Percussion drill equipment for pile body

By designing a movable rod and blower structure in the impact drilling equipment, the problem of dust spreading during drilling was solved, achieving a better dust removal effect.

CN224115228UActive Publication Date: 2026-04-14CHINA WATER CONSERVANCY & HYDROPOWER NO 9 ENG BUREAU CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-01-09
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing impact drilling equipment for piles produces dust during drilling, resulting in poor dust removal efficiency.

Method used

A structure including a housing, a movable rod, a cylinder, a spring, and a blower was designed. The movable rod drives the outer sleeve to move, blocking the drilled hole, and the dust is sucked in through the connecting hose and filter plate to achieve dust removal.

Benefits of technology

It effectively blocks and absorbs dust generated during drilling, improving the dust removal efficiency of the equipment and reducing dust dispersion.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses percussion drill equipment for a pile body, and relates to the technical field of percussion drills, the percussion drill equipment comprises a shell and a lower barrel, a percussion drill body and an air cylinder are fixedly installed in the shell, a first movable rod is arranged below the shell, a guide hole is formed in the shell, a second movable rod is movably installed on the inner side of the guide hole, and the lower barrel is connected with the shell. A connecting frame is fixedly installed on the outer side of the first movable rod and the outer side of the second movable rod. Through mutual cooperation of an air cylinder, a first movable rod, a second movable rod and a spring, an outer sleeve can be driven to move up and down and play a role in buffering the outer sleeve, the outer sleeve is located on the outer side of a drill bit and plays a role in shielding the drilling position, the outer sleeve is connected with an upper cylinder body and a lower cylinder body through a connecting hose, and an air blower is arranged on the outer side of the lower cylinder body; and dust generated by drilling is sucked into the upper barrel and the lower barrel, the filter plate is arranged in the lower barrel, large-particle dust is filtered, dust diffusion is avoided, and the dust removal effect of the equipment is improved.
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Description

Technical Field

[0001] This utility model relates to the field of impact drilling technology, specifically an impact drilling device for piles. Background Technology

[0002] Piles are part of a bridge, and drilling is required during construction using impact drilling equipment. Impact drills are mainly rotary cutting tools, with an impact mechanism that generates impact force by relying on the operator's thrust. They are electric tools used for drilling holes in materials such as bricks, blocks, and lightweight walls.

[0003] Nowadays, most impact drilling equipment for piles has a simple external structure and lacks shielding and dust collection structures. The dust generated during drilling is diffused in the air, and the equipment has a poor dust removal effect. Utility Model Content

[0004] The purpose of this utility model is to provide an impact drilling device for piles to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an impact drill for pile foundations, comprising a housing and a lower cylinder. An impact drill body and a cylinder are fixedly installed inside the housing. A movable rod is located below the housing. A guide hole is opened inside the housing. A movable rod is movably installed inside the guide hole. A connecting frame is fixedly installed outside the movable rods. A limiting block is fixedly installed at the end of the movable rod away from the housing. A limiting block is fixedly installed at the end of the movable rod away from the housing. An outer sleeve is movably installed outside the movable rods. A spring is sleeved on the outer sides of the movable rods. A positioning rod is fixedly installed on the outer side of the outer sleeve. An upper cylinder is threaded onto the upper end of the lower cylinder. One end of a connecting hose is fixedly installed on the outer side of the upper cylinder. A connecting interface is fixedly installed on the outer side of the outer sleeve. A blower is fixedly installed on the outer side of the lower cylinder. A filter plate is sleeved on the inner side of the lower cylinder.

[0006] Preferably, the movable rod is fixedly connected to the output end of the cylinder, and the movable rod is parallel to the drill bit of the impact drill body.

[0007] Preferably, the second movable rod is parallel to the first movable rod, and the drill bit of the impact drill body passes through the connecting frame.

[0008] Preferably, the outer sleeve is fitted with the upper ends of the first limiting block and the second limiting block, respectively, and the spring is fitted with the upper end of the outer sleeve.

[0009] Preferably, the drill bit of the impact drill body passes through the outer sleeve, and four positioning rods are arranged in a ring about the vertical center line of the outer sleeve.

