A concealed locking bucket tooth

Abstract

The application belongs to the technical field of excavator accessories, and provides a hidden lock buckle bucket tooth, which comprises a plurality of tooth seats, the tooth seats are detachably connected to a lip, and a locking assembly is arranged between the tooth seats and the lip; a tooth tip is detachably connected to one end of the tooth seat away from the lip, and a hidden lock buckle is arranged on the tooth seat, and the tooth tip is detachably connected with the tooth seat through the hidden lock buckle. The bucket tooth can be conveniently and quickly replaced.

Description

Technical Field

[0001] This invention belongs to the field of excavator parts technology, and particularly relates to a concealed locking bucket tooth. Background Technology

[0002] The excavator bucket is an integral part of an excavator, and its basic function is to excavate and load soil. The bucket is usually equipped with fixed shovel teeth. Since the excavator's digging function is achieved through the bucket, the bucket comes into direct contact with the material, causing the shovel teeth to wear frequently. To reduce replacement costs, buckets with detachable shovel teeth were invented.

[0003] The existing excavator buckets have the following defects: When the excavator bucket is digging, it will encounter rocks or other hard objects in the excavation site, which can easily cause friction on the bucket teeth, resulting in wear or breakage. This requires maintenance or replacement of the damaged or severely worn bucket teeth. However, the installation and fixing requirements for the bucket teeth are quite strict, and disassembly is too complicated, which can easily lead to difficulties in disassembling and replacing them, thus affecting the performance of the excavator bucket. Summary of the Invention

[0004] The purpose of this invention is to provide a concealed locking bucket teeth to solve the above-mentioned problems and facilitate the replacement of bucket teeth.

[0005] To achieve the above objectives, the present invention provides the following solution: a concealed locking bucket tooth, comprising:

[0006] A plurality of toothed seats, wherein the plurality of said toothed seats are detachably connected to the lip edge, and a locking component is provided between said toothed seats and said lip edge;

[0007] The tooth tip is detachably connected to the tooth base at the end away from the lip edge. The tooth base is provided with a hidden latch, and the tooth tip is detachably connected to the tooth base through the hidden latch.

[0008] Preferably, the concealed latch includes a rocker latch hinged to the tooth base, wherein the tooth tip is provided with a plurality of slots, and the rocker latch is provided with a plurality of slots corresponding to the plurality of slots.

[0009] Preferably, the tooth seat includes a connecting head and a retainer, the connecting head is disposed corresponding to the tooth tip, the top of the connecting head has a downward-facing groove, and the rocker-type latch is disposed in the groove.

[0010] Preferably, the rocker-type latch includes a rocker arm, which is hinged to the groove via a pivot. A plurality of locking blocks are fixedly connected to the end of the rocker arm away from the pivot. A rocker element is provided between the end of the rocker arm away from the pivot and the locking seat. The rocker element is used to push the rocker arm so that the plurality of locking blocks are engaged in the plurality of locking slots.

[0011] Preferably, the rocker includes a first bolt threaded onto the groove, the first bolt being disposed corresponding to the end of the rocker arm near the pivot.

[0012] Preferably, the locking assembly includes a boss fixedly connected to the lip edge, the boss being disposed near the toothed seat, and a snap-fit ​​member being disposed inside the toothed seat, the snap-fit ​​member being disposed corresponding to the boss.

[0013] Preferably, the snap-fit ​​component includes a baffle-type snap fastener and a through groove formed on the top of the connecting head. One end of the baffle-type snap fastener passes through the through groove and is fitted against the side of the boss away from the card seat. The other end of the baffle-type snap fastener is fixedly connected to the card seat by a second bolt.

