CN209432522U - A kind of bottom of bottle influent stream formula water sample acquisition device - Google Patents

Abstract

The utility model belongs to the technical field of water sample collection, and specifically discloses a bottle bottom inflow type water sample collection device, which includes a water storage structure and a water inlet connecting rod structure. The water storage structure includes a barrel-shaped bottle wall, a barrel-shaped The bottom of the bottle wall is sealed and connected to the bottom of the bottle wall and the bottle cap is sealed and connected to the top of the barrel-shaped bottle wall. The cavity formed between the three is used as a water storage chamber. There is a water inlet window on the bottom of the bottle and a bottle cap on the top of the bottle cap plug; the water inlet connecting rod structure is set in the wall of the barrel-shaped bottle, which includes a guide rod, a slip ring, a connecting rod and a bottle bottom seal. The slip ring is connected with the sealing sheet at the bottom of the bottle through the connecting rod, and the sealing sheet at the bottom of the bottle is also connected with the bottom of the bottle. The collection device of the utility model is directly inserted into the water body from the bottom, so that the water sample enters the collection device from the bottom, so as to complete the collection of water samples in a natural state, without strong disturbance and mixing, and can effectively maintain the natural state of the water system stratification effect.

Description

A bottle bottom inflow type water sample collection device

technical field

The utility model belongs to the technical field of water sample collection, and more particularly relates to a bottle bottom inflow type water sample collection device.

Background technique

Water quality is an important evaluation index to measure the quality of the ecological environment, a key factor to ensure the integrity of the ecological system, and is directly related to people's drinking water safety and physical health. Water quality monitoring and analysis is to monitor and determine the types of pollutants in the water body, the concentration of pollutants and the trend of change, as well as to analyze the types of microorganisms and mineral elements in the water system, including unpolluted and polluted natural water, such as rivers, rivers, lakes , sea and groundwater and various industrial drainage, etc., evaluate and analyze the temperature, color, turbidity, pH value, conductivity, suspended solids, dissolved oxygen, chemical oxygen demand, biochemical oxygen demand, heavy metals of water quality Comprehensive indicators such as content and toxicity, as well as microbial species and mineral elements in the water system.

Water sample collection is an important part of water quality monitoring and water quality analysis, and an important prerequisite for the accuracy of analysis and testing and the reliability of evaluation conclusions. In order to ensure the representativeness of water samples, it is necessary to select representative monitoring sections or monitoring points, adopt standardized sampling methods, and use appropriate water sample collectors to collect within a specified period of time. The water system itself is a complex and diverse ecosystem, which contains a variety of biological species and mineral elements, and has a significant layering characteristic. Water at different depths has different biological species distributions and mineral components. In order to accurately analyze the characteristics of the water system, it is necessary to collect water samples with stratified characteristics in the same collection bottle and keep the water samples in the original natural state as much as possible. Selecting a suitable water sample collector is very important to ensure the stability of the water sample. The traditional water sample collection device generally enters the water from the mouth of the bottle. When collecting water samples, it can only collect water samples from a certain area near the mouth of the bottle. When it is necessary to analyze the stratification characteristics of the water system, it is necessary to collect water samples at different depths, and it is easy to form strong disturbances and mix when entering the collection bottle, which cannot effectively maintain the stratification effect in the natural state of the water system, and it is difficult to analyze the water system three-dimensionally comprehensive characteristics.

Utility model content

Aiming at the above defects or improvement needs of the prior art, the utility model provides a bottle bottom inflow type water sample collection device, which is directly inserted into the water body from the bottom, and completes the collection of water samples in a natural state without strong disturbance The mixing occurs, which can effectively maintain the stratification effect in the natural state of the water system, so as to analyze the comprehensive characteristics of the water system three-dimensionally.

