Novel slag drawing-out device for hole-forming operation of bridge main tower pile foundation

Abstract

The utility model discloses a novel bridge main tower pile foundation hole-forming operation slag drawing device, and relates to the field of slag drawing before pile foundation hole forming, the novel bridge main tower pile foundation hole-forming operation slag drawing device comprises a barrel body, the top end of the barrel body is welded with a connector, the bottom end of the barrel body is provided with a lower cover through a connecting mechanism, and the bottom end of the lower cover is provided with a first opening; an opening and closing plate is installed at the position, below the first opening, of the bottom end of the lower cover, the bottom end of the opening and closing plate is an inclined face, a second opening aligned with the first opening in the vertical direction is formed in the top end of the opening and closing plate, and a slag pulling-out opening is formed in the vertical face end of the slag pulling-out box; and an opening and closing mechanism extending into the lower cover is mounted below the lower cover. By arranging the opening and closing mechanism and the slag taking-out box, the purpose of taking out a large amount of disintegrating slag at a time can be achieved, the problem that the disintegrating slag falls down again after entering the device can be avoided, the slag taking-out amount is guaranteed, and therefore the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of pile hole slag removal, specifically a novel slag removal device for the pile foundation drilling operation of a main tower of a bridge. Background Technology

[0002] After the rotary drilling rig drives the drill bit through the drill rod to drill out of the pile hole, it is necessary to remove the debris at the bottom of the inner wall of the pile hole to reduce the impact of sediment and waste soil on the subsequent bearing capacity of the pile foundation.

[0003] In existing technologies, slag removal is generally achieved using a grab bucket. The rotating claws of the grab bucket are cone-shaped when closed and triangular when open. This method of slag removal has the problem of a small amount of slag removed at a time, so the grab bucket needs to be lowered into the pile hole multiple times, which is quite troublesome. Utility Model Content

[0004] The purpose of this utility model is to provide a novel slag removal device for the drilling operation of the main tower pile foundation of a bridge in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel slag removal device for drilling and piling of main tower pile foundations of a bridge, comprising a barrel body, a connector welded to the top of the barrel body, a lower cover installed at the bottom of the barrel body via a connecting mechanism, a first opening at the bottom of the lower cover, a slag removal box installed below the first opening at the bottom of the lower cover, the bottom of the slag removal box being inclined, a second opening aligned vertically with the first opening at the top of the slag removal box, a slag removal port on the vertical end of the slag removal box, and an opening and closing mechanism extending into the interior of the lower cover installed below the lower cover, the opening and closing mechanism being used to close or unclose the slag removal port.

[0006] As a further embodiment of this utility model: the connecting mechanism includes a fixed ear fixedly installed on the bottom of the outer periphery of the barrel, a rotating ear rotatably installed on the inner side of the fixed ear, and one end of the rotating ear is welded to the upper outer periphery of the lower cover.

[0007] As a further embodiment of this utility model: the connecting mechanism further includes a first pin block installed on the lower periphery of the barrel body, the first pin block being symmetrically arranged with the fixing ear, and a second pin block being welded to the upper periphery of the lower cover. When the lower cover is closed, it causes the second pin block to be located inside the first pin block. The first pin block and the second pin block have pin holes inside.

[0008] As a further embodiment of this utility model: the opening and closing mechanism includes a connecting plate located below the lower cover, and lifting rods that penetrate into the interior of the lower cover are welded to the top two sides of the connecting plate. A lifting plate is welded to the top of the lifting rod inside the lower cover, and an opening and closing plate extending downward is integrally formed at one end of the lifting plate.

[0009] As a further improvement of this utility model: a spring is fixedly installed between the bottom end of the opening and closing plate and the bottom end of the lower cover, and the connecting plate in the reset state is located below the slag removal box.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. By setting up an opening and closing mechanism and a slag removal box, it is possible to remove a large amount of slag at once, and to avoid the problem of slag falling down again after entering the device, thus ensuring the amount of slag removed and improving work efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0014] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0015] Figure 4 This is a schematic diagram of the installation of the spring of this utility model.

