CN216284500U

CN216284500U - Sampling device for water resource investigation

Info

Publication number: CN216284500U
Application number: CN202122920202.6U
Authority: CN
Inventors: 段满熙; 周凯利; 叶梦远
Original assignee: Hunan Bozi Environmental Technology Consulting Service Co ltd
Current assignee: Hunan Bozi Environmental Technology Consulting Service Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-04-12
Anticipated expiration: 2031-11-26

Abstract

The utility model discloses a sampling device for water resource investigation, which comprises a first sleeve, a third sampling cylinder and a piston rod for sampling, wherein a plurality of sampling pipe fittings are arranged between the first sleeve and the third sampling cylinder, each sampling pipe fitting comprises a first sampling cylinder and a second sampling cylinder, an upper port of the second sampling cylinder is communicated with a lower port of the first sampling cylinder through a second sleeve, an upper port of the first sampling cylinder is communicated with the first sleeve, the second sampling cylinder on the sampling pipe fitting at the bottommost part is communicated with an upper port of the third sampling cylinder through the second sleeve, and two sides of the first sampling cylinder, the second sampling cylinder and the third sampling cylinder are provided with overflow valve ports. This sampling device adopts the mode of negative pressure extraction, extracts the water, is equipped with a plurality of sample pipe fittings on the sampling device, and every sample pipe fitting seals each other and wears to be equipped with a piston rod simultaneously, through the pulling piston rod, can be with in the external rivers suction sample pipe fitting to accomplish the sample extraction of different depth of water positions, convenient operation, swift practicality.

Description

Sampling device for water resource investigation

Technical Field

The utility model relates to a sampling device, in particular to a sampling device for water resource investigation.

Background

With the development of the times, surface water pollution is more and more serious due to the influence of human activities, and the normal production and life of human beings are threatened, so that sampling and water quality analysis are often needed to be carried out on rivers, lakes, discharge ports, monitoring wells and the like. At present, water sample collection mainly includes multiple modes such as artifical handheld, unmanned aerial vehicle or unmanned ship sample, machinery extraction.

When taking a sample to the different degree of depth water of water, adopt the mode of lifting by crane more in the past, sink the sampler into the bottom, sink and come up through the sampler, accomplish the sample to the different degree of depth water. However, most of sampling devices with such a structure are bulky, and are inconvenient to operate, so that the sampling device is not suitable for sampling places with small area. In this regard, improvements are needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sampling device for water resource investigation, which solves the problems in the background technology.

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

a sampling device for water resource investigation comprises a first sleeve, a third sampling cylinder and a piston rod for sampling, wherein a plurality of sampling pipe fittings which are arranged at equal intervals are arranged outside the piston rod between the first sleeve and the third sampling cylinder;

the sampling pipe fitting comprises a first sampling cylinder and a second sampling cylinder, the upper port of the second sampling cylinder is communicated with the lower port of the first sampling cylinder through a second sleeve, the upper port of the first sampling cylinder is communicated with the first sleeve, and the second sampling cylinder on the sampling pipe fitting at the bottommost part is communicated with the upper port of a third sampling cylinder through a second sleeve;

sampling cavities are arranged between the first sampling cylinder and the first sleeve, between the second sampling cylinder and the second sleeve and between the third sampling cylinder and the other second sleeve, and the sampling cavities are communicated with overflowing valve ports arranged on two sides of the first sampling cylinder, the second sampling cylinder and the third sampling cylinder.

Preferably, the piston rod comprises a pull rod, a piston and a sealing ring, the piston is arranged at the upper ports of the first sampling cylinder, the second sampling cylinder and the third sampling cylinder and corresponds to the sealing ring fixed at the lower ports of the first sampling cylinder, the second sampling cylinder and the third sampling cylinder, the piston is sleeved outside the pull rod and is fixedly connected with the pull rod, and the sealing ring is sleeved outside the pull rod and is in sliding fit with the pull rod.

