CN220380801U

CN220380801U - Portable inspection shaft sampling tool

Info

Publication number: CN220380801U
Application number: CN202321346078.XU
Authority: CN
Inventors: 黄德久; 李志琪
Original assignee: Jiujiang Three Gorges Water Service Co ltd; Yangtze Ecology and Environment Co Ltd
Current assignee: Jiujiang Three Gorges Water Service Co ltd; Yangtze Ecology and Environment Co Ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2024-01-23
Anticipated expiration: 2033-05-30

Abstract

The utility model discloses a portable inspection well sampling tool, which comprises a liquid storage tank, wherein a piston is arranged in the liquid storage tank and is matched with the liquid storage tank piston, a handle is arranged on the piston, a sample injection hose and a sample discharge hose which are communicated with the liquid storage tank are respectively arranged at two sides of the bottom of the liquid storage tank, one-way valves are arranged in the sample injection hose and the sample discharge hose, filter balls are detachably arranged at the tail ends of the sample injection hose, foot pedals are arranged on the liquid storage tank above the sample injection hose and the sample discharge hose, the foot pedals are hinged and matched with the outer wall of the liquid storage tank, negative pressure water taking is completed through the piston, the device is convenient to use and carry, and meanwhile, the hinged foot pedals can help the device to level on uneven ground, so that the device is convenient to use and ensures the sampling efficiency.

Description

Portable inspection shaft sampling tool

Technical Field

The utility model relates to the technical field of sampling, in particular to a portable inspection well sampling tool.

Background

The existing conventional manual sampling tool mainly comprises a cylindrical sample storage tank made of acrylic materials, a rope is hung at the upper end of the cylindrical sample storage tank, the sample storage tank is gently placed in a range of a water sample to be collected underground, the water sample to be collected overflows into the sample storage tank through the gravity of the bottom of the sample storage tank and a one-way valve, after the required capacity is collected, the rope is lifted to the well side or the bank side, a water outlet is formed beside the bottom of the sample storage tank, a pinching valve on a hose of the water outlet is loosened, and the required water sample flows into a sample storage bottle, so that the purpose of collecting the water sample is achieved.

The defects are that: the conventional sampler is more required by environmental limitation, and has higher requirements on space, liquid level depth and water sample flow rate in some inspection wells. In addition, the conventional water quality sampler has high requirements on the manual method of operators, and in some application scenes, such as deeper and far collected water samples, the skill of the operators is a great test, and the capacity of the collected water samples cannot be controlled.

Disclosure of Invention

The utility model aims to provide a portable inspection well sampling tool, which utilizes negative pressure sampling, can stretch a sampling hose into different depths for sampling, is convenient for leveling a liquid storage tank by a hinged pedal, is convenient for the force of negative pressure sampling, and solves the problems that the existing sampling tool is greatly influenced by environment and human factors and causes difficult sampling or large error.

The utility model aims to overcome the defects, and provides a portable inspection well sampling tool which comprises a liquid storage tank, wherein a piston is arranged in the liquid storage tank and is matched with the liquid storage tank piston, a handle is arranged on the piston, a sample injection hose and a sample outlet hose which are communicated with the liquid storage tank are respectively arranged on two sides of the bottom of the liquid storage tank, one-way valves are arranged in the sample injection hose and the sample outlet hose, filter balls are detachably arranged at the tail ends of the sample injection hose, foot pedals are arranged on the liquid storage tank above the sample injection hose and the sample outlet hose, and the foot pedals are hinged and matched with the outer wall of the liquid storage tank.

Preferably, the piston is matched with the liquid storage tank to form a needle tube piston, the piston comprises a piston head and a piston rod arranged in the middle of the top of the piston head, the top of the piston rod is provided with a disc, the handles are respectively arranged on two opposite sides of the disc, and the tail ends of the handles are provided with anti-drop balls.

More preferably, the piston rod is concentric with the piston head and the disc is concentric with the piston rod.

