Drill rod capable of guaranteeing construction perpendicularity of cast-in-place pile and construction method of drill rod

Abstract

The invention relates to a drill rod capable of guaranteeing construction perpendicularity of a cast-in-place pile and a construction method.The drill rod comprises a drill rod body, a first connector and a second connector, the middle of the drill rod body is spiral, one end of the drill rod body is a polygonal male head, the other end of the drill rod body is a polygonal female head, and the male head and the female head of the two drill rod bodies can be matched with each other; the first connector is a polygonal female connector, one end of the second connector is a polygonal male connector, the other end of the second connector is a polygonal female connector, and the polygonal male connector of the second connector is matched with the polygonal female connector of the first connector. By means of the mechanism, the problem that it cannot be guaranteed that the perpendicularity of a pile body meets the standard requirement through an existing drilling machine drill rod connecting mode is solved.

Description

Technical Field

[0001] The invention relates to the technical field of building pile driving, and in particular to a drill rod for ensuring the verticality of cast-in-place pile construction and a construction method thereof. Background Art

[0002] During the construction of bored piles with segmented drilling, traditional drilling tools and their connection methods are prone to pile hole deviation and displacement, resulting in the failure of the steel cage to reach the bottom, making the construction of the lower guide pipe difficult. In addition, the deviation of the pile position has a significant impact on the construction of the steel purlin, and even the structural edge needs to be removed and new piles need to be driven, which affects the construction progress and cost. In order to ensure the bearing capacity of the pile foundation, the verticality of the pile hole must meet the design requirements. Existing drilling rig drill rod connection methods mostly use pin connections, threads, sleeves, etc., which cannot ensure that the verticality of the pile body meets the requirements of the specifications. Some construction sites design temporary fixing devices for the verticality of the pile body on their own, which has obvious limitations. At present, there is no process for controlling the verticality of the pile through the drill rod. Summary of the invention

[0003] The invention provides a drill rod for ensuring the verticality of cast-in-place pile construction and a construction method thereof, which solves the problem that the connection method of the existing drill rod of a drilling rig cannot ensure that the verticality of a pile body meets the specification requirements.

[0004] The technical solution of the present invention to solve the above technical problems is as follows:

[0005] A drill rod for ensuring the verticality of cast-in-place pile construction comprises a drill rod, a first connecting head and a second connecting head. The middle part of the drill rod is spiral-shaped, one end of the drill rod is a polygonal male head, and the other end of the drill rod is a polygonal female head. The male heads and female heads of the two drill rods can be adapted to each other. Both ends of the first connecting head are polygonal female heads, one end of the second connecting head is a polygonal male head, and the other end is a polygonal female head. The polygonal male head of the second connecting head is adapted to the polygonal female head of the first connecting head.

[0006] The beneficial effect of the present invention is that the two ends of the drill rod are respectively set as male and female heads, and multiple drill rods are assembled and combined through the male and female heads, so as to ensure the stability of the drill lifting and keep the multiple drill rods vertical after being connected. The drill rod is connected to the power head through the first connector and the second connector to achieve precise control of the verticality of the pile body during the drilling and grouting process. The device is flexible and convenient to use, and each component can be recycled, reducing cost output. The operation of this structure is simple and stable, which can speed up the speed of connecting the drill rod and improve construction efficiency. In addition, the drill rod is quick to remove, the speed of lifting the drill is increased, and the stability of the drill lifting is guaranteed at the same time. At the same time, under different formation conditions, this structure and its process can ensure the verticality of the drill rod when drilling.

[0007] On the basis of the above technical solution, the present invention also makes the following improvements.

[0008] Furthermore, each hanging ear is provided with a through hole.

[0009] The beneficial effect of adopting the above further solution is that the first connector is connected to the male connector of the second connector through the through hole provided on the hanging ear.