Preferably, the lower end face of the sealing ring is provided with a limiting groove, the center of the limiting groove is provided with a through hole, and the through hole is connected with the outer wall of the pull rod and matched with the pull rod.

Preferably, the outer wall of the piston is in sliding fit with the inner walls of the first sleeve and the second sleeve, a limiting bump is arranged at the joint of the upper end of the piston and the pull rod, and the limiting bump is matched with the limiting groove.

Preferably, the overflowing valve port comprises a water inlet and a water outlet which are arranged at two ends of the first sampling cylinder, the second sampling cylinder and the third sampling cylinder, a one-way valve is arranged in the water inlet, and a stop valve is arranged in the water outlet.

Preferably, check valve and stop valve are installed in water inlet and drain port through the screw thread mode respectively, and the junction of check valve with the water inlet and the junction of stop valve with the outlet all are provided with the sealing washer.

Preferably, one end of the first sleeve, which is far away from the first sampling tube, is provided with a limiting ring, the limiting ring is sleeved outside the pull rod and is matched with the pull rod, and one end of the pull rod penetrates through the limiting ring to be connected with a handle arranged outside the first sleeve.

Compared with the prior art, the utility model has the beneficial effects that: this sampling device adopts the mode of negative pressure extraction, extracts the water, is equipped with a plurality of sample pipe fittings on the sampling device, and every sample pipe fitting seals each other and wears to be equipped with a piston rod simultaneously, through the pulling piston rod, can be with in the external rivers suction sample pipe fitting to accomplish the sample extraction of different depth of water positions, convenient operation, swift practicality.

Drawings

Fig. 1 is a schematic structural diagram of a sampling device for water resource investigation.

FIG. 2 is a schematic view of a sealing ring of a sampling device for water resource investigation.

FIG. 3 is a schematic view of a pull rod of a sampling device for water resource investigation.

FIG. 4 is a schematic structural diagram of a stop valve in a sampling device for water resource investigation.

In the figure: 1. a pull rod; 2. a handle; 3. a limiting ring; 4. a first sleeve; 5. a first sampling cylinder; 6. a second sleeve; 7. a second sampling tube; 8. a third sampling cylinder; 9. a limiting groove; 10. a seal ring; 11. perforating; 12. a piston; 13. a limiting bump; 14. a water inlet; 15. a one-way valve; 16. a water outlet; 17. and a stop valve.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-4, in an embodiment of the present invention, a sampling device for water resource investigation includes a first sleeve 4, a third sampling cylinder 8 and a sampling piston rod, wherein a plurality of sampling pipe fittings arranged at equal intervals are arranged outside the piston rod between the first sleeve 4 and the third sampling cylinder 8; the sampling pipe fitting comprises a first sampling cylinder 5 and a second sampling cylinder 7, the upper port of the second sampling cylinder 7 is communicated with the lower port of the first sampling cylinder 5 through a second sleeve 6, the upper port of the first sampling cylinder 5 is communicated with the first sleeve 4, and the second sampling cylinder 7 on the sampling pipe fitting at the bottommost part is communicated with the upper port of a third sampling cylinder 8 through the second sleeve 6;

sampling cavities are arranged between the first sampling cylinder 5 and the first sleeve 4, between the second sampling cylinder 7 and the second sleeve 6 and between the third sampling cylinder 8 and the other second sleeve 6, and are communicated with overflow valve ports arranged at two sides of the first sampling cylinder 5, the second sampling cylinder 7 and the third sampling cylinder 8; with sampling device immersion water, third sampling tube 8 is in the position of bottommost, each sample pipe fitting is arranged from up in proper order down in water, the piston rod wears to establish first sleeve 4, in third sampling tube 8 and each sample pipe fitting, the pulling piston rod, make piston 12 slide in the sample intracavity on the piston rod, the sample intracavity produces the negative pressure, external rivers can get into first sampling tube 5 through overflowing the valve port this moment, in second sampling tube 7 and the third sampling tube 8, thereby accomplish the sample extraction of different depth of water positions.

