A crawler scraper and its guard plate structure

Abstract

This invention relates to the field of tracked muck loaders, specifically a tracked muck loader and its protective plate structure, including a U-shaped mounting plate. The lower end of the U-shaped mounting plate has several through holes. Two limiting screws are provided on both sides of the U-shaped mounting plate. Two protective mechanisms are movably connected to the lower end of the U-shaped mounting plate. These protective mechanisms are respectively connected to a first guide cavity and a second guide cavity, both of which are located within the U-shaped mounting plate. The U-shaped mounting plate is installed to the outside of the bucket using a fixing mechanism and the limiting screws. Hydraulic oil is supplied to the first guide cavity, causing the hydraulic oil to push the protective mechanism downwards. When the protective mechanism moves downwards, one end of the pushing component extends into the second guide cavity, where the second limiting mechanism connects to the protective mechanism, preventing it from moving. The two extended protective mechanisms protect the digging teeth during rapid stone hauling.

Description

Technical Field

[0001] The invention relates to the technical field of scrapers, in particular to a crawler scraper and a guard plate structure thereof. Background Art

[0002] Crawler scraper is a heavy equipment specially used for loading, transporting and cleaning materials in mines, metallurgy, construction sites and other places. Crawler scraper is widely used in mining, open-pit mines, coal mines and other fields, especially in environments that require large-scale operations and frequent operations, with high operating efficiency and reliability.

[0003] For example, the Chinese patent with the announcement number CN213014434U discloses an adjustable guard plate structure of a scraper, including a scraper body, one end of a side surface of the scraper body is fixedly connected to a first fixed block, the other side surface of the first fixed block is fixedly connected to a first telescopic column, and the first telescopic column is internally slidably connected to a first telescopic rod.

[0004] However, the above solution has the following shortcomings: in the above patent, a guard plate is installed on the top of the crawler track for protection. By opening the valve, water is sprayed out from the nozzle through the water pipe to clean the surface of the crawler track. However, when the scraper is used in mining and stone processing, the scraper conveys the stone by scraping it into the conveyor belt inside it, and some stones are hard. When the operator scrapes the stone by quick scraping, it may cause increased wear of the shovel teeth in the scraper bucket. After long-term use, the shovel teeth may be damaged and broken. For this reason, we have introduced a crawler scraper and its guard plate structure. Summary of the invention

[0005] The object of the present invention is to provide a crawler scraper and a guard plate structure thereof to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A guard plate structure, comprising a U-shaped mounting plate, a plurality of through holes are provided in the lower end of the U-shaped mounting plate, two limit screws are provided on both sides of the U-shaped mounting plate, two guard mechanisms are movably connected in the lower end of the U-shaped mounting plate, the guard mechanisms are respectively connected with a first guide cavity and a second guide cavity, the first guide cavity and the second guide cavity are both provided in the U-shaped mounting plate, the first guide cavity and the second guide cavity are respectively connected with corresponding hydraulic connecting pipes, the hydraulic connecting pipes are fixedly installed on the upper end of the U-shaped mounting plate, the hydraulic oil is delivered to the first guide cavity so that the hydraulic oil pushes the guard mechanism to move downward, and the hydraulic oil is delivered to the second guide cavity so that the hydraulic oil pushes the guard mechanism to move upward;

[0008] A pushing assembly is provided in the protection mechanism, and a first limiting mechanism and a second limiting mechanism are respectively provided in the U-shaped mounting plate. When the protection mechanism moves downward, one end of the pushing assembly will extend into the second guide cavity, and the second limiting mechanism will be connected to the protection mechanism, so that the protection mechanism cannot move. When the hydraulic oil enters the second guide cavity, it will push the pushing assembly to move rightward, and the second limiting mechanism will cancel the limiting of the protection mechanism, while the first limiting mechanism will limit the protection mechanism after it moves upward.

[0009] An internal threaded hole is provided in one side of the U-shaped mounting plate, the internal threaded hole is connected with a plurality of through holes, and a fixing mechanism is screwed in the internal threaded hole.

[0010] Preferably, the protection mechanism comprises a T-shaped baffle, the T-shaped baffle is slidably connected in the connecting cavity, the connecting cavity is opened in the lower end of the U-shaped mounting plate, and the lower end of the T-shaped baffle extends into the external environment.

