CN106840774A - The parallel sample introduction level of different depth multiple spot is to water sampler - Google Patents

Abstract

A horizontal water sample collector with multi-point parallel sampling at different depths, mainly the collectors are vertically arranged in parallel on the outer frame, and the collectors are slidably connected with the translational cam mechanism through the connecting frame connected to it, and the connecting frame is connected with the External frame sliding connection. Since the sample injector adopts the arrangement of several collectors vertically parallel in parallel, water samples of different depths can be collected at the same time, which not only greatly improves the working efficiency of the sample collector, but also has the advantages of simple operation and low cost. In addition, it can also collect high-precision water samples at different depths at the same location at the same time, which can further meet the needs of environmental monitoring and related scientific research for time-synchronized data. This kind of sampling collector not only complies with the technical requirements of the "Water Environment Monitoring Specification" for samplers, but also has the characteristics of reasonable structure, firmness, simple operation and convenient maintenance.

Description

Multi-point parallel injection horizontal water sample collector at different depths

technical field

The invention relates to a collector, in particular to a horizontal water sample collector for multi-point parallel sampling at different depths. It is suitable for field water sample collection when doing environmental assessment and water quality monitoring, and provides water samples to be tested for the follow-up work of water quality monitoring.

Background technique

The water sample sampling collector, as the name suggests, is used for field water sample collection when doing environmental assessment and water quality monitoring, and provides water samples to be tested for the follow-up work of water quality monitoring. In many studies, water sample collection is a task that cannot be underestimated in water quality analysis and monitoring, and the selection and improvement of water sample injectors play a vital role in the representativeness, effectiveness and accuracy of water sample collection. role.

The water sample sampling collectors used in field water sample collection are divided into two types: automatic sampling sampling collectors and manual sampling sampling collectors in terms of their operation methods. and simple sampling collectors. At present, most of the water quality sampling for environmental monitoring uses polyethylene plastic barrels or single-layer water sampling bottles or plexiglass sampling collectors. There is a large error in the sampling point of water level and sewage, and each sampling can only be aimed at a certain depth.

Contents of the invention

The purpose of the present invention is to provide a multi-point parallel sampling horizontal water sample collector of different depths, which can overcome the deficiencies of the existing technology and can collect water samples of different depths at the same time, which can not only greatly improve work efficiency, but also has The advantages of simple operation and low cost. In addition, water samples at different depths at the same location can be collected at the same time with high precision, which can further meet the needs of environmental monitoring and related scientific research for time-synchronized data.

The invention is designed according to the technical requirements for sample injectors in "Water Environment Monitoring Specification".

The solution is: a collector is vertically arranged in parallel on the outer frame, the collector is slidably connected to the translational cam mechanism through a connecting frame connected thereto, and the connecting frame is slidably connected to the outer frame. Driven by the translational cam mechanism, the collector works to provide water samples to be tested for the follow-up work of water quality monitoring.

The collector is composed of a piston cylinder and a piston connected to it in a static sliding fit.

The translation cam mechanism is composed of a translation plate, a handle eccentric wheel and a shaft eccentric wheel connected to it in rotation, the handle eccentric wheel is connected with an eccentric handle rotatably connected with the external frame, and the shaft eccentric wheel is connected with a rotatable handle connected with the outer frame. Eccentric shaft.

In the present invention, collectors are vertically arranged in parallel on the outer frame, and the collectors are slidably connected to the translational cam mechanism through a connecting frame connected thereto, and the connecting frame is slidably connected to the outer frame. Since several collectors are vertically connected in parallel, water samples of different depths can be collected at the same time, which not only greatly improves the working efficiency of the sampling collector, but also has the advantages of simple operation and low cost. In addition, it can also collect high-precision water samples at different depths at the same location at the same time, which can further meet the needs of environmental monitoring and related scientific research for time-synchronized data. This sampling collector not only complies with the technical requirements for sampling collectors in the "Water Environment Monitoring Specification", but also has the characteristics of reasonable structure, firmness, simple operation and convenient maintenance.

Description of drawings

Fig. 1 is a schematic front view of the structure of a horizontal water sample collector with multi-point parallel injection at different depths.