[0010] Furthermore, the polygonal male end of the drill rod and the end faces of one end of the polygonal male end of the second connector are provided with a plurality of countersunk holes, and the polygonal female end of the drill rod and the end faces of the polygonal female ends of the first connector and the second connector are provided with a plurality of through holes.

[0011] The beneficial effect of adopting the above further scheme is that by respectively opening a plurality of countersunk holes and a plurality of through holes at the male and female ends of the drill rod, a plurality of drill rods can be assembled and combined, and then connected to the power head after being assembled with the second connector and the first connector. The operation of this structure is simple and stable, and can speed up the speed of connecting or removing the drill rod, improve the construction efficiency, and ensure the stability of the drill. At the same time, under different formation conditions, this structure and its process can ensure the verticality of the drill rod when drilling.

[0012] Furthermore, it also includes a connecting piece, which passes through the through hole and is pinned into the countersunk hole.

[0013] The beneficial effect of adopting the above further scheme is that multiple drill rods are assembled and combined through the connecting piece, and the drill rods are assembled with the second connector and the first connector through the connecting piece and then connected to the power head, so that the verticality of the drill rods when drilling holes can be ensured.

[0014] Furthermore, the through hole has an internal thread, and the connecting piece is threadedly connected to the through hole.

[0015] The beneficial effect of adopting the above further scheme is that the connecting piece is connected to the through hole by a thread, so that the connecting piece fixedly connects the drill rod, the second connecting head, the first connecting head and the power head, so that the verticality of the multiple drill rods is guaranteed when the multiple drill rods are connected to the second connecting head and the first connecting head and the power head, and the verticality of the hole when the drill rod is drilled can be guaranteed.

[0016] Furthermore, the connecting piece is a bolt, the connecting piece has an external thread near the nut, and the connecting piece has a smooth surface away from the nut.

[0017] The beneficial effect of adopting the above further scheme is that the connecting piece adopts bolts, so that the connecting piece can fix the drill rod, the second connector, the first connector and the power head. At the same time, the connecting piece has external threads near the nut position, and the surface of the connecting piece far away from the nut position is smooth, so that the part of the connecting piece with external threads is threadedly connected with the through hole, and the screw end with a smooth surface of the connecting piece forms a pin connection with the countersunk hole, so that the connecting piece uses a double connection method to fix the drill rod, the second connector, the first connector and the power head, ensuring the verticality of the connection between multiple drill rods and the second connector and the first connector and the power head, so as to ensure the verticality of the hole when the drill rod is drilled.

[0018] Furthermore, the polygonal female head and the polygonal male head of the drill pipe are any one of quadrilateral, hexagon and octagon.

[0019] The beneficial effect of adopting the above further scheme is that the polygonal female head and the polygonal male head of the drill rod are any one of quadrilateral, hexagon or octagon. The edge lines of the quadrilateral, hexagon or octagon can prevent the male and female heads of the drill rod from rotating during assembly, thereby ensuring the verticality when multiple drill rods are connected.

[0020] Furthermore, the polygonal female connector at the other end of the first connector is adapted to the connection of the power head.

[0021] The beneficial effect of adopting the above further solution is that the polygonal female connector at the other end of the first connector is adapted to the connection of the power head, and the power head can be connected to the second connector through the conversion of the first connector.

[0022] Furthermore, the polygonal male head of the second connecting head is adapted to the polygonal female head of the drill rod.

[0023] The beneficial effect of adopting the above further solution is that the polygonal male head of the second connector is adapted to the polygonal female head of the drill rod, so that the second connector can be connected to the drill rod. Then, the polygonal male head of the second connector is adapted to be connected to the polygonal female head of the first connector, so that the power head is connected to the drill rod through the transition between the first connector and the second connector.

