Soil radon gas continuous collection device

Abstract

The utility model discloses a continuous soil radon gas collecting device which comprises a shell, an air pressure balancing unit, an air extracting mechanism, a control box and a ground inserting pipe. According to the continuous soil radon gas collecting device, the gas extracting mechanism is used for extracting gas, the gas pressure balancing unit balances the gas pressure of the gas extracting mechanism, the gas pressure at the outer long-strip-shaped hole in the lower side of the ground inserting pipe is balanced, soil sucked into the ground inserting pipe is effectively reduced, and the outer long-strip-shaped hole is large in hole opening, not prone to being blocked and free of being frequently extracted for cleaning; radon gas can be continuously collected; the shell and the top cover are utilized to enable the shell to be opened, so that components in the shell can be conveniently maintained; the controller communicates with a remote control center through the wireless communication module so as to receive a control signal sent by the remote control center.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of gas collection devices, especially a kind of soil radon continuous collection device. BACKGROUND

[0002] Soil radon measurement is a uranium ore prospecting method widely used in China since 1950s, which has the characteristics of economy, speediness and strong comprehensive information response. It has good guiding effect for the exploration of sandstone-type uranium deposits with shallow burial depth and poorly developed roof water-resisting layer. The sampling rod is inserted into the fresh soil to 60 cm, and the gas in the soil is extracted by the suction cylinder. The radon is separated and detected. However, the traditional radon detection device is easy to adsorb sand into the inside of the sampling rod when extracting and detecting the gas in the soil. The accumulation of sand will affect the subsequent radon adsorption. The entry of sand will also cause the blockage and wear of the sampling rod, affecting the subsequent use. There are radon detection devices in the prior art that can reduce the amount of soil entering, such as patent No. CN202221113241.3, but the air inlet is still in a state of high negative pressure during gas collection, which will cause soil to block the air inlet and affect the continuous collection of radon. Therefore, a soil radon continuous collection device is proposed. SUMMARY

[0003] The utility model discloses a soil radon continuous collection device, which can balance the air pressure at the air extraction position and meet the demand of continuous radon collection.

[0004] Technical scheme: The soil radon continuous collection device provided by the utility model comprises an outer shell, an air pressure balancing unit, an air extraction mechanism, a control box and a ground insertion pipe. The upper end of the ground insertion pipe extends into the outer shell. A spiral blade is arranged on the lower side of the ground insertion pipe. An outer long hole and a spiral blade are arranged on the lower side of the ground insertion pipe. The air pressure balancing unit is used to balance the air pressure of the air extraction mechanism. The control box is installed in the outer shell. A controller, a wireless communication module and a power supply powered by a power supply module are arranged in the control box. The air pressure balancing unit and the air extraction mechanism are controlled by the controller.

[0005] Further, a flow guide cover is fixed at the bottom edge of the outer shell.

[0006] Further, an outer thread is arranged on the insertion side of the ground insertion pipe. A pressing nut is threadedly coupled to the ground insertion pipe for pressing on the inner bottom surface of the outer shell.

[0007] Further, the air extraction mechanism comprises an air extraction pump, a filter box, a plug-in pipe and an air extraction plug pipe; the plug-in pipe is plugged on the ground insertion pipe, the upper end is closed and extends into the shell; an inner long hole is arranged on the lower side of the plug-in pipe; the air extraction plug pipe is installed on the upper end of the plug-in pipe in a penetrating mode; the air extraction pump and the filter box are both installed in the shell; the filter box is connected in series between the air extraction plug pipe and the air extraction pump; the air extraction pump is electrically connected with the controller through the air pump driving circuit, and the air outlet extends out of the shell.

[0008] Further, the air pressure balancing unit comprises an air supply plug pipe, an air inlet elbow and an electromagnetic valve; the air supply plug pipe is installed on the upper end of the plug-in pipe in a penetrating mode; one end of the air inlet elbow extends into the shell, and an air supply filter pipe is fixed on the other end of the air inlet elbow; the electromagnetic valve is connected in series between the extending end of the air inlet elbow and the air supply plug pipe, and is electrically connected with the controller.

