A bucket connecting seat

CN224620694UActive Publication Date: 2026-08-11NINGBO PINGRONG CASTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-28
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

[0004]本实用新型的目的在于:针对目前的铲斗连接座在安装斗销时大多依赖人工目测对齐,随后将斗销从一侧的斗耳套插入,插入过程中,需要对斗销的一端进行锤击,锤击过程中易导致另一侧斗耳板与动臂连接孔产生径向偏移的问题

Benefits of technology

在本申请的方案中:

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Abstract

This application provides a bucket connecting seat, including a mounting plate and bucket ear plates. Three sets of bucket ear plates are arranged in pairs, and each set is fixedly connected to one side wall of the mounting plate. Each set of bucket ear plates has a limiting component installed on one side, and each limiting component contains a snap-fit ​​component. This application utilizes the limiting components for pre-positioning, achieving dynamic stability during bucket pin installation. When the limiting component is inserted into the connection hole between one side of the bucket ear plate and the loader's robotic arm, and then the bucket pin is inserted from the other side of the bucket ear plate, the limiting component limits the connection between the bucket ear plate and the loader's robotic arm, effectively counteracting the offset force caused by hammering, significantly improving bucket installation efficiency. Furthermore, the snap-fit ​​component secures the limiting component, preventing movement of the limiting component during bucket operation, preventing damage to the limiting component from affecting its positioning effect, and effectively extending the service life of the limiting component.
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Description

Technical Field

[0001] This utility model relates to the field of mechanical installation technology, and more specifically, to a bucket connecting seat. Background Technology

[0002] As a key force transmission node between the bucket and the boom, the bucket connecting seat's core function is to convert the hydraulic cylinder thrust into the bucket's digging force. It can withstand the material's reaction force and, through the pin connection, enable the bucket to move in multiple directions such as pitch and sway. At the same time, it can absorb instantaneous impact energy when digging hard materials.

[0003] The bucket connector requires a bucket pin to secure the connector and the loader's boom during installation. When installing the bucket pin, it's crucial to ensure alignment between the boom's connection hole and the hole in the bucket lug. Currently, most bucket connector installations rely on manual visual alignment, followed by inserting the bucket pin through one side of the bucket lug. During insertion, one end of the bucket pin is hammered, which can easily cause radial misalignment between the other side of the bucket lug and the boom's connection hole. This necessitates readjustment, leading to low installation efficiency and potentially severe wear on the holes in the bucket lug and the boom connection hole. Therefore, we have proposed an improved bucket connector. Summary of the Invention

[0004] The purpose of this utility model is to address the problem that current bucket connectors mostly rely on manual visual alignment when installing bucket pins, and then insert the bucket pin from one side of the bucket ear sleeve. During the insertion process, one end of the bucket pin needs to be hammered, which can easily cause radial displacement between the bucket ear plate on the other side and the boom connection hole.

[0005] To achieve the above-mentioned objectives, this invention provides a bucket connecting seat to improve the aforementioned problems.

[0006] The application is as follows: A bucket connecting seat includes a mounting plate and bucket ear plates. The bucket ear plates are arranged in three groups, with each group consisting of two bucket ear plates. The three groups of bucket ear plates are respectively fixedly connected to one side wall of the mounting plate. Each group of bucket ear plates has a limiting component installed on one side, and each limiting component has a snap-fit ​​component installed inside it.

[0007] As a preferred technical solution of this application, the limiting component includes a fixing ring, which is fixedly installed on one side of one of the ear plates. Two columns are fixedly connected to one side of the fixing ring, and a connecting plate is fixedly connected to the ends of the two columns away from the ear plates.

[0008] As a preferred technical solution of this application, a movable frame is slidably sleeved between the two columns, and a limiting column is fixedly sleeved in the middle of the movable frame.

[0009] As a preferred technical solution of this application, the snap-fit ​​assembly includes an insertion port, which is located in the middle of the connecting plate. A sliding cavity is provided inside the connecting plate, and multiple springs are fixedly connected to the inner wall of the sliding cavity on the side away from the insertion port.

[0010] As a preferred technical solution of this application, a sliding plate is slidably connected to the inner wall of the sliding cavity. The sliding plate is fixedly connected to one end of a plurality of springs near the insertion port. A locking block is fixedly connected to the side of the sliding plate away from the springs. The locking block slides through the sliding cavity.