[0024] On the other hand, a drill rod construction method for ensuring the verticality of cast-in-place pile construction is based on a drill rod for ensuring the verticality of cast-in-place pile construction. The construction method is:

[0025] S1: Place the drill pipe vertically under the power head, with the polygonal female end of the drill pipe as the top;

[0026] S2: The polygonal male head of the second connector is matched with the polygonal female head of the drill pipe and installed together;

[0027] S3: Pass the connector through the through hole on the female connector at the bottom of the second connector, and then pin it into the countersunk hole on the male connector at the top of the drill pipe, so as to connect the second connector to the drill pipe;

[0028] S4: Installing one end of the first connector that is adapted to the power head together with the connection of the power head;

[0029] S5: Pass the connecting piece through the through hole at the top of the first connecting head, and then pin it into the countersunk hole at the bottom of the power head, so as to connect the first connecting head and the power head together;

[0030] S6: Connect the through hole on the hanging ear to the male connector of the second connector;

[0031] S7: Pass the connector through the through hole at the top of the hanging ear, and then pin it into the countersunk hole on the male connector at the top of the second connector, so as to connect the first connector and the second connector together;

[0032] S8: The operator drives the connected drill pipe away from the ground with the power head and moves it upward, so that the polygonal male head at the bottom of the drill pipe is away from the ground;

[0033] S9: Connect the polygonal male head at the bottom of the drill rod to the polygonal female head of another drill rod;

[0034] S10: Repeat steps S8-S9, connect a corresponding number of drill rods as required, and complete the assembly link of the drill rods.

[0035] The beneficial effect of adopting the above further scheme is that the two ends of the drill rod are respectively set as male and female heads, and multiple drill rods are assembled and combined through the male and female heads, so that the stability of the drill is ensured while the multiple drill rods remain vertical after being connected. The drill rod is connected to the power head through the first connector and the second connector to achieve precise control of the verticality of the pile body during the drilling and grouting process. In addition, the operator can select the number of drill rods 1 that need to be connected according to the required depth of pile driving. At the same time, the operator can also calculate the depth of pile driving based on the number of connected drill rods 1. The device is flexible and convenient to use, and each component can be recycled, reducing cost output. The operation of this structure is simple and stable, which can speed up the speed of connecting the drill rod and improve construction efficiency. In addition, the drill rod is quickly removed, the speed of lifting the drill is increased, and the stability of the drill lifting is guaranteed at the same time. At the same time, under different strata, this structure and its process can ensure the verticality of the drill rod when drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a structural schematic diagram of a drill rod for ensuring the verticality of cast-in-place pile construction according to the present invention;

[0037] Figure 2 This is a structural schematic diagram of the matching connection of a drill rod for ensuring the verticality of cast-in-place pile construction according to the present invention;

[0038] Figure 3 This is a schematic structural diagram of a polygonal female head of a drill rod for ensuring the verticality of cast-in-place pile construction according to the present invention;

[0039] Figure 4 This is a schematic diagram of the polygonal male head structure of a drill rod for ensuring the verticality of cast-in-place pile construction according to the present invention;

[0040] Figure 5 It is an exploded schematic diagram of the matching connection of a drill rod for ensuring the verticality of cast-in-place pile construction according to the present invention;

[0041] Figure 6 This is a schematic structural diagram of a first connector of a drill rod for ensuring verticality in cast-in-place pile construction according to the present invention;

[0042] Figure 7 This is a schematic structural diagram of a second connector of a drill rod for ensuring the verticality of cast-in-place pile construction according to the present invention;

[0043] Figure 8 The present invention is a flow chart of a construction method of a drill rod for ensuring the verticality of cast-in-place pile construction.

[0044] In the accompanying drawings, the components represented by the various reference numerals are listed as follows: 1-drill rod; 11-countersink; 12-through hole; 2-first connector; 21-hanging ear; 3-second connector; 4-connector. DETAILED DESCRIPTION

[0045] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0046] Example 1

[0047] like Figure 1-7 As shown, the middle part of the drill rod 1 is spiral, one end of the drill rod 1 is a polygonal male head, and the other end of the drill rod 1 is a polygonal female head. The male head and the female head of the two drill rods 1 can adapt to each other, the first connecting head 2 is a polygonal female head, and a plurality of hanging ears 21 are arranged on the first connecting head 2. One end of the second connecting head 3 is a polygonal male head, and the other end is a polygonal female head. The hanging ear 21 is connected to the polygonal male head of the second connecting head 3.

