Environment-friendly air down-the-hole hammer drilling tool structure

Abstract

The utility model relates to the technical field of air down-the-hole hammer drilling tools, and discloses an environment-friendly air down-the-hole hammer drilling tool structure which is characterized in that a positioning mechanism is arranged outside an air down-the-hole hammer drilling tool main body and comprises a mounting ring mounted outside the air down-the-hole hammer drilling tool main body through a bolt; mounting rods are symmetrically arranged on the outer side of the mounting ring, an adjusting rod is arranged at one end of each mounting rod in a penetrating mode, and a positioning plate is connected to one end of each adjusting rod; a mounting groove is formed in the upper end of the drill bit, the lower end of the piston rod is embedded into the mounting groove, and a limiting rod is arranged on the outer side of the piston rod in a penetrating mode. According to the air down-the-hole hammer drilling tool, through the arrangement of a positioning mechanism, an adjusting rod can move in a mounting rod through work of a first electric telescopic rod, then a positioning plate can make contact with the inner wall after drilling, and therefore the stability of the air down-the-hole hammer drilling tool body is guaranteed, and the situation that the drilling work is affected due to deviation caused by shaking of the air down-the-hole hammer drilling tool body is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of air down-the-hole hammer drilling tools, in particular to an environmentally friendly air down-the-hole hammer drilling tool structure. Background Art

[0002] Air down-the-hole hammer drill, also known as pneumatic down-the-hole hammer or pneumatic impactor, is a down-the-hole rock drilling tool that uses compressed air as a power source. The research and application of this type of drilling tool has a history of more than 150 years. Its basic principle is to use high-speed airflow to impact the drill bit, so that the drill bit generates impact force on the rock, thereby achieving the effect of breaking the rock.

[0003] A Chinese patent discloses an environmentally friendly air down-the-hole hammer drill (publication number CN207363591U). The patented technology uses a drill with this connection method, which makes it easy and reliable to unscrew the drill rod, has good sealing performance and low manufacturing cost. The cuttings are discharged from the central channel of the drill and discharged in an organized manner after being allowed to stand in a subsequent dust and gas separator, thus avoiding dust pollution to the air. The patented technology is practical and environmentally friendly.

[0004] However, there are still some shortcomings in this patent. Although the drill rod of the drill tool of this patent can be easily unscrewed, it can be seen from the drawings of this patent that this patent cannot fix the drill tool when drilling into the ground, which makes the drill bit easily deviate during drilling, thereby affecting its drilling position. Therefore, those skilled in the art provide an environmentally friendly air down-the-hole hammer drill tool structure to solve the problems raised in the above background technology. Utility Model Content

[0005] The utility model aims to provide an environmentally friendly air down-the-hole hammer drill tool structure to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An environmentally friendly air down-the-hole hammer drill tool structure comprises an air down-the-hole hammer drill tool body, a piston rod penetrating the lower end of the air down-the-hole hammer drill tool body, and a drill bit arranged outside the piston rod and located at the lower end of the air down-the-hole hammer drill tool body. A positioning mechanism is arranged outside the air down-the-hole hammer drill tool body, and the positioning mechanism comprises a mounting ring installed outside the air down-the-hole hammer drill tool body by bolts, mounting rods are symmetrically arranged on the outer side of the mounting ring, an adjusting rod is penetrated at one end of the mounting rod, and a positioning plate is connected to one end of the adjusting rod; a mounting groove is opened at the upper end of the drill bit, the lower end of the piston rod is embedded in the interior of the mounting groove, and a limiting rod is penetrated at the outer side of the piston rod.

[0008] As a further solution of the utility model: a limiting hole is symmetrically provided on the inner side of the installation groove, and one end of the limiting rod is embedded in the limiting hole.

[0009] As a further solution of the utility model: a fixing groove is opened inside the piston rod, one end of the limiting rod is connected to a second limiting plate inside the fixing groove, and the radius of the second limiting plate is larger than the radius of the limiting rod.

[0010] As a further solution of the utility model: a second electric telescopic rod is arranged inside the fixing groove, and a telescopic end of the second electric telescopic rod is connected to one end of the second limiting plate.

[0011] As a further solution of the utility model: four mounting rods are symmetrically arranged on the outer side of the mounting ring, and the adjusting rod is slidably arranged inside the mounting rod.

