Underground water pollution depth layered extraction device

Abstract

The utility model discloses an underground water pollution depth layering extraction device which comprises an extraction device main body, a liquid level sensor is installed on the outer wall of the extraction device main body, the bottom of the extraction device main body is communicated with a water inlet, a sampling device is arranged on the inner wall of the extraction device main body, and the sampling device comprises a plurality of rubber plugs, a water inlet and a water outlet, the two connecting rods are movably connected to the inner wall of the extraction device main body; and the multiple tension springs are detachably connected to the tops of the multiple rubber plugs correspondingly and detachably connected with the inner wall of the extraction device body. The utility model relates to the technical field of underground water sampling, in particular to an underground water pollution depth layered extraction device, which is characterized in that an extraction device main body is placed inside a monitoring cylinder, and underground water is sequentially extracted into a plurality of cavities of the extraction device main body through a sampling device; the condition that underground water in the pipeline interferes with later sampling does not exist in the pumping mode, and the detection precision of underground water of different depths cannot be affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to underground water sampling technical field, concretely is a kind of underground water pollution depth layered extraction device. BACKGROUND

[0002] It refers to the water in the rock void below ground, and in a narrow sense, it refers to the water in the saturated aquifer below the groundwater level; In the national standard "Hydrogeology Terms", groundwater refers to various forms of gravity water buried below the ground surface, and groundwater needs to use layered extraction device to judge the degree of current groundwater pollution, for example, the groundwater pollution accurate extraction device with the authorization announcement number "CN219511874U", its structure includes liquid pump, fixed pipe and fixed bottom plate, recess is opened in the left side of fixed bottom plate, fixed pipe bottom end is fixedly connected with telescopic pipe passing through the recess on fixed bottom plate, connecting sleeve ring is fixedly connected in the inside of telescopic pipe, limit rod is fixedly connected on the left and right sides of the upper end of connecting sleeve ring, limit rod is arranged in the inside of telescopic pipe, and stable rod is passed through the inside of limit rod, and stable rod is slidably connected with limit rod, stable rod is fixedly connected on the left and right sides of the bottom end of connecting sleeve ring, and stable rod is slidably arranged in the left and right sides of the upper end of another connecting sleeve ring, the utility model can accurately extract according to the condition of underground sewage, and then the various liquid level layers of sewage are conveniently treated separately, and the effect of treating sewage is improved.

[0003] The current groundwater extraction device is used, the counterweight pipe head is placed in the inside of monitoring well together with telescopic pipe, after liquid level sensor detects current water level depth, water pump cooperates with telescopic pipe to extract water in the inside of monitoring well outward, so that the pollution condition of groundwater of different depths is accurately judged, and the treatment effect of sewage is improved.

[0004] The counterweight pipe head and telescopic pipe are put into the inside of monitoring well in the use process of traditional groundwater extraction device, after the position of counterweight pipe head is adjusted, water of different depths can be extracted, because the groundwater of last sampling depth is stored in the inside of telescopic pipe, when groundwater of deeper position is sampled, the groundwater stored in the inside of telescopic pipe interferes with groundwater of deeper position, and the detection accuracy of groundwater of different depths is influenced. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of prior art, the utility model provides a kind of underground water pollution depth layered extraction device, solve the problem that the counterweight pipe head and telescopic pipe are put into the inside of monitoring well in the use process of traditional groundwater extraction device, after the position of counterweight pipe head is adjusted, water of different depths can be extracted, because the groundwater of last sampling depth is stored in the inside of telescopic pipe, when groundwater of deeper position is sampled, the groundwater stored in the inside of telescopic pipe interferes with groundwater of deeper position, and the detection accuracy of groundwater of different depths is influenced.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a groundwater pollution depth stratification extraction device, comprising an extraction device body, a liquid level sensor installed on the outer wall of the extraction device body, a water inlet connected to the bottom of the extraction device body, and a sampling device provided on the inner wall of the extraction device body. The sampling device includes: multiple rubber plugs, all movably connected to the inner wall of the extraction device body; multiple tension springs, each detachably connected to the top of one of the rubber plugs and detachably connected to the inner wall of the extraction device body; multiple sliding rods, each fixedly connected to the top of one of the rubber plugs and movably connected to the inner wall of the extraction device body; and a drive unit installed inside the extraction device body. When the sliding rods are pushed to move the rubber plugs into the extraction device body, the detected water is drawn into the interior of the extraction device body, simultaneously stretching the tension springs.