In order to achieve the above purpose, the utility model proposes a bottle bottom inflow type water sample collection device, which includes a water storage structure and a water inlet connecting rod structure, wherein:

The water storage structure includes a barrel-shaped bottle wall, a bottle bottom sealedly connected with the bottom of the barrel-shaped bottle wall, and a bottle cap sealedly connected with the top of the barrel-shaped bottle wall, and the cavity formed between the three is used as a water storage chamber for storing For the water sample to be collected, a water inlet window is provided on the bottom of the bottle for the water supply sample to enter the water storage cavity, and a bottle cap plug is arranged above the bottle cap;

The water inlet connecting rod structure is arranged in the wall of the barrel-shaped bottle, which includes guide rods, slip rings, connecting rods and bottle bottom seals arranged in sequence from top to bottom, the upper end of the guide rod passes through the bottle cap, and Attract each other with the bottle cap plug, the lower end is connected with the slip ring, the slip ring is connected with the bottle bottom sealing sheet through the connecting rod, and the bottle bottom sealing sheet is also connected with the bottle bottom for sealing the water inlet window, When the bottle cap plug is pressed down to seal the bottle cap, the guide rod and the slip ring move downwards, so that the bottom sealing sheet is pressed down to seal the water inlet window, and when the bottle cap plug is opened upwards, the guide rod and the slip ring move upward , so that the sealing sheet at the bottom of the bottle is opened upwards, so that the water inlet window is connected with the outside world, and the water sample to be collected enters the water storage chamber through the water inlet window.

As a further preference, it also includes a liquid-filled sealing structure, which includes a one-way valve, a liquid-filling piston and a rubber sealing hose. The barrel-shaped bottle wall is provided with a protruding structure, and the protruding structure is a hollow structure to serve as a filling Liquid channel, the liquid filling piston is inserted into the liquid filling channel from the top of the bottle cap, and a one-way valve reserved hole is opened on the bottom of the bottle, and the one-way valve reserved hole is connected to the liquid filling channel , the one-way valve is installed in the reserved hole of the one-way valve, and forms a sealing surface at the connection between the liquid filling channel and the reserved hole of the one-way valve, and the rubber sealing hose is arranged on the edge of the water inlet window at the bottom of the bottle, And it is connected with the reserved hole of the one-way valve.

As a further preference, the slip ring cooperates with the convex structure inside the wall of the barrel-shaped bottle through the concave arc, so as to prevent the slip ring from rotating in the wall of the barrel-shaped bottle.

As a further preference, the inner edge of the bottle cap is provided with an annular groove, which cooperates with the annular protrusion on the outer edge of the top of the barrel-shaped bottle wall to form a sealing surface, and the bottle cap is provided with a hemispherical concave surface for matching with the bottle cap plug And a through groove for the guide rod to pass through with the hemispherical concave surface.

As a further preference, the bottle cap plug is provided with a convex hemispherical surface, and the convex hemispherical surface cooperates with the hemispherical concave surface on the bottle cap to form a sealing surface.

As a further preference, an annular groove is provided on the inner edge of the bottom of the bottle, which cooperates with the annular protrusion on the outer edge of the bottom of the barrel-shaped bottle wall to form a sealing surface.

Generally speaking, compared with the prior art, the above technical solution conceived by the utility model mainly has the following technical advantages:

1. The utility model adopts a bottle bottom structure with a water inlet window (that is, an open bottle bottom structure), so that the water sample flows in from the bottom of the collection device and fills the collection device in a natural state, and finally closes through the water inlet linkage mechanism The bottom of the bottle is sealed to form a closed space to complete the collection of water samples. The water samples are not disturbed by the flow and mixed to maintain the original natural stratified state.

2. The collection device of this utility model adopts guide rod, slip ring and connecting rod mechanism to control the opening and closing of the sealing sheet, which can realize the effective linkage of the bottle cap plug and the bottle bottom sealing sheet, and open and close at the same time, which is easy to operate.

3. The utility model inserts the collection device vertically from the bottom directly into the water system to collect water samples to keep the water samples in a natural state and avoid disturbance of the water samples. The utility model also designs a liquid-filled sealing structure to enhance the sealing effect.

