A grab bucket
By improving the structural design of the grab bucket segments, using plate bucket tips and U-shaped support components, combined with wear-resistant layers and ribs, the problems of easy wear and high resistance of castings in the existing technology have been solved, and grab bucket segments with low cost, high wear resistance and low system load have been achieved.
Patent Information
- Application Number
- CN202521825779.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-26
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-26
AI Technical Summary
The existing grab buckets have poor environmental performance and high cost due to castings. The welds are prone to wear, which can lead to detachment or breakage. The rectangular cross-section box structure has high resistance when cutting into materials, which increases the system load.
The bucket tip is made of sheet metal and designed as a two-section triangular and trapezoidal structure, combined with U-shaped support components and a wear-resistant layer. The support components have internal stiffeners, the weld is located below the panel, and wear-resistant measures are added to key parts.
It reduces the risk of wear on the bucket tip, decreases resistance to material cutting, avoids increased system load, is low-cost and environmentally friendly, and improves the wear resistance and connection strength of the bucket segments.
Smart Images

Figure CN224677643U_ABST
Abstract
Description
Technical Field
[0001] This utility model pertains to grab buckets, specifically relating to a grab bucket flap. Background Technology
[0002] As people's living standards improve, the amount of municipal solid waste and ash materials generated is increasing daily. Consequently, the loading and unloading efficiency of waste-to-energy plants also needs to be improved. Therefore, higher requirements are placed on the adaptability and wear resistance of the grab bucket's segments.
[0003] Existing lobed structures such as Figures 1-3 As shown, the structure includes a bucket tip 1, a panel 2, side plates 3, and a back plate 4. The bucket tip 1 is cast, with a rectangular cross-section at its tail. The panel 2, the two side plates 3, and the back plate 4 form a box-shaped structure with a rectangular cross-section that matches the tail of the bucket tip 1, and are welded together with the tail of the bucket tip 1. The disadvantages of this structure are: 1. The bucket tip 1 is a cast part, which has poor environmental performance and high cost; 2. The weld 5 at the connection between the tail of the bucket tip 1 and the box-shaped structure is prone to wear and cracking, causing the bucket tip 1 to fall off or break; 3. The rectangular cross-section box-shaped structure has high resistance when cutting into materials, resulting in increased system load. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a grab bucket flap that can reduce resistance when cutting into materials.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A grab bucket flap includes a handle, a panel connected to the upper surface of the handle and extending forward, a bucket tip located at the front end of the panel, and a support member located at the front end of the handle and connected to the panel and the bucket tip. The thickness of the bucket tip is greater than the thickness of the extended section of the panel. The rear end face of the bucket tip is welded to the front end face of the panel, and the upper surface of the bucket tip is higher than the upper surface of the panel.
[0007] The support includes a U-shaped plate and a support plate. The front end face of the U-shaped plate is curved and connected to the extension section of the panel and the bottom surface of the bucket tip. The angle formed by the front end face and the bottom surface of the U-shaped plate gradually thickens from front to back. The upper end face of the U-shaped plate is welded to the handle. The support plate is connected to the lower surface of the handle and bends forward to be welded to the rear end face of the U-shaped plate.
[0008] The bucket tip is designed as a two-section plate structure, with the front section being triangular and the rear section being a trapezoid with a greater taper than the front section.
[0009] The front of the support member is also covered with a wear-resistant layer and connected by plug welding.
[0010] The support member is also provided with stiffening plates, the upper surface of which is welded to the lower surface of the panel and the tip of the bucket, respectively.
[0011] The panel also has a wear-resistant weld overlay layer on both sides.
[0012] The bottom of the pallet is also equipped with wear-resistant edge strips.
[0013] The grab bucket flap of this utility model has the following advantages:
[0014] 1. Because the thickness of the bucket tip is greater than the thickness of the panel extension section, and the upper surface of the bucket tip is higher than the panel, the weld between the two is not easily worn, which may lead to cracking or detachment of the bucket tip.
[0015] 2. Due to the streamlined support structure with a U-shaped cross-section that gradually thickens from front to back, the material flows well on the bucket during the overall insertion process, resulting in less resistance compared to a rectangular cross-section, thus avoiding increased system load.
[0016] 3. The bucket tip is made of board material, which is low in cost and has no environmental protection issues;
[0017] 4. The welds between the support components and the panel are all located below the panel, making them less prone to wear;
[0018] 5. It has ribs, which strengthen the connection between the bucket tip and the panel;
[0019] 6. Wear-resistant measures are provided on the front of the support, the two sides of the panel, and the bottom of the support plate to increase the wear resistance of each part of the bucket. Attached Figure Description
[0020] The utility model will now be described in detail with reference to the accompanying drawings and specific embodiments:
[0021] Figure 1 This is a schematic diagram of the structure of the existing canopy.
