KR0130156Y1 - Open/close control device of greenhouse - Google Patents

Abstract

The present invention simplifies the opening and closing time operation of the switchgear for opening and closing the skylight or side window of the greenhouse and eliminates the inconvenience caused by the position adjustment of the limit switch to determine the opening and closing point from the outside.

The present invention in the switchgear to open and close the skylight or side windows of the greenhouse by rotating the shaft by reducing the rotational power of the motor,

A worm gear is installed on one side of the switch to decelerate the rotation of the shaft, and a gear part is formed at the tip of the rotating shaft to which the worm gear is coupled. The cam gear is installed in a spring, and the cam gear is installed with a limit switch, and the gear train is covered with a transparent cover having a scale.

Description

Opening and closing control device of greenhouse switchgear

1 is a perspective view of the present invention.

2 is a cross-sectional view of the present invention.

3 is a longitudinal sectional view of the present invention.

4 is an explanatory view of the operation of the present invention cam gear and limit switch.

5 is a main side view of the present invention.

* Explanation of symbols for main parts of the drawings

10: motor 20: switchgear

21: axis 25: worm

31: Worm Gear 32,32 ': Cam Gear

33,33 ': axis of rotation 34,34': spring

35: thread part 36,36 ': limit switch

38: indicator 39: cam groove

40: cover 41: hole

43: graduation

The present invention relates to a greenhouse switchgear for automatically opening and closing the side or skylight of a plastic house or greenhouse, and relates to an opening and closing control device of the greenhouse switchgear to control the opening and closing time of the switchgear by a simple operation from the outside.

The switchgear is shown in Utility Model Registration Application No. 93-32203 filed by the applicant.

The switch uses two limit switches for the forward and reverse rotation of the motor, and the limit switch is installed at one side of the switch to be turned on and off according to the rotation amount of the motor.

When the opening control limit switch is connected when opening the skylight or the side by the forward rotation of the motor, the opening operation is stopped. When closing the skylight or the side window by rotating the motor, the closing operation is stopped when the closing control limit switch is connected.

Therefore, by changing the position of the limit switch it is possible to control the opening and closing of the skylight or side windows.

For this purpose, the limit switch installation position has been changed by installing the limit switch on the moving shaft and then rotating the moving shaft with a screwdriver, but it is inconvenient to operate because the driver must be used. It was difficult to confirm the exact position movement because it must be confirmed by.

The present invention allows the user to easily control the opening and closing of the switchgear using a screwdriver or a hand in consideration of the above points, while enabling the precise confirmation of the opening and closing degree of the switchgear by a scale. After installing the cam gear as possible, the contact point of the limit switch is turned on / off according to the position change of the cam gear, but the cover surrounding the cam gear is made transparent and the scale is drawn on the cover so that the exact position can be checked by the cam gear. Is done.

The present invention aims at simplifying the opening and closing operation of the switch and making it possible to check the opening and closing point from the outside.

A worm gear is installed on one side of the switch to reduce and transmit the rotation of the shaft, and a gear part is formed at the tip of the rotating shaft in which the worm gear is defective. The cam gear is installed in a spring-tight manner, the cam gear is provided with a limit switch, and the gear train is characterized by being covered with a transparent cover having a scale.

The present invention forms one side of the shaft as a worm, protrudes to one side of the switch, and then engages the worm gear with the worm to reduce the rotation ratio, and forms a gear portion in the axial direction at the distal end of the rotating shaft coupled to the worm gear and the rotating shaft at the gear portion. Combining the cam gear carried by the extrapolated spring to the cam groove formed on the outer side of the cam gear is installed a limit switch and the cam gear is rotated when pressed toward the worm gear and rotated by the worm gear when pressed by the spring.

Therefore, by pressing the cam gear with a hand or driver and rotating it to change the position of the cam groove, the contact state of the limit switch can be adjusted. At this time, the scale is drawn on the cover to check the exact working distance according to the rotation of the cam gear.

Referring to the present invention in detail based on the accompanying drawings as follows.

The present invention in the switchgear 20 is installed in a greenhouse or the like to reduce the rotational power of the motor 10 to rotate the shaft 21 to open and close the skylight or side window,

The worm 25 which protruded and processed one side of the shaft 21 to one side of the switch 20,

A worm gear 31 engaged with the worm 25;

Rotating shafts 33 and 33 'supporting the worm gear 31 and being rotated together with the worm gear 31 and processing the threaded portion 35 in the axial direction at the front end thereof;

Cam gears 32 and 32 'coupled to the rotary shafts 33 and 33' and having a cam groove 39 and a screw groove 37 formed therein;

Springs 34 and 34 ', which are extrapolated to the rotation shafts 33 and 33' to support the cam gears 32 and 32 ';

Limit switches 36 and 36 'whose contacts are selected according to the cam groove 39 positions of the cam gears 32 and 32';

A transparent cover 40 formed with a scale 43 is formed around the gear train and the switch, and has a hole 41 for operating the cam gears 32 and 32 'from the outside.

Here, the cam gears 32 and 32 'are supported by the springs 34 and 34' so that when the gear unit 35 is coupled, the cam gears 32 and 32 'are rotated together with the rotation shafts 33 and 33' and the screw groove 37 is screwdriver. When pressed by hand, the springs 34 and 34 'are compressed and disengaged from the gear part 35 so as to be freely rotatable irrespective of the rotational shafts 33 and 33'. After setting as it is, when the driver or the hand is released, it is coupled to the gear part 35 while being returned to its original position by the springs 34 and 34 '.

The set position of the cam groove 39 can be adjusted to the desired position by looking at the scale 43 drawn on the cover 40.

The position movement of the cam groove 39 means adjustment of the time at which the contacts of the limit switches 36 and 36 'are turned on, which means that the cam groove 39 controls the opening and closing of the skylight or the side window.

