CN110174284A - A kind of water body columnar sampler - Google Patents

Abstract

The invention relates to a columnar water body sampler, which comprises a fixed base, a support unit, a sampling tube, the water inlet at the lower end of the sampling tube is located in a circular through hole of the fixed base; a movable base, which can be folded or rotated On the lower part of the fixed base, the movable base is provided with a plug that seals the water inlet at the lower end of the sampling tube; an electric push rod mechanism is connected with the mobile base to drive the moving base to fasten the plug to the water inlet of the sampling tube or open it; and a control mechanism, which is arranged on the upper end of the support unit and is electrically connected with the electric push rod mechanism, and is used for controlling the operation of the electric push rod mechanism. Compared with the prior art, the present invention adopts a more automatic electric push rod mechanism as the actuator of the closing/opening device. During actual use, it is not easily affected by the buoyancy of the water body, operation disturbance, etc., and the reliability of the closing execution is good, and The whole process of the test is fully automatic, without the need for the experimenter to manually break the closed seal, saving trouble and effort.

Description

A water columnar sampler

technical field

The invention relates to a sampler, in particular to a columnar water body sampler.

Background technique

According to "HJ/T 91-2002 Surface Water and Sewage Monitoring Technical Specifications", for the determination of oil water samples, columnar water samples should be collected from the water surface to 300mm, and taken separately, all used for determination. At present, in the actual sampling, due to the limitation of field conditions and tools, many commercially available plastic buckets are used. When collecting water, the plastic buckets are directly put into the water flow to extract the sampled water. This water collection method does not meet the columnar water requirements in the standard. Plastic buckets are not easy to clean with detergent in the laboratory after water collection.

In addition, in the existing collection scheme, devices such as elastic ropes are often used to close the opening of the sampling pipe after the water collection is completed. Since the rope and other devices are additional devices to the sampling container, it may cause interference to the water quality, and the operation is cumbersome. .

Patent CN107907378A discloses a water collector, which includes a sampling tube, a bracket, a closing assembly and a control device; the sampling tube is detachably mounted on the bracket; the sampling tube has a water inlet and a vent, which are respectively arranged at both ends of the sampling tube The closing assembly is arranged on the bracket, including the upper part of the bottle opening closing assembly and the lower part of the bottle opening closing assembly; the upper part of the bottle opening closing assembly is arranged at a position corresponding to the water inlet of the sampling tube; the lower part of the bottle opening closing assembly can be folded or rotated for installation On the bracket, driven by the control device, it performs the movement of turning over or rotating; after the lower part of the bottle mouth closing component is turned over or rotated, the upper part of the bottle mouth closing component is closed. The water collection device can realize columnar water collection, and the whole water collection process is safe and pollution-free. However, this device is a manual sampler, which has the following disadvantages during use: 1) the patent relies on counterweight gravity to implement closure, which is easily affected by water buoyancy, operation disturbance, etc., and the reliability of closure execution is not good; 2) the patent It is sealed by two magnetic closing components. When using it, the experimenter needs to break it manually, which is laborious and laborious. Therefore, the sampler is not convenient to use.

Contents of the invention

The object of the present invention is to provide a water column sampler in order to solve the above problems.

The object of the present invention is achieved through the following technical solutions:

A water columnar sampler, comprising:

A fixed base, the fixed base is provided with a circular through hole;

A support unit, the bottom of the support unit is vertically connected to the fixed base;

A sampling tube, the sampling tube is detachably installed in the middle of the support unit, the lower end of the sampling tube is a water inlet, the upper end is a vent, and the water inlet at the lower end of the sampling tube is located in the circular through hole of the fixed base;

A movable base, which can be folded or rotated and installed on the lower part of the fixed base, and the movable base is provided with a plug for sealing the water inlet at the lower end of the sampling tube;

An electric push rod mechanism, which is connected to the mobile base by transmission, drives the mobile base to act, and buckles the pressure plug to the water inlet of the sampling tube or opens it; and

A control mechanism is arranged on the upper end of the support unit and is electrically connected with the electric push rod mechanism, and is used to control the operation of the electric push rod mechanism.

