Building deep foundation pit construction equipment and construction method thereof

Abstract

This invention relates to the field of deep foundation pit cleaning technology, and discloses a construction equipment and method for deep foundation pits, including a frame, and further comprising: a crossbeam, which is horizontally fixed between two horizontal sides of the frame; a hoisting assembly, which is disposed at the bottom of the crossbeam and is used to hoist out and clean impurities and soil from the deep foundation pit; a sway detection assembly, which is disposed on the hoisting assembly and is used to detect the sway amplitude of the hoisted object during hoisting; and a sway elimination assembly, which is disposed on the hoisting assembly and is used to eliminate the sway of the hoisted object. This invention can quickly suppress the lateral sway of the bucket, reduce the probability of the bucket colliding with the inner wall of the deep foundation pit, prevent impurities and soil from falling out of the bucket, and improve the stability and cleaning efficiency during the deep foundation pit cleaning process.

Description

Technical Field

[0001] This invention relates to the field of deep foundation pit cleaning technology, and in particular to a construction equipment and method for deep foundation pit construction. Background Technology

[0002] In the process of building construction, underground utility tunnel construction, pile foundation construction and deep foundation pit excavation, a large amount of gravel, soil and construction impurities are usually generated inside the deep foundation pit. In order to avoid the accumulation of impurities affecting subsequent construction, it is usually necessary to use hoisting equipment in conjunction with a bucket to lift and clean the impurities inside the deep foundation pit. In the existing technology, a drive mechanism is generally used to drive a drum to wind up a steel wire rope, so that the bucket can be raised and lowered inside the deep foundation pit, thereby realizing the transfer and cleaning of impurities and soil.

[0003] Existing deep foundation pit impurity lifting equipment still has certain shortcomings in actual use. Since the bucket is suspended by steel wire rope, it is easily affected by factors such as inertia, steel wire rope swaying, changes in lifting speed, and airflow disturbance inside the deep foundation pit during the lifting process. This causes the bucket to swing significantly laterally during the ascent. When the swing amplitude is large, not only is it easy for the impurities and soil inside the bucket to fall out, reducing the cleaning efficiency inside the deep foundation pit, but the swinging bucket may also collide with the inner wall of the deep foundation pit, causing damage to the inner wall and affecting construction safety and usage effect. Therefore, there is an urgent need to design a construction equipment for deep foundation pits. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a construction equipment and method for deep foundation pit construction.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A deep foundation pit construction device includes a frame, with symmetrically arranged supports fixedly installed at the bottom of the frame for supporting the frame, and further includes: The crossbeam is horizontally fixed between the two horizontal sides of the frame. The crossbeam is used to support and limit other components. The lifting assembly is located at the bottom of the crossbeam and is used to lift out and clean up impurities and soil in the deep foundation pit. The sway detection component is installed on the hoisting component and is used to detect the sway amplitude of the hoisted object during hoisting. The anti-sway component is installed on the hoisting component. It is used to eliminate the sway of the hoisted object, ensuring that the hoisted object will not swing too much, which could cause it to fall or damage the deep foundation pit.

[0006] As a further technical solution of the present invention, the hoisting assembly includes: a sliding plate, which is slidably disposed at the bottom of the crossbeam, and an electric sliding table is embedded in the bottom of the crossbeam. The output end of the electric sliding table is installed at the top of the sliding plate to drive the sliding plate to move longitudinally, so as to facilitate the removal of the hoisted impurities from the deep foundation pit.

[0007] As a further technical solution of the present invention, a U-shaped block is fixedly installed at the bottom of the slide plate, and a circular roller is horizontally rotatably installed between the two vertical sides of the U-shaped block. A steel wire rope is wound around the surface of the circular roller, and the top end of the steel wire rope is fixed to the circular roller. A hook is attached to the end of the steel wire rope, and a bucket is hung on the hook. The bucket is used to collect impurities in the deep pit.

