CN220154004U

CN220154004U - Groundwater sampling device

Info

Publication number: CN220154004U
Application number: CN202320771083.9U
Authority: CN
Inventors: 汪馨竹; 廖梓龙; 张志夫; 刘迪; 于向前; 张燕飞; 杜晓峰; 苗恒录
Original assignee: Institute of Water Resources for Pasteral Area Ministry of Water Resources PRC
Current assignee: Institute of Water Resources for Pasteral Area Ministry of Water Resources PRC
Priority date: 2023-03-21
Filing date: 2023-04-07
Publication date: 2023-12-08
Anticipated expiration: 2033-04-07

Abstract

The utility model discloses a groundwater sampling device, which comprises: the top of the first telescopic rod is connected with the traction rope, and the bottom of the first telescopic rod is provided with a balancing weight; the underground water samplers are arranged in the vertical direction and are all arranged on the first telescopic rod in a sliding mode. According to the utility model, the first extensible and contractible telescopic rod is arranged, the plurality of samplers are slidably arranged on the first extensible rod, the length of the first extensible rod and the relative distance between the plurality of samplers are adjusted according to actual sampling requirements, so that the design requirements of more groundwater sampling are met, and the applicability is higher; furthermore, the plurality of samplers can be stored on the shortened first telescopic rod, and are convenient to store and carry.

Description

Groundwater sampling device

Technical Field

The utility model relates to the technical field of underground water sampling equipment. More particularly, the present utility model relates to an underground water sampling device.

Background

Groundwater is used as an important water source for agricultural irrigation, industrial water and domestic water, and the quality of the groundwater needs to be guaranteed to meet water standards, so that the quality of the groundwater needs to be monitored, the groundwater is usually extracted by using a sampling device, and then various indexes of the extracted groundwater are detected by using detection equipment.

In the prior art, only one sampler is arranged in the underground water sampling device, only one water sample at a depth position can be collected at a time, the working efficiency is lower, aiming at the technical problems, the utility model patent with application number 202022095749.2 discloses an underground water sampling device, which can sample underground water with different depths by arranging a plurality of detachable sampling units, however, in the prior art, the relative position of each sampling unit is fixed, the distance between the sampling units cannot be adjusted according to the needs, and then the water sample at the position with preset depth or preset distance is collected, so that the applicability is lower; in addition, the sampling units are detachably connected, so that the sampling units are connected together too long to be stored or moved conveniently, and the sampling units are detached and stored independently, so that the sampling units are lost.

Disclosure of Invention

It is an object of the present utility model to solve at least the above problems and to provide at least the advantages to be described later.

The utility model also aims to provide a groundwater sampling device, which can adjust the position of each sampler according to the need by sliding a plurality of samplers on a telescopic rod body so as to further meet the requirement of sucking water samples with different depths.

To achieve these objects and other advantages and in accordance with the purpose of the utility model, there is provided a groundwater sampling device including:

the top of the first telescopic rod is connected with the traction rope, and the bottom of the first telescopic rod is provided with a balancing weight;

the underground water samplers are arranged in the vertical direction and are all arranged on the first telescopic rod in a sliding mode.

Preferably, in the groundwater sampling device, the first telescopic rod comprises a plurality of first unit rods which are sequentially sleeved inside and outside along the vertical direction, any two adjacent first unit rods are connected in a sliding manner along the vertical direction, the top of the first unit rod positioned at the outermost part is connected with the traction rope, and the bottom of the first unit rod positioned at the innermost part is connected with the balancing weight;

a through hole extending along the vertical direction is formed in one side of each first unit rod, and a plurality of first saw teeth are formed in one side of the through hole along the vertical direction; all the through holes are correspondingly arranged along the radial direction to form a vertically arranged channel;

one side of each groundwater sampler is horizontally provided with a sliding part accommodated in the channel, and each sliding part is elastically provided with a second saw tooth which can be clamped between any two adjacent first saw teeth.

Preferably, the groundwater sampling device, the balancing weight be the circular cone structure, the inside cavity setting of balancing weight can be used to hold water, the balancing weight bottom is equipped with the electromagnetism water valve.

Preferably, in the groundwater sampling device, the first telescopic rod and the vertical downward projection of the sampler are both accommodated in the vertical downward projection of the balancing weight.