Fig. 2 is a sectional view of A-A in Fig. 1 .

Fig. 3 is a B-B sectional view in Fig. 1 .

detailed description

Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

In Fig. 1 to Fig. 3, five collectors are arranged vertically in parallel and in parallel on one side of the outer frame 4, and each collector consists of a piston cylinder 1 fixedly connected with the external frame 4, and a piston cylinder 1 that is statically slidably connected with the piston cylinder 1. Composed of piston 2, the right end of piston 2 is fixedly connected with I-shaped connecting frame 3, and connecting frame 3 is slidably connected with external frame 4, and the other end of connecting frame 3 is connected with the sliding plate 6 on the translational cam mechanism. Groove 7 sliding connection. The translation cam mechanism is composed of a translation plate 6, a handle eccentric wheel which is rotationally connected with the translation plate 6 through a bearing, and a shaft eccentric wheel which is connected with the translation plate 6 bearings through a bearing 10. The eccentric handle 8 is fixedly connected with the eccentric handle 8, and the eccentric handle 8 is connected with the outer frame 4 bearings through the bearing 9, and the eccentric shaft 5 is fixedly connected with the eccentric shaft 5, and the eccentric shaft 5 is connected with the outer frame 4 bearings through the bearing.

When the device is idle, the piston 2 is in the initial position completely located in the piston cylinder 1, and the eccentric handle 8 is in the vertical downward position.

When sampling, immerse the sampling collector at the specified depth in the water to be sampled, then shake the eccentric handle 8, when the eccentric handle 8 turns upwards, the eccentric shaft 5 of the shaft eccentric wheel drives the connecting frame 3 to move to the right, and The piston 2 is forced to move in the same direction. At the same time, water starts to enter the piston cylinder 1. When the eccentric handle 8 moves to the vertical upward position, the water intake in the piston cylinder 1 reaches the maximum value. At this point, remove the sample collector from the water.

Then, align the left end of the piston cylinder 1 with the volumetric bottle to be injected with sample water, and then turn the eccentric handle 8 downward from the vertical upward position, and the eccentric shaft 5 of the shaft eccentric wheel drives the connecting frame 3 to move to the left, and at the same time , the sample water in the piston cylinder 1 starts to flow out and is injected into the volumetric flask. When the eccentric handle 8 moves to the vertical downward position, the sample water volume in the piston cylinder 1 is completely discharged into the volumetric flask, and the sampling process ends.

In addition, in order to save subsequent treatment of water samples during sampling, according to specific test requirements, the filter membrane can also be set on the water inlet and outlet of the piston cylinder 1 before sampling, and then the filter membrane can be put on after the water sample is taken. Take it off, and then inject the water sample taken into the volumetric flask, so that the subsequent steps do not need to be filtered again.

Claims (3)

1. a kind of parallel sample introduction level of different depth multiple spot is to water sampler, it is characterised in that in external frame (4) vertically simultaneously Connection is disposed with collector, and the collector is connected by connected link (3) with translation cam mechanism slips, and link (3) and with external frame (4) it is slidably connected, collector work, is the follow-up of water quality monitoring under the drive of translation cam mechanism Work provides water sample to be measured.

2. the parallel sample introduction level of different depth multiple spot as claimed in claim 1 is to water sampler, it is characterised in that described to adopt Storage is constituted by piston cylinder (1) and with the piston (2) of its quiet sliding connection.

3. the parallel sample introduction level of different depth multiple spot as claimed in claim 1 is to water sampler, it is characterised in that described flat Move cam mechanism and the handle eccentric wheel and eccentric shaft that are connected are rotated by translatory plate (6) and with it by constituting, it is solid on handle eccentric wheel Surely eccentric handle (8) is connected with, and eccentric handle (8) is rotated with external frame (4) and is connected, eccentric shaft opinion is above fixedly connected with partially Heart axle (5), and eccentric shaft (5) is rotated with external frame (4) and is connected, and is connected with handle eccentric wheel and is rotated with external frame (4) The eccentric handle (8) of connection, eccentric shaft opinion is above connected with the eccentric shaft (5) for being rotated with external frame (4) and being connected.