[0008] As a further technical solution of the present invention, the swing detection component includes: an outer fixing ring, which is horizontally arranged below the slide plate and sleeved on the surface of the wire rope. Two symmetrically arranged fixing rods are vertically fixed at the top of the outer fixing ring, and the top ends of the two fixing rods are fixedly installed at the bottom of the slide plate. The fixing rods are used to fix and limit the outer fixing ring.

[0009] As a further technical solution of the present invention, an inner movable ring is sleeved inside the outer fixed ring, and the inner movable ring is also sleeved on the surface of the wire rope. Multiple elastic ropes are installed in a ring-shaped and uniformly distributed manner on the inner ring of the outer fixed ring, and the ends of the elastic ropes are fixedly installed on the outer ring surface of the inner movable ring for connecting the outer fixed ring and the inner movable ring. When the wire rope swings, it will drive the inner movable ring to swing, thereby further realizing the detection of the wire rope. The elastic rope is used to make the inner movable ring quickly reset.

[0010] As a further technical solution of the present invention, the oscillation elimination component includes: an arc-shaped tube, which is disposed between the U-shaped block and the inner movable ring, and an installation rod is vertically fixedly installed on the surface of the arc-shaped tube. The top end of the installation rod is fixedly installed at the bottom of the vertical side of the U-shaped block for installing the arc-shaped tube, thereby ensuring the stability of the arc-shaped tube. A connecting rope is attached to one end of the top surface of the inner movable ring, and the connecting rope passes through the arc-shaped tube. It should be noted that the inner diameter of the arc-shaped tube and the diameter of the connecting rope are matched. The arc-shaped tube is used to limit the connecting rope so that when the inner movable ring moves, the top end of the connecting rope can move in a specified direction.

[0011] As a further technical solution of the present invention, a first conical roller and a second conical roller are horizontally rotatably mounted on the outer side of one of the vertical sides of the U-shaped block. The end face of the second conical roller is fixedly mounted at the center of the end face of the circular roller through a connecting shaft. A belt that can move laterally is sleeved on the surface of the first conical roller and the second conical roller. Through the arrangement of the belt, the first conical roller and the second conical roller, the rotation speed of the second conical roller can be changed while the belt is moved. A drive motor is installed at the bottom of the slide plate. The output shaft of the drive motor is installed at the center of the end face of the first conical roller and is used to drive the first conical roller to rotate.

[0012] As a further technical solution of the present invention, a sleeve plate is horizontally arranged between the first conical roller and the second conical roller, and a rectangular groove running from top to bottom is opened at both ends of the sleeve plate. The two vertical sides of the belt pass through the two rectangular grooves respectively, which are used to limit the belt and also to drive the belt to move by moving the sleeve plate, so as to change the rotation speed of the second conical roller. A spring rod is horizontally installed on the side of the sleeve plate, and the other end of the spring rod is fixedly installed on the side of the vertical side of the U-shaped block, which is used to limit the sleeve plate and ensure the stability of the movement path of the sleeve plate.

[0013] As a further technical solution of the present invention, U-shaped rods are fixedly installed at both ends of the sleeve plate, and connecting blocks are fixed at the lower horizontal ends of the two U-shaped rods. The side of the connecting blocks is fixedly connected to the end of the connecting rope for connecting the connecting rope and the sleeve plate, thereby ensuring that the sleeve plate can move when the connecting rope moves, so as to change the rotation speed of the second conical roller.

