Quick-to-replace high-strength excavator bucket tooth
By installing reinforcing covers and blocks at the connection points of excavator bucket teeth, and utilizing the design of knobs and pull ropes, quick replacement of bucket teeth and reinforced connection are achieved, solving the problem of easy breakage at the connection points and improving the service life of the bucket teeth.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI LIANFENG PRECISION CASTING CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-17
AI Technical Summary
The existing excavator bucket teeth have insufficient protection at the connection points during use, which can easily lead to breakage.
A high-strength excavator bucket tooth with quick replacement was designed. By setting a reinforcing cover and a reinforcing block at the connection of the bucket tooth, and using the cooperation of a knob and a pull rope, quick disassembly and installation can be achieved. The connection strength is enhanced by the engagement of the reinforcing groove and the reinforcing block.
It enables convenient replacement of bucket teeth and reinforces the connection points, preventing breakage at the connection points and improving service life.
Smart Images

Figure CN224133836U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of excavator component technology, and in particular to a high-strength excavator bucket tooth that can be quickly replaced. Background Technology
[0002] An excavator is an earthmoving machine used for digging up materials. It is generally used for digging soil, coal, or mud and sand, and is widely used in engineering construction. An excavator works by a digging system consisting of a bucket, a stick, and a boom. The bucket has multiple teeth for breaking the surface of the material being excavated.
[0003] Chinese Patent Publication No. CN 222632385 U discloses a conveniently replaceable excavator bucket tooth, including bucket teeth, a bucket, and bolts. The number of bucket teeth is four. A connecting plate is integrally formed on the left end of each bucket tooth. The connecting plate has a first circular hole, and a disassembly port is located on the lower left side of the inner wall of the first circular hole. This patent divides the bolt into a circular plate, a rod, and a threaded rod. The circular plate has a positioning element, and the rod has a semi-circular cross-section. The disassembly port is located on the left side of the first circular hole in the connecting plate. When a bucket tooth needs to be replaced, simply remove the positioning element, rotate the rod 90 degrees so that its cross-section perfectly aligns with the disassembly port, and then pull out the bucket tooth to be replaced to the right. There is no need to remove the entire bolt from the mounting plate, making the operation convenient and highly practical.
[0004] The existing technical solutions mentioned above have the following shortcomings: Although the technical solutions can replace the bucket teeth during use, the bucket teeth are subjected to a lot of force during use, and the protection measures at their structural connections are inconvenient, which can easily cause breakage. There is room for optimization. Therefore, it is necessary to design a high-strength excavator bucket tooth that can be replaced quickly to solve the problems mentioned above. Utility Model Content
[0005] The purpose of this invention is to provide a quick-replacement, high-strength excavator bucket tooth to solve the problem of inadequate protection of the bucket tooth connection point mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-replacement high-strength excavator bucket tooth, comprising a bucket and mounting slots, wherein the mounting slots are all located on one side of the bucket;
[0007] Each mounting slot is connected to a mounting block, and a positioning plate is fixed to one side of each mounting block. A bucket tooth body is fixed to one side of each positioning plate. A connecting groove is provided on the side of each mounting block away from the positioning plate. Positioning blocks are evenly fixed inside the mounting slot, and each positioning block is fixed to the connecting groove. Inside each positioning block, there is a receiving groove, and a rotating shaft is rotatably connected to the middle of the receiving groove. Two sets of pull ropes are connected to the outside of the rotating shaft. Locking pins are connected to both sides inside the receiving groove, and springs are fixed to the inside of each locking pin. Each locking pin penetrates the interior of the mounting block. The other side of each pull rope is connected to the locking pin. A reinforcing cover is connected to the outside of each positioning plate.
[0008] Preferably, reinforcing blocks are evenly fixed on the side of the reinforcing cover near the bucket, and reinforcing grooves are evenly provided on the side of the bucket near the reinforcing cover, with each reinforcing groove connected to a reinforcing block.
[0009] Preferably, the width of the reinforcing groove is matched with the width of the reinforcing block, and the reinforcing groove and the reinforcing block are symmetrically arranged about the central axis of the reinforcing cover.
[0010] Preferably, the width of the positioning plate is greater than the width of the bucket tooth body, and the width of the positioning plate matches the internal width of the reinforcing cover.