[0011] Preferably, the pushing assembly includes a push rod, which is movably connected to the T-shaped baffle, and a limiting block is sleeved on the outer side of the push rod. The limiting block is slidably connected to the limiting cavity, and the limiting cavity is opened in the T-shaped baffle. A first spring is sleeved on the outer side of the push rod, one end of the first spring is fixedly connected to the limiting block, and the other end is fixedly connected to the limiting cavity. The left end of the push rod extends into the connecting cavity and is arranged in an arc shape. A limiting hole is opened in one end of the T-shaped baffle, and the right end of the push rod extends into the limiting hole, and a second limiting mechanism is clamped in the limiting hole.

[0012] Preferably, the second limiting mechanism includes a second T-rod, one end of the second T-rod is slidably connected to the second guide cavity, the second guide cavity is opened in the U-shaped mounting plate, a second spring is fixedly connected to the second guide cavity, the other end of the second spring is fixedly connected to the second T-rod, and the second T-rod is clamped into the limiting hole at one end away from the second spring.

[0013] Preferably, the first limiting mechanism includes a first T-shaped rod, the first T-shaped rod is slidably connected to the first guide cavity, the first guide cavity is opened in the U-shaped mounting plate, a third spring is fixedly connected to the first guide cavity, the other end of the third spring is fixedly connected to the first T-shaped rod, the first T-shaped rod is arranged in an arc shape at one end away from the third spring, and is clamped in the third guide cavity, the third guide cavity is opened in one end of the T-shaped baffle, the left end of the third guide cavity extends to the upper end of the T-shaped baffle, and is aligned with the first guide cavity.

[0014] Preferably, the fixing mechanism comprises a first fixing screw and a second fixing screw, the second fixing screw is threaded into the first fixing screw, and the first fixing screw is threaded into the internal threaded hole.

[0015] Preferably, an inclined slip ring is fixedly connected to the outer side of the second fixed screw, and the inclined slip ring is slidably connected to the give-way cavity. The give-way cavity is opened in the first fixed screw, and a T-shaped fixing block is also movably connected to the give-way cavity. The T-shaped fixing block extends into the external environment away from one end of the inclined slip ring, and a return spring is sleeved on the outer side of the T-shaped fixing block, one end of the return spring is fixedly connected to the give-way cavity, and the other end is fixedly connected to the T-shaped fixing block.

[0016] In addition, in order to achieve the above-mentioned purpose, the present invention also provides a crawler scraper, including the guard plate structure and the scraper body, a mechanical arm mechanism is provided on one side of the scraper body, one end of the mechanical arm mechanism is fixedly connected to the bucket, a plurality of digging teeth are fixedly connected to the lower end of the bucket, a cross-shaped locking hole is provided in the digging teeth, and a plurality of the digging teeth are inserted into the corresponding through holes, the U-shaped mounting plate is clamped on the outside of the bucket, and the fixing mechanism passes through the plurality of cross-shaped locking holes and is screwed into the internal threaded hole.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention installs the U-shaped mounting plate to the outside of the bucket through a fixing mechanism and a limiting screw. When it is necessary to quickly pick up stones, the hydraulic oil is transported into the first guide cavity so that the hydraulic oil pushes the protective mechanism to move downward. When the protective mechanism moves downward, one end of the pushing assembly will extend into the second guide cavity, and the second limiting mechanism will be connected to the protective mechanism, so that the protective mechanism cannot move. The two extended protective mechanisms can protect the digging teeth when quickly picking up stones. After use, the hydraulic oil is transported into the second guide cavity so that the hydraulic oil pushes the protective mechanism to move upward. At the same time, the first limiting mechanism can limit the protective mechanism after it moves upward, thereby effectively avoiding increased wear of the shovel teeth when quickly picking up stones, and preventing damage and breakage of the shovel teeth after long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a schematic cross-sectional view of the U-shaped mounting plate of the present invention;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the through hole position of the present invention;

[0020] Figure 3 It is a cross-sectional structural schematic diagram of the connection relationship between the U-shaped mounting plate and the bucket of the present invention;

[0021] Figure 4 It is a cross-sectional structural schematic diagram of the connection relationship between the fixing mechanism and the bucket of the present invention;

[0022] Figure 5 This is a schematic cross-sectional view of the T-shaped baffle in the retracted state of the present invention;

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the connection relationship between the U-shaped mounting plate and the bucket of the present invention;

[0024] Figure 7 This is a schematic diagram of the bucket structure of the present invention;

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of the crawler scraper of the present invention.

