An adjustable soil enlarged head anchor drill bit

Abstract

This utility model relates to the field of anchor bolt drill bit technology and discloses an adjustable soil enlargement head anchor bolt drill bit, including a drill rod, a main drill bit fixedly installed on the left side of the drill rod, and a connecting assembly disposed inside the drill rod. The connecting assembly includes an adjustment mechanism disposed inside the drill rod, a heat dissipation mechanism disposed inside the drill rod, a limiting ring slidably connected to the inner wall of the drill rod, a spring at the end away from the pressure block fixedly connected to the inner wall of the drill rod, a solid column at the outer end fixedly connected to a conical block, a micro fan input end connected to the outside through an air inlet pipe, and an exhaust pipe at the end away from the exhaust box located outside the driver. This utility model solves the problem that existing anchor bolt drill bits require different models of drill bits to meet different hole diameters during the drilling process, resulting in high operating costs, reduced construction efficiency, and limited practicality.

Description

Technical Field

[0001] This utility model relates to the field of anchor drill bit technology, specifically an adjustable soil enlargement head anchor drill bit. Background Technology

[0002] End-enlarged anchor bolts (also known as enlarged head anchor bolts) form enlarged heads of different radii in the inner anchoring section of the anchor bolt. This not only increases the contact area between the inner anchoring section and the surrounding soil and rock, but also creates a compressive stress zone on the soil and rock at the front end of the enlarged head. Therefore, their ultimate bearing capacity can be increased by 2-5 times compared to traditional tension anchor bolts.

[0003] When multiple hole diameters are required during the existing anchor drill bit installation process, different models of drill bits need to be replaced to meet the different hole diameters, which results in high usage costs and affects construction efficiency, making its practicality relatively limited.

[0004] To address this issue, we propose an adjustable soil enlargement head anchor drill bit. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable soil enlargement head anchor drill bit, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable soil enlargement head anchor drill bit, including a drill rod;

[0007] The main drill bit is fixedly installed on the left side of the drill pipe;

[0008] And a connecting assembly disposed inside the drill pipe, the connecting assembly including an adjustment mechanism disposed inside the drill pipe, and a heat dissipation mechanism disposed inside the drill pipe.

[0009] Preferably, the adjusting mechanism includes a driver fixedly installed on the inner wall of the drill rod, a threaded rod fixedly connected to the output end of the driver, a threaded sleeve threadedly connected to the outer wall of the threaded rod, a conical block fixedly connected to the end of the threaded sleeve away from the driver, a limit ring fixedly connected to the outer wall of the conical block, a hollow column fixedly connected to the inner wall of the drill rod, a solid column sleeved inside the hollow column, a through hole opened on the outer wall of the drill rod, an auxiliary drill bit slidably connected to the inner wall of the through hole, a pressing block fixedly connected to the inner end of the auxiliary drill bit, and a spring fixedly connected to one side of the pressing block.

[0010] Preferably, the heat dissipation mechanism includes an installation groove inside the drill rod, a miniature fan fixedly installed on the inner wall of the installation groove, an exhaust box fixedly installed on the inner wall of the installation groove, an exhaust pipe connected to one side of the exhaust box, a connecting pipe connected to the output end of the miniature fan, an air outlet hole opened on the outer wall of the main drill bit, and a one-way valve installed inside the air outlet hole.

[0011] Preferably, the limiting ring is slidably connected to the inner wall of the drill rod, and the end of the spring away from the pressure block is fixedly connected to the inner wall of the drill rod. Through the cooperation of the driver, threaded rod, threaded sleeve, conical block, hollow column, solid column, limiting ring, through hole, auxiliary drill bit, pressure block, and spring, the auxiliary drill bit can be extended outward, thereby drilling different hole diameters without the need to replace the drill bit, thus increasing construction efficiency and the applicability of the device.

[0012] Preferably, the outer end of the solid column is fixedly connected to the conical block, and there are four hollow columns and four solid columns, which are equidistantly distributed inside the main drill bit.

[0013] Preferably, the input end of the micro fan is connected to the outside through an air inlet pipe, and the end of the exhaust pipe away from the exhaust box is located outside the driver. Through the cooperation of the mounting slot, micro fan, exhaust box, exhaust pipe, connecting pipe, air outlet, and one-way valve, the air circulation inside the drill rod can be increased, thereby preventing the internal temperature of the main drill bit from becoming too high, which could damage the driver and affect the subsequent use of the device.

[0014] Preferably, there are four air outlets, which are equidistantly distributed on the surface of the drill rod.

