KR20210000202U - Heating distributor valve for boiler - Google Patents

Abstract

Heating distributor valve driving device according to the present invention, the valve body; A valve cover fixedly coupled to the lower portion of the valve body; A case for supporting the rotating body of the driving part of the valve; A stepping motor mounted on the driving unit case; A gear train coupled to the motor shaft of the stepping motor and rotated according to the driving of the motor; A friction gear that cancels power transmission in the middle of the gear train; A manual operation lever that is connected to the friction gear and can manually open and close the rubber ball of the valve; An eccentric crankshaft that is mounted on the output gear of the end of the gear train and rotates left and right according to the left and right rotation of the rotating body of the driving unit; A rubber ball mounted on the top of the eccentric crankshaft and rotating in a circular arc left and right; Eccentric crankshaft support for reinforcing eccentric rotation (circumferential rotation) of the rubber ball; It relates to a driving window that is composed of a lamp and easily opens and closes the flow of heating water.

Description

Heating distributor valve for boiler

The present invention relates to a heating distributor valve controlling each room of a boiler, and more particularly, to a valve driving device of a heating distributor to control individual heating demand in a plurality of rooms.

This design relates to an electric switch for a heating distributor that distributes and supplies heating water in several directions, and is synchronized with a DC motor as in the prior art document (Public Patent No. 10-2011-0127911, Registered Utility Model No. 20-0156573). Although a heating distributor valve device using a motor has been devised, the conventional technology using a DC motor is combined with changing the power transmission direction of the power transmission shaft by using a worm gear (rotation speed reduction) (between the worm gear rotation shaft and the spur gear rotation shaft). There was an irrationality such as power cutoff and connection for the manual opening and closing function. The conventional technology using a synchronous motor has a disadvantage that it is difficult to miniaturize the product due to the size of the motor. A device such as a sensor or a micro switch that detects the rotation position was absolutely necessary. In consideration of these disadvantages, the present design uses a small stepping motor, a power connector (gear train), an eccentric crankshaft, and a rubber ball for opening and closing the valve. Was made to open and close very easily.

The present invention was devised in consideration of the above-described conventional circumstances, and its purpose is to improve product reliability through simplification and miniaturization of products, and to lower manufacturing costs and provide at low prices

In order to achieve the above object, this paper makes the valve opening and closing operation simple by means of a stepping motor (left and right rotation), a power transmission gear train (gear train), an eccentric crankshaft, and a rubber ball mounted on the eccentric crankshaft. At the same time, the manual switching operation of the conventional method (DC motor/synchronous motor driving method) required a device with a clutch function to connect or disconnect the power, but this draft is friction in the middle of the power transmission gear train of the stepping motor (left and right rotation). By installing a gear structure, it is possible to easily open and close manual operation in case of power failure or product failure only by operating the lever protruding from the outside.

In this way, this paper eliminates the need for any sensor or switch for detecting the opening/stop position by using a stepping motor. It reduces the manufacturing cost of the product and simplifies the function to improve the reliability of the product. In addition, the eccentric crank opening and closing method inside the valve body The opening and closing structure of the valve is made very simple by using the circular rotation of the rubber ball installed on the shaft, and the eccentric crankshaft tilt guide is installed on the upper and lower sides of the eccentric crankshaft to make the circular rotation of the rubber ball very easy. At the same time, when the valve is shut off, the water hammer and the blocking power of the valve are reinforced due to the oscillation and clearance of the eccentric crankshaft. Also, the friction gear in the middle of the power transmission gear train of the stepping motor In case of power failure or special case, the valve can be opened and closed manually by turning the manual lever exposed to the outside rather than the clutch structure of the conventional power connection/disconnection.

Figure 1 is an exploded perspective view of this paper.
2 is an exploded perspective view with different viewing directions in this paper.
Figure 3 is a cross-sectional view of this paper
Figures 4 and 5 are the valve opening and closing diagrams in this paper.
Figures 6 and 7 are explanatory diagrams of manual opening and closing
Figures 8 and 9 are perspective views of the driving part in this paper (remove the external valve body and case)
Figure 10 is a cross-sectional view of the friction gear assembly in this paper
Figure 11 is an exploded perspective view of the friction gear part in this paper.
12 is a cross-sectional view of the valve body in this paper
Fig. 13 is a diagram of the heating piping configuration to help understand the draft.
Figure 14 is a valve structure diagram of a conventional product
Fig. 15 is a structural diagram of a metal ball valve type valve part of a conventional product
Fig. 16 is a structural diagram of a conventional rubber packing valve part

