Auxiliary device for water quality analysis of hydrogeological underground water

Abstract

The utility model relates to an auxiliary device for water quality analysis of hydrogeological underground water, which comprises a sampling barrel and a connecting rope used for collecting and releasing the sampling barrel in the sampling process, the connecting rope is connected with the sampling barrel, the sampling barrel comprises an outer barrel and an inner barrel, the outer barrel is provided with a plurality of water inlets arranged along the length direction of the outer barrel, and the inner barrel is connected with the outer barrel. A plurality of containing cavities corresponding to the water inlets are formed in the inner cylinder, connecting openings corresponding to the water inlets are formed in the containing cavities, and partition plates are arranged among the containing cavities. The sampling barrel is put into underground water needing to be detected by gradually releasing the connecting rope, the water inlets and the connecting ports which are sequentially arranged from top to bottom correspond to different containing cavities, and water at different depths is input into the containing cavities through the water inlets and the connecting ports at different positions to be sampled; the time consumed by an operator for extracting water at different depths for multiple times is shortened, and meanwhile, the sampled water is not easy to mix due to separation of a plurality of accommodating cavities.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater sampling, in particular to an auxiliary device for water quality analysis of hydrogeological groundwater. Background Art

[0002] Groundwater refers to the water stored in the rock voids below the ground surface. Narrowly speaking, it refers to the water in the saturated aquifer below the groundwater table. In the national standard "Hydrogeological Terms" (GB / T 14157-93), groundwater refers to all forms of gravitational water buried below the ground surface. Foreign scholars believe that there are three definitions of groundwater: one is all the water buried in the groundwater that is significantly different from surface water, specifically referring to the water in the saturated zone of the aquifer; the second is the water that flows downward or infiltrates, saturates the soil and rocks, and replenishes springs and wells; the third is the water stored in the rock cavities underground and in the voids of the crustal materials.

[0003] The use of groundwater has started since a long time ago. However, due to the development of modern society and the emergence of various pollutions, groundwater has also been polluted to a certain extent. Therefore, it is necessary to detect and analyze the water quality of groundwater, and sampling of groundwater is required for the detection and analysis of groundwater.

[0004] However, most sampling methods adopt the direct water intake method. This method is not easy to sample water layers at different depths simultaneously. It is necessary to extend into the groundwater layers at different depths multiple times to obtain water at different depths, which is time-consuming and laborious. Content of the Utility Model

[0005] In view of this, the purpose of the utility model is to provide an auxiliary device for water quality analysis of hydrogeological groundwater to solve the problem that the existing water intake method is not easy to sample water layers at different depths simultaneously.

[0006] The utility model is realized through the following technical solutions:

[0007] An auxiliary device for water quality analysis of hydrogeological groundwater includes a sampling cylinder and a connecting rope for retracting and releasing the sampling cylinder during sampling. The connecting rope is connected to the sampling cylinder. The sampling cylinder includes an outer cylinder and an inner cylinder. A plurality of water inlets are arranged on the outer cylinder along the length direction of the outer cylinder. A plurality of partition plates are arranged inside the inner cylinder, and the inner part of the inner cylinder is divided into a plurality of accommodating cavities by the plurality of partition plates. A connection port is arranged on one side of the accommodating cavity close to the water inlet.

[0008] Further defined, the chamber length of the outer cylinder is greater than the length of the inner cylinder. A first spring is arranged above the inner cylinder in the outer cylinder, and both ends of the first spring are abutted against the top surfaces of the outer cylinder and the inner cylinder respectively.

[0009] It is further defined that the top surface of the outer cylinder is provided with an opening, the top surface of the inner cylinder is provided with a connecting rod passing through the opening, and the upper and lower ends of the connecting rod are respectively connected to the connecting rope and the inner cylinder.

[0010] It is further defined that a groove is provided on the inner wall of the outer tube, an elastic connector is arranged in the groove, the extension direction of the elastic connector is perpendicular to the length direction of the inner tube, and a slot matching the elastic connector is provided on the outer wall of the inner tube.

[0011] It is further defined that at least one side of the outer tube is provided with a guide groove, the guide groove extends along the length direction of the outer tube, and a guide block slidably matched with the guide groove is provided on the side wall of the inner tube.

