JP2583960Y2 - Steam exhaust device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steam discharging device used for a disinfecting storage machine for tableware and the like.

[0002]

2. Description of the Related Art As a conventional steam discharge device of this type, a device provided with a solenoid or a manually opened / closed damper (for example, Japanese Utility Model Publication No. 56-30331) (hereinafter referred to as the former) or a damper is provided. There is a case where a steam discharge cylinder is provided which is always open without any trouble (hereinafter referred to as the latter).

[0003]

However, the former requires a control circuit including an electric power and a thermoswitch to operate the solenoid, which complicates the structure, increases the number of causes of failure, and requires time for maintenance. Costly. In addition, the manual operation has a troublesome operation. On the other hand, in the latter, it is difficult to control the temperature and steam inside the machine, and the heat efficiency is poor due to the need for more electric power,
Since the steam discharge cylinder is always open, sanitary problems such as intrusion of garbage, pests, and rats have occurred.

The present invention has been made to solve such problems of the prior art, and an object of the present invention is to provide a vapor discharge device which has a simple structure, is easy to assemble, and has a reliable operation.

[0005]

In order to achieve this object, according to the present invention, a high-temperature generating chamber in which hot air can circulate and a high-temperature set value can be maintained is communicated with the inside and outside of the high-temperature generating chamber. And a damper provided outside the discharge port to normally close the discharge port of the steam discharge pipe, and inserted into the steam discharge pipe to protrude inside the damper. A shaft mounted in the steam discharge tube for slidably supporting the shaft, and reaching a set value of a high temperature generated in the high temperature generating chamber mounted in the frame. Shape memory alloy previously operatively operative to slide said shaft
Tableware, etc., provided with a damper unit consisting of a spring
A steam discharge device in a disinfection storage machine, wherein the damper
The unit is connected so that the upper part of the high-temperature chamber communicates inside and outside.
Crossed the axis of the steam discharge cylinder
A frame-like frame mounted on the inner wall so as to protrude;
Vertically penetrate the center of the steam discharge tube of the frame,
Slidably provided so as to be substantially aligned with the axis of the steam discharge cylinder.
Shaft and the steam provided at the upper end of the shaft.
Dust fixed to normally close the top discharge port of the discharge cylinder
And the shaft so as to be located within the frame.
Shaft joint provided in the
Upper half of the shaft between the housing and the ceiling wall of the frame
Bias spring wound around the shaft and the shaft joint
And the lower half of the shaft between the floor walls of the frame
Made of shape memory alloy that can be extended and deformed at a set temperature
It is characterized by comprising a spring.

[0006]

According to the above arrangement, the hot air is circulated if the apparatus is started after storing the washed dishes and the like in the high-temperature generating chamber. At a normal temperature before the room temperature reaches the high temperature set value, the damper closes the steam discharge port, but before the temperature reaches the high temperature set value, the shape memory alloy acts on the shaft to cause the shaft to move. Slides axially along the frame,
The central part of the damper is supported and moved outward in a well-balanced manner, and the steam discharge port is reliably opened to release the heated steam to the outside while simultaneously increasing the temperature in the high-temperature generating chamber. To the set value. At that time, the shape memory alloy keeps the posture while moving the damper outward, disinfects and dries the tableware, etc., and if the operation of the device is stopped, the indoor temperature drops below the set value. However, the shape memory alloy is restored to a normal posture, and the restoring operation slides the shaft in the opposite direction to the above-described operation, and supports the center portion of the damper to ensure a well-balanced inward movement. Move and secure the outlet
To close. As described above, the steam discharge device of the present invention has a structure.
Is simple, with few parts and easy to assemble.
Reduce costs.

[0007]

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

FIG. 1 is a longitudinal sectional view of a damper unit which is a main part of a steam discharge device, and mainly includes a steam discharge tube 1, a damper 2, a shaft 3, a frame 4, a shape memory alloy spring 5, and the like. Is done.

The steam discharge cylinder 1 is provided in the form of a rectangular tube, and is provided above the disinfecting storage device 6 (FIG. 3) so as to communicate with the inside and outside of the high-temperature generating chamber 7 thereof. 3, a frame 4, a shape memory alloy spring 5, and the like. The shape of the cylinder may be a cylinder.

The damper 2 has a larger area than the cross section of the steam discharge tube 1 and has a shaft 3 protruding at the center of the rear surface. The discharge port 8 is normally closed at the upper end of the steam discharge tube 1. It is provided to be. The damper 2 may have the same area as the cross section of the steam discharge tube 1, and a stopper (not shown) for restricting the operation of the damper 2 may be provided in the discharge tube 1.

The shaft 3 has an upper half 9 and a lower half 10
A male screw (not shown) formed at the upper end of the upper half 9 penetrates from the center of the lower surface of the damper 2 to the surface, and the penetrated upper end is connected to the nut 12. The shaft 3 is fixed to the frame 4 so as to be slidable up and down along the axis of the steam discharge tube 1.

