CN201096649Y - Sampling bottle unhooking releasing device - Google Patents

Abstract

The utility model relates to a sampling bottle decoupling release device, which is integrally installed on a water collector, and has a pin shaft positioning frame, a pin shaft and an electromagnetic valve, wherein the pin shaft is arranged in a through hole of the pin shaft positioning frame, and one end of the pin shaft is It is fixedly connected with the moving iron core of the solenoid valve, and a notch intersecting with the through hole is provided on the pin shaft positioning frame, and the tie line connecting the sampling bottle cap is sleeved on the pin shaft at the notch of the pin shaft positioning frame. The utility model has the advantages of simple structure, reliable performance, good sealing effect, time-saving and labor-saving, and strong applicability. It can be equipped with snap-cap sampling bottles with the same principle as Niskin sampling bottles, regardless of their size and volume.

Description

Sampling Bottle Unhook Release Device

technical field

The utility model relates to a decoupling release device for a sampling bottle, in particular to a decoupling release device for a sampling bottle which enables a capped sampling bottle to complete water collection in a depth profile.

Background technique

Marine environmental pollution monitoring, seawater physical chemistry and geological survey, in most cases, need to collect water samples from the target sea area. Sometimes it is necessary to take samples sequentially at different depths to obtain the on-site water body information of the gradient profile, so as to ensure the unity, standardization and analogy of the analysis results. Niskin bottle and other sampling bottles improved according to its principle have become widely used water sample collectors because of their reasonable design, simple operation and easy cleaning. Whether several sampling bottles are placed on the Rosette Sampler or directly hung on the sampling cable, the working principle of "open-close" or "close-open-close" is used, that is, when the bottle is released The two card covers are opened, and the bottle body is in the flushing state. After reaching the predetermined water collection depth, the system gives a release signal or manually releases the hammer, and the card cover is closed to realize sampling.

The sunflower-type water collector uses the release hook to hook the limit rope of the sampling bottle cap, and takes off the release hook under the action of the stepping motor, and the cap is closed under the pulling force of the rubber band inside the sampling bottle or the spring outside the bottle; operation There is no need for manual intervention, but the uncoupling mechanism is more complicated, and the stepper motor may be affected by high voltage, temperature, etc., which may cause shaft holding and malfunction. For sampling bottles that are directly mounted on the sampling cable, the hammer is usually operated on the side of the ship to close the card cover, so it is more cumbersome and time-consuming.

Utility model content

Aiming at the deficiencies in the prior art, the problem to be solved by this utility model is to provide a sampling bottle unhook release device with simple mechanical mechanism and electric control structure and accurate action, which can automatically unhook and close the sampling bottle when the predetermined sampling depth is reached The card cover is successfully completed for sampling.

For solving the problems referred to above, the technical scheme that the utility model adopts is:

The sampling bottle decoupling release device of the utility model is integrally installed on the water collector, and has a pin shaft positioning frame, a pin shaft and a solenoid valve, wherein the pin shaft is arranged in the through hole of the pin shaft positioning frame, and one end of the pin shaft is connected to the solenoid valve. The moving iron core is fixedly connected, and the pin shaft positioning frame is provided with a notch intersecting with the through hole, and the tie line connecting the sampling bottle cap is sleeved on the pin shaft at the notch of the pin shaft positioning frame.

The electromagnetic valve is sealed in the electromagnetic valve compartment, and the pin shaft is placed in the electromagnetic valve compartment through the outer end cover; the electromagnetic valve compartment is installed in the control sealing compartment of the water collector; the electromagnetic valve compartment is filled with oil, and the outer end cover is filled with oil. The end cover is provided with an opening, which is sealed with an oil-resistant rubber film; the control line of the solenoid valve is connected to the control circuit in the control sealing chamber through a watertight joint; The number of supporting settings.

