Hydrogeological exploration drilling tool

Abstract

The utility model belongs to the technical field of drilling tools, and provides a hydrogeological exploration drilling tool which comprises a motor shell and a drilling rod. A motor is arranged in the motor shell; handles are symmetrically arranged on the left side and the right side of the motor shell, and air pumps are installed at the ends, close to the motor shell, of the handles. A drill rod is installed at the bottom of the motor shell, and air holes are formed in the side wall of the drill rod at equal intervals. A mounting cavity is formed in the lower portion of the motor shell, a connecting rod is arranged in the middle of the mounting cavity, the top of the connecting rod is connected with the transmission end of the motor, and the bottom of the connecting rod is connected with the top of the drill rod; according to the scheme, the exploration drilling tool with the air blowing function is provided, the portability of single-person operation is achieved, airflow rushes into a drill hole through the ventilation door, the inner wall of the drill hole is impacted and expanded through the airflow, loose particles on the inner wall of the drill hole are blown down, the frequency of secondary drilling is reduced, and smooth holes can be drilled more efficiently.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling tools, in particular to a hydrogeological exploration drilling tool. Background Art

[0002] Hydrogeological survey is also called "hydrogeological survey". It refers to the hydrogeological investigation and research work carried out to find out the hydrogeological conditions of a region. It aims to understand the causes, distribution and movement laws of groundwater and surface water. It provides a basis for the rational exploitation and utilization of water resources and the correct design and construction of foundation and piling projects. It includes underground and above-ground hydrological surveys. Underground hydrological survey mainly investigates and studies the changes in groundwater levels, flow directions, chemical composition, etc. at different times of the year, finds out the burial conditions and corrosiveness of groundwater, determines the possible changes and impacts of groundwater during the construction and use of buildings, and puts forward prevention and control suggestions.

[0003] In exploration, it is often necessary to take soil and sediment samples near water sources to obtain geological samples near water sources, so drilling equipment is often used; sampling may need to be completed multiple times, and other tests need to be carried out in the borehole. During operation, the inner wall of the borehole often collapses. This is because there are many soft particles on the inner wall of the borehole, which will fall into the hole after being taken out. Multiple drilling operations are required to obtain a relatively solid hole. The operation cycle will become longer and it is easy to affect the service life of the drill bit. For this reason, we proposed a hydrogeological exploration drill. Utility Model Content

[0004] The purpose of the utility model is to provide a hydrogeological exploration drilling tool to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydrogeological exploration drilling tool, comprising a motor housing and a drill rod;

[0006] A motor is arranged in the motor housing; handles are symmetrically arranged on the left and right sides of the motor housing, and an air pump is installed at one end of the handle close to the motor housing;

[0007] A drill rod is installed at the bottom of the motor housing, and air holes are evenly spaced on the side wall of the drill rod;

[0008] An installation cavity is provided at the lower part of the motor housing, a connecting rod is provided in the middle part of the installation cavity, the top of the connecting rod is connected to the transmission end of the motor, and the bottom of the connecting rod is connected to the top of the drill rod;

[0009] The upper part of the connecting rod is evenly provided with air ducting holes, and the lower part of the installation cavity is symmetrically provided with four groups of air valves, and the positions of the air valves and the air ducting holes correspond to each other;

[0010] The inner cavities of the connecting rod and the drill rod are both provided with air passages, and the two air passages are interconnected; the air passages are respectively interconnected with the air inlet hole and the air hole.

[0011] Preferably, drilling blades are equidistantly arranged on the drill rod.

[0012] Preferably, a protective cover is sleeved on the bottom of the motor housing, the protective cover is trumpet-shaped, and an irradiation lamp is installed in the inner cavity of the protective cover.

[0013] Preferably, a sealing cavity is provided at the installation position of the air valve and the air ducting hole, and the sealing cavity surrounds the upper part of the connecting rod.

[0014] Preferably, a one-way air-permeable door is provided in the air hole, and a limiting plate is provided on the inner side of the air-permeable door so that the air-permeable door cannot be turned inwards.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The present invention provides an exploration drilling tool with a blowing function and is portable and can be operated by one person. When the drill rod penetrates deep into the ground, the air pump can be turned on synchronously to inflate the air holes on the drill rod. A number of one-way air doors are provided on the air holes, which are turned outward under the blowing of the air flow. The air flow rushes into the borehole through the air doors, and the loose particles on the inner wall of the borehole are blown away by the air flow impacting and expanding the inner wall of the borehole, thereby reducing the frequency of secondary drilling and being able to drill smooth holes more efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the front view of the utility model;

[0018] Figure 2 It is a top view of the utility model;

[0019] Figure 3 This is a schematic diagram of the motor housing of the utility model;

[0020] Figure 4 This is a partial enlarged view of the motor housing of the utility model;

[0021] Figure 5 It is a partial schematic diagram of the ventilation door of the utility model.

