Multifunctional scraper knife of bulldozer
By utilizing the blade holder, blade support angle, blade teeth, and guard tooth structure of the multi-functional bulldozer blade, the problem of poor separation effect when separating branches and soil by traditional blades has been solved. This achieves efficient separation of branches and soil and protection of the blade, thereby improving the working efficiency of the blade.
Patent Information
- Application Number
- CN202520078373.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-14
AI Technical Summary
Traditional bulldozer blades are ineffective at separating materials such as branches, sticks, and crop stalks when pushing and shoveling, making it difficult to meet users' material separation needs. This is especially true in forest farms and farms where the separation of branches from soil is poor. Small branches or stones can easily pass through the gaps between the blade teeth, resulting in incomplete separation.
A multi-functional bulldozer blade was designed, which adopts a blade holder, blade support, blade teeth, and a stop tooth structure. The blade is connected by a pin sleeve to separate branches from the soil. The detachable connection between the blade support and the blade teeth increases the cutting force. The stop tooth allows for secondary separation. The blade holder increases the field of vision and connection strength.
It improves the efficiency of separating branches from soil, protects the shovel's support corner, reduces wear, enhances the shovel's cutting force, achieves secondary separation of small stones and branches, and improves the shovel's performance.
Smart Images

Figure CN223893443U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bulldozer blade technology, and in particular to a multi-functional bulldozer blade. Background Technology
[0002] Traditional bulldozer blades are suitable for pushing materials such as soil, ore, and coal. During operation, the blade pushes away or gathers the material in front of it. This type of blade is highly efficient when pushing away all the material in front of it.
[0003] However, when pushing soil on surfaces mixed with a large amount of scattered branches, sticks, and crop stalks, traditional shovel blades are ineffective at separating the soil and branches, often pushing them together. This results in a large amount of impurities mixed in with the collected material, failing to meet users' needs for material separation. This is especially true in large forest farms and ranches, where a large amount of branches and stalks remain after harvesting trees and crops, and the traditional shovel blade structure struggles to separate branches from the soil during pushing.
[0004] When shoveling branches or stones, small pieces of branches and stones can easily pass through the gaps between the fixed teeth on the shovel blade, resulting in poor separation and the inability to separate them a second time. When the density of the shovel teeth is high, long branches or large stones can easily block the gaps between the shovel teeth, preventing the soil from passing through and also resulting in poor separation. Utility Model Content
[0005] To address the aforementioned shortcomings, the purpose of this utility model is to provide a multi-functional bulldozer blade that can push and shovel soil, as well as separate rod-shaped materials such as branches and straw from other materials. The blade support angles facilitate the separation of branches from soil, while the blade teeth protect the support angles and increase the cutting force during operation. The pin sleeve connection between the blade teeth and the support angles allows for easy replacement of the blade teeth. The stop teeth reduce the gap between the blade support angles, and during operation, the reduced tooth gap allows for secondary separation of stones or branches that were missed during the initial separation.
[0006] To achieve the above objectives, this utility model provides a multi-functional bulldozer blade, including a blade holder with several mounting holes; an arc-shaped plate is fixedly installed in each mounting hole; several blade support corners are provided below the blade holder; blade teeth are sleeved on the outside of each blade support corner; the blade support corners and blade teeth are connected by pin sleeves; several first brackets are fixedly connected to the back of the blade holder.
[0007] According to the multi-functional bulldozer blade of this utility model, the blade holder has idle holes on both sides to increase the field of vision.
[0008] According to the present invention, a multi-functional bulldozer blade has an extension plate fixedly connected above the blade holder.
[0009] According to the multi-functional bulldozer blade of this utility model, a second bracket is fixedly connected to the middle position of the back of the blade holder; the second bracket is fixedly connected to a U-shaped frame; the first bracket is hinged to the U-shaped frame through a support rod.