[0009] Further, the air extraction plug pipe and the air supply plug pipe are both provided with a limiting ring for pressing on the upper end surface of the plug-in pipe.

[0010] Further, a limiting seat is arranged on the upper end of the ground insertion pipe; a screwing slot and a working slot are arranged on the limiting seat; a limiting strip is arranged on the upper side of the plug-in pipe and buckled on the screwing slot or the working slot.

[0011] Compared with the prior art, the utility model has the advantages that: air is extracted by the air extraction mechanism, the air pressure balancing unit balances the air pressure of the air extraction mechanism, the air pressure at the outer long hole on the lower side of the ground insertion pipe is balanced, the soil sucked into the ground insertion pipe is effectively reduced, the hole of the outer long hole is large and not easy to be blocked, the ground insertion pipe does not need to be pulled out for cleaning frequently, and the radon gas can be continuously collected; the shell can be opened by the shell and the top cover, so that the components in the shell can be maintained; the controller communicates with the remote control center through the wireless communication module, so as to receive the control signal sent by the remote control center. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the front view of the utility model;

[0013] Figure 2 It is the sectional view of the shell of the utility model;

[0014] Figure 3 It is the component view of the plug-in pipe of the utility model;

[0015] Figure 4 It is the sectional view of the plug-in pipe of the utility model;

[0016] Figure 5 It is the circuit structure schematic view of the utility model;

[0017] In the diagram: 1. Housing; 2. Top cover; 3. Draft shield; 4. Shield; 5. Sloping surface; 6. Solenoid valve; 7. Air supply hose; 8. Air extraction hose; 9. Insert tube; 10. Fastening bolt; 11. Limiting strip; 12. Air extraction insert tube; 13. Filter tube; 14. Air supply insert tube; 15. Inner elongated hole; 16. Limiting ring; 17. Limiting seat; 18. Tightening slot; 19. Working slot; 20. Filter box; 21. Suction pump; 22. Air inlet bend; 23. Grounding pipe; 24. Press nut; 25. Outer elongated hole; 26. Spiral blade; 27. Air supply filter tube; 28. Control box. Detailed Implementation

[0018] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings, but the protection scope of this utility model is not limited to the described embodiments.

[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 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. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0020] In the description of this utility model, it should be understood that the terms "left", "right", "front", "back", "up", "down", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0021] Example 1:

[0022] like Figures 1-5 As shown, the soil radon gas continuous collection device provided by this utility model includes: a shell, a pressure balancing unit, an air extraction mechanism, a control box 28, and a ground insertion pipe 23; the shell includes a housing 1 and a top cover 2; the top cover 2 is used to cover the top opening of the housing 1;

[0023] The upper end of the ground insertion pipe 23 penetrates the bottom of the shell 1 and extends into the shell 1, and the lower end is provided with a pointed end. A helical blade 26 is arranged on the lower side of the ground insertion pipe 23 and is used to screw into the ground. An outer long hole 25 is vertically arranged on the lower side of the ground insertion pipe 23. The air suction mechanism is used to suck air through the ground insertion pipe 23 and output. The air pressure balancing unit is installed on the shell 1 and is used to balance the air pressure of the air suction mechanism. The control box 28 is installed in the shell 1. The controller, wireless communication module, and power supply are arranged in the control box 28 and are powered by the power supply module. The air pressure balancing unit and the air suction mechanism are controlled by the controller.

[0024] The air suction mechanism is used to suck air, and the air pressure balancing unit balances the air pressure of the air suction mechanism, so that the air pressure at the outer long hole 25 on the lower side of the ground insertion pipe 23 is balanced, effectively reducing the soil sucked into the ground insertion pipe 23, and the hole of the outer long hole 25 is large and not easy to be blocked, so that it is not necessary to frequently pull out for cleaning, and it is suitable for continuous collection of radon gas. The shell can be opened by the shell 1 and the top cover 2, which is convenient for maintaining the components in the shell. The controller communicates with the remote control center through the wireless communication module, so as to receive the control signal sent by the remote control center.

