A drilling device for pebble formation

Abstract

The invention discloses a pebble formation drilling device, which belongs to the technical field of formation drilling. Through drilling with a drill barrel, pebbles in the drill barrel are removed by other equipment to form a preliminary lower drill hole. After drilling to a designated position, a moving seat stops vertical movement, and a motor drives the drill barrel to rotate slowly, so that quick-drying concrete flowing along a drill barrel circulation groove between the drill hole and the drill barrel is immersed in the pebble layer, and it is ensured that the drill barrel and the drill hole are not adhered. After the quick-drying concrete is initially solidified, the drill barrel can be withdrawn to form a pebble layer hole that will not collapse. The drilling device is suitable for drilling operations in pebble layers, ensures rapid formation of the drill hole, is easy to operate, and the drill barrel maintains support for the drill hole during the reinforcement process to prevent the drill hole from collapsing before reinforcement.

Description

Technical Field

[0001] The invention belongs to the technical field of stratum drilling, and in particular relates to a pebble stratum drilling device. Background Art

[0002] Cast-in-place pile foundation is a ground treatment technology that forms pile foundations by drilling holes in the ground and pouring concrete into them to enhance the bearing capacity and stability of the foundation. This technology is widely used in construction projects, especially in infrastructure construction that needs to bear heavy loads or in complex geological conditions.

[0003] When this project is carried out on the ground pebble layer terrain, the pores of the pebble layer are large and the stratum is loose. The hole wall of the pebble layer lacks sufficient cohesion and is prone to deformation or collapse during or after drilling. During the process of applying mixed concrete after drilling, the concrete is prone to fall off or uneven due to the instability of the hole wall, affecting the subsequent construction quality. Summary of the invention

[0004] In view of this, the object of the present invention is to provide a pebble formation drilling device to avoid the collapse of the hole surface during and after drilling, and to assist in the rapid application of reinforced concrete.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] The invention comprises a base, wherein a plurality of vertical rail columns are arranged on the base, a movable seat is arranged on the vertical rail columns for vertical movement at the same time, a drill tube is rotatably arranged on the movable seat, when drilling, the vertical rail columns are arranged around the required drilling axis, and the drill tube coincides with the required drilling axis; at least one vertical circulation groove is evenly arranged around the side surface of the drill tube, after the drill tube drills to the designated position, quick-drying concrete is poured into the circulation groove, and as the drill tube rotates slowly, the quick-drying concrete is immersed in the pebble layer on the side wall of the borehole and solidifies.

[0007] Furthermore, it also includes a pouring part, which includes a vertical flow pipe and a bucket connected to the flow pipe. The flow pipe moves along the flow groove so that the bucket is located above the base, and the flow pipe passes through the base and extends into the top of the drill hole.

[0008] Furthermore, the bucket bin opening is upward, and a bin cover is provided to cover the bucket bin opening. The top of the bin cover is provided with an inclined surface, and an inclined guide block with an inclined surface on the ground is fixed on the vertical rail column. After the quick-drying concrete is added to the bucket bin, the bin cover is slid onto the top opening of the bucket bin. As the drill barrel rotates, the inclined guide block presses down the bin cover, so that the quick-drying concrete in the bucket bin is pressed into the flow groove in the drill barrel.

[0009] Furthermore, it also includes a retaining groove arranged in close contact with the circulation groove, the retaining groove is used to isolate the quick-drying concrete from the circulation groove, and the tops of several retaining grooves are fixedly connected to the first connecting frame at the same time. After the quick-drying concrete is poured, the retaining groove is pulled out upward.

[0010] Furthermore, it also includes a blocking column arranged in the blocking groove. When drilling, the outer side of the blocking column and the outer side of the drill tube have the same arc surface. When the drilling is completed, the blocking column is removed; the top ends of several of the blocking columns are fixedly connected to a second connecting frame at the same time.

[0011] Furthermore, the base is evenly weighted and arranged as a disc structure, and a through hole for the drill tube to pass through is provided on the base, so that the base can press down on the pebble layer when drilling.

[0012] The beneficial effects of the present invention are:

[0013] The present invention uses a drill tube to drill down, and pebbles in the drill tube are cleared by other equipment to form a preliminary drill hole. After drilling to a designated position, the moving seat stops vertical movement, and a motor drives the drill tube to rotate slowly, so that the quick-drying concrete flowing along the drill tube flow groove between the drill hole and the drill tube is immersed in the pebble layer, and it is ensured that the drill tube and the drill hole are not adhered. After the quick-drying concrete is initially solidified, the drill tube can be pulled out to form a pebble layer hole that will not collapse. The drilling equipment is suitable for drilling operations in a pebble layer, ensures rapid formation of the drill hole, is easy to operate, and the drill tube maintains support for the drill hole during the reinforcement process to prevent the drill hole from collapsing before reinforcement.

