Highway roadbed flattening device

Abstract

The utility model relates to a highway subgrade flattening device, and relates to the technical field of engineering equipment. The utility model provides a highway subgrade flattening device. The highway subgrade flattening device comprises a support frame, a flattening cylinder, a support rotating plate and a scraping plate, the two ends of the flattening cylinder are connected with the supporting frame. The two ends of the supporting rotating plate are rotationally connected with the supporting frame, and a replacement mechanism is arranged in the supporting rotating plate. The scraping plate is detachably connected with the supporting rotating plate through a replacing mechanism and is arranged close to the flattening cylinder. The scraping plate is arranged close to the flattening cylinder and tightly attached to the outer wall of the flattening cylinder, so that soil attached to the outer wall of the flattening cylinder can be scraped, the outer wall of the flattening cylinder can be effectively kept clean, the compaction uniformity is improved, damage of sundries to the surface of the flattening cylinder is reduced, and the flattening effect of the flattening cylinder is effectively maintained; and by arranging the replacement mechanism, the scraping plate is detachably connected with the supporting rotating plate, so that the scraping plate is conveniently replaced, and the replacement efficiency of the scraping plate is improved.

Description

Technical Field

[0001] This utility model relates to the field of engineering equipment technology, and more specifically, to a roadbed leveling device. Background Technology

[0002] Highway subgrade leveling devices are specialized equipment used to compact highway subgrades. They are mainly used by road rollers to level the ground. Road rollers are heavy machinery used to compact roads or sites. They typically use their own weight and vibration (in some models) to level the ground with the leveling cylinder, thereby improving the density and smoothness of the soil or road surface materials.

[0003] In the operation of existing road rollers, scrapers are needed to clean the outer wall of the compaction cylinder to improve the uniformity of ground compaction and reduce damage to the cylinder surface from debris. However, over time, friction between the scraper and the cylinder's outer wall causes severe wear at the scraper's end, affecting the cleaning effectiveness. Furthermore, existing scrapers are fixed to the support frame with multiple bolts and nuts, making scraper replacement time-consuming and inefficient. Utility Model Content

[0004] The purpose of this utility model is to provide a roadbed leveling device that enables convenient replacement of scrapers.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] In a first aspect, this utility model provides a highway subgrade leveling device, comprising:

[0007] Support frame;

[0008] A flattening cylinder, the two ends of which are connected to the support frame;

[0009] A rotating support plate is provided, the two ends of which are rotatably connected to the support frame, and a replacement mechanism is provided inside the rotating support plate.

[0010] The scraper is detachably connected to the support rotating plate via the replacement mechanism, and the scraper is positioned close to the flattening cylinder.

[0011] In an optional embodiment, the replacement mechanism includes at least one sliding component, which is slidably disposed within the support rotating plate, and the at least one sliding component has a plurality of spaced limiting portions.

[0012] The support plate is provided with multiple sliding grooves, and the multiple limiting parts are respectively slidably limited within the sliding grooves;

[0013] The scraper is provided with a plurality of limiting grooves, and the plurality of limiting parts are respectively slidably limited within the limiting grooves, so that the scraper and the supporting rotating plate are detachably connected.

[0014] In an optional embodiment, the limiting part includes a limiting slide rod and a limiting block. One end of the limiting slide rod is connected to the sliding assembly, and the other end is connected to the limiting block. The diameter of the limiting block is larger than the diameter of the limiting slide rod.

[0015] In an optional embodiment, the replacement mechanism further includes a rotating component rotatably mounted on the support plate, and the rotating component is kinetically connected to the at least one sliding component.

[0016] In an optional embodiment, the rotating assembly includes a turntable, a transmission rod, and a gear, wherein the transmission rod and the gear are disposed inside the supporting rotating plate, and the turntable is located at the top of the supporting rotating plate;

[0017] One end of the transmission rod is connected to the turntable, and the other end is connected to the gear. The gear is connected to the at least one sliding component in a transmission connection.

[0018] In an optional embodiment, the at least one sliding component includes a rack and a push plate, the push plate being connected to the rack, the rack being meshed with the gear, and a plurality of the limiting portions being disposed on the push plate.

[0019] In an optional embodiment, the rotating assembly further includes a first reset member, which is sleeved on the transmission rod and located between the turntable and the gear;

[0020] One end of the first reset component is connected to the turntable, and the other end is connected to the supporting rotating plate.

