Foundation pit backfill soil flattening structure

Abstract

The utility model relates to the technical field of building construction equipment, and discloses a foundation pit backfill soil flattening structure which comprises a support, a pressing wheel is rotatably arranged in the support, a mud scraping strip for cleaning the pressing wheel is arranged on one side of the pressing wheel, a first rubber strip is fixedly arranged on one side of the mud scraping strip, a sliding plate is slidably connected to the interior of the support, and a second rubber strip is fixedly arranged on one side of the sliding plate. The sliding plate is connected with an elastic supporting assembly for supporting the mud scraping strip, and a driving assembly for horizontally driving the sliding plate is arranged on the inner wall of one side of the support. The support is fixed to the engineering vehicle, the engineering vehicle can drive the pressing wheel to rotate when moving, then backfilled soil can be rolled, elastic supporting can be provided for the mud scraping strip through the elastic supporting assembly and the sliding plate, the attaching degree between the first rubber strip and the pressing wheel can be kept, damage to the surface of the pressing wheel is avoided, and the service life of the backfilled soil is prolonged. Meanwhile, the roundness error of the pinch roller can be automatically compensated, and soil is not prone to remaining on the surface of the pinch roller.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a soil leveling structure for backfilling foundation pits. Background Technology

[0002] Backfilling is the process of filling the excavation pit with materials after it has been excavated, in order to restore the ground, support the structure, or for other engineering needs. The backfill material usually needs to have a certain strength, stability, and density to ensure that the backfilled pit is safe and stable and meets the engineering requirements. Backfilling is an important part of construction engineering and has high requirements for the compaction of the backfill soil.

[0003] The "A Backfill Soil Leveling Device for Foundation Pit" disclosed in application number "201922183688.2" includes a leveling frame, a roller, and a scraper. The roller is installed at the bottom of the leveling frame, and a scraper is provided on the upper side of the roller. One side of the scraper is welded to a pressure plate, and the other side of the scraper is provided with several comb teeth. The comb teeth are provided with cleaning grooves, and the comb teeth are in contact with the surface of the roller. By installing the solid roller at the bottom of the leveling frame, the roller is driven to roll by a drive mechanism. While the roller is leveling the backfill soil in the foundation pit, it also moves the leveling frame forward, thereby performing the backfill soil leveling operation. At the same time, a counterweight wheel is added to the leveling frame. The front and rear counterweight wheels increase the overall weight and support the leveling frame, preventing the leveling frame from tilting forward or backward. Under the scraping of the scraper and scraper blade, the roller is not easy to stick to the soil, ensuring the surface of the roller is clean and avoiding the backfill soil from affecting the leveling operation of the roller.

[0004] However, the above method still has the following drawbacks: the mud can be scraped off the roller by the mud scraper, but the scraper is equipped with comb teeth and dust removal grooves. The mud can easily remain on the roller through the gaps in the dust removal grooves, which will reduce the mud scraping efficiency and make it difficult to break up the scraped mud. When the mud on the roller is in clumps, it is easy to accumulate on the ground, which will reduce the flatness of the ground. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a soil leveling structure for foundation pit backfill, which has the advantages of high mud scraping efficiency and easy breaking up of scraped soil, thus solving the problems mentioned in the background technology.

[0006] This utility model provides the following technical solution: a soil leveling structure for backfilling foundation pits, including a support frame, a pressure roller rotatably mounted inside the support frame, a scraper for cleaning the pressure roller on one side, a rubber strip fixedly mounted on one side of the scraper, a sliding plate slidably connected inside the support frame, an elastic support component for supporting the scraper on the sliding plate, a drive component for horizontally driving the sliding plate on one side of the inner wall of the support frame, a partition fixedly mounted inside the support frame, and a crushing component for crushing mud lumps on one side of the partition.

[0007] As a preferred embodiment of this utility model, the elastic support assembly includes a support plate, a plurality of guide posts are fixedly provided on one side of the support plate, a spring is sleeved on the surface of the guide post, the spring is located between the support plate and the sliding plate, the surface of the sliding plate is provided with a post hole that is slidably connected to the guide post, a baffle is fixedly provided at one end of the guide post, the diameter of the baffle is larger than the diameter of the post hole, a mudguard is fixedly provided at the top of the support plate, a mudguard is fixedly provided at the bottom of the support plate, a rubber strip is fixedly provided at the bottom of the mudguard, and the bottom of the rubber strip is slidably connected to the partition.