The utility model has the following beneficial effects and advantages:

1. Simple structure. The decoupling release device for sampling bottles of the utility model does not need complex mechanical components, and the control drive circuit is also very simple; no stepping motor is used, which avoids the possibility of misoperation;

2. Good sealing effect. The utility model fills the solenoid valve chamber with oil, and uses a rubber film to maintain the balance of the oil pressure in the solenoid valve chamber and the external water pressure; the pin shaft will not bring water into the solenoid valve chamber when it moves under the driving of the moving iron core. Guaranteed sealing effect;

3. Reliable performance, fast and accurate action, saving time and effort. Once the solenoid valve is energized, it can be reliably released and the card cover can be closed;

4. It has strong applicability, and can be equipped with snap-cap sampling bottles with the same principle as Niskin sampling bottles, and its size and volume are not limited.

Description of drawings

Fig. 1 is the structural assembly diagram of the sampling bottle decoupling release device of the present invention;

Figure 2 is a partially enlarged view of Figure 1;

Fig. 3A is a front view of the structure of the pin positioning frame involved in the utility model;

Fig. 3B is a left view of the structure of the pin positioning frame involved in the utility model;

Fig. 4 is the schematic diagram of the principle of the electromagnetic valve involved in the utility model;

Fig. 5 is a schematic diagram of the utility model control circuit.

Detailed ways

As shown in Figures 1, 2, 3A, 3B, and 4, the present embodiment takes four sets as an example, and the decoupling release device of each set of sampling bottles is integrally installed on the water collector, with a pin positioning frame 9, a pin 11 and Solenoid valve 7, wherein pin shaft 11 is arranged in the through hole of pin shaft positioning frame 9, and one end of pin shaft 11 is fixedly connected with the moving iron core 21 of solenoid valve 7, and pin shaft positioning frame 9 is provided with a cross-through hole with the through hole. The notch 9a, the width of the notch 9a is greater than or equal to the stroke of the electromagnetic valve moving iron core.

The sampling bottle 4 can be selected from the Niskin sampling bottle widely used at present, or other snap-cap sampling bottles with similar working principles. Sampling bottle 4 is fixed on the outer periphery of the control sealed storehouse 1 of the cylindrical waterproof and pressure-resistant water sampling device. There is a rubber band 3 of sufficient strength in the sampling bottle 4, which is connected with the clamping caps 2 arranged at both ends of the sampling bottle 4. All connect tie line 6 (the present embodiment is nylon monofilament) on two card covers 2, wherein the nylon monofilament end of one end card cover is tied a hanging ring 5, and the nylon monofilament end of the other end card cover is knotted into round sleeve 8 . When collecting water, the sampling bottle card cover 2 is opened, the round sleeve 8 at the end of the nylon monofilament passes through the hanging ring 5, and is placed on the pin shaft 11 at the notch 9a of the pin shaft positioning frame, and the pin shaft 11 passes through the outer The end cap 12 is placed in the electromagnetic valve chamber 14, and fixed with the moving iron core 21 of the electromagnetic valve 7 by bolts, so that the sampling bottle 4 is in an open position and is in place.

The outer end of the solenoid valve chamber 14 is fixed to one end of the control sealing chamber 1 with bolts, and the inner end of the solenoid valve chamber 14 is fixed to the inner support 15 of the control sealing chamber 1. The outer end cover 12 is fixed on the outer end of the electromagnetic valve chamber 14; the pin positioning frame 9 is fixed on the outer end cover 12 with screws. The outer end cap 12 is in the shape of a ring, and the outer end cap 12 is in the shape of a ring, and the rubber membrane 10 is tightly installed on the edge of the central opening. Solenoid valve chamber 14 is filled with mineral oil, sealed with rubber film 10 (oil-resistant rubber), to keep the oil pressure in the chamber and the external water pressure in balance. There are four solenoid valves 7 and a watertight joint 13 in the solenoid valve chamber 14. The watertight joint 13 is five cores, one of which is the common power supply terminal of the four solenoid valves 7; the other four cores are respectively connected to the power supplies of the solenoid valves 7. input. One end of the watertight joint 13 is installed in the electromagnetic valve compartment 14, and the other end stretches into the control sealing compartment 1, and the corresponding power line is connected on the control circuit board 17.

