KR101995236B1 - Piston pump for hot water bolier of hot water mat - Google Patents

Abstract

The present invention relates to a piston pump for a hot water boiler of a hot water mat to improve natural circulation type water flow. According to the present invention, a driving part is eccentrically rotated to contract and expand a piston bag of a pumping part and water inlet and outlet pipes connected to the piston bag are connected to a circulation pipe, such that water flow is increased in a natural circulation type non-powered hot water boiler (water circulation speed is increased - performance improvement). In particular, one driving part motor operates a plurality of pumping parts such that a separated heating mat including distant heating can be manufactured at low manufacturing cost. Accordingly, the number of applied motors is reduced by half in comparison with a conventional impeller type circulation pump, thereby reducing an initial manufacturing cost, largely reducing the expense of after-sale services, such as post-replacement, and the like, and largely increasing maintenance workability.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a piston pump for a hot water boiler,

In the present invention, the driving part is configured to cause the piston bag of the pumping part to expand and shrink while eccentrically rotating, and the pumping part is connected to the circulating hose connected to the piston bag to improve the flow of water when applied to a natural circulating non- (2) can be operated through one driving unit motor, so that it is possible to realize an inexpensive manufacturing cost when manufacturing a separate heating mat including the original heating , It is possible to reduce the number of applications of the motor compared to the conventional impeller type circulation pump to 1/2, thereby reducing the initial manufacturing cost, as well as greatly improving the AS cost and maintenance workability of the after- To a piston pump for a hot water boiler for a hot water mat.

Generally, a hot water mat refers to heating water stored in a water tank with an electric heater of a hot water boiler circulating device to supply hot water generated by the water heater to a supply hose provided inside the hot water mat and circulating the water.

Accordingly, there is an advantage that the hot water mat can solve the problems of existing electric mats in which the electric heating element is built up, that is, the risk of fire or electric shock due to harmful electromagnetic waves and electric hot wire.

Meanwhile, a forced circulation type hot water boiler using an electric motor pump or the like is generally used according to a system in which hot water heated by an electric heating element is circulated in a conventional hot water boiler circulating apparatus for a hot water mat. In recent years, (Non-motorized) hot water boiler circulation system.

Accordingly, the natural circulation hot water boiler circulation apparatus includes a check valve body, a heater unit, and a power supply unit (PCB).

The water storage tank stores hot water circulated to the inside of the hot water mat and hot water to be recovered. The check valve body supplies water to the heater unit and prevents the water from flowing back in the course of heating the supplied water.

In addition, the heater unit heats the water and vaporizes some water to create the expansion pressure which is the driving force of the hot water circulation, and the power supply unit (PCB) controls the electric parts including the heater power supply, temperature, water level and pressure.

The natural circulation hot water boiler circulation device prevents the hot water heated by the blocking plate located inside the check valve body from flowing back to the water tank by the expansion pressure generated in the process of heating the water by the electric heater, The hot water is discharged to the hot water mat, and the hot water passing through the hot water mat is circulated in a manner that the temperature is lowered to the low temperature water and discharged to the water tank, and then supplied to the electric heater through the check valve body in the water tank.

In other words, this natural circulation (non-motorized) hot water boiler has a main technical point that it does not require an electric motor pump to heat and circulate hot water.

However, the natural circulation type hot water boiler which is actually being marketed is circulating the water by the pressure difference caused by the heating temperature, so that the flow of the water, that is, the flow rate is too slow, The problem is continuing.

1. Korean Registered Patent No. 10-0876939 (registered on December 24, 2009)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-described problems, and it is a technical object of the present invention to provide a pumping device for shrinking and expanding a piston bag of a pumping part while eccentrically rotating a driving part, (Water circulation rate is improved - performance is improved) when applied to a circulating non-powered hot water boiler.

In addition, the present invention is configured such that a plurality (two) of pumps can be operated through one driving unit motor to realize a low manufacturing cost in manufacturing a separate heating mat including the original heating, It is possible to reduce the applied quantity to 1/2, thereby reducing the initial manufacturing cost, and the AS cost such as replacement after exchange and maintenance workability can be greatly improved.

In order to achieve the above object, the present invention is configured such that a driving shaft 131 of a motor 130 is coupled to a fixing groove 121 of a circular cam 120 having a bearing 110 coupled to an outer circumferential surface thereof, A driving unit 100 disposed so that the machined position is eccentrically moved in one direction from a plane center of the circular cam 120 so that the circular cam 120 rotates eccentrically when the driving shaft 131 rotates; The contact end 213 of the movable plate 210 is pushed with respect to the bearing 110 of the driving unit so that the movable plate 210 approaches or separates from the fixed plate 220 when the circular cam 120 is eccentrically rotated And a pumping jacket 240 having a water inlet pipe 241 and a water outlet pipe 242 formed therein is coupled to one side of the fixing plate 220. The pumping jacket 240 is connected to a piston back extending from the central communication hole 243, When the movable plate 210 is moved toward or away from the fixed plate 220, the water inlet pipe 241 sucks the water into the piston back (not shown) A pumping portion 200 formed to discharge the water through the water pipe 242 through an inner space of the water pump 250; .