[0021] In an optional embodiment, the sliding assembly includes two sliding assemblies, which are respectively disposed on both sides of the rotating assembly. The rack of one sliding assembly is located on the front side of the gear, and the rack of the other sliding assembly is located on the rear side of the gear. The two racks are arranged in parallel.

[0022] In an optional embodiment, the replacement mechanism further includes a locking assembly for limiting the two sliding components. The locking assembly includes a lifting sleeve plate and a limiting rod. The limiting rod is connected to the lifting sleeve plate. Positioning blocks are provided on both sides of the lifting sleeve plate. The limiting rod and the positioning blocks are located on opposite sides of the lifting sleeve plate.

[0023] Both sliding components are provided with sliding grooves and positioning slots. The two ends of the lifting sleeve are slidably disposed in the sliding grooves, and the positioning slots are connected to the positioning blocks.

[0024] The two sliding components move toward the rotating component so that the positioning block located in the sliding groove engages with the positioning slot.

[0025] In an optional embodiment, the limiting rod is limited within the supporting rotating plate, and a second reset member is sleeved on the limiting rod. The second reset member is used to make the positioning block located in the sliding horizontal groove engage with the positioning slot.

[0026] The support plate is also provided with a connecting push plate, which is used to drive the locking assembly to move.

[0027] The beneficial effects of the highway subgrade leveling device provided in this embodiment of the invention include:

[0028] The scraper, positioned close to the flattening cylinder and in close contact with its outer wall, effectively removes dirt adhering to the cylinder's outer surface. This keeps the cylinder's outer wall clean, improves compaction uniformity, and reduces damage to the cylinder's surface from debris, thus maintaining the flattening effect. A replacement mechanism allows for detachable connection between the scraper and the supporting rotating plate, facilitating convenient scraper replacement and improving replacement efficiency. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of the highway subgrade leveling device provided in this embodiment;

[0031] Figure 2 This is a schematic diagram of the structure of the support rotating plate and scraper after disassembly provided in this embodiment;

[0032] Figure 3 for Figure 2 A partial schematic diagram of A in the middle;

[0033] Figure 4 This is a schematic diagram of the replacement mechanism provided in this embodiment.

[0034] Icons: 10-Roadbed leveling device; 100-Support frame; 110-Bolt; 200-Leveling cylinder; 300-Support rotating plate; 310-Sliding groove; 400-Scraper; 410-Limiting groove; 411-First limiting groove; 412-Second limiting groove; 500-Replacement mechanism; 510-Sliding assembly; 511-Rack; 512-Push plate; 5121-Connecting slide plate; 5122-Supporting push plate; 52 0-Limiting part; 521-Limiting slide bar; 522-Limiting stop; 530-Rotating assembly; 531-Turntable; 532-Transmission rod; 533-Gear; 534-Handle; 540-First reset component; 550-Clamping assembly; 551-Lifting sleeve; 552-Limiting rod; 553-Positioning block; 554-Second reset component; 555-Connecting push plate; 560-Sliding transverse groove; 570-Positioning slot. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0037] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0038] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model.

[0039] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0040] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0041] The following describes in detail the overall structure, working principle, and technical effects of the highway subgrade flattening device 10 provided by this utility model through embodiments and in conjunction with the accompanying drawings.

[0042] Please refer to Figure 1 The roadbed leveling device 10 provided by this utility model is applied to road rollers.

[0043] Please refer to Figure 1 The roadbed leveling device 10 proposed in this embodiment includes: a support frame 100, a leveling cylinder 200, a support rotating plate 300, and a scraper 400; both ends of the leveling cylinder 200 are connected to the support frame 100; both ends of the support rotating plate 300 are rotatably connected to the support frame 100, and a replacement mechanism 500 is provided inside the support rotating plate 300; the scraper 400 is detachably connected to the support rotating plate 300 through the replacement mechanism 500, and the scraper 400 is set close to the leveling cylinder 200.

