A leak-proof grab bucket

Abstract

This application discloses a leak-proof grab bucket, relating to the technical field of grab buckets. It includes a first bucket body, a second bucket body, and a connecting frame for connecting the first and second bucket bodies to a crane. A pivot is provided between the first and second bucket bodies, allowing them to rotate around the pivot. The first and second bucket bodies are symmetrically arranged. A first baffle is provided on the side of the first bucket body near the connecting frame, and a second baffle is provided on the side of the second bucket body near the connecting frame. When the first and second bucket bodies are closed together, the first and second baffles seal the sides of both buckets near the connecting frame. By providing the first and second baffles on the sides of the first and second bucket bodies near the connecting frame respectively, when the two bucket bodies are closed, the baffles effectively seal the sides of both buckets near the connecting frame, effectively preventing material from falling through the gap at the connection between the top of the grab bucket and the connecting frame, thus reducing material leakage.

Description

Technical Field

[0001] This application relates to the technical field of grabs, and in particular to a leak-proof grab. Background Technology

[0002] A grab bucket is a specialized tool used by cranes to grab dry bulk cargo. Grab buckets are classified into clamshell grab buckets and multi-lobed grab buckets according to their shape. Clamshell grab buckets are suitable for loading various bulk cargoes, minerals, coal, sand and gravel, earthwork, etc. in ports, docks, railway freight yards, mines, etc. They can also be used in earthwork excavation, foundation and ditch excavation, highway construction, railway track laying and other projects.

[0003] The existing anti-leak grab bucket includes a first bucket body and a second bucket body arranged symmetrically and hinged at the top by a hinge shaft. The bottom surface of the outer wall of the first bucket body is provided with a plurality of first anti-leak plates extending toward the second bucket body. The plurality of first anti-leak plates are spaced apart along the hinge shaft axis. The bottom surface of the outer wall of the second bucket body is provided with a plurality of first insertion grooves that cooperate with the plurality of first anti-leak plates. The first insertion grooves penetrate the surface of the second bucket body near the first bucket body. The bottom surface of the outer wall of the second bucket body is provided with a plurality of second anti-leak plates extending toward the first bucket body. The plurality of second anti-leak plates are spaced apart along the hinge axis between the first bucket body and the second bucket body. The bottom surface of the outer wall of the first bucket body is provided with a plurality of second insertion grooves that cooperate with the plurality of second anti-leak plates. The second insertion grooves penetrate the surface of the first bucket body near the second bucket body. The plurality of first anti-leak plates and the plurality of second anti-leak plates are arranged alternately. By setting a first leak-proof plate and a second leak-proof plate on the first hopper and the second hopper respectively, when the first hopper and the second hopper are closing to grab material, the first leak-proof plate is rotatably inserted into the first insertion groove and the second leak-proof plate is rotatably inserted into the second insertion groove to seal the gap between the first hopper and the second hopper when they are closing, thereby reducing the possibility of material falling from the gap between the first hopper and the second hopper and improving the utilization rate of material and the grabbing efficiency.

[0004] Regarding the aforementioned existing technology, when the grab bucket grabs some relatively scattered materials, such as sand and gravel, it often grabs too much material from the material pile. The material piles up into a small mountain inside the closed grab bucket. During the movement of the grab bucket, the piled material is prone to slide from the sides of the grab bucket, resulting in material leakage, which requires manual cleaning. Utility Model Content

[0005] To address the problem that accumulated material can easily slide off the sides of the grab bucket during movement, leading to material leakage, this application aims to provide a leak-proof grab bucket.

[0006] This application provides a leak-proof grab bucket, which adopts the following technical solution:

[0007] A leak-proof grab bucket includes a first bucket body, a second bucket body, and a connecting frame for connecting the first bucket body and the second bucket body to a crane. A pivot is provided between the first bucket body and the second bucket body, and the first bucket body and the second bucket body rotate around the pivot as the center. The first bucket body and the second bucket body are symmetrically arranged. A first baffle is provided on the side of the first bucket body near the connecting frame, and a second baffle is provided on the side of the second bucket body near the connecting frame. When the first bucket body and the second bucket body cooperate to close, the first baffle and the second baffle close the side of the two bucket bodies near the connecting frame.

[0008] By adopting the above technical solution, by setting a first baffle and a second baffle on the side of the first bucket and the second bucket near the connecting frame respectively, when the two buckets are closed, the baffles can effectively seal the side of the two buckets near the connecting frame, effectively preventing materials from falling from the gap at the connection between the top of the grab bucket and the connecting frame, and reducing material leakage.