The piston rod comprises a pull rod 1, a piston 12 and a sealing ring 10, the piston 12 is arranged at the upper end openings of the first sampling cylinder 5, the second sampling cylinder 7 and the third sampling cylinder 8 and corresponds to the sealing ring 10 fixed at the lower end openings of the first sampling cylinder 5, the second sampling cylinder 7 and the third sampling cylinder 8, the piston 12 is sleeved outside the pull rod 1 and is fixedly connected with the pull rod 1, and the sealing ring 10 is sleeved outside the pull rod 1 and is in sliding fit with the pull rod 1. The end, far away from the first sampling tube 5, of the first sleeve 4 is provided with a limiting ring 3, the limiting ring 3 is sleeved outside the pull rod 1 and is matched with the pull rod 1, and one end of the pull rod 1 penetrates through the limiting ring 3 to be connected with a handle 2 arranged outside the first sleeve 4. The pull rod 1 is pulled upwards, and the pull rod 1 drives the inner walls of the first sleeve 4 and the second sleeve 6 at the upper ports of the first sampling cylinder 5, the second sampling cylinder 7 and the third sampling cylinder 8 to slide upwards, so that air in the sampling cavity is pumped out, and negative pressure is formed in the sampling cavity.

The lower end surface of the sealing ring 10 is provided with a limiting groove 9, the center of the limiting groove 9 is provided with a through hole 11, and the through hole 11 is connected with the outer wall of the pull rod 1 and matched with the pull rod 1. The outer wall of the piston 12 is in sliding fit with the inner walls of the first sleeve 4 and the second sleeve 6, a limiting lug 13 is arranged at the joint of the upper end of the piston 12 and the pull rod 1, and the limiting lug 13 is matched with the limiting groove 9. Piston 12 installs and plays sealed effect at the lower port of first sampling section of thick bamboo 5, second sampling section of thick bamboo 7 and third sampling section of thick bamboo 8, and the spacing groove 9 that piston 12 lower extreme was seted up for cooperate with the spacing lug 13 that sealing ring 10 upper end set up, when sealing ring 10 promoted a take the altitude, spacing lug 13 can penetrate spacing groove 9 in, spacing sealing ring 10 carries on spacingly then.

The overflowing valve port comprises a water inlet 14 and a water outlet 16 which are arranged at two ends of the first sampling cylinder 5, the second sampling cylinder 7 and the third sampling cylinder 8, a one-way valve 15 is arranged in the water inlet 14, and a stop valve 17 is arranged in the water outlet 16. The check valve 15 is one-way stop valve, and rivers can get into in first sampling section of thick bamboo 5, second sampling section of thick bamboo 7 and the third sampling section of thick bamboo 8 through check valve 15, but then can be by 15 inner valve block separation of check valve when going out, and stop valve 17 is ordinary to revolve wrong formula valve soon, through revolving the handle on the stop valve 17 soon, and then opens stop valve 17, and the water of collecting in first sampling section of thick bamboo 5, second sleeve 6 and the third sampling section of thick bamboo 8 can be taken out and inspect.

The check valve 15 and the stop valve 17 are respectively installed in the water inlet 14 and the water outlet 16 in a threaded mode, and sealing rings are arranged at the joint of the check valve 15 and the water inlet 14 and the joint of the stop valve 17 and the water outlet 16. The detachable connection mode is convenient for the workers to replace and maintain the water inlet 14 and the water outlet 16.