[0014] Preferably, the top of the tooth tip is composed of a horizontal tooth tip surface, an inclined surface, two sets of lateral tilting surfaces, and two sets of tooth tip side surfaces. The horizontal tooth tip surface, the inclined surface, and the tooth tip side surfaces are quadrilaterals, and the lateral tilting surfaces are triangular. The horizontal tooth tip surface and the tooth tip side surfaces are located close to the tooth base, and the two opposite sides of the horizontal tooth tip surface are respectively connected to the side edges of the two sets of tooth tip side surfaces. The sides of the horizontal tooth tip surface and the tooth tip side surfaces away from the tooth base are respectively connected to the inclined surface and the lateral tilting surface. The two opposite sides of the inclined surface are respectively connected to the side of the lateral tilting surface.

[0015] Preferably, the angle between the horizontal plane of the tooth tip and the inclined plane is 30 degrees, the angle between the inclined plane and the lateral tilting plane is 60 degrees, and the angle between the lateral tilting plane and the side surface of the tooth tip is 30 degrees.

[0016] Compared with existing technologies, this invention has the following advantages and technical effects: the main function of the lip is to connect the tooth seat; the main function of the tooth seat is to connect the tooth tip; the main function of the locking assembly is to quickly connect the tooth seat to the lip, while facilitating the disassembly and replacement of the tooth seat on the lip; the main function of the concealed latch is to quickly connect the tooth tip to the tooth seat. Overall, this invention uses a rocker-type latch and a slot for locking, achieving quick locking or unlocking operations, eliminating the traditional need to align the threaded hole of the tooth tip with the threaded hole of the tooth seat, making it easy to disassemble and replace the bucket teeth. Simultaneously, the locking assembly enables the disassembly of the tooth seat and the lip, facilitating tooth seat replacement and further reducing the operating cost of the bucket. Furthermore, the bucket teeth on the excavator bucket have a large contact surface with the excavation site, making them prone to deformation. The required digging force also needs to be increased, leading to increased wear and tear on the excavator bucket and reduced bucket durability. The quick replacement of the bucket teeth improves the durability of the excavator bucket. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the bucket teeth of the present invention;

[0019] Figure 2 This is a side view of the bucket teeth of the present invention;

[0020] Figure 3 This is a cross-sectional view of the bucket teeth of the present invention;

[0021] Figure 4 This is a schematic diagram of the tooth holder structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the lip edge of the present invention;

[0023] Figure 6 This is a schematic diagram of the baffle-type buckle of the present invention;

[0024] Figure 7 This is a schematic diagram of the rocker-type latch of the present invention;

[0025] Figure 8 This is a schematic diagram of the mold structure for the tooth tip in Embodiment 2 of the present invention;

[0026] Figure 9 This is a schematic diagram of the mold structure of the tooth holder in Embodiment 2 of the present invention;

[0027] Among them, 1. Tooth tip; 2. Tooth seat; 3. Lip edge; 4. Baffle-type buckle; 5. Rocker-type lock; 6. First bolt; 7. Second bolt; 8. Slot; 21. Connecting head; 22. Seat; 9. Groove; 10. Rocker rod; 11. Locking block; 12. Shaft; 13. Boss; 14. Through groove; 16. Tooth tip horizontal surface; 17. Inclined surface; 18. Lateral inclined surface; 19. Tooth tip side surface; 61. First threaded hole; 71. Second threaded hole; 72. Through hole. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Example 1:

[0031] Reference Figures 1-7 The present invention provides a concealed locking bucket tooth, comprising:

[0032] Several toothed seats 2 are detachably connected to the lip edge 3, and a locking component is provided between the toothed seats 2 and the lip edge 3;

[0033] Tooth tip 1 is detachably connected to the end of tooth base 2 away from lip edge 3. Tooth base 2 is provided with a hidden latch, and tooth tip 1 is detachably connected to tooth base 2 through the hidden latch.