The wire 30 is connected to the limit switches 36 and 36 'to control the operation of the motor 10 according to the on / off of the limit switches 36 and 36'.

The skylight and side opening and closing operation of the switch 20 are as follows.

When the motor 10 rotates, the helical gear 11 formed on the shaft rotates, and the helical gear 22 engaged with the helical gear 11 rotates as the helical gear 11 rotates.

At this time, the motor 10 has the opposite direction of rotation during the window opening operation and the window closing operation.

When the helical gear 22 rotates, the worm 23 formed on the shaft of the helical gear 22 rotates, and the shaft 21 rotates by rotating the worm gear 24 according to the rotation of the worm 23.

The shaft 21 rotates at a low speed compared to the rotation of the motor 10 by the deceleration of the worm gear 24, but the driving force is increased.

The shaft 21 is connected to the skylight or the side opening and closing device to open and close the skylight or the side according to the rotation of the shaft (21).

The forward and reverse operation of the motor 10 is performed by conversion of power polarity in a control device (not shown).

The present invention projects one side of the shaft 21 to the side of the switch 20 to form a worm (25).

The worm 25 is rotated in the same manner as the shaft 21.

The worm 25 is engaged with the worm gear 31 to reduce the rotational speed of the worm 25 to the worm gear 31.

The rotary shafts 33 and 33 'are coupled to the worm gear 31 so that the rotary shafts 33 and 33' are rotated together with the worm gear 31.

At this time, the screw shaft 35 is formed in the axial direction at the ends of the rotation shafts 33 and 33 ', and the cam gears 32 and 32' are coupled to the screw portions 35, and the cam gears 32 and 32 'are engaged. Is touched by springs 34 and 34 'extrapolated to the rotary shafts 33 and 33'.

When the cam gears 32 and 32 'are pushed into the screw groove 37 by pushing or pushing the screwdriver, the cam gears 32 and 32' are pushed while the cam gears 32 and 32 'are pushed. The cam gears 32 and 32 'are freely rotated by being disengaged from the screw part 35 at the tip of the rotary shafts 33 and 33'.

If the cam gears 32 and 32 'are not pushed, they are coupled to the threaded portion 35 by the springs 34 and 34' and the cam gears 32 and 32 'are rotated by the rotation of the rotary shafts 33 and 33'. Will also be rotated.

As a result, the cam gears 32 and 32 'are rotated with the rotation of the motor 10.

Accordingly, when the limit switches 36 and 36 'are installed in the cam gears 32 and 32', the limit switches 36 and 36 are in accordance with the degree of rotation of the motor 10 (i.e., the opening and closing of the skylight or side window). ') Can be operated to control motor 10 drive.

At this time, when the limit switches 36 and 36 'are operated in accordance with the position of the cam groove 39 provided on the surfaces of the cam gears 32 and 32' is selected.

That is, when the limit switches 36 and 36 'meet the cam groove 39 quickly as the cam gears 32 and 32' rotate, the operation of the motor 10 is quickly stopped. .

Therefore, the user can control the rotation degree of the motor 10, that is, the opening and closing degree of the skylight or the side by adjusting the position of the cam groove 39 and the limit switch 36, 36 'by adjusting the position of the cam groove 39. have.

The position adjustment of the cam groove 39 can be freely adjusted by turning the cam gears 32 and 32 'by pressing the cam gears 32 and 32' by hand or a screw inserted into the screw groove 37, and then rotating them.

Therefore, the user can adjust the opening and closing of the skylight or side window by using a screwdriver or hand.

On the other hand, the chondroll device is covered with a screw 42 by the transparent cover 40, and the graduation 43 and the cam gear 32, 32 'around the hole 41 of the transparent cover 40 Next, the indicator 38 is drawn so that the degree of opening and closing can be controlled according to the degree to which the indicator 38 points to the scale 43.

Therefore, the user can control the opening and closing to the desired position without confirming the actual opening and closing degree simply by adjusting the indication table 38 of the cam gear 32, 32 'to the desired scale 43.

The rubber cover is inserted between the cam gears 32 and 32 'protruding from the cover 40 and the cover 40, even if the cam gears 32 and 32' are moved by a driver or a hand. It maintains airtightness with 40) to enable waterproofing.

At this time, the shape of the baring for waterproofing the transparent cover 40 and the cam gear 32, 32 'may be any.

Meanwhile, in the present invention, the operation direction of the cam gears 32 and 32 'may be installed in the up and down direction of the switch 20 and may be installed in the left and right directions.

As described above, the present invention can easily control the opening and closing degree of the switch by a drag or a hand, and also has the effect of checking the opening and closing degree based on the scale.

Claims (1)

In the switchgear 20 which opens and closes a skylight or side window of a greenhouse by the rotation of the shaft 21 which reduced the rotational power of the motor 10, the worm which protruded and processed one side of the shaft 21 to one side of the switch 20 is processed. 25, a worm gear 31 engaged with the worm 25, and a rotating shaft supporting the worm gear 31 and being rotated together with the worm gear 31 and processing the screw portion 35 in the axial direction at the tip thereof. ) 33 ', cam gears 32 and 32' coupled to the rotary shafts 33 and 33 'and having cam grooves 39 and screw grooves 37 formed therein, and the rotary shafts 33 The contact points are extrapolated to (33 ') springs 34 and 34' for holding the cam gears 32 and 32 'and the cam grooves 39 of the cam gears 32 and 32'. Transparent cover 40 formed with a scale 43 together with a selected limit switch 36, 36 'and a hole 41 surrounding the gear train and the switch and operating cam gears 32, 32' from the outside. Opening and closing of the greenhouse switchgear comprising a) Troll device.