CN210531657U

CN210531657U - Corner limit structure of temperature control valve

Info

Publication number: CN210531657U
Application number: CN201921048614.1U
Authority: CN
Inventors: 李雪波
Original assignee: Ningbo Laite Gas Stoves Co ltd
Current assignee: Ningbo Laite Gas Stoves Co ltd
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2020-05-15
Anticipated expiration: 2029-07-05

Abstract

A corner limit structure of a temperature control valve comprises a valve body, wherein a rotatable valve core is arranged in the valve body, a knob rod for driving the valve core to rotate penetrates through the valve body, and the knob rod keeps the upward moving trend under the action of a spring; the method is characterized in that: the valve body comprises a valve seat and a valve cover fixed on the valve seat, the inner top surface of the valve cover is provided with a limiting groove, the inner hole top surface of the valve seat is provided with an ignition groove, and a side-convex limiting block with a side convex is fixed on the knob rod; when the knob rod is in an original state, the limiting block keeps the trend of being clamped into the limiting groove; after the knob rod is pressed down at the original position, the limiting block is separated from the limiting groove; when the knob rod rotates anticlockwise to a first angle position from an original state, the limiting block is aligned with the ignition groove, so that the knob rod can be further moved downwards in the position state to finish ignition. Due to the arrangement of the ignition groove, the knob rod has downward pressure when rotating and rotates to the position of the ignition groove, so that the valve rod can further move downwards to trigger the ignition switch.

Description

Corner limit structure of temperature control valve

Technical Field

The utility model relates to a gas temperature-sensing valve especially relates to a corner limit structure of temperature-sensing valve.

Background

Some gas oven inside have two baking chamber that the interval set up from top to bottom, are equipped with a fire row in every baking chamber respectively, and the lower fire row that is located lower part baking chamber generally has the fire control possibility, and the fire row fire intensity of the last fire that is located upper portion baking chamber is certain, generally for big fire. Because of the fire row is sheltered from completely by the box of oven down, it is then visible to go up the fire row, consequently when setting a fire for down row ignition, can't observe with eyes whether to ignite successfully, if it is unsuccessful to ignite many times, because of there is the gas release in the ignition process, when the ignition is successful next time, can be because the gas content of fire row surrounding air is great down, can have the plosives of "popping at first" when igniting, there is certain potential safety hazard, some countries are out of the throne national standard, can not have the aforesaid condition to take place. The ignition row can directly observe whether the ignition is successful, so that the condition does not exist. Such a gas oven is disclosed in the chinese utility model patent No. ZL201220709936.8 (publication No. CN203059420U), a dual chamber gas oven consisting of flow deflectors.

How to design a gas valve which ensures the efficiency of fire grate ignition is a technical problem which needs to be solved urgently by the technical personnel in the field. The security and the rationality of present country to the temperature-sensing valve product require more and more high, and current temperature-sensing valve all pushes down and triggers ignition switch rotating to arbitrary angular position, and this probably leads to when main gas outlet channel ventilates, just is igniteed, and the surrounding air of fire row has higher gas content, still has the plosives of "popping at first" during the ignition. For this reason, the supplier is required to design a knob lever in which the ignition switch is not activated when the knob lever is initially pressed down, but only after a certain angle of rotation (ensuring that the open flame path is vented in this angular position).

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that provide one kind for making the knob pole only rotate certain angle after (ensure that this angular position ever open flame passageway ventilates) ignition switch just triggered the corner limit structure that becomes possible temperature-sensing valve to above-mentioned prior art current situation.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a corner limit structure of a temperature control valve comprises a valve body, wherein a rotatable valve core is arranged in the valve body, a knob rod for driving the valve core to rotate penetrates through the valve body, and the knob rod keeps the upward moving trend under the action of a spring; the method is characterized in that: the valve body comprises a valve seat and a valve cover fixed on the valve seat, the inner top surface of the valve cover is provided with a limiting groove, the inner hole top surface of the valve seat is provided with an ignition groove, and a side-convex limiting block with a side convex is fixed on the knob rod; when the knob rod is in an original state, the limiting block keeps the trend of being clamped into the limiting groove; after the knob rod is pressed down at the original position, the limiting block is separated from the limiting groove; when the knob rod rotates anticlockwise to a first angle position from an original state, the limiting block is aligned with the ignition groove, so that the knob rod can be further moved downwards in the position state to finish ignition.