[0014] A method for constructing deep foundation pits includes the following steps: S1: When it is necessary to clean the impurities inside the deep foundation pit, first place the construction equipment above the deep foundation pit and hang the bucket on the hook. Drive the first conical roller to rotate through the drive motor. The rotation of the first conical roller drives the belt to rotate. The rotation of the belt drives the second conical roller to rotate. The rotation of the second conical roller drives the round roller to rotate. The rotation of the round roller unwinds the wire rope. The unwinding of the wire rope will lower the bucket into the deep foundation pit. Then, the impurities in the deep foundation pit are placed inside the bucket. S2: When the inside of the barrel is full of impurities or soil, the reverse rotation of the drive motor can move the barrel upwards via a steel wire rope, which can clean the impurities and soil inside during deep foundation pit construction. S3: When the barrel shakes, it causes the wire rope to swing. The swinging wire rope will contact the inner movable ring and cause the inner movable ring to swing. The movement of the inner movable ring will cause the connecting rope connected to it to move. Due to the setting of the arc tube, the movement path of the connecting rope is restricted. When the end of the connecting rope follows the movement of the inner movable ring, it will cause the top of the connecting rope to move towards the arc tube. The movement of the top of the connecting rope will cause the connecting block to move. The movement of the connecting block will cause the two U-shaped rods to move. The movement of the two U-shaped rods will cause the sleeve plate to move. The movement of the sleeve plate will cause the belt to move towards the U-shaped block. The movement of the belt will change the transmission ratio between the first conical roller and the second conical roller. This will further accelerate the first conical roller to drive the second conical roller to rotate. The accelerated rotation of the second conical roller will drive the round roller to rotate faster. The accelerated rotation of the round roller will drive the wire rope to wind up faster, so that the barrel moves upward stably. S4: Once the barrel stabilizes and stops swinging significantly, the wire rope will no longer exert force on the inner moving ring, and all components will gradually return to their normal working state.

[0015] The beneficial effects of this invention are as follows: This invention, through the setting of wire rope swing linkage speed regulation, can sense the swaying state of the barrel in real time during the barrel lifting process, and automatically change the transmission ratio between the first and second conical rollers when the barrel sway amplitude increases, so as to increase the winding speed of the wire rope by the rollers and realize the accelerated lifting of the barrel. During the lifting acceleration process, the tension of the wire rope increases, so that the barrel is subjected to a stronger return and recovery effect, thereby quickly suppressing the lateral swaying of the barrel, reducing the probability of the barrel colliding with the inner wall of the deep foundation pit, avoiding the falling of impurities and soil inside the barrel, and improving the stability and cleaning efficiency in the deep foundation pit cleaning process. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a deep foundation pit construction equipment proposed in this invention; Figure 2 This is a schematic diagram of the structure of a deep foundation pit construction equipment proposed in this invention after removing one side of the support; Figure 3 for Figure 2 Enlarged view of section A; Figure 4 This is a schematic diagram of the structure of a deep foundation pit construction equipment proposed in this invention after removing the support and frame; Figure 5 This is a schematic diagram of the beam structure of a deep foundation pit construction equipment proposed in this invention; Figure 6 This is a schematic diagram of a U-shaped block and its connection structure for a deep foundation pit construction equipment proposed in this invention; Figure 7 This is a schematic diagram of the first and second conical roller structures of a deep foundation pit construction equipment proposed in this invention. Figure 8 This is a cross-sectional schematic diagram of the belt conveyor and arc-shaped pipe of a deep foundation pit construction equipment proposed in this invention.

[0017] In the diagram: 1. Frame; 2. Support; 3. Crossbeam; 4. Hook; 5. Barrel; 6. Rectangular groove; 7. Outer fixing ring; 8. Electric slide; 9. Slide plate; 10. U-shaped block; 11. Steel wire rope; 12. Fixing rod; 13. Spring rod; 14. Inner movable ring; 15. Elastic rope; 16. Circular roller; 17. Drive motor; 18. First conical roller; 19. Second conical roller; 20. Arc-shaped tube; 21. Mounting rod; 22. Connecting rope; 23. Connecting block; 24. U-shaped rod; 25. Belt; 26. Sleeve plate. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see the appendix Figure 1 -Appendix Figure 8 A deep foundation pit construction device includes a frame 1, with symmetrically arranged supports 2 fixedly installed at the bottom of the frame 1 for supporting the frame 1. It also includes a crossbeam 3, a hoisting assembly, a sway detection assembly, and a sway elimination assembly. The crossbeam 3 is horizontally fixed between two horizontal sides of the frame 1 and is used to support and limit other components. The hoisting assembly is located at the bottom of the crossbeam 3 and is used to hoist out and clean impurities and soil from the deep foundation pit. The sway detection assembly is located on the hoisting assembly and is used to detect the sway amplitude of the hoisted object during hoisting. The sway elimination assembly is located on the hoisting assembly and is used to eliminate the sway of the hoisted object, ensuring that the hoisted object does not sway excessively, thus preventing it from falling or damaging the deep foundation pit.