[0009] Preferably, a positive stop bar is provided on the inner wall of the bottom of the first bucket body away from the connecting frame. The positive stop bar is located at the bottom of the first bucket body near the edge of the second bucket body. The positive stop bar is arranged along the axis of rotation and extends toward the second bucket body. When the first bucket body and the second bucket body are closed together, the positive stop bar is inserted into the second bucket body and fits against the inner wall of the second bucket body.

[0010] By adopting the above technical solution, the positive baffle fills the gap generated when the bottoms of the two buckets are closed, effectively preventing material from leaking from the gaps at the bottom of the grab bucket and improving the sealing performance of the grab bucket bottom.

[0011] Preferably, the inner walls on both sides of the first bucket are also provided with side baffles. The side baffles are located on the side walls of the first bucket near the edge of the second bucket. The side baffles are arranged perpendicular to the pivot and extend toward the second bucket. When the first bucket and the second bucket are closed together, the side baffles are inserted into the second bucket and fit against the inner wall of the second bucket.

[0012] By adopting the above technical solution, the side baffle fills the gap generated when the side plates on both sides of the two buckets are closed, effectively preventing material from leaking from the gaps on the sides of the grab bucket and improving the sealing of the bottom of the grab bucket; the side baffle, together with the front baffle, prevents material from leaking from the gaps in the grab bucket in all directions, further improving the anti-leakage performance of the grab bucket.

[0013] Preferably, both the front baffle and the side baffle can be detachably installed on the bucket body.

[0014] By adopting the above technical solution, both the front baffle and the side baffle can be detachably installed on the bucket body, making it easy to replace and maintain them after they wear out.

[0015] Preferably, the connecting frame is provided with a lifting mechanism for raising and lowering the rotating shaft. The lifting mechanism includes a fixed pulley, a movable pulley, and a driving component for moving the movable pulley. The driving component and the fixed pulley are installed on the side of the connecting frame away from the grab bucket. The movable pulley is fixed to the rotating shaft. The driving component drives the movable pulley to move by winding a rope around the fixed pulley and the movable pulley.

[0016] By adopting the above technical solution, the drive unit activates the drive rope, thereby controlling the position of the movable pulley, causing the movable pulley to rise or fall, and thus controlling the opening and closing of the grab bucket; the fixed pulley and the movable pulley form a force-saving pulley group, which can reduce the force of the drive unit pulling the grab bucket and reduce the load on the drive unit.

[0017] Preferably, both sides of the first and second buckets are fan-shaped, and the bottom plates of the first and second buckets are arc-shaped. The first bucket is provided with a connecting arm, which is located on the side of the first baffle near the connecting frame. The rotating shaft passes through one end of the connecting arm and is rotatably connected to the connecting arm. The end of the connecting arm away from the rotating shaft is fixed to the bottom plate of the first bucket. A fixing rod is fixed to the end of the connecting arm near the rotating shaft. The fixing rod passes through the connecting arm, and both ends of the fixing rod are fixed to the side walls of the grab bucket. The second bucket is also provided with a connecting arm and a fixing rod. The installation method of the connecting arm and fixing rod on the second bucket is the same as that of the connecting arm and fixing plate on the first bucket.

[0018] By adopting the above technical solution, the connecting arm and the fixed rod provide a stable support point for the rotating shaft. The fixed rod is located at the center of the fan-shaped side, which enhances the connection strength between the rotating shaft and the bucket body. At the same time, it increases the distance between the two bucket bodies, allowing more material to be grabbed when grabbing materials.

[0019] Preferably, the first hopper is equipped with a scraping mechanism, which includes a scraper plate and a connecting rod. The scraper plate abuts against the bottom of the first hopper, one end of the connecting rod is fixed to the scraper plate, and the other end of the connecting rod is fixed to a fixing rod. The second hopper is also equipped with a scraping mechanism, and the scraper plate and connecting rod in the second hopper are installed in the same way as those in the first hopper. When the two grab buckets close and grab material, the scraper plates on both grab buckets are located on the side of the first and second hoppers closest to the connecting frame.

[0020] By adopting the above technical solution, the scraping mechanism installed in the first and second buckets has a scraping plate fixed to a fixed rod via a connecting rod. During the process of the grab bucket opening from the closed state to unload material, the scraping plate contacts the bottom of the grab bucket and scrapes off the material attached to the bottom of the grab bucket.

