengage from the first hinge seat 11 of the side-dumping bucket 1, and the second hinge mechanism 5 can automatically engage with and disengage from the second hinge seat 12 of the side-dumping bucket 1, thereby allowing for automatic rapid switching of the dumping direction without stopping the machine.

[0051] With reference to Figure 2, when the side-dumping bucket 1 is required to dump material to the left, the first hydraulic cylinder is controlled to be in a fully extended state, thereby moving the first hinge pin 42 to the first position in which the left hinge seat 41 is engaged and locked with the first hinge seat 11, and at the same time, the second hydraulic cylinder is controlled to move the second hinge pin 52 into the second position, in which the second hinge pin is partially withdrawn from the right hinge seat 51, allowing the side-dumping bucket 1 to pivot leftward about the first hinge pin 42 under the actuation of the side-dumping hydraulic cylinder 3, thereby achieving left-side dumping. When the second hinge pin 52 is in the second position, it remains partially withdrawn from the right hinge seat 51, with its lower portion not fully disengaged therefrom — particularly not fully withdrawn from the upper right lug plate 51a — thereby providing a guiding function for the next insertion. Similarly, when the side-dumping bucket 1 is required to dump material to the right, the second hydraulic cylinder is controlled to be in a fully extended state, so as to move the second hinge pin 52 to the first position in which the right hinge seat 51 is engaged and locked with the second hinge seat 12, and at the same time, the first hydraulic cylinder is controlled to move the first hinge pin 42 into the second position, in which the first hinge pin is partially withdrawn from the left hinge seat 41, allowing the side-dumping bucket 1 to pivot rightward about the second hinge pin 52 under the actuation of the sidedumping hydraulic cylinder 3, thereby achieving right-side dumping. When the first hinge pin 42 is in the second position, it remains partially withdrawn from the left hinge seat 41, with its lower portion not fully disengaged therefrom — particularly not fully withdrawn from the upper left lug plate 41a — thereby providing a guiding function for the next insertion.

[0052] Although the embodiments of this disclosure as described herein may be incorporated without departing from the scope of the following claims, it will be apparent to a person skilled in the art that various modifications and variations to the above disclosure may be made. Other embodiments will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure. It is intended that the specification and examples be considered as exemplary only, with a true scope being indicated by the following claims and their equivalents.

Claims

Claims1. A side-dumping device for construction machinery, comprising: a side-dumping bucket (1) having a first hinge seat (11) disposed at a left end thereof and a second hinge seat (12) disposed at a right end thereof; a support bracket (2) having a first hinge mechanism (4) disposed on a left side thereof and a second hinge mechanism (5) disposed on a right side thereof; and a side-dumping hydraulic cylinder (3) mounted between the sidedumping bucket (1) and the support bracket (2); wherein the side-dumping bucket is hingedly connected to the support bracket in an automatically detachable manner through the cooperation of the first hinge seat (11) with the first hinge mechanism (4), and the cooperation of the second hinge seat (12) with the second hinge mechanism (5), such that the dumping direction of the side-dumping bucket is switchable rapidly.

2. The side-dumping device according to claim 1, wherein the first hinge mechanism (4) includes a left hinge seat (41), a first hinge pin (42), and a first drive mechanism (43), wherein the first drive mechanism is configured to drive the first hinge pin (42) to move between a first position, in which the first hinge pin (42) is moved into the left hinge seat to maintain the first hinge seat connected to the left hinge seat, and a second position, in which the first hinge pin is partially withdrawn from the left hinge seat to allow the first hinge seat to move away from the left hinge seat; and wherein the second hinge mechanism (5) includes a right hinge seat (51), a second hinge pin (52), and a second drive mechanism (53), wherein the second drive mechanism is configured to drive the second hinge pin (52) to move between a first position, in which the second hinge pin (52) is moved into the right hinge seat to maintain the second hinge seat connected to the right hinge seat, and a second position, in which the second hinge pin (52) is partiallywithdrawn from the right hinge seat (51) to allow the second hinge seat to move away from the right hinge seat.

3. The side-dumping device according to claim 2, wherein the first drive mechanism (43) and the second drive mechanism (53) are each a hydraulic cylinder, wherein one end of the hydraulic cylinder is connected to a body of the support bracket (2) and the other end thereof is connected to the respective hinge pin.