[0010] Preferably, the upper cylinder and the lower cylinder are internally connected, and the other end of the connecting hose is threaded to the connecting interface.

[0011] Preferably, the air inlet of the blower extends into the interior of the lower cylinder, and the filter plate is located above the blower.

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

[0013] This utility model utilizes a combination of a cylinder, movable rod one, movable rod two, and a spring to move the outer sleeve up and down, providing a buffering effect. The outer sleeve is located outside the drill bit, shielding the drilling area. It is connected to the upper and lower cylinders via a connecting hose. A blower is installed on the outside of the lower cylinder to draw dust generated during drilling into the upper and lower cylinders. A filter plate is installed inside the lower cylinder to filter large dust particles, preventing dust from spreading and improving the dust removal efficiency of the equipment. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of movable rod one and movable rod two of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the outer sleeve of this utility model;

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the lower cylinder of this utility model.

[0018] The components are: 1. Housing; 2. Impact drill body; 3. Cylinder; 4. Movable rod one; 5. Guide hole; 6. Movable rod two; 7. Connecting frame; 8. Limiting block one; 9. Limiting block two; 10. Outer sleeve; 11. Spring; 12. Positioning rod; 13. Lower cylinder; 14. Upper cylinder; 15. Connecting hose; 16. Connecting interface; 17. Blower; 18. Filter plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1

[0021] Please see Figure 1The diagram shows an impact drill for pile driving, comprising a housing 1 and a lower cylinder 13. An impact drill body 2 and a cylinder 3 are fixedly installed inside the housing 1. A movable rod 4 is located below the housing 1. A guide hole 5 is provided inside the housing 1, and a movable rod 6 is movably installed inside the guide hole 5. A connecting frame 7 is fixedly installed on the outer sides of the movable rods 4 and 6. A limiting block 8 is fixedly installed at the end of the movable rod 4 away from the housing 1, and a limiting block 9 is fixedly installed at the end of the movable rod 6 away from the housing 1. An outer sleeve 10 is movably installed on the outer side of movable rod 1 4 and movable rod 2 6. A spring 11 is sleeved on the outer side of movable rod 1 4 and movable rod 2 6. A positioning rod 12 is fixedly installed on the outer side of the outer sleeve 10. An upper cylinder 14 is threaded onto the upper end of the lower cylinder 13. One end of a connecting hose 15 is fixedly installed on the outer side of the upper cylinder 14. A connecting interface 16 is fixedly installed on the outer side of the outer sleeve 10. A blower 17 is fixedly installed on the outer side of the lower cylinder 13. A filter plate 18 is sleeved on the inner side of the lower cylinder 13.

[0022] Please see Figure 1 The movable rod 4 is fixedly connected to the output end of the cylinder 3, and the movable rod 4 is parallel to the drill bit of the impact drill body 2.

[0023] In this embodiment: Cylinder 3 drives movable rod 4 to move up and down.

[0024] Please see Figure 2 The second movable rod 6 is parallel to the first movable rod 4, and the drill bit of the impact drill body 2 passes through the connecting frame 7.

[0025] In this embodiment: when movable rod 4 moves, it drives movable rod 6 to move through connecting frame 7.

[0026] Please see Figure 1 The outer sleeve 10 is attached to the upper ends of the first limiting block 8 and the second limiting block 9 respectively, and the spring 11 is attached to the upper end of the outer sleeve 10.

[0027] In this embodiment: the spring 11 applies a downward elastic force to the outer sleeve 10, and the limiting block 8 and the limiting block 9 prevent the outer sleeve 10 from falling off.

[0028] Please see Figure 3 The drill bit of the impact drill body 2 passes through the outer sleeve 10, and four positioning rods 12 are arranged in a ring around the vertical center line of the outer sleeve 10.

[0029] In this embodiment: a crosshair is drawn at the location to be drilled, and the positioning rod 12 is aligned with the crosshair to facilitate the drill bit of the impact drill body 2 being aligned with the location to be drilled.

