Mud scraping plate for excavator
By designing a limiting device on the scraper blade, the problem of bolts loosening when the excavator vibrates is solved, achieving a more stable fixing effect and improving the excavator's cleaning efficiency.
Patent Information
- Application Number
- CN202423119654.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-18
AI Technical Summary
When the excavator vibrates, the bolts loosen, which reduces the fixing strength between the scraper blade and the excavator, affecting the cleaning effect.
A limiting device is designed, including a slide rail, a sliding block, a limiting plate, a locking block, a spring, and a locking hole. The sliding block moves within the slide rail and engages with the bolt and nut, limiting the position of the bolt and preventing it from loosening.
It effectively prevents bolts from loosening when the excavator vibrates, improves the fixing effect of the scraper blade on the excavator, and increases cleaning efficiency.
Smart Images

Figure CN223510399U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of scraper technology, and in particular to scrapers for excavators. Background Technology
[0002] Scrapers are typically mounted on parts of excavators and their main function is to help remove dirt, mud, or other sticky substances that adhere to the excavator.
[0003] When cleaning mud from the large turntable on the excavator, the scraper blades are bolted to the excavator body. As the excavator rotates, the mud on the large turntable is scraped off. When the excavator vibrates, the bolts on the scraper blades also vibrate, causing them to loosen and potentially affecting the strength of the fixation between the scraper blades and the excavator. Utility Model Content
[0004] This utility model addresses the problem that when an excavator vibrates, the bolts on the excavator plate also vibrate, causing them to loosen and affecting the fixing strength between the excavator plate and the excavator. The proposed excavator scraper blade is designed to solve this issue.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a scraper blade for excavators, comprising a blade body, a bolt threaded into one side of the blade body, a limiting device provided on the side of the blade body near the bolt, the limiting device comprising a slide rail, one side of the slide rail being fixedly connected to the blade body, a sliding block slidably connected to one side of the slide rail, a limiting plate fixedly connected to one side of the sliding block, the size of the limiting plate being adapted to the size of the bolt, an extension plate fixedly connected to one side of the slide rail, a locking block inserted into one side of the extension plate, one side of the locking block engaging with the sliding block, two locking holes provided on one side of the slide rail, the locking block being inserted into the locking holes on one side of the slide rail, a spring fixedly connected to one side of the locking block, and one side of the spring being fixedly connected to the extension plate.
[0006] The aforementioned components achieve the following effect: When cleaning mud from the large turntable on the excavator's surface, bolts are used to mount the scraper blade to the excavator's body. As the excavator rotates, the mud on the large turntable at the lower end of the excavator is scraped off. When using the bolts, the locking block can be moved to disengage from the sliding block. At this time, the spring on one side of the extension plate is compressed. Then, the limiting plate is moved, causing the sliding block to move inside the slide rail. The limiting plate then reaches the bolt nut to limit the bolt's position. The locking block is then released, and the spring returns to its original position, causing the locking block to pass through the locking hole on one side of the slide rail and engage with the sliding block. This completes the fixing of the limiting plate's position. By using the limiting device, the position of the bolt can be limited, preventing the bolt from shifting or loosening when the excavator vibrates. This improves the fixing effect of the blade on the excavator, thereby enhancing the scraper blade's performance.
[0007] Preferably, arc strips are fixedly connected to both sides of the sliding block, and the arc surface of the arc strips is close to the slide rail.
[0008] The effect achieved by the above components is that by using the arc strip, the contact area between the slider and the slide rail is reduced, thereby reducing the friction between the slider and the slide rail, and making it easier for the slider to move.
[0009] Preferably, a reinforcing plate is fixedly connected to one side of the sliding block, and one side of the reinforcing plate is fixedly connected to the limiting plate.
[0010] The effect achieved by the above components is to improve the connection strength between the sliding block and the limiting plate by using a reinforcing plate, thereby preventing the limiting plate from deforming under stress.
[0011] Preferably, a stabilizing rod is sleeved inside the spring, one side of the stabilizing rod is slidably connected to the extension plate, and the other side of the stabilizing rod is fixedly connected to the locking block.
[0012] The effect achieved by the above components is to limit the shape of the spring by using a stabilizer bar, thereby preventing the spring from bending and affecting its subsequent use.
[0013] Preferably, a ring is fixedly connected to one side of the card block, and the size of the ring is adapted to the size of the card block.
[0014] The effect achieved by the above-mentioned components is to increase the contact area between the card block and the operator by using a ring, making it easier for the operator to move the card block.
[0015] Preferably, an auxiliary component is provided on one side of the limiting plate. The auxiliary component includes a square tube, one side of which is fixedly connected to the limiting plate, and an auxiliary frame is inserted inside the square tube.
[0016] The effect achieved by the above components is as follows: when moving the limit plate, the auxiliary frame can be moved so that one side of the auxiliary frame is inserted into the square tube, and then the limit plate is moved by the auxiliary frame. By using the auxiliary components, the contact area between the limit plate and the operator can be increased, making it easier for the operator to move the limit plate.
