Bucket for leveling foundation pit soil

Abstract

The utility model discloses a bucket for leveling foundation pit soil, which comprises a bucket body, the bucket body comprises a bucket bottom plate, a C-shaped bucket back plate connected to the rear end of the bucket bottom plate, two bucket side plates connected between the two sides of the bucket bottom plate and the two sides of the bucket back plate in a one-to-one correspondence manner, and a front longitudinal shovel plate connected to the front end of the bucket bottom plate; two roller holes and a shovel plate hole are formed in the bucket bottom plate in parallel in the depth direction; the bucket further comprises a rear longitudinal roller, two built-in lateral rollers and a built-in lateral shovel plate. The rear longitudinal rollers are mounted at the rear end of the bucket bottom plate; the two built-in lateral rollers are mounted in the two roller holes in the bucket bottom plate in a one-to-one correspondence manner; the built-in lateral shovel plate is installed in the shovel plate hole of the bucket bottom plate through the two inclination adjusting mechanisms. The bucket for leveling the soil of the foundation pit can be flexibly applied to leveling and compacting the soil at the bottoms of various foundation pits, the leveling efficiency of the soil at the bottoms of the foundation pits is improved, and meanwhile the construction cost can be saved.

Description

Technical Field

[0001] The utility model relates to a bucket used for leveling foundation pit soil. Background Art

[0002] With the vigorous promotion of the infrastructure market, a lot of foundation pit excavation construction work has been created. In the process of foundation pit excavation, surveyors and excavators are often used in cooperation. Surveyors command excavators to carry out excavation operations under the premise of controlling the base elevation on site. However, large-scale excavation can only control the base elevation as much as possible to 50mm to 80mm above the design elevation. It is difficult for large excavators to accurately control the base elevation to the design elevation. Therefore, a small excavator with a scraper is needed to level each piece, and sometimes a roller is needed to compact the floor. However, this type of site leveling method has extremely low leveling efficiency. It only relies on the scraper of a small excavator for leveling. Once the operator does not have solid operating skills and work patience, it is difficult to achieve a leveling effect on the foundation pit base on site. In particular, if the building (structure) on the site has extremely high requirements for elevation control, or there are many reserved openings on the building (structure) and strict pipeline layout requirements, the control of the base elevation requires effective cooperation between surveyors and excavators for leveling. If there is no effective leveling measure, it is very easy to cause the elevation after leveling to fail to meet the design requirements, and it also increases the cost of construction machinery. If only relying on rollers for compaction, the site operation area is required to be high, and the narrow foundation pit working surface is difficult to play the role of rollers, and the cost of dispatching is also increased. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a bucket for leveling foundation pit soil, which can be flexibly applied to the leveling and compacting of various types of foundation pit bottom soil, improve the leveling efficiency of the foundation pit bottom soil, and save construction costs.

[0004] The purpose of the utility model is achieved as follows: a bucket for leveling foundation pit soil, comprising a bucket body, the bucket body comprising a bucket bottom plate, a C-shaped bucket back plate connected to the rear end of the bucket bottom plate, two bucket side plates connected one-to-one between the two sides of the bucket bottom plate and the two sides of the bucket back plate, and a front longitudinal shovel plate connected to the front end of the bucket bottom plate; the bucket also includes a rear longitudinal roller, two built-in lateral rollers and a built-in lateral shovel plate; wherein,

[0005] Two roller holes and one shovel plate hole are arranged in parallel along the depth direction on the bucket bottom plate;

[0006] The rear longitudinal roller is installed at the rear end of the bucket bottom plate;

[0007] Two built-in lateral rollers are installed in two roller holes on the bucket bottom plate in a one-to-one correspondence;

[0008] The built-in lateral shovel plate is installed in the shovel plate hole of the bucket bottom plate through two tilt adjustment mechanisms.

[0009] The above-mentioned bucket for leveling foundation pit soil, wherein a rectangular worm groove is respectively provided on the inner bottom surface of both ends of the built-in lateral shovel plate, and an arc-shaped flange is respectively fixed on both sides of each worm groove, and a stud is installed in the middle of each flange;

