CN216112277U - Valve body structure for improving virtual position and gas stove - Google Patents

Abstract

The utility model discloses a valve body structure for improving virtual position and a gas cooker, comprising: a valve stem and a valve body cooperating therewith; the valve main body comprises a valve body, a valve core rotatably arranged in the valve body and a valve body upper cover, wherein a limiting sheet and a return spring are arranged in the valve body upper cover; the valve rod penetrates through the upper cover of the valve body and then is matched with the valve core, the limiting sheet is fixed with the valve rod, and the reset spring is connected between the valve body and the limiting sheet and provides a reset force for the valve rod; the valve is characterized in that an avoiding hole for allowing the valve rod to enter is formed in the top of the valve core, and an open slot is formed in the wall of the avoiding hole; the valve rod is provided with a kidney-shaped hole, a positioning pin in sliding fit with the kidney-shaped hole is arranged in the kidney-shaped hole in a penetrating mode, the shape of the cross section of the middle of the positioning pin is consistent with that of the end portion of the kidney-shaped hole, two end portions of the positioning pin are matched with the open grooves, and the maximum size of the two end portions of the positioning pin is larger than that of the corresponding open groove.

Description

Valve body structure for improving virtual position and gas stove

Technical Field

The utility model relates to the technical field of gas cookers, in particular to a valve body structure for improving a virtual position and a gas cooker.

Background

The plug valve is a valve body commonly used in a gas cooker, and the plug valve drives a valve core to rotate through a valve rod during operation, so that the opening degree of the valve body is controlled; simultaneously, in order to improve the security that the cooking utensils used, still can set up child's lock structure on the valve body, avoid the cooking utensils to produce the gas leakage risk in the use. In the existing plug valve structure, the valve rod is connected with the electromagnetic valve through a transmission piece besides driving the valve core to rotate, so that the electromagnetic valve is opened by pressing the valve rod downwards, and the valve body can normally work.

For example, a chinese utility model patent with publication number CN212338233U discloses a plug valve, which includes: a valve body provided with a first cavity; a valve upper cover connected to the valve main body; the valve core is rotatably connected in the first cavity; the valve rod comprises a pressing part and a rotation stopping part from top to bottom, the pressing part is provided with an arc side surface and a clearance side surface, the rotation stopping part is in rotation stopping fit with the valve core and is in up-down movable fit with the valve core, and a reset mechanism is arranged between the rotation stopping part and the valve core; the child lock structure comprises a right-handed limiting block, a left-handed limiting block and a terminal limiting block, wherein the limiting depth of the left-handed limiting block is not more than the pressing stroke of the valve rod; and the micro switch is arranged on the valve upper cover, and the rotating movement path of the arc side surface is intersected with the micro switch.

However, in the conventional plug valve structure, the fit clearance between the valve rod rotation stopping part and the valve core is generally large, so that the valve rod can be prevented from being pressed down. The result of this is: a virtual position exists between the rotation stopping part and the valve core, so that the rotation of the valve rod cannot be synchronous with the valve core. In addition, the setting of child's lock structure has also brought the virtual position, constitutes the cooperation through crescent structure between the spacing piece of child's lock structure and the valve rod, and this kind of cooperation structure is in the middle of the valve rod rotates, and the clearance that shows is very obvious. Meanwhile, the upper cover of the valve body of the other component of the child lock structure is formed by the limiting piece, and the upper cover is a casting part and is positioned on a surface difficult to machine, so that a fit clearance between the upper cover and the limiting piece is large. In conclusion, the existing valve body has larger virtual position, gives people a feeling of looseness in the use process, and brings bad user experience.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model aims to provide a valve body structure which can improve the use experience of users, eliminate the inherent clearance between a valve rod and a valve core and improve the virtual position.

The utility model also aims to provide a gas cooker with the valve body structure.

In order to achieve the purpose, the utility model adopts the following technical scheme.

A valve body structure for improving a dummy position, comprising: a valve stem and a valve body cooperating therewith; the valve main body comprises a valve body, a valve core rotatably arranged in the valve body and a valve body upper cover, wherein a limiting sheet and a return spring are arranged in the valve body upper cover; the valve rod penetrates through the upper cover of the valve body and then is matched with the valve core, the limiting sheet is fixed with the valve rod, and the reset spring is connected between the valve body and the limiting sheet and provides a reset force for the valve rod; the valve is characterized in that an avoiding hole for allowing the valve rod to enter is formed in the top of the valve core, and an open slot is formed in the wall of the avoiding hole; the valve rod is provided with a kidney-shaped hole, a positioning pin in sliding fit with the kidney-shaped hole is arranged in the kidney-shaped hole in a penetrating mode, the shape of the cross section of the middle of the positioning pin is consistent with that of the end portion of the kidney-shaped hole, two end portions of the positioning pin are matched with the open grooves, and the maximum size of the two end portions of the positioning pin is larger than the corresponding opening size of the open grooves.

