KR200235933Y1 - Power cut device of keeping warm coating opening and shutting machine for vinyl plastic hothouse - Google Patents

Abstract

The present invention relates to a thermal insulation switchgear for a vinyl house, and to provide a power cut device of a thermal insulation switchgear that can easily perform the setting work of the top dead center and the bottom dead center of the vinyl house. Such a power shut-off device includes a motor for generating a predetermined driving force, a speed reducer for reducing the rotational speed from the motor, a first torch gear receiving the driving force from the speed reducer, and a rotational speed from the first torch gear. According to the operation of the at least one deceleration disk, the first and second limit dog to receive the driving force from the reduction disk and to stop the insulating film at the top dead center and the bottom dead center of the plastic house, and the first and second limit dog And a first and second limit switch for interrupting the voltage path from the power supply to the motor.

Description

POWER CUT DEVICE OF KEEPING WARM COATING OPENING AND SHUTTING MACHINE FOR VINYL PLASTIC HOTHOUSE}

The present invention relates to a thermal insulation membrane switchgear for a plastic house, and more particularly, to a power cut device of a thermal insulation membrane switchgear capable of automatically opening and closing the insulation membrane.

In general, the vinyl house is covered with a thermal insulation film to maintain the internal temperature at a constant temperature, preferably at room temperature, and the thermal insulation film is opened and closed by a switch that rotates at a low speed.

That is, the conventional switchgear is to turn off the power switch manually when the top dead center and the bottom dead center when the heat insulating film is covered or peeled off the plastic house, the configuration of the switch is already well known technology Therefore, detailed description will be omitted. Additionally, the above-mentioned thermal insulation membrane switch is described in detail in the registration number 94957 (Power transmission device for thermal insulation switchgear of vinyl house), which was filed by the inventor on 06.02. 1993 and registered on 12.04. It is.

However, since the heat insulation membrane switchgear having the above configuration is difficult to visually measure the top dead center of the plastic house where the height is several meters or more, the rising heat insulation membrane passes through the top dead center and rolls down to the opposite downward slope. There are many problems such as falling down and damage to equipment.

On the other hand, as a conventional technique for solving such a problem, the applicant filed No. 97-18055 filed on July 3, 1997, the inventor of the present invention (name: thermal insulation of the plastic house is automatically cut off at the top dead center and bottom dead center) Power cut-off device of membrane switchgear) (hereinafter referred to as 'prior art').

However, this prior art had to set the limit switch by screwing the power shut-off device by the user turning the screw rod one by one.

That is, in order to set the limit switch, preferably to set the top dead center and the bottom dead center of the thermal insulation film, the screw rod has to be rotated several times (rotated), which not only causes the trouble of setting work but also causes the screw rod to be damaged during long-term use. Disadvantages are expected. In addition, the power cut-off device is complicated in structure to increase the cost of the thermal insulation switchgear, and the total size (size) of the switch is expected to be a disadvantage that is limited by the installation space.

Therefore, an object of the present invention for solving the problems as described above is the power of the heat insulation switchgear that can automatically cut off the power of the switch at the top dead center and bottom dead center of the plastic house when rolling up or unwinding the heat insulation film of the vinyl house In providing a blocking device.

Another object of the present invention is to simplify the configuration of the power cutoff device to provide a compact greenhouse heat insulating switch.

Still another object of the present invention is to provide a thermal insulation switchgear for a vinyl house, which can easily perform the setting work of the top dead center and the bottom dead center of the thermal insulation film.

The present invention according to the first aspect for achieving the above object, a motor for generating a predetermined driving force, a reducer for reducing the rotational speed from the motor, a first torch gear receiving the driving force from the reducer, First and second limit dogs for receiving the driving force from the first torch gear and stopping the insulating film at the top dead center and the bottom dead center of the vinyl house, and the voltage from the power supply unit to the motor according to the operation of the first and second limit dogs. It is composed of the first and second limit switch to block the path to implement the power cut-off device of the thermal insulation film switchgear for the plastic house to automatically cut off the power at the top dead center and the bottom dead center of the plastic house when the heating film is rolled up or down It was.

More preferably, the power cut-off of the thermal insulation switchgear is provided between the first torch gear and the first and second limit dogs, and further includes at least one or more reduction disks for reducing the rotational speed from the first torch gear. Implement the device.