More preferably, the handles are horizontally located on both sides of the disk, and the handles are symmetrical about the disk.

Preferably, the sample feeding hose and the sample discharging hose are symmetrical with respect to the liquid storage tank.

More preferably, a check valve in the sample hose opens from the filter ball side to the reservoir side.

More preferably, the sample outlet hose is detachably connected with a collecting device at one end far away from the liquid storage tank, and a one-way valve in the sample outlet hose is opened from one side of the liquid storage tank to one side of the collecting device.

Preferably, the pedal is symmetrical with respect to the liquid storage tank, and the pedal is hinged with the liquid storage tank through an adjusting convex rod.

More preferably, the foot rest is provided with feet at two corners of the bottom of one side of the foot rest far away from the liquid storage tank, the feet are perpendicular to the foot rest, the feet are symmetrical relative to the foot rest, and the foot rest is matched with the ground support through the feet.

Further, the footing height is not lower than the maximum distance from the ground to the top of the sample outlet hose and from the ground to the top of the sample inlet hose.

The utility model has the beneficial effects that:

according to the utility model, after the piston and the liquid storage tank are matched to form a needle tube piston structure, negative pressure is formed through the extraction handle to sample, the use is convenient, the sample injection hose can be placed into different depths, the pedal is convenient to force, and meanwhile, the liquid storage tank is conveniently leveled between the pedals through hinged matching, so that the device can be used on uneven ground, the sampling applicability is improved, and the sampling efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged schematic view of the utility model at the foot pedal at point A;

FIG. 3 is an enlarged schematic view of the installation of the point B filter ball of the present utility model;

FIG. 4 is an enlarged schematic view of the installation of the check valve at point C of the present utility model;

FIG. 5 is a right side view of the present utility model;

in the figure: 1. a handle; 2. a disc; 3. anti-drop ball; 4. a liquid storage tank; 5. a foot pedal; 6. a sample injection hose; 7. a filter ball; 8. a sample outlet hose; 9. a piston rod; 10. a piston; 11. adjusting the convex rod; 12. a footing; 13. a one-way valve.

Detailed Description

The utility model is described in further detail below with reference to the drawings and the specific examples.

As shown in fig. 1-5, as a preferred embodiment 1, a portable inspection well sampling tool includes a liquid storage tank 4, a piston 10 is disposed in the liquid storage tank 4, and the piston 10 is in piston fit with the liquid storage tank 4, a handle 1 is disposed on the piston 10, two sides of the bottom of the liquid storage tank 4 are respectively provided with a sample injection hose 6 and a sample discharge hose 8 which are communicated with the liquid storage tank 4, check valves 13 are disposed in the sample injection hose 6 and the sample discharge hose 8, a filter ball 7 is detachably disposed at the tail end of the sample injection hose 6, foot pedals 5 are disposed on the liquid storage tank 4 above the sample injection hose 6 and the sample discharge hose 8, and the foot pedals 5 are hinged to the outer wall of the liquid storage tank 4.

Embodiment 1 provides a portable inspection well sampling tool, which utilizes a liquid storage tank 4 and a piston 10 to form piston matching, when a handle 1 is pressed down, a closed space between the piston 10 and the liquid storage tank 4 is compressed to form pressure difference, so that stored liquid tends to enter a sample outlet hose 8 and a check valve 13 is opened, and finally enters a collecting device; when the handle 1 is pulled up, the airtight space between the piston 10 and the liquid storage tank 4 expands to form pressure difference, so that liquid is filtered by the filter ball 7, and then enters the liquid storage tank 4 from the sample injection hose 6 by opening the one-way valve 13, and the extraction efficiency is high; during sampling, a worker stands on the pedal 5, so that the force is conveniently applied, the sampling efficiency is improved, and the hinged pedal 5 can adapt to uneven ground, so that the use is convenient.

The filter ball 7 can change the specification according to the actual condition of the site, plays a certain weight balancing role, and facilitates the sample injection hose 6 to enter a certain depth quickly and smoothly.