[0007] Preferably, the driving unit includes: a housing, fixedly connected to the inner wall of the extraction device body; a servo motor, detachably connected to the outer wall of the housing; an inner convex plate, detachably connected to the output end of the servo motor, and rotatably connected to the inner wall of the housing via a bearing; multiple rollers, all abutting against the inner wall of the inner convex plate; multiple insertion rods, each rotatably connected to the inner wall of the multiple rollers via bearings, and movably connected to the inner wall of the housing, with the outer sides of the multiple insertion rods inserted into the inner walls of the multiple sliding rods; and multiple first springs, each detachably connected to the outer wall of the multiple insertion rods, and detachably connected to the inner wall of the housing; wherein, the servo motor, through the inner convex plate, presses the insertion rods on the rollers inward, causing the insertion rods to no longer insert into the sliding rods, while simultaneously compressing the first springs.

[0008] Preferably, a handle is rotatably connected to the outer wall of the main body of the extraction device, and a connecting pull ring is installed above the handle.

[0009] Preferably, the bottom of the extraction device body is provided with a buffer device, the buffer device including: two outer cylinders, both installed on the bottom sides of the extraction device body;

[0010] Two second springs are provided, each detachably connected to the inner wall of the outer cylinder; two sliding cylinders are provided, each movably connected to the inner wall of the two outer cylinders, and detachably connected to one end of each of the two second springs; a base plate is installed at the bottom of the two sliding cylinders; wherein, when the base plate is subjected to an external impact, the second springs inside the outer cylinder are compressed through the sliding cylinders.

[0011] Preferably, the inner walls of the plurality of water inlets are provided with a filtration device, the filtration device comprising: multiple filter plates, each respectively snapped onto the inner wall of the plurality of water inlets; and multiple bolts, each respectively snapped onto the inner wall of the plurality of filter plates and threadedly connected to the inner wall of the plurality of water inlets; wherein, after the filter plates are installed inside the water inlets, the bolts are turned to fix the filter plates inside the water inlets.

[0012] Beneficial effects

[0013] This invention provides a groundwater pollution depth stratification extraction device. It has the following advantages: When the extraction device body is placed inside the monitoring cylinder, the level sensor detects the current water level and stops the extraction device body from moving downwards. The sampling device then sequentially extracts groundwater into multiple cavities within the extraction device body. This extraction method eliminates the interference of groundwater inside the pipeline with subsequent sampling and does not affect the detection accuracy of groundwater at different depths.

[0014] Pulling the handle facilitates the movement of the main body of the extraction device. When the main body of the extraction device descends rapidly inside the monitoring well and there is no groundwater inside the monitoring well, the buffer device provides buffer protection for the main body of the extraction device to prevent damage from impact. The groundwater entering the inlet is filtered by the filtration device to prevent large impurities from clogging the inlet. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the planar section structure;

[0017] Figure 3 for Figure 2 A top-section structural diagram of the central drive unit;

[0018] Figure 4 for Figure 2 Schematic diagram of the connection structure between the outer cylinder, the second spring, and the slide cylinder;

[0019] Figure 5 for Figure 2 A schematic diagram of the connection structure of the middle housing, servo motor and inner convex plate.

[0020] In the diagram: 1. Main body of the extraction device; 2. Sampling device; 21. Rubber stopper; 22. Tension spring; 23. Slide rod; 24. Drive unit; 241. Housing; 242. Servo motor; 243. Inner convex plate; 244. Roller; 245. Insert rod; 246. First spring; 3. Handle; 4. Liquid level sensor; 5. Buffer device; 51. Outer cylinder; 52. Second spring; 53. Slide cylinder; 54. Base plate; 6. Water inlet; 7. Filter device; 71. Filter plate; 72. Bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0023] In the process of using traditional groundwater extraction devices, a counterweight pipe head and a telescopic pipe are inserted into the monitoring well. After the position of the counterweight pipe head is adjusted, water at different depths can be extracted. However, since the telescopic pipe contains groundwater from the previous sampling depth, when sampling groundwater at deeper locations, the groundwater stored inside the telescopic pipe interferes with the groundwater at those deeper locations, affecting the detection accuracy of groundwater at different depths.