[0044] Understandably, when the roadbed leveling device 10 is in use, the road roller pushes the support frame 100 to make the leveling cylinder 200 compress the road surface. At the same time, the scraper 400, which is in close contact with the outer wall of the leveling cylinder 200, can scrape off the soil adhering to the outer wall of the leveling cylinder 200. This can effectively keep the outer wall of the leveling cylinder 200 clean, improve the uniformity of compaction, and reduce the damage of debris to the surface of the leveling cylinder 200, thereby effectively maintaining the leveling effect of the leveling cylinder 200. When it is necessary to replace the scraper 400, the locking limit of the scraper 400 can be released by adjusting the replacement mechanism 500, so that the scraper 400 can be replaced conveniently, improving the replacement efficiency of the scraper 400. Therefore, the scraper 400, which is positioned close to the flattening cylinder 200 and in close contact with the outer wall of the flattening cylinder 200, can scrape away the soil adhering to the outer wall of the flattening cylinder 200. This effectively keeps the outer wall of the flattening cylinder 200 clean, improves the uniformity of compaction, and reduces damage to the surface of the flattening cylinder 200 caused by debris, thereby effectively maintaining the flattening effect of the flattening cylinder 200. By setting a replacement mechanism 500, the scraper 400 can be detachably connected to the support rotating plate 300, thereby enabling convenient replacement of the scraper 400 and improving the replacement efficiency of the scraper 400.

[0045] In this embodiment, the roadbed leveling device 10 includes a support frame 100.

[0046] Please refer to Figure 1 The support frame 100 is used to install the flattening cylinder 200 and the support rotating plate 300. The support frame 100 is a U-shaped support structure.

[0047] In this embodiment, the roadbed leveling device 10 includes a leveling cylinder 200.

[0048] Among them, the flattening cylinder 200 is used to compress the road surface under the action of the road roller.

[0049] Please refer to Figure 1 A rotating shaft runs horizontally through the inner side of the flattening cylinder 200. Both ends of the rotating shaft are connected to the inner side of the support frame 100 so that the flattening cylinder 200 can rotate relative to the support frame 100 through the rotating shaft.

[0050] In this embodiment, the roadbed flattening device 10 includes a support rotating plate 300.

[0051] In this embodiment, the two ends of the support plate 300 are rotatably connected to the support frame 100, and the support plate 300 is provided with a replacement mechanism 500.

[0052] The support plate 300 is provided with a sliding groove that is matched with the replacement mechanism 500.

[0053] Alternatively, please refer to Figure 1 A damping shaft is transversely mounted on the support rotating plate 300. Both ends of the damping shaft transversely pass through both sides of the support frame 100 and are connected to the support via bolts 110, so that the support rotating plate 300 can rotate relative to the support frame 100. Both bolts 110 penetrate the support frame 100 into the interior of the support rotating plate 300, and are threadedly connected to the support frame 100.

[0054] Understandably, when the scraper 400 needs to be replaced, the bolt 110 is rotated with a tool to separate it from the support plate 300. Then, the support plate 300 is rotated around the damping shaft. At this time, the scraper 400 is separated from the outer wall of the flattening cylinder 200 under the drive of the support plate 300, and the limitation on the scraper 400 can be further released.

[0055] In one embodiment, please refer to Figures 2-4 The replacement mechanism 500 includes at least one sliding component 510, which is slidably disposed within the support rotating plate 300. The at least one sliding component 510 has a plurality of spaced limiting portions 520. The support rotating plate 300 is provided with a plurality of sliding grooves 310, and the plurality of limiting portions 520 are respectively slidably limited within the sliding grooves 310. The scraper 400 is provided with a plurality of limiting grooves 410, and the plurality of limiting portions 520 are respectively slidably limited within the limiting grooves 410, so that the scraper 400 and the support rotating plate 300 are detachably connected.

[0056] It is understandable that the limiting part 520 is slidably limited within the limiting groove 410 of the scraper 400. By sliding the sliding component 510, the limiting part 520 is released from the limiting groove 410 of the scraper 400, and the scraper 400 is removed from the support rotating plate 300.

[0057] The sliding component 510 can be a structure such as a skateboard.

[0058] Alternatively, please refer to Figure 2 and Figure 4 The limiting part 520 includes a limiting slide rod 521 and a limiting block 522. One end of the limiting slide rod 521 is connected to the sliding assembly 510, and the other end is connected to the limiting block 522. The diameter of the limiting block 522 is larger than the diameter of the limiting slide rod 521.

[0059] The limiting block 522 can be a hemispherical structure.

[0060] Please refer to Figure 2 The limiting groove 410 includes two interconnected first limiting grooves 411 and second limiting grooves 412. The diameter of the first limiting groove 411 is the same as that of the limiting block 522, and the diameter of the second limiting groove 412 is the same as that of the limiting slide rod 521.

[0061] Understandably, when the sliding component 510 is slidable, the limiting part 520 located in the second limiting groove 412 is slid into the first limiting groove 411, thereby releasing the limiting part 520 from the limiting groove 410 of the scraper 400, and removing the limiting block 522 from the first limiting groove 411, thereby removing the scraper 400 from the support rotating plate 300.