[0022] Figure 2 This is a schematic diagram of the structure of the bucket tip in the existing technology;
[0023] Figure 3 This is a schematic diagram of the front end of a box-shaped structure in the prior art;
[0024] Figure 4 This is a schematic diagram of the structure of the lobes of this utility model;
[0025] Figure 5 This is a schematic diagram of the panel structure of this utility model;
[0026] Figure 6 This is a schematic diagram of the structure of the bucket tip of this utility model;
[0027] Figure 7 This is a side view of the support component of this utility model;
[0028] Figure 8This is a top view of the support component of this utility model;
[0029] Figure 9 This is a schematic diagram of the installation of the stiffening plate of this utility model;
[0030] Figure 10 This is a schematic diagram of the rib plate of this utility model;
[0031] Figure 11 This is a bottom view of the canopy of this utility model;
[0032] Figure 12 This is a schematic diagram of the handle of this utility model. Detailed Implementation
[0033] This utility model provides a grab bucket flap, such as... Figures 4-12 As shown, it includes a handle 11, a panel 2 connected to the upper surface of the handle 11 and extending forward, a tip 1 located at the front end of the panel 2, and a support member located at the front end of the handle 11 and connected to the panel 2 and the tip 1. The handle 11 is as follows... Figure 11 As shown, it mainly includes a pair of side plates 111 arranged left and right, a bottom plate 112 located at the bottom between the side plates 111, and a pair of pin holes 113 provided on the side plates 111.
[0034] like Figure 4 , Figure 9 As shown, the thickness of the bucket tip 1 is designed to be greater than the thickness of the extension section of the panel 2. The rear end face of the rear section of the bucket tip 1 is welded to the front end face of the panel 2, and the upper surface of the bucket tip 1 is higher than the upper surface of the panel 2. In this way, the weld between the two is less likely to be worn, which would cause the bucket tip 1 to crack or fall off.
[0035] like Figure 6 As shown, the tip 1 can be directly cut from wear-resistant steel sheet. The overall shape is designed as a two-section design, with the front section being triangular and the rear section being a trapezoid with a greater taper than the front section. In this way, the manufacturing process is simple, pollution-free, and low-cost.
[0036] The support components include a U-shaped plate 12 and a support plate 13, wherein, for example Figures 7-8 As shown, the front end face 121 of the U-shaped plate 12 is curved and welded to the extension of the panel 2 and the bottom surface of the tip 1. The angle formed by the front end face 121 and the U-shaped bottom face 122 of the U-shaped plate 12 gradually thickens from front to back to form a streamlined structure. The upper end face 123 of the U-shaped plate 12 is welded to the front end faces of the two side plates 111 of the handle 11. Figure 11As shown, the support plate 13 is located on the lower surface of the handle 1 and is welded to the front end face of the bottom plate 112 of the handle 1 and the front bottom of the side plates. It also bends forward and extends to fit and weld to the rear end face 124 of the U-shaped plate 12. Because the U-shaped plate 12 adopts the aforementioned streamlined design, it is closer to the shape of the box-shaped structure near the tip 1 of the bucket after wear of the bucket segments in the prior art. Therefore, it better matches the shape of the bucket segments cutting into the material, resulting in less resistance from the material. This solves the problem of difficulty in cutting into the material by the bucket segments, which leads to a large system load during the material grabbing process.
[0037] like Figure 9 As shown, a rib 14 is also provided laterally within the support member 12, and the upper surface of the rib 14 is welded to the lower surface of the panel 2 and the bucket tip 1, respectively. Figure 10 As shown, if the lower surface of the bucket tip 1 is lower than the lower surface of the panel 2, the upper surface of the stiffening plate 14 has a corresponding stepped design. The stiffening plate 14 can further strengthen the bond between the bucket tip 1 and the panel 2.
[0038] Compared with the easily worn areas of the bucket flaps in existing technologies, the bucket flaps of this invention incorporate wear-resistant measures at corresponding locations, which may include one or more of the following:
[0039] The front part of the support member 12 is covered with a wear-resistant layer 15 and connected by plug welding. Figure 7 16 in the diagram is a plug weld hole.
[0040] A wear-resistant weld overlay layer 17 is also provided on both sides of panel 2.
[0041] A wear-resistant edge strip 18 is also provided at the bottom of the tray 13.
[0042] However, those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any changes or modifications to the above embodiments within the scope of the essential spirit of the present utility model will fall within the scope of the claims of the present utility model.
Claims
1. A grab bucket flap, comprising a handle, a panel connected to the upper surface of the handle and extending forward, a bucket tip disposed at the front end of the panel, and a support member disposed at the front end of the handle and connected to the panel and the bucket tip, characterized in that: The thickness of the bucket tip is greater than the thickness of the panel extension section. The rear end face of the bucket tip is welded to the front end face of the panel, and the upper surface of the bucket tip is higher than the upper surface of the panel.
2. The grab bucket flaps according to claim 1, characterized in that: The support includes a U-shaped plate and a support plate. The front end face of the U-shaped plate is curved and connected to the extension section of the panel and the bottom surface of the bucket tip. The angle formed by the front end face and the bottom surface of the U-shaped plate gradually thickens from front to back. The upper end face of the U-shaped plate is welded to the handle. The support plate is connected to the lower surface of the handle and bends forward to be welded to the rear end face of the U-shaped plate.
3. The grab bucket flaps according to claim 1, characterized in that: The bucket tip is designed as a two-section plate structure, with the front section being triangular and the rear section being a trapezoid with a greater taper than the front section.
4. The grab bucket flaps according to claim 1, characterized in that: The front of the support member is also covered with a wear-resistant layer and connected by plug welding.
5. The grab bucket flaps according to claim 1, characterized in that: The support member is also provided with stiffening plates, the upper surface of which is welded to the lower surface of the panel and the tip of the bucket, respectively.
6. The grab bucket flaps according to claim 1, characterized in that: The panel also has a wear-resistant weld overlay layer on both sides.
7. The grab bucket flaps according to claim 2, characterized in that: The bottom of the pallet is also equipped with wear-resistant edge strips.