The inner top surface of the valve cover is further improved to be provided with an upper limiting boss, the inner hole top surface of the valve seat is also provided with a first lower limiting boss, and after the knob rod is pressed down at the original position, the first lower limiting boss shifts the limiting block to prevent the knob rod from rotating clockwise; and the limiting block and the upper limiting boss are in a gear state, so that the knob rod is blocked from further anticlockwise rotating. This structure enables the knob stem to rotate counterclockwise only from the initial state.

In a further improvement, the top surface of the inner hole of the valve seat is also provided with a second lower limiting boss which is arranged adjacent to the ignition groove; from initial state towards anticlockwise rotation to first angular position at the knob pole, the spacing boss is right under the second the stopping of stopper guarantees that the knob pole can not further anticlockwise rotation at first angular position, and the knob pole moves up under reset spring effect, and the spacing boss misplaces from top to bottom under stopper and the second, can further anticlockwise rotation, carries out the intensity of a fire and adjusts. The setting of spacing boss is down ensured to the second knob pole and is stopped in first angular position department, and the location of ignition position is accurate, and after the completion of igniteing, the knob pole moved up under the spring action, and spacing boss misplaces from top to bottom under stopper and the second, can further anticlockwise rotation, carries out the intensity of a fire and adjusts.

The top surface of the first lower limiting table is higher than that of the second lower limiting table.

In order to facilitate the assembly, a rotary limiting disc is fixed on the knob rod, and the limiting block is arranged on the rotary limiting disc.

Compared with the prior art, the utility model has the advantages of: the valve core rotates to a first angle position from an original state, the downward movement amplitude of the valve rod cannot trigger the ignition switch, when the valve core reaches the first angle position, it is required to ensure that only the long open fire air outlet channel gives out air, due to the arrangement of the ignition groove, the knob rod has downward pressure when rotating, and rotates to the ignition groove position, so that the valve rod can further move downwards, the ignition switch is triggered, the long open fire is ignited, after the ignition is successful, the knob rod moves upwards under the action of the reset spring, the knob rod can further rotate anticlockwise, the main fire is ignited, and the fire can be adjusted.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

fig. 2 is a cross-sectional view of an embodiment of the present invention;

FIG. 3 is a diagram showing the relative position between the knob stem and the valve cover in the initial state according to the embodiment of the present invention;

FIG. 4 is a diagram illustrating a relative position between the push button lever and the valve seat in an initial state according to an embodiment of the present invention;

FIG. 5 is a diagram illustrating a relative position between the knob rod and the valve seat when the embodiment of the present invention is rotated to the first angular position;

FIG. 6 is a diagram showing the relative position between the knob stem and the valve seat when the knob stem is further pressed down after being rotated to the first angular position according to the embodiment of the present invention;

FIG. 7 is a diagram illustrating the relative position between the knob stem and the valve seat when the knob stem is rotated to a first angular position and released;

FIG. 8 is a diagram showing the relative position between the knob stem and the valve cover when the knob stem is rotated counterclockwise to the maximum angular position according to the embodiment of the present invention;

fig. 9 is a schematic perspective view of a valve seat in a valve according to an embodiment of the present invention;

fig. 10 is a schematic perspective view of a valve cover in a valve according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 10, it is a preferred embodiment of the present invention.

The utility model provides a corner limit structure of temperature-sensing valve, includes valve body 1, is equipped with rotatable case 2 in the valve body 1, wears to be equipped with on the valve body 1 to be used for driving the rotatory knob pole 3 of case 2, knob pole 3 is kept moving up the trend by the effect of spring 4.

The valve body 1 comprises a valve seat 11 and a valve cover 12 fixed on the valve seat 11, and the knob rod 3 penetrates through the valve cover 12 and extends into the valve seat 11. The inner top surface of the valve cover 12 is provided with a limiting groove 121 and an upper limiting boss 122, the top surface of the inner hole of the valve seat 11 is provided with an ignition groove 111, a first lower limiting boss 112 and a second lower limiting boss 113, the second limiting boss 113 is arranged adjacent to the ignition groove 111, and the top surface of the first lower limiting table 112 is higher than the top surface of the second lower limiting table 113.