[0062] In one embodiment, please refer to Figures 2-4 The replacement mechanism 500 includes a rotating component 530 and at least one sliding component 510. The rotating component 530 is rotatably mounted on the support plate 300, and the rotating component 530 is connected to the at least one sliding component 510 in a transmission manner.

[0063] Understandably, by rotating the rotating assembly 530, the limiting part 520 is released from the limiting groove 410 of the scraper 400, and the scraper 400 is removed from the supporting rotating plate 300.

[0064] In this embodiment, please refer to Figure 2 and Figure 3 The rotating assembly 530 includes a turntable 531, a transmission rod 532, and a gear 533. The transmission rod 532 and the gear 533 are disposed inside the supporting rotating plate 300, and the turntable 531 is located on the top of the supporting rotating plate 300. One end of the transmission rod 532 is connected to the turntable 531, and the other end is connected to the gear 533. The gear 533 is connected to at least one sliding assembly 510 in a transmission connection.

[0065] The turntable 531 is also equipped with a handle 534.

[0066] In this embodiment, please refer to Figure 3 and Figure 4 At least one sliding component 510 includes a rack 511 and a push plate 512, the push plate 512 is connected to the rack 511, the rack 511 is meshed with a gear 533, and a plurality of limiting parts 520 are provided on the push plate 512.

[0067] The push plate 512 includes a connecting slide plate 5121 and a supporting push plate 5122. The connecting slide plate 5121 is arranged horizontally and one end is connected to the rack 511. The supporting push plate 5122 is arranged vertically and connected to the bottom of the connecting slide plate 5121. Multiple limiting parts 520 are provided on the push plate 512.

[0068] Understandably, by rotating the turntable 531 through the handle 534, the turntable 531 drives the gear 533 to rotate synchronously through the transmission rod 532. At this time, the rack 511 drives the push plate 512 to slide along the inner wall of the support plate 300 under the meshing drive of the gear 533. The push plate 512 drives multiple limiting parts 520 to move synchronously along the limiting groove 410, so that the limiting part 520 slides from the second limiting groove 412 to the first limiting groove 411, so that the limiting part 520 is released from the limiting groove 410 of the scraper 400, and the limiting block 522 is removed from the first limiting groove 411, thereby removing the scraper 400 from the support plate 300.

[0069] In this embodiment, please refer to Figure 2 and Figure 3 The rotating assembly 530 also includes a first reset member 540, which is sleeved on the transmission rod 532 and located between the turntable 531 and the gear 533; one end of the first reset member 540 is connected to the turntable 531 and the other end is connected to the support plate 300.

[0070] Optionally, the first reset member 540 can be a torsion spring, with one end fixed to the turntable 531 and the other end fixed to the supporting rotating plate 300. Both the turntable 531 and the supporting rotating plate 300 have slots for inserting the end of the torsion spring.

[0071] Understandably, when the turntable 531 is rotated, the turntable 531 twists the first reset member 540 by rotating. After the scraper 400 is disassembled and a new scraper 400 is installed, there is no need to rotate the turntable 531; the first reset member 540 resets, causing the sliding assembly 510 and the rotating assembly 530 to reset as well.

[0072] For example, in other embodiments, please refer to Figure 4The replacement mechanism 500 includes a rotating component 530 and two sliding components 510. The two sliding components 510 are respectively disposed on both sides of the rotating component 530. The rack 511 of one sliding component 510 is located in front of the gear 533, and the rack 511 of the other sliding component 510 is located in rear of the gear 533. The two racks 511 are arranged in parallel.

[0073] The limiting groove 410 provided on the scraper 400 is symmetrically arranged with respect to one of the sliding components 510 and the limiting groove 410 provided with respect to the other sliding component 510.

[0074] It is worth mentioning that, in order to prevent the first reset member 540 of the rotating assembly 530 from causing the sliding assembly 510 to self-slide and reset during the replacement of the scraper 400, this embodiment also provides a locking assembly 550 to lock and limit the sliding assembly 510.

[0075] In this embodiment, please refer to Figure 2 and Figure 3 The replacement mechanism 500 also includes a locking assembly 550, which is used to limit the two sliding components 510. The locking assembly 550 includes a lifting sleeve 551 and a limiting rod 552. The limiting rod 552 is connected to the lifting sleeve 551. Positioning blocks 553 are provided on both sides of the lifting sleeve 551. The limiting rod 552 and the positioning blocks 553 are located on opposite sides of the lifting sleeve 551.