[0008] As a preferred embodiment of this utility model, two support columns are fixedly provided on the inner wall of one side of the bracket, a baffle is fixedly provided at one end of the support column, and guide sleeves are fixedly provided on both sides of the slide plate. The diameter of the baffle is larger than the inner diameter of the guide sleeve, and the slide plate is slidably connected to the support column through the guide sleeve.

[0009] As a preferred technical solution of this utility model, the drive assembly includes a motor, one side of which is fixedly connected to the inner wall of one side of the bracket by bolts. The output shaft of the motor is fixedly connected to a worm gear, which is meshed with a worm wheel. One end of the worm wheel is fixedly provided with a support shaft, and both sides of the support shaft are fixedly provided with cams. The cams are slidably connected to the slide plate.

[0010] As a preferred embodiment of this utility model, both ends of the worm gear are rotatably connected to a first backing plate, and both ends of the support shaft are rotatably connected to a second backing plate. One side of the first backing plate and one side of the second backing plate are fixedly connected to the inner wall of one side of the bracket.

[0011] As a preferred technical solution of this utility model, the other side of the bracket is provided with a plurality of mounting holes for installation thereon, and a protective cover for protecting the elastic support component and the drive component is hinged to one side of the top of the bracket by a hinge. Both sides of the top of the protective cover are provided with through holes, and screws are inserted and connected inside the through holes. The top of the bracket is provided with a threaded hole for threaded connection with the screws.

[0012] As a preferred technical solution of this utility model, the crushing assembly includes a crushing shaft and a baffle frame. A plurality of crushing rods are fixedly provided on the surface of the crushing shaft. One end of the crushing shaft is rotatably connected to the middle of one side of the baffle frame. A second motor is fixedly installed inside the baffle frame. The output shaft of the second motor is fixedly connected to one end of the crushing shaft. A vertical plate is rotatably connected to the other end of the crushing shaft. Both the vertical plate and the baffle frame are fixedly connected to one side of the partition.

[0013] As a preferred technical solution of this utility model, the bracket has an installation port for installing the second motor on one side. A cover plate is fixedly installed on one side of the installation port by screws. A heat dissipation vent is opened on the surface of the cover plate. A protective net is fixedly installed on one side of the heat dissipation vent. The protective net is made of carbon steel wire.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The backfill soil leveling structure of this foundation pit uses a bracket fixed to an engineering vehicle. When the engineering vehicle moves, it drives the pressure roller to rotate, thus compacting the backfill soil. The elastic support components and sliding plate provide elastic support for the scraper strip, maintaining the fit between the rubber strip and the pressure roller, avoiding damage to the roller surface. At the same time, it can automatically compensate for the roundness error of the pressure roller, making it less likely for soil to remain on the roller surface, improving the soil scraping effect, and achieving high efficiency in peeling away clay, while reducing material splashing.

[0016] 2. The backfill soil leveling structure of this foundation pit can drive the slide plate to move horizontally through the drive component. The pressure between the scraper and the pressure roller can be adjusted, which is very flexible. The crushing component can crush the lumps of soil, which can prevent soil lumps from accumulating on the ground and improve the flatness of the ground. The setting of the partition and elastic support component can block the falling soil and prevent the soil from contacting the elastic support component and the drive component. Attached Figure Description

[0017] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0018] Figure 2 This is the second structural schematic diagram of the present invention;

[0019] Figure 3 This is the third structural schematic diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the partition of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the elastic support component of this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the drive component of this utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the crushing component of this utility model;

[0024] Figure 8 This is a schematic diagram of the structure of the cover plate of this utility model.

