Sampling equipment for water conservancy detection

Abstract

The utility model discloses sampling equipment for water conservancy detection, which comprises a liquid sampling tank, the lower end of the liquid sampling tank is fixedly connected with an air bag, the middle of the lower end of the air bag is fixedly connected with a gravity block, one side of the lower end of the air bag is provided with an inflation nozzle, and the upper end of the liquid sampling tank is in threaded connection with a tank cover. A water inlet penetrates through the middle of the upper end of the tank cover, a water inlet pipe is connected to the middle of the lower end of the tank cover, and a connecting frame is fixedly connected to the position, close to the middle, in the liquid sampling tank. The sampling device has the advantages that the air bag and the liquid sampling tank are placed in a water body to be sampled, the lower end of the air bag is fixedly connected with the gravity block, and the gravity centers of the whole air bag and the liquid sampling tank face the lower end, so that the whole liquid sampling tank can float in the water body due to the arrangement of the air bag; therefore, the whole liquid sampling tank is prevented from sinking to the water bottom, and sludge and other impurities at the water bottom are prevented from entering the liquid sampling tank.

Description

TECHNICAL FIELD

[0001] The utility model relates to sampling equipment, especially a sampling equipment for water conservancy detection. BACKGROUND

[0002] The sampling equipment for water conservancy detection, also known as a water sample bottle type sampling device, can realize various sampling modes such as quantitative sampling, timed quantitative sampling, and timed flow proportional sampling according to water sampling requirements. It is suitable for scientific monitoring of rivers, lakes, and enterprise discharge water, and helps to understand the pollution and ecological health of water bodies.

[0003] However, the sampling equipment in the prior art is immersed in the water body to be sampled for sampling. Since the gravity of the sampling equipment itself may be too heavy, the sampling equipment may enter the bottom of some water conservancy facilities, which may cause some silt at the bottom of the water conservancy facilities to enter the sampling equipment. After the silt and other impurities enter the sampling equipment, the subsequent detection equipment may deviate from the detection of the water body. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to provide a sampling equipment for water conservancy detection,

[0005] In order to solve the above technical problem, the technical scheme of the utility model is as follows:

[0006] A sampling equipment for water conservancy detection, comprising a liquid sampling tank, a gas bag is fixedly connected to the lower end of the liquid sampling tank, a gravity block is fixedly connected to the middle of the lower end of the gas bag, a gas inlet is arranged on one side of the lower end of the gas bag, a tank cover is threadedly connected to the upper end of the liquid sampling tank, a water inlet is arranged in the middle of the upper end of the tank cover, a water inlet pipe is connected to the middle of the lower end of the tank cover, a connecting frame is fixedly connected to the inner side of the liquid sampling tank near the middle, and through holes are arranged in the connecting frame.

[0007] Preferably, a limiting frame is fixedly connected to the upper end of the connecting frame, an inner cavity is arranged in the limiting frame, a spring is connected to the bottom of the inner cavity, a movable block is connected to the upper end of the spring, and a rubber sheet is attached to the upper end of the movable block.

[0008] Preferably, a water inlet pipe is fixedly connected to the lower end of the water inlet, and a groove is arranged in the lower end of the water inlet pipe.

[0009] Preferably, the rubber sheet on the upper end of the movable block is extruded into the groove in the lower end of the water inlet pipe.

[0010] Preferably, the movable block moves vertically in the inner cavity, and the side end wall in the inner cavity and the inner wall of the inner cavity are in contact.

[0011] Preferably, connecting plates are fixedly connected to both sides of the upper end of the can lid.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. The entire airbag and liquid sampling container are placed in the water body to be sampled. The lower end of the airbag is also fixedly connected to a gravity block. The center of gravity of the entire airbag and liquid sampling container is facing downwards. The gravity block makes the airbag face downwards and the liquid sampling container face upwards. The water inlet at the middle of the top of the container cover faces upwards. The airbag design allows the entire liquid sampling container to float in the water body, thereby preventing the entire liquid sampling container from sinking to the bottom and preventing impurities such as silt from entering the liquid sampling container, thus ensuring the accuracy of water sampling.