[0021] Please see the appendix Figure 1 -Appendix Figure 3 In a preferred embodiment, the hoisting assembly includes: a sliding plate 9, which is slidably disposed at the bottom of the crossbeam 3, and an electric slide table 8 is embedded at the bottom of the crossbeam 3. The output end of the electric slide table 8 is installed at the top of the sliding plate 9 to drive the sliding plate 9 to move longitudinally, so as to facilitate the removal of hoisted impurities from the deep foundation pit.

[0022] Please see the appendix Figure 1 -Appendix Figure 3 In a preferred embodiment, a U-shaped block 10 is fixedly installed at the bottom of the slide plate 9, and a circular roller 16 is horizontally rotatably installed between the two vertical sides of the U-shaped block 10. A steel wire rope 11 is wound around the surface of the circular roller 16, and the top end of the steel wire rope 11 is fixed to the circular roller 16. A hook 4 is tied to the end of the steel wire rope 11, and a bucket 5 is hung on the hook 4. The bucket 5 is used to collect impurities in the deep pit.

[0023] Please see the appendix Figure 2 -Appendix Figure 8 In a preferred embodiment, the swing detection component includes: an outer fixing ring 7, which is horizontally positioned below the slide plate 9 and sleeved on the surface of the wire rope 11. Two symmetrically arranged fixing rods 12 are vertically fixed to the top of the outer fixing ring 7, and the top ends of the two fixing rods 12 are fixedly installed at the bottom of the slide plate 9. The fixing rods 12 are used to fix and limit the outer fixing ring 7.

[0024] Please see the appendix Figure 2 -Appendix Figure 8 In a preferred embodiment, an inner movable ring 14 is sleeved inside the outer fixed ring 7, and the inner movable ring 14 is also sleeved on the surface of the wire rope 11. A plurality of elastic ropes 15 are installed in a ring evenly distributed on the inner ring of the outer fixed ring 7, and the ends of the elastic ropes 15 are fixedly installed on the outer ring surface of the inner movable ring 14 for connecting the outer fixed ring 7 and the inner movable ring 14. When the wire rope 11 swings, it will drive the inner movable ring 14 to swing, thereby further realizing the detection of the wire rope 11. The elastic ropes 15 are used to make the inner movable ring 14 quickly reset.

[0025] Please see the appendix Figure 2 -Appendix Figure 8 In a preferred embodiment, the anti-sway assembly includes: an arc-shaped tube 20, which is disposed between the U-shaped block 10 and the inner movable ring 14, and a mounting rod 21 is vertically fixedly installed on the surface of the arc-shaped tube 20. The top end of the mounting rod 21 is fixedly installed at the bottom of the vertical side of the U-shaped block 10 for installing the arc-shaped tube 20, thus ensuring the stability of the arc-shaped tube 20. A connecting rope 22 is attached to one end of the top surface of the inner movable ring 14, and the connecting rope 22 passes through the arc-shaped tube 20. It should be noted that the inner diameter of the arc-shaped tube 20 is matched with the diameter of the connecting rope 22. The arc-shaped tube 20 is used to limit the connecting rope 22 so that when the inner movable ring 14 moves, the top end of the connecting rope 22 can move in a specified direction.

[0026] Please see the appendix Figure 3 -Appendix Figure 8 In a preferred embodiment, a first conical roller 18 and a second conical roller 19 are horizontally rotatably mounted on the outer side of one of the vertical sides of the U-shaped block 10. The end face of the second conical roller 19 is fixedly mounted at the center of the end face of the circular roller 16 via a connecting shaft. A transversely movable belt 25 is sleeved on the surface of the first conical roller 18 and the second conical roller 19. Through the arrangement of the belt 25, the first conical roller 18 and the second conical roller 19, the rotational speed of the second conical roller 19 can be changed while the belt 25 is moved. A drive motor 17 is mounted at the bottom of the slide plate 9. The output shaft of the drive motor 17 is mounted at the center of the end face of the first conical roller 18 to drive the first conical roller 18 to rotate.

