Multifunctional bucket for construction engineering excavator

Abstract

The utility model provides a kind of multifunctional bucket for construction engineering excavator, it is related to bucket technical field, including main bucket, side baffle and inner lattice frame, the both sides of main bucket are provided with side baffle, the inboard of main bucket is provided with inner lattice frame, the inboard bottom of main bucket is provided with inner slide groove at interval array, the both sides of the back of main bucket are rotatably connected with side telescopic cylinder, the back of main bucket is fixedly connected with middle telescopic cylinder, the both sides of the back of main bucket are fixedly connected with side connecting slide column. After side baffle expands towards both sides, the both sides of main bucket form unobstructed through channel, steel pipe can be transported in main bucket, seamless switching between earth excavation and steel pipe transportation working condition can be realized, solve the problem that bucket is limited by two sides closed fixed structure, only adapt to earth, gravel and other bulk materials, cannot accommodate length of construction steel pipe.

Description

Technical Field

[0001] This utility model relates to the field of bucket technology, and in particular to a multi-functional bucket for construction excavators. Background Technology

[0002] Excavators use their buckets to load, transport, and unload materials in construction projects, and are widely used in earthwork excavation, sand and gravel loading and unloading, site leveling, and other scenarios.

[0003] Existing buckets are limited by their closed and fixed structures on both sides, making them only suitable for loose materials such as earth and gravel. They cannot accommodate long construction steel pipes. If forced to load, the steel pipes may shift or slip, posing a safety risk. When transporting long materials, the machine must be stopped to replace special attachments, which takes 30 to 60 minutes each time, reducing the excavator's working time. In addition, the sticky soil adheres strongly to the bucket wall, requiring manual cleaning of the sticky soil inside the bucket periodically. Summary of the Invention

[0004] This utility model provides a multi-functional bucket for construction excavators. After the side baffles are unfolded to both sides, an unobstructed through passage is formed on both sides of the main bucket. The main bucket can transport steel pipes, and can seamlessly switch between earthwork excavation and steel pipe transportation. There is no need to change accessories when transporting steel pipes. The movement of the inner grid frame promotes the shedding of cohesive soil inside the main bucket, reducing the residue of cohesive soil inside the main bucket.

[0005] This utility model provides a multi-functional bucket for construction excavators, specifically including a main bucket, side baffles, and an inner grid frame. Side baffles are provided on both sides of the main bucket, and an inner grid frame is provided on the inner side of the main bucket. The main bucket is a welded structure of NM500 wear-resistant steel, with a basic bucket capacity of 1.2 m³ and a wall thickness of 8-10 mm. Inner sliding grooves are arranged in an array at intervals on the inner bottom of the main bucket. Side telescopic cylinders are rotatably connected to both sides of the back of the main bucket via pins. A central telescopic cylinder is fixedly connected to the back of the main bucket. Side connecting sliding columns are welded and fixedly connected to both sides of the back of the main bucket. Both the side telescopic cylinders and the central telescopic cylinder are compatible with the excavator's 31.5 MPa hydraulic system, with a working temperature range of -20℃ to 80℃. The cylinder barrel is made of 27SiMn seamless steel pipe, and the piston rod surface is chrome-plated. 8 mm thick NM500 wear-resistant plates are welded to the front edge of the bucket bottom and the side walls of the bucket. Bolt holes are reserved at the bucket tooth mounting positions.

[0006] Furthermore, the side baffle is made of NM450 wear-resistant steel with a thickness of 6mm. Its height and width are adapted to the side wall of the main bucket. An upper rotating shaft is welded and fixedly connected to the upper part of the side baffle, and the tail end of the upper rotating shaft is welded and fixedly connected to the rear connecting swing arm.

[0007] Furthermore, the middle part of the upper rotating shaft is rotatably connected to the main bucket in a circumferential direction, and the upper rotating shaft is rotatably connected to both sides of the main bucket. The telescopic rod of the side telescopic cylinder and the tail pin of the rear connecting swing arm are rotatably connected. The side baffle is driven by the side telescopic cylinder to unfold around the upper rotating shaft, forming an unobstructed through channel on both sides of the main bucket.

