Excavator bucket tooth structure

By combining a long, thin, and uneven bucket tooth assembly with an expansion assembly, the problem of low efficiency of existing bucket teeth when digging deep holes and trenches is solved, achieving a highly efficient and stable digging effect.

CN224199961UActive Publication Date: 2026-05-05JIANHU SUGONG MACHINERY TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANHU SUGONG MACHINERY TECHNOLOGY CO LTD
Filing Date
2025-03-14
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing excavator bucket teeth are inefficient when digging deep holes and ditches. Common bucket tooth structures are not easily damaged but cannot meet depth requirements.

Method used

A bucket tooth assembly is designed with long teeth of uneven thickness. It is combined with a tooth base assembly through a connecting plate and a connecting block, and fixed with an expansion component to achieve a stable connection.

Benefits of technology

It enables excavators to operate efficiently when digging deep holes and ditches, and improves the stability and ease of installation of the bucket teeth.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224199961U_ABST
    Figure CN224199961U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of excavator structures, in particular to an excavator bucket tooth structure which comprises a bucket tooth assembly, the bucket tooth assembly comprises teeth, a connecting plate and a connecting block, one end of each tooth is long, the thickness of each tooth is small, the other end of each tooth is thick and is fixedly connected with the connecting plate, and the connecting plate is fixedly connected with the connecting block. The connecting plate is arranged between the teeth and the connecting block, the connecting block is fixedly connected to one side of the connecting plate, a first through hole is formed in the side wall of the connecting block, the first through hole penetrates through the connecting block, and a tooth holder assembly is arranged on one side of the bucket tooth assembly. And deep holes or ditches can be easily excavated.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of excavator structure, specifically to an excavator bucket tooth structure. Background Technology

[0002] Excavators, as important engineering machinery, are widely used in many fields such as construction, road construction, mining, and water conservancy projects. In these operations, excavators need to use their buckets to excavate, load, and transport various materials, such as soil, rocks, and ores. The bucket teeth, located at the front of the bucket, are the components that directly contact the materials, and their performance and structure have a crucial impact on the excavator's working efficiency and operational effectiveness.

[0003] In existing technologies, most excavator bucket teeth are typically fitted onto a tooth base and then secured with screws or expansion bolts. Common bucket teeth are also typically short and thick to ensure they are not easily damaged during excavation.

[0004] However, these bucket teeth can only dig basic road surfaces and holes; digging deeper holes and ditches would be quite difficult. Utility Model Content

[0005] The purpose of this invention is to provide an excavator bucket tooth structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an excavator bucket tooth structure, comprising: a bucket tooth assembly, the bucket tooth assembly including teeth, a connecting plate and a connecting block, one end of the teeth being longer and thinner, the other end of the teeth being thicker and fixedly connected to the connecting plate, the connecting plate being disposed between the teeth and the connecting block, the connecting block being fixedly connected to one side of the connecting plate, the side wall of the connecting block having a first through hole penetrating the connecting block, and a tooth seat assembly being disposed on one side of the bucket tooth assembly.

[0007] Preferably, the toothed assembly includes a fixing block, a first mounting plate, and a second mounting plate. The fixing block is disposed on one side of the connecting plate, the first mounting plate is fixedly connected to one side of the fixing block, the second mounting plate is fixedly connected to one side of the fixing block, and the first mounting plate is disposed above the second mounting plate.

[0008] Preferably, a slot is provided on one side of the fixing block, and the connecting block extends into the slot and engages with it.

[0009] Preferably, the two side walls of the card slot are provided with second through holes, the two second through holes are aligned with the first through hole, an expansion component is provided in the first through hole, a third through hole is provided in the card slot, the third through hole penetrates one side of the card slot, and a first groove is provided on both the first mounting plate and the second mounting plate.

[0010] Preferably, the expansion assembly includes screws and a fixed shaft. The fixed shaft is disposed in and slidably connected to the first through hole. Both ends of the fixed shaft are provided with cylindrical grooves, and screws are disposed in both cylindrical grooves.

[0011] Preferably, each of the cylindrical grooves has a threaded groove, and an elastic plate is fixedly connected to the side wall of each cylindrical groove.