[0014] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0016] Figure 1 A schematic diagram of drilling a hole using a drilling device according to an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the drill barrel structure according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the irrigation part according to an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of a drilling cross section of a drilling device according to an embodiment of the present invention;

[0020] Figure 5 for Figure 4A magnified schematic diagram of point A;

[0021] Figure 6 This is a schematic diagram of the contact between the inclined guide block and the bin cover according to an embodiment of the present invention;

[0022] Figure 7 This is a cross-sectional view of the position of the flow groove of the drill tube according to an embodiment of the present invention;

[0023] Figure 8 This is a schematic diagram of the retaining groove and retaining column structure of an embodiment of the present invention;

[0024] The markings in the attached drawings are as follows: 1. base; 2. vertical rail column; 21. inclined guide block; 3. moving seat; 4. drill tube; 41. flow groove; 42. retaining groove; 43. first connecting frame; 44. retaining column; 45. second connecting frame; 6. irrigation part; 61. flow pipe; 62. bucket bin; 63. bin cover. DETAILED DESCRIPTION

[0025] like Figure 1 As shown, the present invention discloses a pebble formation drilling equipment, including a base 1, three vertical rail columns 2 are arranged on the base 1, a moving seat 3 is arranged on the vertical rail column 2 for vertical movement at the same time, a drill tube 4 is rotatably arranged on the moving seat 3, when drilling, the vertical rail column 2 is arranged around the required drilling axis, and the drill tube 4 coincides with the required drilling axis; the drill tube 4 drills downward by the up and down movement of the moving seat 3 and the motor on the moving seat 3 drives the drill tube 4 to rotate; after drilling to the specified position, the wall reinforcement of the pebble layer can be opened, and the drill tube 4 is provided with a reinforcement structure, such as Figure 2 As shown, three vertical flow grooves 41 are evenly arranged around the outer side surface of the drill tube 4. After the drill tube 4 is drilled to the specified position, quick-drying concrete is poured into the flow groove 41. The drill tube 4 is driven by a motor to rotate slowly, so that the quick-drying concrete is immersed in the pebble layer on the side wall of the borehole and solidified.

[0026] This structure, such as Figure 4 As shown, drilling is carried out through the drill tube 4, and the pebbles in the drill tube 4 are cleared by other equipment to form a preliminary lower drill hole. After drilling to the specified position, the movable seat 3 stops vertical movement, and the motor drives the drill tube 4 to rotate slowly, so that the quick-drying concrete flowing into the borehole and the drill tube 4 along the flow groove 41 of the drill tube 4 is immersed in the pebble layer, and it is ensured that the drill tube 4 and the borehole are not sticky. After the quick-drying concrete is initially solidified, the drill tube 4 can be pulled out to form a pebble layer hole that will not collapse. This drilling equipment is suitable for drilling operations in pebble layers, ensures the rapid formation of boreholes, and is simple to operate. The drill tube 4 maintains the support of the borehole during the reinforcement process to avoid the collapse of the borehole before reinforcement.

[0027] In a further solution, Figure 3 , Figure 4 and Figure 5As shown, it also includes a pouring part 6, which includes a vertical flow pipe 61 and a bucket 62 connected to the flow pipe 61. The flow pipe 61 moves along the flow groove 41 so that the bucket 62 is located above the base 1, and the flow pipe 61 passes through the base 1 and extends into the top of the drill hole.

[0028] When pouring concrete, this pouring part 6 is inserted from the side of the circulation groove 41 and moves along the circulation groove 41. Finally, the bucket 62 moves to the top side of the base 1, and the circulation pipe 61 passes through the base 1 and extends into the bottom layer. This structure can accommodate a certain volume of concrete by setting the bucket 62, so that the concrete has downward pressure when flowing downward. The circulation pipe 61 is set through the base 1 to avoid the base 1 sticking to the concrete due to contact between the concrete and the base 1.

[0029] In a further solution, Figure 1 , Figure 3 and Figure 6 As shown, the bucket bin 62 opens upward, and a bin cover 63 is provided to cover the opening of the bucket bin 62. The top of the bin cover 63 is provided with an inclined surface. An inclined guide block 21 with an inclined surface on the ground is fixed on the vertical rail column 2. After the quick-drying concrete is added to the bucket bin 62, the bin cover 63 is slidably arranged on the top opening of the bucket bin 62. As the drill tube 4 rotates, the inclined guide block 21 presses down the bin cover 63, so that the quick-drying concrete in the bucket bin 62 is pressed into the flow groove 41 in the drill tube 4.