[0026] In the figure: 1. U-shaped mounting plate; 2. through hole; 3. give way cavity; 4. first fixing screw; 5. second fixing screw; 6. T-shaped fixing block; 7. inclined slip ring; 8. reset spring; 9. limit screw; 10. hydraulic connecting pipe; 11. second guide cavity; 12. first guide cavity; 13. limit block; 14. limit cavity; 15. first spring; 16. T-shaped baffle; 17. limit hole; 18. third guide cavity; 19. third spring; 20. push rod; 21. first guide cavity; 22. first T-shaped rod; 23. connecting cavity; 24. bucket; 25. second guide cavity; 26. second T-shaped rod; 27. second spring; 28. digging teeth; 29. ​​cross-shaped locking hole; 30. internal threaded hole; 31. mechanical arm mechanism; 32. slag scraper body. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-8 , the present invention provides a technical solution:

[0029] Embodiment 1:

[0030] A guard plate structure comprises a U-shaped mounting plate 1, wherein a plurality of through holes 2 are provided in the lower end of the U-shaped mounting plate 1, two limit screws 9 are provided on both sides of the U-shaped mounting plate 1, and the U-shaped mounting plate 1 is fixed to the outer side of the bucket 24 by tightening the limit screws 9, and two protection mechanisms are movably connected in the lower end of the U-shaped mounting plate 1, and the protection mechanisms are respectively connected with a first guide cavity 12 and a second guide cavity 11, and the first guide cavity 12 and the second guide cavity 11 are both provided in the U-shaped mounting plate 1, and the first guide cavity 12 and the second guide cavity 11 are respectively used to guide hydraulic oil, and the first guide cavity 12 and the second guide cavity 11 are respectively connected with corresponding hydraulic connecting pipes 10, and the hydraulic connecting pipes 10 are used to connect with hydraulic equipment and convey hydraulic oil, and the hydraulic connecting pipes 10 are fixedly installed at the upper end of the U-shaped mounting plate 1, and the hydraulic oil is conveyed into the first guide cavity 12, so that the hydraulic oil pushes the protection mechanism to move downward, and the hydraulic oil is conveyed into the second guide cavity 11, so that the hydraulic oil pushes the protection mechanism to move upward;

[0031] A pushing component is provided in the protective mechanism, and a first limiting mechanism and a second limiting mechanism are respectively provided in the U-shaped mounting plate 1. When the protective mechanism moves downward, one end of the pushing component will extend into the second guide cavity 11, and the second limiting mechanism will be connected to the protective mechanism, so that the protective mechanism cannot move. When the hydraulic oil enters the second guide cavity 11, it will push the pushing component to move to the right, and the second limiting mechanism will cancel the limiting of the protective mechanism. At the same time, the first limiting mechanism will limit the protective mechanism after moving upward. When the hydraulic oil enters the first guide cavity 12 again, the first limiting mechanism will cancel the limiting of the protective mechanism. An internal threaded hole 30 is opened on one side of the U-shaped mounting plate 1, and the internal threaded hole 30 is connected to a plurality of through holes 2. A fixing mechanism is screwed in the internal threaded hole 30, and the U-shaped mounting plate 1 and the bucket 24 are installed together through the fixing mechanism.

[0032] Embodiment 2:

[0033] On the basis of Example 1, in order to enable the T-shaped baffle 16 to fall down to protect the digging teeth 28 when the stone is being picked up, the protection mechanism includes a T-shaped baffle 16, which is slidably connected to the connecting cavity 23, and the connecting cavity 23 is opened in the lower end of the U-shaped mounting plate 1, and the lower end of the T-shaped baffle 16 extends into the external environment. When the T-shaped baffle 16 is needed, the hydraulic oil is guided into the first guide cavity 12 through the hydraulic connecting pipe 10. As the hydraulic oil continues to enter the connecting cavity 23 from the first guide cavity 12, the T-shaped baffle 16 will extend downward to guide the hydraulic oil into the second guide cavity 11. After the hydraulic oil enters the connecting cavity 23 through the second guide cavity 11, the T-shaped baffle 16 will be pushed to move upward;