The working principle of the utility model is as follows: with sampling device immersion aquatic, third sampling section of thick bamboo 8 is in the position of bottommost, each sample pipe fitting is from up arranging in proper order down in water, upwards stimulate pull rod 1, pull rod 1 drives first sampling section of thick bamboo 5, along first sleeve 4 and the 6 inner walls of second sleeve of edge of second sampling section of thick bamboo 7 and 8 upper end departments of third sampling section of thick bamboo upwards slide, thereby take out sample intracavity air, make the intracavity of taking a sample form the negative pressure, external rivers pass through check valve 15 and get into first sampling section of thick bamboo 5 this moment, in second sampling section of thick bamboo 7 and the third sampling section of thick bamboo 8, thereby accomplish the sample extraction of the different water depth positions, and the operation is convenient, and is fast and practical.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof.

Claims

1. A sampling device for water resource investigation comprises a first sleeve (4), a third sampling cylinder (8) and a piston rod for sampling, and is characterized in that a plurality of sampling pipe fittings which are arranged at equal intervals are arranged outside the piston rod between the first sleeve (4) and the third sampling cylinder (8);

the sampling pipe fitting comprises a first sampling cylinder (5) and a second sampling cylinder (7), the upper port of the second sampling cylinder (7) is communicated with the lower port of the first sampling cylinder (5) through a second sleeve (6), the upper port of the first sampling cylinder (5) is communicated with the first sleeve (4), and the second sampling cylinder (7) on the sampling pipe fitting at the bottommost part is communicated with the upper port of a third sampling cylinder (8) through the second sleeve (6);

sampling cavities are arranged between the first sampling cylinder (5) and the first sleeve (4), between the second sampling cylinder (7) and the second sleeve (6) and between the third sampling cylinder (8) and the other second sleeve (6), and are communicated with overflow valve ports arranged on two sides of the first sampling cylinder (5), the second sampling cylinder (7) and the third sampling cylinder (8).

2. The sampling device for water resource investigation of claim 1, characterized in that, the piston rod includes pull rod (1), piston (12) and sealing ring (10), first sampler barrel (5), second sampler barrel (7) and third sampler barrel (8) up port department is arranged in to piston (12) and corresponds with sealing ring (10) of fixing in first sampler barrel (5), second sampler barrel (7) and third sampler barrel (8) lower port department, piston (12) cover is established outside pull rod (1) and with pull rod (1) fixed connection, sealing ring (10) cover is established outside pull rod (1) and with sliding fit.

3. The sampling device for water resource investigation according to claim 2, characterized in that the lower end surface of the sealing ring (10) is provided with a limiting groove (9), the center of the limiting groove (9) is provided with a through hole (11), and the through hole (11) is connected with the outer wall of the pull rod (1) and is matched with the pull rod (1).

4. The sampling device for water resource investigation according to claim 3, characterized in that the outer wall of the piston (12) is in sliding fit with the inner walls of the first sleeve (4) and the second sleeve (6), a limit bump (13) is arranged at the joint of the upper end of the piston (12) and the pull rod (1), and the limit bump (13) is matched with the limit groove (9).

5. The sampling device for water resource investigation according to claim 1, wherein the overflow valve port comprises a water inlet (14) and a water outlet (16) which are arranged at two ends of the first sampling cylinder (5), the second sampling cylinder (7) and the third sampling cylinder (8), a one-way valve (15) is arranged in the water inlet (14), and a stop valve (17) is arranged in the water outlet (16).

6. The sampling device for water resource investigation according to claim 5, characterized in that the check valve (15) and the stop valve (17) are installed in the water inlet (14) and the water outlet (16) respectively in a threaded manner, and the joints of the check valve (15) and the water inlet (14) and the joints of the stop valve (17) and the water outlet (16) are provided with sealing rings.

7. The sampling device for water resource investigation according to claim 5, characterized in that one end of the first sleeve (4) far away from the first sampling cylinder (5) is provided with a limiting ring (3), the limiting ring (3) is sleeved outside the pull rod (1) and is matched with the pull rod (1), and one end of the pull rod (1) passes through the limiting ring (3) and is connected with the handle (2) arranged outside the first sleeve (4).