[0010] Each of the tilt adjustment mechanisms includes a bottom support, two top supports, a worm gear mechanism and a driving mechanism; the bottom support is a semicircular cylinder and is fixed on the inner side of the shovel plate hole of the bucket bottom plate; the top support includes a semicircular ring support plate adapted to the radius of the flange on the built-in lateral shovel plate and a panel fixed on the outer surface of the support plate, and a guide hole is opened along the surface of the panel; the two top supports each pass through the support plate and are fixedly sleeved on the two ends of the bottom support in a one-to-one correspondence with two flanges located on both sides of a worm groove; the worm gear mechanism includes a semicircular worm wheel fixedly sleeved in the middle of the bottom support and a worm rotatably mounted in the worm groove of the built-in lateral shovel plate and meshing with the worm wheel; the driving mechanism includes a remote control motor fixed on the inner side of the built-in lateral shovel plate, a driving gear mounted on the rotating shaft of the remote control motor, and a passive gear mounted on the inner end of the worm and meshing with the driving gear;

[0011] The four studs on the built-in lateral shovel plate are inserted one by one into the guide holes in the four top supports of the two tilting mechanisms, and then the four anti-slip nuts are installed one by one at the bottom of the four studs, so that the built-in lateral shovel plate can be flipped 15° to 25° relative to the bucket bottom plate through the two tilting mechanisms.

[0012] The above-mentioned bucket for leveling foundation pit soil, wherein the front longitudinal shovel plate is a wedge-shaped plate.

[0013] In the above-mentioned bucket for leveling foundation pit soil, both ends of the rear longitudinal roller are respectively installed on the rear end of the bucket bottom plate through roller brackets.

[0014] The utility model has the following features for the bucket used for leveling the soil at the bottom of the foundation pit:

[0015] 1) The bucket structure of the utility model is relatively simple, the assembly difficulty is not great, and the design and manufacturing cost is low; in addition, the additional three rollers and the built-in shovel plate are connected to the bucket by mechanical devices or welding processes, thereby improving the firmness and stability;

[0016] 2) The bucket of the utility model has multiple functions for leveling the site. It has a front longitudinal shovel board that can perform simple shoveling functions to remove protruding soil and stones on the site; it has attached rollers that can compact and level the site after the shovel board has leveled it; the two types of functions are combined to improve the leveling efficiency of the foundation pit base.

[0017] 3) The bucket of the utility model has a multi-angle leveling effect; the rear longitudinal roller can be used to compact the site when the excavator moves forward and backward; the built-in lateral rollers on the bottom plate of the bucket can be used to compact the site when the excavator moves left and right, or the walking mechanism can be fixed and the mechanical arm can be used to sweep the site in a fan shape to compact the site;

[0018] 4) The bucket of the utility model can be precisely controlled by the excavator operator for the base elevation; the front longitudinal shovel plate can be autonomously adjusted in angle by the excavator's mechanical arm to promptly correct protruding or sunken parts on the ground; the built-in lateral shovel plate inside the bucket adjusts the inclination angle through two tilt adjustment mechanisms, and when the mechanical arm moves horizontally, the built-in lateral shovel plate can achieve horizontal leveling work to make the base reach the designed elevation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a bucket for leveling foundation pit soil of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the tilt adjustment mechanism in the bucket of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the rear longitudinal roller in the bucket of the utility model. DETAILED DESCRIPTION

[0022] The utility model will be further described below in conjunction with the accompanying drawings.

[0023] See also Figures 1 to 3 The utility model discloses a bucket for leveling foundation pit soil, comprising a bucket body, a rear longitudinal roller 2, two built-in lateral rollers 3 and a built-in lateral shovel plate 4.

[0024] The bucket body includes a bucket bottom plate 10, a C-shaped bucket back plate 11 connected to the rear end of the bucket bottom plate 10, two bucket side plates 12 connected one by one between the two sides of the bucket bottom plate 10 and the two sides of the bucket back plate 11, and a front longitudinal shovel plate 13 connected to the front end of the bucket bottom plate 10; the length × width of the bucket bottom plate 10 = 1.2m × 1m, and two roller holes 101 and a shovel plate hole 102 are arranged in parallel along the depth direction on the bucket bottom plate 10; the front longitudinal shovel plate 13 is a wedge-shaped plate that is thin at the front and thick at the back, and the width of the front longitudinal shovel plate is 20cm to 25cm. The rear end height of the bucket body is 60cm to 80cm.

[0025] The outer diameter of the rear longitudinal roller 2 is 25 cm and the length is 1.2 m. The rear longitudinal roller 2 is composed of a roller 20, a plurality of bearings 21 installed at intervals on the roller 20, and a roller steel sleeve 22 sleeved outside the plurality of bearings 21; the length of the roller 20 and the number of bearings 21 are determined according to the length of the rear longitudinal roller 2; the two ends of the roller 20 are respectively installed at the rear end of the bucket bottom plate 10 through a bracket.