[0025] Further, the flow guide cover 3 is fixed at the bottom edge of the shell 1, and the diameter of the lower edge of the flow guide cover 3 is greater than that of the upper edge. The structure of the flow guide cover 3 with a wide lower part and a narrow upper part can guide the water flow and reduce the amount of water penetrating into the ground insertion pipe 23.

[0026] Further, an outer thread is arranged on the outer wall of the insertion side of the ground insertion pipe 23. The pressing nut 24 is threadedly screwed on the outer thread segment of the ground insertion pipe 23. The pressing nut 24 is used to press on the inner bottom surface of the shell 1.

[0027] The pressing nut 24 and the ground insertion pipe 23 are used to press the shell 1, so that the shell 1 is pressed on the ground, and the insertion stability of the collection device is improved.

[0028] Further, the air suction mechanism includes a suction air pump 21, a filter box 20, an insertion pipe 9, and an air suction insertion pipe 12.

[0029] The lower end of the insertion pipe 9 is inserted into the ground insertion pipe 23, and the upper end is closed and extends into the shell 1; a vertical inner long slot 15 is arranged on the lower side of the insertion pipe 9, and the inner long slot 15 is used for communication with an outer long slot 25; the air suction insertion pipe 12 is installed in a penetrating mode on the upper end of the insertion pipe 9; the air suction pump 21 and the filter box 20 are both installed in the shell 1; the air inlet of the filter box 20 is connected to the upper end of the air suction insertion pipe 12 through the air suction hose 8; the filter pipe 13 is connected to the lower end of the air suction insertion pipe 12; the air outlet of the filter box 20 is connected to the air inlet of the air suction pump 21, and the air outlet of the air suction pump 21 extends out of the shell 1; the air suction pump 21 is electrically connected to the controller through the air pump driving circuit.

[0030] The air suction pump 21 is used to suck air under the control of the controller, and the air enters the air suction pump 21 in sequence through the outer long slot 25, the inner long slot 15, the filter pipe 13, the air suction insertion pipe 12, the air suction hose 8 and the filter box 20, and is output by the air suction pump 21, so as to realize the collection of underground gas; the filter pipe 13 is used to achieve a preliminary filtering effect when sucking air, so as to prevent large-particle impurities such as soil or sundries from entering the air suction insertion pipe 12, and the filter box 20 is used to achieve a secondary filtering effect, so as to further prevent small-particle impurities such as water and dust from entering the air suction pump 21.

[0031] Further, the air pressure balancing unit comprises an air supply insertion pipe 14, an air inlet elbow pipe 22 and an electromagnetic valve 6; the air supply insertion pipe 14 is installed in a penetrating mode on the upper end of the insertion pipe 9, and the lower end extends to the lower side of the insertion pipe 9; one end of the air inlet elbow pipe 22 is fixed in a penetrating mode on the vertical side wall of the shell 1, and the other end is located outside the shell 1 and has a downward pipe opening; the electromagnetic valve 6 is connected in a side opening mode to the penetrating end of the air inlet elbow pipe 22, and the other side opening is connected in a opposite mode to the upper end of the air supply insertion pipe 14 through the air supply hose 7, and is electrically connected to the controller through the electric control switch; the air supply filter pipe 27 is fixed on the lower side pipe opening of the air inlet elbow pipe 22; the shielding cover 4 covering the air inlet elbow pipe 22 is installed on the outer side wall of the shell 1, the air supply filter pipe 27 is located in the shielding cover 4, an air inlet opening is arranged on the lower side of the shielding cover 4, and the top surface of the shielding cover 4 is arranged as an inclined surface 5.

[0032] When the air suction pump 21 is started to suck air, the electromagnetic valve 6 is turned on under the control of the controller, and the air reaches the lower side of the insertion pipe 9 in sequence through the air supply filter pipe 27, the air inlet elbow pipe 22, the electromagnetic valve 6, the air supply hose 7 and the air supply insertion pipe 14, so as to balance the air pressure at the outer long slot 25 and the inner long slot 15, prevent a large amount of soil from entering, and form an air flow between the lower end of the air supply insertion pipe 14 and the lower end of the air suction insertion pipe 12, so as to bring out the air in the soil and improve the air collection efficiency.

