JPH057546Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a measuring device that measures water temperature, etc. at the surface layer by floating the detection part on the surface layer of the water surface and following changes in the water level. This paper relates to a measuring device that can be applied to sea surfaces where the water level fluctuates.

(Prior art) An example of a conventional technology that floats a detection unit on the surface of the water for the purpose of measuring water temperature, etc. uses a cable wound around a pulley, with the detection unit connected to one end of the cable and the detection unit connected to the other end. A weight is connected, and the detection part and the weight are always kept parallel, and the detection part moves up and down to follow changes in the water level.

In the conventional technology, the distance from the pulley mounting position to the detection unit is several meters to several tens of meters, or
If the water level changes frequently over a range of several meters to tens of meters, both ends of the cable connecting the detection part and the weight may become entangled due to wind waves, etc. To avoid this, They are installed at a sufficient distance or a weight rope is inserted through the guide tube.

For this reason, in the prior art, even when the weight is housed in the guide tube or the distance between the two is set apart, entanglement of the cable and damage to the cable due to the influence of wind and waves cannot be completely prevented.

(Problem to be solved by the invention) The problem to be solved by the invention is to provide a float-type water surface tracking measuring device that prevents cables connected to the detection unit from becoming entangled due to slack due to water level fluctuations. .

(Means for solving the problem) The means for solving the problem in this invention are as follows:
A winding mechanism that has a detection part that floats on the water surface and measures water temperature, etc., a winding drum that winds a cable connected to the detection part, and a winding mechanism that is provided in conjunction with the shaft of the winding drum of the winding mechanism. and a driving pulley connected to the pulley by a winding belt made of an elastic material, the driving pulley being biased in the cable winding direction of the winding drum,
a constant torque winding device that rotates in the cable winding direction when the cable is in a free state, and rotates in the opposite direction against the cable winding direction when the weight of the detection unit is applied to the cable; The winding mechanism is characterized in that the winding mechanism is installed either on land, on the seabed, or in a detection section floating on the surface of the water.

(Function) The cable 2 wound around the winding drum 10 of the winding mechanism 1 is pulled out against the winding rotational force of the constant torque winding mechanism 12 to float the float 30 above the water surface.

Constant torque winding mechanism 12 provided on the winding drum 10
gives the winding drum 10 a rotational force in the direction of winding the cable 2, but the torque is generated by the vertical movement of the float 30 due to water level fluctuations.
Since the force is set to be smaller than the force acting in the direction of pulling out the cable, the cable 2 is wound and driven only when the cable 2 becomes slack due to water level fluctuation.

Therefore, when the float 30 moves up and down due to water level fluctuations, the winding drum 10 rotates in the forward and reverse directions, causing the cable 2 to be wound up or let out. Therefore, the cable 2 will not become entangled due to water level fluctuations.

(Example) Fig. 1 is an overall structural diagram of the present invention, which includes a winding mechanism 1 installed in a tower installed on land or at sea, and a cable 2 connected to the winding mechanism 1. The data measured by the detecting section 3 is transmitted to the recording control section 4.

In the winding mechanism 1, a winding drum 10 for winding up the cable 2 is mounted on a bracket 11, and a constant torque winding mechanism 12 is mounted on the shaft of the winding drum 10. As shown in FIG. 2, the constant torque winding mechanism 12 includes a gear 13 provided on the shaft of the winding drum 10, a pulley 14 provided coaxially with an intermediate gear 13a meshing with the gear 13, and a pulley 14 provided coaxially with the intermediate gear 13a meshing with the gear 13. The drive pulley 14a is connected to a winding belt 15 made of a spring material. Note that the winding belt 15 is curled, and the winding drum 10 is attached to the cable 2.
Torque is generated in the direction of winding up the cable 2, but this torque is set smaller than the force acting on the detection unit 3 in the direction of pulling out the cable 2 due to vertical movement due to water level fluctuation.

That is, the constant torque winding mechanism 12 is configured to prevent the cable 2 from rising when the water level rises due to the water level fluctuation of the detection unit 3.
When the cable 2 is loose and in a free state, the winding drum 10 is rotated in the cable winding direction, and when the water level drops and the cable 2 is pulled and the weight of the detection unit 3 is added to the cable 2, the cable 2 is rotated. The tension force causes the winding drum 10 to rotate in the opposite direction against the cable winding direction.

