CN210005300U

CN210005300U - Groundwater sampling device

Info

Publication number: CN210005300U
Application number: CN201920788007.2U
Authority: CN
Inventors: 蓝冰; 严良政; 文琳
Original assignee: Guangdong Nonferrous Mine Geological Disaster Prevention And Control Center
Current assignee: Guangdong Nonferrous Mine Geological Disaster Prevention And Control Center
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-01-31
Anticipated expiration: 2029-05-28

Abstract

The utility model relates to an groundwater sampling device, including placing subaerial base and the sampler body of setting in the base below, base threaded connection has the drilling rod of vertical setting, the drilling rod lower extreme runs through the base and is fixed with sampler body upper end, the inside water storage chamber that is provided with of sampler body, sampler body lower extreme intercommunication water storage chamber and external world are provided with the water inlet, the water inlet shutoff has the filter screen, the drilling rod sets up along axis direction cavity, sliding connection has the piston rod in the drilling rod, the piston rod lower extreme is fixed with the sealed piston of gliding from top to bottom in the water storage intracavity, the drilling rod is stretched out to the piston rod upper end.

Description

Groundwater sampling device

Technical Field

The utility model belongs to the technical field of the technique of groundwater sample and specifically relates to relate to groundwater sampling device.

Background

In the existing water quality restoration project, water sample collection is a crucial link for water environment monitoring, and the normalization and accuracy of water sample collection directly influence the accuracy of subsequent detection. Especially, in the groundwater remediation process, the groundwater acquisition difficulty is large, and the sampling integrity is not easy to control.

In the existing sampling technology, a sample bottle and an electromagnetic valve are mostly adopted for sampling, but the sample bottle and a sampler which are communicated up and down are complex to operate, have low efficiency and cannot finish sampling quickly, and a plurality of circuit pipelines and lifting pull wires greatly reduce the success rate and efficiency of sampling.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an groundwater sampling device has the function of simple and convenient swift sample groundwater.

In order to achieve the above purpose, the utility model provides a following technical scheme:

groundwater sampling device, including the base of placing on ground and the sampler body of setting in the base below, base threaded connection has the vertical drilling rod that sets up, drilling rod lower extreme runs through the base and with the upper end of sampler body is fixed, the sampler body is inside to be provided with the water storage chamber, the sampler body lower extreme intercommunication water storage chamber and external are provided with the water inlet, the water inlet shutoff has the filter screen, drilling rod along axis direction cavity setting, sliding connection has the piston rod in the drilling rod, the piston rod lower extreme is fixed with in the water storage intracavity gliding sealing piston from top to bottom, the piston rod upper end stretches out drilling rod.

Through the above arrangement, the base is rectangular, the base is used for being placed on the ground for a user to trample, the stability of the drilling rod during drilling is improved, and a user can conveniently rotate the drilling rod to drill, the drilling rod penetrates through the base and is fixed with the sampler body, external threads are arranged on the periphery of the drilling rod along the length direction, the drilling rod is in threaded connection with the base, so that the sampler body moves up and down along the drilling rod, thereby enabling the sampler body to drill underground for a certain depth along the length direction of the drilling rod, wherein the inside of the sampler body is hollow and provided with a water storage cavity, a water inlet for communicating the external environment with the water storage cavity is formed on the lower end face of the water storage cavity, the water inlet is sealed and sealed by a filter screen, soil, sand and stone are filtered by the filter screen, the filter screen can be penetrated by underground water, the filter screen has strength and toughness determined by and is fixedly connected with the sampler body, the strength of the filter screen meets the condition that the pressure of receiving the soil and sand and stone is not damaged when the sampler body is detected, the strength of the filter screen is met when the sampler body is detected, the strength of the drill rod is not damaged along the axis direction, the inside of the drilling rod is hollow and both ends, both ends of the piston rod, thereby improving the efficiency of the underground water sampling piston rod after the piston rod is pulled to be pulled to the underground water storage piston rod, thereby, the underground water sampling piston rod, the underground sampling piston rod.