The pumping part 200 is a piston pumping structure of left and right shrinking type. When a plurality of the pumping parts 200 are applied for separation heating, the side of the movable plate 210 on both sides of the center line of the circular cam 120 of the driving part The guide plate 211 is formed on a surface of the movable plate 210 facing the fixed plate 220 and the fixed plate 220 is fixed to the guide plate 211 of the movable plate 210, A slider bar 221 is formed so as to correspond to the guide slot 211 and the slider bar 221. When the guide slot 211 and the slider bar 221 are fitted together, An elastic spring 230 is coupled to the outer circumferential surface of the movable plate 210 so that the movable plate 210 is moved forward or backward in one direction between the fixed plate 220 and the bearing 110.

At this time, the piston back 250 is preferably formed as a bellows-shaped corrugated tube 251.

In addition, the pumping unit 200 may be a piston pumping structure of an up-down shrink type. When a plurality of the pumping units 200 are applied for separate heating, the driving shaft 131 may have a long shaft structure. The circular cams 120 are formed so as to correspond to a set of pumping parts 200 while being spaced apart from each other by a predetermined distance and a fixing wheel 260 is assembled to the outer circumferential surface of the bearing 110 coupled to the circular cam 120 The fixed wheel 260 is connected by a connecting rod 270 extending from the movable plate 210 so that when the circular cam 120 rotates when the drive shaft 131 rotates, the fixed wheel 260 slips and fixes the outer peripheral surface of the bearing 110 The connecting rod 270 and the movable plate 210 connected to the wheel 260 are simultaneously lifted up and down so that the piston bag 250 is compressed or expanded or contracted (the water inlet pipe 241 sucks water to the piston back 250) And through the water outlet pipe 242) It is formed so as to.

In this case, the circular cam 120 in the other embodiment is formed to have an eccentric direction in which the plurality of spaced apart circular cams 120 are symmetrical with respect to each other, so that the piston back 250 of the pumping part 200 moves up and down alternately, .

As described above, according to the present invention, the driving unit is configured to cause the piston bag of the pumping unit to expand and contract while rotating eccentrically, and the pumping unit is connected to the circulating hose through the inlet and outlet pipes connected with the piston bag, (Water circulation speed is improved - performance is improved).

In addition, the present invention is configured such that a plurality (two) of pumps can be operated through one driving unit motor to realize a low manufacturing cost in manufacturing a separate heating mat including the original heating, It is possible to reduce the applied quantity to 1/2, thereby reducing the initial manufacturing cost and also greatly improving the AS cost such as replacement after exchange and maintenance workability.

In addition, the present invention has the effect of greatly reducing noise compared to the conventional impeller type circulation pump.

FIGS. 1 to 5 show an example of a piston pumping structure of left and right shrinking and expanding type as one embodiment of a piston pump according to the present invention,
6 is an exemplary view showing a piston pumping structure of an up-down contraction type as another embodiment of the piston pump according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings.

1 to 6, the present invention relates to a piston pump for improving water flow by applying to a natural circulation hot water boiler (a pressure difference circulation system by heater heating) 100 and a pumping unit 200.

The driving unit 100 is configured such that the driving shaft 131 of the motor 130 is coupled to the fixing groove 121 of the circular cam 120 having the bearing 110 coupled to the outer circumferential surface thereof, The machined position is arranged to be eccentrically moved in one direction from the plane center of the circular cam 120 so that the circular cam 120 rotates eccentrically when the drive shaft 131 rotates.

At this time, the motor is formed so as to be able to selectively apply either a general electric motor, a stepping motor, or a geared motor.

In addition, the driving unit is configured to control the flow rate of water by controlling the rotational speed of the motor.

The pumping unit 200 moves the contacting end 213 of the movable plate 210 against the bearing 110 of the driving unit to rotate the movable plate 120 relative to the fixed plate 220 during eccentric rotation of the circular cam 120, (210) are formed close to or spaced from each other.

In addition, the contact end 213 is formed such that a recessed groove is formed on a surface contacting with the bearing, wherein a height interval is formed so as to correspond to the thickness of the bearing, (Such that when the piston back is pumped, the bellows-shaped wrinkles are displaced in either direction). In this case, Do not strike - promote uniform and even water flow)

At this time, a pumping jacket 240 formed with a water inlet pipe 241 and a water outlet pipe 242 is coupled to one side of the fixing plate 220.