[0027] Please see the appendix Figure 3 -Appendix Figure 8In a preferred embodiment, a sleeve plate 26 is horizontally arranged between the first conical roller 18 and the second conical roller 19, and rectangular grooves 6 extending from top to bottom are opened at both ends of the sleeve plate 26. The two vertical sides of the belt 25 pass through the two rectangular grooves 6 respectively, which are used to limit the belt 25 and also to move the belt 25 by moving the sleeve plate 26, so as to change the rotation speed of the second conical roller 19. A spring rod 13 is horizontally installed on the side of the sleeve plate 26, and the other end of the spring rod 13 is fixedly installed on the side of the vertical side of the U-shaped block 10, which is used to limit the sleeve plate 26 and ensure the stability of the movement path of the sleeve plate 26.

[0028] Please see the appendix Figure 5 -Appendix Figure 8 In a preferred embodiment, U-shaped rods 24 are fixedly installed at both ends of the sleeve plate 26, and connecting blocks 23 are fixed at the lower horizontal ends of the two U-shaped rods 24. The side of the connecting blocks 23 is fixedly connected to the end of the connecting rope 22 for connecting the connecting rope 22 and the sleeve plate 26, thereby ensuring that the connecting rope 22 can drive the sleeve plate 26 to move when it moves, so as to change the rotation speed of the second conical roller 19.

[0029] When it is necessary to clean the impurities inside the deep foundation pit, the construction equipment is first placed above the deep foundation pit, and the bucket 5 is hung on the hook 4. The first conical roller 18 is driven to rotate by the drive motor 17. The rotation of the first conical roller 18 drives the belt 25 to rotate. The rotation of the belt 25 drives the second conical roller 19 to rotate. The rotation of the second conical roller 19 drives the circular roller 16 to rotate. The rotation of the circular roller 16 unwinds the wire rope 11. The unwinding of the wire rope 11 will lower the bucket 5 into the deep foundation pit. Then, the impurities in the deep foundation pit are placed inside the bucket 5. When the inside of the barrel 5 is full of impurities or soil, the reverse rotation of the drive motor 17 can drive the barrel 5 to move upward through the steel wire rope 11, so that the impurities and soil inside can be cleaned during the construction of the deep foundation pit. When the bucket 5 is lifted upwards, the bucket 5 may shake. If the shaking amplitude is too large, not only may the impurities and soil inside the bucket 5 fall out, reducing the cleaning efficiency, but the bucket 5 and the falling impurities and soil may also hit the inner wall of the deep foundation pit, causing damage to the inner wall of the deep foundation pit and reducing the effectiveness of use. When the barrel 5 shakes, it causes the wire rope 11 to swing. The swinging wire rope 11 contacts the inner movable ring 14, causing the inner movable ring 14 to swing. The movement of the inner movable ring 14 causes the connecting rope 22 connected to it to move. Due to the setting of the arc tube 20, the movement path of the connecting rope 22 is restricted. When the end of the connecting rope 22 moves with the inner movable ring 14, it causes the top of the connecting rope 22 to move closer to the arc tube 20. The movement of the top of the connecting rope 22 causes the connecting block 23 to move. The movement of the connecting block 23 causes the two U-shaped rods 24 to move. The movement of the two U-shaped rods 24 causes the sleeve plate 26 to move. The movement of the sleeve plate 26 causes the belt 25 to move closer to the U-shaped block 10. The movement of the belt 25 changes the transmission ratio between the first conical roller 18 and the second conical roller 19. This further accelerates the first conical roller 18, causing the second conical roller 19 to rotate. The accelerated rotation of the second conical roller 19 causes the circular roller 16 to rotate faster. The accelerated rotation of the circular roller 16 causes the wire rope 11 to wind up faster. The method of accelerating the upward lifting of the barrel 5 in one step is as follows: During the normal uniform upward movement, the tension of the steel wire rope 11 is mainly used to balance the weight of the barrel 5. At this time, the tension of the steel wire rope 11 is limited. After the barrel 5 shifts laterally, the ability of the steel wire rope 11 to return the barrel 5 to its correct position is relatively weak, so the barrel 5 will continue to swing. When the steel wire rope 11 accelerates upward, the barrel 5 will accelerate upward along with the steel wire rope 11, requiring additional upward force. Therefore, the tension inside the steel wire rope 11 will increase significantly. After the tension increases, the steel wire rope 11 will be in a more taut state. When the barrel 5 shifts laterally, the tension of the steel wire rope 11 will decompose more quickly into a restoring effect pointing towards the center, making the barrel 5 more inclined to return to the position directly below the steel wire rope 11. The larger tension will also reduce the time of free lateral swing of the barrel 5, shorten the swing period, and prevent the barrel 5 from forming a large lateral displacement before being pulled back by a stronger restoring tension. Therefore, the swing of the barrel 5 can be reduced, allowing the barrel 5 to move upward stably. Once the barrel 5 stabilizes and stops swinging significantly, the wire rope 11 will no longer exert force on the inner movable ring 14, and all components will gradually return to their normal working state. Through the above methods, the bucket 5 can be lifted stably and the swing amplitude of the bucket 5 can be monitored in real time. When the swing amplitude of the bucket 5 is too large, the swing amplitude of the bucket 5 is automatically eliminated by speeding up, thus ensuring the stability of lifting the bucket 5 and improving the use effect of the equipment.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A deep foundation pit construction equipment, comprising a frame (1), characterized in that, Also includes: A crossbeam (3) is horizontally fixed between two horizontal sides of the frame (1); The hoisting assembly is located at the bottom of the crossbeam (3) and is used to lift out and clean up impurities and soil in the deep foundation pit. A swing detection component is provided on the hoisting component and is used to detect the swing amplitude of the hoisted object during hoisting. An anti-sway component is provided on the hoisting assembly and is used to eliminate the sway of the hoisted object.