[0034] The main function of the lip 3 is to connect the tooth seat 2; the main function of the tooth seat 2 is to connect the tooth tip 1; the main function of the locking assembly is to quickly connect the tooth seat 2 to the lip 3, and at the same time facilitate the disassembly, assembly, and replacement of the tooth seat 2 on the lip 3; the main function of the hidden latch is to quickly connect the tooth tip 1 to the tooth seat 2. Overall, this invention uses a rocker-type latch and a slot for locking, achieving quick locking or unlocking operations, eliminating the traditional operation of aligning the threaded hole of the tooth tip with the threaded hole of the tooth seat, making it easy to disassemble and replace the bucket teeth. At the same time, the locking assembly enables the disassembly of the tooth seat and the lip 3, allowing for the replacement of the tooth seat, further reducing the operating cost of the bucket. Furthermore, the bucket teeth on the excavator bucket have a large contact surface with the excavation site, making them prone to deformation, and the required digging force also needs to be increased, which increases the wear and tear on the excavator bucket, thus reducing the durability of the excavator bucket. By quickly replacing the bucket teeth, the durability of the excavator bucket can be improved.

[0035] Further optimization of the scheme: the hidden latch includes a rocker latch 5 hinged to the tooth base 2, and several slots 8 are provided in the tooth tip 1. The rocker latch 5 is correspondingly set with several slots 8.

[0036] like Figure 3 As shown, the main function of the rocker-type latch 5 is to fix the tooth tip 1 to the tooth seat 2 by inserting it into the slot 8.

[0037] The design is further optimized. The tooth base 2 includes a connecting head 21 and a retainer 22. The connecting head 21 is set to correspond with the tooth tip 1, and the retainer 22 is set to correspond with the lip edge 3. The top of the connecting head has a downward groove 9, and the rocker-type latch 5 is set in the groove 9.

[0038] like Figure 3 and Figure 4 As shown, the tooth tip 1 has an inward cavity on the side near the connecting head 21, and the connecting head 21 is adapted to the cavity. The card holder 22 has an inward opening on the side near the lip edge 3, and the edge of the lip edge 3 is adapted to the opening.

[0039] The scheme is further optimized. The rocker-type latch 5 includes a rocker arm 10. The rocker arm 10 is hinged in the groove 9 through a pivot 12. A number of locking blocks 11 are fixedly connected to the end of the rocker arm 10 away from the pivot 12. A rocker element is provided between the end of the rocker arm 10 away from the pivot 12 and the locking seat 22. The rocker element is used to push the rocker arm 10 so that the locking blocks 11 are locked into the locking slots 8.

[0040] The scheme is further optimized so that the rocker includes a first bolt 6 threadedly connected above the groove 9, and the first bolt 6 is set corresponding to the end of the rocker arm 10 near the rotating shaft 12.

[0041] like Figure 3 , Figure 4 and Figure 7 As shown, the card holder 22 has a first threaded hole 61, which communicates with the groove 9. The first bolt 6 is threaded into the first threaded hole 61, and the protruding end of the first bolt 6 abuts against the end of the rocker arm 10 away from the card block 11. When the first bolt 6 is not connected in the first threaded hole 61, because the card block 11 is set away from the rotating shaft 12, the end of the rocker arm 10 that fixes the card block 11 is at a low position under the action of gravity. After the connecting head 21 is inserted into the cavity of the tooth tip 1, the first bolt 6 is tightened into the first threaded hole 61. During the process of tightening the first bolt 6, the first bolt 6 pushes the rocker arm 10, lifting the end of the rocker arm 10 connected to the card block 11, so that the card block 11 extends into the card groove 8, thereby fixing the tooth tip 1 and the tooth seat 2.

[0042] The solution is further optimized. The locking component includes a boss 13 fixedly connected to the lip edge 3. The boss 13 is located near the tooth seat 2. A snap-fit ​​component is provided inside the tooth seat 2. The snap-fit ​​component is correspondingly set with the boss 13.

[0043] The design is further optimized. The snap-fit ​​component includes a baffle-type snap-fit ​​4 and a through groove 14 opened on the top of the connecting head 21. One end of the baffle-type snap-fit ​​4 passes through the through groove 14 and fits against the side of the boss 13 away from the card seat 22. The other end of the baffle-type snap-fit ​​4 is fixedly connected to the card seat 22 by a second bolt 7.