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. As shown in FIGS. 1 to 4 and 5, the heating distributor opening/closing device of the present invention includes a valve support plate ( 2) is mounted and sealed, and an internal space is provided in the inner space of the valve body (1), which is sealed by the valve support plate (2), so that the rubber ball (4) can rotate in a circumferential shape. Holes are provided to open and close the heating water. In addition, the nipples on both sides of the valve body are composed of female threads (PT) and male threads (PF) type screws so that the boiler piping can be connected, and the valve body (1) and valve A rubber seal (5) is assembled between the support plates (2) to prevent leakage of heating water. An eccentric crankshaft (3) is mounted in the center of the valve plate to close with the valve body, and it is formed in a bush form so that it can be rotated. Resin (PPS) The eccentric crankshaft (3), which is mounted on the valve plate and rotates, is sealed with the valve plate by three O-rings (6), and a rubber ball (4) is located on the upper eccentric shaft of the eccentric crankshaft (3). The rubber ball 4 mounted on the upper eccentric shaft of the eccentric crankshaft 3 is supported by a guide guide (Fig. 12) provided inside the upper side of the valve body. As the eccentric crankshaft 3 rotates, it prevents inclination and prevents the separation of the rubber ball. Therefore, the E-type stopper ring, which is mainly used to prevent the separation of the rubber ball, is not required. 8) is installed to facilitate rotational friction of the eccentric crankshaft, and an E-type stopper ring (9) is assembled at the lower part of the washer to prevent the eccentric crankshaft from disengaging from the valve support. Valve driving part to drive the eccentric crankshaft (3) (Fig. 8, Fig. 9) is mounted on the lower side of the valve support (2) and is composed of a drive unit case 10 and a gear train operating inside the drive unit case (Fig. 8).The drive of the gear train is driven by a stepping motor 31. And the stepping motor 31 is mounted on the lower side of the driving unit case 10, and the motor cover 31 The first gear (11) of the drive unit gear train is assembled and rotated on the output shaft of the stepping motor, and is engaged with the gear part of the second gear (12). The pinion part of the second gear (12) is 3 The first gear (friction gear: 13, 14, 15, 16) is engaged, and the fourth gear (18) is engaged with the eccentric crankshaft gear (20) and rotates so that the rubber ball (4) is opened and closed. The rotation of the gear train is stepped. It is driven in the forward or reverse direction according to the drive of the motor 30, and the stepping motor 30 opens and closes the valve by rotating in the forward or reverse direction as much as a desired number of rotations by the pulse signal of the controller of the stepping motor. In the valve opening/closing method using a synchronous motor, a sensor or micro-switch that detects the rotation position when forward rotation and reverse rotation are made is required. On the other hand, in the stepping motor driving method, the position detection sensor or the rotation position such as a switch is detected. The function is not required, and the valve is stopped by holding the rotation origin by forced restraint by rotating at the maximum amount of rotation in the desired direction (opening direction) using a pulse signal. The origin of restraint is stopped at a certain position by the rotation range of the manual control lever) When the valve is shut off again, if a pulse signal is given by the desired amount of rotation in the opposite direction from the home position, it rotates as much as the number of pulse signals. In addition, a friction gear is installed in the middle of the gear train (3G gear), so when manually opening and closing the valve, the manual installed in the pinion gear on the top of the 4th gear. The valve can be opened and closed very easily just by turning the operating lever. The structure of the friction gears (13 to 17) consists of a gear and a friction plate as shown in Figs. 10 and 11, and the friction force can be adjusted by screw tightening force. It is a structure and the frictional force of the friction gear should be greater than the operating rotation power of the rubber ball, but it is a torque force that can be easily turned with a manual operating lever. In addition, the eccentric crankshaft guide at the lower end of the eccentric crankshaft It is installed inside the driving part case to prevent the eccentric crankshaft from tilting by reinforcing the axial tilt generated by the torsion force acting when operating the manual lever together with the guide groove provided inside the upper side of the valve body.

1: Valve body
2: Valve support plate
3: Eccentric shaft (eccentric crankshaft)
4: Rubber ball
5: Sealing, 6: O-ring, 7: Screw
8: Washer, 9: E-stopper ring
10: Case (drive part case)
11, 12, 13, 18: Gear
14: Friction plnlon, 15, 16: Friction gear
17: Bush, 19: Lever (manual control lever), 20: Valve gear
21: Eccentric shaft guide (eccentric crankshaft rotation guide)
22: Gear pin,
30: Stepping motor
31: Motor cover

Claims (4)

In each room control heating distributor valve for distributing heating water sent from a boiler to each heating pipe, a rubber ball rotating in a circular arc in an inner space of a 2WAY valve body; An eccentric crankshaft that rotates a rubber ball in a circular arc; A gear train driving the eccentric crankshaft; A stepping motor driving a gear train; Friction gear installed in the middle of the gear train: a manual control lever installed in connection with the friction gear; Heating distributor valve consisting of lights The method of claim 1
A heating distributor valve configured to manually open and close the valve by using a stepping motor and a friction gear connected to the middle of the gear train (Fig. 11). The method of claim 1 or 2
Heating distributor valve, characterized in that the stop position of circular rotation of the rubber ball installed on the eccentric crankshaft is controlled by the rotation amount of the manual operation lever 19 (Fig. 9) without the need for a position sensing sensor or switch device. The method of claim 1
A heating distributor valve, characterized in that a rotation guide circumferential groove (Fig. 12) and an eccentric crankshaft rotation guide (21) are provided on the upper and lower sides of the eccentric crankshaft of the valve device.

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