[0015] This invention provides an adjustable soil enlarged head anchor drill bit. This adjustable soil enlarged head anchor drill bit has the following advantages:

[0016] (1) The adjustable soil enlarged head anchor drill bit, by setting an adjustment mechanism, under the action of the driver, threaded rod, threaded sleeve, conical block, hollow column, solid column, limit ring, through hole, auxiliary drill bit, pressure block and spring, can extend the auxiliary drill bit outward, so as to drill different hole diameters without replacing the drill bit, thereby increasing construction efficiency and increasing the applicability of the device;

[0017] (2) The adjustable soil enlarged head anchor drill bit, by setting a heat dissipation mechanism, can increase the air circulation inside the drill rod under the action of the installation groove, micro fan, exhaust box, exhaust pipe, connecting pipe, air outlet and one-way valve, thereby preventing the internal temperature of the main drill bit from being too high, which would damage the driver and affect the subsequent use of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the adjustment mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the heat dissipation mechanism of this utility model;

[0022] In the diagram: 1. Drill rod; 2. Main drill bit; 3. Connecting assembly; 31. Adjusting mechanism; 311. Driver; 312. Threaded rod; 313. Threaded sleeve; 314. Conical block; 315. Hollow column; 316. Solid column; 317. Limiting ring; 318. Through hole; 319. Secondary drill bit; 3110. Pressing block; 3111. Spring; 32. Heat dissipation mechanism; 321. Mounting slot; 322. Miniature fan; 323. Exhaust box; 324. Exhaust pipe; 325. Connecting pipe; 326. Air outlet; 327. One-way valve. Detailed Implementation

[0023] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0024] Example 1

[0025] like Figure 1-4 As shown, this utility model provides a technical solution: an adjustable soil enlargement head anchor drill bit, including a drill rod 1, a main drill bit 2 fixedly installed on the left side of the drill rod 1, and a connecting assembly 3 disposed inside the drill rod 1. The connecting assembly 3 includes an adjustment mechanism 31 disposed inside the drill rod 1, a heat dissipation mechanism 32 disposed inside the drill rod 1, and an adjustment mechanism 31 including a driver 311 fixedly installed on the inner wall of the drill rod 1. The output end of the driver 311 is fixedly connected to a threaded rod 312, and the outer wall of the threaded rod 312 is threaded. A threaded sleeve 313 is connected, and a conical block 314 is fixedly connected to the end of the threaded sleeve 313 away from the driver 311. A limit ring 317 is fixedly connected to the outer wall of the conical block 314. A hollow column 315 is fixedly connected to the inner wall of the drill rod 1. A solid column 316 is sleeved inside the hollow column 315. A through hole 318 is opened on the outer wall of the drill rod 1. A secondary drill bit 319 is slidably connected to the inner wall of the through hole 318. A pressing block 3110 is fixedly connected to the inner end of the secondary drill bit 319. A spring 3111 is fixedly connected to one side of the pressing block 3110.

[0026] In this embodiment, the limiting ring 317 is slidably connected to the inner wall of the drill rod 1, and the end of the spring 3111 away from the pressing block 3110 is fixedly connected to the inner wall of the drill rod 1. Through the cooperation of the driver 311, threaded rod 312, threaded sleeve 313, conical block 314, hollow column 315, solid column 316, limiting ring 317, through hole 318, auxiliary drill bit 319, pressing block 3110, and spring 3111, the auxiliary drill bit 319 can be extended outward, thereby drilling different hole diameters without the need to replace the drill bit, thus increasing construction efficiency and the applicability of the device.

[0027] Furthermore, the outer end of the solid column 316 is fixedly connected to the conical block 314, and there are four hollow columns 315 and four solid columns 316, which are equidistantly distributed inside the main drill bit 2.

[0028] When in use, the device drives the threaded rod 312 to rotate via the driver 311. Under the limiting action of the hollow column 315 and the solid column 316, and because the outer end of the solid column 316 is fixedly connected to the conical block 314, the threaded sleeve 313, which is threaded to the outer wall of the threaded rod 312, can drive the conical block 314 to move towards the pressing block 3110, thereby pressing the pressing block 3110. Subsequently, the auxiliary drill bit 319, which is fixedly connected to one side of the pressing block 3110, can be pushed outward through the through hole 318, thus drilling different hole diameters without the need to change the drill bit, increasing the applicability of the device.