[0033] Further, a limiting ring 16 is arranged on the upper side of the air suction pipe 12 and the air supply pipe 14; the limiting ring 16 is used to press on the upper end surface of the plug-in pipe 9; the fastening bolt 10 is screwed on the plug-in pipe 9 and used to press on the air suction pipe 12 and the air supply pipe 14.

[0034] The limiting ring 16 plays a role of plug-in limiting, and the limiting ring 16 pressing on the upper end surface of the plug-in pipe 9 can play a certain sealing effect; the air suction pipe 12 and the air supply pipe 14 are positioned by the fastening bolt 10, so that the air suction pipe 12 and the air supply pipe 14 are detachably installed, which is convenient for maintenance or replacement.

[0035] Further, a limiting seat 17 is arranged on the upper end of the ground insertion pipe 23; two screwing notches 18 and two working notches 19 are arranged on the upper side of the limiting seat 17, the two screwing notches 18 are corresponding in position, and the two working notches 19 are corresponding in position; the vertical groove depth of the screwing notch 18 is greater than that of the working notch 19; two limiting strips 11 are arranged on the upper side of the plug-in pipe 9; the two limiting strips 11 are used to buckle on the two working notches 19 or the two screwing notches 18 at the same time; when the limiting strip 11 buckles on the screwing notch 18, the inner long strip hole 15 is not communicated with the outer long strip hole 25, and the lower end of the plug-in pipe 9 presses on the inner bottom surface of the ground insertion pipe 23; when the limiting strip 11 buckles on the working notch 19, the inner long strip hole 15 is communicated with the outer long strip hole 25; the vertical hole walls on both sides of the outer long strip hole 25 are arranged as inclined surfaces, so that the inner hole of the outer long strip hole 25 is smaller than the outer hole.

[0036] The buckling of the limiting strip 11 on the working notch 19 and the screwing notch 18 on the limiting seat 17 can make the plug-in pipe 9 play different roles; when the limiting strip 11 buckles on the screwing notch 18, screwing the limiting strip 11 can make the limiting seat 17 drive the ground insertion pipe 23 to rotate, the lower end of the plug-in pipe 9 presses on the inner bottom surface of the ground insertion pipe 23, the inner long strip hole 15 is not communicated with the outer long strip hole 25, and both can effectively reduce the soil entering the ground insertion pipe 23 during rotation, and the hole walls on both sides of the outer long strip hole 25 are inclined surfaces, which further reduces the entry of soil; during work, the plug-in pipe 9 is adjusted so that the limiting strip 11 buckles on the working notch 19, the inner long strip hole 15 is communicated with the outer long strip hole 25, and the air suction mechanism is convenient for air suction.

[0037] The controller uses an existing single-chip microcomputer control module, such as an MCS-51 single-chip microcomputer; the wireless communication module uses an existing wireless communication module; the power supply uses an existing power supply, such as a storage battery; the power supply module uses an existing power supply module; the suction air pump 21 uses an existing air pump, and the air pump driving circuit uses a corresponding air pump control circuit; the electromagnetic valve 6 uses an existing electromagnetic air valve, and the electric control switch uses a switching circuit composed of a triode (such as S8050) or a MOSFET tube;

[0038] When the soil radon continuous collection device is installed and used, first, the top cover 2 is opened, the two limiting strips 11 on the plug-in pipe 9 are buckled on the two screwing slot openings 18, then the two limiting strips 11 are screwed, the limiting strip 11 drives the ground insertion pipe 23 to rotate through the limiting seat 17, the tip of the ground insertion pipe 23 and the helical blade 26 break the soil and extend into the ground, then the pressing nut 24 is tightened to press the flow guide cover 3 on the lower edge of the shell 1 on the ground or into the ground, then the plug-in pipe 9 is adjusted to buckle the two limiting strips 11 on the two working slot openings 19, at this time, the inner long slot hole 15 and the outer long slot hole 25 are in communication, after the adjustment is completed, the gas supply hose 7 and the air suction hose 8 are respectively butt-jointed on the gas supply insertion pipe 14 and the air suction insertion pipe 12, and the air outlet of the suction air pump 21 is used to butt-joint the radon analyzer; after the controller receives the instruction sent by the remote control center through the wireless communication module, first, the electric control switch is controlled to be closed, the power supply module and the power supply supply power to the electromagnetic valve 6, the electromagnetic valve 6 is opened, then the air pump driving circuit drives the suction air pump 21 to operate for air suction, after continuous air suction for a period of time, the controller controls the suction air pump 21 to stop operating, finally, the controller controls the electric control switch to be opened, and the electromagnetic valve 6 is closed.