[0034] The pushing assembly includes a push rod 20, which is movably connected to the T-shaped baffle 16. The outer side of the push rod 20 is sleeved with a limit block 13, and the limit block 13 is slidably connected to the limit cavity 14. The limit cavity 14 is opened in the T-shaped baffle 16. The outer side of the push rod 20 is sleeved with a first spring 15, one end of the first spring 15 is fixedly connected to the limit block 13, and the other end is fixedly connected to the limit cavity 14. When the push rod 20 moves to the right, it drives the limit block 13 to move along the limit cavity 14, so that the first spring 15 is compressed, and the left end of the push rod 20 extends into the connecting cavity 23 and is arranged in an arc shape. A limit hole 17 is opened in one end of the T-shaped baffle 16, and the right end of the push rod 20 extends into the limit hole 17. A second limit mechanism is clamped in the limit hole 17;

[0035] The second limiting mechanism includes a second T-shaped rod 26, one end of which is slidably connected to the second guide cavity 25, the second guide cavity 25 is provided in the U-shaped mounting plate 1, a second spring 27 is fixedly connected to the second guide cavity 25, the other end of the second spring 27 is fixedly connected to the second T-shaped rod 26, and the end of the second T-shaped rod 26 away from the second spring 27 is clamped into the limiting hole 17, when the push rod 20 moves to the position of the second guide cavity 11, under the elastic force of the first spring 15, the arc end of the push rod 20 will extend into the second guide cavity 11, and at the same time, when the second T-shaped rod 26 moves to the position of the limiting hole 17, under the elastic force of the second spring 27, the clamping end of the second T-shaped rod 26 will be clamped into the limiting hole 17 to limit the T-shaped baffle 16;

[0036] The first limiting mechanism includes a first T-shaped rod 22, the first T-shaped rod 22 is slidably connected to the first guide cavity 21, the first guide cavity 21 is opened in the U-shaped mounting plate 1, a third spring 19 is fixedly connected to the first guide cavity 21, the other end of the third spring 19 is fixedly connected to the first T-shaped rod 22, the first T-shaped rod 22 is arranged in an arc shape away from one end of the third spring 19, and is clamped in the third guide cavity 18, the third guide cavity 18 is opened in one end of the T-shaped baffle 16, the left end of the third guide cavity 18 extends to the upper end of the T-shaped baffle 16, and is aligned with the first guide cavity 12. When the T-shaped baffle 16 needs to be used, the hydraulic oil is guided into the first guide cavity 12 through the hydraulic connecting pipe 10, and the hydraulic oil will first enter the third guide cavity 18 through the first guide cavity 12. At this time, the first T-shaped rod 22 clamped in the third guide cavity 18 will be pushed out of the third guide cavity 18;

[0037] The fixing mechanism includes a first fixing screw 4 and a second fixing screw 5, the second fixing screw 5 is screwed into the first fixing screw 4, the first fixing screw 4 is screwed into the internal threaded hole 30, the outer side of the second fixing screw 5 is fixedly connected with an inclined slip ring 7, the inclined slip ring 7 is slidably connected in the give-way cavity 3, the give-way cavity 3 is opened in the first fixing screw 4, and the give-way cavity 3 is also movably connected with a T-shaped fixing block 6, the T-shaped fixing block 6 extends into the external environment away from one end of the inclined slip ring 7, and a reset spring 8 is sleeved on the outer side of the T-shaped fixing block 6, one end of the reset spring 8 is fixedly connected to the give-way cavity 3, and the other end is fixedly connected to the T-shaped fixing block 6, and one end of the first fixing screw 4 is screwed into the internal threaded hole 30, so that the first fixing screw 4 passes through the internal threaded hole 30 and the cross-shaped locking hole 29 in sequence. When one end of the first fixing screw 4 is screwed into the bottom end of the internal threaded hole 30, the second fixing screw 5 is rotated at this time. Since the second fixing screw 5 is threadedly connected to the first fixing screw 4, the second fixing screw 5 drives the tilting slip ring 7 to move to the left during the rotation. Since one end of the tilting slip ring 7 is arranged in an inclined shape, the tilting slip ring 7 will push the T-shaped fixing block 6 to extend into the cross-shaped locking hole 29 during the movement to limit the first fixing screw 4. When the tilting slip ring 7 moves to the right, under the elastic force of the reset spring 8, the T-shaped fixing block 6 will return to its original position.