[0011] Preferably, the width of the positioning plate is greater than the width of the bucket tooth body, and the width of the positioning plate matches the internal width of the reinforcing cover.
[0012] Preferably, each of the positioning blocks has a knob connected to its top end, and the bottom end of each knob is fixed to the rotating shaft.
[0013] Preferably, the top of the knob is provided with a cross groove, and the interior of both the mounting block and the bucket is provided with through holes.
[0014] Compared with the prior art, the beneficial effects of this utility model are: the quick-replacement high-strength excavator bucket teeth realize the functions of easy loading and unloading and increased contact area;
[0015] When it is necessary to disassemble and replace the main body of the bucket tooth, the knob inside the through hole is turned with a tool. The knob drives the shaft to rotate, and the rotation of the shaft causes the pull ropes on both sides to wrap around the outside of the shaft and at the same time pulls the locking pin inward to separate it from the locking groove, thus removing the fixation of the main body of the bucket tooth. The operation is simple and convenient, and a single worn bucket tooth can be quickly replaced. The installation is done by reversing the operation. After the main body of the bucket tooth is inserted, the reinforcing cover is put on the outside of the connection between the main body of the bucket tooth and the bucket, so that the reinforcing block and the reinforcing groove are engaged to achieve the purpose of strengthening and fixing the connection, thereby preventing the connection from breaking and ensuring the performance of the main body of the bucket tooth. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a frontal cross-sectional view of the present invention.
[0018] Figure 2 This is a front view structural diagram of the present utility model;
[0019] Figure 3 This is a frontal cross-sectional view of the disassembled state of this utility model.
[0020] Figure 4 This is a three-dimensional structural diagram of the main body of the bucket tooth of this utility model;
[0021] Figure 5 This is a three-dimensional structural diagram of the positioning block of this utility model.
[0022] The following are the annotations in the diagram: 1. Bucket; 2. Mounting slot; 3. Reinforcing slot; 4. Reinforcing block; 5. Reinforcing cover; 6. Bucket tooth body; 7. Positioning plate; 8. Mounting block; 9. Connecting slot; 10. Locking slot; 11. Locking pin; 12. Positioning block; 13. Through hole; 14. Rotary shaft; 15. Spring; 16. Pull rope; 17. Knob; 18. Receiving slot. Detailed Implementation
[0023] 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 embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0024] Please see Figures 1-5 The present invention provides an embodiment of a quick-replacement high-strength excavator bucket tooth, including a bucket 1 and a mounting groove 2. The mounting groove 2 is provided on one side of the bucket 1, and the interior of the mounting groove 2 is connected to a mounting block 8, and a positioning plate 7 is fixed on one side of the mounting block 8.
[0025] The width of the positioning plate 7 is greater than the width of the bucket tooth body 6, and the width of the positioning plate 7 matches the internal width of the reinforcing cover 5.
[0026] Specifically, such as Figure 1 As shown, during use, the width of the positioning plate 7 is greater than the width of the bucket tooth body 6, which can serve to limit and fix the connection of the bucket tooth body 6.
[0027] One side of the positioning plate 7 is fixed with a bucket tooth body 6, and the side of the mounting block 8 away from the positioning plate 7 is provided with a connecting groove 9. The mounting groove 2 is uniformly fixed with positioning blocks 12.
[0028] The top of each positioning block 12 is connected to a knob 17, and the bottom of each knob 17 is fixed to the rotating shaft 14. The top of the knob 17 is provided with a cross groove, and the inside of the mounting block 8 and the bucket 1 is provided with a through hole 13.
[0029] Specifically, such as Figure 2 and Figure 5 As shown, the knob 17 can be easily rotated through the cross groove during use;
[0030] Furthermore, all positioning blocks 12 are fixed to the connecting grooves 9. Inside the positioning block 12, there is a receiving groove 18. A rotating shaft 14 is rotatably connected at the middle position of the receiving groove 18. Two sets of pull ropes 16 are connected to the outside of the rotating shaft 14. Locking pins 11 are connected to both sides inside the receiving groove 18. Springs 15 are fixed to the inside of the locking pins 11. The locking pins 11 penetrate the interior of the mounting block 8. The other side of the pull ropes 16 is connected to the locking pins 11. A reinforcing cover 5 is connected to the outside of the positioning plate 7.