The pumping jacket 240 is formed such that the piston back 250 extending from the central communication hole 243 contacts the contact surface 212 of the movable plate after passing through the through hole 222 of the fixed plate, The water inlet pipe 241 is formed to suck the water and discharge the water through the inner space of the piston back 250 through the water outlet pipe 242 when the water inlet pipe 210 is moved toward or away from the fixed plate 220 .

The pumping part 200 is a piston pumping structure of left and right shrinking type. When a plurality of the pumping parts 200 are applied for separation heating, the side of the movable plate 210 on both sides of the center line of the circular cam 120 of the driving part And alternately alternately symmetrically and pumped.

In this embodiment, the movable plate 210 is formed with a guide box 211 on the surface facing the fixed plate 220, and the fixed plate 220 is fixed to the guide box 211 of the movable plate, When the guide box 211 and the slider bar 221 are fitted together, a sliding section is formed at regular intervals along the longitudinal direction.

At this time, an elastic spring 230 is coupled to the outer circumferential surfaces of the guide case 211 and the slider bar 221 so that the movable plate 210 moves forward or backward in the opposite direction between the fixed plate 220 and the bearing 110, .

Accordingly, the piston back 250 may be formed of a bellows-type corrugated tube 251. That is, when the outer circumferential surface is pressed, it means any type of piston type pumping capable.

Meanwhile, the pumping unit 200 may be a piston pumping structure of an up-down shrink type. When a plurality of pumping units 200 are used for separate heating, the driving shaft 131 may have a long axis structure.

A plurality of circular cams 120 are formed on the drive shaft 131 of the other embodiment so as to correspond to a set of pumping parts 200 while being spaced apart from each other by a predetermined distance. On the outer circumferential surface, a fixing wheel 260 is formed to be assembled.

At this time, the fixed wheel 260 is connected by the connecting rod 270 extending from the movable plate 210, and when the circular cam 120 rotates when the drive shaft 131 rotates, the outer peripheral surface of the bearing 110 slips The connecting rod 270 and the movable plate 210 connected to the fixed wheel 260 are simultaneously lifted up and down so that the piston back 250 is compressed or expanded or contracted (the water inlet tube 241 sucks the water to the piston back 250 Through the water outlet pipe 242).

In this case, the circular cam 120 in the other embodiment is formed to have an eccentric direction in which the plurality of spaced apart circular cams 120 are symmetrical with respect to each other, so that the piston back 250 of the pumping part 200 moves up and down alternately, .

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

100 ... driving part 110 ... bearing
120 ... Circular cam 121 ... Fixing groove
130 ... motor 131 ... drive shaft
200 ... pumping section 210 ... movable plate
211 ... guide compartment 212 ... contact surface
213 ... contact stage 220 ... fixed plate
221 ... slider rod 222 ... through hole
230 ... elastic spring 240 ... pumping jacket
241 ... inlet pipe 242 ... outlet pipe
243 ... communication hole 250 ... piston bag
251 ... bellows type corrugated box
260 ... fixed wheel 270 ... connecting rod

Claims (5)

The driving shaft 131 of the motor 130 is coupled to the fixing groove 121 of the circular cam 120 with the bearing 110 being coupled to the outer circumferential surface of the circular cam 120, A driving unit 100 which is disposed so as to be eccentrically moved in one direction from a planar central point of the driving shaft 131 so that the circular cam 120 rotates eccentrically when the driving shaft 131 rotates; The contact end 213 of the movable plate 210 is pushed with respect to the bearing 110 of the driving unit so that the movable plate 210 approaches or separates from the fixed plate 220 when the circular cam 120 is eccentrically rotated And a pumping jacket 240 having a water inlet pipe 241 and a water outlet pipe 242 formed therein is coupled to one side of the fixing plate 220. The pumping jacket 240 is connected to a piston back extending from the central communication hole 243, When the movable plate 210 is moved toward or away from the fixed plate 220, the water inlet pipe 241 sucks the water into the piston back (not shown) A pumping portion 200 formed to discharge the water through the water pipe 242 through an inner space of the water pump 250; A water pump for a hot water boiler of a hot water mat, wherein the natural circulation water flow is improved,
When a plurality of pumping units 200 are applied for separate heating, the pumping unit 200 is alternately pumped alternately while symmetrically moving the movable plates 210 on both sides of the center line of the circular cam 120 of the driving unit, A guide box 211 is formed on a surface facing the fixing plate 220 and the fixing plate 220 is formed with a slider bar 221 so as to correspond to the guide box 211 of the movable plate, And an elastic spring 230 is coupled to the outer circumferential surfaces of the guide case 211 and the slider bar 221 so that the fixed plate 220 is engaged with the outer circumferential surface of the guide case 211 and the slider bar 221, And the movable plate (210) is formed so as to move forward or backward in one direction between the bearing (110) and the bearing (110).
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