[0024] In view of this, the present invention provides a groundwater pollution depth stratification extraction device. The extraction device body is placed inside the monitoring cylinder. After the liquid level sensor detects the current water level, the extraction device body stops moving downward. The sampling device sequentially extracts groundwater into multiple cavities of the extraction device body. This extraction method does not cause interference from groundwater inside the pipeline to subsequent sampling and will not affect the detection accuracy of groundwater at different depths.

[0025] Example 1: By Figures 1 to 5It is known that a groundwater pollution depth stratification extraction device includes an extraction device body 1, a liquid level sensor 4 installed on the outer wall of the extraction device body 1, a water inlet 6 connected to the bottom of the extraction device body 1, and a sampling device 2 provided on the inner wall of the extraction device body 1. The sampling device 2 includes: multiple rubber plugs 21, all movably connected to the inner wall of the extraction device body 1; multiple tension springs 22, each detachably connected to the top of multiple rubber plugs 21 and detachably connected to the inner wall of the extraction device body 1; multiple sliding rods 23, each fixedly connected to the top of multiple rubber plugs 21 and movably connected to the inner wall of the extraction device body 1; and a drive unit 24 installed inside the extraction device body 1. When the sliding rods 23 are pushed to move the rubber plugs 21 into the extraction device body 1, the detected water is drawn into the interior of the extraction device body 1, while simultaneously stretching the tension springs 22.

[0026] In the specific implementation process, it is worth noting that the liquid level sensor 4 is existing technology, and the model is not specifically limited, as long as it meets the usage requirements. Those skilled in the art should interpret it broadly to meet the technical features of this case. The sliding rod 23 drives the rubber plug 21 to adhere to the lower inner wall of the extraction device body 1. The sliding rod 23 is square and has a sealing treatment between it and the extraction device body 1. The specific method is not limited, as long as it meets the usage requirements. The outer wall of the rubber plug 21 has a sealing treatment between it and the extraction device body 1. The rubber plug 21 discharges the air inside the extraction device body 1 from the water inlet 6 to the outside. At the same time, the rubber plug 21 stretches the tension spring 22. The tension spring 22 and the rubber plug 21 can be replaced periodically according to the aging condition. During extraction, the friction between the rubber plug 21 and the extraction device body 1 can offset the elastic potential energy of the tension spring 22 and prevent it from repeatedly rebounding.

[0027] Furthermore, the drive unit 24 includes: a housing 241, fixedly connected to the inner wall of the extraction device body 1; a servo motor 242, detachably connected to the outer wall of the housing 241; an inner protrusion plate 243, detachably connected to the output end of the servo motor 242, and rotatably connected to the inner wall of the housing 241 via bearings; multiple rollers 244, all abutting against the inner wall of the inner protrusion plate 243; and multiple insertion rods 245, each rotatably connected to the inner wall of one of the multiple rollers 244 via bearings. All of them are movably connected to the inner wall of the housing 241, and the outer sides of the multiple insertion rods 245 are inserted into the inner walls of the multiple slide rods 23; multiple first springs 246 are provided, each detachably connected to the outer wall of the multiple insertion rods 245, and all are detachably connected to the inner wall of the housing 241; wherein, the servo motor 242 presses the insertion rods 245 on the roller 244 inward through the inner protrusion plate 243, the insertion rods 245 are no longer inserted into the slide rods 23, and at the same time the insertion rods 245 compress the first springs 246;

[0028] In the specific implementation process, it is worth noting that the model of the servo motor 242 is not specifically limited, as long as it meets the usage requirements. Those skilled in the art should interpret it broadly to meet the technical features of this case. The servo motor 242 drives the inner convex plate 243 to rotate. The inner convex plate 243 has protrusions processed inside. When the inner convex plate 243 rotates to the outer wall of the roller 244, the protrusions squeeze the current roller 244 to move inward. The current roller 244 compresses the first spring 246 through the insert rod 245. At the same time, the insert rod 245 is no longer inserted and fixed to the slide rod 23.

