Segmented drill bit type soil gas collector
Through the threaded connection design and sealing ring structure of the rotary rod and drill bit of the branch drill bit soil gas collector, the complexity and low purity of traditional soil gas collection methods are solved, and efficient and high-purity collection of deep soil gases is achieved.
Patent Information
- Application Number
- CN202421865407.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-03
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-03
AI Technical Summary
Traditional soil gas collection methods are complex in operation, low in efficiency, limited depth and low gas purity, making it difficult to achieve efficient and high-purity collection of deep soil gases.
The branch drill bit-type soil gas collector is adopted, and the threaded connection between the rotary rod and the drill bit is designed to form an adjustable sampling space. Combined with the sealing ring and flexible stop, the direct collection of gas during the drilling process is achieved, external air interference is reduced, and collection efficiency and purity are improved.
The collection process is simplified, the collection efficiency is improved, the high purity of the gas sample is ensured, the collection needs are adapted to different depths, the soil drilling collapses, and the operation convenience and collection efficiency are improved.
Smart Images
Figure CN223091616U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of soil gas collection, and more specifically, to a sectional bit type soil gas collector. Background Art
[0002] In the field of soil gas collection, traditional collection methods usually involve first using a motor to drive a drill bit to drill deep into the soil, and then inserting a gas pipe into the drilled soil hole to collect gas samples. This method is not only cumbersome, but also the exploration depth is limited by the length of the gas pipe, and it is often impossible to reach deeper soil layers to collect gas samples. In addition, this method also has the following problems: 1. Complex operation: It requires step-by-step operations, first drilling and then inserting the gas pipe, increasing the complexity and time consumption of the operation. 2. Depth limitation: The length of the gas pipe determines the maximum depth that can be explored, restricting the collection of deep soil gas. 3. Low gas purity: During the collection process, the gas pipe may introduce external air, resulting in low purity of the collected gas samples and affecting the accuracy of subsequent analysis. 4. Low efficiency: Traditional collection methods require multiple operations to complete one collection task, reducing work efficiency. Summary of the Utility Model
[0003] The utility model provides a sectional bit type soil gas collector, which solves the problems of complex operation, low efficiency, many limiting factors and low purity existing in the traditional collection methods in the related art.
[0004] The technical solution of the utility model is as follows: A sectional bit type soil gas collector, comprising:
[0005] A rotating rod, one end of the rotating rod has a connecting part, and the connecting part has a threaded part;
[0006] A drill bit, the drill bit has a notch, and the notch has an internal thread, and the threaded part is threadedly connected to the notch;
[0007] After the rotating rod rotates, the connecting part approaches or moves away from the drill bit. After the connecting part moves away from the drill bit, a sampling space is formed between the connecting part and the drill bit, and the sampling space is used to accommodate the gas in the soil.
[0008] Optionally, the rotating rod has air holes, and the air holes communicate the outside of the rotating rod and the sampling space.
[0009] Optionally, the air hole has one air outlet passage and two air inlet passages, and the two air inlet passages are arranged at intervals on the connecting part. The sectional bit type soil gas collector further comprises:
[0010] A three-way valve, which is arranged at the intersection of the air outlet passage and the two air inlet passages.
[0011] Optionally, it further includes:
[0012] A sealing ring, which is arranged on the rotating rod and above the connecting part;
[0013] A flexible baffle, which is swingably arranged on the sealing ring and is used to block the soil drilling hole after swinging;
[0014] A flexible protective layer, which is arranged on the periphery of the flexible baffle.
[0015] Optionally, it further includes:
[0016] A plurality of connecting rods, which are swingably arranged on the sealing ring and are arranged in a circumferential array, and the flexible baffle is arranged on the upper part of the connecting rods.
[0017] Optionally, the sealing ring is rotatably arranged on the rotating rod, and it further includes:
[0018] A connecting ring, which is arranged on the upper end face of the drill bit;
[0019] A connecting piece, one end of which is hinged to the connecting ring and the other end is hinged to the connecting rod.
[0020] Optionally, it further includes:
[0021] An elastic member, one end of which is arranged on the sealing ring and the other end is arranged at one end of the connecting rod, and is used to provide an elastic force for the connecting rod to swing close to the middle of the sealing ring.
[0022] Optionally, the sealing ring has a sealing part, and the sealing parts are arranged at intervals on the upper peripheral side of the sealing ring, and the sealing part and the flexible baffle are jointly used to block the soil drilling holes on the circumferential outer side of the sealing ring.
[0023] Optionally, it further includes:
[0024] A rotation driving member, which is used to drive the rotating rod to rotate.