[0076] Further, please refer to Figure 4 Each of the two sliding components 510 is provided with a sliding transverse groove 560 and a positioning slot 570. The two ends of the lifting sleeve 551 are slidably set in the sliding transverse groove 560, and the positioning slot 570 is engaged with the positioning block 553. The two sliding components 510 move toward the rotating component 530 so that the positioning block 553 located in the sliding transverse groove 560 engages with the positioning slot 570.

[0077] Among them, the outer wall of the positioning block 553 is a T-shaped structure with a beveled surface, and two T-shaped positioning slots 570 are equally spaced inside the support push plate 5122 to cooperate with the outer wall of the positioning block 553.

[0078] In this embodiment, the limiting rod 552 is limited within the support rotating plate 300, and a second reset member 554 is sleeved on the limiting rod 552. The second reset member 554 is used to make the positioning block 553 located in the sliding horizontal groove 560 engage and enter the positioning slot 570.

[0079] Please refer to Figure 2 and Figure 3The second reset component 554 is a reset spring. The top of the second reset component 554 abuts against the bottom wall of the lifting sleeve plate 551, and the bottom of the second reset component 554 abuts against the inner wall of the support rotating plate 300.

[0080] Optionally, the support plate 300 is also provided with a connecting push plate 555, which is used to drive the engagement assembly 550 to move.

[0081] Understandably, pressing down on the connecting push plate 555 causes the lifting sleeve 551 and the positioning block 553 to move downwards along the sliding transverse groove 560. Simultaneously, the lifting sleeve 551 retracts by displacing and pressing the second reset member 554. When the positioning slot 570 on the push plate 512 of the sliding assembly 510 moves to the port of the positioning block 553, the second reset member 554 rebounds and pushes the lifting sleeve 551 and the positioning block 553 downwards into the positioning slot 570, so that the positioning block 553 is inserted into the interior of the positioning slot 570, thereby locking and fixing the push plate 512.

[0082] Furthermore, after the scraper 400 is replaced, press down on the connecting push plate 555 to move the positioning block 553 on the connecting push plate out of the positioning slot 570, thereby releasing the locking component 550 from the sliding component 510.

[0083] The working principle and process of the roadbed flattening device 10 provided in this utility model embodiment are as follows: First, when the scraper 400 needs to be replaced, the tool rotates the bolt 110 to separate it from the support rotating plate 300. The support rotating plate 300 rotates around the damping rotating shaft. The scraper 400 is separated from the outer wall of the flattening cylinder 200 under the drive of the support rotating plate 300.

[0084] Next, the restriction on the scraper 400 is released. By rotating the turntable 531 with the handle 534, the turntable 531 drives the gear 533 to rotate synchronously via the transmission rod 532. At this time, the rack 511, driven by the meshing of the gear 533, drives the push plate 512 to slide along the inner wall of the supporting turntable 300. The push plate 512 drives multiple limiting parts 520 to move synchronously along the limiting groove 410, so that the limiting part 520 slides from the second limiting groove 412 into the first limiting groove 411, thereby releasing the limiting part 520 from the limiting groove 410 of the scraper 400. The limiting block 522 is then removed from the first limiting groove 411, thus removing the scraper 400 from the supporting turntable 300. At the same time, the locking assembly 550 engages and limits the push plate 512 of the sliding assembly 510 to prevent the sliding assembly 510 from self-sliding and resetting during the replacement of the scraper 400.

[0085] Furthermore, after the scraper 400 is replaced, the connecting push plate 555 is pressed down, causing the positioning block 553 on the connecting push plate to move out of the positioning slot 570, thus releasing the engaging component 550 from the sliding component 510. At the same time, the first reset component 540 resets, causing the sliding component 510 and the rotating component 530 to reset, thereby fixing the new scraper 400.

[0086] Finally, the support plate 300 rotates around the damping shaft, causing the scraper 400 to fit against the outer wall of the flattening cylinder 200 under the drive of the support plate 300, and then the bolt 110 is tightened to the support plate 300 by rotating the tool.

[0087] In summary, the roadbed leveling device 10 provided in this embodiment of the present invention, through the scraper 400, which is positioned close to the leveling cylinder 200 and closely adheres to the outer wall of the leveling cylinder 200, can scrape away the soil adhering to the outer wall of the leveling cylinder 200. This effectively keeps the outer wall of the leveling cylinder 200 clean, improves the uniformity of compaction, and reduces damage to the surface of the leveling cylinder 200 caused by debris, thereby effectively maintaining the leveling effect of the leveling cylinder 200. By providing a replacement mechanism 500, the scraper 400 can be detachably connected to the supporting rotating plate 300, thereby enabling convenient replacement of the scraper 400 and improving the replacement efficiency of the scraper 400.