Preferably, in the groundwater sampling device, a plurality of elastic rods are arranged at the circumferential edge of the top of the balancing weight along the circumferential direction at intervals, each elastic rod is horizontally arranged, and the free end of each elastic rod is rotationally provided with a ball.

Preferably, the groundwater sampling device further comprises:

the second telescopic rods are coaxially arranged inside the first telescopic rods and comprise a plurality of second unit rods which are sleeved inside and outside in sequence, the second unit rods arranged at the outermost part are positioned at the uppermost part, the top parts of the second unit rods at the outermost part and the top parts of the first unit rods at the outermost part, and the bottoms of the second unit rods at the innermost part are connected through first connecting rods; the plurality of lantern rings are arranged on the underground water sampler correspondingly, and each lantern ring is arranged on the second telescopic rod in a sliding manner;

the plurality of second connecting rods, a lantern ring corresponds to be provided with a second connecting rod, and the one end and the lantern ring of every second connecting rod are connected, and the other end passes the through-hole along the radial of first telescopic link and is connected with corresponding sliding part.

Preferably, the groundwater sampling device, every sliding part be along first telescopic link radial extension's hollow body structure, every sliding part is inside to be equipped with elastic mechanism, every elastic mechanism includes:

the guide cylinder is horizontally arranged in the sliding part and is vertical to the sliding part, and the second saw teeth are in sliding connection with the guide cylinder;

the iron block is arranged at one end of the second saw tooth far away from the first saw tooth;

the spring is coaxially arranged in the guide cylinder, and two ends of the spring are respectively connected with the inner wall of the guide cylinder and one end of the second saw tooth;

the electromagnet is arranged on the inner wall of the guide cylinder, and the electromagnet and the iron block are correspondingly arranged along the axial direction of the guide cylinder.

Preferably, the groundwater sampling device, each groundwater sampler includes:

a housing, one side of which is connected with the sliding part;

the sample storage barrel is arranged in the shell, and a sampling tap is arranged at the bottom of the sample storage barrel;

one end of the sampling tube is communicated with the sample storage tube, and the other end of the sampling tube extends out of the shell; a miniature water pump is arranged in the middle of the sampling tube;

and the filter tube is vertically arranged, and the top of the filter tube is communicated with the other end of the sampling tube. .

The utility model at least comprises the following beneficial effects:

according to the utility model, the first extensible and contractible telescopic rod is arranged, the plurality of samplers are slidably arranged on the first extensible rod, the length of the first extensible rod and the relative distance between the plurality of samplers are adjusted according to actual sampling requirements, so that the design requirements of more groundwater sampling are met, and the applicability is higher; furthermore, the plurality of samplers can be stored on the shortened first telescopic rod, and are convenient to store and carry.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

FIG. 1 is a schematic view of an underground water sampling device according to an embodiment of the present utility model;

FIG. 2 is a schematic view of an underground water sampling device according to another embodiment of the present utility model;

FIG. 3 is a schematic view of an underground water sampling device according to another embodiment of the present utility model;

FIG. 4 is a cross-sectional view of A-A of FIG. 3;

FIG. 5 is a schematic view showing a structure of a slider in a second saw tooth retracted state according to another embodiment of the present utility model;

FIG. 6 is a schematic view showing a structure of a sliding block in a second saw tooth extending state according to another embodiment of the present utility model;

fig. 7 is a schematic structural diagram of an underground sampler according to another embodiment of the present utility model.

Reference numerals illustrate: 1-a first unit bar; 11-through holes; 12-saw teeth; 13-a fixed block; 2-groundwater sampler; 21-a housing; 22-a cartridge; 23-a tap; 24-sampling tube; 25-a water suction pump; 26-a filter tube; 3-balancing weight; 4-pulling ropes; a 5-slide; 51-second serrations; 6-an elastic rod; 61-balls; 7-a second unit bar; 71-a first connecting rod; 8-collar; 81-a second connecting rod; 91-a guide cylinder; 92-iron block; 93-springs; 94-electromagnet.

Detailed Description

The present utility model is described in further detail below with reference to the drawings and examples to enable those skilled in the art to practice the utility model by referring to the description.

It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

The experimental methods described in the following embodiments are conventional methods unless otherwise indicated, and the reagents and materials are commercially available.

In the description of the present utility model, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present utility model.