1 is an exploded perspective view showing the configuration of a power cut device that can automatically open and close the insulating film for a vinyl house according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the heat insulating membrane switch shown in FIG. 1. FIG.

3 is a bottom view of the thermal insulation switch illustrated in FIG. 1.

Figure 4a to 4c is a schematic view showing the operating state of the power cut off device according to the present invention.

5A to 5B are schematic views showing the switching operation of the limit switch according to the operating state of the power cut-off device.

<Explanation of symbols for main parts of drawing>

10: motor 20: reducer

30: the first tochigi 34: the second tochigi

40: first reduction disk 48: second reduction disk

52: spring 54: first limit dog

56, 60: protrusion 58: second limit dog

62, 64 handle 84: cap

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, the thermal insulation film switchgear for a vinyl house, preferably the power transmission device for the insulation film switchgear is described in detail in Utility Model Registration No. 94957 and Application No. 97-18055 of the present inventors one embodiment of the present invention below Description of the configuration and operation according to the example will be described in advance that only the configuration and operation process of the power cutoff device that can be called the representative function. However, the embodiment according to the present invention is not limited to the present disclosure of the present inventors will be apparent that it can be applied to all the opening and closing device that can open and close the thermal insulation film for the vinyl house.

The configuration of the power cut-off device of the thermal insulation film switchgear for a vinyl house according to an embodiment of the present invention is as shown in FIGS. 1 and 2.

Referring to the configuration according to an embodiment of the present invention with reference to FIGS. 1 and 2, the motor 10 is a motor for forward / reverse rotation, and generates a constant driving force. The motor 12 is assembled with a shaft 12 for transmitting a driving force, the gear teeth are formed on the outer periphery of the shaft 12. A sun gear 14 is engaged with the shaft 12, and a rod-shaped idle gear 16 is integrally formed on the front surface of the sun gear 14.

On the other hand, the motor 10 is assembled to the various gears as described above is installed in the rear of the switch body 18, the front of the switch body 18, the conventional reducer 20 is assembled. That is, as shown in FIG. 2, the reducer 20 is formed of a plurality of planetary gears, and the reducer 20 is engaged with the idle gear 16 to receive a driving force. The reducer 20 has an inner side. A gear tooth is engaged with the internal tooth gear 22 formed along the circumferential surface, and a drive gear 24 having a spindle 26 in front of the internal tooth gear 22 is integrally formed. At this time, the spindle 26 is wound around the end of the insulating film is covered with a plastic house is fixed.

In addition, the drive gear 24 described above has a power cutoff device, which is a main component of the present invention, preferably a power to automatically cut off the power of the switchgear at the top dead center and the bottom dead center of the vinyl house when the heating film is rolled up or down. A cutoff device is installed, and the detailed configuration of such a power cutoff device will be easily understood by the following description.

An idle gear 28 is engaged with the above-described drive gear 24, and a first touch gear 30 is engaged with the idle gear 28. At this time, the idle gear 28 has a different number of gear teeth according to the width of the plastic house, preferably the width of the thermal insulation film. For example, when the width of the vinyl house is about 10 m, the idle gear 28a having densely formed teeth is used. When the width of the vinyl house is about 4 m, the interval between the teeth of the gear is large, that is, the idle gear ( An idle gear 28b having a larger diameter than 28a) is used.

A shaft 32 is integrally formed on the rear surface (right side in FIG. 1) of the first torch gear 30, and a second torch gear 34 is formed at the end of the shaft 32. The first speed reduction disk 40 having two gears is assembled at the end of the second torch gear 34, and the first speed reduction disk 40 is a driving force transmitted from the first torch gear 30. It serves to decelerate the rotational speed first. That is, the first small gear 36 and the second small gear 38 are installed on the front surface of the first speed reduction disk 40 while maintaining a predetermined distance from the center point, wherein the first speed reduction disk 40 In the center of the) the second torch gear 34 is assembled. In other words, the second torch gear 34 rotates in engagement with the first and second small gears 36 and 38.

A second gear is formed on the rear surface of the first reduction disk 40, as shown in Figure 2, the drive gear 42 has two gears and the gear teeth are formed along the outer circumference Disc 48 is assembled. That is, the third small gear 44 and the fourth small gear 46 are installed on the front surface of the second reduction disk 48 while maintaining a constant distance from the center point, and the second reduction disk 48 At the center of the end of the drive gear 42 is assembled. At this time, the driving force of the drive gear 42 is transmitted to the third and fourth small gears 44 and 46. The second speed reduction disk 48 is the rotational speed first reduced by the first speed reduction disk 40. It serves to slow down once more.