[0011] As a preferred technical solution of this application, the limiting post is fixedly connected to the side near the connecting plate with an insert block, the insert block is slidably disposed inside the insertion port, and a slot is provided on one side of the insert block, the slot engaging with the insert block.

[0012] As a preferred technical solution of this application, a toggle opening is provided on one side of the sliding cavity, and a toggle block is slidably connected in the toggle opening, with one end of the toggle block fixedly connected to one side of the sliding plate.

[0013] As a preferred technical solution of this application, each of the fixing rings is equipped with a fixing component, the fixing component includes multiple bolts, and multiple internal threaded holes are opened on one side of the ear plate on which the fixing rings are installed, and the multiple bolts are respectively threaded into the multiple internal threaded holes.

[0014] As a preferred technical solution of this application, each of the bucket ear plates is fixedly fitted with a bucket ear sleeve, and each of the bucket ear plates is fixedly connected with a back plate.

[0015] As a preferred technical solution of this application, the inner wall of the slot and the side of the movable frame near the connecting plate are both fixedly connected with anti-slip pads, and the anti-slip pads are made of soft rubber.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: In the scheme of this application: To address the current technology where bucket pin installation relies heavily on manual visual alignment, followed by insertion from one side of the bucket lug, which requires hammering one end of the pin, potentially causing radial misalignment between the other side's bucket lug plate and the boom connection hole, necessitating readjustment, this application utilizes a limiting component for pre-positioning. This creates dynamic stability during bucket pin installation. First, the limiting component is inserted into one side of the bucket lug plate and the loader boom connection hole. Then, as the bucket pin is inserted from the other side, the limiting component restricts the connection between the bucket lug plate and the loader boom connection hole, effectively counteracting the offset force caused by hammering. This significantly improves bucket installation efficiency. Furthermore, the locking component secures the limiting component, preventing movement during bucket operation and protecting its positioning performance from damage, thus extending its service life. Attached Figure Description

[0017] Figure 1 A schematic diagram of the main structure of the bucket connecting seat provided in this application; Figure 2 Another perspective schematic diagram of the main structure of the bucket connecting seat provided in this application; Figure 3 A schematic diagram of the installed structure of the bucket connecting seat provided in this application; Figure 4 A schematic diagram of the internal threaded hole structure of the bucket connecting seat provided in this application; Figure 5 A schematic diagram of the limiting component and snap-fit ​​component of the bucket connecting seat provided in this application.

[0018] The image shows: 1. Mounting plate; 2. Ear plate; 3. Limiting components; 301. Fixing ring; 302. Column; 303. Connecting plate; 304. Moving frame; 305. Limiting post; 4. Snap-fit ​​assembly; 401. Insertion port; 402. Sliding cavity; 403. Spring; 404. Sliding plate; 405. Snap block; 406. Insertion block; 407. Snap slot; 408. Actuating port; 409. Actuating block; 5. Bolts; 6. Internal threaded holes; 7. Bucket ear covers; 8. Back plate. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0020] As described in the background art, most current bucket couplings rely on manual visual alignment when installing bucket pins. The bucket pin is then inserted from one side of the bucket lug. During the insertion process, one end of the bucket pin needs to be hammered. This hammering process can easily cause radial displacement between the bucket lug plate on the other side and the boom connection hole. At this time, the operator needs to readjust, which not only leads to low installation efficiency, but may also cause severe wear on the holes of the bucket lug and the boom connection hole.

[0021] To solve this technical problem, this utility model provides a bucket connecting seat, which is used for connecting the bucket of a loader.

[0022] For details, please refer to Figures 1-5 The bucket connecting seat specifically includes: Mounting plate 1 and bucket ear plate 2. The bucket ear plate 2 is provided in three sets, with the bucket ear plates 2 arranged in pairs. The three sets of bucket ear plates 2 are fixedly connected to one side wall of mounting plate 1. Each set of bucket ear plates 2 has a limit component 3 installed on one side, and each limit component 3 has a snap-fit ​​component 4 installed inside.