As shown in fig. 1 and 5, as a preferred embodiment 2, the piston 10 and the liquid storage tank 4 form a needle tube piston fit, the piston 10 comprises a piston head and a piston rod 9 arranged at the middle position of the top of the piston head, the top of the piston rod 9 is provided with a disc 2, the handles 1 are respectively arranged on two opposite sides of the disc 2, and the tail ends of the handles 1 are provided with anti-drop balls 3. The disc 2 is convenient for the installation of the handle 1 and is used for ensuring the synchronous movement of the handle 1 and the piston rod 9, the piston rod 9 and the piston head synchronously move, liquid enters the liquid storage tank 4 when the handle 1 is pulled up, and the liquid is discharged from the liquid storage tank 4 when the handle is pressed down.

As a preferred embodiment 3, the piston rod 9 is concentric with the piston head and the disc 2 is concentric with the piston rod 9. The stress balance is guaranteed, and the sampling efficiency is improved.

As a preferred embodiment 4, the handles 1 are horizontally located on both sides of the disc 2, and the handles 1 are symmetrical about the disc 2. Ensuring the stress balance.

As shown in fig. 1, 3 and 4, as a preferred embodiment 5, the sample feeding hose 6 and the sample discharging hose 8 are symmetrical with respect to the liquid storage tank 4. The collection device is conveniently arranged and is located at the opposite position to the sampling end.

As a preferred embodiment 6, a check valve 13 in the sample hose 6 is opened from the filter ball 7 side to the reservoir 4 side.

As a preferred embodiment 7, the sample outlet hose 8 is detachably connected with a collecting device at an end far away from the liquid storage tank 4, and a check valve 13 in the sample outlet hose 8 is opened from the liquid storage tank 4 side to the collecting device side.

Embodiments 6 to 7 are used for ensuring that when water is fed, a one-way valve 13 in a sample feeding hose 6 is opened, and a one-way valve 13 in a sample discharging hose 8 is closed, so that liquid is ensured to enter a liquid storage tank 4 in one way and cannot flow out of the sample discharging hose 8; when water is discharged, the one-way valve 13 in the sample feeding hose 6 is closed, and the one-way valve 13 in the sample discharging hose 8 is opened, so that the liquid is only discharged from the sample discharging hose 8 and enters the collecting device.

As shown in fig. 1, 2 and 5, as a preferred embodiment 8, the foot pedal 5 is symmetrical with respect to the liquid storage tank 4, and the foot pedal 5 is hinge-engaged with the liquid storage tank 4 by means of an adjusting lever 11. The pedal 5 is used for a worker to stand, sampling is facilitated, the adjusting protruding rod 11 is used as a hinge piece for realizing hinge of the pedal 5, and the pedal 5 is facilitated to adapt to uneven ground.

As a preferred embodiment 9, the foot rest 5 is provided with a foot 12 at two corners of the bottom of one side far away from the liquid storage tank 4, the foot 12 is perpendicular to the foot rest 5, the foot rest 12 is symmetrical with respect to the foot rest 5, and the foot rest 5 is matched with a ground support through the foot rest 12. The footing 12 is used for supporting the foot pedal 5, and simultaneously forms a space below the foot pedal 5, so that the pipeline can pass through conveniently.

As a preferred embodiment 10, the footing 12 is no lower than the maximum distance from the ground to the top of the sample outlet hose 8 and from the ground to the top of the sample inlet hose 6. Make things convenient for the pipeline to pass through, prevent running-board 5 extrusion pipeline influence sampling efficiency or cause the pipeline damage.

As a preferred embodiment 11, the components of the device are made of polypropylene, the hose is made of silica gel, abrasion resistance and corrosion resistance are realized, the cost is low, the quality is light, and the device is convenient to carry, so that the working efficiency is improved.

