Sandy soil stratum water sampling device

Abstract

The utility model belongs to the technical field of construction auxiliary equipment, and particularly discloses a sand stratum water sampling device which comprises an operating rod and a sampling unit used for sampling water, the bottom of the operating rod is connected with a fixing rod, the fixing rod is connected with a fixing block, the fixing block is fixedly connected with a spring, the fixing rod is provided with a groove, and the sampling unit is arranged in the groove. A drill bit is arranged at the bottom of the fixing rod. The sampling unit is located between the spring and the drill bit. An operator uses the operating rod to align the drill bit to the sandy soil ground, the drill bit is rotated to drill the whole device into the sandy soil ground, the fixing rod and the sampling unit are located under the sandy soil ground along with the drill bit, underground water is collected through the sampling unit, then the whole device is lifted, and the collected underground water is guided out for detection. Sandy soil stratum water samples are obtained through the device, operation is convenient, and the sampling process is more efficient compared with an existing water taking method.

Description

Technical Field

[0001] The utility model relates to the technical field of construction auxiliary equipment, in particular to a water sampling device for sandy soil layers. Background Art

[0002] Geotechnical engineering usually requires groundwater sampling tests. For sandy soil layers, twist drills can usually only determine the thickness, density and groundwater level of the sandy soil layers, but cannot obtain water samples. Water sampling requires digging additional exploratory wells to obtain water samples. The specific exploration methods are completed by a combination of automobile drilling rigs, Luoyang shovels, twist drills, artificial exploratory wells, etc.

[0003] Due to the high groundwater level, in order to obtain groundwater samples, several operators had to be deployed to explore wells and take water samples. The water collection process was cumbersome, which was not only costly, labor-intensive but also time-consuming. Utility Model Content

[0004] The utility model aims to provide a water sampling device for sandy soil layers, so as to solve the problem that the existing water sampling method for sandy soil layers is relatively complicated, time-consuming and labor-intensive.

[0005] In order to achieve the above-mentioned purpose, the basic solution provided by the utility model is: a water sampling device for sandy soil strata, comprising an operating rod and a sampling unit for taking water samples, the bottom of the operating rod is connected to a fixed rod, the fixed rod is connected to a fixed block, the fixed block is fixed with a spring, the fixed rod is provided with a groove, the sampling unit is arranged in the groove, the bottom of the fixed rod is provided with a drill bit, and the sampling unit is located between the spring and the drill bit.

[0006] The principle and beneficial effect of the utility model are as follows: the utility model allows an operator to use an operating rod to aim the drill bit at the sandy ground, rotate the drill bit to drill the entire device into the sandy ground, so that the fixed rod and the sampling unit are located under the sandy ground following the drill bit, and groundwater is collected through the sampling unit. Subsequently, the entire device is lifted, and the collected groundwater is led out for testing. Water samples of sandy soil strata are obtained through this device, and the operation is convenient. There is no need to use artificial exploration wells for water sampling, and the sampling process is more efficient than existing water extraction methods.

[0007] Solution 2, which is a preferred basic solution, the sampling unit includes a sampling barrel and a connecting assembly, the top of the sampling barrel is against a spring, a plurality of sampling holes are provided on the sampling barrel, a blocking cover is detachably connected to the bottom of the sampling barrel, the blocking cover is connected to the drill bit through the connecting assembly, and the end of the fixing rod close to the drill bit is connected to the connecting assembly;

[0008] When the drill bit is used to drill into the sand layer, the sampling tube enters the sand underground along with the drill bit, and the groundwater seeps into the sampling tube from the sampling hole. The water in the sampling tube is temporarily stored in the sampling tube because the sealing cover is covered on the bottom of the sampling tube. After the sampling tube is taken out, the spring is compressed to take the sampling tube out of the fixing rod, and the groundwater in the sampling tube can be discharged by removing the sealing head.

[0009] Option three is a preferred option of option two, wherein the connecting assembly includes a connecting block and an insert rod, wherein the insert rod is fixedly connected to the bottom of the sealing cover, and the connecting block is connected to the bottom of the fixing rod, and a socket is provided on the connecting block, and the insert rod is inserted into the socket; the bottom of the sampling tube is fixed by inserting the insert rod of the sealing cover into the socket of the connecting block.