[0016] In the diagram: 1. Barrel body; 2. Lower cover; 3. Connector; 4. Fixing lug; 5. Rotating lug; 6. Slag removal box; 7. Slag removal port; 8. Opening and closing plate; 9. First pin block; 10. Second pin block; 11. Lifting rod; 12. Connecting plate; 13. Lifting plate; 14. Spring. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-4In this embodiment of the present invention, a novel slag removal device for drilling the main tower pile foundation of a bridge includes a barrel 1. A connector 3 is welded to the top of the barrel 1. A lower cover 2 is installed at the bottom of the barrel 1 through a connecting mechanism. A first opening is provided at the bottom of the lower cover 2. A slag removal box 6 is installed below the first opening at the bottom of the lower cover 2. The bottom of the slag removal box 6 is inclined. The top of the slag removal box 6 has a second opening aligned vertically with the first opening. A slag removal port 7 is provided on the vertical end of the slag removal box 6. An opening and closing mechanism extending into the lower cover 2 is installed below the lower cover 2. The opening and closing mechanism is used to close or unclose the slag removal port 7.

[0019] In this embodiment: First, before the device is lowered into the pile hole, the connector 3 is connected to the drill rod of the rotary excavator. Then, the device is lowered into the pile hole until the bottom of the device is below the pile hole. At this time, the opening and closing mechanism is opened, the slag removal port 7 is unsealed, and the rotary drilling rig is driven. The rotary drilling rig drives the barrel 1 to rotate through the connector 3. The barrel 1 drives the lower cover 2 to rotate through the connecting mechanism. During the rotation of the lower cover 2, the slag removal box 6 at its bottom is rotated. The debris located at the bottom of the inner wall of the pile hole enters the barrel 1 and the lower cover 2 through the slag removal port 7. After the slag removal is completed, the drill rod of the rotary excavator drives the device to move upward. At this time, the opening and closing mechanism is closed, the slag removal port 7 is sealed, and the device is moved outward. After the device is moved out of the pile hole, the connecting mechanism is opened to discharge the debris located inside the device. After the discharge is completed, the lower cover 2 is closed, and the device can be re-entered into the pile hole for slag removal.

[0020] Please refer to this carefully. Figure 1 and Figure 2 The connecting mechanism includes a fixed ear 4 fixedly installed on the bottom of the outer periphery of the barrel 1. A rotating ear 5 is rotatably installed on the inner side of the fixed ear 4. One end of the rotating ear 5 is welded to the upper outer periphery of the lower cover 2. The connecting mechanism also includes a first pin block 9 installed on the lower outer periphery of the barrel 1. The first pin block 9 is symmetrically arranged with the fixed ear 4. A second pin block 10 is welded to the upper outer periphery of the lower cover 2. When the lower cover 2 is closed, it drives the second pin block 10 to be located inside the first pin block 9. The first pin block 9 and the second pin block 10 have pin holes inside.

[0021] In this embodiment: After the device is moved out of the pile hole, the two parts of the pin shaft connected inside the pin hole are disassembled and removed (the pin shaft is divided into two parts, one part is a threaded sleeve structure and the other part is a stud mechanism). At this time, after the two parts of the pin shaft are completely closed with the first pin block 9 and the second pin block 10, the lower cover 2 rotates downward and opens under the action of gravity. At this time, the debris inside the device is discharged outward. After the discharge is completed, the lower cover 2 is closed again, and the two parts of the pin shaft are inserted into the pin hole to complete the threaded connection of the two parts of the pin shaft. The device is then re-entered into the pile hole to perform the slag removal operation.

[0022] Please refer to this carefully. Figure 1 , Figure 2 , Figure 3 and Figure 4 The opening and closing mechanism includes a connecting plate 12 located below the lower cover 2. Lifting rods 11 that penetrate into the interior of the lower cover 2 are welded to the top two sides of the connecting plate 12. A lifting plate 13 is welded to the top of the lifting rod 11 inside the lower cover 2. One end of the lifting plate 13 is integrally formed with a downwardly extending opening and closing plate 8.