[0038] In addition, in order to achieve the above-mentioned purpose, the present invention also provides a crawler scraper, including a guard plate structure and a scraper body 32, a mechanical arm mechanism 31 is provided on one side of the scraper body 32, one end of the mechanical arm mechanism 31 is fixedly connected to the bucket 24, a plurality of digging teeth 28 are fixedly connected to the lower end of the bucket 24, a cross-shaped locking hole 29 is opened in the digging tooth 28, a plurality of digging teeth 28 are inserted into the corresponding through hole 2, a U-shaped mounting plate 1 is clamped on the outer side of the bucket 24, a fixing mechanism passes through the plurality of cross-shaped locking holes 29, and is screwed to the inner screw The U-shaped mounting plate 1 is sleeved on the outer side of the bucket 24 in the grooved hole 30. During the sleeved process, several digging teeth 28 are inserted into the through hole 2. After the lower end of the bucket 24 contacts the U-shaped mounting plate 1, one end of the first fixing screw 4 is screwed into the internal threaded hole 30, and the second fixing screw 5 is rotated to drive the inclined slip ring 7 to move to the left. Since one end of the inclined slip ring 7 is arranged in an inclined shape, the inclined slip ring 7 will push the T-shaped fixing block 6 to extend into the cross-shaped locking hole 29 during the movement to limit the first fixing screw 4.

[0039] Working principle: when in use, the U-shaped mounting plate 1 is sleeved on the outer side of the bucket 24. During the sleeve process, several digging teeth 28 are inserted into the through hole 2. After the lower end of the bucket 24 contacts the U-shaped mounting plate 1, one end of the first fixing screw 4 is screwed into the internal threaded hole 30, so that the first fixing screw 4 passes through the internal threaded hole 30 and the cross-shaped locking hole 29 in sequence. When one end of the first fixing screw 4 is screwed into the bottom end of the internal threaded hole 30, the second fixing screw 5 is rotated. Since the second fixing screw 5 is screwed into the first fixing screw 4, the second fixing screw 5 drives the inclined slip ring 7 to move to the left during the rotation. Since one end of the inclined slip ring 7 is arranged in an inclined shape, the inclined slip ring 7 will push the T-shaped fixing block 6 to extend into the cross-shaped locking hole 29 during the movement, so as to limit the first fixing screw 4. After the second fixing screw 5 is tightened, the limiting screw 9 is tightened in turn, so that the U-shaped mounting plate 1 is fixed to the outside of the bucket 24.

[0040] When the T-shaped baffle 16 is needed, the hydraulic oil is guided into the first guide chamber 12 through the hydraulic connecting pipe 10, and the hydraulic oil first enters the third guide chamber 18 through the first guide chamber 12. At this time, the first T-shaped rod 22 clamped in the third guide chamber 18 will be pushed to disengage from the third guide chamber 18. As the hydraulic oil continues to enter the connecting chamber 23 from the first guide chamber 12, the T-shaped baffle 16 will extend downward. Since one end of the push rod 20 is arranged in an arc shape, when the end contacts the connecting chamber 23, the push rod 20 moves back inward. When the push rod 20 moves to the position of the second guide chamber 11, under the elastic force of the first spring 15, the arc end of the push rod 20 will extend into the second guide chamber 11. At the same time, when the second T-shaped rod 26 moves to the position of the limiting hole 17, under the elastic force of the second spring 27, the clamping end of the second T-shaped rod 26 will be clamped into the limiting hole 17 to limit the T-shaped baffle 16.

[0041] When the T-shaped baffle 16 is not needed, the hydraulic oil is introduced into the second guide chamber 11. The hydraulic oil first pushes the push rod 20 to move to the right through the second guide chamber 11. The push rod 20 moves to the right and pushes the second T-shaped rod 26 to disengage from the clamping of the limiting hole 17. At this time, when the hydraulic oil enters the connecting chamber 23, the T-shaped baffle 16 will be pushed to move upward. Since the clamping end of the first T-shaped rod 22 is arranged in an arc shape, when the T-shaped baffle 16 moves upward, the first T-shaped rod 22 will be clamped into the third guide chamber 18 to limit the T-shaped baffle 16.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A guard plate structure, comprising a U-shaped mounting plate, characterized in that: A plurality of through holes are provided in the lower end of the U-shaped mounting plate, two limit screws are provided on both sides of the U-shaped mounting plate, and two protection mechanisms are movably connected in the lower end of the U-shaped mounting plate, and the protection mechanisms are respectively connected with the first guide cavity and the second guide cavity, and the first guide cavity and the second guide cavity are both provided in the U-shaped mounting plate, and the first guide cavity and the second guide cavity are respectively connected with corresponding hydraulic connecting pipes, and the hydraulic connecting pipes are fixedly installed on the upper end of the U-shaped mounting plate, and the hydraulic oil is delivered to the first guide cavity so that the hydraulic oil pushes the protection mechanism to move downward, and the hydraulic oil is delivered to the second guide cavity so that the hydraulic oil pushes the protection mechanism to move upward; A pushing assembly is provided in the protection mechanism, and a first limiting mechanism and a second limiting mechanism are respectively provided in the U-shaped mounting plate. When the protection mechanism moves downward, one end of the pushing assembly will extend into the second guide cavity, and the second limiting mechanism will be connected to the protection mechanism, so that the protection mechanism cannot move. When the hydraulic oil enters the second guide cavity, it will push the pushing assembly to move rightward, and the second limiting mechanism will cancel the limiting of the protection mechanism, while the first limiting mechanism will limit the protection mechanism after it moves upward. An internal threaded hole is provided in one side of the U-shaped mounting plate, the internal threaded hole is connected with a plurality of through holes, and a fixing mechanism is screwed in the internal threaded hole.