[0048] Specifically, the two ends of the drill rod 1 are assembled and combined through the male and female heads, and it is ensured that the multiple drill rods 1 remain vertical after being connected. The drill rod 1 is connected to the power head through the first connector 2 and the second connector 3, and it is ensured that the multiple drill rods 1 remain vertical after being connected to the power head.

[0049] like Figure 1-7 As shown, each of the plurality of hanging ears 21 is provided with a through hole 12 .

[0050] Specifically, the first connector 2 is connected to the male end of the second connector 3 through the through hole 12 provided on the hanging ear 21. In the present embodiment, the hanging ears 21 are a pair, symmetrically arranged on the first connector 2. Alternatively, four hanging ears 21 can be symmetrically arranged in pairs, and the through holes 12 on each two opposing hanging ears 21 correspond to the countersunk holes 11 provided on the male end of the second connector 3, and are connected together through the connector 4.

[0051] like Figure 1-7 As shown, the polygonal male end of the drill rod 1 and the end surface of one end of the polygonal male end of the second connector 3 are symmetrically provided with a plurality of countersunk holes 11, and the polygonal female end of the drill rod 1 and the end surfaces of the polygonal female end of the first connector 2 and the second connector 3 are provided with a plurality of through holes 12.

[0052] Specifically, the male and female ends of the drill rods 1 are respectively connected through a plurality of countersunk holes 11 and a plurality of through holes 12, and the plurality of drill rods 1 are assembled and combined, and the drill rods 1 are assembled with the second connector 3 and the first connector 2 and then connected to the power head.

[0053] like Figure 1-7 As shown, a connecting member 4 is also included, and the connecting member 4 passes through the through hole 12 and is pinned in the counterbore 11.

[0054] Specifically, the male head of one drill rod 1 is assembled with the female head of another drill rod 1, and the countersunk hole 11 on the male head corresponds to the through hole 12 on the female head, and the connecting piece 4 is passed through the through hole 12 and inserted into the countersunk hole 11 to connect the two drill rods 1 together.

[0055] Assemble the female end of a drill rod 1 with the male end of the second connector 3 , and align the countersunk hole 11 on the male end with the through hole 12 on the female end, insert the connector 4 through the through hole 12 and into the countersunk hole 11 , and connect the drill rod 1 with the second connector 3 .

[0056] The through hole 12 formed on the hanging ear 21 is connected to the male end of the second connector 3. The connector 4 passes through the through hole 12 and is inserted into the counterbore 11, so as to connect the first connector 2 and the second connector 3 together.

[0057] Assemble the end of the first connector 2 that matches the connection between the first connector and the power head with the power head, and make the through hole 12 on the first connector 2 correspond to the countersunk hole 11 on the power head, pass the connector 4 through the through hole 12 and insert it into the countersunk hole 11 to connect the first connector 2 with the power head.

[0058] like Figure 1-7 As shown, the through hole 12 has an internal thread, and the connecting member 4 is threadedly connected to the through hole 12 .

[0059] Specifically, one end of the connector 4 is screwed to the through hole 12, and the other end of the connector 4 is inserted into the countersunk hole 11 through the through hole 12, so as to connect the drill pipe 1, the first connector 2, the second connector 3 and the power head together.

[0060] like Figure 1-7 As shown, the connecting member 4 is a bolt, the connecting member 4 has an external thread near the nut, and the connecting member 4 has a smooth surface away from the nut.

[0061] Specifically, one end of the connector 4 is screwed to the through hole 12, and the other end of the connector 4 is inserted into the countersunk hole 11 through the through hole 12, so as to connect the drill pipe 1, the first connector 2, the second connector 3 and the power head together.