[0008] Furthermore, the inner grid frame is welded into a grid structure from 45mm diameter steel, and a rear connecting frame is welded and fixedly connected to the tail of the inner grid frame. The rear connecting frame and the side connecting slide column are slidably connected.

[0009] Furthermore, the tail of the inner grid frame extends to the outer side of the back of the main bucket, the rear connecting frame is located on the outer side of the back of the main bucket, and the telescopic rod of the middle telescopic cylinder is fixedly connected to the rear connecting frame.

[0010] Furthermore, the inner grid frame and the inner sliding groove are slidably connected. The inner grid frame is located between the side baffles on both sides of the main bucket. When the telescopic cylinder extends and retracts, it drives the inner grid frame to slide back and forth along the inner sliding groove. The grid unit forms mechanical scraping and disturbance on the sticky soil attached to the inner wall of the main bucket, thereby destroying the adhesion between the soil and the bucket wall.

[0011] Furthermore, when the side telescopic cylinder extends, the side baffle and the rear connecting swing arm rotate around the upper rotating shaft, and the lower part of the side baffle moves to the outside of the main bucket, forming an unobstructed through channel on both sides of the main bucket to realize the transportation of seamless steel pipes and galvanized steel pipes for construction. When the side telescopic cylinder retracts, the side baffle returns to its original position and fits against the side wall of the main bucket, and the side baffle closes the sides of the main bucket to realize the excavation of soil and rock.

[0012] This utility model provides a multi-functional bucket for construction excavators, which has the following advantages: After the side baffles unfold to both sides, an unobstructed through passage is formed on both sides of the main bucket, allowing steel pipes to be transported inside the main bucket. This expands the application range of the main bucket and enables seamless switching between earthwork excavation and steel pipe transportation. Since there is no need to change accessories during steel pipe transportation, construction organization efficiency is greatly improved.

[0013] When the main bucket is excavating in cohesive soil, the extension and retraction of the side telescopic cylinder causes the rear connecting frame and the inner grid frame to move back and forth. The inner grid frame promotes the shedding of cohesive soil inside the main bucket, reduces the residue of cohesive soil inside the main bucket, and reduces the cleaning burden on the main bucket. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0015] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0016] In the attached diagram: Figure 1 A schematic diagram of the overall structure of this application is shown; Figure 2 A schematic diagram of the main bucket structure of this application is shown; Figure 3 A structural schematic diagram of the side baffle in the deployed state of this application is shown; Figure 4 A schematic diagram of the telescopic cylinder structure of this application is shown; Figure 5 A schematic diagram of the internal grid structure of this application is shown; Figure 6 This invention presents a structural schematic diagram showing the main bucket and inner grid frame in their separated state. Figure label: 1. Main bucket; 101. Inner sliding groove; 102. Side telescopic cylinder; 103. Center telescopic cylinder; 104. Side connecting slide column; 2. Side baffle; 201. Upper pivot; 202. Rear connecting swing arm; 3. Inner grid frame; 301. Rear connecting frame. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] Example 1: Please refer to Figures 1 to 6 : This utility model proposes a multi-functional bucket for construction excavators, including a main bucket 1, side baffles 2, and an inner grid frame 3. The main bucket 1 is a welded structure of NM500 wear-resistant steel, with a basic bucket capacity of 1.2 m³ and a wall thickness of 8-10 mm. The inner bottom of the main bucket 1 is provided with an array of internal sliding grooves 101. Side telescopic cylinders 102 are rotatably connected to both sides of the back of the main bucket 1 via pins. A central telescopic cylinder 103 is fixedly connected to the back of the main bucket 1. Both sides of the back of the main bucket 1 are welded... The main bucket 1 is fixedly connected to a side connecting slide column 104. The side telescopic cylinder 102 and the center telescopic cylinder 103 are both compatible with the excavator's 31.5MPa hydraulic system, with an operating temperature range of -20℃ to 80℃. The cylinder barrel is made of 27SiMn seamless steel pipe, and the piston rod surface is chrome-plated. The front edge of the bucket bottom and the side walls of the main bucket 1 are welded with 8mm thick NM500 wear-resistant plates. Bolt holes are pre-drilled at the bucket tooth mounting positions. Side baffles 2 are installed on both sides of the main bucket 1. The side baffles 2 are made of NM450 wear-resistant steel and are [thickness missing]. The side baffle 2 has a diameter of 6mm, and its height and width are adapted to the side wall of the main bucket 1. The upper part of the side baffle 2 is welded and fixedly connected to the upper rotating shaft 201. The tail end of the upper rotating shaft 201 is welded and fixedly connected to the rear connecting swing arm 202. The middle part of the upper rotating shaft 201 is circumferentially connected to the main bucket 1. The upper rotating shaft 201 is rotatably connected to both sides of the main bucket 1. The telescopic rod of the side telescopic cylinder 102 is rotatably connected to the tail end pin of the rear connecting swing arm 202. The side baffle 2 is driven by the side telescopic cylinder 102 to rotate around the upper rotating shaft 201. When unfolded, the main bucket 1 forms an unobstructed through passage on both sides. An inner grid frame 3 is provided on the inner side of the main bucket 1. The inner grid frame 3 is welded into a grid structure from 45mm diameter steel. A rear connecting frame 301 is welded and fixedly connected to the tail of the inner grid frame 3. The rear connecting frame 301 and the side connecting slide column 104 are slidably connected. The tail of the inner grid frame 3 extends to the outer back of the main bucket 1. The rear connecting frame 301 is located on the outer back of the main bucket 1. The telescopic rod of the middle telescopic cylinder 103 is fixedly connected to the rear connecting frame 301.