[0026] The two built-in lateral rollers 3 are installed in two roller holes 101 on the bucket bottom plate 10 in a one-to-one correspondence. Each built-in lateral roller 3 is also composed of a roller shaft installed in the roller hole 101, a plurality of bearings installed at intervals on the upper end of the roller shaft, and a roller steel sleeve sleeved outside the plurality of bearings; the length of the roller shaft and the number of bearings are determined according to the length of the built-in roller 3; the outer diameter of each built-in lateral roller 3 is 15 cm and the length is 80 cm.

[0027] The length of the built-in lateral shovel plate 4 is 80 cm and the width is 20 cm to 25 cm; the built-in lateral shovel plate 4 is installed in the shovel plate hole 102 on the bucket bottom plate 10 through two tilt adjustment mechanisms 5; a rectangular worm groove 41 is respectively opened on the inner bottom surface of both ends of the built-in lateral shovel plate 4, and an arc-shaped flange 42 is respectively fixed on both sides of each worm groove 41, and a stud is installed in the middle of each flange 42.

[0028] Each tilt adjustment mechanism 5 includes a bottom support 50, two top supports 51, a worm gear mechanism and a driving mechanism; wherein the bottom support 50 is a semicircular cylinder with a radius of 30 cm and is fixed on the inner side of the shovel plate hole 102 of the bucket bottom plate 10; the top support 51 includes a semicircular ring support plate adapted to the radius of the flange on the built-in lateral shovel plate 4 and a panel fixed on the outer surface of the support plate, and a guide slot 510 is opened along the surface of the panel; the two top supports 51 each pass through the support plate and are fixedly sleeved on the two ends of the bottom support 50 in a one-to-one correspondence with the flanges 42 on both sides of a worm groove 41; the worm gear mechanism includes a sleeve fixed on the bottom support 50 A semicircular worm wheel 52 in the middle and a worm 53 rotatably mounted in the worm groove 41 of the built-in lateral shovel plate 4 and meshing with the worm wheel 52, the two ends of the worm 53 are respectively mounted in the inner wall and the outer wall of the worm groove 41 through bearings, and the inner end of the worm 53 passes through the inner wall of the worm groove 41 to expose the inner side surface of the built-in lateral shovel plate 4; the driving mechanism includes a remote control motor 54 fixed on the inner side surface of the built-in lateral shovel plate 4, a driving gear 55 mounted on the rotating shaft of the remote control motor 54, and a driven gear 56 mounted on the inner end of the worm 53 and meshing with the driving gear 55.

[0029] The four studs on the built-in lateral shovel plate 4 are inserted one by one into the guide slots 510 in the four top supports 51 of the two tilting mechanisms 5, and then the four anti-slip nuts 58 are installed one by one on the lower part of the four studs through gaskets 57, so that the four flanges 42 on the built-in lateral shovel plate 4 can slide one by one on the four top supports 51 of the two tilting mechanisms 5, thereby realizing the built-in lateral shovel plate 4 flipping 15° to 25° relative to the bucket bottom plate 10.

[0030] According to the length of the built-in lateral shovel plate 4, one or two more tilt adjustment mechanisms 5 can be added to improve the stability and reliability of the built-in lateral shovel plate 4 when it is turned over.

[0031] The utility model bucket for foundation pit soil leveling, when in use, when encountering raised stones on the ground, or the local position elevation is higher than the surrounding soil, the remote control motor 54 of the two tilt adjustment mechanisms is controlled, and the remote control motor 54 sequentially drives the driving gear 55, the passive gear 56 and the worm 53 to rotate, and the inclination angle of the built-in lateral shovel plate 4 is changed through the meshing transmission of the worm 53 and the worm wheel 52, so that the built-in lateral shovel plate 4 can dig deeper in the clay, cut off the excessively high soil or stones, and control the base elevation at the same design elevation position. Then the remote control motor 54 can be controlled again to reset the built-in lateral shovel plate 4, ensuring that the two built-in lateral rollers 3 beside the built-in lateral shovel plate 4 can compact the soil smoothly.