[0062] like Figure 1-7 As shown, the polygonal female head and the polygonal male head of the drill rod 1 are any one of quadrilateral, hexagonal and octagonal.

[0063] Specifically, the polygonal female head and the polygonal male head of the drill rod 1 are any one of a quadrilateral, a hexagon or an octagon. The edges of the quadrilateral, the hexagon or the octagon can prevent the male and female heads of the drill rod 1 from rotating during assembly, thereby ensuring the verticality when multiple drill rods 1 are connected. In this embodiment, the polygonal female head and the polygonal male head of the drill rod 1 are hexagonal, and the hexagonal male head and the female head cooperate to ensure tight assembly and ensure that the male head and the female head will not have relative displacement during construction, thereby ensuring the fixation of the connection.

[0064] like Figure 1-7 As shown, the polygonal female connector at the other end of the first connector 2 is adapted to the connection of the power head.

[0065] Specifically, assemble the end of the first connector 2 that matches the connection between the power head and the power head, and make the through hole 12 on the first connector 2 correspond to the countersunk hole 11 on the power head, pass the connecting piece 4 through the through hole 12 and insert it into the countersunk hole 11, and connect the first connector 2 to the power head together.

[0066] like Figure 1-7 As shown, the polygonal male head of the second connecting head 3 is adapted to the polygonal female head of the drill pipe 1 .

[0067] Specifically, the female head of a drill rod 1 is assembled with the male head of the second connector 3, and the countersunk hole 11 on the male head corresponds to the through hole 12 on the female head, the connecting piece 4 passes through the through hole 12 and is inserted into the countersunk hole 11, and the drill rod 1 and the second connector 3 are connected together.

[0068] The beneficial effect of adopting the above scheme is that the two ends of the drill rod 1 are respectively set as male and female heads, and multiple drill rods 1 are assembled and combined through the male and female heads, so as to ensure the stability of the drill lifting while making the multiple drill rods 1 remain vertical after being connected. The drill rod 1 is connected to the power head through the first connector 2 and the second connector 3 to achieve precise control of the verticality of the pile body during the drilling and grouting process. The device is flexible and convenient to use, and each component can be recycled, reducing cost output. The operation of this structure is simple and stable, which can speed up the speed of connecting the drill rod and improve construction efficiency. In addition, the drill rod is quickly removed, the speed of lifting the drill is increased, and the stability of the drill lifting is guaranteed at the same time. At the same time, under different formation conditions, this structure and its process can ensure the verticality of the drill rod when drilling.

[0069] The working process of this embodiment is: assemble the male head of one drill rod 1 with the female head of another drill rod 1, and make the countersunk hole 11 on the male head correspond to the through hole 12 on the female head, pass the connecting piece 4 through the through hole 12 and insert it into the countersunk hole 11, and connect the two drill rods 1 together.

[0070] Assemble the female end of a drill rod 1 with the male end of the second connector 3 , and align the countersunk hole 11 on the male end with the through hole 12 on the female end, insert the connector 4 through the through hole 12 and into the countersunk hole 11 , and connect the drill rod 1 with the second connector 3 .

[0071] The through hole 12 formed on the hanging ear 21 is connected to the male end of the second connector 3. The connector 4 passes through the through hole 12 and is inserted into the counterbore 11, so as to connect the first connector 2 and the second connector 3 together.

[0072] Assemble the end of the first connector 2 that matches the connection between the first connector and the power head with the power head, and make the through hole 12 on the first connector 2 correspond to the countersunk hole 11 on the power head, pass the connector 4 through the through hole 12 and insert it into the countersunk hole 11 to connect the first connector 2 with the power head.

