Reaming type pre-stressed anchor cable drill bit device

Abstract

The utility model discloses a broaching type pre-stressed anchor cable drill bit device, which belongs to the technical field of building construction, and comprises a first broaching head, a second broaching head and a connecting component, the outer surface of the first broaching head is provided with first tooth heads which are annularly arranged, the outer surface of the second broaching head is provided with second tooth heads which are annularly arranged, and the connecting component is connected with the first tooth heads and the second tooth heads. A clamping block is installed on the outer surface of the second reaming head, a round hole is formed in the outer surface of the clamping block, and through the arrangement of the first reaming head, the second reaming head, a first tooth head, a second tooth head, the clamping block and a connecting ring, people can conveniently splice the reaming heads, so that people can control the reaming diameter; and through arrangement of a gasket, a spring and a connecting block, the stability of a lead screw can be greatly improved, people can conveniently connect equipment with a driving mechanism, and therefore people can conveniently use the equipment.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically a prestressed anchor cable drill bit device with enlarged hole. Background Technology

[0002] With the acceleration of urbanization and the development of the automobile industry, basement foundation pit support has become an increasingly important technology in construction projects. Prestressed anchor cables are a commonly used support component in foundation pit support projects. The process involves drilling holes in the soil and rock layer, inserting anchor rods, anchoring one end of the anchor rod in the stable soil and rock layer (called the inner anchor head), and then tensioning the other free end (called the outer anchor head) to apply pressure to the surface layer and anchor the unstable soil and rock mass. This method is called prestressed anchor cables.

[0003] However, most current hole-expanding prestressed anchor cable drill bits are integrally welded or cast in one piece, which can only expand holes of a specified diameter, thus greatly reducing the applicability of the equipment. Therefore, those skilled in the art have provided a hole-expanding prestressed anchor cable drill bit device to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a prestressed anchor cable drill bit device with enlarged hole to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A prestressed anchor cable drill bit device with a reaming hole includes a first reaming head, a second reaming head, and a connecting assembly. The outer surface of the first reaming head is equipped with a first tooth arranged in a ring, the outer surface of the second reaming head is equipped with a second tooth arranged in a ring, and a locking block is installed on the outer surface of the second reaming head. The outer surface of the locking block has a circular hole.

[0007] As a further improvement of this utility model: the connecting assembly includes two connecting rings, the outer surfaces of the two connecting rings being connected to the first reaming head and the second reaming head, respectively.

[0008] As a further embodiment of this utility model: a connecting block is snapped into the inside of one of the connecting rings, and a drive rod is installed on the outer surface of the connecting block.

[0009] As a further improvement of this utility model: positioning holes are provided on the outer surfaces of both connecting rings, and a lead screw is provided inside each set of positioning holes.

[0010] As a further improvement of this utility model: nuts are threaded onto the outer surfaces of both lead screws, and nail heads are installed on the outer surfaces of both lead screws.

[0011] As a further improvement of this utility model: springs are provided on the outside of both lead screws, and gaskets are fitted on the outside of both lead screws.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This prestressed anchor cable drill bit device, with its first reaming head, second reaming head, first tooth, second tooth, locking block, and connecting ring, not only facilitates the splicing of the reaming heads, allowing for control of the reaming diameter, but also significantly increases the stability of the first and second reaming heads. The inclusion of washers, springs, and connecting blocks not only greatly enhances the stability of the lead screw but also facilitates connection between the device and the drive mechanism, making the device easier to use. Attached Figure Description

[0014] Figure 1 A three-dimensional structural schematic diagram of a hole-expanding type prestressed anchor cable drill bit device;

[0015] Figure 2 This is a side view of a prestressed anchor cable drill bit device with an enlarged hole.

[0016] Figure 3 A bottom view of a prestressed anchor cable drill bit device with an enlarged hole type;

[0017] Figure 4 A cross-sectional view of the first reaming head in a prestressed anchor cable drill bit device;

[0018] Figure 5 In a type of prestressed anchor cable drill bit device for expanding holes Figure 4 A magnified structural diagram of part A in the middle.