[0025] In the diagram: 1. Bracket; 2. Pressure roller; 3. Mounting hole; 4. Scraper strip; 5. Rubber strip one; 6. Support column; 7. Slide plate; 8. Baffle; 9. Elastic support assembly; 901. Support plate; 902. Mudslide one; 903. Guide column; 904. Spring; 905. Baffle plate; 906. Mudslide two; 907. Rubber strip two; 10. Guide sleeve; 11. Partition plate; 12. Drive assembly; 1201. Motor one; 1202. Worm gear; 1203. Worm wheel; 1204. Support shaft; 1205. Cam; 1206. Backing plate one; 1207. Backing plate two; 13. Protective cover; 14. Crushing assembly; 1401. Crushing shaft; 1402. Crushing rod; 1403. Baffle frame; 1404. Motor two; 1405. Vertical plate; 15. Cover plate; 16. Protective net. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-8The backfill soil leveling structure includes a support frame 1. A pressure roller 2 is rotatably mounted inside the support frame 1. By fixing the support frame 1 to a construction vehicle, the movement of the vehicle drives the pressure roller 2 to rotate, thus compacting the backfill soil. A scraper 4 for cleaning is located on one side of the pressure roller 2, and a rubber strip 5 is fixed to one side of the scraper 4. A sliding plate 7 is slidably connected inside the support frame 1. The sliding plate 7 is connected to an elastic support component 9 that supports the scraper 4. The elastic support component 9 and the sliding plate 7 provide elastic support for the scraper 4, maintaining the fit between the rubber strip 5 and the pressure roller 2, preventing damage to the surface of the pressure roller 2, and simultaneously... The system can automatically compensate for the roundness error of the pressure roller 2, and the surface of the pressure roller 2 is less likely to retain mud, which improves the mud scraping effect, has high efficiency in peeling clay, and reduces material splashing. The inner wall of one side of the support 1 is provided with a drive component 12 for horizontally driving the slide plate 7. The drive component 12 can drive the slide plate 7 to move horizontally, and the pressure between the mud scraper 4 and the pressure roller 2 can be adjusted, which is flexible. The support 1 is fixedly provided with a partition 11 inside, and a crushing component 14 for crushing mud blocks is provided on one side of the partition 11. The crushing component 14 can crush the mud blocks, which avoids the mud blocks from accumulating on the ground and improves the flatness of the ground.

[0028] In this embodiment, preferably, the elastic support component 9 includes a support plate 901. A plurality of guide posts 903 are fixedly disposed on one side of the support plate 901. Springs 904 are sleeved on the surface of each guide post 903, located between the support plate 901 and the sliding plate 7. A post hole is formed on the surface of the sliding plate 7 to slidably connect with the guide posts 903. A baffle 905 is fixedly disposed at one end of each guide post 903, the diameter of which is larger than the diameter of the post hole. A mudguard 902 is fixedly disposed at the top of the support plate 901, and a mudguard 906 is fixedly disposed at the bottom of the support plate 901. Rubber strip 2 907 is fixedly provided at the bottom end of 2 906. The bottom end of rubber strip 2 907 is slidably connected to partition 11. Support plate 901 can be supported by slide plate 7 and spring 904. Spring 904 can transmit pressure to scraper strip 4 through support plate 901. It can maintain the fit between rubber strip 1 5 and pressure roller 2 and the stability of pressure. During the rotation of pressure roller 2, scraper strip 4 and rubber strip 1 5 can scrape off the mud adhering to the surface of pressure roller 2. Mud baffle 1 902 and mud baffle 2 906 can prevent mud from entering and play a protective role.

[0029] In this embodiment, preferably, the drive assembly 12 includes a motor 1201. One side of the motor 1201 is fixedly connected to the inner wall of one side of the bracket 1 by bolts. The output shaft of the motor 1201 is fixedly connected to a worm gear 1202. The worm gear 1202 is meshed with a worm wheel 1203. One end of the worm wheel 1203 is fixedly provided with a support shaft 1204. Cams 1205 are fixedly provided on both sides of the support shaft 1204. The cams 1205 are slidably connected to the slide plate 7. Both ends of the worm gear 1202 are rotatably connected to a first backing plate 1206. Both ends of the support shaft 1204 are rotatably connected to a second backing plate 1207. One side of the first backing plate 1206 and one side of the second backing plate 1207 are fixed to the inner wall of one side of the bracket 1. The connection, via the first plate 1206 and the second plate 1207, can support the worm gear 1202 and the support shaft 1204 respectively. The worm gear 1202 is driven by the first motor 1201. The worm gear 1202 can drive the support shaft 1204 to rotate through the worm wheel 1203. The support shaft 1204 can drive the cam 1205 to rotate. When the cam 1205 rotates, it can push the slide plate 7 horizontally, thereby adjusting the compression of the spring 904, and thus changing the horizontal pressure on the scraper 4. After the horizontal pressure of the scraper 4 is adjusted, the worm gear 1202 can achieve self-locking of the support shaft 1204 through the angular friction between it and the worm wheel 1203, thus preventing the free rotation of the support shaft 1204 and the cam 1205.

