CN108593351A - A kind of novel water sample acquisition device and water sampling depth adjustment method - Google Patents

Abstract

The invention discloses a kind of novel water sample acquisition device and water sampling depth adjustment methods.The water sample acquisition device includes several X-type pipe fitting units；Each X-type pipe fitting unit includes two collection tubes being rotatedly connected；The head end of adjacent X-tube part unit is connected with tail end by hose.The present invention utilizes the diamond shape stretching structure formed between X-type pipe fitting unit and adjacent pipe sections unit, and sampling apparatus volume can be effectively ensured will not the lower water buoyancy of excessive and reduction.

Description

Novel water sample collection device and water sample collection depth adjustment method

technical field

The invention relates to a water sample collection device.

Background technique

Water quality testing needs to collect water at different depths as analysis samples. At present, some detection devices using vertical collection tubes collect water samples through lifting collection tubes. Since the vertical collection tubes cannot be contracted, they are long in length. On the device, the volume of the detection device will become larger and the manufacturing cost will be increased. There are also some spiral collection tubes, which can reduce the volume of the detection device, but under the spiral structure, the collection tube will be deep into the water, and there will be greater buoyancy. Therefore, how to design a collection tube that can not only reduce the design volume of the detection device but also reduce the buoyancy has become a difficult problem.

For example, in an environment-friendly water sample collection robot disclosed in Chinese patent CN107238514A, the water sample collection tube (icon number 901) in the water sample collection device used in it is curved, and has a large buoyancy when it is launched into the water, making it inconvenient to operate.

Contents of the invention

The object of the present invention is to solve the defects in the prior art, and provide a water sample collection device that is convenient to shrink and has low buoyancy.

In order to achieve the above object, the present invention provides a novel water sample collection device, which includes several X-shaped pipe fitting units; each X-shaped pipe fitting unit includes two collection tubes connected in rotation; the head end and tail end of adjacent X pipe fitting units Connected by hose.

Further, each X-shaped pipe fitting unit also includes a cross-connection structure, and the middle parts of the two collection tubes are rotatably connected through the cross-connection structure.

Further, the two collection tubes constituting each X-shaped pipe fitting unit are of the same size, and are rotationally connected at the center of the length through a corresponding cross-connection structure.

Further, the above-mentioned cross-connection structure includes two connection boxes: the I tube connection box and the II tube connection box; the I tube connection box and the II tube connection box are respectively provided with intubation holes, and the two collection tubes of the X-type pipe fitting unit are respectively Pass through the intubation hole of the corresponding connection box; there is a bearing hole on the I tube connection box, and the bearing hole is vertically set with the intubation hole on the I tube connection box; the II tube connection box is provided with a corresponding rotating shaft, which is connected to the The intubation hole on the connection box of the tube II is arranged vertically; the connection box of the tube II is arranged in the bearing hole of the connection box of the tube I through the rotating shaft, and is connected with the connection box of the tube I in rotation.

The present invention also provides a method for adjusting the depth of water sample collection. In the depth adjustment method, several X-shaped pipe fitting units are arranged, and the pipe fitting units are connected head to tail, and the joints are spliced into a rhombus; and two collection pipes of each X pipe fitting unit are formed. The tubes are free to rotate along the intersection point; the overall length of the connection is adjusted by adjusting the distance between the two collection tubes at the top.

Further, when it needs to be extended for deeper water sample collection, the distance between the two top collection tubes is reduced; when it needs to be contracted, the distance between the top two collection tubes is enlarged.

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

1. The present invention adopts the X-shaped pipe fitting unit and the diamond-shaped telescopic structure formed between the adjacent pipe fitting units, which has small volume and low buoyancy in the water, effectively solving the drawbacks of existing deep water sampling;

2. The present invention adopts the pipe connection box structure at the joint of the X-shaped pipe fittings, which ensures the free rotation of the X-shaped pipe fittings around the intersection point;

3. X-type pipe fittings are connected by hoses, which conforms to the practical application of folding and is convenient for disassembly and assembly;

4. The invention has good interchangeability, and the X-shaped pipe fittings can be increased or decreased according to the actual needs of users.