[0029] Furthermore, a handle 3 is rotatably connected to the outer wall of the main body 1 of the extraction device, and a connecting pull ring is installed above the handle 3;

[0030] In the specific implementation process, it is worth noting that the handle 3 makes it easy to lift the main body 1 of the extraction device and carry it. Furthermore, when the groundwater pollution depth stratification extraction device is inserted into the vertical shaft, it can be connected to the external cable using the connecting pull ring, which makes it easy to deploy.

[0031] Specifically, when using this groundwater pollution depth stratification extraction device, the operator pushes the slide bar 23 downwards. The slide bar 23 causes the rubber plug 21 to adhere to the inner wall of the extraction device body 1. At the same time, the rubber plug 21 stretches the tension spring 22. The first spring 246, which is in a compressed state, pushes the insertion rod 245 outwards. At this time, the insertion rod 245 is inserted into the inside of the slide bar 23, and the extraction device body 1 is inserted into the monitoring well. The servo motor 242, which is connected to the transmission line, is controlled by the external control panel. The servo motor 242 drives the inner convex plate 2... When the inner convex plate 243 rotates, the protruding part of the inner convex plate 243 presses the roller 244 to move inward. The roller 244 drives the insertion rod 245 to move inward. The insertion rod 245 compresses the first spring 246. At the same time, the insertion rod 245 is no longer fixed to the slide rod 23. The tension spring 22, which is in a stretched state, pulls the rubber plug 21 to move upward. The rubber plug 21, together with the water inlet 6, draws groundwater into the body of the extraction device 1. Each time the inner convex plate 243 rotates 120 degrees, it presses multiple rollers 244 in sequence, thereby opening the slide rod 23 inside the body of the extraction device 1 at different depths.

[0032] Example 2: From Figure 1 , 2As shown in section 4, the bottom of the extraction device body 1 is provided with a buffer device 5. The buffer device 5 includes: two outer cylinders 51, each installed on both sides of the bottom of the extraction device body 1; two second springs 52, each detachably connected to the inner wall of the outer cylinder 51; two sliding cylinders 53, each movably connected to the inner wall of the two outer cylinders 51, and detachably connected to one end of the two second springs 52; and a bottom plate 54, installed at the bottom of the two sliding cylinders 53. When the bottom plate 54 is subjected to external impact, the second springs 52 inside the outer cylinder 51 are compressed by the sliding cylinders 53.

[0033] In the specific implementation process, it is worth noting that a shock-absorbing damping device is provided between the slide cylinder 53 and the outer cylinder 51. After the bottom plate 54 is impacted, the bottom plate 54 compresses the second spring 52 inside the outer cylinder 51 through the slide cylinder 53, thereby reducing the impact on the bottom plate 54 and protecting the inside of the extraction device body 1. The second spring 52 can be replaced periodically according to the aging condition.

[0034] Specifically, based on the above embodiment 1, the main body 1 of the extraction device quickly falls into the monitoring well. When there is little groundwater inside the monitoring well, the bottom plate 54 of the buffer device 5 contacts the ground of the monitoring well. After the bottom plate 54 is impacted, it causes the slide cylinder 53 to retract into the outer cylinder 51. The slide cylinder 53 compresses the second spring 52. At this time, the second spring 52 deforms, which reduces the impact on the bottom plate 54 and protects the extraction device.

[0035] Example 3: From Figure 2 and 4 It is known that the inner walls of the multiple water inlets 6 are provided with a filter device 7, which includes: multiple filter plates 71, which are respectively snapped into the inner walls of the multiple water inlets 6; multiple bolts 72, which are respectively snapped into the inner walls of the multiple filter plates 71 and are threadedly connected to the inner walls of the multiple water inlets 6; wherein, after the filter plates 71 are installed inside the water inlets 6, the bolts 72 are turned to fix the filter plates 71 inside the water inlets 6.