As shown in fig. 1 to 7, the present utility model provides a groundwater sampling device, including:

the top of the first telescopic rod is connected with the traction rope, and the bottom of the first telescopic rod is provided with a balancing weight 3; the top of the first telescopic rod is connected with the traction rope through a fixed block 13;

the groundwater sampler 2 is arranged along the vertical direction and is arranged on the first telescopic rod in a sliding manner.

In the technical scheme, the utility model discloses a groundwater sampling device, which comprises a first extensible and contractible telescopic rod, wherein the top of the first extensible rod is connected with a haulage rope of a winch, the bottom of the first extensible rod is provided with a balancing weight, a handle of the winch is rotated to put down the haulage rope, and the first extensible rod moves downwards into a subterranean well under the action of gravity of the balancing weight during sampling; the plurality of groundwater samplers are sequentially arranged on the first telescopic rod in a sliding mode, water samples with different depths can be collected simultaneously, the relative positions of the plurality of groundwater samplers can be flexibly adjusted according to the preset depths, and the use is more convenient.

According to the utility model, the first extensible and contractible telescopic rod is arranged, the plurality of samplers are slidably arranged on the first extensible rod, the length of the first extensible rod and the relative distance between the plurality of samplers are adjusted according to actual sampling requirements, so that the design requirements of more groundwater sampling are met, and the applicability is higher; furthermore, the plurality of samplers can be stored on the shortened first telescopic rod, so that the sampler is convenient to store and carry;

the telescopic handle structure of the folding umbrella in the common general knowledge can be specifically referred to for the telescopic of the first telescopic rod, or the first telescopic rod is designed as an electric telescopic rod; the sliding connection of a plurality of samplers and first telescopic link can be consulted prior art to realize sliding and slide temporary positioning after the position, for example one side of sampler is connected with first telescopic link through the slider, set up one on the slider and stir the piece, stir piece and first telescopic link joint, when needing to slide, press and stir the piece, release the joint of stirring piece and first telescopic link, keep stirring piece and slide the slider relative first telescopic link under the state of pressing, drive the sampler and slide on first telescopic link pole, loosen after sliding in place and stir the piece, stir the piece and rebound automatically and with first telescopic link joint again, realize the temporary positioning to slider, sampler and first telescopic link. The foregoing examples are one implementation, and in practical applications, other implementations may be adopted.

In another technical scheme, the underground water sampling device comprises a plurality of first unit rods 1 which are sequentially sleeved inside and outside along the vertical direction, wherein any two adjacent first unit rods are connected in a sliding manner along the vertical direction, the top of the first unit rod positioned at the outermost part (arranged at the uppermost part) is connected with a traction rope 4, and the bottom of the first unit rod positioned at the innermost part (arranged at the lowermost part) is connected with a balancing weight 3;

a through hole 11 extending in the vertical direction is formed in one side of each first unit bar, and a plurality of first saw teeth 12 are formed in one side of the through hole in the vertical direction; all the through holes are correspondingly arranged along the radial direction to form a vertically arranged channel;

one side of each groundwater sampler is horizontally provided with a sliding part 5 accommodated in the channel, and each sliding part 5 is elastically provided with a second saw tooth 51 which can be clamped between any two adjacent first saw teeth.

As shown in fig. 1, except the uppermost through hole and the lowermost through hole, both ends of the rest through holes are all through, so that all through holes can form a chute with sliding parts sliding and being through along the vertical direction, a plurality of first sawteeth on the side wall of the multi-section chute are correspondingly arranged, and any adjacent two first unit rods are overlapped, and a plurality of corresponding first sawteeth are overlapped along the radial direction; the second saw teeth have a certain width and can cover the first saw teeth of the inner layer and the outer layer, so that the second saw teeth can be selectively clamped on the second saw teeth corresponding to different layers; the first telescopic rods are formed by sequentially sleeving the first unit rods inside and outside, the strip-shaped through holes are formed in the outer wall of each first unit rod, a slide way for sliding of the sliding part is formed, further temporary positioning after the sliding part slides in place is achieved through the arrangement of the plurality of first sawteeth and the second sawteeth, the second sawteeth can be designed into elastic belts in common sense, for example, when the sliding part slides downwards, the second sawteeth are manually stirred, the second sawteeth and the plurality of first sawteeth are mutually noninterfered along the vertical direction, so that the first sawteeth can not block movement of the second sawteeth, the second sawteeth slide downwards on the slide way, further the sliding part and the sampler slide on the first telescopic rods, after the sliding part slides in place, the stirring block is loosened, the second sawteeth are popped up and clamped on the corresponding first sawteeth, temporary positioning after the sampler slides in place is achieved, the first telescopic rods are lifted upwards through the traction ropes, the sampler at the lower part moves upwards relative to the first telescopic rods, the elastic second sawteeth move upwards under the action of elasticity, the first sawteeth move upwards along the sliding parts, the first sawteeth are pulled upwards, the volume of the sampler is reduced, and the sampler is conveniently pulled upwards, the sampler is retracted from the sampling device to the sampling device.