[0023] The bucket connecting seat provided by this utility model has symmetrically arranged limiting components 3 on both sides. The limiting components 3 are used for pre-positioning, forming dynamic stability during the bucket pin installation process. First, the limiting components 3 are inserted into the bucket ear plate 2 and the loader mechanical arm connection hole on one side. Then, when the bucket pin is inserted from the bucket ear plate 2 on the other side, the limiting components 3 limit the bucket ear plate 2 and the loader mechanical arm connection hole on one side, effectively counteracting the offset force caused by hammering, significantly improving the bucket installation efficiency. In addition, the locking component 4 fixes the limiting components 3, preventing the limiting components 3 from moving during the operation of the bucket, preventing damage to the limiting components 3 from affecting the positioning effect of the limiting components 3, and effectively improving the service life of the limiting components 3.

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0025] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] Example 1, please refer to Figures 1-5 A bucket connecting seat includes a mounting plate 1 and bucket ear plates 2. Three sets of bucket ear plates 2 are arranged in pairs, and each set is fixedly connected to one side wall of the mounting plate 1. A limiting component 3 is installed on one side of each set of bucket ear plates 2, and a snap-fit ​​component 4 is installed within each limiting component 3. The mounting plate 1 is welded to the bucket, and the loader's robotic arm is placed between each set of bucket ear plates 2. Then, a limiting pin 305 from the limiting component 3 is inserted into the connection hole between one side of the bucket ear plate 2 and the loader's robotic arm, forming a temporary rigid fixation to ensure that the hole on that side is aligned without misalignment. Finally, a bucket pin is inserted from the other side of the bucket ear plate. 2. Insert the bucket pin into the connecting hole on the other side of the loader's robotic arm. Then, hammer the bucket pin to gradually insert it. At this time, the limiting post 305 limits the connection between one side of the bucket ear plate 2 and the loader's robotic arm, absorbing the stress generated by the hammering and preventing the bucket ear plate 2 from shifting from the connection hole of the loader's robotic arm. As the bucket pin gradually inserts, the limiting post 305 can be pushed out of the connection hole between one side of the bucket ear plate 2 and the loader's robotic arm. At the same time, the bucket pin passes through one side of the bucket ear plate 2, thus completing the installation of the bucket pin. No manual intervention or adjustment is required during the installation process, which significantly improves the efficiency of bucket installation.

[0028] Furthermore, such as Figure 1 and Figure 5 As shown, the limiting component 3 includes a fixing ring 301, which is fixedly installed on one side of one of the bucket ear plates 2. Two columns 302 are fixedly connected to one side of the fixing ring 301. The ends of the two columns 302 away from the bucket ear plate 2 are jointly fixedly connected to a connecting plate 303. A movable frame 304 is slidably sleeved between the two columns 302. A limiting post 305 is fixedly sleeved in the middle of the movable frame 304. The fixing ring 301 is directly fixed to one side of one of the bucket ear plates 2. It is supported by the extension of the two columns 302 and connected to the connecting plate 303 to form a rigid support frame. When installing the bucket pin, the limiting post 305 can quickly position and temporarily fix the hole alignment, effectively absorbing the hammering stress, preventing radial displacement and hole wear, significantly improving installation efficiency and extending the service life of the component.

[0029] Example 2 further optimizes the bucket connecting seat provided in Example 1, specifically, as follows: Figure 1 and Figure 5As shown, the snap-fit ​​assembly 4 includes an insertion port 401, which is located in the middle of the connecting plate 303. A sliding cavity 402 is formed within the connecting plate 303. Multiple springs 403 are fixedly connected to the inner wall of the sliding cavity 402 on the side away from the insertion port 401. A sliding plate 404 is slidably connected to the inner wall of the sliding cavity 402, and is fixedly connected to the end of the multiple springs 403 near the insertion port 401. A locking block 405 is fixedly connected to the side of the sliding plate 404 away from the springs 403, and the locking block 405 slides through the sliding cavity 402. A plug 406 is fixedly connected to the side of the limiting post 305 near the connecting plate 303, and the plug 406 is slidably disposed inside the insertion port 401. A slot 40 is formed on one side of the plug 406. 7. The locking block 405 engages with the locking slot 407. After the bucket pin is installed, the user moves the moving frame 304, causing the insert block 406 on one side of the limiting post 305 to move into the insertion port 401. The side wall of the insert block 406 will contact the inclined surface of the locking block 405. The locking block 405 decomposes the thrust, causing the spring 403 to contract. The locking block 405 gradually moves into the sliding cavity 402. When the locking block 405 is aligned with the locking slot 407, the spring 403 returns to its original position, and the locking block 405 moves into the locking slot 407, thus limiting the moving frame 304 and preventing the limiting post 305 from moving during bucket operation. This prevents the limiting post 305 from being damaged by impact, thereby ensuring the positioning effect of the limiting post 305 and effectively improving the service life of the limiting component 3.