[0012] Preferably, the screw includes a threaded head and an expansion cap. The threaded head extends into the threaded groove and is threadedly connected thereto. The expansion cap is fixedly connected to one end of the threaded head, and a cross groove is formed on one end of the expansion cap.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The bucket tooth assembly proposed in this utility model has flat and long teeth, which effectively enables excavators equipped with these bucket teeth to easily excavate deeper holes or ditches. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a three-dimensional structural schematic diagram of the toothed seat assembly of this utility model;

[0017] Figure 3 This is a three-dimensional structural schematic diagram of the bucket tooth assembly of this utility model;

[0018] Figure 4 This is a schematic diagram of the disassembled structure of the expansion component of this utility model.

[0019] In the diagram: 1. Tooth seat assembly; 2. Bucket tooth assembly; 3. Expansion assembly; 4. Tooth; 5. Connecting plate; 6. Connecting block; 7. First through hole; 8. First mounting plate; 9. Second mounting plate; 10. First groove; 11. Second through hole; 12. Slot; 13. Third through hole; 14. Fixed shaft; 15. Cylindrical groove; 16. Threaded groove; 17. Elastic plate; 18. Threaded head; 19. Expansion cap; 20. Cross groove; 21. Screw; 22. Fixing block. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Example 1

[0022] Please see Figures 1-3 This utility model provides a technical solution: an excavator bucket tooth structure, including: a bucket tooth assembly 2, the bucket tooth assembly 2 including teeth 4, a connecting plate 5 and a connecting block 6, one end of the teeth 4 is longer and thinner, the teeth 4 is used to dig things at greater depths, so it must be thin and long, the other end of the teeth 4 is thicker and is fixedly connected to the connecting plate 5, the thicker other end of the teeth 4 is to ensure a more secure connection, the connecting plate 5 is disposed between the teeth 4 and the connecting block 6, the connecting plate 5 serves as a support, the connecting block 6 is fixedly connected to one side of the connecting plate 5, the bottom of the connecting block 6 is set as an inclined surface, the side wall of the connecting block 6 has a first through hole 7, the first through hole 7 penetrates the connecting block 6, the connecting block 6 is used to connect the bucket tooth assembly 2 to the tooth seat, one side of the bucket tooth assembly 2 is provided with a tooth seat assembly 1, the tooth seat assembly is used to connect the bucket teeth and the bucket.

[0023] In actual use, the tooth assembly 2 and the tooth seat assembly 1 are connected together by the connecting block 6 and the fixing block 22, and can be replaced as needed.

[0024] Example 2

[0025] Please see Figures 1-2 Based on Embodiment 1, the gear assembly 1 includes a fixing block 22, a first mounting plate 8, and a second mounting plate 9. The fixing block 22 is disposed on one side of the connecting plate 5 and is sleeved on the connecting block 6. The first mounting plate 8 is fixedly connected to one side of the fixing block 22 and is disposed at the bottom of one side of the fixing block 22. The second mounting plate 9 is fixedly connected to one side of the fixing block 22 and is disposed at the top of one side of the fixing block 22. The first mounting plate 8 is disposed above the second mounting plate 9, and the length of the first mounting plate 8 is much longer than the length of the second mounting plate 9. A slot 12 is provided on one side of the fixing block 22, and the bottom of the slot 12 is also set as an inclined surface. The slot 12 is adapted to the connecting block 6, and the connecting block 6 extends into the slot 12 and engages with it.

[0026] The slot 12 has two side walls with second through holes 11. The side walls of the second through holes 11 are set as inclined rings. The two second through holes 11 are aligned with the first through hole 7. Each second through hole 11 penetrates the side wall of the slot 12. An expansion component 3 is provided in the first through hole 7. The expansion component 3 passes through the second through hole 11 and is slidably connected to it. The slot 12 has a third through hole 13. The third through hole 13 is used to fix the fixing block 22 and the bucket. The third through hole 13 penetrates one side of the slot 12. The third through hole 13 penetrates the inclined surface laterally. The third through hole 13 is located between the first mounting plate 8 and the second mounting plate 9. The first mounting plate 8 and the second mounting plate 9 each have a first groove 10. The two first grooves 10 are arranged opposite each other.

[0027] In actual use, the fixing block 22 needs to be installed on the bucket through the third through hole 13. At this time, the first mounting plate 8 is set on the inner surface of the bottom of the bucket, and the second mounting plate 9 is set on the outer surface of the bottom of the bucket. Then, the bucket tooth assembly 2 is installed by using the expansion component 3 to extend into the second through hole 11 and the third through hole 13.