[0021] Preferably, the scraping mechanism further includes side scrapers, which are located on the inner walls of both sides of the first hopper. One end of the side scraper is fixed to the scraper plate, and the other end of the side scraper is fixed to the fixing rod. Side scrapers are also provided on the inner walls of both sides of the second hopper, and the side scrapers in the second hopper are installed in the same way as the side scrapers in the first hopper.

[0022] By adopting the above technical solution, the side scrapers set on both sides of the first and second buckets work together with the bottom scraper to scrape off the material adhering to the inner walls of both sides of the grab bucket, thereby achieving a comprehensive cleaning of the inner walls and bottom of the grab bucket.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By setting a first baffle and a second baffle on the side of the first bucket and the second bucket near the connecting frame respectively, when the two buckets are closed, the baffles can effectively seal the side of the two buckets near the connecting frame, effectively preventing materials from falling from the gap at the connection between the top of the grab bucket and the connecting frame, and reducing material leakage.

[0025] 2. The front and side baffles installed on the inner wall of the first bucket fill the gaps created by the bottom and side plates when the two buckets are closed, effectively preventing material leakage from the bottom or side gaps of the grab bucket. This provides comprehensive protection against material leakage from the gaps in the grab bucket and improves its leak-proof performance. The front and side baffles are detachable and can be easily replaced and maintained after wear.

[0026] 3. By installing scraper plates and side scraper plates inside the grab bucket, the side scraper plates work together with the bottom scraper plates to scrape the inner walls on both sides of the bucket body, achieving comprehensive cleaning of the inner walls and bottom of the bucket body. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0028] Figure 2 This is a structural schematic diagram of the first bucket and connecting frame according to an embodiment of this application.

[0029] Reference numerals: 1. First bucket body; 2. Second bucket body; 3. First baffle; 4. Second baffle; 5. Connecting frame; 6. Lifting mechanism; 61. Fixed pulley; 62. Movable pulley; 63. Driving component; 7. Positive stop bar; 8. Side stop bar; 9. Scraping mechanism; 91. Scraper; 92. Side scraper; 93. Connecting rod; 10. Rotating shaft; 11. Connecting arm; 12. Fixed rod. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 - Appendix Figure 2This application will be described in further detail.

[0031] This application discloses a leak-proof grab bucket.

[0032] refer to Figure 1 and Figure 2 A leak-proof grab bucket includes a first bucket body 1, a second bucket body 2, a first baffle 3, a second baffle 4, a connecting frame 5, a lifting mechanism 6, a front baffle 7, a side baffle 8, and a scraping mechanism 9. The side walls of the first bucket body 1 and the second bucket body 2 are fan-shaped, and the bottom plate is arc-shaped. The first bucket body 1 and the second bucket body 2 are rotatably connected to each other. The first baffle 3 and the second baffle 4 are respectively installed on the first bucket body 1 and the second bucket body 2. The first bucket body 1 and the second bucket body 2 are both rotatably connected to the connecting frame 5. The lifting mechanism 6 is installed on the connecting frame 5 to close the first bucket body 1 and the second bucket body 2. The front baffle 7, the side baffle 8, and the scraping mechanism 9 are all located inside the first bucket body 1 and the second bucket body 2.

[0033] A rotating shaft 10 is provided between the first bucket 1 and the second bucket 2. The rotating shaft 10 is located on one side of the bottom plate of the first bucket 1 and the second bucket 2. The first bucket 1 and the second bucket 2 rotate around the rotating shaft 10. The first bucket 1 and the second bucket 2 are rotatably connected together through the rotating shaft 10, and the first bucket 1 and the second bucket 2 are symmetrically arranged. The connecting frame 5 is rotatably connected to one side of the bottom plate of the first bucket 1 and the second bucket 2 respectively. The lifting mechanism 6 includes a fixed pulley 61, a movable pulley 62 and a driving component 63. The fixed pulley 61 is rotatably mounted on the frame, and the movable pulley 62 is fixed to the rotating shaft 10 and the two pulleys are wound around the pulley by a rope. The movable pulley 62 is connected to the fixed pulley 61; the drive unit 63 is fixed to the side of the connecting frame 5 away from the bucket body by bolts. The drive unit 63 is a motor. The output shaft of the drive unit 63 is wound with a pull rope to control the lifting and lowering of the movable pulley 62, thereby controlling the lifting and lowering of the rotating shaft 10; the fixed pulley 61 and the movable pulley 62 form a force-saving pulley group, which can reduce the force of the drive unit 63 to pull the grab bucket and reduce the load on the drive unit 63; when the drive unit 63 is working, the pull rope pulls the movable pulley 62, and the movable pulley 62 drives the rotating shaft 10 to lift and lower, thereby realizing the opening and closing action of the first bucket body 1 and the second bucket body 2 rotating around the rotating shaft 10.

