A pneumatic hand-held down-the-hole drill suitable for steep slope mountainous areas

By installing an adjustment plate and an adjustable control rod on a pneumatic handheld down-the-hole drill, the inconvenience and safety hazards of traditional drilling rigs in steep mountainous areas have been solved, improving construction efficiency and drilling quality.

CN224338904UActive Publication Date: 2026-06-09SINOHYDRO BUREAU 14 CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SINOHYDRO BUREAU 14 CO LTD
Filing Date
2025-08-18
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Traditional pneumatic handheld down-the-hole drills are inconvenient to operate, time-consuming and labor-intensive, pose significant safety hazards, and are prone to tilting due to uneven stress on both sides when operating on steep slopes and mountains.

Method used

A pneumatic handheld down-the-hole drill suitable for steep mountain slopes was designed. By installing an adjustment plate and an adjustable second operating lever on the machine casing, the height difference of the operating lever can be adjusted to match the standing position of the construction personnel, thereby improving the synchronization and stability of operation.

Benefits of technology

This allows construction workers to operate synchronously on steep slopes, reduces safety hazards, and ensures the verticality of the boreholes and the quality of construction.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to borehole equipment technical field discloses a pneumatic handheld type down -the -hole drill suitable for steep slope mountain, including machine case and drill rod, and drill rod is connected with machine case drive, still include adjusting board, first connecting plate, second connecting plate, first operating lever, second operating lever, first bolt, second bolt, lock nut, the utility model can realize the installation height of second operating lever is adjusted according to the slope of the steep slope of the working surface position, thereby can effectively improve the installation height of first operating lever, second operating lever and the matching degree of construction personnel standing position, the construction personnel of the upper and lower sides of drill is convenient synchronous operation drill, save time and effort, effectively reduced the security risk of the operation process because of the inconvenience of holding drill, simultaneously, avoided the situation that the holding posture difference is big and is easy to make the drill both sides uneven stress and tilt, can guarantee the perpendicularity of drill in the drilling construction process, can effectively guarantee the construction quality of pile foundation hole.
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Description

Technical Field

[0001] This utility model belongs to the field of drilling equipment technology, specifically, it relates to a pneumatic handheld down-the-hole drill suitable for steep mountain slopes. Background Technology

[0002] Mountain photovoltaic (PV) refers to PV power stations built in mountainous or hilly areas. The construction of PV power station foundations requires drilling foundation holes, which are holes drilled into the ground using drilling equipment to meet requirements for depth, size, and verticality. For drilling operations on steep mountain slopes, due to terrain limitations, large drilling equipment such as ordinary tracked down-the-hole (DTH) drills cannot reach the work surface. This necessitates manual drilling using pneumatic handheld DTH drills. Traditional pneumatic handheld DTH drills require two or four workers to stand on either side of the drill's handle to support it. However, because the handles on both sides are at the same height, the posture of workers standing on a steep slope differs significantly when simultaneously supporting the handles. This results in problems such as difficulty in simultaneous operation by workers on both sides, time and labor costs, significant safety hazards, and the risk of uneven force on both sides of the drill causing it to tilt, affecting the quality of the foundation hole construction. Utility Model Content

[0003] To solve or partially solve the problems existing in related technologies, this utility model provides a pneumatic handheld down-the-hole drill suitable for steep mountain slopes. It aims to solve the problems of inconvenience in operation, time and labor costs, and major safety hazards when using traditional pneumatic handheld down-the-hole drills for pile foundation drilling, as well as the tendency for the drill to tilt due to uneven force on both sides.

[0004] This application provides a pneumatic handheld down-the-hole drill suitable for steep mountain slopes, including a housing and a drill rod, the drill rod being driven to the housing, and also including an adjustment plate, a first connecting plate, a second connecting plate, a first operating lever, a second operating lever, a first bolt, a second bolt, and a locking nut, wherein a first connecting seat and a second connecting seat are symmetrically arranged on the front and rear outer side walls of the housing;

[0005] The first connecting plate is detachably fixed to the first connecting seat by the first bolt, and the first operating rod is horizontally fixed to the first connecting plate;

[0006] The adjusting plate is detachably fixed to the second connecting seat by the first bolt, and the second connecting plate is detachably fixed to the adjusting plate by the second bolt and the locking nut. The second operating rod is horizontally fixed to the second connecting plate, and the installation position of the second connecting plate on the adjusting plate is adjustable.