[0036] In the specific implementation process, it is worth noting that the mesh size of the filter plate 71 is not specifically limited, as long as it meets the usage requirements. This application should be interpreted in a broad sense. The filter plate 71 is installed inside the water inlet 6, and the filter plate 71 is fixed inside the water inlet 6 by turning the bolt 72. The filter plate 71 filters the groundwater entering the water inlet 6.

[0037] Specifically, based on the above embodiment one, the filter plate 71 is fixed inside the water inlet 6 by twisting the bolt 72. When the groundwater passes through the filter plate 71, the filter plate 71 filters out larger particulate impurities in the groundwater to prevent excessive impurities from clogging the water inlet 6.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," 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 or an electrical connection; 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 explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for deep stratified extraction of groundwater pollution, comprising an extraction device body (1), characterized in that: The outer wall of the extraction device body (1) is provided with a liquid level sensor (4), the bottom of the extraction device body (1) is communicated with a water inlet (6), and the inner wall of the extraction device body (1) is provided with a sampling device (2). A plurality of rubber plugs (21) are movably connected to the inner wall of the extraction device body (1); A plurality of tension springs (22) are detachably connected to the top of the plurality of rubber plugs (21) and detachably connected to the inner wall of the extraction device body (1); A plurality of slide rods (23) are fixedly connected to the top of the plurality of rubber plugs (21) and movably connected to the inner wall of the extraction device body (1); A driving part (24) is installed inside the extraction device body (1); Wherein, the slide rod (23) drives the rubber plug (21) to move into the extraction device body (1), and the water is detected and pumped into the inside of the extraction device body (1), while the tension spring (22) is stretched.

2. The apparatus according to claim 1, wherein: The driving part (24) comprises: A housing (241) is fixedly connected to the inner wall of the extraction device body (1); A servo motor (242) is detachably connected to the outer wall of the housing (241); An inner protruding plate (243) is detachably connected to the output end of the servo motor (242) and rotatably connected to the inner wall of the housing (241) through a bearing; A plurality of rollers (244) are abuttingly connected to the inner wall of the inner protruding plate (243); A plurality of insertion rods (245) are rotatably connected to the inner wall of the plurality of rollers (244) through bearings and movably connected to the inner wall of the housing (241), and the outer sides of the plurality of insertion rods (245) are inserted into the inner wall of the plurality of slide rods (23); A plurality of first springs (246) are detachably connected to the outer wall of the plurality of insertion rods (245) and detachably connected to the inner wall of the housing (241); Wherein, the servo motor (242) moves the insertion rod (245) on the roller (244) inward through the inner protruding plate (243), the insertion rod (245) is no longer inserted into the slide rod (23), and the insertion rod (245) compresses the first spring (246).

3. The apparatus of claim 1, wherein: The outer wall of the extraction device body (1) is rotatably connected with a handle (3), and the upper portion of the handle (3) is provided with a connecting pull ring.

4. The apparatus of claim 1, wherein: The bottom of the extraction device body (1) is provided with a buffer device (5), and the buffer device (5) comprises: Two outer cylinders (51) are installed on both sides of the bottom of the extraction device body (1); Two second springs (52) are detachably connected to the inner wall of the outer cylinder (51); Two slide cylinders (53) are movably connected to the inner wall of the two outer cylinders (51) and detachably connected to one end of the two second springs (52); A bottom plate (54) is installed at the bottom of the two slide cylinders (53). The bottom plate (54) is compressed against the second spring (52) inside the outer cylinder (51) through the sliding cylinder (53) after being impacted by an external impact.

5. The apparatus of claim 1, wherein: Inner walls of the plurality of water inlets (6) are provided with filtering devices (7), and the filtering device (7) comprises: A plurality of filtering plates (71) are provided and respectively clamped to inner walls of the plurality of water inlets (6); A plurality of bolts (72) are provided, respectively clamped to inner walls of the plurality of filtering plates (71), and in threaded connection with the inner walls of the plurality of water inlets (6); After the filtering plate (71) is installed inside the water inlet (6), the bolt (72) is twisted to fix the filtering plate (71) inside the water inlet (6).

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