On the other hand, the first and second speed reduction disks 40 and 48, preferably the first, second, third and fourth small gears 36, 38, 44 and 46 having the above-described configuration, are formed in the switch body 18. It meshes with the internal gear 37 formed in the side surface, in order to transfer the driving force of the said 1st speed reduction disk 40 to the 2nd speed reduction disk 48. As shown in FIG.

As shown in FIG. 2, a cylindrical seating portion 50 is formed at the rear of the second reduction disk 48, and the seating portion 50 has a first limit dog (limit dog), which will be described later. 54 are combined. That is, a protrusion 54a is formed at the front of the first limit dog 54 to be fitted and coupled to the seating portion 50 of the second reduction disc 48, and as a side of the protrusion 54a, A projection 56 shaped like an arrow 'is formed. Wherein the spring 52 is coupled to the outer periphery of the seating portion 50 of the second speed reduction disk 48, which is not pulled together when the second speed reduction plate 48 is pulled back This is to avoid. That is, the spring 52 pressurizes the second deceleration disc 48 so as not to leave the original position at all times.

In addition, a rod-shaped handle 64 extends to the rear of the first limit dog 54, and a spring 90 and a second limit dog 58 are coupled to the handle 64. The spring 90 always maintains a constant distance between the first and second limit dogs 54 and 58 with a predetermined elastic force, in order to accurately position the protrusions 56.60 to be described later.

A cylindrical handle 62 is formed at the rear center of the second limit dog 58 so that the handle 64 is fitted, and one side of the handle 62 has an 'arrow' shaped protrusion 60. do. In this case, the protrusions 56 and 60 formed on the first and second limit dogs 54 and 58 may be formed in various shapes such as triangles and squares in addition to the 'arrows' shape, preferably the first and second limit described below. It is formed in a structure capable of switching the switches (72, 76). Each of the protrusions 56 and 60 switches the first and second limit switches 72 and 76 to be described later, and preferably, the power of the switch at the top dead center and the bottom dead center of the vinyl house when the heat insulating film is rolled up or down. It serves to set the first and second limit switches 72 and 76 so as to be automatically shut off. The thermal insulation membrane switch is automatically opened / closed by the configuration of the projections 56 and 60 formed on the first and second limit dogs 54 and 58 and the first and second limit switches 72 and 76 described later. Here, gear teeth are formed on the outer circumferences of the first and second limit dogs 54 and 58.

Meanwhile, rod-shaped first and second idle gears 66 and 70 are installed on the inner side of the switch body 18, and the second reduction disc 48 and the first and second limit dogs 54, 58) is assembled. That is, as shown in FIG. 1, the first and second idle gears 66 and 70 are integrally formed in one body, and grooves 68 are formed therebetween. Here, the second reduction disc 48 and the first limit dog 54 are engaged with the first idle gear 66, and the second limit dog 58 is engaged with the second idle gear 70. That is, the driving force of the second deceleration disk 48 is transmitted to the first and second idle gears 66 and 70, and thus the driving force is transmitted to the first and second limit dogs 54 and 58.

As shown in FIG. 2, first and second limit switches 72 and 76 are provided below the first and second limit dogs 54 and 58 to block the voltage path to the motor 10. On the upper end of the first limit switch 72, a guide roller for operating the first limit switch 54 to switch down the first limit switch 72 by operating downward, preferably in accordance with the pressing force of the protrusion 56. 74 is installed. In addition, the upper end of the second limit switch 76 is provided with a guide roller 78 to operate in accordance with the pressing force of the projection 60 of the second limit dog 58 to switch the second limit switch 76.

Finally, a normal packing 80 and a cover 82 made of a transparent material are assembled on the rear surface of the main body 18 in which the power shutoff device having the above configuration is assembled. In this case, the caps 84 are covered with the handles 62 and 64 protruding to the outside through the holes 82a of the cover 82, which is to prevent water from flowing into the inside of the switch body 18. .

As shown in FIG. 2, the cap 84 has a cylindrical shape in which one side is blocked, and a hole 88 is formed at an end surface thereof (hereinafter referred to as a 'bottom surface'). At this time, the hole 88 serves as a passage so that the outside air is always introduced in order to prevent the air inside the switch is contracted and expanded. In addition, the extension portion 86 is formed at the bottom edge of the cap 84 to prevent water (rain) from flowing into the switchgear through the hole 88.