4. The collection device of the utility model can collect water samples of a certain depth at one time, can analyze the comprehensive characteristics of the water system in a three-dimensional manner, efficiently and quickly analyze the layered characteristics of the water system, and improve the efficiency of water sample detection and analysis.

Description of drawings

Fig. 1 is the front view of the bottle bottom inflow type water sample collection device;

Fig. 2 is the A-A direction sectional view of Fig. 1;

Fig. 3 is the B-B direction sectional view of Fig. 2;

Fig. 4 is the C-C direction sectional view of Fig. 1;

Fig. 5 is a partial diagram at E place of Fig. 3;

Fig. 6a is the assembly front view of slip ring, connecting rod, bottle bottom sealing sheet and bottle bottom;

Figure 6b is an assembly top view of the connecting rod, the bottom sealing sheet and the bottom of the bottle;

Figure 7a is a front view of the slip ring;

Figure 7b is a top view of the slip ring;

Figure 8a is a side sectional view of the bottle cap;

Figure 8b is a main sectional view of the bottle cap;

Figure 9a is a bottom view of the bottle cap stopper;

Fig. 9b is a front sectional view of the bottle cap stopper.

In the figure, 1-bottle bottom, 2-bottle bottom seal, 3-connecting rod, 4-slip ring, 5-barrel bottle wall, 6-guide rod, 7-bottle cap, 8-bottle cap plug, 9- Filling piston, 10-rubber sealing hose, 11-one-way valve core, 12-one-way valve spring, 13-one-way valve cover.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute conflicts with each other.

As shown in Figure 1, a bottle bottom inflow water sample collection device provided by the embodiment of the present invention includes a water storage structure and a water inlet connecting rod structure, wherein the water storage structure includes a barrel-shaped bottle wall 5, and The bottle bottom 1 that is sealed and connected with the bottom of the barrel-shaped bottle wall 5 and the bottle cap 7 that is sealed and connected with the top of the barrel-shaped bottle wall 5, the cavity formed between the bottom of the bottle 1, the barrel-shaped bottle wall 5 and the bottle cap 7 serves as a storage tank. The water chamber is used to store the water samples to be collected, and a plurality of water inlet windows are provided on the bottom of the bottle 1 for the water supply samples to enter the water storage chamber, and a bottle cap plug 8 is arranged above the bottle cap 7; Inside the barrel-shaped bottle wall 5, it includes a guide rod 6, a slip ring 4, a connecting rod 3 and a bottle bottom sealing piece 2 arranged in sequence from top to bottom. The upper end of the guide rod 6 passes through the bottle cap 7 and connects with the bottle cap plug 8 attract each other, the lower end of the guide rod 6 is connected with the slip ring 4, the slip ring 4 is connected with the bottle bottom sealing sheet 2 through the connecting rod 3, and the bottom of the bottle bottom sealing sheet 2 is also connected with the bottle bottom 1 for Seal the water inlet window. When the bottle cap plug 8 is pressed down to seal with the bottle cap 7, the guide rod 6 and the slip ring 4 move downward, so that the bottle bottom sealing sheet 2 is pressed down to seal the water inlet window. When the bottle cap plug 8 When opening upwards, the guide rod 6 and the slip ring 4 move upwards, so that the sealing sheet 2 at the bottom of the bottle is opened upwards, so that the water inlet window is connected with the outside world, and the water sample to be collected enters the water storage chamber through the water inlet window.

Specifically, in order to enhance the sealing effect, a liquid-filled sealing structure is also provided in the bottom-flowing water sample collection device, which includes a one-way valve, a liquid-filling piston 9 and a rubber sealing hose 10, wherein the barrel-shaped The bottle wall 5 is provided with a protruding structure, the protruding structure is a hollow structure as a liquid filling channel, the liquid filling channel is filled with liquid, and the liquid filling piston 9 is inserted into the liquid filling channel from the top of the bottle cap 7 Inside, there is a reserved hole for a one-way valve on the bottom 1 of the bottle, the reserved hole for the one-way valve is connected with the liquid filling channel, and the one-way valve is installed in the reserved hole for the one-way valve so that the liquid filling channel It is connected or closed to the reserved hole of the valve, while the rubber sealing hose 10 is directly bonded to the edge of the water inlet window at the bottom of the bottle by high-performance glue, and is connected to the reserved hole of the one-way valve.