[0022] In the figure: 1 motor housing; 2 protective cover; 3 handle; 4 drill rod; 5 air hole; 6 air pump; 7 installation cavity; 8 connecting rod; 9 valve; 10 air inlet hole; 11 inflation channel. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Example:

[0026] See also Figure 1-5 , the utility model provides a technical solution for a hydrogeological exploration drilling tool: comprising a motor housing 1 and a drill rod 4;

[0027] A motor is arranged in the motor housing 1; handles 3 are symmetrically arranged on the left and right sides of the motor housing 1, and an air pump 6 is installed at one end of the handle 3 close to the motor housing 1. The start buttons of the air pump 6 and the motor are respectively arranged at the fingertips of the two handles 3, so as to facilitate starting and shutting down the device at any time;

[0028] A drill rod 4 is installed at the bottom of the motor housing 1, and drilling blades are evenly spaced on the drill rod 4, and air holes 5 are evenly spaced on the side wall of the drill rod 4; the drilling blades are spiral blades;

[0029] The bottom of the motor housing 1 is sleeved with a protective cover 2, which is horn-shaped, and an illumination lamp is installed in the inner cavity of the protective cover 2. The protective cover 2 can reduce and avoid the splashing of soil when the drill rod 4 rotates, and prevent it from splashing directly to the face;

[0030] The lower part of the motor housing 1 is provided with an installation cavity 7, and a connecting rod 8 is provided in the middle of the installation cavity 7. The top of the connecting rod 8 is connected to the transmission end of the motor, and the bottom of the connecting rod 8 is connected to the top of the drill rod 4.

[0031] The upper part of the connecting rod 8 is evenly provided with air holes 10, and the lower part of the installation cavity 7 is symmetrically provided with four groups of air valves 9, and the positions of the air valves 9 and the air holes 10 correspond to each other;

[0032] A sealed cavity is provided at the installation position of the air valve 9 and the air duct hole 10, and the sealed cavity surrounds the upper part of the connecting rod 8. The air valve 9 and the air pump 6 are connected to each other. When the air pump 6 is working, air flow is injected into the sealed cavity, and then the air flow flows into the inflation channel 11 along the air duct hole 10 opened on the connecting rod 8, and flows to the plurality of air holes 5;

[0033] The inner cavities of the connecting rod 8 and the drill rod 4 are both provided with an air passage 11, and the two air passages 11 are interconnected; the air passages 11 are interconnected with the air inlet hole 10 and the air hole 5 respectively;

[0034] A one-way air-permeable door is arranged in the air hole 5, and a limiting plate is arranged on the inner side of the air-permeable door so that the air-permeable door cannot be turned inwards.

[0035] This solution provides an exploration drilling tool with a blowing function, and has the portability of single-person operation. First, the drilling tool is connected to a power source, and the handles 3 on the left and right sides of the motor housing 1 are held, and the drill rod 4 is aimed at the ground to drill a hole. When the drill rod 4 penetrates deep into the ground, the air pump 6 can be turned on synchronously to inflate the air hole 5 on the drill rod 4;

[0036] A plurality of one-way air doors are arranged on the air hole 5, which are turned outward under the blowing of the air flow, and the air flow rushes into the borehole through the air doors. The loose particles on the inner wall of the borehole are blown down by the air flow impacting and expanding the inner wall of the borehole, thereby reducing the frequency of secondary drilling and drilling smooth holes more efficiently. A limit plate is arranged on the inner side of the air door, so that the air door can only be turned outward to prevent mud and sand from pouring into the drill rod 4, so that the drilling tool can drill and sample more efficiently.

[0037] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0038] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydrogeological exploration drilling tool, comprising a motor housing (1) and a drill rod (4), characterized in that: A motor is arranged in the motor housing (1); handles (3) are symmetrically arranged on the left and right sides of the motor housing (1); an air pump (6) is installed at one end of the handle (3) close to the motor housing (1); A drill rod (4) is installed at the bottom of the motor housing (1), and air holes (5) are arranged at equal intervals on the side wall of the drill rod (4); The lower part of the motor housing (1) is provided with an installation cavity (7), the middle part of the installation cavity (7) is provided with a connecting rod (8), the top of the connecting rod (8) is connected to the transmission end of the motor, and the bottom of the connecting rod (8) is connected to the top of the drill rod (4); The upper part of the connecting rod (8) is evenly provided with air ducting holes (10), and the lower part of the installation cavity (7) is symmetrically provided with four groups of air valves (9), and the positions of the air valves (9) and the air ducting holes (10) correspond to each other; The inner cavities of the connecting rod (8) and the drill rod (4) are both provided with an air filling passage (11), and the two air filling passages (11) are interconnected; the air filling passages (11) are respectively interconnected with the air inlet hole (10) and the air hole (5).

2. A hydrogeological exploration drilling tool according to claim 1, characterized in that: Drilling blades are equidistantly arranged on the upper portion of the drill rod (4).

3. A hydrogeological exploration drilling tool according to claim 1, characterized in that: A protective cover (2) is sleeved on the bottom of the motor housing (1); the protective cover (2) is trumpet-shaped, and an irradiation lamp is installed in the inner cavity of the protective cover (2).

4. A hydrogeological exploration drilling tool according to claim 1, characterized in that: A sealing cavity is provided at the installation position of the air valve (9) and the air guide hole (10), and the sealing cavity surrounds the upper part of the connecting rod (8).

5. The hydrogeological exploration drilling tool according to claim 1, characterized in that: A one-way air-permeable door is arranged in the air hole (5), and a limiting plate is arranged on the inner side of the air-permeable door so that the air-permeable door cannot be turned inwards.

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