The frame 4 has a box shape with both sides open and one end is fixed to the inner wall surface of the steam discharge tube 1 via a rivet 13, and the other end crosses the axis 14 of the steam discharge tube 1. Extending.

The shaft 3 is located at an axial center of the steam discharge cylinder.
Through the frame 4 up and down in the center, before the shaft joint 11 that bulges in the frame 4 is positioned
The upper end of the shaft 3 supports the center of the damper 2 and
Do not cause a loss of balance when the damper 3 moves up and down.
It has become.

A bias spring 16 is wound around the upper half portion 9 of the shaft between the shaft joint 11 and the ceiling wall 15 of the frame 4, while the bias spring 16 is wound around the shaft joint 11 and the floor wall 17 of the frame 4. A shape memory alloy spring 5 is wound around the lower half portion 10 of the shaft.

The shape memory alloy spring 5 maintains a contracted normal state at a normal temperature (a set temperature, that is, a temperature equal to or lower than the temperature stored in the spring), and a bias spring 16 extending from above to below the shaft joint 11. The biasing force is good, so that the damper 2 closes the discharge port 8 above the steam discharge tube 1. At a set temperature of 57 ° C., the shape memory alloy spring 5 changes to the expanded state and the shaft joint is changed. 1
1 has an upward biasing force, and the damper 2 has a discharge port 8.
Is to be released.

In FIG. 3, reference numeral 18 denotes a heating chamber which is formed on the side of the disinfecting storage machine 6 and communicates with the high-temperature generating chamber 7 below; 19, a cupboard; 20, a table basket;
22 is a large fan for circulating hot air, 23 is a heat source for communicating the outlet of the fan 22 with the heating chamber 18, and 24 is a fixture for assembly.

The high-temperature generation chamber 7 is at least 60 hours after the start of operation.
A room temperature of 80 ° C. to 100 ° C. is secured by the minute, and the room temperature rises to the set room temperature of 80 ° C. to 100 ° C., and at 57 ° C., the shape memory alloy spring 5 is extended. The damper 2 is opened by the change of the temperature, and after reaching the set room temperature of 80 ° C. to 100 ° C., the high temperature range of 80 ° C. to 100 ° C. is continuously maintained by the switch ON / OFF until 90 minutes, Thereafter, the operation was stopped, the room temperature was lowered, and at the set temperature of 57 ° C. during the lowering, the shape memory alloy spring 5 returned to the normal state of contraction,
The damper 2 closes the discharge port 8.

The reason why the damper 2 is opened at a low temperature of 57 ° C., which is a set room temperature of 80 ° C. to 100 ° C., is to release moisture quickly before reaching the dew point temperature. Rises to 80 ° C to 100 ° C.

Next, the operation of the steam discharge device constituted by the above-described damper unit will be described.

In FIG. 3, when the large-size fan 22 for circulating hot air is operated in a state in which the tableware 21 with water droplets is stored in the disinfecting storage machine 6 after being washed, and sealed, the water is discharged from the heat source 23 thereof. The hot air is discharged from below the heating chamber 18 toward above the high-temperature generating chamber 7 and guided to the cupboard 19,
It is circulated by being sucked into the intake port of the fan 22 after passing between the tableware 21 described in the tableware basket 20.

The heating in the high-temperature generating chamber 7 is continued by such circulation, and when the temperature reaches a predetermined temperature, that is, 57 ° C., the shape memory alloy spring 5 expands as shown in FIG. The biasing force overcomes the biasing force of the bias spring 16 and exerts an upward force on the shaft joint 11, whereby the shaft 3 and the damper 2 rise, and the discharge port 8 of the steam discharge tube 1 is opened.

The circulation of the hot air further raises the room temperature of the high-temperature generation chamber 7 from 57 ° C.
(Up to 100 ° C.) (60 minutes after the start of operation), the heat source 23 is turned ON / OFF by a thermostat. At this time, the fan 22 keeps rotating.

The inside of the high-temperature generating chamber 7 is set at a room set value (80 ° C. to 1
(00 ° C.), the stored tableware 21 does not initially warm to the same set value, but the indoor set value (80 ° C.-100
° C) continues (by 90 minutes after the start of operation) and gradually rises to the temperature of the room set value.

In this way, as the temperature of the tableware 21 rises, water drops on the tableware 21 are vaporized. At this time, the tableware 21 is heat-disinfected by the hot air that has been vaporized, and the hot air that has been vaporized is discharged from the open outlet 8, and the hot air that has been reduced in humidity circulates in the high-temperature generating chamber 7. The tableware 21 is dried. 90 minutes after the start of operation, the circulation of hot air is automatically stopped.

Thereafter, since the inside of the high-temperature generating chamber 7 has residual heat and the damper 2 is open, the steam remaining in the room is discharged from the open outlet 8. When the temperature in the room falls to the set temperature of the shape memory alloy spring 5 (57 ° C.), the damper 2 closes and the room is closed in a dry state.