[0025] The working principle and beneficial effects of the present utility model are:
[0026] In the present utility model, the rotating rod is threadedly connected to the notch of the drill bit through the threaded portion at one end thereof. When the rotating rod rotates, the connecting portion can approach or move away from the drill bit. It can achieve the driving and connection of the drill bit, and at the same time, the distance between the connecting portion and the drill bit can be adjusted as needed to form a sampling space. Through the threaded connection design of the rotating rod and the drill bit, the size of the sampling space can be adjusted as needed to adapt to the collection requirements at different depths. Through the design of the sampling space, gas samples can be directly collected during the drilling process, simplifying the collection process and improving the collection efficiency. The drill bit can be made of high-strength alloy steel or cemented carbide to ensure the durability and drilling ability of the drill bit. By directly collecting gas during the drilling process, the interference of external air is reduced, and the purity of the collected gas samples is improved. Through the threaded connection design of the rotating rod and the drill bit, the size of the sampling space can be adjusted as needed to adapt to the collection requirements at different depths. In order to prevent the collapse of the hole wall of the soil drilling, the height of the sampling space can be controlled between 0.5 cm and 1 cm. Brief Description of the Drawings
[0027] The following will further illustrate the above characteristics, technical features, advantages and their implementation manners of the present utility model in a clear and understandable manner in combination with the drawings of the preferred embodiments.
[0028] Figure 1 It is a schematic internal sectional structure view of the present utility model;
[0029] Figure 2 It is a schematic partial structure view of the present utility model;
[0030] Figure 3 It is an exploded schematic partial structure view of the present utility model;
[0031] Figure 4 It is a schematic structure view of the connecting rod and the elastic member of the present utility model.
[0032] In the figure: 1, rotating rod; 101, connecting portion; 102, air hole; 103, air outlet passage; 104, air inlet passage; 2, drill bit; 201, notch; 3, sampling space; 4, three-way valve; 5, sealing ring; 501, sealing portion; 6, flexible stopper; 7, flexible protective layer; 8, connecting rod; 9, connecting ring; 10, connecting member; 11, elastic member; 12, rotation driving member. Detailed Embodiment
[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the specific embodiments of the present utility model will be described below with reference to the drawings. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts, and other embodiments can also be obtained.
[0034] To simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, to simplify the drawings for easy understanding, for components with the same structure or function in some figures, only one of them is schematically shown, or only one of them is labeled. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".
[0035] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0036] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.
[0037] Referring to Figures 1 to 4 , as the first embodiment of the present utility model, a sectional drill bit type soil gas sampler is proposed, which includes: a rotating rod 1, one end of the rotating rod 1 has a connecting portion 101, and the connecting portion 101 has a threaded portion; a drill bit 2, the drill bit 2 has a notch 201, and the notch 201 has an internal thread, and the threaded portion is threadedly connected to the notch 201; after the rotating rod 1 rotates, the connecting portion 101 approaches or moves away from the drill bit 2, and after the connecting portion 101 moves away from the drill bit 2, a sampling space 3 is formed between the connecting portion 101 and the drill bit 2, and the sampling space 3 is used to accommodate the gas in the soil.
[0038] In this embodiment, the rotating rod 1 is threadedly connected to the notch 201 of the drill bit 2 through the threaded portion at one end thereof. When the rotating rod 1 rotates, the connecting portion 101 can approach or move away from the drill bit 2. It can realize the driving and connection of the drill bit 2, and at the same time, the distance between the connecting portion 101 and the drill bit 2 can be adjusted as needed to form a sampling space 3. Through the threaded connection design of the rotating rod 1 and the drill bit 2, the size of the sampling space 3 can be adjusted as needed to adapt to the collection requirements at different depths. Through the design of the sampling space 3, gas samples can be directly collected during the drilling process, simplifying the collection process and improving the collection efficiency. The drill bit 2 can be made of high-strength alloy steel or cemented carbide to ensure the durability and drilling ability of the drill bit 2. By directly collecting gas during the drilling process, the interference of external air is reduced, and the purity of the collected gas samples is improved. Through the threaded connection design of the rotating rod 1 and the drill bit 2, the size of the sampling space 3 can be adjusted as needed to adapt to the collection requirements at different depths. In order to prevent the collapse of the hole wall of the soil drilling, the height of the sampling space 3 can be controlled between 0.5 cm and 1 cm.
[0039] Further, the rotating rod 1 has air holes 102, and the air holes 102 communicate the outside of the rotating rod 1 and the sampling space 3; the air holes 102 have an air outlet passage 103 and two air inlet passages 104, and the two air inlet passages 104 are arranged at intervals on the connecting portion 101, and a three-way valve 4 is provided at the intersection of the air outlet passage 103 and the two air inlet passages 104.
