WO1995018339A1

WO1995018339A1 - Miniature boiler

Info

Publication number: WO1995018339A1
Application number: PCT/CN1994/000063
Authority: WO
Inventors: Guoxiong Xiao
Original assignee: Guoxiong Xiao
Priority date: 1993-12-30
Filing date: 1994-08-22
Publication date: 1995-07-06
Also published as: AU7489394A

Abstract

This invention provides a miniature boiler which can be feeded water automatically by a lever-type float. The boiler is composed of a body, a lid and a rubber sealing-ring located in the connection of the body and the lid. A feed water valve and a steam jet are mounted in the lid. There is a float connected to the feed water valve through a lever in the body. In addition, the bottom of the body can be made into a concave-inward or corrugated shape.

Description

Micro-type stove

Technical field

The Ming relates to a boiler, in particular to a multifunctional household mini-boiler, which can be used for domestic heating, boiling water, showering, cooking food and steam disinfection.

Background technique

Except for a few places with central heating, seasonal heating is a troublesome task for most households. In order to solve this problem, the inventor of this application filed a Chinese invention patent application No. 93110682. 6, April 25, 1993, and obtained a patent right on May 31, 1994. The utility model transforms the existing pressure cooker used in the home into a micro-boiler capable of generating steam, and can automatically add water, thereby overcoming the shortcomings of the general steam boiler which is bulky and not suitable for home use. Referring to FIG. 1, this patent proposes an “automatic steaming steam pot”, which includes a pot body 1, a pot lid 4, a rubber seal 3, and a lid 4 which are fastened with a water inlet pipe 12 and a steam outlet nozzle 5, and a water inlet pipe. 12—The end is closed, with a side hole 9 drilled in the middle, a rubber gasket 11 sleeved on the upper part, a hollow pontoon 2 in the pot body 1, a sealing tube 13 hinged on the hollow pontoon 2, and the sealing tube 13 is sleeved on the inlet pipe 12 on.

However, the above-mentioned patent still has the following problems: ① The buoy is too large to make and reduces the evaporation surface; ② Sometimes it is easy to get stuck between the sealing tube and the water inlet tube; ③ The heat exchange area is small and the thermal efficiency is low; ④ It can only supply steam No water supply; ⑤ Poor insulation performance; ⑥ Safety cannot be guaranteed.

The object of the present invention is to provide an improved micro-boiler, which can overcome the above problems, thereby greatly improving the thermal efficiency.

Summary of the Invention

In order to achieve the above object, the present invention provides a micro-boiler, which includes a pot body, a pot cover, and a rubber seal at a joint between the pot body and the pot cover. A water inlet pipe and a steam nozzle are fixed on the pot cover. There is a buoy connected to the water inlet pipe, wherein the water inlet pipe is a valve body and a valve core structure, and the buoy is connected to the water inlet valve through a lever.

It is best to install a safety pressure limiting valve and a boiling water pipe on the lid.

It is better that the bottom of the pot is a concave conical shape. Fire tube.

It is best that the bottom of the pot is wave-shaped.

In addition, the micro-boiler of the present invention may be heated by internal electric heating. Compared with the prior art, the present invention has the following obvious effects: ① Because the water inlet pipe adopts a valve core and valve body structure, the buoy is connected to the water inlet pipe through a lever, which can reduce the volume of the buoy, thereby increasing the evaporation surface, and no inflow The problem that the water pipe and the sealing pipe are stuck; ② the bottom of the boiler body adopts a concave structure with a fire tube or a corrugated structure, which greatly increases the heat exchange area and improves the thermal efficiency; ③ in order to make the boiler available for both steam and water The water supply pipe was added to the pot lid; ④ The insulation performance and safety of the boiler have been improved due to the addition of a thermal insulation layer and a safety pressure limiting valve.

Other features and advantages of the present invention will become apparent from the following description of the preferred embodiments with reference to the accompanying drawings.

Overview of the drawings

FIG. 1 is a schematic diagram of an automatic water steaming pot in the prior art;

FIG. 2 is a schematic structural diagram of a first embodiment of a miniature boiler according to the present invention; FIG.