[0014] 2. As the liquid sampling tank gradually fills with water, the pressure difference between the inside and outside of the tank gradually decreases. The water pressure then stops pressing on the movable block and rubber sheet. At this point, the tension of the spring inside the cavity pushes the movable block upward, allowing the rubber sheet at the top of the movable block to contact and adhere to the inner end of the groove. Ultimately, the movable block and rubber sheet block the lower end of the water inlet pipe, preventing external water from entering the liquid sampling tank, thus achieving automatic shut-off. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0016] Figure 2 This is a front sectional view of the entire utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0018] Figure 4 This is a frontal sectional enlarged view of the present invention in use.

[0019] In the diagram: 1. Airbag; 2. Liquid sampling container; 3. Canister lid; 4. Connecting plate; 5. Water inlet; 6. Gravity block; 7. Water inlet pipe; 8. Movable block; 9. Limiting frame; 10. Connecting frame; 11. Through hole; 12. Groove; 13. Rubber sheet; 14. Inner cavity; 15. Spring; 16. Inflation nozzle. Detailed Implementation

[0020] The specific embodiments of the utility model will be further described below with reference to the drawings. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation on the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] As Figure 1 Indicated, a kind of sampling equipment for water conservancy detection of the utility model, including liquid sampling tank 2, the lower end of liquid sampling tank 2 is fixedly connected with air bag 1, air bag 1 lower end middle is fixedly connected with gravity block 6, one side of air bag 1 lower end is equipped with inflation mouth 16, the upper end of liquid sampling tank 2 is connected with tank cover 3 by screw thread, both sides of tank cover 3 upper end are fixedly connected with connecting plate 4, the upper end of connecting plate 4 can be connected with external tether, user can utilize tether to pull the whole air bag 1 and liquid sampling tank 2, and then the whole air bag 1 and liquid sampling tank 2 are put into the water needing sampling.

[0022] As a preferred technical solution of the embodiment, as Figure 2 And Figure 3 Indicated, water inlet 5 is arranged in the middle of the upper end of tank cover 3, water inlet pipe 7 is connected to the middle of the lower end of tank cover 3, connecting frame 10 is fixedly connected to the inside of liquid sampling tank 2 close to the middle, through holes 11 are arranged in the two sides of connecting frame 10, and the inside of connecting frame 10 is divided into upper and lower parts, and the upper and lower parts of the inside of liquid sampling tank 2 are connected through the through holes 11 in the two sides of connecting frame 10.

[0023] In the embodiment, the upper end of connecting frame 10 is fixedly connected with limiting frame 9, the inside of limiting frame 9 is provided with inner cavity 14, the bottom end of the inside of inner cavity 14 is connected with spring 15, the upper end of spring 15 is connected with movable block 8, the upper end of movable block 8 is adhered with rubber sheet 13, rubber sheet 13 is made of rubber material, so that after movable block 8 moves upward, the whole rubber sheet 13 is pressed into groove 12 at the lower end of water inlet pipe 7, so that rubber sheet 13 can be attached to the inner wall of groove 12, to automatically seal the lower end of water inlet pipe 7.

[0024] The lower end of water inlet 5 is fixedly connected with water inlet pipe 7, groove 12 is arranged at the lower end of water inlet pipe 7, rubber sheet 13 at the upper end of movable block 8 is pressed into groove 12 at the lower end of water inlet pipe 7, movable block 8 moves vertically in inner cavity 14, the side end wall in the inside of inner cavity 14 is attached to the inner wall of inner cavity 14, so that the two ends of movable block 8 can be attached to the two sides in the inside of limiting frame 9, to improve the stability of movable block 8 moving vertically in inner cavity 14.

[0025] As a preferred technical solution of the embodiment, as Figure 4As shown, first, the air pump is connected with the air bag 1 through the inflation nozzle 16, so that the air pump inflates the air bag 1, and the inflated air bag 1 has a volume greater than that of the liquid sampling tank 2.