[0034] Specifically, the first baffle 3 is located on the side of the first bucket 1 near the connecting frame 5, and the first baffle 3 closes the side of the first bucket 1 near the connecting frame 5. The second baffle 4 is installed on the second bucket 2 in the same way as the first baffle 3 is installed on the first bucket 1.

[0035] The first bucket body 1 is provided with a connecting arm 11, which is located on the side of the first baffle 3 near the connecting frame 5. One end of the connecting arm 11 is welded and fixed to the bottom plate of the first bucket body 1, and the other end of the connecting arm 11 is rotatably connected to the connecting arm 11 by a rotating shaft 10. A fixing rod 12 is provided at the end of the connecting arm 11 near the rotating shaft 10. The fixing rod 12 passes through the connecting arm 11 and is welded and fixed to the two side walls of the grab bucket at both ends. There are two connecting arms 11, and the connecting frame 5 is rotatably connected to the ends of the two connecting arms 11 away from the rotating shaft 10.

[0036] A positive stop bar 7 is bolted to the inner wall of the bottom of the first bucket 1 on the side away from the connecting frame 5. The positive stop bar 7 is located at the bottom of the first bucket 1 near the edge of the second bucket 2. The positive stop bar 7 is set along the axis of the rotating shaft 10 and extends toward the second bucket 2.

[0037] Side baffles 8 are bolted to the inner walls of both sides of the first hopper 1. The side baffles 8 are located on the side walls of the first hopper 1 near the edge of the second hopper 2, perpendicular to the fixing rod 12, and extend towards the second hopper 2. When the first hopper 1 and the second hopper 2 are closed together, the front baffle 7 and the side baffles 8 are inserted into the second hopper 2 and fit against the inner wall of the second hopper 2, preventing material from leaking from the gaps at the bottom and sides of the two hoppers.

[0038] refer to Figure 2 The first bucket 1 is equipped with a scraping mechanism 9 for scraping off materials adhering to the inside of the grab bucket. The scraping mechanism 9 includes a scraper plate 91, a side scraper plate 92, and a connecting rod 93. Both the scraper plate 91 and the side scraper plate 92 are elongated. The scraper plate 91 abuts against the bottom of the first bucket 1. One end of the connecting rod 93 is welded and fixed to the scraper plate 91, and the other end of the connecting rod 93 is welded and fixed to the fixing rod 12. The connecting rod 93 is perpendicular to the axis of the rotating shaft 10. The side scraper plate 92 abuts against the inner side walls on both sides of the first bucket 1. One end of the side scraper plate 92 is welded and fixed to the scraper plate 91, and the other end of the side scraper plate 92 is fixed to the fixing rod 12. The side scraper plate 92 is arranged parallel to the connecting rod 93. The second bucket 2 is also equipped with a scraping mechanism 9, and the installation method is the same as that in the first bucket 1. When the two grab buckets close and grab materials, the scraper plates 91 on both grab buckets are located on the side of the first bucket 1 and the second bucket 2 closest to the connecting frame 5.

[0039] The implementation principle of this embodiment is as follows: When the grab bucket grabs material, the drive component 63 drives the movable pulley 62 to move upward, and the first bucket body 1 and the second bucket body 2 rotate around the rotating shaft 10. Finally, the two bucket bodies cooperate to close, and the first baffle 3 and the second baffle 4 seal the top of the two bucket bodies to prevent material from sliding and leaking from the top opening; the front baffle 7 and the side baffle 8 are inserted into the second bucket body 2 and fit against the inner wall of the second bucket body 2 to prevent material from leaking from the gap between the two bucket bodies; when the grab bucket unloads material, the scraper 91 and the side scraper 92 are fixed in place. As the two bucket bodies rotate and open around the rotating shaft 10, the scraper 91 and the side scraper 92 respectively rub against the bottom plate and the side wall of the two bucket bodies to scrape off the material adhering to the inner wall of the two bucket bodies, thereby achieving a comprehensive cleaning of the inner wall and bottom of the grab bucket.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A leak-proof grab bucket, comprising a first bucket body (1), a second bucket body (2), and a connecting frame (5) for connecting the first bucket body (1) and the second bucket body (2) to a crane, wherein a rotating shaft (10) is provided between the first bucket body (1) and the second bucket body (2), and the first bucket body (1) and the second bucket body (2) rotate about the rotating shaft (10) as the center; the first bucket body (1) and the second bucket body (2) are symmetrically arranged, characterized in that, The first bucket (1) is provided with a first baffle (3) on the side near the connecting frame (5), and the second bucket (2) is provided with a second baffle (4) on the side near the connecting frame (5). When the first bucket (1) and the second bucket (2) cooperate to close, the first baffle (3) and the second baffle (4) close the side of the two buckets near the connecting frame (5).