[0019] In this embodiment, the inner grid frame 3 and the inner sliding groove 101 are slidably connected. The inner grid frame 3 is located between the side baffles 2 on both sides of the main bucket 1. When the telescopic cylinder 103 extends and retracts, it drives the inner grid frame 3 to slide back and forth along the inner sliding groove 101. The grid unit 302 forms mechanical scraping and disturbance on the sticky soil attached to the inner wall of the main bucket 1, destroying the adhesion between the soil and the bucket wall, promoting soil shedding, and achieving the effect of unloading cleanly.

[0020] In this embodiment, when the side telescopic cylinder 102 extends, the side baffle 2 and the rear connecting swing arm 202 rotate around the upper rotating shaft 201, and the lower part of the side baffle 2 moves to the outside of the main bucket 1, forming an unobstructed through channel on both sides of the main bucket 1 to realize the transportation of seamless steel pipes and galvanized steel pipes for construction. When the side telescopic cylinder 102 retracts, the side baffle 2 returns to its original position and fits against the side wall of the main bucket, and the side baffle 2 closes the two sides of the main bucket 1 to realize the excavation of soil and rock, and can seamlessly switch between earthwork excavation, steel pipe transportation, sand and gravel loading and unloading and other working conditions.

[0021] In this second embodiment, based on the first embodiment, an inverted L-shaped wedge is provided at the lower end of the side baffle 2. When the side baffle 2 is attached to both sides of the main bucket 1, the inverted L-shaped wedge is attached to the bottom outer side of both sides of the main bucket 1. The inverted L-shaped wedge provides auxiliary support for the main bucket 1, improves the structural strength of the main bucket 1, and reduces the deformation of the main bucket 1.