[0030] Furthermore, such as Figure 5 As shown, a toggle port 408 is provided on one side of the sliding cavity 402, and a toggle block 409 is slidably connected in the toggle port 408. One end of the toggle block 409 is fixedly connected to one side of the sliding plate 404. The user can directly drive the sliding plate 404 to compress the spring 403 through the exposed toggle block 409, so that the locking block 405 is disengaged from the locking groove 407, thereby quickly releasing the locking state of the limiting post 305. This not only makes disassembly and portability convenient, but also ensures that the operating force is directly transmitted to the sliding plate 404, effectively preventing accidental contact that could cause the limiting post 305 to fail to stay in place.

[0031] Example 3 further optimizes the bucket connecting seat provided in Example 1, specifically, as follows: Figure 4 As shown, each fixing ring 301 is equipped with a fixing component, which includes multiple bolts 5. The bucket ear plate 2 on which the fixing ring 301 is installed has multiple internal threaded holes 6. The multiple bolts 5 are threaded into the multiple internal threaded holes 6 respectively. The fixing ring 301 is tightly connected to the internal threaded holes 6 of the bucket ear plate 2 through the bolts 5, forming a rigid fixing structure to ensure the stability of the limiting component 3 during bucket operation. At the same time, the bolt connection method facilitates disassembly and maintenance, improving the reliability and economy of the overall structure.

[0032] Furthermore, such as Figures 1-4As shown, each ear plate 2 is fixedly fitted with an ear sleeve 7, and each ear plate 2 is fixedly connected with a back plate 8. The back plates 8 on the ear plates 2 located on both sides of the mounting plate 1 are installed below the ear plates 2, and the back plates 8 on the ear plates 2 located in the middle of the mounting plate 1 are installed above the ear plates 2. The ear sleeve 7 is fixedly nested inside the ear plate 2, which enhances the wear resistance of the pin contact surface and reduces the hole deformation caused by long-term friction. The rigid connection between the back plate 8 and the ear plate 2 forms a composite support structure, which effectively disperses the dynamic load during bucket operation and prevents the ear plate 2 from plastic deformation due to stress concentration. The synergy of the two not only extends the service life of key components, but also improves the overall impact resistance of the connecting seat, ensuring the stability of the force transmission path during excavation operations.

[0033] Furthermore, such as Figure 5 As shown, anti-slip pads are fixedly connected to the inner wall of the slot 407 and the side of the movable frame 304 near the connecting plate 303. The anti-slip pads are made of soft rubber. When the limiting post 305 is inserted into the connection hole between one side of the bucket ear plate 2 and the loader's mechanical arm for limiting, the side of the movable frame 304 can be hammered to insert the limiting post 305. The soft rubber anti-slip pads, through their high coefficient of friction, not only enhance the engagement stability of the slot 407 and the block 405, preventing accidental disengagement caused by high-frequency vibration of the bucket, but also protect the movable frame 304 from damage caused by continuous hammering.