[0017] Preferably, a trapezoidal block is fixedly connected to one side of the auxiliary frame, and the size of the trapezoidal block on the side away from the auxiliary frame is smaller than the size on the other side.
[0018] The effect achieved by the above components is to reduce the size of one side of the auxiliary frame by using trapezoidal blocks, making it easier to insert the square tube into the auxiliary frame.
[0019] Preferably, a rubber sleeve is fixedly connected to one side of the auxiliary frame, and the size of the rubber sleeve is adapted to the size of the auxiliary frame.
[0020] The effect achieved by the above components is to increase the friction between the auxiliary frame and the operator by using a rubber sleeve, so that the auxiliary frame can be better gripped and used.
[0021] In summary, the beneficial effects of this utility model are as follows:
[0022] By using a limiting device, the position of the bolts can be limited, preventing them from moving or loosening when the excavator vibrates. This improves the fixation of the blade on the excavator and enhances the performance of the scraper blade. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0024] Figure 2 This is a three-dimensional structural diagram of the limiting device of this utility model;
[0025] Figure 3 This utility model Figure 2 Enlarged view of point A;
[0026] Figure 4 This is a three-dimensional structural diagram of the auxiliary component of this utility model.
[0027] Legend: 1. Plate; 2. Limiting device; 21. Slide rail; 22. Sliding block; 23. Limiting plate; 24. Extension plate; 25. Locking block; 26. Locking hole; 27. Spring; 28. Arc strip; 29. Reinforcing plate; 210. Stabilizing rod; 211. Ring; 3. Auxiliary components; 31. Square tube; 32. Auxiliary frame; 33. Trapezoidal block; 34. Rubber sleeve; 4. Bolt. Detailed Implementation
[0028] Reference Figure 1-4 As shown, this embodiment discloses a scraper blade for excavators, including a blade body 1, a bolt 4 threadedly inserted on one side of the blade body 1, and a limiting device 2 provided on the side of the blade body 1 near the bolt 4.
[0029] Reference Figure 1-4 As shown, this embodiment discloses a limiting device 2 including a slide rail 21. One side of the slide rail 21 is fixedly connected to the plate 1. A sliding block 22 is slidably connected to one side of the slide rail 21. A limiting plate 23 is fixedly connected to one side of the sliding block 22. The size of the limiting plate 23 is adapted to the size of the bolt 4. An extension plate 24 is fixedly connected to one side of the slide rail 21. A locking block 25 is inserted into one side of the extension plate 24. One side of the locking block 25 engages with the sliding block 22. Two locking holes 26 are opened on one side of the slide rail 21. The locking block 25 is inserted into the locking holes 26 on one side of the slide rail 21. A spring 27 is fixedly connected to one side of the locking block 25. One side of the spring 27 is fixedly connected to the extension plate 24. When cleaning the mud on the large turntable of the excavator, the scraper plate 1 is installed on the excavator body using the bolt 4. Then, when the excavator body rotates, the mud on the large turntable at the lower end of the excavator is scraped off. When using bolt 4, the locking block 25 can be moved to disengage from the sliding block 22. At this time, the spring 27 on one side of the extension plate 24 is compressed. Then, the limiting plate 23 is moved, and the sliding block 22 moves inside the slide rail 21. Then, the limiting plate 23 reaches the nut of bolt 4 to limit the position of bolt 4. Then, the locking block 25 is released, and the spring 27 returns to its original position, so that the locking block 25 passes through the locking hole 26 on one side of the slide rail 21 and engages with the sliding block 22. Then, the position of the limiting plate 23 is fixed. By using the limiting device 2, the position of bolt 4 can be limited, so as to prevent bolt 4 from moving and loosening when the excavator vibrates. This improves the fixing effect of plate 1 on the excavator and thus improves the performance of the scraper blade.
[0030] Reference Figure 1-4As shown, this embodiment discloses that arcuate strips 28 are fixedly connected to both sides of the sliding block 22, with the arcuate surfaces of the arcuate strips 28 close to the slide rail 21. By using the arcuate strips 28, the contact area between the sliding block 22 and the slide rail 21 is reduced, thereby reducing the friction between the sliding block 22 and the slide rail 21, and making it easier for the sliding block 22 to move. A reinforcing plate 29 is fixedly connected to one side of the sliding block 22, and one side of the reinforcing plate 29 is fixedly connected to the limiting plate 23. By using the reinforcing plate 29, the connection strength between the sliding block 22 and the limiting plate 23 is improved, preventing the limiting plate 23 from deforming under force. A stabilizing rod 210 is sleeved inside the spring 27, with one side of the stabilizing rod 210 slidably connected to the extension plate 24 and the other side of the stabilizing rod 210 fixedly connected to the locking block 25. By using the stabilizing rod 210, the shape of the spring 27 is restricted, preventing the spring 27 from bending and affecting its subsequent use.