[0012] It is further defined that the elastic plug-in connector includes a second spring and a plug-in block, two ends of the second spring are respectively connected to the groove and the plug-in block, and the top surface of the plug-in block and the top surface of the slot are both inclined surfaces.

[0013] It is further defined that the top surface and the bottom surface of the opening are both provided with sealing rings, and the sealing rings are in contact with the outer wall of the connecting rod.

[0014] It is further defined that a counterweight block is provided on the bottom surface of the outer cylinder.

[0015] The beneficial effects of the utility model are:

[0016] The sampling tube is placed into the groundwater to be tested by gradually releasing the connecting rope, and water at different depths is input into the containing cavity for sampling through water inlets and connecting ports arranged in sequence from top to bottom, corresponding to different containing cavities. This reduces the time consumed by operators for extracting water at different depths for multiple times, and at the same time, multiple containing cavities are separated so that the sampled water is not easily mixed.

[0017] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the first spring of the utility model when it is unfolded;

[0020] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle (the groove and slot are misaligned);

[0021] Figure 4 It is a schematic structural diagram when the second spring of the present utility model contracts;

[0022] Figure 5 is Figure 4 an enlarged schematic diagram at position B in (the groove and the slot are aligned);

[0023] Figure 6 It is a schematic structural diagram of the cooperation between the guiding groove and the guiding block of the present utility model;

[0024] Figure 7 It is a sectional view of the inner cylinder of the present utility model.

[0025] In the figure:

[0026] 1. Outer cylinder; 101. Water inlet; 102. Groove; 2. Inner cylinder; 201. Partition board; 202. Accommodating cavity; 203. Connection port; 204. Slot; 3. First spring; 4. Connecting rod; 5. Guiding block; 501. Guiding groove; 6. Second spring; 601. Inserting block; 7. Sealing ring; 8. Counterweight. Specific embodiments

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Generally, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0029] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] In the above description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "one side" and "the other side" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, terms such as "first" and "second" are only used for differential description and cannot be construed as indicating or implying relative importance.

[0031] In addition, terms such as "the same" do not mean that the components are required to be absolutely the same, but there can be slight differences. The term "vertical" only means that the positional relationship between components is relatively more vertical compared to "parallel", and does not mean that the structure must be completely vertical, but can be slightly inclined.

[0032] Please refer to Figures 1-7 , the present utility model provides a technical solution: an auxiliary device for water quality analysis of hydrogeological groundwater, including a sampling cylinder and a connecting rope for taking in and out the sampling cylinder during the sampling process. The connecting rope is connected to the sampling cylinder. The sampling cylinder includes an outer cylinder 1 and an inner cylinder 2. A plurality of water inlets 101 arranged along the length direction of the outer cylinder 1 are provided on the outer cylinder 1. A plurality of partition plates 201 are arranged in the inner cylinder 2, and the inner part of the inner cylinder 2 is divided into a plurality of accommodation chambers 202 by the plurality of partition plates 201. A connection port 203 is provided on one side of the accommodation chamber 202 close to the water inlet 101.

[0033] In this solution, the number of the water inlets 101, the connection ports 203 and the accommodation chambers 202 is the same, and each accommodation chamber 202 communicates with the water inlet 101 through the connection port 203 in the middle.

[0034] During use, the sampling cylinder is put into the groundwater to be detected by gradually releasing the connecting rope. The water inlets 101 and the connection ports 203 arranged in sequence up and down correspond to different accommodation chambers 202, and water at different depths is input into the accommodation chambers 202 through the water inlets 101 and the connection ports 203 at different positions for sampling, reducing the time consumed by the operator for pumping water at different depths multiple times. At the same time, the plurality of accommodation chambers 202 are separated so that the sampled water is not easily mixed.

[0035] In this embodiment, the chamber length of the outer cylinder 1 is greater than the length of the inner cylinder 2. A first spring 3 is arranged above the inner cylinder 2 in the outer cylinder 1. Both ends of the first spring 3 abut against the top surfaces of the outer cylinder 1 and the inner cylinder 2 respectively.