[0034] The usage process of the bucket connecting seat provided by this utility model is as follows: The mounting plate 1 is welded to the bucket. The loader's robotic arm is placed between each set of bucket ear plates 2. Then, the limiting post 305 in the limiting assembly 3 is inserted into the connection hole between one side of the bucket ear plate 2 and the loader's robotic arm to form a temporary rigid fixation, ensuring that the hole on this side is aligned without misalignment. Then, the bucket pin is inserted from the other side of the bucket ear plate 2 and inserted into the connection hole on the other side of the loader's robotic arm. The bucket pin is then hammered, causing it to gradually insert. At this time, the limiting post 305 limits the connection hole between one side of the bucket ear plate 2 and the loader's robotic arm, absorbing the stress generated by the hammering and preventing the bucket ear plate 2 from misaligning with the connection hole of the loader's robotic arm. As the bucket pin gradually inserts, the limiting post 305 is pushed out of the connection hole between one side of the bucket ear plate 2 and the loader's robotic arm. At the same time, the bucket pin passes through one side of the bucket ear plate 2, thus completing the installation of the bucket pin. No manual intervention or adjustment is required during the installation process, significantly improving the bucket installation efficiency. After the bucket pin is installed, the user moves the movable frame 304, causing the insert block 406 on one side of the limiting post 305 to move into the insertion port 401. The side wall of the insert block 406 will contact the inclined surface of the locking block 405. The locking block 405 will decompose the thrust, causing the spring 403 to contract. The locking block 405 will gradually move into the sliding cavity 402. When the locking block 405 is aligned with the slot 407, the spring 403 will reset, and the locking block 405 will move into the slot 407, thus limiting the movable frame 304 and preventing the limiting post 305 from moving during bucket operation. This prevents the limiting post 305 from being damaged by impact, thereby ensuring the positioning effect of the limiting post 305 and effectively improving the service life of the limiting component 3.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A bucket connecting seat, characterized in that, It includes an installation plate (1) and a bucket ear plate (2). The bucket ear plate (2) is provided in three groups. The bucket ear plates (2) are arranged in pairs. The three groups of bucket ear plates (2) are respectively fixedly connected to one side wall of the installation plate (1). Each group of bucket ear plates (2) has a limit component (3) installed on one side. Each limit component (3) has a snap-fit ​​component (4) installed inside.

2. The bucket connecting seat according to claim 1, characterized in that, The limiting component (3) includes a fixing ring (301), which is fixedly installed on one side of one of the ear plates (2). Two columns (302) are fixedly connected to one side of the fixing ring (301), and a connecting plate (303) is fixedly connected to the end of the two columns (302) away from the ear plate (2).

3. A bucket connecting seat according to claim 2, characterized in that, A movable frame (304) is slidably sleeved between the two columns (302), and a limiting column (305) is fixedly sleeved in the middle of the movable frame (304).

4. A bucket connecting seat according to claim 3, characterized in that, The snap-fit ​​assembly (4) includes an insertion port (401), which is located in the middle of the connecting plate (303). A sliding cavity (402) is provided in the connecting plate (303), and multiple springs (403) are fixedly connected to the inner wall of the sliding cavity (402) away from the insertion port (401).

5. A bucket connecting seat according to claim 4, characterized in that, A sliding plate (404) is slidably connected to the inner wall of the sliding cavity (402). The sliding plate (404) is fixedly connected to one end of a plurality of springs (403) near the insertion port (401). A locking block (405) is fixedly connected to the side of the sliding plate (404) away from the springs (403). The locking block (405) slides through the sliding cavity (402).

6. A bucket connecting seat according to claim 5, characterized in that, The limiting post (305) is fixedly connected to a plug (406) on the side near the connecting plate (303). The plug (406) is slidably disposed inside the insertion port (401). A slot (407) is provided on one side of the plug (406). The plug (405) engages with the slot (407).

7. A bucket connecting seat according to claim 5, characterized in that, The sliding cavity (402) has a toggle opening (408) on one side, and a toggle block (409) is slidably connected in the toggle opening (408). One end of the toggle block (409) is fixedly connected to one side of the sliding plate (404).

8. A bucket connecting seat according to claim 2, characterized in that, Each of the fixing rings (301) is equipped with a fixing component, which includes multiple bolts (5). The ear plate (2) on which the fixing ring (301) is installed has multiple internal threaded holes (6) on one side, and the multiple bolts (5) are threaded into the multiple internal threaded holes (6) respectively.

9. A bucket connecting seat according to claim 1, characterized in that, Each of the ear plates (2) is fixedly fitted with an ear sleeve (7), and each of the ear plates (2) is fixedly connected with a back plate (8).

10. A bucket connecting seat according to claim 6, characterized in that, The inner wall of the slot (407) and the side of the movable frame (304) near the connecting plate (303) are both fixedly connected with anti-slip pads, the anti-slip pads being made of soft rubber.