[0028] Example 3

[0029] Please see Figure 4 Based on Embodiment 2, the expansion assembly 3 includes screws 21 and a fixed shaft 14. The fixed shaft 14 is disposed in and slidably connected to the first through hole 7. Both ends of the fixed shaft 14 are respectively disposed in and slidably connected to the two second through holes 11. Each end of the fixed shaft 14 has a cylindrical groove 15 for engaging during expansion. Screws 21 are disposed in both cylindrical grooves 15, and the screws 21 slowly enter the cylindrical grooves 15. Each cylindrical groove 15 has a threaded groove 16 for securing the screws 21. Each cylindrical groove 15 has an elastic plate 17 fixedly connected to its side wall. The elastic plates 17 are evenly distributed and have a certain elasticity. The screw 21 includes a threaded head 18 and an expansion cap 19. The threaded head 18 is used to fix the screw 21. The threaded head 18 extends into the threaded groove 16 and is threadedly connected to it. The expansion cap 19 is fixedly connected to one end of the threaded head 18. When the expansion cap 19 extends into the cylindrical groove 15, it will expand the elastic plate 17. A cross groove 20 is provided on one end of the expansion cap 19 to facilitate the installation and removal of the screw 21.

[0030] In actual use, the fixing block 22 needs to be installed on the bucket first through the third through hole 13. At this time, the first mounting plate 8 is set on the inner surface of the bottom of the bucket, and the second mounting plate 9 is set on the outer surface of the bottom of the bucket. Then, the bucket tooth assembly 2 is installed by inserting the expansion assembly 3 into the second through hole 11 and the third through hole 13. When installing the expansion assembly 3, the fixing shaft 14 is first inserted into the second through hole 11 and the first through hole 7. Then, the expansion screws 21 are installed at both ends of the fixing shaft 14. When installing the two expansion screws 21, they need to be installed together. Both sides are rotated at the same time or back and forth to allow the screws 21 at both ends to slowly enter.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bucket tooth structure for an excavator, comprising: A bucket tooth assembly (2), characterized in that: the bucket tooth assembly (2) includes teeth (4), a connecting plate (5) and a connecting block (6), one end of the teeth (4) is longer and thinner, the other end of the teeth (4) is thicker and fixedly connected to the connecting plate (5), the connecting plate (5) is disposed between the teeth (4) and the connecting block (6), the connecting block (6) is fixedly connected to one side of the connecting plate (5), a first through hole (7) is provided on the side wall of the connecting block (6), the first through hole (7) penetrates the connecting block (6), a tooth seat assembly (1) is provided on one side of the bucket tooth assembly (2), the tooth seat assembly (1) includes a fixing block (22), a first mounting plate (8) and a second mounting plate (9), the fixing block (22) is disposed on one side of the connecting plate (5), and ... tooth seat assembly (1) includes a fixing block (22), a first mounting plate (8) and a second mounting plate (9), the fixing block (22) is disposed on one side of the connecting plate (5), and the tooth seat assembly (1) includes a fixing block ( The first mounting plate (8) is fixedly connected to one side of the fixing block (22), and the second mounting plate (9) is fixedly connected to one side of the fixing block (22). The first mounting plate (8) is positioned above the second mounting plate (9). A slot (12) is provided on one side of the fixing block (22). The connecting block (6) extends into the slot (12) and engages with it. A second through hole (11) is provided on both side walls of the slot (12). The two second through holes (11) and the first through hole (7) are aligned. An expansion component (3) is provided in the first through hole (7). A third through hole (13) is provided in the slot (12). The third through hole (13) penetrates one side of the slot (12). A first groove (10) is provided on both the first mounting plate (8) and the second mounting plate (9).

2. The excavator bucket tooth structure according to claim 1, characterized in that: The expansion assembly (3) includes a screw (21) and a fixed shaft (14). The fixed shaft (14) is disposed in the first through hole (7) and slidably connected thereto. Both ends of the fixed shaft (14) are provided with cylindrical grooves (15), and screws (21) are provided in both cylindrical grooves (15).

3. The excavator bucket tooth structure according to claim 2, characterized in that: Each of the cylindrical grooves (15) is provided with a threaded groove (16), and an elastic plate (17) is fixedly connected to the side wall of each cylindrical groove (15).

4. The excavator bucket tooth structure according to claim 3, characterized in that: The screw (21) includes a threaded head (18) and an expansion cap (19). The threaded head (18) extends into the threaded groove (16) and is threadedly connected thereto. The expansion cap (19) is fixedly connected to one end of the threaded head (18). A cross groove (20) is provided on one end of the expansion cap (19).