Further, the support unit is arranged on the side of the fixed base, and the circular through hole is arranged in the middle of the fixed base.

Further, the supporting unit includes a fixing frame and a plastic casing covering the outside of the fixing frame, and the sampling tube is detachably mounted on the supporting unit through a clamping mechanism.

Further, the clamping mechanism includes a first pressure tube base and a second pressure tube base, the first pressure tube base and the second pressure tube base are both provided with a semi-cylindrical inner concave cavity, the first pressure tube base and the second pressure tube base One end of the second pressure tube base is hinged, and the other end is provided with a hasp. The first pressure tube base is fixedly connected to the support unit, and the sampling tube is clamped by the first pressure tube base and the second pressure tube base. fixed.

Further, the sampling tube is a cylindrical glass sampling tube.

Further, the electric push rod mechanism includes a lifting rod and an electric push rod, the lower end of the lifting rod is connected to the mobile base through the lower stretching joint, and the upper end of the lifting rod is connected to the electric push rod through the upper stretching joint. Push shaft connection.

Further, the moving base is rotatably mounted on the fixed base through two rotating pins, the pressing plug is a cylindrical boss structure made of tetrafluoroethylene, and the pressing plug is fixed to the fixed base by screws. On the moving base, a spring is arranged between the lower part of the pressing plug and the moving base.

Further, the control mechanism includes a rechargeable power supply, a main control board, a button switch and a wireless alarm transmitter board, and the rechargeable power supply provides working voltage for the sampler.

Furthermore, the control mechanism is installed in the upper casing, and a flash board is installed outside the upper casing to display the power of the rechargeable power supply, which can promptly remind the user of the power usage of the equipment and arrange work and charging reasonably.

Further, the sampler is also provided with a float level sensor for monitoring the liquid level, and the float level sensor is arranged in the support unit.

Compared with the prior art, the present invention adopts a more automatic electric push rod mechanism as the actuator of the closing/opening device. Compared with the existing gravity counterweight and magnetic seal assembly, the automatic electric push rod belongs to mechanical direct connection execution The mechanism is directly connected to the sealing component. In the actual use process, it is not easily affected by the buoyancy of the water body and operation disturbance. The reliability of the closing execution is good, and the whole process of the test is fully automatic, and there is no need for the experimenter to manually break the closed seal. , save trouble and effort.

Description of drawings

Fig. 1 is a schematic diagram of the external overall structure of the sampler of the present invention;

Fig. 2 is the partial structural representation of sampler of the present invention;

3 is a schematic diagram of the internal structure of the electric push rod mechanism of the sampler of the present invention;

Fig. 4 is the structural representation of sampler bottom of the present invention;

Fig. 5 is the structural representation of clamping mechanism of the present invention;

6 and 7 are partial structural schematic diagrams of the mobile base of the present invention;

8 and 9 are schematic diagrams of cooperation between the mobile base and the sampling tube of the present invention;

Fig. 10 is a partial structural schematic diagram of the control mechanism of the present invention.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Example

As shown in Figures 1, 2, and 4, a columnar water body sampler includes: a fixed base 1, which is provided with a circular through hole; a support unit 2, the bottom of which is vertically connected to the fixed base 1; a sampling Pipe 3, the sampling pipe 3 is a cylindrical glass sampling pipe, the sampling pipe 3 is detachably installed in the middle of the support unit 2, the lower end of the sampling pipe 3 is a water inlet, the upper end is a ventilation port, and the water inlet at the lower end of the sampling pipe 3 is located at the bottom of the fixed base 1 In the circular through hole; a mobile base 4, which can be folded or rotated, is installed on the bottom of the fixed base 1, and the mobile base 4 is provided with a plug 41 that seals the water inlet at the lower end of the sampling tube 3; as shown in Figures 8 and 9, a The electric push rod mechanism 7 is connected with the mobile base 4 in transmission, drives the mobile base 4 to act, buckles the pressure plug 41 to the water inlet of the sampling tube 3 or opens it; and a control mechanism 6 is located at the upper end of the support unit 2 and is connected with the electric push rod The mechanism 7 is electrically connected to control the operation of the electric push rod mechanism 7 .