[0031] A reinforcing block 4 is evenly fixed on the side of the reinforcing cover 5 near the bucket 1. A reinforcing groove 3 is evenly provided on the side of the bucket 1 near the reinforcing cover 5, and the reinforcing groove 3 is connected to the reinforcing block 4. The width of the reinforcing groove 3 is matched with the width of the reinforcing block 4. The reinforcing groove 3 and the reinforcing block 4 are symmetrically arranged about the central axis of the reinforcing cover 5. A locking groove 10 is provided on the inner side of the reinforcing block 4, and one end of the locking pin 11 is connected to the locking groove 10.
[0032] Specifically, such as Figure 1 As shown, during use, the reinforcing block 4 and the reinforcing groove 3 can limit and fix the reinforcing cover 5, thereby further enhancing the purpose of strengthening and fixing the connection.
[0033] Working principle: When disassembling and replacing the main body 6 of the bucket tooth, the knob 17 inside the through hole 13 is rotated by a tool. The knob 17 drives the rotating shaft 14 to rotate. The rotation of the rotating shaft 14 causes the pull ropes 16 on both sides to wrap around the outside of the rotating shaft 14 and at the same time pulls the locking pin 11 inward to separate it from the locking groove 10, thus canceling the fixation of the main body 6 of the bucket tooth. It can quickly replace a single worn bucket tooth body 6. After the bucket tooth body 6 is replaced and inserted, the reinforcing cover 5 is put on the outside of the connection between the main body 6 of the bucket tooth and the bucket 1, so that the reinforcing block 4 and the reinforcing groove 3 are engaged to achieve the purpose of strengthening and fixing the connection, thereby preventing the connection from breaking.
[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0035] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.
[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A quick-replacement high-strength excavator bucket teeth, comprising a bucket (1) and mounting slots (2), wherein the mounting slots (2) are all disposed on one side of the bucket (1); characterized in that The mounting slot (2) is connected to a mounting block (8) inside each of the mounting blocks (8), and a positioning plate (7) is fixed to one side of each mounting block (8). A bucket tooth body (6) is fixed to one side of each positioning plate (7). A connecting slot (9) is provided on the side of the mounting block (8) away from the positioning plate (7). Positioning blocks (12) are evenly fixed inside the mounting slot (2), and each positioning block (12) is fixed to the connecting slot (9). A receiving slot is provided inside the positioning block (12). (18), and a rotating shaft (14) is rotatably connected at the middle position of the receiving groove (18). Two sets of pull ropes (16) are connected to the outside of the rotating shaft (14). Locking pins (11) are connected to both sides inside the receiving groove (18), and springs (15) are fixed to the inside of the locking pins (11). The locking pins (11) penetrate the inside of the mounting block (8). The other side of the pull ropes (16) is connected to the locking pins (11). Reinforcing covers (5) are connected to the outside of the positioning plate (7).
2. A high-strength, quick-change excavator tooth according to claim 1, characterized in that: The reinforcing cover (5) has a reinforcing block (4) evenly fixed on the side near the bucket (1), and the bucket (1) has a reinforcing groove (3) evenly arranged on the side near the reinforcing cover (5), and the reinforcing groove (3) is connected to the reinforcing block (4).
3. A high-strength, quick-change excavator tooth according to claim 2, characterized in that: The width of the reinforcing groove (3) is matched with the width of the reinforcing block (4), and the reinforcing groove (3) and the reinforcing block (4) are symmetrically arranged about the central axis of the reinforcing cover (5).
4. A high-strength, quick-change excavator tooth according to claim 2, wherein: The inner side of each reinforcing block (4) is provided with a locking groove (10), and one end of each locking pin (11) is connected to the locking groove (10).
5. A high-strength, quick-change excavator tooth according to claim 1, wherein: The width of the positioning plate (7) is greater than the width of the bucket tooth body (6), and the width of the positioning plate (7) matches the internal width of the reinforcing cover (5).
6. A high-strength, quick-change excavator tooth according to claim 1, wherein: The top of each positioning block (12) is connected to a knob (17), and the bottom of each knob (17) is fixed to the rotating shaft (14).
7. A high-strength, quick-change excavator tooth according to claim 6, characterized in that: The knob (17) has a cross groove at its top, and the mounting block (8) and the bucket (1) both have through holes (13).
Citation Information
Patent Citations
Excavator bucket tooth convenient to replace
CN222632385U