Underground water sample collector

Abstract

The utility model relates to an underground water sample collector which comprises a collecting container, a side opening is formed in the collecting container, a plugging device is arranged in the collecting container and can plug the side opening, a main pull pipe is connected to the outer top wall of the collecting container, and the plugging device is connected with the lower end of an auxiliary pull rope. Scale marks are arranged on the main pull pipe, when the collecting container is conveyed to a proper depth, the auxiliary pull rope is lifted or the auxiliary pull rope is downwards conveyed, the plugging device does not plug the side opening any more, and at the moment, underground water can enter the collecting container from the side opening; the underground water sampling device has the beneficial effects that underground water at different depths can be sampled, and the applicability is higher.

Description

Technical Field

[0001] The utility model relates to a collection device, in particular to a groundwater sample collector. Background Art

[0002] In order to assess groundwater quality, it is often necessary to sample groundwater. In order to improve sampling efficiency and accuracy, adapt to different sampling needs and reduce sampling costs, a practical groundwater sample collector is needed.

[0003] In the prior art, a surface water or groundwater sample collection device is disclosed, and its document number is: CN206420676U. The device includes a bailer tube, a traction belt, and a reel. The traction belt is housed in the reel. The reel has an outlet end. One end of the traction belt extends from the outlet end and is connected to the upper end of the bailer tube. One end of the traction belt is connected to the upper end of the bailer tube. The traction belt is provided with a scale. The traction belt can be manually or automatically extended and / or retracted from the reel.

[0004] However, in the above scheme, when taking groundwater, only water from the surface layer of the groundwater can be taken. When the depth of the water to be taken is large, this device is not applicable. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a device capable of extracting groundwater at different depths.

[0006] To achieve the above-mentioned object, the technical solution of the utility model is: a groundwater sample collector, comprising a collection container, the collection container being provided with a plurality of side openings, a blocking device being provided in the collection container, the blocking device being capable of blocking the side openings, and a counterweight being connected to the lower end of the collection container;

[0007] The collecting container is connected to a lifting assembly, which includes a main pull tube and an auxiliary pull rope. The main pull tube is a tube body, and the auxiliary pull rope passes through the main pull tube.

[0008] The lower end of the main pull tube is connected to the outer top wall of the collection container, and the lower end of the auxiliary pull rope extends into the collection container and is connected to the blocking device. By controlling the auxiliary pull rope, the blocking device no longer blocks the side opening. At this time, groundwater can enter the sample collector through the side opening.

[0009] Furthermore, there are two side openings, which are symmetrically distributed on the collection container. The blocking device includes a side door that is adapted to the shape and position of the side opening. The side door is located inside the collection container and is connected to the collection container.

[0010] Furthermore, a through hole is provided on the top wall of the collection container, the auxiliary pull rope passes through the through hole and the lower end thereof is connected to the side door.

[0011] Furthermore, the auxiliary pull rope includes a base part and an extension part, the upper end of the extension part is connected to the lower end of the base part, the extension part is an inverted "V" shape, the lower end of the base part and the extension part are both located in the collection container, and the free end of the extension part is connected to the side door.

[0012] Furthermore, sleeves are provided on both sides of the side door, shafts are provided on both sides of the side opening, the two ends of the shaft are respectively connected to an upper connecting rod and a lower connecting rod, and the sleeves are sleeved on the shaft on the corresponding side.

[0013] Furthermore, a compression return spring is sleeved on the shaft rod, and the compression return spring is located between the side door and the upper connecting rod.

[0014] Furthermore, a compression return spring is sleeved on the shaft rod, and the compression return spring is located between the side door and the lower connecting rod. The auxiliary pull rope is a rod body with a certain hardness.

[0015] Furthermore, there are four side openings on the collecting container, the cross section of the collecting container is circular, and the blocking device includes an annular plug, and a cross body is connected to the center of the annular plug.

[0016] Furthermore, a compression reset spring is provided on the auxiliary pull rope, and the compression reset spring is located between the top of the collection container and the annular plug. The two ends of the compression reset spring are respectively connected to the inner top wall of the collection container and the center of the cross body.

