Stratum settlement monitoring layering mark bottom inserting drill rod

Abstract

The utility model relates to the technical field of geological monitoring, and provides a stratigraphic settlement monitoring layering mark bottom inserting drill rod which comprises a drill rod body, a connecting hole is formed in the top of the drill rod body, the upper portion of the connecting hole is a threaded section, the lower portion of the connecting hole is a communicating section, and a guide hole is formed in the inner wall of the connecting section. A guide hole is formed in the drill body, the guide hole is communicated with the peripheral surface of the drill body through a through hole, an expansion plug is arranged in the guide hole, the expansion plug is in sliding contact with the inner wall of the guide hole, an inserting drill section is fixedly mounted on the expansion plug, and the expansion plug fully opens the inserting drill section through pressurization, so that the inserting drill section is tightly connected with a contact stratum. The utility model aims to provide a stratified mark bottom inserting drill rod for monitoring stratum settlement, so that the connection between a mark bottom and a soil layer is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of geological monitoring, in particular to a bottom-inserting drill for a stratum settlement monitoring layered marker. Background Art

[0002] The area of ​​ground subsidence is large, the types are complex, and the hazards are diverse. The harm of ground subsidence to the environment, residents' lives, and engineering construction is becoming more and more serious, seriously restricting the sustainable development of social economy. Ground subsidence is a slow-changing geological disaster that is generally not easy to detect, but it is irreversible after it is formed, causing extremely serious regional natural disasters. Therefore, in a sense, controlling subsidence is also preventing subsidence. The effectiveness of preventing subsidence is directly related to monitoring, and preventing ground subsidence must have complete monitoring facilities and supporting monitoring methods.

[0003] Ground subsidence monitoring primarily uses layered markers, which are typically inserted into the ground using a drill at the base. Chinese utility model patent publication number CN205604209U discloses a ground subsidence monitoring bedrock marker and a layered marker base device with a drill. However, the connection between this drill and the soil layer is not stable, which can easily lead to deviations in detection results. Utility Model Content

[0004] In view of the defects in the prior art, the purpose of the present invention is to provide a stratum settlement monitoring layered marker with a bottom insertion drill, so that the connection between the marker bottom and the soil layer is more stable.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: a stratum settlement monitoring layered mark bottom insert drill, comprising a drill body, a connecting hole is opened on the top of the drill body, the upper part of the connecting hole is a threaded section, the lower part of the connecting hole is a connecting section, a guide hole is opened on the inner wall of the connecting section, the guide hole is connected to the outer peripheral surface of the drill body through a through hole, a plug is provided in the guide hole, the plug is in sliding contact with the inner wall of the guide hole, a drill petal is fixedly installed on the plug, the drill petal is in sliding contact with the inner wall of the through hole.

[0006] Furthermore, a first guide surface extending inwardly and tilting outwardly is formed on the inner end surface of the expansion plug;

[0007] An accommodating groove is provided on the inner wall of the guide hole, a limiting block and a spring are provided in the accommodating groove, the limiting block is in sliding contact with the inner wall of the accommodating groove, a second guide surface adapted to the first guide surface is formed on the limiting block, the first end of the spring is fixedly connected to the inner wall of the accommodating groove, and the second end of the spring is fixedly connected to the limiting block.

[0008] Furthermore, a spike portion is formed on the outer end surface of the inserting drill segment.

[0009] Furthermore, a separation ring is fixedly mounted on the inner wall of the connecting hole, and the separation ring is located between the threaded section and the connecting section.

[0010] Furthermore, the number of the connecting holes is four, and the four connecting holes are arranged at equal intervals along the circumference of the drill body.

[0011] Furthermore, a plurality of sharp corners are fixedly mounted on the bottom of the drill body, and the plurality of sharp corners are arranged at equal intervals along the circumference of the drill body.

[0012] The beneficial effects of the present invention are as follows: the present invention provides a stratum settlement monitoring stratified marker bottom insertion drill. When the flushing hole operation is carried out, the flushing liquid will enter the guide hole through the connecting section and push the expansion plug to move outward until the drill petals extend from the through hole and are inserted into the soil layer, thereby making the connection between the marker bottom and the soil layer more stable and ensuring the accuracy of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the present utility model;

[0015] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0016] Figure numerals: 10-drill body, 11-connecting hole, 12-threaded section, 13-connecting section, 14-guide hole, 15-through hole, 16-accommodating groove, 17-pointed corner, 20-expansion plug, 21-drilling petal, 22-first guide surface, 23-spike portion, 30-limiting block, 31-spring, 32-second guide surface, 40-separating ring. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] In this application, unless otherwise specified or limited, the terms "connect" and "fix" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0019] In the description of this application, it should be understood that the terms "longitudinal", "transverse", "horizontal", "top", "bottom", "up", "down", "inside" and "outside" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0020] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the description of this utility model, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0021] like Figure 1-Figure 3 As shown, the utility model provides a stratum settlement monitoring layered marker bottom insertion drill, including a drill body 10, a connecting hole 11 is opened on the top of the drill body 10, the upper part of the connecting hole 11 is a threaded section 12, and the lower part of the connecting hole 11 is a connecting section 13. The marker rod is threadedly connected to the threaded section 12, thereby realizing the connection between the marker rod and the marker bottom. The above contents are all existing technologies, and the specific structure will not be repeated here.