[0012] As a further solution of the utility model: a first electric telescopic rod is also arranged inside the mounting rod, a first limit plate is installed inside the mounting rod at one end of the adjusting rod, and the telescopic end of the first electric telescopic rod is connected to one end of the first limit plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. An environmentally friendly air down-the-hole hammer drill tool structure, through the setting of a positioning mechanism, through the operation of a first electric telescopic rod inside a mounting rod, the adjusting rod can be moved inside the mounting rod, and then the position of a positioning plate can be adjusted, so that the positioning plate contacts the inner wall after drilling, thereby ensuring the stability of the main body of the air down-the-hole hammer drill tool, avoiding its shaking and offset to affect the drilling work.

[0015] 2. An environmentally friendly air down-the-hole hammer drill tool structure, in which the lower end of the piston rod is embedded into the interior of the installation groove, and the second electric telescopic rod inside the fixed groove works, so that the limit rod can move outward inside the fixed groove, and then the limit rod can be embedded into the interior of the limit hole, so that the drill bit can be quickly positioned and installed. This setting can facilitate the installation and disassembly of the drill bit to avoid it being unusable when it is damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an environmentally friendly air down-the-hole hammer drill structure;

[0017] Figure 2 It is a structural schematic diagram of a positioning mechanism in an environmentally friendly air down-the-hole hammer drilling tool structure;

[0018] Figure 3 It is a structural schematic diagram of a limit rod in an environmentally friendly air down-the-hole hammer drilling tool structure;

[0019] Figure 4 The present invention is a structural schematic diagram of a second electric telescopic rod in an environmentally friendly air down-the-hole hammer drilling tool structure.

[0020] In the figure: 1. air down-the-hole hammer drill body; 11. piston rod; 2. positioning mechanism; 21. mounting ring; 22. positioning plate; 23. mounting rod; 231. first electric telescopic rod; 24. adjusting rod; 241. first limit plate; 3. drill bit; 31. mounting slot; 4. limit rod; 41. limit hole; 42. second electric telescopic rod; 43. fixing slot; 44. second limit plate. DETAILED DESCRIPTION

[0021] See also Figures 1 to 4 In the embodiment of the utility model, an environmentally friendly air down-the-hole hammer drill tool structure includes an air down-the-hole hammer drill tool body 1, a piston rod 11 penetrating the lower end of the air down-the-hole hammer drill tool body 1, and a drill bit 3 arranged outside the piston rod 11 and located at the lower end of the air down-the-hole hammer drill tool body 1. A positioning mechanism 2 is arranged outside the air down-the-hole hammer drill tool body 1. The positioning mechanism 2 includes a mounting ring 21 mounted on the outside of the air down-the-hole hammer drill tool body 1 by bolts. The outer side of the mounting ring 21 is symmetrically provided with mounting rods 23. One side of the mounting rod 23 is provided with a mounting rod 23. An adjusting rod 24 is provided through the end, and one end of the adjusting rod 24 is connected to a positioning plate 22; a mounting groove 31 is provided at the upper end of the drill bit 3, and the lower end of the piston rod 11 is embedded in the mounting groove 31, and a limiting rod 4 is provided through the outer side of the piston rod 11. The positioning mechanism 2 can be used to position the air down-the-hole hammer drill body 1 when it is working, thereby ensuring the stability of the air down-the-hole hammer drill body 1, and at the same time, the limiting rod 4 is embedded in the limiting hole 41, so that the drill bit 3 can be positioned and installed, which is convenient for its replacement.

[0022] exist Figure 3 Middle: The inner side of the installation groove 31 is symmetrically provided with a limiting hole 41, and one end of the limiting rod 4 is embedded in the limiting hole 41. This setting utilizes one end of the limiting rod 4 to be embedded in the limiting hole 41, so that the drill bit 3 can be quickly installed.

[0023] exist Figure 4 Middle: A fixing groove 43 is opened inside the piston rod 11, and one end of the limiting rod 4 is connected to a second limiting plate 44 inside the fixing groove 43. The radius of the second limiting plate 44 is larger than the radius of the limiting rod 4. A second electric telescopic rod 42 is arranged inside the fixing groove 43, and the telescopic end of the second electric telescopic rod 42 is connected to one end of the second limiting plate 44. This setting utilizes the work of the second electric telescopic rod 42, which will make the limiting rod 4 move outward inside the fixing groove 43, and then the limiting rod 4 can be embedded in the limiting hole 41, so that the drill bit 3 can be installed.