A side convex limiting block 51 is fixed on the knob rod 3. A rotary limiting disc 5 is fixed on the knob rod 3, and the limiting block 51 is arranged on the rotary limiting disc 5.

As shown in fig. 3, when the knob lever 3 is in the original state, the stopper 51 keeps the tendency of being caught in the stopper groove 121;

as shown in fig. 4, after the knob rod 3 is pressed down at the original position, the first lower limit boss 112 shifts the limit block 51 to prevent the knob rod 3 from rotating clockwise;

as shown in fig. 5 and 6, when the knob lever 3 is rotated counterclockwise from the original state to the first angle α 1 position, the stopper 51 is aligned with the ignition recess 111, and the second lower stopper boss 113 blocks the stopper 51, so that the knob lever 3 cannot be further rotated counterclockwise at the first angle α 1 position, and the knob lever 3 can be further moved downward at this position to complete the ignition;

as shown in FIG. 7, the knob rod 3 moves upwards under the action of the spring 4, and the stopper 51 and the second lower limit boss 113 are displaced up and down, so that the knob rod can further rotate counterclockwise to adjust the fire.

As shown in fig. 8, when the stopper 51 and the upper stopper boss 122 are in the shift state, the knob lever 3 is blocked from further counterclockwise rotation.

It should be noted that in the description of the present embodiment, the terms "front, back", "left, right", "upper, lower", "clockwise, counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description of the present invention and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Claims

1. A rotation angle limiting structure of a temperature control valve comprises a valve body (1), wherein a rotatable valve core (2) is arranged in the valve body (1), a knob rod (3) used for driving the valve core (2) to rotate penetrates through the valve body (1), the knob rod (3) keeps the upward movement trend under the action of a spring (4), the rotation angle limiting structure is characterized in that the valve body (1) comprises a valve seat (11) and a valve cover (12) fixed on the valve seat (11), a limiting groove (121) is formed in the inner top surface of the valve cover (12), an ignition groove (111) is formed in the inner hole top surface of the valve seat (11), a laterally convex limiting block (51) is fixed on the knob rod (3), the limiting block (51) keeps the trend of being clamped into the limiting groove (121) when the knob rod (3) is in an original state, the limiting block (51) is separated from the limiting groove (121) after the knob rod (3) is pressed down at the original position, and the knob rod (3) rotates anticlockwise to a first angle (α 1) from the original state, and the limiting block (51) is aligned with the ignition groove (111) so that the knob rod can be further moved down at the ignition position.

2. The rotation angle restricting structure of a thermo-valve according to claim 1, characterized in that: the inner top surface of the valve cover (12) is also provided with an upper limiting boss (122), the inner hole top surface of the valve seat (11) is also provided with a first lower limiting boss (112), and after the knob rod (3) is pressed down at the original position, the first lower limiting boss (112) shifts the limiting block (51) to prevent the knob rod (3) from rotating clockwise; the stop block (51) and the upper limit boss (122) are in a gear state, and the knob rod (3) is blocked from further rotating anticlockwise.

3. The rotation angle limiting structure of a temperature controlled valve according to claim 2 is characterized in that the top surface of the inner hole of the valve seat (11) is further provided with a second lower limiting boss (113), the second lower limiting boss (113) is arranged adjacent to the ignition groove (111), when the knob rod (3) rotates anticlockwise from the original state to the first angle (α 1), the second lower limiting boss (113) blocks the limiting block (51) to ensure that the knob rod (3) can not rotate anticlockwise further at the first angle (α 1) position, the knob rod (3) moves upwards under the action of the spring (4), and the limiting block (51) and the second lower limiting boss (113) are vertically staggered to further rotate anticlockwise for fire adjustment.

4. The rotation angle restricting structure of a thermo-valve according to claim 3, characterized in that: the top surface of the first lower limit boss (112) is higher than the top surface of the second lower limit boss (113).

5. The rotation angle restricting structure of a thermo-valve according to claim 1, characterized in that: a rotary limiting disc (5) is fixed on the knob rod (3), and the limiting block (51) is arranged on the rotary limiting disc (5).