The utility model discloses advance step settings, the sampler body sets up to type cylinder type, sampler body lower extreme circular cone sets up.

Through the setting, set up sampler body appearance into class cylinder type to set up sampler body lower extreme circumference, thereby reduced the area of contact of sampler body between the in-process of exploring under and the soil, improved the pressure when exploring under, more atress when making the sampler body visit under, the operation of being convenient for.

The utility model discloses advance step settings, sampler body periphery be fixed with the spiral shell to with the self tapping screw thread that drilling rod external screw thread sent.

Through the setting, be fixed with self tapping screw thread with sampler body periphery to self tapping screw thread's spiral shell is to desperately with the spiral shell of probing the pole external screw thread, thereby has improved the bulk strength of sampler body, makes the probe body lower exploration easier, is convenient for lower exploration to deeper degree of depth, also makes the sampler body not fragile.

The utility model discloses advance step settings, the boring bar top is fixed with the hand wheel, the hand wheel with the coaxial rotation of boring bar.

Through the arrangement, a hand wheel is fixed at the top end of the drilling rod and rotates coaxially with the drilling rod, the outer diameter of the hand wheel is larger than that of the drilling rod, and the drilling rod and the sampler body are driven to rotate coaxially by rotating the hand wheel. Thereby for the user provides the position of gripping when rotating the drilling rod to just keeping away from, having increased the arm of application of force when rotating the drilling rod, make and rotate the drilling rod more laborsaving, convenient to use person operates.

The utility model discloses advance step settings, the piston rod top is fixed with the load piece, the load piece is kept away from the end of piston rod is fixed with the handle.

Through the arrangement, the force bearing block and the handle are convenient for a user to hold and apply force, the piston rod is convenient to pull up, and then the user pulls up the sealing piston to enable the water storage cavity to form negative pressure below the sealing piston so as to pump underground water.

The utility model discloses advance step settings, the load piece with can dismantle between the drilling rod and be connected with the mounting.

Through the setting, can dismantle between load piece and probing pole and be connected with the mounting, the mounting can be for lining up load piece and probing pole's screw etc. and fixed and spacing with piston rod and probing pole through the mounting, makes the piston rod follow the probing pole and rotate and remove, is convenient for follow the probing pole with the piston rod and go up the undermining.

The utility model discloses advance step settings, the base up end is provided with the slipmat.

Through the arrangement, the anti-slip pad is fixed on the upper end face of the base, so that a user can conveniently step on the base to rotate the drilling rod, the condition that the sole of the user slips when the user rotates to drill is reduced, and the safety is improved.

The utility model discloses advance step settings, the terminal surface protrusion is fixed with conical grafting end under the base, the grafting end with the slipmat position is just right.

Through the setting, the terminal surface is fixed with conical grafting end under the base, inserts ground through the grafting end, improves and the connectivity between the ground, has further step improved the user and has trampled the security when carrying out groundwater sample on the base to with the setting of grafting end under the slipmat, can improve the pressure when the end of pegging graft inserts the ground, more make things convenient for the end of pegging graft to insert ground.

To sum up, the utility model discloses following beneficial effect has:

1. by arranging the base placed on the ground and the drilling rod which penetrates through the base and is in threaded connection with the base, the lower end of the drilling rod is fixedly provided with the sampler body, the drilling rod and the sampler body are driven to drill towards the ground by rotating the drilling rod, the piston rod is pulled upwards to drive the sealing piston to move, negative pressure is formed on the part, below the sealing piston, of the water storage cavity in the sampler body, and therefore underground water enters the water storage cavity;

2. the sampler body is arranged into a cylinder-like shape, the lower end of the sampler body is arranged in a conical shape, and self-tapping threads which are straight to the screw direction and the external threads of the drilling rod are fixed on the periphery of the sampler body, so that the pressure intensity of the sampler body during downward exploration is improved, and a user can conveniently rotate the drilling rod and the downward sampler body;

3. the anti-slip mat is fixed on the upper end face of the base, and the conical insertion end is fixed in the protruding position, corresponding to the anti-slip mat, below the base, so that the connection relation between the base and the ground is improved, and the slipping condition of a user when the underground water sampling device is used is reduced.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is a sectional view of the present embodiment;

FIG. 3 is an enlarged view taken at A in FIG. 2;

fig. 4 is a cross-sectional view of the water storage chamber of the present embodiment.