[0044] like Figures 3-6 As shown, the baffle-type buckle 4 is L-shaped. The side wall of the through groove 14 is provided with a second threaded hole 71. One end of the baffle-type buckle 4 is provided with a through hole 72. The end of the baffle-type buckle 4 away from the through hole 72 is inserted downward into the through groove 14 and the through hole 72 is aligned with the second threaded hole 71. Then, the second bolt 7 is passed through the through hole 72 and connected to the second threaded hole 71 to realize the connection between the baffle-type buckle 4 and the buckle seat 22.

[0045] The baffle-type buckle slides the lip edge 3 into the opening of the tooth seat 2. Then, the baffle-type buckle 4 is inserted into the through groove 14 so that the baffle-type buckle 4 fits against the side of the boss 13 away from the seat 22, thereby ensuring that the seat 22 will not slip off the lip edge 3. Then, the baffle-type buckle 4 is fixedly connected to the seat 22 using the second bolt 7, thus realizing the connection between the tooth seat 2 and the lip edge 3.

[0046] The design has been further optimized by installing spring washers between the first bolt 6 and the first threaded hole 61, and between the second bolt 7 and the second threaded hole 71, to prevent loosening and ensure the effectiveness of the connection between the first bolt 6 and the second bolt 7 during the use of the bucket.

[0047] In a further optimized design, the top of the tooth tip 1 is composed of a horizontal tooth tip surface 16, an inclined surface 17, two sets of lateral inclined surfaces 18, and two sets of tooth tip side surfaces 19. The horizontal tooth tip surface 16, the inclined surface 17, and the tooth tip side surfaces 19 are quadrilaterals, and the lateral inclined surfaces 18 are triangular. The horizontal tooth tip surface 16 and the tooth tip side surfaces 19 are located close to the tooth base 2, and the two opposite sides of the horizontal tooth tip surface 16 are respectively connected to the sides of the two sets of tooth tip side surfaces 19. The sides of the horizontal tooth tip surface 16 and the tooth tip side surfaces 19 away from the tooth base 2 are respectively connected to the inclined surface 17 and the lateral inclined surfaces 18, and the two opposite sides of the inclined surface 17 are respectively connected to the sides of the lateral inclined surfaces 18.

[0048] Further optimization of the scheme: the angle between the horizontal plane 16 of the tooth tip and the inclined plane 17 is 30 degrees, the angle between the inclined plane 17 and the lateral inclined plane 18 is 60 degrees, and the angle between the lateral inclined plane 18 and the side surface of the tooth tip 19 is 30 degrees.

[0049] like Figure 1As shown, the tooth tip 1 of the present invention adopts a multi-triangular cross section, which increases the flexibility angle of the tooth tip 1 and improves the dynamic load buffering performance, and improves the service life of the baffle-type buckle 4 and the rocker-type lock 5, thereby effectively reducing the usage cost of the tooth tip 1.

[0050] To further optimize the design, resin dust covers (not shown in the figure) are installed on the first threaded hole 61 and the second threaded hole 71 respectively to protect the first bolt 6 and the second bolt 7, reducing the scratches and wear caused by sand and gravel on the bolts.

[0051] Example 2:

[0052] like Figure 8 and Figure 9 The diagram shown is a schematic representation of a mold structure for a tooth tip 1 and a tooth base 2 according to an embodiment. Utilizing... Figure 8 and Figure 9 The mold used in the process employs wax casting to produce the tooth tip 1 and tooth base 2. The production process includes the following steps:

[0053] 1. Wax molding: Press wax material into the cavity of a metal mold, cool and remove it to form a wax model;

[0054] 2. Assembling a tree: Several wax models are welded onto a wax casting system to form a wax model assembly;

[0055] 3. Dipping: Immerse the wax model in a slurry made of water glass and quartz powder;

[0056] 4. Hardening shell: Place the wax model into the hardening agent for hardening and repeat several times;

[0057] 5. Wax melting and shell making: The wax mold with a hard shell is heated, so that the wax melts and flows out from the gate to form a casting cavity;

[0058] 6. Melting and casting: The molten metal is poured into the mold shell to form a casting blank;

[0059] 7. Cleaning the mold shell: After the poured product has cooled sufficiently, use a manual hammer or a vibratory shell-removing machine to separate the mold shell from the casting. Finally, separate the casting product of the mold by cutting to obtain the desired casting.