[0010] Option 4 is a preferred option of Option 2. A protrusion is connected to the top of the sampling tube. The diameter of the protrusion is smaller than the outer diameter of the spring. The protrusion is inserted into the spring. The sampling tube can be stabilized by snapping the protrusion into the spring.

[0011] Option 5 is a preferred option of Option 4, wherein the plugging cap is threadably connected to the sampling tube; by screwing the plugging cap, groundwater can be led out of the sampling tube after sampling is completed.

[0012] Option six is ​​the preferred option of option five. The sampling hole on the sampling barrel has a length that is 1 / 2 of the height of the sampling barrel. When groundwater seeps into the sampling barrel from the sampling hole, it will be temporarily stored in the sampling barrel. The sampling barrel is a temporary water storage device. If the entire sampling barrel has sampling holes, the groundwater that enters the sampling barrel will easily flow out from the sampling holes again and cannot be collected.

[0013] Solution seven, which is a preferred embodiment of the basic solution, the operating rod is connected to a handle; the handle is provided to facilitate the operator to rotate the operating rod and allow the drill bit to drill into the sandy soil.

[0014] Option eight is a preferred option of option three. The number of the insertion rods is three, and the three insertion rod circular shafts are arrayed on the sealing cover. The number and positions of the holes match the insertion rods. Setting three insertion rods and the circular shaft array helps the sampling tube to remain stable on the drill bit and the connecting block. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a stereoscopic diagram of a water sampling device for sandy soil strata of the utility model;

[0016] Figure 2 This is a front view of a water sampling device for sandy soil strata of the utility model;

[0017] Figure 3 The utility model discloses an exploded structural diagram of a sampling unit in a sandy soil stratum water sampling device. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below through specific implementation methods:

[0019] The figure marks in the drawings of the specification include: 1. operating lever; 2. handle; 3. fixing rod; 4. sampling tube; 5. sampling hole; 6. spring; 7. fixing block; 8. plug rod; 9. plug hole; 10. connecting block; 11. drill bit; 12. bump; 13. sealing cover.

[0020] like Figures 1 to 3 As shown: a water sampling device for sandy soil strata, including an operating rod 1 and a sampling unit, the bottom end of the operating rod 1 is fixedly connected to a fixing rod 3, the side of the operating rod 1 close to the fixing rod 3 is fixedly connected to a handle 2, and the handle 2 is provided with an anti-slip sleeve; a groove is provided at the bottom of the fixing rod 3, a fixing block 7 is fixedly connected in the groove of the fixing rod 3, and a spring 6 is fixedly connected to the bottom of the fixing block 7.

[0021] The sampling unit includes a sampling barrel 4 and a connecting assembly. The interior of the sampling barrel 4 is hollow. A protrusion 12 is fixedly connected to the top of the sampling barrel 4. The protrusion 12 extends into the spring 6. The bottom of the spring 6 rests on the top of the sampling barrel 4. A plurality of sampling holes 5 are provided on the sampling barrel 4. The length of the portion of the sampling barrel 4 with the sampling holes 5 is 1 / 2 of the height of the sampling barrel 4. The plurality of sampling holes 5 are all provided in the upper half of the sampling barrel 4. A sealing cover 13 is threadedly connected to the bottom of the sampling barrel 4.

[0022] The connecting assembly includes a connecting block 10 and an insert rod 8. There are three insert rods 8. The three insert rods 8 are arranged in a circular array at the bottom of the sealing cover 13 and are fixedly connected to the sealing cover 13. The connecting block 10 is fixedly connected to the bottom of the fixed rod 3. Three sockets 9 are provided on the connecting block 10. Each insert rod 8 is inserted into the socket 9. A drill bit 11 is fixedly connected to the bottom of the connecting block 10. The model of the drill bit 11 can be a twist drill bit 11 or other drill bit 11 model suitable for sandy soil formations.