[0017] Compared with the prior art, the beneficial effects of the present invention are: a side opening is provided on the collecting container of the present device, and a counterweight block is connected to the collecting volume at the same time, a sealing device is provided in the collecting container, and the sealing device can seal the side opening, and the outer top wall of the collecting container is connected to a main pull tube, and the sealing device is connected to the lower end of the auxiliary pull rope, and a scale line is provided on the main pull tube. When the collecting container is sent to a suitable depth, when the auxiliary pull rope is pulled or sent downward, the sealing device no longer seals the side opening, and groundwater can enter the collecting container from the side opening at this time. Therefore, the collector can sample groundwater at different depths and protect the collected water samples, and has high applicability and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main cross-sectional structure of the first embodiment of the present utility model;

[0019] Figure 2 This is a side view of the structure of a plugging device connected to a collection container in an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the position of the blocking device when one side of the door is open;

[0021] Figure 4 This is a schematic diagram of the overall structure of the blocking device when one side of the door is open;

[0022] Figure 5 This is a schematic diagram of the main cross-sectional structure of the second embodiment of the present utility model;

[0023] Figure 6 This is a schematic diagram of the main cross-sectional structure of the second embodiment of the present invention when working;

[0024] Figure 7 This is a schematic diagram of the main cross-sectional structure of the third embodiment of the present utility model;

[0025] Figure 8 This is a schematic diagram of the top view of the connection between the annular plug and the cross body of the utility model;

[0026] In the figure, 1-collecting container, 2-counterweight, 3-side opening, 4-main pull tube, 5-auxiliary pull rope, 501-base part, 502-extension part, 6-side door, 7-axis rod, 8-connecting rod, 9-sleeve, 10-compression return spring, 11-ring plug, 12-cross body. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention. In the embodiments, the components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for which protection is claimed, but merely represents selected embodiments of the present application.

[0028] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," "back," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections; electrical connections; hydraulic connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0030] See Figures 1 to 4 As shown, a groundwater sample collector includes a collecting container 1, which is a shell with a certain content space. The lower end of the collecting container 1 is conical, and the bottom of the collecting container 1 is connected to a counterweight 2 through a connecting rope. The collecting container 1 is provided with a side opening 3, and a blocking device is provided at the side opening 3. In the initial state, the blocking device blocks the side opening 3; a lifting assembly is connected to the collecting container 1, and the lifting assembly includes a main pull tube 4 and an auxiliary pull rope 5. The main pull tube 4 is a slender tube body and has a certain hardness. The auxiliary pull rope 5 passes through the main pull tube 4, and the main pull tube 4 is provided with a There are scale lines, the lower end of the main pull tube 4 is connected to the outer top wall of the collecting container 1, and the lower end of the auxiliary pull rope 5 is connected to the sealing device, which is located inside the collecting container 1; when in use, the collecting container 1 is placed in the hole drilled in advance. When the collecting container 1 is put into the preset depth, the sealing device is controlled by the auxiliary pull rope to no longer seal the side opening 3, and the collector starts to collect groundwater samples. After a period of time, a certain amount of sample water is contained in the collecting container 1, so that the sealing device seals the side opening 3 again, and then the lifting assembly is manually lifted until the collector is pulled out of the hole.

[0031] As the first embodiment of the present invention, there are two side openings 3, which are symmetrically distributed on the collection container 1. The blocking device includes a side door 6, which is adapted to the shape of the side opening 3. The side door 6 is arranged in the content space of the collection container 1. The connection structure between the side door 6 and the collection container 1 is as follows: two shafts 7 are provided at the side opening 3 in the content cavity of the collection container 1. Both ends of the shaft 7 are connected to the collection container 1 through a connecting rod 8, and the connecting rod 8 is vertically connected to the inner wall of the collection container 1. Then, the connecting rod 8 at the high end is the upper connecting rod, and the connecting rod 8 at the low end is the lower connecting rod. The two shaft rods 7 are symmetrically distributed on both sides of the side opening 3. Sleeves 9 are provided on both sides of the side door 6. The sleeves 9 are sleeved on the shaft rod 7 on the corresponding side. The side door 6 can slide along the length direction of the shaft rod 7. A compression return spring 10 is also sleeved on the shaft rod 7. The compression return spring 10 is located between the side door 6 and the upper connecting rod. When the side door 6 blocks the side opening 3 at the corresponding position, the compression return spring 10 is in a natural state.