[0024] exist Figure 2 Middle: Four mounting rods 23 are symmetrically arranged on the outside of the mounting ring 21, and the adjusting rod 24 is slidably arranged inside the mounting rod 23. A first electric telescopic rod 231 is also arranged inside the mounting rod 23, and one end of the adjusting rod 24 is installed with a first limiting plate 241 inside the mounting rod 23. The telescopic end of the first electric telescopic rod 231 is connected to one end of the first limiting plate 241. This setting utilizes the work of the first electric telescopic rod 231, which will cause the adjusting rod 24 to move outward inside the mounting rod 23, and then the positioning plate 22 can be moved toward the inner wall of the borehole to resist, thereby achieving the purpose of fixing the air down-the-hole hammer drill tool body 1.

[0025] The working principle of the utility model is as follows: when the environment-friendly air down-the-hole hammer drill tool structure of the utility model is in use, when the air down-the-hole hammer drill tool body 1 is drilling, the drill bit 3 of the air down-the-hole hammer drill tool body 1 can be in contact with the drilling position, and in order to ensure the verticality of the air down-the-hole hammer drill tool body 1 and avoid its deviation and affecting the drilling, when fixing, the first electric telescopic rod 231 inside the mounting rod 23 can be started, so that the adjusting rod 24 can move inside the mounting rod 23, and then the position of the positioning plate 22 can be adjusted, so that the positioning plate 22 can contact with the inner wall after drilling, so as to ensure the stability of the air down-the-hole hammer drill tool body 1, and when the drill bit 3 is damaged and needs to be replaced, at this time, the second electric telescopic rod 42 inside the fixing groove 43 is started, so that the limiting rod 4 can move inside the fixing groove 43, and then the limiting rod 4 can enter the inside of the fixing groove 43 and separate from the limiting hole 41, so that the drill bit 3 can be disassembled and replaced.

[0026] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An environmentally friendly air down-the-hole hammer drill structure, comprising an air down-the-hole hammer drill body (1), a piston rod (11) penetrating the lower end of the air down-the-hole hammer drill body (1), and a drill bit (3) disposed outside the piston rod (11) and located at the lower end of the air down-the-hole hammer drill body (1), characterized in that: A positioning mechanism (2) is arranged outside the air down-the-hole hammer drill body (1), and the positioning mechanism (2) comprises a mounting ring (21) mounted on the outside of the air down-the-hole hammer drill body (1) by bolts, and mounting rods (23) are symmetrically arranged on the outside of the mounting ring (21), and an adjusting rod (24) is arranged through one end of the mounting rod (23), and a positioning plate (22) is connected to one end of the adjusting rod (24); a mounting groove (31) is arranged at the upper end of the drill bit (3), and the lower end of the piston rod (11) is embedded in the interior of the mounting groove (31), and a limiting rod (4) is arranged through the outside of the piston rod (11).

2. The environmentally friendly air down-the-hole hammer drill tool structure according to claim 1 is characterized in that: A limiting hole (41) is symmetrically provided on the inner side of the installation groove (31), and one end of the limiting rod (4) is embedded in the limiting hole (41).

3. The environmentally friendly air down-the-hole hammer drill tool structure according to claim 1 is characterized in that: A fixing groove (43) is provided inside the piston rod (11), one end of the limiting rod (4) is connected to a second limiting plate (44) inside the fixing groove (43), and the radius of the second limiting plate (44) is larger than the radius of the limiting rod (4).

4. The environmentally friendly air down-the-hole hammer drill tool structure according to claim 3 is characterized in that: A second electric telescopic rod (42) is arranged inside the fixing groove (43), and a telescopic end of the second electric telescopic rod (42) is connected to one end of a second limiting plate (44).

5. The environmentally friendly air down-the-hole hammer drill tool structure according to claim 1 is characterized in that: Four mounting rods (23) are symmetrically arranged on the outside of the mounting ring (21), and the adjusting rod (24) is slidably arranged inside the mounting rod (23).

6. The environmentally friendly air down-the-hole hammer drilling tool structure according to claim 1 is characterized in that: A first electric telescopic rod (231) is also arranged inside the mounting rod (23), and a first limiting plate (241) is installed at one end of the adjusting rod (24) inside the mounting rod (23), and the telescopic end of the first electric telescopic rod (231) is connected to one end of the first limiting plate (241).

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