[0019] In the figure: 1. First reaming head; 2. Connecting assembly; 201. Connecting ring; 202. Positioning hole; 203. Lead screw; 204. Nut; 205. Washer; 206. Spring; 207. Nail head; 3. Second reaming head; 4. First tooth; 5. Second tooth; 6. Locking block; 7. Round hole; 8. Connecting block; 9. Drive rod. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figures 1-5 In this embodiment of the utility model, a prestressed anchor cable drill bit device for hole expansion includes a first expansion head 1, a second expansion head 3, and a connecting component 2. The outer surface of the first expansion head 1 is equipped with a first tooth 4 arranged in a ring, the outer surface of the second expansion head 3 is equipped with a second tooth 5 arranged in a ring, and a locking block 6 is installed on the outer surface of the second expansion head 3. The outer surface of the locking block 6 has a circular hole 7, which allows people to control the diameter of the hole expansion. This solves the problem mentioned in the background art that most current prestressed anchor cable drill bits for hole expansion are integrally welded or cast in one piece, which can only expand holes of a specified diameter, thus greatly reducing the applicability of the equipment.

[0023] The connecting assembly 2 includes two connecting rings 201. The outer surfaces of the two connecting rings 201 are respectively connected to the first expanding head 1 and the second expanding head 3. A connecting block 8 is snapped into the inside of one of the connecting rings 201. A drive rod 9 is installed on the outer surface of the connecting block 8, which allows people to quickly connect the device to the drive rod 9, thereby facilitating the use of the device.

[0024] The outer surfaces of the two connecting rings 201 are provided with positioning holes 202. Each set of positioning holes 202 is provided with a lead screw 203. Nuts 204 are threaded onto the outer surfaces of the two lead screws 203. Nail heads 207 are installed on the outer surfaces of the two lead screws 203. Springs 206 are provided on the outside of the two lead screws 203. Washers 205 are fitted on the outside of the two lead screws 203. This not only enables the equipment to connect to the reaming head, but also greatly increases the stability of the reaming head during operation.

[0025] The working principle of this utility model is as follows: First, people can select the number of reaming heads to be connected according to the diameter of the hole to be enlarged. Then, the locking block 6 can be locked with the connecting ring 201. Subsequently, the locking block 6 can be positioned using the screw 203 and the nut 204. After completing the connection of the first reaming head 1 and the second reaming head 3, the connecting block 8 can be locked with the connecting ring 201 and positioned using the screw 203. Finally, people can use the reaming heads to perform hole enlargement operations.

[0026] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalent elements of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] 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 prestressed anchor cable drill bit device with reaming capability, comprising a first reaming head (1), a second reaming head (3), and a connecting assembly (2), characterized in that, The outer surface of the first reaming head (1) is equipped with a first tooth (4) arranged in a ring, the outer surface of the second reaming head (3) is equipped with a second tooth (5) arranged in a ring, and the outer surface of the second reaming head (3) is equipped with a locking block (6), and the outer surface of the locking block (6) is provided with a round hole (7).

2. The prestressed anchor cable drill bit device for hole expansion according to claim 1, characterized in that, The connecting component (2) includes two connecting rings (201), the outer surfaces of which are respectively connected to the first reaming head (1) and the second reaming head (3).

3. The prestressed anchor cable drill bit device for hole expansion according to claim 2, characterized in that, One of the connecting rings (201) has a connecting block (8) inside it, and a drive rod (9) is mounted on the outer surface of the connecting block (8).

4. The prestressed anchor cable drill bit device for hole expansion according to claim 2, characterized in that, The outer surfaces of the two connecting rings (201) are provided with positioning holes (202), and each set of positioning holes (202) is provided with a lead screw (203).

5. The prestressed anchor cable drill bit device for hole expansion according to claim 4, characterized in that, Both lead screws (203) have nuts (204) threaded onto their outer surfaces, and both lead screws (203) have nail heads (207) installed on their outer surfaces.

6. The prestressed anchor cable drill bit device for hole expansion according to claim 4, characterized in that, Both lead screws (203) are provided with springs (206) on their exteriors, and both lead screws (203) are provided with washers (205) on their exteriors.

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