In the above-described embodiment, the set temperature of the shape memory alloy spring 5 is set at 57 ° C., however, the generation of dew can be prevented so that the temperature conforms to various conditions such as the volume of the high-temperature generating chamber 7. The temperature may be changed to an appropriate temperature. ◎ shape
The temperature at which the shape change of gold occurs is not limited to 57 ° C.
In this case, the temperature is changed at a temperature around 57 ° C. this is,
The temperature inside the disinfection storage 6 has been high and humid since the temperature exceeded 57 ° C.
The water drops attached to the tableware 1 are evaporated and dried.
Not only consumes much energy but also consumes
Poisoning and drying time are long and inefficient. Accordingly
Therefore, the shape change of the shape memory alloy spring changes around 57 ° C.
Do.

The bias spring 16 according to the configuration of the embodiment
Is removed, or a shape memory alloy spring that contracts at a set temperature is used, and the winding positions of the shape memory alloy spring and the bias spring in the above-described embodiment are reversed, or the configuration is reversed. In some cases, the bias spring may be omitted.

In the above-described embodiment, the independent steam discharge tube 1 separate from the main body is mounted on the ceiling of the generation chamber 7, but the main body itself is integrally provided with the steam discharge tube. You can also.

Further, the above-mentioned damper unit can be mounted on kitchen equipment other than the disinfecting storage machine 6 which requires steam discharge, for example, a shark cooler (rice cooker).

[0030]

As described above, in the steam discharge device of the present invention, the hot air can be circulated and communicate with the high temperature generating chamber in which the set value of the high temperature can be maintained inside and outside the high temperature generating chamber. A steam discharge pipe provided, a damper provided outside the discharge port to normally close the discharge port of the steam discharge pipe, and a projection that projects inside the damper and is inserted into the steam discharge pipe. A shaft provided, a frame mounted in the steam discharge tube for slidably supporting the shaft, and a shaft mounted in the frame before reaching a set value of a high temperature generated in the high temperature generation chamber. Since the damper unit made of a shape memory alloy provided so as to operate to slide the shaft is assembled, the structure of the steam discharge device is simplified, the cause of failure is reduced, and maintenance is facilitated. , Without dropping the dew housing of warm generating chamber, drying automatically performed. ◎ Further, in the process of drying, the vaporized water drops adhering to the dishes, and the disinfected in its vapor, sequentially discharge the steam used for sterilization. ◎ Sara
The shaft slides axially along the frame,
By supporting the center part of the damper,
To open and block by moving downward.
It can be performed reliably and extremely few parts
It has the advantages of a simple structure and reduced manufacturing costs.
I do.

[Brief description of the drawings]

FIG. 1 is a partially broken longitudinal sectional view of a main part of a steam discharge device of the present invention in a normal state.

FIG. 2 is a partially broken vertical sectional view of a main part when the steam discharge device is in operation.

FIG. 3 is a partially cutaway perspective view of the disinfecting storage device including the steam discharging device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Steam discharge cylinder 2 Damper 3 Shaft 4 Frame 5 Shape memory alloy spring 6 Disinfection storage machine 7 High temperature generation chamber 8 Discharge port 9 Upper half of shaft 10 Lower half of shaft 11 Shaft joint 12 Nut 13 Rivets 14 Shaft 15 Frame ceiling wall 16 Bias spring 17 Frame floor wall 18 Heating room

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A61L 2/06 A47L 15/00-15/50 A47J 27/00-27/64 F16K 31/70

Claims (1)

(57) [Scope of request for utility model registration] 1. A steam discharge cylinder provided in a high-temperature generating chamber in which hot air can circulate and a set value of a high temperature can be held, so as to communicate with the inside and outside of the high-temperature generating chamber; A damper provided outside the outlet to normally close the outlet, a shaft protruding inside the damper and provided to be inserted into the steam discharge tube, and slidably supporting the shaft. And a frame mounted in the steam discharge cylinder for operating to slide the shaft before reaching a set value of a high temperature generated in the high temperature generating chamber mounted in the frame. Made of shape memory alloy
Tableware etc. equipped with a damper unit consisting of a spring
A steam discharge device in a poison storage device, wherein the dampa
Knit is provided so that the upper part of the high-temperature generation chamber communicates with the inside and outside.
Steam exhaust cylinder, and projecting across the axis of the steam exhaust cylinder.
A frame-shaped frame attached to its inner wall so that
Vertically penetrates the central part of the steam discharge cylinder of the frame, and
Slidably provided so as to be substantially aligned with the axis of the steam discharge tube.
And a steam exhaust provided at an upper end of the shaft.
A dam fixed so that the upper end discharge port of the outlet cylinder is normally closed
And the shaft to be located within the frame.
The provided shaft joint and the shaft join
The upper half of the shaft between the frame and the ceiling wall of the frame
The wound bias spring and the shaft joint
Wound around the lower half of the shaft between the floor walls of the frame
If it is made of a shape memory alloy that can be extended and deformed at a set temperature
A steam discharge device characterized by comprising a neck.