[0030] In this embodiment, preferably, the crushing assembly 14 includes a crushing shaft 1401 and a baffle frame 1403. A plurality of crushing rods 1402 are fixedly disposed on the surface of the crushing shaft 1401. One end of the crushing shaft 1401 is rotatably connected to the middle of one side of the baffle frame 1403. A second motor 1404 is fixedly installed inside the baffle frame 1403. The output shaft of the second motor 1404 is fixedly connected to one end of the crushing shaft 1401. A vertical plate 1405 is rotatably connected to the other end of the crushing shaft 1401. Both the vertical plate 1405 and the baffle frame 1403 are fixedly connected to one side of the partition plate 11. A mounting port for installing the second motor 1404 is provided on one side of the bracket 1. A cover plate 15 is fixedly installed on one side of the loading port by screws. The surface of the cover plate 15 has heat dissipation vents. A protective net 16 is fixed on one side of the heat dissipation vents. The protective net 16 is made of carbon steel wire. The upright plate 1405 and the baffle frame 1403 can provide support for both ends of the crushing shaft 1401. The baffle frame 1403 can prevent soil from contacting the motor 1404. The motor 1404 drives the crushing shaft 1401. The crushing shaft 1401 can drive the crushing rod 1402 to rotate. When the scraped soil falls freely, the crushing rod 1402 can crush the soil into clumps, which prevents soil clumps from accumulating on the ground and ensures the flatness of the ground.

[0031] In this embodiment, preferably, two support columns 6 are fixedly provided on the inner wall of one side of the bracket 1, and a baffle 8 is fixedly provided at one end of the support column 6. Guide sleeves 10 are fixedly provided on both sides of the slide plate 7. The diameter of the baffle 8 is larger than the inner diameter of the guide sleeve 10. The slide plate 7 is slidably connected to the support column 6 through the guide sleeve 10. Several mounting holes 3 are opened on the other side of the bracket 1 for mounting. A protective cover 13 for protecting the elastic support component 9 and the drive component 12 is hinged to one side of the top of the bracket 1. Through holes are opened on both sides of the top of the protective cover 13, and screws are inserted into the through holes. A threaded hole for threaded connection with the screw is opened at the top of the bracket 1. The support column 6 and the guide sleeve 10 can support and guide the slide plate 7, maintain the stability of the slide plate 7, and prevent the slide plate 7 from tilting. The protective cover 13 can protect the elastic support component 9 and the drive component 12. By loosening the screws fixing the protective cover 13, the protective cover 13 can be opened, and the elastic support component 9 and the drive component 12 can be maintained and repaired.

[0032] In use, the bracket 1 is first fixed to the engineering vehicle through the mounting hole 3. When the engineering vehicle moves, it can drive the pressure roller 2 to rotate, which can compact the backfill soil. During the rotation of the pressure roller 2, the spring 904 of the sliding plate 7 and the elastic support component 9 can support the support plate 901. The spring 904 can transmit the pressure to the scraper 4 through the support plate 901, which can maintain the fit between the rubber strip 5 and the pressure roller 2 and the stability of the pressure. The scraper 4 and the rubber strip 5 can scrape off the soil adhering to the surface of the pressure roller 2. The contact between the rubber strip 5 and the pressure roller 2 avoids the scraper 4 from damaging the surface of the pressure roller 2. At the same time, it can automatically compensate for the roundness error of the pressure roller 2. Soil is not easy to remain on the surface of the pressure roller 2, which can improve the soil scraping effect, has high clay peeling efficiency, and reduces material splashing. The mudguard 902 and the mudguard 906 can prevent soil from entering.

[0033] When the pressure between the rubber strip 5 and the pressure roller 2 needs to be adjusted, the worm gear 1202 is driven by the motor 1201 of the drive assembly 12. The worm gear 1202 can drive the support shaft 1204 to rotate through the worm wheel 1203. The support shaft 1204 can drive the cam 1205 to rotate. When the cam 1205 rotates, it can push the slide plate 7 horizontally. The support column 6 and the guide sleeve 10 can support and guide the slide plate 7, thereby adjusting the compression of the spring 904, and then changing the horizontal pressure on the scraper 4. After the horizontal pressure of the scraper 4 is adjusted, the worm gear 1202 can achieve self-locking of the support shaft 1204 through the angular friction between it and the worm wheel 1203, thus preventing the free rotation of the support shaft 1204 and the cam 1205.