[0023] The implementation method of this embodiment is as follows: the device has been cleaned before use. When in use, the operator holds the handle 2 and presses the drill bit 11 against the sandy soil, rotates the entire device and uses the drill bit 11 to drill into the sandy soil. The sampling tube 4 and the fixing rod 3 follow the drill bit 11 into the sandy soil. When the sampling tube 4 completely enters below the sandy soil surface and is located at the groundwater level, it remains still and does not continue to drill into the sandy soil. At this time, the groundwater and the mixed fine rock and soil in the sandy soil layer infiltrate into the sampling tube 4 through the sampling hole 5. The fine rock and soil will not become an obstacle to the infiltration of groundwater. The groundwater enters the sampling tube through the process of infiltration. After the operator stays for about ten seconds to half a minute, he lifts the sampling tube 4 and the drill bit 11 containing groundwater.

[0024] The operator holds the sampling tube 4 and continues to compress the spring 6 upwards, and the insertion rod 8 on the sealing cover 13 is pulled out from the insertion hole 9. Then the sampling tube 4 is tilted to withdraw the protrusion 12 from the spring 6. The spring 6 is reset, and the sampling tube 4 removed from the fixing rod 3 is aligned with the water sample collection box, and the sealing cover 13 is unscrewed to allow the groundwater to flow into the collection box. Then the groundwater quality is tested using the ion content detection method.

[0025] When it is necessary to continue sampling, screw the blocking cover 13 onto the bottom of the sampling tube 4, press the spring 6, insert the plugging rod 8 of the blocking cover 13 into the insertion hole 9, release the spring 6 and make the protrusion on the top of the sampling tube 4 fit into the spring 6, and then continue sampling according to the above operation.

[0026] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A water sampling device for sandy soil strata, characterized in that: The invention comprises an operating rod (1) and a sampling unit for taking water samples, wherein the bottom of the operating rod (1) is connected to a fixing rod (3), the fixing rod (3) is connected to a fixing block (7), the fixing block (7) is fixed to a spring (6), the fixing rod (3) is provided with a groove, the sampling unit is arranged in the groove, the bottom of the fixing rod (3) is provided with a drill bit (11), and the sampling unit is located between the spring (6) and the drill bit (11).

2. A sandy soil layer water sampling device according to claim 1, characterized in that: The sampling unit comprises a sampling cylinder (4) and a connecting assembly, wherein the top of the sampling cylinder (4) is in contact with a spring (6), a plurality of sampling holes (5) are provided on the sampling cylinder (4), a blocking cover (13) is detachably connected to the bottom of the sampling cylinder (4), the blocking cover (13) is connected to a drill bit (11) via the connecting assembly, and an end of the fixing rod (3) close to the drill bit (11) is connected to the connecting assembly.

3. A sandy soil layer water sampling device according to claim 2, characterized in that: The connection assembly comprises a connection block (10) and an insertion rod (8), wherein the insertion rod (8) is fixedly connected to the bottom of the blocking cover (13), the connection block (10) is connected to the bottom of the fixing rod (3), and a plug hole (9) is provided on the connection block (10), and the insertion rod (8) is plugged into the plug hole (9).

4. A sandy soil layer water sampling device according to claim 2, characterized in that: A bulge (12) is connected to the top of the sampling tube (4); the diameter of the bulge (12) is smaller than the outer diameter of the spring (6); and the bulge (12) is inserted into the spring (6).

5. A sandy soil layer water sampling device according to claim 4, characterized in that: The blocking cover (13) is threadedly connected to the sampling tube (4).

6. A sandy soil layer water sampling device according to claim 5, characterized in that: The sampling tube (4) is provided with a sampling hole (5) having a length which is 1 / 2 of the height of the sampling tube (4).

7. The sandy soil layer water sampling device according to claim 1, characterized in that: The operating rod (1) is connected to a handle (2).

8. The sandy soil layer water sampling device according to claim 3, characterized in that: The number of the insertion rods (8) is three, and the three insertion rods (8) are arranged in a circular axis array on the blocking cover (13), and the number and positions of the insertion holes (9) are matched with the insertion rods (8).

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