JPS60813Y2 - Boiler lid knob - Google Patents

Description

[Detailed Description of the Invention] Technical Field of the Invention The present invention relates to a knob for a boiler lid, and more particularly, to a steam venting structure for a lid for a pot, kettle, etc.

Technical Background of the Invention and Its Problems Conventional lids for pots, kettles, etc. have separate mounting holes for attaching knobs and steam vents, so if the steam vent holes are left open, dust, etc. can get in. There is a risk.

Further, when a single valve is attached to adjust the opening degree of the steam vent hole, there are disadvantages in that the valve device in addition to the knob protrudes from the lid, complicating the structure of the lid and spoiling its appearance.

Furthermore, in the case of a glass lid, forming a steam vent hole outside the mounting hole will reduce the strength of the lid.
If you remove the glass lid from the pot or kettle to release steam without opening the steam vent hole, the glass may be locally overheated and damaged by the gas flame.

Purpose of the invention In view of the above-mentioned problems, the present invention has a mounting screw protruding from a mounting hole opened in the lid body, and an axial ventilation passage □ whose upper end is closed and whose lower end is open, which is connected to the upper peripheral wall. A vent opening is formed in the mounting screw, and an exhaust hole that communicates with the vent hole is formed in the knob screwed to the mounting screw, and the ventilation hole and exhaust gas are connected to the mounting screw air passage without forming a separate steam vent hole. In addition to allowing steam to be vented through the hole, a sliding body whose inner periphery is narrowed downward is fitted onto the outer periphery of the knob body whose outer periphery is narrowed downward, so that the inner periphery is narrow. When the sliding body is brought into contact with the exhaust hole of the knob body, it is engaged with the knob body, and when the sliding body is grasped and the lid body is lifted, the exhaust hole is closed.

Summary of the invention In this invention, an air passageway is formed in the axial direction that protrudes upward from a mounting hole opened in the lid body, the upper end is closed, and the lower end is open, and a ventilation hole communicating with the air passageway is opened in the upper peripheral wall. a mounting screw, a knob body which is screwed onto the mounting screw and has an exhaust hole in the upper peripheral wall that communicates with the ventilation hole and whose outer peripheral surface is made smaller in diameter toward the bottom; A sliding body that is fitted and whose inner peripheral surface has a smaller diameter downward, contacts the upper part of the knob body in close contact with the outside to block the exhaust hole when it is raised, and is located below the exhaust hole of the knob body when it is lowered. Steam is vented from the ventilation path of the mounting screw through the ventilation hole and the exhaust hole of the knob body, and the exhaust hole is opened and closed by vertical movement of a sliding body fitted around the outer periphery of the knob body.

Examples of ideas Embodiments of the present invention will be described with reference to the accompanying drawings.

Reference numeral 1 denotes a lid body made of glass, and a mounting hole 2 is opened in the center.

Reference numeral 3 denotes a mounting screw made of metal or synthetic resin, through which a ventilation passage 4 is formed in the axial direction, a flange portion 5 at the lower end, a thread portion 6 on the outer periphery, and a screw thread 3 that passes through opposing positions on the upper part of the peripheral wall. The pores 7 are open.

Reference numeral 8 has a knob body with a female threaded part 9 at the center thereof which is screwed into the mounting screw 3, and an exhaust hole 10 that communicates with the ventilation hole 7 of the mounting screw 3 is formed in the upper diametrical direction, and the circumferential surface is downward. It is narrowed in a tapered shape.

Further, a cover 11 made of die-cast aluminum is fitted and fixed to the upper end to close the ventilation passage 4 of the mounting screw 3 opened at the upper end.

When the knob body 8 is screwed together until the lower end contacts the top surface of the lid body 1 with the flange portion 5 of the mounting screw 3 engaged with the back surface of the lid body 1, the ventilation hole 7 and the exhaust hole 10 of the mounting screw 3 are connected. It is designed to match.