3 is an enlarged schematic view of a structure of a water inlet valve;

4 is an enlarged schematic view of another structure of a water inlet valve part;

5 is a sectional view of a second embodiment of the micro-boiler of the present invention;

FIG. 6 is an enlarged schematic diagram of an automatic water adding device and a safety pressure limiting valve;

FIG. 7 is a sectional view taken along line A--A in FIG. 5;

FIG. 8 is a schematic structural diagram of a third embodiment of the micro-boiler according to the present invention; FIG.

FIG. 9 is a bottom view of the micro-boiler in FIG. 8;

FIG. 10 is a schematic sectional view when the bottom of the miniature boiler is Archimedes spiral; FIG. 11 is a schematic bottom view of the miniature boiler in FIG. 10;

Fig. 12 is a schematic diagram of a fourth embodiment of the present invention.

Best Mode of the Invention

The preferred embodiments of the present invention will be described below with reference to the drawings.

First, referring to FIG. 2 and FIG. 3, the levitation type boiler of the present invention includes a pot body 101, a pot cover 104, and a rubber seal ring 103 at a joint between the pot body and the pot cover. A steam nozzle 105 is fixed to the center of the pot cover with a nut 113 A water inlet valve body 107 is fixed by a nut 108 on the side, a round hole-shaped valve cavity 114 is located at the lower part of the valve body, a water outlet hole 115 is opened at the upper part of the valve cavity, and a lever head 110 is provided at the lower part. The hole 116 for extension is inserted into the valve cavity 114 with a piston valve core 109. The head of the valve core is a cone. The lever head 110 is hinged on the arm 118 protruding from the lower part of the valve body 107 by a shaft 117. The lever head One end of 110 is hinged with the valve core 109, and the other end is fixedly connected with a lever 106, and the tail end of the lever is sleeved with a float 102. In normal use, the high-pressure hose 112 is sleeved on the steam nozzle 105, and the water inlet pipe 111 is installed on the water inlet valve body 107.

Fig. 4 shows another structure of the water inlet valve, in which the head of the valve core 109 'is a recessed circular hole with a ball inside, and the water inlet of the valve body 107 is sealed by the ball when the valve core is moved up. The remaining numbers in the figure correspond to the corresponding parts in FIG.

Next, a second embodiment of the present invention will be described with reference to Figs. 5-7.

As shown in Figs. 5 and 6, the micro boiler package ^ pot body 201, pot cover 204, and a rubber seal 203 located at the joint between the pot body and the pot cover. One side of the pot cover is fixed with a nut 208 with a water inlet valve body 207 and Water inlet joint 211, the lower part of the valve body 207 is provided with a circular hole-shaped valve cavity 214, the upper part of the valve cavity is provided with a water outlet hole 215, the lower part is provided with a hole 216 for the lever head 210 to extend into, and the valve cavity is sleeved with a piston valve core 209. The head is a cone, the lever head is hinged on the extension arm 218 of the lower part of the valve body with a shaft 217, one end of the lever head is hinged with the valve core 209, the other end is fixed with an S-shaped lever 206, and the tail end of the lever is covered with a float 202 . A safety pressure limiting valve body 229 is fixed with a nut at the center of the pot cover 204, and a pressure limiting cap 220 with a conical valve core 219 is placed thereon. A steam nozzle 205 and a steam valve 221 are fixed to the pot cover 204 with nuts, respectively. , The boiling water pipe 222 and the boiling water valve 224 extending below the liquid level in the pot body. The bottom surface of the pot body 201 is a concave cone shape, and a hollow fire tube 223 passing through the lower portion of the pot body 201 is distributed on the bottom surface.

The role of the hollow fire tube is to expand the heat exchange area and open the steam valve 221. The micro-boiler of the present invention can be used for steam. When the steam volume is large enough, if the steam valve 221 is closed and the water valve 224 is opened, the boiling water is under steam pressure. , Rises along the boiling water pipe 222, and flows out through the boiling water valve.