[0088] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A highway subgrade leveling device, characterized in that, include: Support frame (100); A flattening cylinder (200) is provided, the two ends of which are connected to the support frame (100); A support rotating plate (300) is provided, the two ends of which are rotatably connected to the support frame (100), and a replacement mechanism (500) is provided inside the support rotating plate (300). A scraper (400) is detachably connected to the support rotating plate (300) via the replacement mechanism (500), and the scraper (400) is disposed close to the flattening cylinder (200); The replacement mechanism (500) includes at least one sliding component (510), which is slidably disposed within the support rotating plate (300), and a plurality of limiting portions (520) are provided on the at least one sliding component (510) at intervals. The support plate (300) is provided with a plurality of sliding grooves (310), and the plurality of limiting parts (520) are respectively slidably limited within the sliding grooves (310); The scraper (400) is provided with a plurality of limiting grooves (410), and a plurality of limiting parts (520) are respectively slidably limited within the limiting grooves (410) so that the scraper (400) and the supporting rotating plate (300) can be detachably connected.

2. The highway subgrade leveling device according to claim 1, characterized in that, The limiting part (520) includes a limiting slide rod (521) and a limiting block (522). One end of the limiting slide rod (521) is connected to the sliding assembly (510), and the other end is connected to the limiting block (522). The diameter of the limiting block (522) is larger than the diameter of the limiting slide rod (521).

3. The highway subgrade leveling device according to claim 1, characterized in that, The replacement mechanism (500) further includes a rotating component (530), which is rotatably mounted on the support plate (300) and is connected to the at least one sliding component (510) in a transmission manner.

4. The highway subgrade leveling device according to claim 3, characterized in that, The rotating assembly (530) includes a turntable (531), a transmission rod (532), and a gear (533). The transmission rod (532) and the gear (533) are disposed inside the supporting rotating plate (300), and the turntable (531) is located on the top of the supporting rotating plate (300). One end of the transmission rod (532) is connected to the turntable (531), and the other end is connected to the gear (533). The gear (533) is connected to the at least one sliding component (510) in a transmission connection.

5. The highway subgrade leveling device according to claim 4, characterized in that, The at least one sliding component (510) includes a rack (511) and a push plate (512), the push plate (512) being connected to the rack (511), the rack (511) being meshed with the gear (533), and a plurality of limiting parts (520) being disposed on the push plate (512).

6. The highway subgrade leveling device according to claim 4, characterized in that, The rotating assembly (530) further includes a first reset member (540), which is sleeved on the transmission rod (532) and located between the turntable (531) and the gear (533); One end of the first reset member (540) is connected to the turntable (531), and the other end is connected to the support turntable (300).

7. The highway subgrade leveling device according to claim 5, characterized in that, The sliding assembly (510) includes two components, which are respectively disposed on both sides of the rotating assembly (530). The rack (511) of one sliding assembly (510) is located on the front side of the gear (533), and the rack (511) of the other sliding assembly (510) is located on the rear side of the gear (533). The two racks (511) are arranged in parallel.

8. The highway subgrade leveling device according to claim 7, characterized in that, The replacement mechanism (500) further includes a locking assembly (550), which is used to limit the two sliding components (510). The locking assembly (550) includes a lifting sleeve plate (551) and a limiting rod (552). The limiting rod (552) is connected to the lifting sleeve plate (551). Positioning blocks (553) are provided on both sides of the lifting sleeve plate (551). The limiting rod (552) and the positioning blocks (553) are located on opposite sides of the lifting sleeve plate (551). Both of the sliding components (510) are provided with sliding grooves (560) and positioning slots (570). The two ends of the lifting sleeve (551) are slidably disposed in the sliding grooves (560), and the positioning slots (570) are connected to the positioning blocks (553). The two sliding components (510) move toward the rotating component (530) so that the positioning block (553) located in the sliding groove (560) engages into the positioning slot (570).

9. The highway subgrade leveling device according to claim 8, characterized in that, The limiting rod (552) is limited within the supporting rotating plate (300), and a second reset member (554) is sleeved on the limiting rod (552). The second reset member (554) is used to make the positioning block (553) located in the sliding transverse groove (560) engage into the positioning slot (570). The support plate (300) is also provided with a connecting push plate (555), which is used to drive the locking assembly (550) to move.

Images