Reference numerals: 1. a base; 11. a non-slip mat; 12. a plug end; 2. a sampler body; 21. a water storage cavity; 22. a water inlet; 23. a filter screen; 24. self-tapping threads; 3. drilling a probe rod; 31. a hand wheel; 4. a piston rod; 41. a sealing piston; 42. a bearing block; 43. a handle; 44. and a fixing member.

Detailed Description

The present invention will be described in further detail in with reference to the accompanying drawings.

As shown in fig. 1-2, the utility model discloses an groundwater sampling device, base 1 including the rectangle, threaded connection has the probing pole 3 of vertical setting in the base 1 is just well, probing pole 3 runs through base 1 and sets up, 3 lower extreme fixedly connected with sampler body 2 of probing pole, the inside cavity of sampler body 2 is provided with water storage chamber 21, the water inlet 22 of intercommunication water storage chamber 21 and external environment is seted up to 2 lower extremes of sampler body, water inlet 22 department shutoff has filter screen 23. probing pole 3 is provided with the cavity along self length direction cavity, link up from top to bottom the cavity, cavity lower extreme intercommunication water storage chamber 21, the up end of probing pole 3 is link up to the cavity upper end, sliding connection has piston rod 4 in the cavity, the up end of probing pole 3 is stretched out to 4 upper ends of piston rod, 4 lower extreme of piston rod is fixed with sealing piston 41, sealing piston 41 slides from top to bottom in.

Wherein filter screen 23 filters earth grit etc. and filter screen 23 can supply groundwater to pass to filter screen 23 has definite intensity and toughness and with sampler body 2 fixed connection, and the pressure that receives earth grit etc. when sampler body 2 is visited down is satisfied to filter screen 23's intensity and does not take place the damage.

The appearance of the sampler body 2 is set to be cylindrical, the lower end of the sampler body 2 is conical, the water inlet 22 is arranged at the conical end part of the lower end of the sampler body 2, the periphery of the sampler body 2 is also fixed with self-tapping threads 24, and the thread direction of the self-tapping threads 24 is consistent with the thread direction of the external threads of the drilling rod 3.

As shown in fig. 2 to 3, a hand wheel 31 with a diameter larger than that of the drilling rod 3 is fixed at the top end of the drilling rod 3, the hand wheel 31 and the drilling rod 3 rotate coaxially, a force bearing block 42 is fixed at the upper end of the piston rod 4 extending out of the drilling rod 3, the diameter of the force bearing block 42 is larger than that of the piston rod 4, a handle 43 is fixed at the end of the force bearing block 42 far away from the drilling rod 3, and the handle 43 and the force bearing block 42 are arranged to facilitate a user to hold and pull the piston rod 4.

And the fixing piece 44 is detachably connected between the bearing block 42 and the upper end face of the drilling rod 3, the fixing piece 44 is a screw, the screw vertically penetrates through the bearing block 42 and the upper end face of the drilling rod 3, and the bearing block 42 is connected with the drilling rod 3 through the screw, so that the piston rod 4 rotates and extends downwards along with the drilling rod 3.