In another technical scheme, groundwater sampling device, balancing weight be the circular cone structure, the inside cavity setting of balancing weight can be used to hold water, the balancing weight bottom is equipped with electromagnetic water valve. The balancing weight is arranged to be of a hollow structure, and before sampling, the gravity of the balancing weight can be increased by injecting water into the balancing weight, so that the first telescopic rod can be conveniently lowered; after the sampling is completed, water inside the balancing weight is discharged through the electromagnetic water valve, the weight of the balancing weight is reduced, the gravity load of the first telescopic rod pulled upwards by the traction rope is reduced, and the first telescopic rod is convenient to lift up from the underground well rapidly.

In another technical scheme, the groundwater sampling device, the vertical downward projections of the first telescopic rod and the sampler are all accommodated in the vertical downward projections of the balancing weights. The counter weight is designed to be larger than the first telescopic rod in circumferential size, so that the sampler at the side part of the first telescopic rod is covered, the counter weight can be used as a counter weight and a guide, and the sampler can be further prevented from colliding with a well wall in the processes of lowering and lifting.

In another technical scheme, in the groundwater sampling device, a plurality of elastic rods 6 are arranged at intervals along the circumferential direction at the circumferential edge of the top of the balancing weight, each elastic rod is horizontally arranged, and the free end of each elastic rod is rotationally provided with a ball 61. The elastic rod is arranged in the circumferential direction of the balancing weight, the elastic rod can stretch out and draw back along the radial direction of the balancing weight, and the ball is arranged at the end part of the elastic rod, so that the periphery of the balancing weight can always be contacted with the inner wall of the well through the elastic rod, and smooth descending and lifting of the sampling device are ensured.

In another technical scheme, the groundwater sampling device further comprises:

the second telescopic rod is coaxially arranged inside the first telescopic rod and comprises a plurality of second unit rods 7 which are sequentially sleeved inside and outside, the second unit rod arranged at the outermost part is positioned at the uppermost part, the top of the second unit rod at the outermost part and the top of the first unit rod at the outermost part, and the bottom of the second unit rod at the innermost part are connected through a first connecting rod 71;

the plurality of lantern rings 8 and the groundwater sampler are correspondingly provided with one lantern ring 8, and each lantern ring 8 is arranged on the second telescopic rod in a sliding manner;

the plurality of second connecting rods 81, a lantern ring 8 is correspondingly provided with a second connecting rod 81, one end of each second connecting rod 81 is connected with the lantern ring 8, and the other end of each second connecting rod penetrates through the through hole along the radial direction of the first telescopic rod and is connected with the corresponding sliding part 5.

In the technical scheme, the second telescopic rod is further arranged in the first telescopic rod, the second telescopic rod stretches along with the first telescopic rod, each sliding part is connected with the second telescopic rod in a sliding mode through the lantern ring and the second connecting rod, the sampler is arranged on one side, away from the first telescopic rod, of the sliding part, the other side, close to the first telescopic rod, of the sliding part is connected with the first telescopic rod through the second connecting rod and the lantern ring, stability of setting of the sliding part is improved, and smoothness of sliding of the sliding part in the sliding groove is guaranteed.

In another technical scheme, groundwater sampling device, every sliding part be along first telescopic link radial extension's hollow body structure, every sliding part is inside to be equipped with elastic mechanism, every elastic mechanism includes:

a guide cylinder 91 horizontally provided in the sliding portion 5 and vertically provided to the sliding portion 5, the second saw teeth 51 being slidably connected to the guide cylinder 91;

an iron block 92 provided at an end of the second saw tooth 51 remote from the first saw tooth 11;

a spring 93 coaxially provided in the guide cylinder 91, both ends of the spring 93 being connected to an inner wall of the guide cylinder 91 and one end of the second saw tooth 51, respectively;

and an electromagnet 94 provided on the inner wall of the guide cylinder 91, the electromagnet 94 and the iron block 92 being provided in correspondence with each other in the axial direction of the guide cylinder 91.