[0040] In this embodiment, the air holes 102 are used to realize the inlet and outlet of gas. When the connecting portion 101 moves away from the drill bit 2, the gas in the sampling space 3 can enter the air outlet passage 103 through the two air inlet passages 104. The three-way valve 4 is used to control the gas flow direction, reducing the interference of external air and ensuring the purity and collection efficiency of the gas samples.
[0041] Further, it further includes: a sealing ring 5, the sealing ring 5 is arranged on the rotating rod 1 and is located above the connecting portion 101; a flexible baffle 6, the flexible baffle 6 is swingably arranged on the sealing ring 5, and the flexible baffle 6 is used to block the soil drilling after swinging; a flexible protective layer 7, the flexible protective layer 7 is arranged on the periphery of the flexible baffle 6.
[0042] In this embodiment, the sealing ring 5 can be made of elastic materials such as rubber or silica gel to ensure good sealing performance. The flexible baffle 6 is swingably arranged on the sealing ring 5, and the flexible baffle 6 can be made of flexible materials such as flexible plastic or rubber to ensure good flexibility and durability. The flexible baffle 6 is used to jointly block the soil drilling with the sealing ring 5 to prevent the gas above the sealing ring 5 from entering the sampling space 3 or the soil from collapsing into the sampling space 3, affecting the gas collection purity and the normal collection process. The flexible protective layer 7 is arranged on the periphery of the flexible baffle 6 and can be made of flexible materials such as flexible plastic or rubber, which functions to protect the flexible baffle 6 and prevent wear.
[0043] Further, it further includes: a plurality of connecting rods 8, the connecting rods 8 are swingably arranged on the sealing ring 5, and the plurality of connecting rods 8 are arranged in a circumferential arrangement, and a flexible baffle 6 is arranged on the upper part of the connecting rods 8; an elastic member 11, one end of the elastic member 11 is arranged on the sealing ring 5, and the other end is arranged at one end of the connecting rod 8, and is used to provide an elastic force for the connecting rod 8 to swing close to the middle of the sealing ring 5.
[0044] In this embodiment, the connecting rod 8 can be made of high-strength alloy steel or stainless steel to ensure the reliability and durability of the connection. One end of the connecting rod 8 is connected to the sealing ring 5, and the other end is connected to the flexible baffle 6. Through the elastic force provided by the elastic member 11, the connecting rod 8 can swing close to the middle of the sealing ring 5. Through the design of the connecting rod 8, the effective connection and swing of the flexible baffle 6 can be realized, ensuring that the flexible baffle 6 can adapt to different shapes of the soil drilling opening. The elastic member 11 can be made of materials such as spring steel or elastic rubber to ensure good elasticity and durability. Through the elastic force of the elastic member 11, the connecting rod 8 can swing close to the middle of the sealing ring 5, ensuring that the flexible baffle 6 is closely attached to the opening of the soil drilling, preventing soil particles or a large amount of upper gas from entering the sampling space 3, and improving the purity of the collected gas sample.
[0045] Further, the sealing ring 5 is rotatably arranged on the rotating rod 1, and further includes: a connecting ring 9, the connecting ring 9 is arranged on the upper end surface of the drill bit 2; a connecting member 10, one end of the connecting member 10 is hinged to the connecting ring 9, and the other end is hinged to the connecting rod 8.
[0046] In this embodiment, during the rotary drilling process of the drill bit 2, the sealing ring 5 is driven to rotate synchronously, and due to the connection of the connecting member 10, a certain height interval is maintained between the drill bit 2 and the sealing ring 5. After the connecting rod 8 swings close to the middle of the sealing ring 5 under the elastic force of the elastic member 11, the width or length of the flexible baffle 6 after following the swing is smaller than the diameter of the upper end surface of the conical drill bit 2, and the sealing ring 5 rotates relative to the rotating rod 1. Therefore, when the rotating rod 1 rotates in the reverse direction, the sealing ring 5 will not follow the rotating rod 1 to rotate. Therefore, the stability of the drill bit 2 in the soil is ensured. At the same time, the sealing ring 5 will rise synchronously with the rotating rod 1, the distance between the sealing ring 5 and the drill bit 2 increases, the connecting member 10 swings and overcomes the elastic force of the elastic member 11 to drive the connecting rod 8 to swing, and the flexible baffle 6 follows the swing and opens to block the soil drilling.
[0047] Further, the sealing ring 5 has a sealing portion 501, the sealing portions 501 are arranged at intervals on the upper circumferential side of the sealing ring 5, and the sealing portion 501 and the flexible baffle 6 are jointly used to block the soil drilling on the circumferential outer side of the sealing ring 5. A rotating driving member 12 is provided, and the rotating driving member 12 is used to drive the rotating rod 1 to rotate.