Here, the insertion hole 90 to which the support rod 92 for fixing the switch to the plastic house is fixed to the bottom of the main body 18 is formed in the shape of a long hole as shown in FIG. . It is possible to adjust the flow interval of the support rod 92 in accordance with the change in the installation position of the switch, preferably as shown in Figure 2 to allow the support rod 92 to move slightly in the front / rear direction is unreasonable to the switch This is to prevent the load from being applied. That is, the long hole type insertion hole 90 is to be uniformly wound on both sides when the insulation film is wound in accordance with the operation of the switch.

Hereinafter, the method and operation state of the power cut device of the present invention configured as described above will be described in detail with reference to FIGS. 4 to 5.

First, when setting the top dead center of the vinyl house, preferably the point where the insulation film can be rolled up to the maximum when rolling up the thermal insulation film covered in the plastic house, first, the motor 10 is rotated forward (clockwise). Let's do it. Then, the driving force of the motor 10 is transmitted to the sun gear 14 → the idle gear 16 → the reducer 20 → the drive gear 24 → the spindle 26 through the shaft 12, in which the driving force is The rotation speed is decelerated by the reducer 20. Subsequently, the thermal insulation film is rolled up by the operation of the spindle 26.

At the same time, the driving force of the drive gear 24 is preferably a driving force whose rotational speed is reduced by the reducer 20 is transmitted to the idle gear 28, and then the first torch gear 30 → the second torch The gears 34 are transmitted in the order of the first and second small gears 36 and 38 → the internal gear 37 → the third and fourth small gears 44 and 46 → the second reduction disc 48. At this time, the driving force (rotational speed) transmitted from the second torch gear 34 is first decelerated by the first reduction disk 40, preferably the first and second small gears 36 and 38. The driving force transmitted from the deceleration disc 40 is secondly decelerated by the second deceleration disc 48. The driving force of the motor 10 is then decelerated by several orders of magnitude more than the initial rotational speed, which allows setting of the lower rotational speed when the first and second limit dogs 54 and 58 are turned by turning.

Subsequently, the driving force, that is, the driving force of the second speed reduction disc 48 is transmitted to the first idle gear 66, and is then transmitted in the order of the first limit dog 54 to the second limit dog 58.

Then, if it is thought that the thermal insulation film has been rolled up to the maximum, the worker grabs the handle 62 and pushes the second limit dog 58 forward in the state shown in Fig. 4A. Then, the second limit dog 58 is separated from the second idle gear 70 and positioned in the groove 68 as shown in FIG. 4B. Next, the operator grasps the handle 62 of the second limit dog 58 and rotates in one direction. Then, the projection 60 of the second limit dog 58 presses the guide roller 78 as shown in FIG. 5A, so that the second limit switch 76 is switched to drive the driving force to the motor 10. Is blocked. This sets the point at which the thermal insulation film is rolled up to the maximum, preferably the top dead center of the vinyl house.

Secondly, when setting the bottom dead center of the vinyl house, preferably the point at which the thermal insulation film can be lowered to the maximum when the thermal insulation film covered by the plastic house is lowered, first, the motor 10 is reversely rotated (clockwise). . Then, the driving force of the motor 10 is transmitted to the first limit dog 54 and the second limit dog 58 through the above-described power transmission process.

Then, if the insulation film is considered to have descended to the maximum, the operator grasps the handle 64 and pulls the first limit dog 54 backward in the state shown in FIG. 4A. Then, the first limit dog 54 is separated from the first idle gear 66 and positioned in the groove 68 as shown in FIG. 4C. At this time, the second reduction disk 48 is not pulled backward by the pressing force of the spring (52).

Next, the operator grasps the handle 64 of the first limit dog 54 and rotates in one direction. Then, the protrusion 56 of the first limit dog 54 presses the guide roller 74 as shown in FIG. 5B, so that the first limit switch 72 is switched to drive the driving force to the motor 10. Is blocked. This sets the point at which the thermal insulation film descends to the maximum, preferably the bottom dead center of the vinyl house. Thus, the top dead center and the bottom dead center of the vinyl house, that is, the point where the insulation film is rolled up to the maximum and the point which goes down to the maximum, are set, and thereafter, no setting is necessary.