In the technical scheme, the elastic mechanism is arranged on each sliding part to realize the ejection and retraction of the second saw teeth, so that the requirements of sliding and temporary positioning of the sliding parts in the sliding grooves are met, the structure is simple, the design of the electromagnet is adopted, the pulling block is not required to be manually pulled, and time and labor are saved.

Each elastic mechanism comprises a guide cylinder arranged in the sliding part, an iron block arranged on the second saw tooth, a spring connected with the inner wall of the guide cylinder and an electromagnet matched with the iron block, when the second saw tooth needs to stretch out and be clamped on the first saw tooth, the electromagnet is not electrified, the second saw tooth is elastically connected with the guide cylinder through the spring, when the second saw tooth needs to retract and moves the sliding part downwards along the vertical direction, the electromagnet is electrified, the second saw tooth is pulled towards the direction close to the inside of the guide cylinder under the action of the magnetic attraction of the electromagnet, the second saw tooth is retracted into the guide cylinder, and at the moment, the second saw tooth and the first saw tooth do not interfere with each other and can slide (especially move downwards) along the vertical direction, so that the sampler is driven to move.

In another technical scheme, groundwater sampling device, every groundwater sampler includes:

a housing 21, one side of which is connected to the sliding portion 5;

a sample storage barrel 22 arranged in the shell 21, wherein a sampling tap 23 is arranged at the bottom of the sample storage barrel 22;

a sampling tube 24, one end of which communicates with the cartridge 22 and the other end of which extends out of the housing 21; a miniature water pump 25 is arranged in the middle of the sampling tube 24;

a filter tube 26 disposed vertically with its top in communication with the other end of the sampling tube 24.

In the technical scheme, the utility model discloses a concrete structure of the sampler, wherein one side of a shell of the sampler is connected with a sliding part, and in order to be matched with first unit rods of different layers of a first telescopic rod, an elastic gasket with an arc-shaped structure can be arranged on one side of the shell, so that one side of the shell can be matched with the first unit rods to contact, and the stability of the sampler in vertical sliding relative to the first telescopic rod is maintained; a sample storage cylinder for containing a water sample is arranged in the shell, and a sampling tube extending out of the shell sucks the water sample to the sampling tube under the pumping action of a miniature water pump and collects the water sample in the sample storage cylinder; the end part of the sampling tube is provided with the filter tube (the filter screen is arranged in the tube body), so that water samples entering the sampling tube can be filtered, and the phenomenon that impurities such as stones in the water samples enter the sampling tube to damage the miniature water suction pump is avoided.

The number of equipment and the scale of processing described herein are intended to simplify the description of the present utility model. Applications, modifications and variations of the present utility model will be readily apparent to those skilled in the art.

Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims

1. Groundwater sampling device, its characterized in that includes:

2. The groundwater sampling device according to claim 1, wherein the first telescopic rod comprises a plurality of first unit rods which are sequentially sleeved inside and outside along the vertical direction, any two adjacent first unit rods are connected in a sliding manner along the vertical direction, the top of the first unit rod positioned at the outermost part is connected with the haulage rope, and the bottom of the first unit rod positioned at the innermost part is connected with the balancing weight;

3. The groundwater sampling device of claim 2 wherein the weight is of conical configuration, the interior hollow of the weight is configured to hold water, and the bottom of the weight is configured with an electromagnetic water valve.

4. A groundwater sampling device according to claim 3 wherein the first telescopic rod and the vertically downward projection of the sampler are both housed within the vertically downward projection of the counterweight.

5. The groundwater sampling device according to claim 4, wherein the top circumferential edge of the weight is provided with a plurality of elastic rods at intervals along the circumferential direction, each elastic rod is horizontally arranged and the free end is rotatably provided with a ball.

6. The groundwater sampling device of claim 5 further comprising:

7. The groundwater sampling device according to claim 2 wherein each sliding portion is a hollow tube structure extending radially along the first telescopic rod, each sliding portion being internally provided with an elastic mechanism, each elastic mechanism comprising:

8. The groundwater sampling device of claim 1 wherein each groundwater sampler comprises:

a housing, one side of which is connected with the sliding part;

and the filter tube is vertically arranged, and the top of the filter tube is communicated with the other end of the sampling tube.