More preferably, the positioning pin is covered and pressed on the valve core through a mounting plate, so that two end parts of the positioning pin are tightly attached to the inner wall of the open slot.

More preferably, the mounting plate is an annular mounting plate, and a through hole for allowing the valve rod to pass through is formed in the mounting plate.

More preferably, both end portions of the positioning pin are protrusions protruding toward the same side, and the protrusions have a semi-cylindrical shape, a semi-elliptical cylindrical shape, or a triangular cylindrical shape.

More preferably, the maximum linear diameter of the middle section of the positioning pin is smaller than the diameter of the kidney-shaped hole, and the positioning pin and the kidney-shaped hole are in positive deviation fit.

More preferably, a child lock limiting sheet fixed with the valve body upper cover is arranged in the valve body upper cover, and the child lock limiting sheet is positioned between the top of the valve body upper cover and the limiting sheet; the child lock limiting sheet and the limiting sheet are provided with a positioning notch and a positioning convex which are matched with each other.

More preferably, the child lock limiting piece and the limiting piece are both annular pieces, and corresponding through holes for the valve rod to pass through are formed in the child lock limiting piece and the limiting piece.

More preferably, the child lock limiting sheet and the valve body upper cover are fixedly connected through a screw, and the limiting sheet and the valve rod are fixedly connected through a clamp spring.

The gas cooker comprises a plug valve and is characterized in that the plug valve is in a valve body structure for improving the virtual position.

The utility model has the beneficial effects.

Firstly, the inherent clearance between a valve rod and a valve core in the existing valve body can be eliminated through a specific matching structure of the valve core, a positioning pin and the valve rod; simultaneously, under the normal reset state of valve rod, the interlude of locating pin just in time cooperates with the tip in waist type hole, has both solved the virtual position problem that this one section of valve rod and case brought like this, ensures pushing down, rising that the valve rod can be smooth again, has improved the user experience of valve body.

Secondly, the child lock structure is designed into a sheet metal part matching mode, so that the difficulty of production and processing is reduced, the processing accuracy is improved, the matching accuracy is improved, and the virtual position of the valve body caused by the child lock structure is reduced; and the child lock structure is arranged in the upper cover of the valve body and is not in direct contact with the outside, so that the reliability of the child lock structure can be improved.

Drawings

Fig. 1 is a cross-sectional view of a valve body structure for improving a virtual position according to the present invention.

Fig. 2 is an exploded view of the valve body structure for improving the virtual position according to the present invention.

Fig. 3 is a partial cutaway view of the upper cover of the valve body structure for improving the virtual position according to the present invention.

Fig. 4 is a schematic view of a child lock structure of a valve body structure for improving a virtual position according to the present invention.

Fig. 5 is a partial structure diagram of the valve stem and the valve core of the valve body structure for improving the virtual position provided by the utility model.

Fig. 6 is a structural diagram of a positioning pin of the valve body structure for improving the virtual position according to the present invention.

Fig. 7 is a valve stem structure diagram of a valve body structure for improving a virtual position according to the present invention.

Reference numerals indicate the same.

1: valve stem, 2: valve body upper cover, 3: a valve core, 4: child lock spacing piece, 5: spacing piece, 6: positioning pin, 7: return spring, 8: and (7) mounting the plate.

Detailed Description

In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated without limiting the specific scope of protection of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the feature, and in the description of the utility model, "at least" means one or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

In the present application, unless otherwise specified or limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.

The following describes the embodiments of the present invention with reference to the drawings of the specification, so that the technical solutions and the advantages thereof are more clear and clear. The embodiments described below are exemplary and are intended to be illustrative of the utility model, but are not to be construed as limiting the utility model.

The first embodiment.