[0031] Reference Figure 1-4 As shown in the figure, this embodiment discloses an auxiliary component 3 on one side of the limiting plate 23. The auxiliary component 3 includes a square tube 31, one side of which is fixedly connected to the limiting plate 23. An auxiliary frame 32 is inserted inside the square tube 31. When moving the limiting plate 23, the auxiliary frame 32 can be moved so that one side of the auxiliary frame 32 is inserted into the square tube 31. Then, the limiting plate 23 is moved by the auxiliary frame 32. By using the auxiliary component 3, the contact area between the limiting plate 23 and the operator can be increased, making it easier for the operator to move the limiting plate 23.
[0032] Reference Figure 1-4 As shown, this embodiment discloses a trapezoidal block 33 fixedly connected to one side of the auxiliary frame 32. The size of the trapezoidal block 33 on the side away from the auxiliary frame 32 is smaller than the size on the other side. By using the trapezoidal block 33, the size of one side of the auxiliary frame 32 is reduced, making it easier for the auxiliary frame 32 to be inserted into the square tube 31. A rubber sleeve 34 is fixedly connected to one side of the auxiliary frame 32, and the size of the rubber sleeve 34 is adapted to the size of the auxiliary frame 32. By using the rubber sleeve 34, the friction between the auxiliary frame 32 and the operator is increased, making the auxiliary frame 32 easier to grip and use.
[0033] Working principle: When cleaning the mud on the large turntable on the surface of the excavator, the scraper plate 1 is installed on the body of the excavator by bolt 4. Then, when the body of the excavator rotates, the mud on the large turntable at the lower end of the excavator is scraped off. When using bolt 4, the locking block 25 can be moved to disengage from the sliding block 22. At this time, the spring 27 on one side of the extension plate 24 is compressed. Then, the limiting plate 23 is moved, and the sliding block 22 moves inside the slide rail 21. Then, the limiting plate 23 reaches the nut of bolt 4 to limit the position of bolt 4. Then, the locking block 25 is released, and the spring 27 returns to its original position, so that the locking block 25 passes through the locking hole 26 on one side of the slide rail 21 and engages with the sliding block 22. Then, the position of the limiting plate 23 is fixed. By using the limiting device 2, the position of bolt 4 can be limited, so as to prevent bolt 4 from moving and loosening when the excavator vibrates. This improves the fixing effect of plate 1 on the excavator and thus improves the performance of the scraper blade.
[0034] When moving the limit plate 23, the auxiliary frame 32 with trapezoidal block 33 and rubber sleeve 34 can be moved so that one side of the auxiliary frame 32 is inserted into the square tube 31. Then, the limit plate 23 is moved by the auxiliary frame 32. By using the auxiliary component 3, the contact area between the limit plate 23 and the operator can be increased, making it easier for the operator to move the limit plate 23.
Claims
1. A scraper blade for an excavator, comprising a blade body (1), characterized in that: A bolt (4) is threaded into one side of the plate (1). A limiting device (2) is provided on the side of the plate (1) near the bolt (4). The limiting device (2) includes a slide rail (21). One side of the slide rail (21) is fixedly connected to the plate (1). A sliding block (22) is slidably connected to one side of the slide rail (21). A limiting plate (23) is fixedly connected to one side of the sliding block (22). The size of the limiting plate (23) is adapted to the size of the bolt (4). An extension plate (24) is fixedly connected to one side of the slide rail (21). A locking block (25) is inserted into one side of the extension plate (24). One side of the locking block (25) is engaged with the sliding block (22). Two locking holes (26) are opened on one side of the slide rail (21). The locking block (25) is inserted into the locking hole (26) on one side of the slide rail (21). A spring (27) is fixedly connected to one side of the locking block (25). One side of the spring (27) is fixedly connected to the extension plate (24).
2. The excavator scraper according to claim 1, characterized in that: The sliding block (22) is fixedly connected to two sides with arc strips (28), and the arc surface of the arc strips (28) is close to the slide rail (21).
3. The excavator scraper according to claim 2, characterized in that: A reinforcing plate (29) is fixedly connected to one side of the sliding block (22), and one side of the reinforcing plate (29) is fixedly connected to the limiting plate (23).
4. The excavator scraper according to claim 3, characterized in that: A stabilizing rod (210) is fitted inside the spring (27). One side of the stabilizing rod (210) is slidably connected to the extension plate (24), and the other side of the stabilizing rod (210) is fixedly connected to the locking block (25).
5. The excavator scraper according to claim 4, characterized in that: A ring (211) is fixedly connected to one side of the card block (25), and the size of the ring (211) is adapted to the size of the card block (25).
6. The excavator scraper according to claim 5, characterized in that: An auxiliary component (3) is provided on one side of the limiting plate (23). The auxiliary component (3) includes a square tube (31). One side of the square tube (31) is fixedly connected to the limiting plate (23). An auxiliary frame (32) is inserted inside the square tube (31).
7. The excavator scraper according to claim 6, characterized in that: A trapezoidal block (33) is fixedly connected to one side of the auxiliary frame (32), and the size of the trapezoidal block (33) on the side away from the auxiliary frame (32) is smaller than the size on the other side.
8. The excavator scraper blade according to claim 7, characterized in that: A rubber sleeve (34) is fixedly connected to one side of the auxiliary frame (32), and the size of the rubber sleeve (34) is adapted to the size of the auxiliary frame (32).