Further, the one-way valve includes a one-way valve core 11, one-way valve spring 12 and one-way valve cover 13, and the upper end of the one-way valve core 11 forms a sealing surface at the connection between the one-way valve reserved hole and the liquid filling channel. , the lower end of the one-way valve core 11 is connected with the one-way valve spring 12, and the one-way valve spring 12 is connected with the one-way valve cover 13, and the upper end of the one-way valve core 11 is pressed on the The connection between the reserved hole of the one-way valve and the liquid-filled channel is sealed so that the liquid-filled channel and the reserved hole of the one-way valve are not connected, and the one-way valve core 11 and the one-way valve are connected through the one-way valve cover 13. The spring 12 is assembled in the reserved hole of the one-way valve at the bottom of the bottle. The one-way valve cover 13 is provided with a liquid discharge hole, and a sealing plug is plugged in the liquid discharge hole. By opening the sealing plug, the rubber sealing hose 10 And the liquid in the reserved hole of the one-way valve is discharged. After the water sample is collected, the liquid filling piston 9 is pressed down to increase the liquid pressure in the liquid filling channel, and the one-way valve core 11 moves downward under the action of the liquid to make the liquid filling channel conduct with the reserved hole of the one-way valve. The liquid in the liquid filling channel enters the rubber sealing hose 10 through the reserved hole of the one-way valve to realize liquid filling, and the rubber sealing hose gradually expands to compress the sealing sheet and the bottom frame of the bottle to enhance the sealing effect. After the rubber sealing hose expands , Stop pressing down on the filling piston 9, and the one-way valve core 11 re-seals the connection between the reserved hole of the one-way valve and the filling channel under the action of the one-way valve spring 12.

Furthermore, the bottle bottom 1 is specifically a cross-shaped skeleton structure with a fan-shaped window, forming an open bottle bottom. It is made of hydrophobic polymer materials with self-cleaning performance and corrosion resistance, so as to avoid damage to the water sample collection. It forms a sealing surface with the bottle bottom sealing sheet to form a closed bottle bottom structure.

As shown in Figure 1-5, the bottle cap plug 8, the bottle cap 7, the barrel-shaped bottle wall 5 and the bottle bottom seal 2 form an open inflow channel that can be opened and closed freely, so as to realize inflow from the bottom and reduce water flow interference The probability of mixing with water samples effectively ensures the natural properties of collected water samples and improves the integrity and accuracy of water sample analysis. The bottle cap plug 8 and the bottle bottom sealing sheet 2 form a linkage mechanism through the push rod 6, the slip ring 4 and the connecting rod 3, realizing the linkage between the bottle cap plug 8 and the bottle bottom sealing sheet 2, ensuring that the bottle cap plug 8 and the bottle bottom sealing sheet 2 Open and close at the same time, simplify the operation steps and improve the sampling efficiency. The barrel-shaped bottle wall 5 is made of transparent glass, and a circular liquid filling channel and a set of one-way valves are arranged on the inner side. When the liquid filling piston 9 moves down, the one-way valve opens to fill the rubber sealing hose 10. When the liquid filling piston 9 moves up, the one-way valve is closed, so that the liquid enters the liquid filling channel so as to be filled into the rubber sealing hose 10 again. After the sampling is completed, fill the rubber sealing hose with liquid through the filling piston 9 and the one-way valve so that the rubber sealing hose expands and compresses the sealing sheet to improve the sealing effect.