Therefore, when the detection part 3 is lowered and the cable 2 is pulled due to water level fluctuation, the winding belt 15 is pulled out against the torque acting in the winding direction, and conversely, when the water level rises, the winding belt 15 is pulled out against the torque acting in the winding direction. When the detection part 3 rises,
The slack cable 2 is wound onto a winding drum 10 by a constant torque winding mechanism 12.

Further, in the detection section 3, a float 30 is provided at the tip of the cable 2, and a water quality measuring device 31 including a water temperature gauge and the like is mounted inside the float 30.

The embodiment has the above configuration, and the distance from the winding mechanism 1 to the detection section 3 is several tens of meters, and the float 30 of the detection section 3 is floating above the water surface. As described above, the driving pulley 14a of the constant torque winding mechanism 12 of the winding mechanism 1 is biased with a constant torque to the winding drum 10 in the winding direction. When the winding is applied, it rotates in the opposite direction against the winding direction. Therefore, float 3
Since there is no load on the cable 2 when the cable 2 has landed in the water, the cable 2 is wound around the winding drum 10 by the constant torque winding mechanism 12, and the first
In the state shown in the figure, the cable 2 is not slack.

The float 30 of the detection unit 3 moves up and down due to water level fluctuations, but the constant torque winding mechanism 12 causes the cable 2 to follow the up and down movement of the float 30 and wind or unwind the cable 2 to prevent it from loosening. Therefore, damage to the connecting portion between the cable 2 and the float 30 can be prevented.

In addition, the data measured by a water quality measuring device 31 such as a water temperature meter attached to the float 30 is sent to the winding drum 1.
The data is transmitted to the recording control unit 4 through a slip ring 16 provided on the shaft of the 0.

3 and 4 show other embodiments. In FIG. 3, the winding mechanism 1 is connected to a float 30, and the cable 2 is fixed to a weight 5 provided on the seabed. Note that the float 30 is fixed to the mooring cable 6, and the cable 2 is equipped with an inclinometer 7.

In this case as well, the winding mechanism 1 follows the vertical movement of the float 30 and winds up and lets out the cable 2. In this embodiment, the amount of lateral movement of the float 30 is determined by detecting the rotational speed of the winding drum and determining the inclination of the cable 2 using an inclinometer 7 attached to the measurement line. I can do it.

In addition, in FIG. 4, the winding mechanism 1 is connected to a base 8 provided on the seabed, and the cable 2 is connected to a float 3.
It is fixed at 0.

In this case, one cable can measure the length direction (water level information based on rotational speed detection) and the inclination angle of the cable (the inclinometer is attached midway along the cable). Therefore, if other water quality information (water temperature, salinity, PH, DO, etc.), flow direction, flow velocity information is required, it is possible to add such measuring equipment.

(Effects of the invention) The present invention connects a detection unit equipped with a water temperature gauge, etc., to a cable, and has a winding drum of a winding mechanism that winds the cable follow the vertical movement of the detection unit due to water level fluctuations. Since it is equipped with a constant torque winding mechanism that rotates in forward and reverse directions and drives the winding drum in the winding direction only when the cable becomes slack, the cable is constantly moved around the winding drum in environments with severe water level fluctuations. It is wound up so that it does not loosen.

Therefore, the present invention not only prevents the cables from coming loose, but also allows water temperature and other water quality measurements to be made without damaging the connecting portions.

[Brief explanation of drawings]

Fig. 1 is an overall configuration diagram of the device of the present invention, Fig. 2 shows a cable winding section, A is a front view, B is a side view, and Figs. 3 and 4 are schematic diagrams showing other embodiments. be. DESCRIPTION OF SYMBOLS 1... Winding mechanism, 2... Cable, 3... Detection part, 4... Recording control part, 10... Winding drum, 1
1... Bracket, 12... Constant torque winding mechanism,
13... Gear, 14... Pulley, 15... Winding belt, 30... Float, 31... Water quality measuring device.

Claims (1)

[Scope of Claim for Utility Model Registration] A winding mechanism having a detection unit that floats on the water surface and measures water temperature, etc., a winding drum around which a cable connected to the detection unit is wound, and a winding drum of the winding mechanism. It consists of a pulley provided in conjunction with the shaft portion of and a drive pulley connected to the pulley by a winding belt made of an elastic material,
The drive pulley is biased in the cable winding direction of the winding drum, rotates in the cable winding direction when the cable is free, and rotates in the cable winding direction when the weight of the detection section is applied to the cable. A float type comprising a constant torque winding device that rotates in the opposite direction against the direction, and the winding mechanism is installed either on land, on the seabed, or on a detection unit floating on the surface of the water. Water surface tracking measurement device.