[0036] Among them, since the length of the chamber of the outer cylinder 1 is greater than that of the inner cylinder 2, there is a space for the inner cylinder 2 to move up and down inside the outer cylinder 1. In the natural state, the first spring 3 pushes the inner cylinder 2 towards the bottom surface of the outer cylinder 1 by its own elasticity. In this state, the water inlet 101 on the outer cylinder 1 and the connection port 203 on the inner cylinder 2 are vertically misaligned, and the lowest position of the water inlet 101 is higher than the highest position of the connection port 203.

[0037] In this embodiment, an open mouth is provided on the top surface of the outer cylinder 1, and a connecting rod 4 passing through the open mouth is provided on the top surface of the inner cylinder 2. The upper and lower ends of the connecting rod 4 are respectively connected to the connecting rope and the inner cylinder 2.

[0038] Put the outer cylinder 1 into the water and sink it. When it reaches the depth to be detected, quickly pull the connecting rope once to make the inner cylinder 2 move quickly upward inside the outer cylinder 1, squeeze the first spring 3. At the same time, as the inner cylinder 2 moves upward, the water inlet 101 and the connection port 203 are communicated, so that water can enter the accommodation cavity 202 through the water inlet 101 and the connection port 203.

[0039] Under the influence of water pressure, when the outer cylinder 1 is pushed upward by the inner cylinder 2, it will be resisted by the water pressure. Thus, when the inner cylinder 2 moves upward to squeeze the first spring 3, the moving distance of the outer cylinder 1 relative to the inner cylinder 2 will be shorter, and then the connection port 203 of the inner cylinder 2 can move to a position flush with the water inlet 101.

[0040] In this embodiment, a groove 102 is formed on the inner wall of the outer cylinder 1, and an elastic plug-in member is arranged in the groove 102. The telescopic direction of the elastic plug-in member is perpendicular to the length direction of the inner cylinder 2, and a slot 204 matching the elastic plug-in member is arranged on the outer wall of the inner cylinder 2.

[0041] Among them, in the state where the water inlet 101 and the connection port 203 are misaligned (i.e., Figure 2 as shown), the groove 102 and the slot 204 are also in a misaligned state (i.e., Figure 3 as shown). At this time, the elastic plug-in member abuts against the outer wall of the inner cylinder 2 and is in an elastic energy storage state;

[0042] When the connecting rope is pulled to make the inner cylinder 2 move upward inside the outer cylinder 1, the slot 204 moves synchronously and in the same direction as the inner cylinder 2. During this process, the slot 204 will move to align with the groove 102 (i.e., Figure 4 as shown). At this time, the elastic plug-in member in the groove 102 releases its elasticity and is inserted into the slot 204 (i.e., Figure 5 as shown), fixing the relative positions of the outer cylinder 1 and the inner cylinder 2, and at the same time, the water inlet 101 and the connection port 203 also remain in a communicated state.

[0043] In this embodiment, at least one side of the outer cylinder 1 is provided with a guiding groove 501 which extends along the length direction of the outer cylinder 1, and a guiding block 5 which is in sliding fit with the guiding groove 501 is arranged on the side wall of the inner cylinder 2.

[0044] When the inner cylinder 2 moves in the outer cylinder 1, the guiding block 5 moves synchronously in the guiding groove 501. Through the cooperation of the guiding groove 501 and the guiding block 5, the water inlet 101 and the connecting port 203 will not be unable to communicate due to the rotation of the inner cylinder 2 during the movement.

[0045] In this embodiment, the elastic plug-in member includes a second spring 6 and a plug-in block 601. Two ends of the second spring 6 are respectively connected with the groove 102 and the plug-in block 601, and the top surfaces of the plug-in block 601 and the slot 204 are both inclined surfaces.

[0046] Wherein, when the groove 102 and the slot 204 are misaligned, the plug-in block 601 abuts against the outer wall of the inner cylinder 2. At this time, the second spring 6 is in a compressed state and is connected with the plug-in block 601. In addition, the elastic force of the second spring 6 is greater than the elastic force of the first spring 3;

[0047] When the groove 102 and the slot 204 move to the horizontal position, the second spring 6 releases its elasticity and pushes the plug-in block 601 into the slot 204. At the same time, one end of the plug-in block 601 away from the slot 204 is still located in the groove 102, thereby fixing the positions of the outer cylinder 1 and the inner cylinder 2;

[0048] After the operator takes out the water, in order to use it next time, the water inlet 101 and the connecting port 203 need to be misaligned again. At this time, only by pressing the connecting rod 4 to move the inner cylinder 2 downward in the outer cylinder 1. During this process, because the top surfaces of the plug-in block 601 and the slot 204 are both inclined surfaces, when the inner cylinder 2 is pressed, the slot 204 gradually moves downward, thereby squeezing the plug-in block 601 out of the slot 204. Then, without the engagement of the slot 204 and the plug-in block 601, the first spring 3 squeezes the inner cylinder 2 to keep the water inlet 101 and the connecting port 203 in a misaligned state.