[0010] According to the present invention, a multi-functional bulldozer blade is provided with a fixed plate rotatably connected to the bottom of the blade holder; a plurality of evenly distributed stop teeth are fixedly connected to the bottom of the fixed plate; the stop teeth are provided with a support portion that abuts against the bottom surface of the blade holder; stop teeth are provided between each pair of blade support corners; and the blade holder is provided with a plurality of limiting devices that restrict the rotation of the fixed plate.
[0011] According to the multi-functional bulldozer blade of this utility model, the rotating rod of the limiting device is located in the placement hole on the side of the fixed plate; a stop block that cooperates with the placement hole is provided at the bottom of the rotating rod; a compression spring for the retraction of the rotating rod is provided inside the placement hole; one end of the connecting rod is fixedly connected to the top of the rotating rod, and the other end of the connecting rod is fixedly connected to the limiting rod; the rotating rod, the connecting rod, and the limiting rod together form a U-shape; the blade holder is provided with two limiting holes that cooperate with the limiting rod.
[0012] According to the multi-functional bulldozer blade of this utility model, the limiting device is provided in two sets; the two sets of limiting devices are respectively symmetrically arranged on both sides of the fixed plate.
[0013] This utility model provides a multi-functional bulldozer blade, including a blade holder. The blade holder, acting as the blade's skeleton, strengthens the blade's structure and facilitates easy connection to an arc-shaped plate. The blade holder has several mounting holes, providing space for the arc-shaped plate and allowing for its secure installation. An arc-shaped plate is fixedly installed in each mounting hole, preventing soil and other materials from entering the rear of the blade holder and facilitating the pushing of dispersed materials. Several blade support angles are located below the blade holder, providing support for the blade teeth. The blade tip provides installation space, facilitating the mounting and fixing of the blade tip onto the blade support. Blade tips are fitted onto the outside of the blade support, protecting it and reducing damage. The combination of the blade support and the blade tips facilitates the separation of soil and branches. The blade support and blade tips are connected by pin sleeves, which are easy to remove, reducing the time required to replace the blade tips. Several first brackets are fixedly connected to the back of the blade holder, allowing for easy connection of the blade to drive components on the bulldozer, such as the hydraulic lifting cylinder. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 yes Figure 1 Schematic diagram of Part A;
[0016] Figure 3 yes Figure 1 A schematic diagram of the structure of part B;
[0017] Figure 4 This is a sectional view of the limiting device structure;
[0018] Figure 5 This is a structural diagram of the fixing plate and the stop teeth;
[0019] Figure 6 This is a schematic diagram of the structure of this utility model from another perspective;
[0020] Figure 7 This is a schematic diagram of the structure of this utility model after the U-shaped frame is installed;
[0021] Figure 8 This is a schematic diagram of the working state of this utility model when pushing tree branches;
[0022] In the diagram: 1-shovel holder, 2-arc plate, 3-unused hole, 4-heightening plate, 5-first bracket, 6-fixing plate, 7-shovel tooth tip, 8-stop tooth, 9-second bracket, 10-shovel support angle, 11-pin sleeve, 12-limiting hole, 13-connecting rod, 14-limiting rod, 15-rotating rod, 16-compression spring, 17-U-shaped frame, 18-support rod, 19-tree branch, 20-soil. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.