[0034] When the scraped soil falls freely, the motor 1404 of the crushing component 14 drives the crushing shaft 1401 to rotate. The crushing shaft 1401 can drive the crushing rod 1402 to rotate. The crushing rod 1402 can crush the soil into clumps, preventing the soil clumps from accumulating on the ground and allowing them to be evenly distributed on the ground, thus ensuring the flatness of the ground.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A soil leveling structure for backfilling foundation pits, comprising a support frame (1), characterized in that: The bracket (1) is equipped with a rotating pressure roller (2) inside. A scraper (4) for cleaning is provided on one side of the pressure roller (2). A rubber strip (5) is fixed on one side of the scraper (4). A sliding plate (7) is slidably connected inside the bracket (1). An elastic support component (9) for supporting the scraper (4) is connected to the sliding plate (7). A drive component (12) for horizontally driving the sliding plate (7) is provided on the inner wall of one side of the bracket (1). A partition (11) is fixed inside the bracket (1). A crushing component (14) for crushing mud is provided on one side of the partition (11).

2. The backfill soil leveling structure for foundation pits according to claim 1, characterized in that: The elastic support assembly (9) includes a support plate (901). A plurality of guide posts (903) are fixedly provided on one side of the support plate (901). A spring (904) is sleeved on the surface of the guide post (903). The spring (904) is located between the support plate (901) and the slide plate (7). The surface of the slide plate (7) is provided with a column hole that is slidably connected to the guide post (903). A baffle (905) is fixedly provided at one end of the guide post (903). The diameter of the baffle (905) is larger than the diameter of the column hole. A mudguard first (902) is fixedly provided at the top of the support plate (901). A mudguard second (906) is fixedly provided at the bottom of the support plate (901). A rubber strip second (907) is fixedly provided at the bottom of the mudguard second (906). The bottom of the rubber strip second (907) is slidably connected to the partition plate (11).

3. The backfill soil leveling structure for foundation pits according to claim 1, characterized in that: Two support columns (6) are fixedly provided on the inner wall of one side of the bracket (1). A baffle (8) is fixedly provided at one end of the support column (6). Guide sleeves (10) are fixedly provided on both sides of the slide plate (7). The diameter of the baffle (8) is larger than the inner diameter of the guide sleeve (10). The slide plate (7) is slidably connected to the support column (6) through the guide sleeve (10).

4. The backfill soil leveling structure for foundation pits according to claim 1, characterized in that: The drive assembly (12) includes a motor (1201), one side of which is fixedly connected to the inner wall of the bracket (1) by bolts. The output shaft of the motor (1201) is fixedly connected to a worm (1202), which is meshed with a worm wheel (1203). One end of the worm wheel (1203) is fixedly provided with a support shaft (1204), and both sides of the support shaft (1204) are fixedly provided with cams (1205). The cams (1205) are slidably connected to the slide plate (7).

5. The backfill soil leveling structure for foundation pits according to claim 4, characterized in that: Both ends of the worm gear (1202) are rotatably connected to a first backing plate (1206), and both ends of the support shaft (1204) are rotatably connected to a second backing plate (1207). One side of the first backing plate (1206) and one side of the second backing plate (1207) are fixedly connected to the inner wall of one side of the bracket (1).

6. The backfill soil leveling structure for foundation pits according to claim 1, characterized in that: The bracket (1) has an installation hole (3) on the other side. A protective cover (13) for protecting the elastic support component (9) and the drive component (12) is hinged to one side of the top of the bracket (1). Both sides of the top of the protective cover (13) have through holes. Screws are inserted into the through holes. The top of the bracket (1) has a threaded hole for threaded connection with the screws.

7. The backfill soil leveling structure for foundation pits according to claim 1, characterized in that: The crushing assembly (14) includes a crushing shaft (1401) and a baffle (1403). Several crushing rods (1402) are fixedly provided on the surface of the crushing shaft (1401). One end of the crushing shaft (1401) is rotatably connected to the middle of one side of the baffle (1403). A second motor (1404) is fixedly installed inside the baffle (1403). The output shaft of the second motor (1404) is fixedly connected to one end of the crushing shaft (1401). The other end of the crushing shaft (1401) is rotatably connected to a vertical plate (1405). Both the vertical plate (1405) and the baffle (1403) are fixedly connected to one side of the partition (11).

8. The backfill soil leveling structure for foundation pits according to claim 7, characterized in that: The bracket (1) has an installation port for installing the motor (1404) on one side. A cover plate (15) is fixedly installed on one side of the installation port by screws. A heat dissipation vent is provided on the surface of the cover plate (15). A protective net (16) is fixedly installed on one side of the heat dissipation vent. The protective net (16) is made of carbon steel wire.

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