[0007] In one alternative, the adjusting plate is a long strip-shaped flat plate structure, the extension direction of the adjusting plate is parallel to the extension direction of the drill rod, and several sets of adjusting holes are arrayed on the adjusting plate.

[0008] In one alternative, the first and second levers are tubular structures that are easy to hold.

[0009] In one alternative, the pneumatic handheld down-the-hole drill rig suitable for steep mountain slopes also includes a first fixing component and a second fixing component;

[0010] Both the first and second fixing members are square groove structures with openings at both ends and one side. The inner diameter of the first fixing member matches the outer diameter of the first operating rod, and the inner diameter of the second fixing member matches the outer diameter of the second operating rod.

[0011] The first fixing member is fixedly installed in the middle of the first operating lever, and the first fixing member is horizontally fixedly installed on the first connecting plate. The second fixing member is fixedly installed in the middle of the second operating lever, and the second fixing member is horizontally fixedly installed on the second connecting plate.

[0012] In an alternative embodiment, the second connecting plate can be detachably mounted on the second connecting seat using the first bolt.

[0013] The beneficial effects of this utility model are:

[0014] This invention, by installing an adjustment plate on the second connecting seat of the machine housing, and mounting an adjustable second operating rod on the adjustment plate via the second connecting plate, allows for adjustment of the height of the second operating rod relative to the machine housing and the first operating rod. Construction personnel can adjust the installation height of the second operating rod according to the slope of the steep slope at the work site, effectively improving the matching degree between the installation height of the first and second operating rods and the standing position of the construction personnel. This effectively reduces the impact of steep slopes on the posture of construction personnel on the upper and lower sides of the drilling rig when supporting the first and second operating rods, thus facilitating simultaneous operation of the drilling rig by personnel on both sides, saving time and effort, and effectively reducing safety hazards caused by inconvenience in supporting the drilling rig during operation. Simultaneously, it avoids the situation where large differences in supporting postures can easily lead to uneven force on both sides of the drilling rig and tilting, ensuring the verticality of the drilling rig during drilling construction and effectively guaranteeing the construction quality of the pile foundation hole.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the drilling rig in one embodiment of this application;

[0018] Figure 2 This is an exploded schematic diagram of a drilling rig in one embodiment of this application;

[0019] Figure 3 This is a left-side view of a drilling rig operating on a steep slope in one embodiment of this application.

[0020] The reference numerals in the figure are as follows: 1-Chassis, 101-First connecting seat, 102-Second connecting seat, 2-Drill rod, 3-Adjusting plate, 301-Adjusting hole, 4-First connecting plate, 5-Second connecting plate, 6-First operating lever, 7-Second operating lever, 8-First bolt, 9-Second bolt, 10-Nut, 11-First fixing component, 12-Second fixing component. Detailed Implementation

[0021] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application. Similarly, the following examples are only some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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 application.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0026] In the existing technology, when using traditional pneumatic handheld down-the-hole drills for pile foundation drilling, there are problems such as inconvenience in operation, time and labor costs, and significant safety hazards. In addition, the drill is prone to tilting due to uneven force on both sides.

[0027] To address the aforementioned problems, this application proposes improvements and innovations, including the following embodiments.

[0028] In some implementations, please refer to Figure 1 , Figure 2 , Figure 3 This application provides a pneumatic handheld down-the-hole drill suitable for steep mountain slopes, including a housing 1 and a drill rod 2, with the drill rod 2 being drivenly connected to the housing 1; it also includes an adjusting plate 3, a first connecting plate 4, a second connecting plate 5, a first operating lever 6, a second operating lever 7, a first bolt 8, a second bolt 9, and a locking nut 10; wherein, a first connecting seat 101 and a second connecting seat 102 are symmetrically arranged on the front and rear outer side walls of the housing 1.

[0029] The first connecting plate 4 is detachably fixed to the first connecting seat 101 by the first bolt 8, and the first operating lever 6 is horizontally fixed to the first connecting plate 4; the adjusting plate 3 is detachably fixed to the second connecting seat 102 by the first bolt 8, the second connecting plate 5 is detachably fixed to the adjusting plate 3 by the second bolt 9 and the locking nut 10, the second operating lever 7 is horizontally fixed to the second connecting plate 5, and the installation position of the second connecting plate 5 on the adjusting plate 3 is adjustable.