[0030] Working principle: Draw a crosshair at the location to be drilled, align the positioning rod 12 with the crosshair, so that the drill bit of the impact drill body 2 can be aligned with the location to be drilled. Turn on the impact drill body 2, the drill bit rotates, and drills the pile. Then turn on the cylinder 3, the cylinder 3 drives the movable rod 4 to move upward, and the drill bit moves downward at a constant speed. When the movable rod 4 moves, it drives the movable rod 6 to move through the connecting frame 7. The spring 11 applies a downward elastic force to the outer sleeve 10. The limiting block 8 and the limiting block 9 prevent the outer sleeve 10 from falling off, reducing the impact of the vibration generated by the drilling on the outer sleeve 10. Turn on the blower 17, so that the upper cylinder 14 and the lower cylinder 13 generate suction. The dust generated by the drilling is transmitted to the interior of the upper cylinder 14 and the lower cylinder 13 through the connecting hose 15. The filter plate 18 filters large dust particles, improving the dust removal effect of the equipment.

[0031] Example 2

[0032] Please see Figure 1 The upper cylinder 14 and the lower cylinder 13 are internally connected, and the other end of the connecting hose 15 is threaded to the connecting interface 16.

[0033] In this embodiment, the dust generated during drilling is transmitted to the interior of the upper cylinder 14 and the lower cylinder 13 through the connecting hose 15.

[0034] Please see Figure 4 The air inlet of the blower 17 extends into the interior of the lower cylinder 13, and the filter plate 18 is located above the blower 17.

[0035] In this embodiment: the blower 17 is turned on, which generates suction inside the upper cylinder 14 and the lower cylinder 13, and the filter plate 18 filters large dust particles.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0037] 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. A pile drilling device, comprising a housing (1) and a lower cylinder (13), characterized in that: The impact drill body (2) and cylinder (3) are fixedly installed inside the housing (1). A movable rod (4) is provided at the bottom of the housing (1). A guide hole (5) is opened inside the housing (1). A movable rod (6) is movably installed inside the guide hole (5). A connecting frame (7) is fixedly installed on the outside of the movable rod (4) and the movable rod (6). A limiting block (8) is fixedly installed at the end of the movable rod (4) away from the housing (1). A limiting block (9) is fixedly installed at the end of the movable rod (6) away from the housing (1). An outer sleeve (10) is movably installed on the outside of (6). A spring (11) is sleeved on the outside of the first movable rod (4) and the second movable rod (6). A positioning rod (12) is fixedly installed on the outside of the outer sleeve (10). An upper cylinder (14) is threaded on the upper end of the lower cylinder (13). One end of a connecting hose (15) is fixedly installed on the outside of the upper cylinder (14). A connecting interface (16) is fixedly installed on the outside of the outer sleeve (10). A blower (17) is fixedly installed on the outside of the lower cylinder (13). A filter plate (18) is sleeved on the inside of the lower cylinder (13).

2. The impact drilling equipment for pile bodies according to claim 1, characterized in that: The movable rod (4) is fixedly connected to the output end of the cylinder (3), and the movable rod (4) is parallel to the drill bit of the impact drill body (2).

3. The impact drilling equipment for pile bodies according to claim 1, characterized in that: The second movable rod (6) is parallel to the first movable rod (4), and the drill bit of the impact drill body (2) passes through the connecting frame (7).

4. The impact drilling equipment for pile bodies according to claim 1, characterized in that: The outer sleeve (10) is attached to the upper ends of the first limiting block (8) and the second limiting block (9) respectively, and the spring (11) is attached to the upper end of the outer sleeve (10).

5. The impact drilling equipment for pile bodies according to claim 1, characterized in that: The drill bit of the impact drill body (2) passes through the outer sleeve (10), and four positioning rods (12) are arranged in a ring about the vertical center line of the outer sleeve (10).

6. The impact drilling equipment for pile bodies according to claim 1, characterized in that: The upper cylinder (14) and the lower cylinder (13) are internally connected to each other, and the other end of the connecting hose (15) is threadedly connected to the connecting interface (16).

7. The impact drilling equipment for pile bodies according to claim 1, characterized in that: The air inlet of the blower (17) extends into the interior of the lower cylinder (13), and the filter plate (18) is located above the blower (17).