In the first embodiment, the pot lid and the pot body are engaged together, and in this embodiment, the pot lid and the pot body are fastened together with a bolt 226 and a nut 225. In addition, a heat-insulating layer 228 made of heat-insulating cotton and a thin colored metal plate 227 covering the heat-insulating layer 228 are also laid on the lid. The function of the thermal insulation layer 228 is to prevent heat loss and further improve thermal efficiency.

FIG. 7 is a bottom view of the embodiment shown in FIG. 5, showing the shape of the bottom of the pot.

Next, a third embodiment of the present invention will be described with reference to FIGS. 8-11.

As shown in FIG. 8, the levitation boiler of this embodiment includes a pot body 301, a pot cover 304, and The rubber sealing ring 303 at the connection between them, the steam cap 305 and the water inlet valve body 30 and the valve body 30, respectively, of the pot lid are fixed with nuts 313 and 308, respectively. The structure of the valve body is the same as in the previous two embodiments. The valve core 309 is hinged with the lever head 310, the other end of the lever head 310 is fixedly connected with an S-shaped lever 306, and the tail end of the lever is sleeved with a float 302. A large ring-shaped groove 330 and a small ring-shaped groove 331 which are recessed inward are distributed on the bottom of the boiler body of this embodiment. A radial groove communicating with the small ring-shaped groove 331 is provided inside the large ring-shaped groove 330. 341, there is a radial groove 340 on the outside of the large annular groove 330 that penetrates the pot body, and the radial grooves 340 and 341 are arranged apart (see FIG. 9).

In addition, referring to Figures 10 and 11, the bottom of the pot body can also use a recessed Archimedes spiral groove.

Various corrugated bottom grooves can be processed by stamping or welding.

Fig. 12 shows a fourth embodiment of the present invention. The structure of this embodiment is basically the same as that of the embodiment shown in FIG. 2, except that an electric heater 414 is added to the lower part of the pot, and the heating is fixed on the periphery of the lower part of the pot.

Industrial applicability

The micro-boiler of the present invention can be placed on a family's original stove (coal stove, gas stove, kerosene stove, electric stove), and provides shower, heating, boiling water, sauna, cooking, and poisonous functions for the family, so it is very practical . In addition, 80% of this product is stamped parts, which has high production efficiency and is suitable for batch production.

Claims

Rights request

1. A miniature boiler comprising a pot body, a pot lid, and a rubber sealing ball at a joint between the pot body and the pot lid; a water inlet pipe and a steam nozzle are fixed on the pot lid; and a buoy connected to the water inlet pipe is provided in the pot body It is characterized in that the water inlet pipe adopts a valve body and valve core structure at the connection point with the pot lid, and the float is connected to the water inlet valve through a lever.

2. The micro-boiler according to claim 1, wherein the valve body of the water inlet valve has a valve cavity, a water outlet hole is formed in the upper part thereof, and a valve core is sleeved therein, and one end of the lever is hinged to the valve body. The lower extension arm is hinged to the valve core, and the other end is connected to the buoy.

3. The micro-boiler according to claim 2, wherein the valve cavity is cylindrical, the valve core is a piston-type valve core, and a head thereof is a cone.

4. The levitation boiler according to claim 2, wherein the head of the valve core is a recessed circular hole with balls inside.

5. The micro-boiler according to claim 1, wherein a safety pressure limiting valve and a boiling water pipe are further provided on the lid, and the lid is covered with a thermal insulation layer.

6. The micro-boiler according to claim 1, wherein the bottom portion of the pot body is a concave conical shape, and the upper part is provided with a fire guide pipe passing through the lower part of the pot body.

7. The micro-boiler according to claim 1, wherein the bottom of the pot body is wave-shaped.

8. The micro-boiler according to claim 7, wherein a concave large annular groove and a small annular groove are distributed on the bottom of the waveform, and a small annular groove is connected to the inside of the large annular groove. There is a radial groove, and a large groove is provided on the outside with a radial groove that penetrates the outside of the pot.

9. The micro-boiler according to claim 7, wherein the bottom of the waveform is distributed with a concave Archimedes spiral groove.

10. The micro-boiler according to claim 1, wherein an electric heater is installed in a lower portion of the boiler body.

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