Figures 6a-6b are the assembly front view and top view of the slip ring, connecting rod, bottle bottom seal and bottle bottom respectively. When the bottle cap plug 8 is closed, the slip ring 4 moves downward under the push of the guide rod 6, and the bottle bottom is sealed. The sheet 2 closes tightly to the bottom of the bottle to seal the water inlet window; when the bottle cap plug 8 is opened, the slip ring 4 moves upwards driven by the guide rod 6, and at the same time the sealing sheet 2 at the bottom of the bottle is opened under the action of the connecting rod 3 to enter The water window is connected to the outside, so that the water sample enters the collection device from the bottom. The inner edge of the bottom 1 of the bottle is provided with an annular groove, which cooperates with the outer edge of the outer edge of the barrel-shaped bottle wall 5 to form a sealing surface. Specifically, the water inlet window is preferably fan-shaped, and a rubber sealing hose 10 is arranged around the fan-shaped window. When filling liquid, the rubber sealing hose expands and compresses the sealing sheet to enhance the sealing effect. When discharging liquid, the rubber sealing hose shrinks to facilitate sealing of the sealing sheet. open.

Figures 7a-7b are the front view and top view of the slip ring respectively. The external shape of the slip ring 4 is adapted to the internal shape of the barrel-shaped bottle wall, and the concave arc is matched with the inner and outer convex parts of the barrel-shaped bottle wall to avoid slipping. Ring 4 rotates in the barrel wall. The slip ring 4 is connected to the bottle cap plug 8 through the guide rod 6, and connected to the bottle bottom sealing sheet 2 through the connecting rod 3, and freely slides up and down inside the barrel-shaped bottle wall, so that the bottle cap plug 8 and the bottle bottom sealing sheet 2 are linked.

Figures 8a-8b are the side sectional view and the main sectional view of the bottle cap, respectively. The inner edge of the bottle cap 7 is provided with an annular groove, which cooperates with the annular protrusion on the outer edge of the bottom of the barrel-shaped bottle wall 5 to form a sealing and knocking surface. The bottle cap 7 Also offer a hemispherical concave surface and a through groove on the top, the hemispherical concave surface and the convex hemispherical surface of the bottle cap plug 8 form a sealing surface, the through groove and the hemispherical concave surface are connected, and are used for the guide rod 6 to pass through. Two bosses are provided for installing the bottle cap stopper 8 .

Figures 9a-9b are the bottom view and the main cross-sectional view of the bottle cap plug respectively. Specifically, the upper end of the guide rod 6 is made into a hemispherical surface, and the hemispherical surface passes through the convex hemispherical surface of the bottle cap 7 and the bottle cap plug 8 to form a spherical high pair, both of which are magnetic, so that they are attracted to each other and can slide relative to each other .

Below is a brief description of the working process of the bottle bottom inflow type water sample collection device of the present invention, which specifically includes the following steps:

(1) Before sampling, release the liquid in the rubber sealing hose, so that the rubber sealing hose shrinks, so that the sealing sheet 2 at the bottom of the bottle is opened;

(2) Open the bottle cap plug 8, the slip ring 4 moves upward under the drive of the bottle cap plug 8 and the guide rod 6, and opens the bottle bottom sealing sheet 2 through the action of the connecting rod 3 to form an open fluid passage;

(3) Insert the wall of the barrel-shaped bottle vertically into the water sample from the bottom, and the water sample enters the water storage chamber from the bottom of the bottle. The plug 8 presses the guide rod 6 to push the slip ring 4 to move downward, and closes the bottle bottom sealing sheet 2 through the connecting rod 3, so that the bottle bottom sealing sheet 2 is close to the bottle bottom 1, forming a closed sampling space;

(4) Push the liquid filling piston 9 to move the one-way valve core 11 downward, the liquid filling channel is connected with the reserved hole of the one-way valve, and the liquid in the liquid filling channel enters the rubber sealing hose through the reserved hole of the one-way valve for The rubber sealing hose expands and presses the sealing sheet 2 at the bottom of the bottle to form a sealing surface to form a complete closed space and complete the water sample collection;

(5) Take out the collection device and end the sampling.

The utility model utilizes the structure of the bottle bottom 1 and the bottle cap 7 which can be freely opened and closed to realize the collection function of the water sample from the bottom of the collection device and ensure that the water sample is not disturbed by the collection device and enters the collection device in a natural state , to avoid strong mixing of water samples and effectively maintain the stratified characteristics of the water system. The utility model can be used as a general water sample collection device for water sample collection.