4. The side-dumping device according to claim 2 or 3, wherein the support bracket (2) comprises a plurality of cross beams (20), a first left vertical plate (21) and a second left vertical plate (2T), a first intermediate vertical plate (22) and a second intermediate vertical plate (22'), and a first right vertical plate (23) and a second right vertical plate (23'), all of which are fixedly connected to the plurality of cross beams, wherein the first left vertical plate and the second left vertical plate are connected to a first boom of the construction machinery, the first right vertical plate and the second right vertical plate are connected to a second boom of the construction machinery, and the first intermediate vertical plate and the second intermediate vertical plate are connected to a rocker of the construction machinery; wherein the left hinge seat (41) comprises a left upper lug plate (41a) and a left lower lug plate (41b) fixedly connected to the outer side of the first left vertical plate (21), the left upper lug plate and the left lower lug plate are spaced apart from each other in parallel and are perpendicular to the first left vertical plate, the left upper lug plate has a left upper hole, and the left lower lug plate has a left lower hole aligned with the left upper hole for receiving the first hinge pin (42); and wherein the right hinge seat (51) comprises an upper right lug plate (51a) and a lower right lug plate (51b) fixedly connected to the outer side of the first right vertical plate (23), the upper right lug plate and the lower right lugplate are spaced apart from each other in parallel and perpendicular to the first right vertical plate, the upper right lug plate has an upper right hole, and the lower right lug plate has a lower right hole aligned with the upper right hole for receiving the second hinge pin (52).

5. The side-dumping device according to claim 4, wherein the first hinge seat (11) comprises a first upper lug plate(111) and a first lower lug plate (112) fixedly connected to the side-dumping bucket, and the first upper lug plate and the first lower lug plate are spaced apart in parallel, and the first upper lug plate has a first upper hole (I l la), the first lower lug plate has a first lower hole (112a) aligned with the first upper hole; when the first hinge seat is connected to the left hinge seat by means of the first hinge pin, the first upper lug plate is inserted between the left upper lug plate and the left lower lug plate, and the first lower lug plate is disposed below the left lower lug plate; and wherein the second hinge seat (12) comprises a second upper lug plate (121) and a second lower lug plate (122) fixedly connected to the sidedumping bucket, wherein the second upper lug plate and the second lower lug plate are spaced apart in parallel, and the second upper lug plate has a second upper hole (121a), the second lower lug plate has a second lower hole (122a) aligned with the second upper hole; when the second hinge seat is connected to the right hinge seat by means of the second hinge pin, the second upper lug plate (121) is inserted between the right upper lug plate (51a) and the right lower lug plate (51b), and the second lower lug plate is disposed below the right lower lug plate.

6. The side-dumping device according to claim 4, wherein a first cylinder mounting seat (10) is provided at a central position on a top side of the side-dumping bucket (1), and a second cylinder mounting seat (20) is provided at a central position on a top side of the support bracket (2), wherein one end of the side-dumping hydraulic cylinder is connectedto the first cylinder mounting seat, and the other end thereof is connected to the second cylinder mounting seat; and wherein a first buffer pad (6) is disposed at a location where the first left vertical plate (21) and the second left vertical plate (21') are configured to contact the side-dumping bucket (1), and at a location where the first right vertical plate (23) and the second right vertical plate (23') are configured to contact the side-dumping bucket (1); and a second buffer pad (6') is disposed at a corresponding location on the side-dumping bucket (1).

7. The side-dumping device according to claim 5, wherein the first upper lug plate (111), the first lower lug plate(112), the second upper lug plate (121), and the second lower lug plate (122) have the same shape and each has an arcuate convex portion; wherein a first positioning member (7) is fixedly connected both between the left upper lug plate (41a) and the left lower lug plate ( 1b), and below the left lower lug plate (41b); and a second positioning member (71) is fixedly connected both between the right upper lug plate (51a) and the right lower lug plate (51b), and disposed below the right lower lug plate (51b); wherein each of the first positioning member and second positioning member each has an arcuate concave portion, and the inner diameter of the arcuate concave portion is equal to the outer diameter of the arcuate convex portion.

8. The side-dumping device according to any one of claims 1 to 3, wherein a first stop plate (8) is disposed at the left hinge seat (41) and a second stop plate (8') is disposed at the right hinge seat (51), wherein the first stop plate and the second stop plate are configured to limit the opening angle between the side-dumping bucket (1) and the support bracket (2) so as to protect the side-dumping hydraulic cylinder (3).

9. The side-dumping device according to claim 2 or 3, further comprising a control device configured to: when dumping to the left side is required, control the first drive mechanism to move the first hinge pin into the first position, and simultaneously control the second drive mechanism to move the second hinge pin into the second position, such that the side dumping bucket pivots to the left about the first hinge pin; when dumping to the right side is required, control the first drive mechanism to move the first hinge pin to the second position, and control the second drive mechanism to move the second hinge pin to the first position, such that the side dumping bucket pivots to the right about the second hinge pin.

10. A construction machinery, comprising a first boom, a second boom, a rocker, and the side-dumping device according to any one of claims 1 to 9.

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