[0060] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0061] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A concealed locking bucket tooth, characterized in that, include: A plurality of toothed seats (2), wherein the plurality of toothed seats (2) are detachably connected to the lip edge (3), and a locking component is provided between the toothed seats (2) and the lip edge (3); Tooth tip (1), the tooth tip (1) is detachably connected to the end of the tooth seat (2) away from the lip edge (3), the tooth seat (2) is provided with a hidden latch, and the tooth tip (1) is detachably connected to the tooth seat (2) through the hidden latch; The concealed latch includes a rocker latch (5) hinged to the tooth base (2), and a plurality of slots (8) are provided in the tooth tip (1), with the rocker latch (5) corresponding to the plurality of slots (8); The tooth seat (2) includes a connecting head (21) and a card seat (22). The connecting head (21) is correspondingly provided with the tooth tip (1). The top of the connecting head is provided with a groove (9) facing downwards. The rocker latch (5) is provided in the groove (9). The rocker latch (5) includes a rocker arm (10), which is hinged in the groove (9) via a pivot (12). A plurality of locking blocks (11) are fixedly connected to one end of the rocker arm (10) away from the pivot (12). A rocker element is provided between the other end of the rocker arm (10) away from the pivot (12) and the locking seat (22). The rocker element is used to push the rocker arm (10) so that the plurality of locking blocks (11) are locked into the plurality of locking slots (8). The rocker includes a first bolt (6) threadedly connected above the groove (9), and the first bolt (6) is disposed corresponding to one end of the rocker arm (10) near the rotating shaft (12); The locking assembly includes a boss (13) fixedly connected to the lip edge (3), the boss (13) being disposed close to the tooth seat (2), and a snap-fit ​​member being disposed inside the tooth seat (2), the snap-fit ​​member being disposed corresponding to the boss (13); The snap-fit ​​component includes a baffle-type snap-fit ​​(4) and a through groove (14) formed on the top of the connecting head (21). One end of the baffle-type snap-fit ​​(4) passes through the through groove (14) and is fitted against the side of the boss (13) away from the card seat (22). The other end of the baffle-type snap-fit ​​(4) is fixedly connected to the card seat (22) by a second bolt (7).

2. The concealed locking bucket teeth according to claim 1, characterized in that: The top of the tooth tip (1) is composed of a tooth tip horizontal surface (16), an inclined surface (17), two sets of lateral inclined surfaces (18), and two sets of tooth tip side surfaces (19). The tooth tip horizontal surface (16), the inclined surface (17), and the tooth tip side surfaces (19) are quadrilaterals, and the lateral inclined surfaces (18) are triangular. The tooth tip horizontal surface (16) and the tooth tip side surfaces (19) are located close to the tooth base (2), and the two opposite sides of the tooth tip horizontal surface (16) are respectively connected to the sides of the two sets of tooth tip side surfaces (19). The sides of the tooth tip horizontal surface (16) and the tooth tip side surfaces (19) away from the tooth base (2) are respectively connected to the inclined surface (17) and the lateral inclined surfaces (18), and the two opposite sides of the inclined surface (17) are respectively connected to the sides of the lateral inclined surfaces (18).

3. The concealed locking bucket teeth according to claim 2, characterized in that: The angle between the horizontal plane (16) of the tooth tip and the inclined plane (17) is 30 degrees, the angle between the inclined plane (17) and the lateral inclined plane (18) is 60 degrees, and the angle between the lateral inclined plane (18) and the side surface of the tooth tip (19) is 30 degrees.

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