2. The deep foundation pit construction equipment according to claim 1, characterized in that, The hoisting assembly includes: a sliding plate (9), which is slidably disposed at the bottom of the crossbeam (3), and an electric slide (8) is embedded at the bottom of the crossbeam (3), with the output end of the electric slide (8) installed at the top of the sliding plate (9).

3. The deep foundation pit construction equipment according to claim 2, characterized in that, A U-shaped block (10) is fixedly installed at the bottom of the slide (9), and a circular roller (16) is horizontally rotated between the two vertical sides of the U-shaped block (10). A steel wire rope (11) is wound around the surface of the circular roller (16), and a hook (4) is attached to the end of the steel wire rope (11). A bucket (5) is hung on the hook (4).

4. The deep foundation pit construction equipment according to claim 3, characterized in that, The swing detection component includes an outer fixing ring (7), which is horizontally positioned below the slide plate (9) and sleeved on the surface of the wire rope (11). The top of the outer fixing ring (7) has two symmetrically arranged fixing rods (12) vertically fixed, and the top ends of the two fixing rods (12) are fixedly installed at the bottom of the slide plate (9).

5. The deep foundation pit construction equipment according to claim 4, characterized in that, The outer fixed ring (7) is fitted with an inner movable ring (14), and the inner movable ring (14) is also fitted on the surface of the wire rope (11). The inner ring of the outer fixed ring (7) is fitted with a plurality of elastic ropes (15) evenly distributed in a ring, and the ends of the elastic ropes (15) are fixedly installed on the outer ring surface of the inner movable ring (14).