As shown in FIG. 2 , the support unit 2 is disposed on the side of the fixed base 1 , and the circular through hole is disposed in the middle of the fixed base 1 . The supporting unit 2 includes a fixing frame 21 and a plastic casing covering the outside of the fixing frame 21 , and the sampling tube 3 is detachably mounted on the supporting unit 2 through the clamping mechanism 5 .

As shown in Figure 5, the clamping mechanism 5 includes a first pressure tube seat 51 and a second pressure tube seat 52, the first pressure tube seat 51 and the second pressure tube seat 52 are all provided with a semi-cylindrical inner concave cavity, the first pressure tube One end of the seat 51 and the second pressure tube seat 52 is hinged, and the other end is provided with a hasp 53. The first pressure tube seat 51 is fixedly connected to the support unit 2, and the sampling tube 3 is held by the first pressure tube seat and the second pressure tube seat. Clamp securely.

As shown in Figure 3, the electric push rod mechanism 7 includes a lift rod 71 and an electric push rod 72. The push shaft 73 of the push rod 72 is connected.

As shown in Figures 6 and 7, the mobile base 4 is rotated and mounted on the fixed base 1 through two rotating pin shafts 43. The pressing plug 41 is a cylindrical boss structure made of PTFE. The pressing plug 41 is fixed to the mobile base 1 by screws. On the base 4 , a spring 42 is provided between the lower part of the pressing plug 41 and the moving base 4 .

As shown in Fig. 10, the control mechanism 6 includes a rechargeable power supply 61, a main control board 62, a button switch 64 and a wireless alarm transmitting board 63, and the rechargeable power supply 61 provides working voltage for the sampler. The control mechanism 6 is installed in the upper casing, and the upper casing is also equipped with a flash board showing the power of the rechargeable power supply.

In addition, the sampler is also provided with a float level sensor 8 for monitoring the liquid level. The float level sensor is arranged in the support unit 2 and can monitor the height of the sampler in water.

The specific workflow is as follows:

Before starting to collect water, the sampling tube 3 is installed on the clamping mechanism 5 , and the water inlet at the lower end of the sampling tube 3 is located in the circular through hole of the fixed base 1 . The control mechanism works and sends instructions to make the electric push rod mechanism move. At the initial position, the lifting pole 71 of the electric push rod mechanism is in the pull-up state, the moving base 4 is folded down, and the pressing plug 41 is turned down with the moving base 4 fold, the water inlet of the sampling pipe 3 is opened, then the water collector is put into lakes and rivers, and reaches the designated water collection position, and the columnar water is obtained; Rod 71 moves downwards, moving base 4 is turned upwards, pressing plug 41 is turned upwards along with moving base 4, pressing plug 41 is fastened on the water inlet of sampling tube 3, sampling tube 3 is sealed, and finally the water collector is pulled out of lakes and rivers, After the openings at both ends of the sampling tube 3 are covered with bottle caps, a new sampling tube 3 is replaced for the next water sampling process.

The present invention adopts a more automatic electric push rod mechanism as the actuator of the closing/opening device, which belongs to the mechanical direct connection actuator and is directly connected with the sealing assembly. The reliability is good, and the whole process of the test is fully automatic, without the need for the experimenter to manually break the closed seal, saving trouble and effort.