[0026] Next, the whole air bag 1 and the liquid sampling tank 2 are placed into the water body to be sampled, wherein the lower end of the air bag 1 is further fixedly connected with the gravity block 6, the center of gravity of the whole air bag 1 and the liquid sampling tank 2 is towards the lower end, and the setting of the gravity block 6 makes the direction of the air bag 1 downwards and the direction of the liquid sampling tank 2 upwards, and the water inlet 5 at the upper end of the tank cover 3 is towards the upper side, so that the setting of the air bag 1 makes the whole liquid sampling tank 2 float in the water body, thereby avoiding the whole liquid sampling tank 2 sinking into the bottom of the water body, and further avoiding the impurities such as silt at the bottom of the water body entering the inside of the liquid sampling tank 2, and ensuring the accuracy of the water sampling of the liquid sampling tank 2.

[0027] Then, the external liquid enters the inside of the liquid sampling tank 2 through the water inlet 5 and the water inlet pipe 7, and the pressure of the water body presses the movable block 8 and the rubber sheet 13 downwards, thereby pressing the stretching elastic force of the spring 15, and the setting makes the whole spring 15 contract, so that the rubber sheet 13 at the upper end of the movable block 8 is separated from the groove 12, and the water gradually flows into the upper part of the liquid sampling tank 2 through the water inlet pipe 7, and then gradually flows into the lower part of the liquid sampling tank 2 through the through hole 11 on the surface of the connecting frame 10.

[0028] When the water inside the liquid sampling tank 2 is gradually filled, the pressure difference between the inside of the liquid sampling tank 2 and the outside gradually decreases, and the pressure of the water body no longer presses the movable block 8 and the rubber sheet 13, so that the stretching elastic force of the spring 15 in the inner cavity 14 pushes the movable block 8 upwards, thereby making the rubber sheet 13 at the upper end of the movable block 8 contact and fit with the inner end of the groove 12, and finally the movable block 8 and the rubber sheet 13 block the lower end of the water inlet pipe 7, thereby avoiding the water body outside entering the liquid sampling tank 2, so as to achieve the purpose of automatic closing.

[0029] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and still fall within the protection scope of the present application.

Claims

1. A sampling device for water conservancy testing, comprising a liquid sampling tank (2), characterized in that: An air bladder (1) is fixedly connected to the lower end of the liquid sampling container (2). A gravity block (6) is fixedly connected to the middle of the lower end of the air bladder (1). An inflation nozzle (16) is provided on one side of the lower end of the air bladder (1). A can lid (3) is connected to the upper end of the liquid sampling container (2) by a thread. A water inlet (5) is provided through the middle of the upper end of the can lid (3). A water inlet pipe (7) is connected to the middle of the lower end of the can lid (3). A connecting frame (10) is fixedly connected to the inside of the liquid sampling container (2) near the middle. Through holes (11) are provided on both sides of the connecting frame (10).

2. The sampling device for water conservancy testing according to claim 1, characterized in that: The upper end of the connecting frame (10) is fixedly connected to a limiting frame (9). The limiting frame (9) has an inner cavity (14). The bottom end of the inner cavity (14) is connected to a spring (15). The upper end of the spring (15) is connected to a movable block (8). The upper end of the movable block (8) is attached with a rubber sheet (13).

3. A sampling device for water conservancy testing according to claim 2, characterized in that: The lower end of the water inlet (5) is fixedly connected to a water inlet pipe (7), and the lower end of the water inlet pipe (7) is provided with a groove (12).

4. A sampling device for water conservancy testing according to claim 3, characterized in that: The rubber sheet (13) at the upper end of the movable block (8) is pressed into the groove (12) at the lower end of the water inlet pipe (7).

5. A sampling device for water conservancy testing according to claim 4, characterized in that: The movable block (8) moves vertically inside the inner cavity (14), and the side wall inside the inner cavity (14) and the inner wall of the inner cavity (14) are in contact and fit together.

6. A sampling device for water conservancy testing according to claim 1, characterized in that: Both sides of the upper end of the can lid (3) are fixedly connected to connecting plates (4).

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