[0073] Example 2

[0074] like Figure 8 As shown, based on a drill rod that ensures the verticality of the cast-in-place pile construction, the construction method is:

[0075] S1: Place the drill rod 1 vertically below the power head, with the polygonal female end of the drill rod 1 as the top;

[0076] S2: The polygonal male head of the second connector 3 is matched with the polygonal female head of the drill pipe 1 and installed together;

[0077] S3: Pass the connector 4 through the through hole 12 on the female connector at the bottom of the second connector 3, and then pin it into the countersunk hole 11 on the male connector at the top of the drill rod 1, so as to connect the second connector 3 and the drill rod 1 together;

[0078] S4: Fit and install the polygonal female connector of the first connector 2 and the connection of the power head together;

[0079] S5: Pass the connecting piece 4 through the through hole 12 at the top of the first connecting head 2, and then pin it into the countersunk hole 11 at the bottom of the power head to connect the first connecting head 2 with the power head;

[0080] S6: Connect the through hole 12 on the hanging ear 21 to the male connector of the second connector 3;

[0081] S7: Pass the connector 4 through the through hole 12 at the top of the hanging ear 21, and then pin it into the countersunk hole 11 on the top male head of the second connector 3, so as to connect the first connector 2 and the second connector 3 together;

[0082] S8: The operator drives the connected drill pipe 1 away from the ground with the power head and moves it upward, so that the polygonal male head at the bottom of the drill pipe 1 is away from the ground;

[0083] S9: Connect the polygonal male head of another drill rod 1 to the polygonal female head at the bottom of the drill rod 1;

[0084] S10: Repeat steps S8-S9, connect a corresponding number of drill rods 1 as required, and complete the assembly and connection of the drill rods.

[0085] The beneficial effect of adopting the above scheme is that the two ends of the drill rod 1 are respectively set as male and female heads, and multiple drill rods 1 are assembled and combined through the male and female heads, so as to ensure the stability of the drill lifting while making the multiple drill rods 1 remain vertical after being connected. The drill rod 1 is connected to the power head through the first connector 2 and the second connector 3 to achieve precise control of the verticality of the pile body during the drilling and grouting process. The device is flexible and convenient to use, and each component can be recycled, reducing cost output. The operation of this structure is simple and stable, which can speed up the speed of connecting the drill rod 1 and improve construction efficiency. In addition, the drill rod 1 is quick to remove, the speed of lifting the drill is increased, and the stability of the drill lifting is guaranteed at the same time. At the same time, under different formation conditions, this structure and its process can ensure the verticality of the drill rod 1 when drilling.

[0086] The working process of this embodiment is: assemble the female head of a drill rod 1 with the male head of the second connecting head 3, and make the countersunk hole 11 on the male head correspond to the through hole 12 on the female head, pass the connecting piece 4 through the through hole 12 and insert it into the countersunk hole 11, and connect the drill rod 1 and the second connecting head 3 together.

[0087] Assemble the end of the first connector 2 that matches the connection between the first connector and the power head with the power head, and make the through hole 12 on the first connector 2 correspond to the countersunk hole 11 on the power head, pass the connector 4 through the through hole 12 and insert it into the countersunk hole 11 to connect the first connector 2 with the power head.

[0088] The through hole 12 formed on the hanging ear 21 is connected to the male end of the second connector 3. The connector 4 passes through the through hole 12 and is inserted into the counterbore 11, so as to connect the first connector 2 and the second connector 3 together.

[0089] The operator uses the power head to drive the connected drill rod 1 away from the ground and move it upward, so that the polygonal male head at the bottom of the drill rod 1 is away from the ground, assembles the male head of the drill rod 1 with the female head of another drill rod 1, and makes the countersunk hole 11 on the male head correspond to the through hole 12 on the female head, inserts the connector 4 through the through hole 12 and into the countersunk hole 11, and connects the two drill rods 1 together. The operator can select the number of drill rods 1 to be connected according to the required pile driving depth. At the same time, the operator can also calculate the pile driving depth according to the number of connected drill rods 1.