[0030] This structure seals the bin cover 63 after containing the concrete, and as the drill tube 4 rotates, the bin cover 63 is pressed down by the inclined guide block 21, exerting more pressure on the concrete between the borehole and the drill tube 4, so that the concrete can be immersed deeper into the pebble layer, further improving the stability of the wall of the pebble layer after reinforcement, and also accelerating the flow of concrete, avoiding insufficient immersion depth caused by rapid solidification of the concrete.

[0031] In a further solution, Figure 7 and Figure 8 As shown, it also includes a retaining groove 42 arranged in contact with the circulation groove 41, and the retaining groove 42 is used to isolate the quick-drying concrete from the circulation groove 41. The tops of the three retaining grooves 42 are fixedly connected to the first connecting frame 43 at the same time. After the quick-drying concrete is poured, the retaining groove 42 is pulled out upward. It also includes a retaining column 44 arranged in the retaining groove 42. When drilling, the outer side of the retaining column 44 has the same arc surface as the outer side of the drill tube 4, which is used to isolate the pouring groove. When the drilling is completed, the retaining column 44 is removed; the tops of the three retaining columns 44 are fixedly connected to the second connecting frame 45 at the same time. The retaining column 44 structure cooperates with the retaining groove 42 structure to close the drill tube 4 integrated structure tightly.

[0032] In a further solution, the base 1 is evenly weighted and set to a disc structure. A through hole is opened on the base 1 for the drill tube 4 to pass through, so that the base 1 can press down on the pebble layer when drilling, increase the vertical pressure between the pebble layers, and facilitate drilling.

[0033] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A pebble formation drilling device, characterized in that: The invention comprises a base (1), wherein the base (1) is provided with a plurality of vertical rail posts (2), wherein a movable seat (3) is provided on the vertical rail posts (2) for vertical movement, wherein a drill tube (4) is rotatably provided on the movable seat (3), wherein when drilling, the vertical rail posts (2) are arranged around the desired drilling axis, and the drill tube (4) coincides with the desired drilling axis; wherein at least one vertical flow groove (41) is evenly arranged around the side surface of the drill tube (4), and wherein after the drill tube (4) is drilled down to a designated position, quick-drying concrete is poured into the flow groove (41), and as the drill tube (4) slowly rotates, the quick-drying concrete is immersed in the pebble layer on the side wall of the drilling hole and solidifies; and further comprises a pouring part (6), wherein the pouring part (6) comprises a vertical flow pipe (61) and a flow pipe (61) connected to the flow pipe (61). The bucket (62) is connected to the base (1), the flow pipe (61) moves along the flow groove (41), so that the bucket (62) is located above the base (1), and the flow pipe (61) passes through the base (1) and extends into the top of the drill hole; the bucket (62) opens upward, and a bucket cover (63) is provided to cover the opening of the bucket (62), the top of the bucket cover (63) is arranged with an inclined surface, and an inclined guide block (21) with an inclined surface on the ground is fixed on the vertical rail column (2); after the quick-drying concrete is added to the bucket (62), the bucket cover (63) is slidably arranged on the top opening of the bucket (62), and as the drill tube (4) rotates, the inclined guide block (21) presses down the bucket cover (63), so that the quick-drying concrete in the bucket (62) is pressed into the flow groove (41) in the drill tube (4).

2. The pebble formation drilling equipment according to claim 1, characterized in that: It also includes a retaining groove (42) arranged in contact with the circulation groove (41), the retaining groove (42) being used to isolate the quick-drying concrete from the circulation groove (41), and the top ends of a plurality of the retaining grooves (42) are simultaneously fixedly connected to a first connecting frame (43), and after the quick-drying concrete is poured, the retaining grooves (42) are pulled out upwards.

3. The pebble formation drilling equipment according to claim 2, characterized in that: It also includes a blocking column (44) arranged in the blocking groove (42). When drilling, the outer side of the blocking column (44) and the outer side of the drill tube (4) have the same arc surface. When drilling is completed, the blocking column (44) is removed. The top ends of a plurality of the blocking columns (44) are simultaneously fixedly connected to a second connecting frame (45).

4. The pebble formation drilling equipment according to claim 3, characterized in that: The base (1) is evenly weighted and arranged as a disc structure. A through hole for the drill tube (4) to pass through is provided on the base (1), so that the base (1) can exert downward pressure on the pebble layer when drilling.

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