The working principle of the utility model is as follows:

placing a sample injection hose 6 and a filter ball 7 in the sampled liquid level, putting down a foot pedal 5, putting a flat sampler, holding handles 1 on two sides with two hands, stepping on the foot pedal 5 by feet, taking the two feet as bottom supporting points, and repeatedly pressing and lifting the two hands up and down to achieve the sampling work; when the handle 1 is held by a sampling operator and lifted upwards, the check valve 13 of the sample outlet hose 8 is in a closed state, at the moment, the inside of the sample storage tank 4 forms a negative pressure state, because of pressure difference, a water sample enters the sample storage tank 4 along the sample inlet hose 6 through the filter ball 7, at the moment, when the handle 1 is lifted to the highest limit position, the handle is pressed downwards in a reciprocating manner, the check valve 13 in the sample inlet hose 6 is in a closed state, the water sample is pressed into the sample outlet hose 8 into the sample storage tank through the piston 10 in the sample storage tank, and the above actions are repeated until the required water sample collection work is completed. During sampling, the pipe orifice of the sample outlet hose 8 is kept in communication with the outside atmosphere, and is not submerged in the water sample.

Claims

1. A portable inspection well sampling tool, which comprises a liquid storage tank (4) and is characterized in that,

be equipped with piston (10) in reservoir (4), and piston (10) and reservoir (4) piston cooperation, be equipped with handle (1) on piston (10), the bottom both sides of reservoir (4) are equipped with respectively with reservoir (4) intercommunication advance appearance hose (6) and play appearance hose (8), advance and all be equipped with check valve (13) in appearance hose (6) and the play appearance hose (8), advance the end detachably of hose (6) and be equipped with filter ball (7), all be equipped with running-board (5) on reservoir (4) that are located appearance hose (6) and play appearance hose (8) top, and running-board (5) are articulated cooperation with reservoir (4) outer wall.

2. A portable manhole sampling tool according to claim 1, characterized in that the piston (10) is in piston engagement with the reservoir (4) to form a needle tube, the piston (10) comprises a piston head and a piston rod (9) arranged at the middle position of the top of the piston head, the top of the piston rod (9) is provided with a disc (2), the handles (1) are respectively arranged on two opposite sides of the disc (2), and the tail ends of the handles (1) are provided with anti-slip balls (3).

3. A portable manhole sampling tool according to claim 2, characterized in that the piston rod (9) is concentric with the piston head, and the disc (2) is concentric with the piston rod (9).

4. A portable manhole sampling tool according to claim 2, characterized in that the handle (1) is horizontally located on both sides of the disc (2), and that the handle (1) is symmetrical with respect to the disc (2).

5. A portable manhole sampling tool according to claim 1, characterized in that the sample introduction hose (6) and the sample discharge hose (8) are symmetrical with respect to the reservoir (4).

6. A portable manhole sampling tool according to claim 5, characterised in that a one-way valve (13) in the sampling hose (6) opens from the filter ball (7) side to the reservoir (4) side.

7. A portable manhole sampling tool according to claim 5, characterized in that the end of the sample outlet hose (8) remote from the reservoir (4) is detachably connected with a collecting device, and a one-way valve (13) in the sample outlet hose (8) is opened from the reservoir (4) side to the collecting device side.

8. A portable manhole sampling tool according to claim 1, characterized in that the foot pedal (5) is symmetrical with respect to the reservoir (4), the foot pedal (5) being in hinged engagement with the reservoir (4) by means of an adjusting lever (11).

9. The portable inspection well sampling tool according to claim 8, wherein the foot rest (5) is provided with a foot rest (12) at two corners of the bottom of one side of the foot rest (5) far away from the liquid storage tank (4), the foot rest (12) is perpendicular to the foot rest (5), the foot rest (12) is symmetrical with respect to the foot rest (5), and the foot rest (5) is matched with a ground support through the foot rest (12).

10. A portable manhole sampling tool according to claim 9, wherein the footing (12) is not lower in height than the maximum distance from the ground to the top of the sample outlet hose (8) and from the ground to the top of the sample inlet hose (6).