[0024] See Figure 1 , Figure 2 , Figure 6This utility model provides a multi-functional bulldozer blade. The multi-functional bulldozer blade includes a blade holder 1 with several mounting holes concentrated in the center. An arc-shaped plate 2 is fixedly installed in each mounting hole. The blade holder 1 facilitates the installation of the arc-shaped plate 2, providing stable support. The arc-shaped plate 2 acts as a soil retainer, preventing soil 20 from passing through the blade holder 1. Several blade support angles 10 are provided below the blade holder 1. The blade support angles 10 facilitate the separation of branches 19 from soil 20 and also facilitate the installation of blade teeth 7. Blade teeth 7 are fitted over the outside of each blade support angle 10, protecting the blade support angle 10, reducing wear, and increasing the cutting force of the blade during operation. The blade support 10 and the blade tooth tip 7 are connected by a pin sleeve 11. The pin sleeve 11 facilitates the disassembly and reassembly of the blade tooth tip 7. When installing the blade tooth tip 7, simply place it on the blade support 10, align the mounting holes of the pin sleeve 11, and insert the pin sleeve 11 into the mounting holes. The disassembly and installation of the blade tooth tip 7 are similar. Several first brackets 5 are fixedly connected to the back of the blade holder 1. The first brackets 5 facilitate connection with the hydraulic lifting cylinder on the bulldozer, enabling the blade holder 1 to complete different working processes under the drive of the hydraulic lifting cylinder.
[0025] See Figure 1 , Figure 3 , Figure 5 , Figure 7 , Figure 8 Furthermore, the blade holder 1 of this utility model is provided with idle holes 3 on both sides to increase the driver's field of vision. The idle holes 3 can increase the driver's field of vision and make it easier for the driver to observe the working status of the bulldozer. When necessary, an arc plate 2 can be welded into the hole to enhance the bulldozing effect. A heightening plate 4 is fixedly connected to the top of the blade holder 1. The heightening plate 4 can prevent branches 19, soil 20 and other materials from crossing the top of the blade holder 1 and entering the rear of the blade holder 1. A second bracket 9 is fixedly connected to the middle of the back of the blade holder 1. The second bracket 9 is fixedly connected to a U-shaped frame 17. The first bracket 5 is hinged to the U-shaped frame 17 through a support rod 18. The U-shaped frame 17 is hinged to the lifting cylinder on the bulldozer to facilitate the lifting of the blade holder 1. The support rod 18 can strengthen the connection between the blade holder 1 and the U-shaped frame 17. A fixed plate 6 is rotatably connected to the bottom of the shovel frame 1. Several evenly distributed stop teeth 8 are fixedly connected to the bottom of the fixed plate 6. Each stop tooth 8 has a support portion that abuts against the bottom surface of the shovel frame 1. Stop teeth 8 are provided between each pair of shovel support corners 10. The shovel frame 1 is equipped with several limiting devices to restrict the rotation of the fixed plate 6. The support portion provides support when the stop teeth 8 are inserted into the ground. The limiting devices restrict the rotation of the fixed plate 6 and adjust whether the stop teeth 8 participate in the separation process.
[0026] See Figure 1 , Figure 3 , Figure 4 Furthermore, the rotating rod 15 of the limiting device of this utility model is located in the placement hole on the side of the fixed plate 6. A stop block that cooperates with the placement hole is provided at the bottom of the rotating rod 15. A compression spring 16 for the retraction of the rotating rod 15 is provided inside the placement hole. One end of the connecting rod 13 is fixedly connected to the top of the rotating rod 15, and the other end of the connecting rod 13 is fixedly connected to the limiting rod 14. The rotating rod 15, the connecting rod 13, and the limiting rod 14 together form a U-shape. The shovel holder 1 is provided with two limiting holes 12 that cooperate with the limiting rod 14. The rotating rod 15 of the limiting device is located in the placement hole on the side of the fixed plate 6. A stop block that mates with the placement hole is provided at the bottom of the rotating rod 15. A compression spring 16 for retracting the rotating rod 15 is installed inside the placement hole. One end of the connecting rod 13 is fixedly connected to the top of the rotating rod 15, and the other end of the connecting rod 13 is fixedly connected to the limiting rod 14. The rotating rod 15, connecting rod 13, and limiting rod 14 together form a U-shape. The scraper holder 1 has two limiting holes 12 that mate with the limiting rods 14. After pulling the two limiting rods 14 out of the two upper limiting holes 12, the fixed plate 6 is rotated to the designated position, and then the two limiting rods 14 are inserted into the two lower limiting holes 12, completing the limiting of the fixed plate 6 from idle to working state. The reverse is also true. The compression spring 16 prevents the limiting rods 14 from disengaging from the limiting holes 12. Two sets of limiting devices are provided, symmetrically arranged on both sides of the fixed plate 6.