[0090] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0091] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0092] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0093] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0094] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0095] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A drill rod for ensuring the verticality of cast-in-place pile construction, characterized in that: The invention comprises a drill rod (1), a first connector (2) and a second connector (3); the middle part of the drill rod (1) is spiral; one end of the drill rod (1) is a polygonal male head; the other end of the drill rod (1) is a polygonal female head; the male heads and female heads of the two drill rods (1) can be adapted to each other; the first connector (2) is a polygonal female head; a plurality of hanging ears (21) are arranged on the first connector (2); one end of the second connector (3) is a polygonal male head; the other end is a polygonal female head; the hanging ears (21) are connected to the polygonal male head of the second connector (3).

2. A drill rod for ensuring verticality of bored pile construction according to claim 1, characterized in that: Each of the hanging ears (21) is provided with a through hole (12).

3. A drill rod for ensuring verticality of bored pile construction according to claim 1, characterized in that: The polygonal male end of the drill rod (1) and the end surface of one end of the polygonal male end of the second connector (3) are provided with a plurality of countersunk holes (11), and the polygonal female end of the drill rod (1) and the end surface of the polygonal female end of the second connector (3) are provided with a plurality of through holes (12).

4. A drill rod for ensuring verticality of bored pile construction according to claim 3, characterized in that: It also comprises a connecting piece (4), wherein the connecting piece (4) passes through the through hole (12) and is pin-connected in the counterbore (11).

5. A drill rod for ensuring verticality of cast-in-place pile construction according to claim 2 or 4, characterized in that: The through hole (12) has an internal thread, and the connecting piece (4) is threadedly connected to the through hole (12).

6. A drill rod for ensuring verticality of bored pile construction according to claim 5, characterized in that: The connecting piece (4) is a bolt, the connecting piece (4) has an external thread at a location close to the nut, and the connecting piece (4) has a smooth surface at a location far from the nut.

7. A drill rod for ensuring verticality of bored pile construction according to claim 1, characterized in that: The polygonal female head and the polygonal male head of the drill rod (1) are any one of a quadrilateral, a hexagon, and an octagon.

8. A drill rod for ensuring verticality of bored pile construction according to claim 1, characterized in that: The polygonal female connector at the other end of the first connector (2) is adapted to fit the connection of the power head.

9. A drill rod for ensuring verticality of bored pile construction according to claim 1, characterized in that: The polygonal male head of the second connecting head (3) is adapted to the polygonal female head of the drill rod (1).

10. A drill rod construction method for ensuring the verticality of cast-in-place pile construction, characterized in that: A drill rod for ensuring the verticality of bored pile construction according to any one of claims 1 to 9, the construction method is: S1: Place the drill rod (1) vertically below the power head, with the polygonal male end of the drill rod (1) as the top; S2: The polygonal female head of the second connector (3) is matched with the polygonal male head of the drill rod (1) and installed together; S3: Pass the connecting piece (4) through the through hole (12) on the female end at the bottom of the second connecting piece (3), and then pin it into the countersunk hole (11) on the male end at the top of the drill rod (1), so as to connect the second connecting piece (3) and the drill rod (1) together; S4: Fitting one end of the first connector (2) adapted to the power head with the connection portion of the power head and installing them together; S5: Pass the connecting piece (4) through the through hole (12) at the top of the first connecting head (2), and then pin it into the countersunk hole (11) at the bottom of the power head, so as to connect the first connecting head (2) and the power head together; S6: Connecting the through hole (12) provided on the hanging ear (21) to the male connector of the second connector (3); S7: Pass the connector (4) through the through hole (12) at the top of the hanging ear (21), and then pin it into the countersunk hole (11) on the male head at the top of the second connector (3), so as to connect the first connector (2) and the second connector (3) together; S8: Using the power head to drive the connected drill pipe (1) away from the ground and move it upward, so that the polygonal female head at the bottom of the drill pipe (1) is away from the ground; S9: Connecting the polygonal female head at the bottom of the drill rod (1) with the polygonal male head of another drill rod (1); S10: Repeat steps S8-S9 to connect a corresponding number of drill rods (1) as required to complete the assembly and connection of the drill rods.

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