6. The deep foundation pit construction equipment according to claim 5, characterized in that, The anti-sway assembly includes an arc-shaped tube (20), which is disposed between the U-shaped block (10) and the inner movable ring (14), and a mounting rod (21) is vertically fixedly installed on the surface of the arc-shaped tube (20). The top end of the mounting rod (21) is fixedly installed at the bottom of the vertical side of the U-shaped block (10). A connecting rope (22) is tied to one end of the top surface of the inner movable ring (14), and the connecting rope (22) passes through the arc-shaped tube (20).

7. The deep foundation pit construction equipment according to claim 6, characterized in that, The U-shaped block (10) has a first conical roller (18) and a second conical roller (19) mounted horizontally on one of its vertical sides. The end face of the second conical roller (19) is fixedly mounted at the center of the end face of the round roller (16) via a connecting shaft. The surfaces of the first conical roller (18) and the second conical roller (19) are fitted with a belt (25) that can move laterally.

8. The deep foundation pit construction equipment according to claim 7, characterized in that, A sleeve plate (26) is horizontally arranged between the first conical roller (18) and the second conical roller (19), and both ends of the sleeve plate (26) are provided with rectangular grooves (6) that run from top to bottom. The two vertical sides of the belt (25) pass through the two rectangular grooves (6) respectively. A spring rod (13) is horizontally installed on the side of the sleeve plate (26), and the other end of the spring rod (13) is fixedly installed on the side of the vertical side of the U-shaped block (10).

9. The deep foundation pit construction equipment according to claim 8, characterized in that, Both ends of the sleeve plate (26) are fixedly installed with U-shaped rods (24), and the lower horizontal ends of the two U-shaped rods (24) are fixed with connecting blocks (23), and the sides of the connecting blocks (23) are fixedly connected to the ends of the connecting ropes (22).

10. A method for constructing a deep foundation pit, using the deep foundation pit construction equipment described in any one of claims 1-9, characterized in that, Includes the following steps: S1: When it is necessary to clean the impurities inside the deep foundation pit, first place the construction equipment above the deep foundation pit and hang the bucket (5) on the hook (4). Drive the first conical roller (18) to rotate through the drive motor (17). The rotation of the first conical roller (18) drives the belt (25) to rotate. The rotation of the belt (25) drives the second conical roller (19) to rotate. The rotation of the second conical roller (19) drives the round roller (16) to rotate. The rotation of the round roller (16) unwinds the wire rope (11). The unwinding of the wire rope (11) will lower the bucket (5) into the deep foundation pit. Then, the impurities in the deep foundation pit are placed inside the bucket (5). S2: When the barrel (5) is filled with impurities or soil, the reverse rotation of the drive motor (17) can drive the barrel (5) upward through the wire rope (11), so that the impurities and soil inside can be cleaned during the construction of the deep foundation pit. S3: When the barrel (5) shakes, it will cause the wire rope (11) to swing. The swing of the wire rope (11) will contact the inner movable ring (14) and cause the inner movable ring (14) to swing. The movement of the inner movable ring (14) will cause the connecting rope (22) connected to it to move. Due to the setting of the arc tube (20), the movement path of the connecting rope (22) is restricted. When the end of the connecting rope (22) moves with the inner movable ring (14), it will cause the top of the connecting rope (22) to move closer to the arc tube (20). The movement of the top of the connecting rope (22) will cause the connecting block (23) to move. The movement of the connecting block (23) will cause the connecting block (23) to move. The movement of the two U-shaped rods (24) causes the two U-shaped rods (24) to move, which in turn causes the sleeve plate (26) to move. The movement of the sleeve plate (26) causes the belt (25) to move closer to the U-shaped block (10). The movement of the belt (25) will change the transmission ratio between the first conical roller (18) and the second conical roller (19). This will further accelerate the first conical roller (18) to drive the second conical roller (19) to rotate. The accelerated rotation of the second conical roller (19) will drive the round roller (16) to rotate faster. The accelerated rotation of the round roller (16) will drive the wire rope (11) to wind up faster, so that the barrel (5) moves upward stably. S4: When the barrel (5) stabilizes and no longer swings significantly, the wire rope (11) no longer exerts force on the inner moving ring (14), and each component will gradually return to its normal working state.

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