The above descriptions of the embodiments are for those of ordinary skill in the art to understand and use the invention. It is obvious that those skilled in the art can easily make various modifications to these embodiments, and apply the general principles described here to other embodiments without creative effort. Therefore, the present invention is not limited to the above-mentioned embodiments. Improvements and modifications made by those skilled in the art according to the disclosure of the present invention without departing from the scope of the present invention should fall within the protection scope of the present invention.

Claims (10)

1. A columnar water body sampler, characterized in that it comprises: A fixed base (1), the fixed base (1) is provided with a circular through hole; A support unit (2), the bottom of the support unit (2) is vertically connected to the fixed base (1); A sampling tube (3), the sampling tube (3) is detachably installed in the middle of the support unit (2), the lower end of the sampling tube (3) is a water inlet, the upper end is a vent, and the lower end of the sampling tube (3) is The water inlet is located in the circular through hole of the fixed base (1); A movable base (4), which can be folded or rotated, is installed on the lower part of the fixed base (1), and the movable base (4) is provided with a plug ( 41); An electric push rod mechanism (7), which is in transmission connection with the mobile base (4), drives the mobile base (4) to move, buckles the pressing plug (41) to the water inlet of the sampling tube (3) or opens it; and A control mechanism (6) is arranged on the upper end of the support unit (2) and is electrically connected with the electric push rod mechanism (7), for controlling the operation of the electric push rod mechanism (7). 2. A columnar water body sampler according to claim 1, characterized in that, the support unit (2) is arranged on the side of the fixed base (1), and the circular through hole is arranged on the side of the fixed base (1). Fix the middle position of the base (1). 3. A kind of water body columnar sampler according to claim 1, is characterized in that, described support unit (2) comprises fixed frame (21) and the plastic cover that is arranged on the outside of described fixed frame (21), The sampling tube (3) is detachably mounted on the support unit (2) through a clamping mechanism (5). 4. A columnar sampler for water body according to claim 3, characterized in that, the clamping mechanism (5) comprises a first pressure pipe seat (51) and a second pressure pipe seat (52), and the first pressure pipe seat (52) A pressure pipe seat (51) and a second pressure pipe seat (52) are all provided with a semi-cylindrical concave cavity, and one end of the first pressure pipe seat (51) and the second pressure pipe seat (52) are hinged, and the other end is provided with a There is a buckle (53), the first pressure tube seat (51) is fixed on the support unit (2), and the sampling tube (3) is clamped by the first pressure tube seat and the second pressure tube seat fixed. 5. A columnar water body sampler according to claim 1, characterized in that the sampling tube (3) is a cylindrical glass sampling tube. 6. A columnar sampler for water body according to claim 1, characterized in that, the electric push rod mechanism (7) comprises a lift rod (71) and an electric push rod (72), and the lift rod ( 71) The lower end is connected to the mobile base (4) through the lower tension joint (75), and the upper end of the lift rod (71) is connected to the push shaft (73) of the electric push rod (72) through the upper tension joint (74) . 7. A columnar sampler for water body according to claim 1, characterized in that, said mobile base (4) is mounted on said fixed base (1) in rotation through two rotating pin shafts (43), said The tampon (41) is a cylindrical boss structure made of PTFE, the tampon (41) is fixed on the mobile base (4) by screws, the lower part of the tampon (41) is connected to the mobile Springs (42) are arranged between the bases (4). 8. A kind of water column sampler according to claim 1, characterized in that, the control mechanism (6) includes a rechargeable power supply (61), a main control board (62), a button switch (64) and a wireless alarm The launch board (63), the rechargeable power supply (61) provides working voltage for the sampler. 9. A columnar water body sampler according to claim 8, characterized in that the control mechanism (6) is installed in the upper casing, and a flashing light for displaying the power of the rechargeable power supply is also provided outside the upper casing plate. 10. A kind of water column sampler according to claim 1, characterized in that, the sampler is also provided with a float level sensor (8) for monitoring the liquid level, and the float level sensor is located at the inside the support unit (2).