2. A guard plate structure according to claim 1, characterized in that: The protection mechanism comprises a T-shaped baffle plate, which is slidably connected in a connecting cavity, the connecting cavity is opened in the lower end of a U-shaped mounting plate, and the lower end of the T-shaped baffle plate extends into the external environment.

3. A guard plate structure according to claim 2, characterized in that: The pushing assembly includes a push rod, which is movably connected to the T-shaped baffle. A limiting block is sleeved on the outer side of the push rod. The limiting block is slidably connected to the limiting cavity. The limiting cavity is opened in the T-shaped baffle. A first spring is sleeved on the outer side of the push rod. One end of the first spring is fixedly connected to the limiting block, and the other end is fixedly connected to the limiting cavity. The left end of the push rod extends into the connecting cavity and is arranged in an arc shape. A limiting hole is opened in one end of the T-shaped baffle. The right end of the push rod extends into the limiting hole, and a second limiting mechanism is clamped in the limiting hole.

4. A guard plate structure according to claim 3, characterized in that: The second limiting mechanism includes a second T-shaped rod, one end of the second T-shaped rod is slidably connected to the second guide cavity, the second guide cavity is opened in the U-shaped mounting plate, a second spring is fixedly connected to the second guide cavity, the other end of the second spring is fixedly connected to the second T-shaped rod, and the second T-shaped rod is clamped into the limiting hole at one end away from the second spring.

5. A guard plate structure according to claim 2, characterized in that: The first limiting mechanism includes a first T-shaped rod, which is slidably connected to a first guide cavity. The first guide cavity is opened in a U-shaped mounting plate. A third spring is fixedly connected to the first guide cavity. The other end of the third spring is fixedly connected to the first T-shaped rod. The first T-shaped rod is arranged in an arc shape at one end away from the third spring and is clamped in the third guide cavity. The third guide cavity is opened in one end of the T-shaped baffle plate. The left end of the third guide cavity extends to the upper end of the T-shaped baffle plate and is aligned with the first guide cavity.

6. A guard plate structure according to claim 1, characterized in that: The fixing mechanism includes a first fixing screw and a second fixing screw, wherein the second fixing screw is screwed into the first fixing screw, and the first fixing screw is screwed into the internal threaded hole.

7. A guard plate structure according to claim 6, characterized in that: An inclined slip ring is fixedly connected to the outer side of the second fixed screw, and the inclined slip ring is slidably connected to the give-way cavity. The give-way cavity is opened in the first fixed screw, and a T-shaped fixing block is also movably connected to the give-way cavity. The T-shaped fixing block extends into the external environment away from one end of the inclined slip ring. A return spring is sleeved on the outer side of the T-shaped fixing block, and one end of the return spring is fixedly connected to the give-way cavity, and the other end is fixedly connected to the T-shaped fixing block.

8. A crawler scraper, characterized in that: It comprises the guard plate structure as described in any one of claims 1 to 7 and a scraper body, a mechanical arm mechanism is provided on one side of the scraper body, one end of the mechanical arm mechanism is fixedly connected to the bucket, a plurality of digging teeth are fixedly connected to the lower end of the bucket, a cross-shaped locking hole is provided in the digging teeth, a plurality of the digging teeth are inserted into the corresponding through holes, the U-shaped mounting plate is clamped on the outside of the bucket, the fixing mechanism passes through a plurality of cross-shaped locking holes, and is screwed into the internal threaded hole.

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