[0029] Example 2

[0030] Based on Example 1, a preferred embodiment of the adjustable soil enlargement head anchor drill bit provided by this utility model is as follows: Figures 1 to 4 As shown: The heat dissipation mechanism 32 includes a mounting groove 321 inside the drill rod 1. A miniature fan 322 is fixedly installed on the inner wall of the mounting groove 321. An exhaust box 323 is fixedly installed on the inner wall of the mounting groove 321. An exhaust pipe 324 is connected to one side of the exhaust box 323. A connecting pipe 325 is connected to the output end of the miniature fan 322. An air outlet 326 is opened on the outer wall of the main drill bit 2. A one-way valve 327 is installed inside the air outlet 326.

[0031] In this embodiment, the input end of the micro fan 322 is connected to the outside through an air inlet pipe, and the end of the exhaust pipe 324 away from the exhaust box 323 is located outside the driver 311. Through the cooperation of the mounting slot 321, the micro fan 322, the exhaust box 323, the exhaust pipe 324, the connecting pipe 325, the air outlet 326, and the one-way valve 327, the air circulation inside the drill rod 1 can be increased, thereby preventing the internal temperature of the main drill bit 2 from becoming too high, which could damage the driver 311 and affect the subsequent use of the device.

[0032] Furthermore, there are four vent holes 326, which are equidistantly distributed on the surface of the drill rod 1.

[0033] When the drill rod 1 is in use, external air can be introduced into the micro fan 322 through the micro fan 322, and then into the drill rod 1 through the exhaust box 323. Finally, the air can be discharged outward through the air outlet 326, thereby accelerating the air circulation inside the drill rod 1. This can prevent the internal temperature of the main drill bit 2 from becoming too high, which could damage the driver 311 and affect the subsequent use of the device. In addition, the one-way valve 327 can prevent external soil from entering the drill rod 1.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable soil enlarged head anchor drill bit, comprising a drill rod (1); The main drill bit (2) is fixedly installed on the left side of the drill rod (1); And a connecting assembly (3) disposed inside the drill pipe (1), characterized in that: The connecting assembly (3) includes an adjustment mechanism (31) disposed inside the drill rod (1), and a heat dissipation mechanism (32) is disposed inside the drill rod (1). The adjustment mechanism (31) includes a driver (311) fixedly installed on the inner wall of the drill rod (1). The output end of the driver (311) is fixedly connected to a threaded rod (312). The outer wall of the threaded rod (312) is threadedly connected to a threaded sleeve (313). The end of the threaded sleeve (313) away from the driver (311) is fixedly connected to a conical block (314). The outer wall of the conical block (314) is fixedly connected to a limit ring (317). The inner wall of the drill rod (1) is fixedly connected to a hollow column (315). A solid column (316) is sleeved inside the hollow column (315). The outer wall of the drill rod (1) has a through hole (318). The inner wall of the through hole (318) is slidably connected to a secondary drill bit (319). The inner end of the secondary drill bit (319) is fixedly connected to a pressing block (3110). A spring (3111) is fixedly connected to one side of the pressing block (3110).

2. The adjustable soil enlargement head anchor drill bit according to claim 1, characterized in that: The heat dissipation mechanism (32) includes an installation groove (321) inside the drill rod (1), a micro fan (322) is fixedly installed on the inner wall of the installation groove (321), an exhaust box (323) is fixedly installed on the inner wall of the installation groove (321), an exhaust pipe (324) is connected to one side of the exhaust box (323), a connecting pipe (325) is connected to the output end of the micro fan (322), an air outlet (326) is opened on the outer wall of the main drill bit (2), and a one-way valve (327) is installed inside the air outlet (326).

3. The adjustable soil enlargement head anchor drill bit according to claim 1, characterized in that: The limiting ring (317) is slidably connected to the inner wall of the drill rod (1), and the end of the spring (3111) away from the pressure block (3110) is fixedly connected to the inner wall of the drill rod (1).

4. The adjustable soil enlargement head anchor drill bit according to claim 1, characterized in that: The outer end of the solid column (316) is fixedly connected to the conical block (314). There are four hollow columns (315) and four solid columns (316), which are equidistantly distributed inside the main drill bit (2).

5. An adjustable soil enlargement head anchor drill bit according to claim 2, characterized in that: The input end of the micro fan (322) is connected to the outside through the air inlet pipe, and the exhaust pipe (324) is located outside the driver (311) at the end away from the exhaust box (323).

6. An adjustable soil enlargement head anchor drill bit according to claim 2, characterized in that: There are four air vents (326), which are equidistantly distributed on the surface of the drill rod (1).

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