[0027] Operating principle: The tip of the shovel tooth 7 pushes the rod-shaped or block-shaped material forward, while other loose materials such as soil 20 flow out from the gap between the support corners, thus separating the materials; after the stop tooth 8 is rotated to the position between the tips of the shovel teeth 7 and abuts against the shovel frame 1, the limiting rod 14 is inserted into the limiting hole 12 to limit the material, reducing the gap through which the material can pass, and enabling secondary separation of stones or branches 19 left over from the first separation.
[0028] In summary, this utility model provides a multi-functional bulldozer blade, including a blade holder. The blade holder, as the skeleton of the blade, strengthens the blade's structural strength and facilitates easy fixing to an arc-shaped plate. The blade holder has several mounting holes, providing installation space for the arc-shaped plate and facilitating its fixed installation. An arc-shaped plate is fixedly installed in each mounting hole, preventing soil and other materials from entering behind the blade holder and facilitating the pushing of relatively dispersed materials. Several blade support angles are located below the blade holder, providing support for... The blade teeth provide installation space, facilitating their mounting and fixation onto the blade support. Blade teeth are fitted onto the exterior of each blade support, protecting it and reducing damage. This combination of blade support and blade teeth facilitates the separation of soil and branches. A pin sleeve connects the blade support and blade teeth, allowing for easy removal and reducing the time required to replace the blade teeth. Several first brackets are fixedly connected to the back of the blade holder, facilitating connection between the blade and drive components on the bulldozer, such as the hydraulic lifting cylinder.
[0029] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.
Claims
1. A multi-functional bulldozer blade, characterized in that, The device includes a shovel holder with several mounting holes; an arc-shaped plate is fixedly installed in each mounting hole; several shovel support corners are provided below the shovel holder; shovel tooth tips are sleeved on the outside of each shovel support corner; the shovel support corners and shovel tooth tips are connected by pin sleeves; and several first brackets are fixedly connected to the back of the shovel holder.
2. The multi-functional bulldozer blade according to claim 1, characterized in that, Both sides of the shovel holder are provided with unused holes to increase visibility.
3. The multi-functional bulldozer blade according to claim 1, characterized in that, An extension plate is fixedly connected above the shovel holder.
4. The multi-functional bulldozer blade according to claim 1, characterized in that, A second bracket is fixedly connected to the middle position of the back of the shovel holder; the second bracket is fixedly connected to the U-shaped frame; the first bracket is hinged to the U-shaped frame through a support rod.
5. The multi-functional bulldozer blade according to claim 1, characterized in that, A fixed plate is rotatably connected to the bottom of the shovel holder; a number of evenly distributed stop teeth are fixedly connected to the bottom of the fixed plate; the stop teeth are provided with support parts that abut against the bottom surface of the shovel holder; stop teeth are provided between each pair of shovel support corners; the shovel holder is provided with a number of limiting devices to restrict the rotation of the fixed plate.
6. The multi-functional bulldozer blade according to claim 5, characterized in that, The rotating rod of the limiting device is located in the placement hole on the side of the fixed plate; a stop block that mates with the placement hole is provided at the bottom of the rotating rod; a compression spring for the retraction of the rotating rod is provided inside the placement hole; one end of the connecting rod is fixedly connected to the top of the rotating rod, and the other end of the connecting rod is fixedly connected to the limiting rod; the rotating rod, the connecting rod, and the limiting rod together form a U-shape; the shovel holder has two limiting holes that mate with the limiting rod.
7. The multi-functional bulldozer blade according to claim 6, characterized in that, The limiting device is provided in two sets; the two sets of limiting devices are symmetrically arranged on both sides of the fixed plate.