[0048] In this embodiment, the sealing ring 5 can be made of elastic materials such as rubber or silica gel to ensure good sealing performance. The flexible baffle 6 is swingably arranged on the sealing ring 5 and is used together with the sealing part 501 to block the soil borehole on the circumferential outer side of the sealing ring 5, preventing soil particles and upper-layer gas from entering the sampling space 3 and affecting the quality of the gas sample. The rotation driving member 12 can adopt power sources such as motors, hydraulic motors or pneumatic motors, which can realize the automatic drilling of the drill bit 2, improving the collection efficiency and operation convenience.
[0049] Through the design of the sealing ring 5, the outside air can be effectively isolated, improving the purity of the collected gas sample. Through the design of the flexible baffle 6, soil particles can be effectively prevented from entering the sampling space 3, further improving the purity of the collected gas sample. By using durable materials such as high-strength alloy steel or stainless steel, the durability of the entire sampler can be improved. Through the design of the connecting rod 8 and the elastic member 11, it can be ensured that the flexible baffle 6 can adapt to different soil borehole opening shapes, improving the purity of the collected gas sample. Through the design of the rotation driving member 12, the automatic drilling of the drill bit 2 can be realized, improving the operation convenience. Through the design of the ring member, the connecting ring 9 and the connecting member 10, the stability and flexibility of the drill bit 2 during the drilling process can be realized, improving the collection efficiency.
[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.
Claims
1. A sectional drill bit type soil gas collector, characterized in that, Comprising: A rotating rod (1), one end of the rotating rod (1) has a connecting portion (101), and the connecting portion (101) has a threaded portion; A drill bit (2), the drill bit (2) has a notch (201), the notch (201) has internal threads, and the threaded portion is threadedly connected to the notch (201); After the rotating rod (1) rotates, the connecting portion (101) approaches or moves away from the drill bit (2). After the connecting portion (101) moves away from the drill bit (2), a sampling space (3) is formed between the connecting portion (101) and the drill bit (2), and the sampling space (3) is used to accommodate the gas in the soil.
2. The soil gas collector with a segmented drill bit according to claim 1, characterized in that The rotating rod (1) has air holes (102), and the air holes (102) communicate the outside of the rotating rod (1) and the sampling space (3).
3. The soil gas collector with a segmented drill bit according to claim 2, characterized in that, The air holes (102) have an air outlet passage (103) and two air inlet passages (104). The two air inlet passages (104) are arranged at intervals on the connecting portion (101), and further comprising: A three-way valve (4), and the three-way valve (4) is arranged at the intersection of the air outlet passage (103) and the two air inlet passages (104).
4. The soil gas collector with a segmented drill bit according to claim 1, characterized in that, Further comprising: A sealing ring (5), and the sealing ring (5) is arranged on the rotating rod (1) and is located above the connecting portion (101); A flexible baffle (6), and the flexible baffle (6) is swingably arranged on the sealing ring (5), and after the flexible baffle (6) swings, it is used to block the soil drilling; A flexible protective layer (7), and the flexible protective layer (7) is arranged on the periphery of the flexible baffle (6).
5. The soil gas collector with a segmented drill bit according to claim 4, characterized in that, Further comprising: A plurality of connecting rods (8), and the connecting rods (8) are swingably arranged on the sealing ring (5), and the plurality of connecting rods (8) are arranged in a circumferential arrangement, and the flexible baffle (6) is arranged on the upper part of the connecting rods (8).
6. The soil gas collector with a segmented drill bit according to claim 5, characterized in that, The sealing ring (5) is rotatably arranged on the rotating rod (1), and further comprising: A connecting ring (9), and the connecting ring (9) is arranged on the upper end surface of the drill bit (2); A connecting member (10), one end of the connecting member (10) is hinged to the connecting ring (9), and the other end is hinged to the connecting rod (8).
7. The soil gas collector with a segmented drill bit according to claim 5, characterized in that, Further comprising: An elastic member (11), one end of the elastic member (11) is arranged on the sealing ring (5), and the other end is arranged at one end of the connecting rod (8), and is used to provide an elastic force for the connecting rod (8) to swing close to the middle of the sealing ring (5).
8. The soil gas collector with a segmented drill bit according to claim 4, characterized in that, The sealing ring (5) has a sealing portion (501), and the sealing portions (501) are arranged at intervals on the upper peripheral side of the sealing ring (5), and the sealing portion (501) and the flexible baffle (6) are jointly used to block the soil drilling on the circumferential outer side of the sealing ring (5).
9. The soil gas collector with a segmented drill bit according to claim 1, characterized in that Further comprising: A rotation driving member (12), and the rotation driving member (12) is used to drive the rotating rod (1) to rotate.