[0049] In this embodiment, sealing rings 7 are arranged on both the top surface and the bottom surface of the open end, and the sealing rings 7 are attached to the outer wall of the connecting rod 4.

[0050] When pulling the connecting rod 4 upward or pressing the connecting rod 4 downward, by the sealing rings 7 being attached to the outer wall of the connecting rod 4, the sealing performance at the open end can be effectively improved.

[0051] In this embodiment, a counterweight block 8 is arranged on the bottom surface of the outer cylinder 1.

[0052] Through the setting of the counterweight block 8, the outer cylinder 1 can maintain a natural vertical state after entering the groundwater, which is convenient for the operator to pull the connecting rope, so that the inner cylinder 2 can move vertically upward within the outer cylinder 1.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than 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 purpose 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. An auxiliary device for water quality analysis of hydrogeological groundwater, comprising a sampling tube and a connecting rope for collecting and releasing the sampling tube during sampling, wherein the connecting rope is connected to the sampling tube, and characterized in that: The sampling tube comprises an outer tube (1) and an inner tube (2); the outer tube (1) is provided with a plurality of water inlets (101) arranged along the length direction of the outer tube (1); the inner tube (2) is provided with a plurality of partition plates (201); and the interior of the inner tube (2) is divided into a plurality of accommodating chambers (202) by the plurality of partition plates (201); and a connecting port (203) is provided on one side of the accommodating chamber (202) close to the water inlet (101).

2. The auxiliary device for water quality analysis of hydrogeological groundwater according to claim 1, characterized in that: The length of the chamber of the outer cylinder (1) is greater than that of the inner cylinder (2). A first spring (3) is arranged above the inner cylinder (2) in the outer cylinder (1), and two ends of the first spring (3) respectively abut against the top surfaces of the outer cylinder (1) and the inner cylinder (2).

3. The auxiliary device for water quality analysis of hydrogeological groundwater according to claim 1, characterized in that: The top surface of the outer cylinder (1) is provided with an opening, and the top surface of the inner cylinder (2) is provided with a connecting rod (4) penetrating the opening, and the upper and lower ends of the connecting rod (4) are respectively connected to the connecting rope and the inner cylinder (2).

4. The auxiliary device for water quality analysis of hydrogeological groundwater according to claim 3, characterized in that: The inner wall of the outer cylinder (1) is provided with a groove (102), an elastic plug-in component is arranged in the groove (102), the extension direction of the elastic plug-in component is perpendicular to the length direction of the inner cylinder (2), and the outer wall of the inner cylinder (2) is provided with a slot (204) that cooperates with the elastic plug-in component.

5. The auxiliary device for water quality analysis of hydrogeological groundwater according to claim 2, characterized in that: A guide groove (501) is provided on at least one side of the outer cylinder (1), and the guide groove (501) extends along the length direction of the outer cylinder (1). A guide block (5) that slidably cooperates with the guide groove (501) is provided on the side wall of the inner cylinder (2).

6. The auxiliary device for water quality analysis of hydrogeological groundwater according to claim 4, characterized in that: The elastic plug-in connector comprises a second spring (6) and a plug-in block (601), the two ends of the second spring (6) are respectively connected to the groove (102) and the plug-in block (601), and the top surface of the plug-in block (601) and the top surface of the slot (204) are both inclined surfaces.

7. The auxiliary device for water quality analysis of hydrogeological groundwater according to claim 4, characterized in that: The top and bottom surfaces of the opening are both provided with sealing rings (7), and the sealing rings (7) are in contact with the outer wall of the connecting rod (4).

8. The auxiliary device for water quality analysis of hydrogeological groundwater according to any one of claims 1 to 5, characterized in that: A counterweight (8) is provided on the bottom surface of the outer cylinder (1).

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