[0023] In this embodiment: when the device is lowered into the pile hole, the connecting plate 12 first contacts the bottom of the inner wall of the pile hole. At this time, the connecting plate 12 cannot move downward, while the barrel 1 and the lower cover 2 can continue to move downward. Therefore, the opening and closing plate 8 moves upward relative to the slag removal box 6, so the opening and closing plate 8 opens and no longer closes the slag removal port 7. When the device rotates, the slag located at the bottom of the inner wall of the pile hole enters the interior of the slag removal box 6 through the slag removal port 7, and then enters the interior of the barrel 1 and the lower cover 2 through the first opening and the second opening, thus completing the slag removal operation.

[0024] After the slag removal is completed, the device moves upward under the drive of the rotating drill rod. At this time, the opening and closing plate 8 moves downward relative to the slag removal port 7 to close the slag removal port 7, thereby preventing the slag that has entered the barrel 1 and the lower cover 2 from being discharged out through the slag removal port 7.

[0025] Please refer to this carefully. Figure 3 and Figure 4 A spring 14 is fixedly installed between the bottom end of the opening and closing plate 8 and the bottom end of the lower cover 2, and the connecting plate 12 in the reset state is located below the slag removal box 6.

[0026] In this embodiment: the spring 14 is set so that when the barrel 1 and the lower cover 2 move upward, the spring 14 resets and drives the opening and closing plate 8 to close quickly.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A novel slag removal device for drilling and piling of main tower pile foundations of a bridge, comprising a barrel (1), wherein a connector (3) is welded to the top of the barrel (1), characterized in that, The bottom of the barrel (1) is fitted with a lower cover (2) via a connecting mechanism. The bottom of the lower cover (2) has a first opening. A slag removal box (6) is installed below the first opening at the bottom of the lower cover (2). The bottom of the slag removal box (6) is inclined. The top of the slag removal box (6) has a second opening aligned with the first opening in the vertical direction. A slag removal port (7) is provided on the vertical end of the slag removal box (6). An opening and closing mechanism extending into the lower cover (2) is installed below the lower cover (2). The opening and closing mechanism is used to close or unclose the slag removal port (7).

2. The novel muck removal device for drilling and piling of main tower pile foundations for bridges according to claim 1, characterized in that, The connecting mechanism includes a fixed ear (4) fixedly installed on the bottom of the outer periphery of the barrel (1), and a rotating ear (5) is rotatably installed on the inner side of the fixed ear (4). One end of the rotating ear (5) is welded to the upper outer periphery of the lower cover (2).

3. A novel muck-removing device for drilling and piling of main tower pile foundations for bridges according to claim 2, characterized in that, The connecting mechanism also includes a first pin block (9) installed on the lower outer periphery of the barrel body (1). The first pin block (9) is symmetrically arranged with the fixing ear (4). A second pin block (10) is welded on the upper outer periphery of the lower cover (2). When the lower cover (2) is closed, it drives the second pin block (10) to be located inside the first pin block (9). The first pin block (9) and the second pin block (10) have pin holes inside.

4. A novel muck-removing device for drilling and piling of main tower pile foundations for bridges according to claim 3, characterized in that, The opening and closing mechanism includes a connecting plate (12) located below the lower cover (2). The top two sides of the connecting plate (12) are welded with lifting rods (11) that penetrate into the interior of the lower cover (2). The top of the lifting rod (11) is welded with a lifting plate (13) located inside the lower cover (2). One end of the lifting plate (13) is integrally formed with a downwardly extending opening and closing plate (8).

5. A novel muck-removing device for drilling and piling of main tower pile foundations for bridges according to claim 4, characterized in that, A spring (14) is fixedly installed between the bottom end of the opening and closing plate (8) and the bottom end of the lower cover (2), and the connecting plate (12) in the reset state is located below the slag removal box (6).

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