[0022] The working principle of this embodiment is as follows: The side baffle 2 is driven by the side telescopic cylinder 102 to unfold around the upper rotating shaft 201, forming an unobstructed through channel on both sides of the main bucket 1. The width of the channel is the same as the length of the main bucket 1, which can accommodate steel pipes of 3 to 6 meters in length. It can stably carry seamless steel pipes and galvanized steel pipes for construction with a diameter of 50 to 200 mm. The single transport capacity is 3 to 5 pipes, depending on the diameter of the steel pipe. It has the dual-scenario adaptability of shoveling bulk materials and transporting long materials. Compared with the traditional bucket, which can only grab 1 pipe with the help of the grab bucket, the steel pipe transport efficiency is greatly improved, and there is no need to replace the accessories. The idle time of the equipment is reduced by 2 to 3 hours per shift. The unfolding angle of the side baffle 2 can be adjusted by the stroke of the side telescopic cylinder 102. When transporting steel pipes with a larger diameter, it unfolds to 45° to form a side support to prevent the steel pipe from rolling off. When transporting steel pipes with a smaller diameter, it unfolds to 20° to form a limiting groove to prevent the steel pipe from moving. No additional purchase of dedicated grab buckets is required; the purchase cost of a single grab bucket is 80,000-120,000 yuan, reducing equipment investment costs by 30%. The same excavator can seamlessly switch between working conditions such as "earthwork excavation → steel pipe transportation → sand and gravel loading and unloading," with a switching time of ≤1 minute. It is suitable for the "multi-process cross-operation" requirements of construction projects, and is especially suitable for prefabricated building construction sites that require frequent transfer of steel pipes and components, improving construction organization efficiency by 40%. Addressing the pain points of traditional buckets scooping sticky soils such as red clay and silt, where material adheres heavily and manual cleaning is required after unloading, leading to operational interruptions and low efficiency, this design achieves active desorption of sticky soil through the hydraulically driven reciprocating movement of the inner grid frame. The central telescopic cylinder 103 drives the inner grid frame 3 to slide reciprocally along the inner slide groove 101. The grid unit 302 mechanically scrapes and disturbs the sticky soil adhering to the inner wall of the main bucket 1, breaking the adhesion between the soil and the bucket wall and pushing the soil towards the bucket opening, achieving a clean unloading effect without any manual cleaning, thus improving efficiency. At the same time, it avoids the corrosion of the bucket wall caused by long-term sticky soil adhesion, extending its service life.

[0023] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only involve structures relevant to the embodiments disclosed herein; other structures may refer to general designs.

[0024] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0025] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A multi-functional bucket for a construction excavator, comprising: The main bucket (1), side baffles (2) and inner grid frame (3) are characterized in that side baffles (2) are provided on both sides of the main bucket (1), an inner grid frame (3) is provided on the inner side of the main bucket (1), an inner sliding groove (101) is provided in an array at intervals on the bottom inner side of the main bucket (1), a side telescopic cylinder (102) is rotatably connected to both sides of the back of the main bucket (1), a central telescopic cylinder (103) is fixedly connected to the back of the main bucket (1), and a side connecting sliding column (104) is fixedly connected to both sides of the back of the main bucket (1).

2. The multi-functional bucket for a construction excavator according to claim 1, characterized in that, The upper part of the side baffle (2) is welded and fixedly connected to the upper rotating shaft (201), and the tail end of the upper rotating shaft (201) is welded and fixedly connected to the rear connecting swing arm (202).

3. A multi-functional bucket for a construction excavator according to claim 2, characterized in that, The middle part of the upper rotating shaft (201) is circumferentially connected to the main bucket (1), and the telescopic rod of the side telescopic cylinder (102) is rotatably connected to the tail end of the rear connecting swing arm (202).

4. A multi-functional bucket for a construction excavator according to claim 1, characterized in that, The rear end of the inner grid frame (3) is welded and fixedly connected to a rear connecting frame (301), and the rear connecting frame (301) and the side connecting slide column (104) are slidably connected.

5. A multi-functional bucket for a construction excavator according to claim 4, characterized in that, The tail of the inner grid frame (3) extends to the outer side of the back of the main bucket (1), and the rear connecting frame (301) is located on the outer side of the back of the main bucket (1). The telescopic rod of the middle telescopic cylinder (103) is fixedly connected to the rear connecting frame (301).

6. A multi-functional bucket for a construction excavator according to claim 1, characterized in that, The inner grid frame (3) and the inner slide groove (101) are slidably connected, and the inner grid frame (3) is located between the side baffles (2) on both sides of the main bucket (1).

7. A multi-functional bucket for a construction excavator according to claim 2, characterized in that, When the side telescopic cylinder (102) extends, the side baffle (2) and the rear connecting swing arm (202) rotate around the upper rotating shaft (201), and the lower part of the side baffle (2) moves to the outside of the main bucket (1).

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