As shown in FIG. 1 , a support 15 is arranged in the control sealed chamber 1 of the water collector, and a pressure sensor 16 , a control circuit board 17 and a battery 18 are arranged on the support 15 . Also as shown in FIG. 5 , the control circuit board 17 is equipped with a single-chip microcomputer, a voltage stabilizing block, a level conversion chip and a solid-state relay, etc. The battery 18 powers the control circuit board 17 and the pressure sensor 16 . The control system takes the single-chip microcomputer as the core, and uses the human-computer interaction interface of the host computer to set and pre-store the water sampling depth of each sampling bottle 4 . The pressure sensor 16 communicates with the single-chip microcomputer through a level conversion chip, and the output terminals P1.1-P1.4 of the single-chip microcomputer control the electrification or de-energization of the coil of the solenoid valve 4 through the solid state relay.

The probe of pressure sensor 16 stretches out of the control sealed chamber 1. When the water collecting device enters the water and works, the single-chip microcomputer continuously sends an instruction to read the pressure value to the pressure sensor 16, and constantly compares the pressure value fed back by the pressure sensor 16 with the preset water collecting pressure value (water collecting depth). When the comparison result shows that each preset depth is reached, the output terminal of the single-chip microcomputer outputs signals to the corresponding electromagnetic valve 7 in the sampling bottle decoupling release device at different depths to make the coil 20 electrified. Solenoid valve 7 selects direct-acting solenoid valve (as shown in Figure 4) for use, and after coil 20 is energized, the magnetic force that produces makes static iron core 19 suck in the moving iron core 21 in valve; Move a certain distance, and drive the pin shaft 11 to move in the same direction at the same time, affected by the restriction of the notch 9a of the pin shaft positioning frame 9, the round sleeve 8 is taken off, and the card cover 2 is closed under the pulling force of the rubber band 3 in the bottle, thereby completing Water harvesting tasks on this section. After the coil 20 is powered off, the moving iron core 21 resets under the action of the return spring 22 . In this way, the four sampling bottles collect four bottles of seawater at different depths on the same seawater gradient surface.

Claims (5)

1. A sampling bottle decoupling release device, which is integrally installed on the water collector, is characterized in that: it has a pin positioning frame (9), a pin (11) and a solenoid valve (7), wherein the pin (11) is set In the through hole of the pin positioning frame (9), one end of the pin shaft (11) is fixedly connected with the moving iron core (21) of the solenoid valve (7), and a pin crossing with the through hole is provided on the pin positioning frame (9). Through the notch (9a), the tie line (6) connecting the sampling bottle cap is sleeved on the pin shaft (11) at the notch (9a) of the pin shaft positioning frame (9). 2. The sampling bottle decoupling release device according to claim 1, characterized in that: the solenoid valve (7) is sealed and arranged in the solenoid valve compartment (14), and the pin shaft (11) passes through the outer end cover (12). Placed in the electromagnetic valve compartment (14); the electromagnetic valve compartment (14) is installed in the control sealing compartment (1) of the water collector. 3. The sampling bottle decoupling release device according to claim 2, characterized in that: the electromagnetic valve chamber (14) is filled with oil, the outer end cap (12) is provided with an opening, and an oil-resistant rubber (10) film is installed to seal . 4. The sampling bottle decoupling release device according to claim 2, characterized in that: the control line of the solenoid valve (7) is connected to the control circuit provided in the control sealing chamber (1) through a watertight joint (13). 5. The sampling bottle decoupling release device according to claim 1, characterized in that: said pin shaft positioning frame (9), pin shaft (11) and electromagnetic valve (7) are set according to the number of sampling bottles.

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