On the other hand, when the user operates the thermal insulation membrane switch, the insulation membrane is automatically opened and closed (wound or unwinded). Subsequently, when the thermal insulation film reaches the set point, the first and second limit dogs 54 and 58 preferably drive the driving force of the motor 10 according to the above-described power transmission process as shown in FIGS. 5A and 5B. And the protrusions 56 and 60 formed on the first and second limit dogs 54 and 58 sequentially switch the first and second limit switches 72 and 76, and thus the first and second limit switches ( 72 and 76 cut off the power supplied to the motor 10. As a result, the insulating film is automatically stopped at the top dead center and the bottom dead center by the protrusions 56 and 60 of the first and second limit dogs and the first and second limit switches 72 and 76.

As described above, the present invention can automatically cut off the power of the switch at the top dead center and the bottom dead center of the vinyl house when rolling up or unwinding the heat insulating film of the plastic house. In addition, the setting of the upper and lower dead centers of the vinyl house can be simply set by simply turning the first and second limit dogs, which has the advantage of improving the reliability of the product as well as the convenience of the user. have.

In addition, the present invention can realize a compact thermal insulation switch by simplifying the configuration of the power interruption device by simply arranging the gears to cut off the power of the switch, instead of screwing the power shutoff device of the thermal insulation switch as in the prior art. In addition, there is an advantage that can improve the merchandise and marketability by reducing the cost of the switch.

In addition, the present invention can prevent the excessive load is applied to the switch by forming a hole in which the support rod is inserted into the long hole type, and both sides end when the insulation film is wound by receiving a uniform load regardless of the installation position of the switch There is a synergistic effect to make it evenly wound.

Claims (7)

A motor 10 for generating a predetermined driving force, a speed reducer 20 for reducing the rotational speed from the motor 10, and a spindle for opening and closing the thermal insulation film of the vinyl house by receiving the driving force from the speed reducer 20 ( In the thermal insulation switchgear composed of 26), A first torch gear 30 which receives the driving force from the reducer 20; First and second limit dogs (54, 58) receiving a driving force from the first torch gear (30) and stopping the thermal insulation film at the top dead center and the bottom dead center of the vinyl house; Protrusions 56 and 60 formed on one surface of the first and second limit dogs 54 and 58 and for setting the top dead center and the bottom dead center of the vinyl house; Switched according to the operation of the projections (56, 60), the thermal insulation film switchgear for the vinyl house, characterized in that composed of the first and second limit switches (72, 76) to cut off the voltage path from the power supply to the motor (10) Power breaker. The at least one speed reduction disk (40, 48) according to claim 1, wherein the speed reduction from the first torch gear (30) is reduced between the first torch gear (30) and the first limit dog (54). ) Is a power shut-off device of the thermal insulation switchgear for the vinyl house. The method of claim 2, wherein the reduction disk (40, 48) is A first deceleration disc 40 having first and second small gears 36 and 38 which mesh with the first torch gear 30 to rotate, and which firstly decelerate the rotational speed from the first torch gear 30. and; Third and fourth small gears 44 and 46 which rotate in engagement with the first reduction disk 40 are installed, and the second reduction disk 48 reduces secondary rotation speed from the first reduction disk 40. Power cutoff device of the thermal insulation switchgear for the vinyl house, characterized in that consisting of. 4. A spring (52) according to claim 3, characterized in that a spring (52) is provided between the second speed reduction disk (48) and the first limit dog (54) to always press the second speed reduction disk (48) to an initial position. Power shut-off device for thermal insulation switchgear for green house. The method of claim 1, Handles 62 and 64 are formed on the first and second limit dogs to manually adjust the positions of the protrusions 56 and 60, and the handles 62 and 64 penetrate water into the switch. A cap 84 for preventing is covered; The method of claim 6, wherein the end of the cap is formed with a hole for preventing the air inside the switch is contracted and expanded, the edge of the end surface is formed with an extension protruding to prevent water from flowing through the hole Power cutoff device of the thermal insulation switchgear for a vinyl house. According to claim 1, wherein the main body of the switch has an insertion hole to which the support rod for fixing the switch is coupled, the insertion hole is formed in the long hole type to adjust the flow interval of the support rod in accordance with the change in the installation position of the switch Power cutoff device of the thermal insulation switchgear for a vinyl house.