Description of drawings

Fig. 1 is the structural representation of water sample collection device of the present invention;

Fig. 2 is a structural schematic diagram of the I pipe connection box of the cross connection structure in Fig. 1;

Fig. 3 is a structural schematic diagram of the connection box of the II pipe of the cross-connection structure in Fig. 1 .

In the figure, 1-type pipe fitting unit, 11-collection tube Ⅰ, 12-collection tube Ⅱ, 2-cross connection structure, 21-Ⅰ tube connection box, 201-insertion hole, 202-bearing hole, 22-Ⅱ tube connection Box, 203-pipe hole, 203-rotating shaft, 3-flexible pipe.

Detailed ways

The present invention will be described in detail below according to the accompanying drawings.

As shown in Fig. 1, the novel water sample collection device of the present invention includes several X-shaped pipe fitting units 1, the number of which can be selected according to actual needs, and two are taken as an example in this embodiment. Each X-shaped pipe fitting unit includes two collecting tubes I11 and II12 of the same size, and the central positions of the collecting tubes I11 and II12 are rotatably connected by a cross connection structure 2 . The head end and the tail end of adjacent X pipe fitting units 1 are connected by flexible pipe 3 . The collection pipe can be hard PVC pipe. The hose can be made of rubber.

Referring to FIG. 2 and FIG. 3 , the cross-connection structure includes two connection boxes: I pipe connection box 21 and II pipe connection box 22 . The I tube connection box 21 and the II tube connection box 22 are provided with intubation holes 201 and 203 respectively, and the collection tube I11 and II12 pass through the intubation holes 201 and 203 respectively. The I tube connection box 21 is provided with a bearing hole 202 which is perpendicular to the insertion tube hole 201 . The II tube connection box 22 is provided with a corresponding rotating shaft 203 , and the rotating shaft 204 is perpendicular to the insertion hole 203 on the II tube connection box 22 . The II tube connection box 22 is set in the bearing hole 202 of the I tube connection box 21 through the rotating shaft 204, so as to realize the free rotation between the collection tube I11 and the collection tube II12.

The number of X-type pipe fitting units can be increased or decreased according to the sampling needs of different depths. When the distance between the top two collection tubes is increased, the length of the overall device can be reduced to reduce the collection depth; when the distance between the top two collection tubes is reduced, the length of the overall device can be extended to increase Acquisition depth.

If the present invention cooperates with the lifting device, the range of sampling depth will become larger.

Claims (6)

1. A novel water sample collection device, characterized in that: the water sample collection device comprises several X-shaped pipe fitting units; each X-shaped pipe fitting unit comprises two collection tubes connected in rotation; the head end of the adjacent X pipe fitting unit Connect to the end with a hose. 2 . The water sample collection device according to claim 1 , wherein each X-shaped pipe fitting unit further includes a cross-connection structure, and the middle parts of the two collection pipes are rotatably connected through the cross-connection structure. 3 . 3. The water sample collection device according to claim 2, characterized in that: the two collection tubes constituting each X-shaped pipe fitting unit are of the same size, and the central position of the length is rotatably connected by a corresponding cross-connection structure. 4. The water sample collection device according to claim 3, characterized in that: the cross-connection structure includes two connection boxes: the I tube connection box and the II tube connection box; the I tube connection box and the II tube connection box The two collection tubes of the X-type pipe fitting unit respectively pass through the intubation holes of the corresponding connection box; the I tube connection box is provided with a bearing hole, and the bearing hole is connected with the I tube connection box. The intubation hole is set vertically; the second tube connection box is provided with a corresponding rotating shaft, which is set perpendicular to the intubation hole on the II tube connection box; the second tube connection box is set on the bearing of the I tube connection box through the rotating shaft In the hole, it is rotatably connected with the I tube connection box. 5. A water sample collection depth adjustment method, characterized in that: the depth adjustment method is provided with some X-shaped pipe fitting units, each pipe fitting unit is connected head to tail, and the joints are spliced into a rhombus; and two of each X pipe fitting unit are formed. The root collecting tubes can rotate freely along the intersection point; the overall length after connection can be adjusted by adjusting the distance between the two collecting tubes at the top. 6. The adjustment method according to claim 5, characterized in that: when it needs to be extended for deeper water sample collection, the distance between the two collection tubes at the top is reduced; when it needs to be contracted, the two collection tubes at the top are enlarged distance between tubes.