As shown in fig. 4, two sets of anti-slip pads 11 are fixed on the upper end surface of the base 1, the two sets of anti-slip pads 11 are respectively arranged on two sides of the drilling rod 3, and the distance between the anti-slip pads 11 is approximately the same as the distance between two legs of a user for the user to step on. Two groups of conical insertion ends 12 are further fixed on the lower end face of the base 1, and the insertion ends 12 are opposite to the anti-skid pad 11. The inserting end 12 is inserted into the ground, the connection between the base 1 and the ground is improved through the arrangement of the inserting end 12, the inserting end 12 is arranged below the non-slip mat 11, the pressure is maximum when a user steps on the non-slip mat 11, and the inserting end 12 can be conveniently inserted into soil.

The implementation principle of the embodiment is as follows:

when using this groundwater sampling device, rotate earlier and bore probe rod 3 to sampler body 2 and be close to the lower terminal surface of base 1, then insert sampler body 2 ground to terminal surface and earth's surface parallel and level under with base 1, perhaps earlier the excavation has the foundation ditch that supplies sampler body 2 to insert on ground. After the base 1 is placed on the ground, a user steps on the base 1, and two feet are respectively placed on the two groups of anti-slip pads 11, so that the inserting ends 12 are inserted into the ground, and the base 1 is stable.

Then after the piston pipe is connected with the drilling rod 3 through the fixing piece 44, a user rotates the drilling rod 3 to enable the drilling rod 3 and the sampler body 2 to rotate and move downwards, when the sampler body 2 moves downwards to for a certain depth, the user holds the handle 43 of the piston rod 4 to pull the piston rod 4 upwards, the piston rod 4 drives the sealing piston 41 to ascend, the part of the sealing piston 41 below the sealing piston 41 in the water storage cavity 21 forms negative pressure, and groundwater is pumped into the water storage cavity 21 through the negative pressure, so that groundwater sampling is realized.

And finally, the drilling rod 3 is reversely rotated to separate the drilling rod 3 and the sampler body 2 from the ground, and the piston rod 4 is reversely pushed, so that the underground water in the water storage cavity 21 flows out from the water inlet 22, and the underground water is collected to finish the sampling work of the underground water, so that the method is simple and rapid.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

The underground water sampling device is characterized by comprising a base (1) placed on the ground and a sampler body (2) arranged below the base (1), wherein a vertically arranged drilling rod (3) is connected to the base (1) in a threaded manner, the lower end of the drilling rod (3) penetrates through the base (1) and is fixed to the upper end of the sampler body (2), a water storage cavity (21) is formed in the sampler body (2), the lower end of the sampler body (2) is communicated with the water storage cavity (21) and is provided with a water inlet (22) outside, the water inlet (22) is plugged with a filter screen (23), the drilling rod (3) is arranged in a hollow mode along the axis direction, a piston rod (4) is connected to the drilling rod (3) in a sliding manner, a sealing piston (41) which slides up and down in the water storage cavity (21) is fixed to the lower end of the piston rod (4), and the upper end of the piston rod (4) extends out of.
2. groundwater sampling device according to claim 1, wherein the sampler body (2) is arranged like a cylinder, and the lower end of the sampler body (2) is arranged like a cone.
3. underground water sampling device according to claim 1, wherein the sampler body (2) has self-tapping threads (24) fixed to its outer periphery and screwed into the external threads of the drill rod (3).
4. underground water sampling device according to claim 1, wherein a hand wheel (31) is fixed on the top of the drill rod (3), and the hand wheel (31) and the drill rod (3) rotate coaxially.
5. underground water sampling device according to claim 1, wherein a bearing block (42) is fixed on the top of the piston rod (4), and a handle (43) is fixed on the end of the bearing block (42) far away from the piston rod (4).
6. underground water sampling device according to claim 5, wherein a fixing member (44) is detachably connected between the bearing block (42) and the drill rod (3).
7. groundwater sampling device according to claim 1, wherein the base (1) is provided at its upper end with a non-slip mat (11).
8. groundwater sampling device according to claim 7, wherein a conical insertion end (12) is fixed on the lower end face of the base (1) in a protruding manner, and the insertion end (12) is opposite to the non-slip mat (11).