[0022] A downwardly sloping and outwardly extending guide hole 14 is formed on the inner wall of the connecting section. Guide hole 14 communicates with the outer circumference of the drill body 10 via a through hole 15. A plug 20 is disposed within guide hole 14 and is in sliding contact with the inner wall of guide hole 14. A drill insert 21 is fixedly mounted on plug 20 and is in sliding contact with the inner wall of through hole 15.

[0023] In the initial state, the inserting blade 21 is hidden in the guide hole 14 and the through hole 15 .

[0024] When the flushing hole operation is carried out, the flushing liquid will enter the guide hole 14 through the benchmark and the connecting section 13, and push the expansion plug 20 outward under the action of water pressure until the inserted rod petal 21 extends from the through hole 15 and is inserted into the soil layer, thereby making the connection between the benchmark bottom and the soil layer more stable and ensuring the accuracy of the test results.

[0025] In one embodiment, a first guide surface 22 extending inwardly and tilted outwardly is formed on the inner end surface of the expansion plug 20 .

[0026] A receiving groove 16 is defined on the inner wall of the guide hole 14. A stopper 30 and a spring 31 are disposed within the receiving groove 16. The stopper 30 is in sliding contact with the inner wall of the receiving groove 16 and has a second guide surface 32 formed thereon that conforms to the first guide surface 22. A first end of the spring 31 is fixedly connected to the inner wall of the receiving groove 16, while a second end of the spring 31 is fixedly connected to the stopper 30.

[0027] In the initial state, the expansion plug 20 is located outside the limiting block 30 .

[0028] When the flushing liquid pushes the expansion plug 20 outward under the action of water pressure, the first guide surface 22 will first contact the second guide surface 32, thereby pushing the limit block 30 into the receiving groove 16. At this time, the spring 31 is in a compressed state. The expansion plug 20 continues to move until it contacts the bottom of the guide hole 14. At this time, the plunger 21 extends from the through hole 15 and inserts into the soil layer. At the same time, under the action of the spring 31, the limit block 30 resets and contacts the outer end surface of the expansion plug 20, thereby limiting the position of the expansion plug 20, preventing the expansion plug 20 and the plunger 21 from moving back, and further strengthening the connection between the base and the soil layer.

[0029] In one embodiment, a spike portion 23 is formed on the outer end surface of the insertion rod segment 21 to facilitate better insertion of the base marker into the soil layers.

[0030] In one embodiment, a separation ring 40 is fixedly mounted on the inner wall of the connecting hole 11 , and the separation ring 40 is located between the threaded section and the connecting section 13 .

[0031] When the rod is threadedly engaged with the threaded section 12 and the base of the rod contacts the separating ring 40, the threaded engagement is complete. This design can prevent the rod from blocking the guide hole 14, making the operation of the present invention more concise.

[0032] In one embodiment, the number of the connecting holes 11 is four, and the four connecting holes 11 are arranged at equal intervals along the circumference of the drill body 10 .

[0033] In one embodiment, a plurality of sharp corners 17 are fixedly mounted on the bottom of the drill body 10 , and the plurality of sharp corners 17 are arranged at equal intervals along the circumference of the drill body 10 .

[0034] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from all points of view, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that come within the meaning and range of equivalents of the claims be included in the present invention.

[0035] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A bottom-inserting drill for monitoring stratum settlement, comprising a drill body, characterized in that: A connecting hole is provided at the top of the drill body, the upper part of the connecting hole is a threaded section, the lower part of the connecting hole is a connecting section, a guide hole is provided on the inner wall of the connecting section, the guide hole is connected to the outer peripheral surface of the drill body through a through hole, a plug is provided in the guide hole, the plug is in sliding contact with the inner wall of the guide hole, a drill insert petal is fixedly mounted on the plug, the drill insert petal is in sliding contact with the inner wall of the through hole.

2. The bottom-inserting drill for layered marker for monitoring stratum subsidence according to claim 1 is characterized by: A first guide surface extending inwardly and tilted outwardly is formed on the inner end surface of the expansion plug; An accommodating groove is provided on the inner wall of the guide hole, a limiting block and a spring are provided in the accommodating groove, the limiting block is in sliding contact with the inner wall of the accommodating groove, a second guide surface adapted to the first guide surface is formed on the limiting block, the first end of the spring is fixedly connected to the inner wall of the accommodating groove, and the second end of the spring is fixedly connected to the limiting block.

3. The bottom-inserting drill for layered marker for monitoring stratum subsidence according to claim 1 is characterized by: A spike portion is formed on the outer end surface of the inserting drill segment.

4. The bottom-inserting drill for layered marker for monitoring stratum subsidence according to claim 1 is characterized by: A separation ring is fixedly mounted on the inner wall of the connecting hole, and the separation ring is located between the threaded section and the connecting section.

5. The bottom-inserting drill for layered marker for monitoring stratum subsidence according to claim 1 is characterized by: The number of the connecting holes is four, and the four connecting holes are arranged at equal intervals along the circumference of the drill body.

6. The bottom-inserting drill for layered marker for monitoring stratum subsidence according to claim 1 is characterized by: A plurality of sharp corners are fixedly mounted on the bottom of the drill body, and the plurality of sharp corners are arranged at equal intervals along the circumference of the drill body.

Images