Reference numeral 12 denotes a sliding body made of a heat insulating material, the height of which is approximately 1/2 that of the knob body 8, and a through hole 13 that tapers downward from the center and has a diameter approximately equal to the outer diameter of the upper part of the knob body 8. is formed, and the knob body 8 is fitted into this through hole 13 so that the sliding body 12 can slide up and down.

When the slider 12 slides upward, the inner circumferential surface comes into close contact with the outer circumferential surface of the knob 8 and closes the exhaust hole 10, and when the slider 12 slides downward, the upper part of the knob 8 protrudes from the slider 12. The exhaust hole 10 is opened.

Next, the operation of the above embodiment will be explained.

When installing the knob body 8, the mounting screw 3 is projected upward from the mounting hole 2 of the lid body 1, the sliding body 12 is fitted on the outer periphery, and the knob body 8 is screwed onto the mounting screw 3. When the mounting screw 3 is screwed to the lower end, the ventilation hole 7 of the mounting screw 3 and the exhaust hole 10 of the knob body 8 match.

Next, when venting steam, the sliding body 12 descends to the lower part of the knob body 8 by its own weight and opens the exhaust hole 10, so that the steam that has ascended through the ventilation passage 4 of the mounting screw 3 is passed through the ventilation hole communicating with this. 7. Exhausted to the outside through the exhaust hole 10.

Also, when gripping the sliding body 12 and lifting the lid body 1,
Since the sliding body 12 moves up the outer periphery of the knob body 8 and comes into close contact with the upper outer periphery, the exhaust hole 10 is sealed and hot steam is not blown onto the hand.

Effects of the invention According to the invention, an air passage is formed in which the lower end is opened in the axial direction of the mounting screw that protrudes from the mounting hole opened in the lid, and the air passage is connected to the upper peripheral wall of the mounting screw. The ventilation hole is opened, and an exhaust hole communicating with the ventilation hole is formed in the upper peripheral wall of the knob screwed onto the mounting screw, so that steam can be removed from the ventilation path through the ventilation hole and the exhaust hole. There is no need to form a steam vent hole in the lid body in addition to the mounting hole, reducing the manufacturing process, and if the lid body is made of glass, there is no risk of strength reduction due to opening the steam vent hole. .

Further, the outer periphery of the knob body has a smaller diameter downward, and a sliding body whose inner periphery has a smaller diameter downward is fitted into the knob body so as to be movable vertically, and when this sliding body is raised, the upper part of the knob body Since the exhaust hole is positioned below the exhaust hole when the lid is closed, the sliding body descends to open the exhaust hole and release steam, and the sliding body is closed. When you lift the lid while grasping a moving object, the sliding body rises and closes the exhaust hole at the top of the knob, so you can prevent hot steam from the exhaust hole from blowing onto your hands when you open the lid. It can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view of a knob showing an embodiment of the present invention;
FIG. 2 is a perspective view when the above sliding body is lowered, and FIG. 3 is a perspective view when the above sliding body is raised. 1... Lid body, 2... Mounting hole, 3... Mounting screw, 4
... Ventilation path, 7... Exhaust hole, 8... Knob body, 1
2...Sliding body.

Claims (1)

[Scope of utility model registration request] A mounting screw that projects upward from a mounting hole opened in the lid body, forms a ventilation passage in the axial direction with a closed upper end and an open lower end, and opens a ventilation hole communicating with the ventilation passage in the upper peripheral wall; a knob body which is screwed onto the mounting screw and has an exhaust hole in the upper circumferential wall that communicates with the ventilation hole and whose outer circumferential surface becomes smaller in diameter downward; The diameter of the knob is reduced downward, and when the knob body is raised, it comes into close contact with the upper part of the knob body to block the exhaust hole, and when it is lowered, it is intersected by a sliding body located below the exhaust hole of the knob body. A knob for the lid of a boiler.