[0032] A through hole is provided on the top wall of the collection container 1, and the auxiliary pull rope 5 passes through the through hole and its lower end is connected to the side door 6. The auxiliary pull rope 5 is in an inverted "Y" shape. The auxiliary pull rope 5 includes a base portion 501 and an extension portion 502. The base portion 501 is located at the high end, and the extension portion 502 is located at the low end. The upper end of the extension portion 502 is connected to the lower end of the base portion 501, and the extension portion 502 is in an inverted "V" shape. The lower end of the base portion 501 and the extension portion 502 are both located in the content cavity; the main pull tube 4 is made of Several short tubes are butt-jointed, each of which is 1m long. Two adjacent short tubes are clamped together, and one end of each short tube is provided with a depression with a "concave"-shaped cross-section, and the other end is provided with a protrusion. There are several protrusions and depressions, and the several protrusions and depressions are distributed in a circular array around the vertical center axis of the main pull tube 4. The number of protrusions and depressions is adapted and coupled. Two short tubes in adjacent positions can be pieced together to form a whole. Several short tubes are tightly packed together according to the depth of the pre-excavated holes.

[0033] When using the above-mentioned groundwater sample collection device, first place the collection container 1 into the hole to be sampled, and lower the collection container 1, then observe the scale line on the main pull tube 4. When the collection container 1 is placed to the specified depth, pull the auxiliary pull rope 5, and the side door 6 no longer forms a seal on the side opening 3. At this time, the compression return spring 10 forms a compressed state, and the sample water of this depth will penetrate into the collection container 1. After standing for a period of time, a certain volume of groundwater sample is contained in the collection container 1. Then release the auxiliary pull rope 5, and the side door 6 returns to its initial state under the action of the reset force of the compression return spring 10 (that is, continues to form a seal on the side door). At this time, pull the main pull tube 4 and the auxiliary pull rope 5 at the same time, pull the collection container 1 out of the hole, and test the collected groundwater samples.

[0034] See Figure 5 and Figure 6 As shown, as the second embodiment of the present invention, on the basis of embodiment one, the above-mentioned auxiliary pull rope 5 and main pull tube 4 are replaced, specifically as follows: the main pull tube is no longer a spliced ​​structure, but a hose with a certain flexibility, and the base part 501 and the extension part 502 of the auxiliary pull rope 5 are integrally formed, and both are rods with a certain hardness, the compression return spring 10 is located between the side door 6 and the lower connecting rod 8, and the two ends of the compression return spring 10 are respectively connected to the side door 6 and the connecting rod 8. When the side door 6 blocks the side opening 3 at the corresponding position, the compression return spring 10 is in a natural state.

[0035] When implementing this embodiment, the horizontal height of the main pull tube 4 remains unchanged, the auxiliary pull rope 5 is pushed downward, and the side door 6 moves downward under the action of the auxiliary pull rope 5. At this time, the side door 6 no longer blocks the side opening 3, and the compression return spring 10 changes from a natural state to a compressed state. After standing for a period of time, a certain amount of sample water will be contained in the collection container 1. Then, the auxiliary pull rope 5 is released, and the side door 6 returns to its initial state under the action of the reset force of the compression return spring 10, that is, it blocks the side opening 3 again.