2. The anti-leakage grab bucket according to claim 1, characterized in that, A positive stop bar (7) is provided on the inner wall of the bottom of the first bucket (1) away from the connecting frame (5). The positive stop bar (7) is located at the bottom of the first bucket (1) near the edge of the second bucket (2). The positive stop bar (7) is arranged along the axis of the rotating shaft (10) and extends toward the second bucket (2). When the first bucket (1) and the second bucket (2) are closed together, the positive stop bar (7) is inserted into the second bucket (2) and fits against the inner wall of the second bucket (2).

3. A leak-proof grab bucket according to claim 2, characterized in that, Side baffles (8) are provided on the inner walls of both sides of the first bucket (1). The side baffles (8) are located on the edge of the side wall of the first bucket (1) near the second bucket (2). The side baffles (8) are set perpendicular to the rotating shaft (10) and extend toward the second bucket (2). When the first bucket (1) and the second bucket (2) are closed together, the side baffles (8) are inserted into the second bucket (2) and fit against the inner wall of the second bucket (2).

4. A leak-proof grab bucket according to claim 3, characterized in that, Both the front baffle (7) and the side baffle (8) can be detached and installed on the bucket body.

5. A leak-proof grab bucket according to claim 1, characterized in that, The connecting frame (5) is provided with a lifting mechanism (6) for lifting the rotating shaft (10). The lifting mechanism (6) includes a fixed pulley (61), a movable pulley (62), and a driving member (63) for moving the movable pulley (62). The driving member (63) and the fixed pulley (61) are installed on the side of the connecting frame (5) away from the grab bucket. The movable pulley (62) is fixed to the rotating shaft (10). The driving member (63) drives the movable pulley (62) to move by winding a rope around the fixed pulley (61) and the movable pulley (62).

6. A leak-proof grab bucket according to claim 2, characterized in that, Both sides of the first bucket (1) and the second bucket (2) are fan-shaped, and the bottom plates of the first bucket (1) and the second bucket (2) are arc-shaped. A connecting arm (11) is provided on the first bucket (1). The connecting arm (11) is located on the side of the first baffle (3) near the connecting frame (5). The rotating shaft (10) passes through one end of the connecting arm (11) and is rotatably connected to the connecting arm (11). The end of the connecting arm (11) away from the rotating shaft (10) is fixed to the first bucket (1). On the bottom plate; a fixing rod (12) is fixed at one end of the connecting arm (11) near the rotating shaft (10). The fixing rod (12) passes through the connecting arm (11) and the two ends of the fixing rod (12) are fixed to the two side walls of the grab bucket respectively; the second bucket body (2) is also provided with a connecting arm (11) and a fixing rod (12). The connecting arm (11) and the fixing rod (12) on the second bucket body (2) are installed in the same way as the connecting arm (11) and the fixing rod (12) on the first bucket body (1).

7. A leak-proof grab bucket according to claim 6, characterized in that, The first bucket (1) is provided with a scraping mechanism (9), which includes a scraper (91) and a connecting rod (93). The scraper (91) abuts against the bottom of the first bucket (1), one end of the connecting rod (93) is fixed to the scraper (91), and the other end of the connecting rod (93) is fixed to the fixing rod (12). The second bucket (2) is also provided with a scraping mechanism (9). The scraper (91) and connecting rod (93) in the second bucket (2) are installed in the same way as the scraper (91) and connecting rod (93) in the first bucket (1). When the two grabs close and grab the material, the scraper (91) on both grabs is located on the side of the first bucket (1) and the second bucket (2) close to the connecting frame (5).

8. A leak-proof grab bucket according to claim 7, characterized in that, The scraping mechanism (9) also includes a side scraper (92), which is located on the inner walls of both sides of the first bucket (1). One end of the side scraper (92) is fixed to the scraper (91), and the other end of the side scraper (92) is fixed to the fixing rod (12). The inner walls of both sides of the second bucket (2) are also provided with side scrapers (92). The side scrapers (92) in the second bucket (2) are installed in the same way as the side scrapers (92) in the first bucket (1).

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