[0030] In this embodiment, a first operating lever 6 is installed on the first connecting seat 101 of the chassis 1 via a first connecting plate 4. At the same time, an adjusting plate 3 is installed on the second connecting seat 102 of the chassis 1. A second operating lever 7 is installed on the adjusting plate 3 via a second connecting plate 5. The second operating lever 7 is adjustable on the adjusting plate 3 via the second connecting plate 5, thereby enabling the adjustment of the height position of the second operating lever 7 relative to the chassis 1 and the first operating lever 6, so that there is a height difference between the second operating lever 7 and the first operating lever 6.

[0031] Therefore, when drilling for pile foundation holes in steep mountainous terrain, construction personnel can adjust the installation height of the second operating rod 7 according to the slope of the slope at the working face. By adjusting the height difference between the second operating rod 7 and the first operating rod 6, the inclination angle of the line connecting the axes of the first operating rod 6 and the second operating rod 7 is matched with the slope. The construction personnel supporting the first operating rod 6 and the second operating rod 7 stand at the high and low positions of the slope, respectively. This effectively improves the matching degree between the installation height of the first operating rod 6 and the second operating rod 7 and the standing position of the construction personnel. It can effectively reduce the impact of the steep slope on the posture of the construction personnel on the upper and lower sides of the drilling rig when supporting the first operating rod 6 and the second operating rod 7, thus facilitating the synchronous operation of the drilling rig by the construction personnel on the upper and lower sides of the drilling rig. This saves time and effort and effectively reduces the safety hazards caused by the inconvenience of supporting the drilling rig during operation. At the same time, it avoids the situation where the drilling rig tilts due to uneven force on both sides caused by large differences in the supporting posture. This ensures the verticality of the drilling rig during the drilling process and effectively guarantees the construction quality of the pile foundation hole.

[0032] In addition, the first operating lever 6 is detachably installed between the first connecting plate 4 and the first connecting seat 101, the second operating lever 7 is detachably installed between the second connecting plate 5 and the adjusting plate 3, and the adjusting plate 3 is detachably installed between the second connecting seat 102, which facilitates assembly, disassembly and transportation, and maintenance and replacement.

[0033] Specifically, in practical applications, for pneumatic handheld down-the-hole drills equipped with detachable handles that are bolted on, the purchased pneumatic handheld down-the-hole drills can be directly modified. The handle is removed, and adjustment plates 3, first connecting plates 4, and second connecting plates 5 are designed and manufactured to match the original handle's installation position. This allows for the installation of height-adjustable operating rods with height differences on the pneumatic handheld down-the-hole drill, meeting the drilling needs of pile foundation holes in steep mountainous conditions. The adjustment plates 3, first connecting plates 4, and second connecting plates 5 can be made of steel plates, and the first operating rod 6 and second operating rod 7 can be made of steel pipes. The structure is simple, easy to manufacture and assemble, and has low manufacturing costs.

[0034] In some embodiments, the adjusting plate 3 is a long strip-shaped flat plate structure, the extension direction of the adjusting plate 3 is parallel to the extension direction of the drill rod 2, and a number of adjusting holes 301 are arrayed on the adjusting plate 3. The adjusting holes 301 are matched with the second bolt 9. In this way, the second connecting plate 5 can be installed at different positions on the adjusting plate 3 by the second bolt 9 and the locking nut 10, thereby realizing the adjustment of the installation height of the second operating rod 7 according to the slope of the steep slope at the working surface.

[0035] In some embodiments, the first operating lever 6 and the second operating lever 7 are tubular structures that are easy to hold, so that construction personnel can hold the first operating lever 6 and the second operating lever 7 stably and comfortably.