[0036] See Figure 7 and Figure 8 As shown, as the third embodiment of the present invention, the sealing device is an annular plug 11, and on the basis of the above-mentioned embodiment one or embodiment two, the setting of the extension part 502 is cancelled, and the auxiliary pull rope 5 only has the base part 501. At this time, the lower end of the base part 501 is directly connected to the annular plug 11, and the cross-section of the collecting container 1 is cylindrical. There are four side openings 3 on the collecting container 1, and the four side openings 3 are distributed in an annular array around the vertical center axis of the collecting container 1. A cross body 12 is connected to the center of the annular plug 11, and the annular plug 11 can form a seal for the side opening 3. A compression reset spring 10 is sleeved on the auxiliary pull rope 5, and the compression reset spring 10 is located between the inner top of the collecting container 1 and the annular plug 11. The two ends of the compression reset spring 10 are respectively connected to the inner top wall of the collecting container 1 and the center of the cross body 12.

[0037] When implementing this embodiment, the collecting container 1 is placed in the hole to be sampled, the auxiliary pull rope 5 is pulled, and the side door 6 no longer blocks the side opening 3. The sample water of that depth will seep into the collecting container 1. After standing for a period of time, a certain volume of groundwater sample will be contained in the collecting container 1. Then the auxiliary pull rope 5 is loosened, and the side door 6 returns to its initial state under the action of the reset force of the compression reset spring 10.

[0038] In the above-mentioned embodiments, the side opening is located near the upper end of the collecting container. In this case, even if the blocking device no longer blocks the side opening, it will not cause all the water samples in the collecting container to flow out.

[0039] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based primarily on the scope of protection of the claims.

Claims

1. A groundwater sample collector, comprising a collection container having a plurality of side openings, characterized in that: The collecting container is provided with a blocking device, which can block the side opening, and the lower end of the collecting container is connected to a counterweight block; The collecting container is connected to a lifting assembly, which includes a main pull tube and an auxiliary pull rope. The main pull tube is a tube body, and the auxiliary pull rope passes through the main pull tube. The lower end of the main pull tube is connected to the outer top wall of the collection container, and the lower end of the auxiliary pull rope extends into the collection container and is connected to the blocking device. By controlling the auxiliary pull rope, the blocking device no longer blocks the side opening. At this time, groundwater can enter the sample collector through the side opening.

2. A groundwater sample collector according to claim 1, characterized in that: There are two side openings, which are symmetrically distributed on the collection container. The blocking device includes a side door that is adapted to the shape and position of the side opening. The side door is located inside the collection container and is connected to the collection container.

3. A groundwater sample collector according to claim 2, characterized in that: A through hole is provided on the top wall of the collection container, the auxiliary pull rope passes through the through hole and the lower end of the auxiliary pull rope is connected to the side door.

4. A groundwater sample collector according to claim 3, characterized in that: The auxiliary pull rope includes a base and an extension part. The upper end of the extension part is connected to the lower end of the base part. The extension part is an inverted "V" shape. The lower end of the base part and the extension part are both located in the collection container. The free end of the extension part is connected to the side door.

5. A groundwater sample collector according to claim 4, characterized in that: Sleeves are provided on both sides of the side-opening door, shaft rods are provided on both sides of the side opening, the two ends of the shaft rods are respectively connected with an upper connecting rod and a lower connecting rod, and the sleeves are sleeved on the shaft rods on the corresponding sides.

6. A groundwater sample collector according to claim 5, characterized in that: The shaft rod is sleeved with a compression return spring, which is located between the side door and the upper connecting rod.

7. The groundwater sample collector according to claim 5, characterized in that: The shaft rod is sleeved with a compression return spring, which is located between the side door and the lower connecting rod. The auxiliary pull rope is a rod body with a certain hardness.

8. The groundwater sample collector according to claim 1, characterized in that: There are four side openings on the collecting container, the cross section of the collecting container is circular, and the blocking device includes an annular plug, the center of which is connected to a cross body.

9. The groundwater sample collector according to claim 8, characterized in that: The auxiliary pull rope is sleeved with a compression reset spring, which is located between the top of the collection container and the annular plug. The two ends of the compression reset spring are respectively connected to the inner top wall of the collection container and the center of the cross body.

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