Those skilled in the art can easily understand that the above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model, etc. , should be included within the protection scope of the present utility model.

Claims (6)

1. A bottle bottom inflow type water sample collection device is characterized in that it comprises a water storage structure and a water inlet connecting rod structure, wherein: The water storage structure comprises a barrel-shaped bottle wall (5), a bottle bottom (1) sealingly connected to the bottom of the barrel-shaped bottle wall (5), and a bottle cap (7) sealingly connected to the top of the barrel-shaped bottle wall (5), The cavity formed between the three is used as a water storage cavity for storing water samples to be collected, and a water inlet window is provided on the bottom of the bottle (1) for supplying water samples into the water storage cavity, and the bottle cap ( 7) A bottle cap plug (8) is arranged above; The water inlet connecting rod structure is located in the barrel-shaped bottle wall (5), and it includes guide rods (6), slip rings (4), connecting rods (3) and bottle bottom seals ( 2), the upper end of the guide rod (6) passes through the bottle cap (7), and is attracted to the bottle cap plug (8), and the lower end is connected with the slip ring (4), and the slip ring (4) passes through the The above-mentioned connecting rod (3) is connected with the bottle bottom sealing sheet (2), and the bottle bottom sealing sheet (2) is also connected with the bottle bottom (1) to seal the water inlet window. When the bottle cap plug (8) is lowered When the pressure is sealed with the bottle cap (7), the guide rod (6) and the slip ring (4) move downward, so that the sealing piece (2) at the bottom of the bottle is pressed down to seal the water inlet window, and when the bottle cap plug (8) is upward When it is opened, the guide rod (6) and the slip ring (4) move upwards, so that the sealing piece (2) at the bottom of the bottle opens upwards, so that the water inlet window is connected with the outside world, and the water sample to be collected enters the storage tank through the water inlet window. in the water cavity. 2. The inflow type water sample collection device at the bottom of the bottle as claimed in claim 1, further comprising a liquid-filled sealing structure comprising a one-way valve, a liquid-filling piston (9) and a rubber sealing hose (10 ), the barrel-shaped bottle wall (5) is provided with a protruding structure, the protruding structure is a hollow structure as a liquid filling channel, and the liquid filling piston (9) is inserted from the top of the bottle cap (7) Installed in the liquid filling channel, the bottom of the bottle (1) is provided with a one-way valve reserved hole, the one-way valve reserved hole is connected with the liquid filling channel, and the one-way valve is installed on the one-way valve pre-installed The sealing surface is formed at the part connected with the liquid filling channel and the reserved hole of the one-way valve. The hole conducts. 3. The bottle bottom inflow type water sample collection device according to claim 2, characterized in that, the slip ring (4) cooperates with the convex structure inside the barrel-shaped bottle wall (5) through a concave arc , to prevent the slip ring (4) from rotating in the barrel wall (5). 4. The bottle bottom inflow type water sample collection device as claimed in claim 1, characterized in that, the inner edge of the bottle cap (7) is provided with an annular groove, and the outer edge of the barrel-shaped bottle wall (5) top is The ring-shaped protrusion cooperates to form a sealing surface, and the bottle cap (7) is provided with a hemispherical concave surface for cooperating with the bottle cap plug (8) and a channel leading through the hemispherical concave surface for the guide rod (6) to pass through. groove. 5. The bottle bottom inflow type water sample collection device as claimed in claim 4, characterized in that, said bottle cap plug (8) is provided with a convex hemispherical surface, and the convex hemispherical surface and the bottle cap (7) The hemispherical concavity cooperates to form the sealing surface. 6. The bottle bottom inflow type water sample collection device as claimed in claim 1, characterized in that, the inner edge of the bottom of the bottle (1) is provided with an annular groove, and the outer edge of the bottom of the barrel-shaped bottle wall (5) is The annular protrusion cooperates to form a sealing surface.