[0032] The utility model provides a bucket for leveling foundation pit soil, which comprises the following steps during construction:

[0033] Step 1: After large-scale earthwork excavation and transportation, the base soil is in a state of 100% loose soil, until the base elevation is 50mm to 80mm above the design elevation, a small excavator is replaced, and the bucket of the utility model is installed on the small excavator for leveling;

[0034] Step 2: Use the front longitudinal shovel plate 13 of the bucket to sort out the loose soil and clean up some protruding soil blocks and stones; the operator can also use the front longitudinal shovel plate 13 to compact or accurately scrape the loose soil by adjusting the angle of the bucket, so that the surveyor can measure the actual elevation of the current base;

[0035] Step 3: After the surveyor has measured and approved, if the base soil is still higher than the design elevation, the front longitudinal shovel 13 is used to continue to clean the protruding soil blocks. After reaching the design elevation, the rear longitudinal roller 2 is used to repeatedly roll and compact the soil in situ to make the soil more flat;

[0036] Step 4: After the small excavator has completed the leveling of the soil in this area, it continues to select different working modes according to the different on-site working environments, that is, it uses the front longitudinal shovel 13 and the rear longitudinal roller 2 to continue to level and roll vertically, or changes the direction of the crawler and the direction of the mechanical arm to use the built-in lateral shovel 4 and the built-in lateral roller 3 to continue to level and roll horizontally; or keeps the walking mechanism fixed, and uses the rotation of the mechanical arm to drive the built-in lateral shovel 4 and the built-in lateral roller 3 on the bucket body to perform fan-shaped leveling work;

[0037] Step 5. During the horizontal and fan-shaped leveling work, the built-in lateral shovel plate 4 changes its angle through the two tilting mechanisms 5, thereby changing the thickness of the shoveled soil. After the ground elevation approaches the design elevation, the two tilting mechanisms 5 can be controlled to restore the built-in lateral shovel plate 4 and the bucket bottom plate 10 to the same plane state, and the two built-in lateral rollers 3 in the bucket bottom plate 10 are used for rolling and leveling, thereby effectively improving the working efficiency.

[0038] The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Technicians in the relevant technical field can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also belong to the scope of the present invention and should be defined by the claims.

Claims

1. A bucket for leveling foundation pit soil, comprising a bucket body, the bucket body comprising a bucket bottom plate, a C-shaped bucket back plate connected to the rear end of the bucket bottom plate, two bucket side plates connected between the two sides of the bucket bottom plate and the two sides of the bucket back plate in a one-to-one correspondence, and a front longitudinal shovel plate connected to the front end of the bucket bottom plate; characterized in that: The bucket also includes a rear longitudinal roller, two built-in lateral rollers and a built-in lateral shovel plate; Two roller holes and one shovel plate hole are arranged in parallel along the depth direction on the bucket bottom plate; The rear longitudinal roller is installed at the rear end of the bucket bottom plate; Two built-in lateral rollers are installed in two roller holes on the bucket bottom plate in a one-to-one correspondence; The built-in lateral shovel plate is installed in the shovel plate hole of the bucket bottom plate through two tilt adjustment mechanisms.

2. The bucket for leveling foundation pit soil according to claim 1, characterized in that: A rectangular worm groove is respectively formed on the inner bottom surface of both ends of the built-in lateral shovel plate, and an arc-shaped flange is respectively fixed on both sides of each worm groove, and a stud is installed in the middle of each flange; Each of the tilt adjustment mechanisms includes a bottom support, two top supports, a worm gear mechanism and a driving mechanism; the bottom support is a semicircular cylinder and is fixed on the inner side of the shovel plate hole of the bucket bottom plate; the top support includes a semicircular ring support plate adapted to the radius of the flange on the built-in lateral shovel plate and a panel fixed on the outer surface of the support plate, and a guide hole is opened along the surface of the panel; the two top supports each pass through the support plate and are fixedly sleeved on the two ends of the bottom support in a one-to-one correspondence with two flanges located on both sides of a worm groove; the worm gear mechanism includes a semicircular worm wheel fixedly sleeved in the middle of the bottom support and a worm rotatably mounted in the worm groove of the built-in lateral shovel plate and meshing with the worm wheel; the driving mechanism includes a remote control motor fixed on the inner side of the built-in lateral shovel plate, a driving gear mounted on the rotating shaft of the remote control motor, and a passive gear mounted on the inner end of the worm and meshing with the driving gear; The four studs on the built-in lateral shovel plate are inserted one by one into the guide holes in the four top supports of the two tilting mechanisms, and then the four anti-slip nuts are installed one by one at the bottom of the four studs, so that the built-in lateral shovel plate can be flipped 15° to 25° relative to the bucket bottom plate through the two tilting mechanisms.

3. The bucket for foundation pit soil leveling according to claim 1, characterized in that: The front longitudinal shovel plate is a wedge-shaped plate.

4. The bucket for foundation pit soil leveling according to claim 1, characterized in that: The two ends of the rear longitudinal roller are respectively installed on the rear end of the bucket bottom plate through roller brackets.

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