[0036] In some embodiments, the pneumatic handheld down-the-hole drill suitable for steep mountain slopes further includes a first fixing member 11 and a second fixing member 12; both the first fixing member 11 and the second fixing member 12 are square groove structures with openings at both ends and one side, and the inner diameter of the first fixing member 11 matches the outer diameter of the first operating lever 6, and the inner diameter of the second fixing member 12 matches the outer diameter of the second operating lever 7; the first fixing member 11 is fixedly clamped in the middle of the first operating lever 6, and the first fixing member 11 is horizontally fixedly installed on the first connecting plate 4, the second fixing member 12 is fixedly clamped in the middle of the second operating lever 7, and the second fixing member 12 is horizontally fixedly installed on the second connecting plate 5; specifically, the first operating lever 6 and the first fixing member 11, the second operating lever 7 and the second fixing member 12 are fixedly welded together, and the first fixing member 11 and the first connecting plate 4, the second fixing member 12 and the second connecting plate 5 are fixedly welded together.

[0037] Thus, by installing the first fixing member 11 between the first operating lever 6 and the first connecting plate 4, and installing the second fixing member 12 between the second operating lever 7 and the second connecting plate 5, the number of welding points between the first operating lever 6 and the first fixing member 11, and between the first fixing member 11 and the first connecting plate 4, and the number of welding points between the second operating lever 7 and the second fixing member 12, and between the second fixing member 12 and the second connecting plate 5, is effectively increased. This effectively improves the connection strength between the components, enhances the installation stability of the first operating lever 6 and the second operating lever 7, and extends their service life.

[0038] In some embodiments, the second connecting plate 5 can be detachably fixed to the second connecting seat 102 by means of the first bolt 8. In this way, when drilling pile foundation holes on a flat working surface, the adjusting plate 3 can be removed from the second connecting seat 102 and the second connecting plate 5 can be installed on the second connecting seat 102 by means of the first bolt 8, so that the first operating rod 6 and the second operating rod 7 are at the same horizontal height to meet the construction requirements of the flat working surface.

[0039] Finally, it should be noted that although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention, all of which should be included within the protection scope of this application.

Claims

1. A pneumatic handheld down-the-hole drill suitable for steep mountain slopes, comprising a housing (1) and a drill rod (2), wherein the drill rod (2) is drivenly connected to the housing (1), characterized in that: It also includes an adjustment plate (3), a first connecting plate (4), a second connecting plate (5), a first operating lever (6), a second operating lever (7), a first bolt (8), a second bolt (9), and a locking nut (10), wherein a first connecting seat (101) and a second connecting seat (102) are symmetrically arranged on the front and rear outer side walls of the housing (1); The first connecting plate (4) is detachably fixed on the first connecting seat (101) by the first bolt (8), and the first operating lever (6) is horizontally fixed on the first connecting plate (4); The adjusting plate (3) is detachably fixed on the second connecting seat (102) by the first bolt (8), the second connecting plate (5) is detachably fixed on the adjusting plate (3) by the second bolt (9) and the locking nut (10), the second operating lever (7) is horizontally fixed on the second connecting plate (5), and the installation position of the second connecting plate (5) on the adjusting plate (3) is flexible.

2. The pneumatic handheld down-the-hole drill rig suitable for steep mountain slopes according to claim 1, characterized in that: The adjustment plate (3) is a long strip flat plate structure. The extension direction of the adjustment plate (3) is parallel to the extension direction of the drill rod (2), and several sets of adjustment holes (301) are arrayed on the adjustment plate (3).

3. The pneumatic handheld down-the-hole drill rig suitable for steep mountain slopes according to claim 1, characterized in that: The first operating lever (6) and the second operating lever (7) are tubular structures that are easy to hold.

4. The pneumatic handheld down-the-hole drill rig suitable for steep mountain slopes according to claim 1 or 3, characterized in that: It also includes a first fastener (11) and a second fastener (12); The first fixing member (11) and the second fixing member (12) are both square groove structures with openings at both ends and one side. The inner diameter of the first fixing member (11) matches the outer diameter of the first operating rod (6), and the inner diameter of the second fixing member (12) matches the outer diameter of the second operating rod (7). The first fixing member (11) is fixedly installed in the middle of the first operating lever (6), and the first fixing member (11) is horizontally fixedly installed on the first connecting plate (4). The second fixing member (12) is fixedly installed in the middle of the second operating lever (7), and the second fixing member (12) is horizontally fixedly installed on the second connecting plate (5).

5. The pneumatic handheld down-the-hole drill rig suitable for steep mountain slopes according to claim 1, characterized in that: The second connecting plate (5) can be detachably fixed to the second connecting seat (102) by the first bolt (8).