[0039] As described above, although the utility model has been shown and described with reference to specific preferred embodiments, it should not be construed as a limitation on the utility model itself. Various changes can be made to the form and details thereof without departing from the spirit and scope of the utility model defined in the appended claims.

Claims

1. A soil radon continuous collection device, characterized by: The device comprises a shell, a gas pressure balancing unit, a gas extraction mechanism, a control box (28) and a ground insertion pipe (23); the upper end of the ground insertion pipe (23) extends into the shell; a long external slot (25) and a spiral blade (26) are arranged on the lower side of the ground insertion pipe (23); the gas extraction mechanism extracts and outputs through the ground insertion pipe (23); the gas pressure balancing unit is used for balancing the gas pressure of the gas extraction mechanism; the control box (28) is installed in the shell; a controller, a wireless communication module and a power supply powered by a power supply module are arranged in the control box (28); the gas pressure balancing unit and the gas extraction mechanism are controlled by the controller.

2. The apparatus of claim 1, wherein: A flow guide cover (3) is fixed at the bottom edge of the shell.

3. The apparatus of claim 1, wherein: An external thread is arranged on the extending side of the ground insertion pipe (23); a pressing nut (24) is screwed on the ground insertion pipe (23) and is used for pressing on the inner bottom surface of the shell.

4. The apparatus of claim 1, wherein: The gas extraction mechanism comprises a suction air pump (21), a filter box (20), a plug-in pipe (9) and a gas extraction insertion pipe (12); the plug-in pipe (9) is plugged into the ground insertion pipe (23) and has an upper end closed and extending into the shell (1); a long internal slot (15) is arranged on the lower side of the plug-in pipe (9); the gas extraction insertion pipe (12) is installed in a penetrating manner on the upper end of the plug-in pipe (9); the suction air pump (21) and the filter box (20) are both installed in the shell (1); the filter box (20) is connected in series between the gas extraction insertion pipe (12) and the suction air pump (21); the suction air pump (21) is electrically connected with the controller through an air pump driving circuit, and the air outlet extends out of the shell (1).

5. A soil radon continuous extraction apparatus according to claim 4, characterised in that: The gas pressure balancing unit comprises a gas supply insertion pipe (14), an air inlet elbow (22) and an electromagnetic valve (6); the gas supply insertion pipe (14) is installed in a penetrating manner on the upper end of the plug-in pipe (9); one end of the air inlet elbow (22) extends into the shell (1), and a gas supply filter pipe (27) is fixed on the other end of the air inlet elbow (22); the electromagnetic valve (6) is connected in series between the extending end of the air inlet elbow (22) and the gas supply insertion pipe (14) and is electrically connected with the controller.

6. A soil radon continuous extraction apparatus according to claim 5, characterised in that: Limiting rings (16) for pressing on the upper end surface of the plug-in pipe (9) are arranged on the gas extraction insertion pipe (12) and the gas supply insertion pipe (14).

7. The apparatus of claim 4, wherein: A limiting seat (17) is arranged on the upper end of the ground insertion pipe (23); a screwing slot (18) and a working slot (19) are arranged on the limiting seat (17); a limiting strip (11) is arranged on the upper side of the plug-in pipe (9) and buckles on the screwing slot (18) or the working slot (19); when the limiting strip (11) buckles on the working slot (19) or the screwing slot (18), the long internal slot (15) is in communication or not in communication with the long external slot (25).

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