As shown in fig. 1 to 7, a valve body structure for improving a virtual position includes: a valve rod 1 and a valve main body matched with the valve rod; the valve main body comprises a valve body, a valve core 3 rotatably arranged in the valve body and a valve body upper cover 2, and a limiting sheet 5 and a return spring 7 are arranged in the valve body upper cover 2; the valve rod 1 penetrates through the valve body upper cover 2 and then is matched with the valve core 3, the limiting sheet 5 is fixed with the valve rod 1, and the reset spring 7 is connected between the valve body 1 and the limiting sheet 5 and provides a reset force for the valve rod 1; the valve is characterized in that an avoiding hole for allowing the valve rod 1 to enter is formed in the top of the valve core 3, and an open slot is formed in the wall of the avoiding hole; the valve rod 1 is provided with a kidney-shaped hole, a positioning pin 6 in sliding fit with the kidney-shaped hole is arranged in the kidney-shaped hole in a penetrating mode, the shape of the cross section of the middle of the positioning pin 6 is consistent with that of the end of the kidney-shaped hole, two ends of the positioning pin 6 are matched with the open slots, and the maximum sizes of the two ends of the positioning pin 6 are larger than the corresponding opening sizes of the open slots. When the valve rod 1 is released, the valve rod 1 is reset under the action of the reset spring 7; the positioning pin and the valve core are always kept relatively static in the processes of pressing down the valve rod and resetting the valve rod.

In this embodiment, the positioning pin 6 is covered and pressed on the valve core 3 through the mounting plate 8, so that the two end portions of the positioning pin 6 are tightly attached to the inner wall of the opening groove.

In this way, the positioning pin and the valve core are kept in a static state under the action of the mounting plate and the open slot, and the positioning pin 6 is mounted in the kidney-shaped hole, so that the positioning pin 6 can move in a range limited by the kidney-shaped hole along the axial direction of the valve rod 1, and the downward acting force cannot be generated on the valve core by the axial movement of the positioning pin along the kidney-shaped hole in the process of pressing down the valve rod. The inherent clearance of the valve rod and the valve core in the existing valve body is eliminated, the problem of virtual positions caused by the inherent clearance between the valve rod and the valve core is solved, and the user experience of the valve body is improved.

Further, the mounting plate 8 is an annular mounting plate, and a through hole for allowing the valve rod 1 to pass through is formed in the mounting plate 8. The annular mounting plate with the valve body is fixed, reset spring 7's both ends respectively with the annular mounting plate with spacing piece 5 is connected. Obviously, according to different actual needs, those skilled in the art may also adopt mounting plates with other shapes, such as a sheet shape, instead of the annular plate, as long as the mounting plates can play a role of pressing the positioning pin 6 on the opening groove, and the present invention is not limited to this embodiment.

It should be noted that a child lock limiting piece 4 fixed with the valve body upper cover 2 is arranged in the valve body upper cover 2, and the child lock limiting piece 4 is positioned between the top of the valve body upper cover 2 and the limiting piece 5; the child lock limiting sheet 4 and the limiting sheet 5 are provided with a positioning notch and a positioning convex type which are matched with each other. Therefore, when the valve is actually used, the child lock limiting piece and the limiting piece form a child lock structure to limit the rotation of the valve rod, and the valve rod is pressed downwards to enable the limiting piece to be away from the child lock limiting piece to unlock the child lock structure, so that the valve rod can drive the valve core to rotate. The child lock structure is designed into a sheet metal part matched form, matching precision is improved, virtual positions of the valve body caused by the child lock structure are reduced, and the child lock structure is arranged in the upper cover of the valve body and is not in direct contact with the outside, so that reliability of the child lock structure can be improved.

It should be noted that both end portions of the positioning pin 6 are convex portions protruding toward the same side, and the convex portions are semi-cylindrical. When the valve rod 1 is rotated, because the maximum line diameter of the positioning pin 6 is larger than the distance between the open grooves of the valve core 3, the positioning pin 6, the valve rod 1 and the valve core 3 can be regarded as a whole, relative movement among the positioning pin 6, the valve rod 1 and the valve core 3 can be avoided, and a virtual position can not be generated. In this embodiment, the cross section of the positioning pin is semicircular, and the diameter of the semicircular shape is larger than the width of the open slot. Obviously, according to different actual needs, the shape of the convex part can be set to be a positioning pin of a semi-elliptic cylinder shape, a triangular prism shape or other arc shapes, and is not limited to the embodiment.

In this embodiment, the positioning pin 6 adopts a structure with large diameters at two ends and small diameter at the middle, and the positioning pin brings the following advantages: the positioning pin can be prevented from falling out of the kidney-shaped hole, and the positioning pin 6 and the kidney-shaped hole can be assembled conveniently. Preferably, the maximum linear diameter of the middle section of the positioning pin is smaller than the diameter of the kidney-shaped hole, and the maximum linear diameter of the middle section of the positioning pin is in positive deviation fit with the diameter of the kidney-shaped hole, so that the pressing of the valve rod cannot be influenced.

Further, the child lock limiting piece 4 and the limiting piece 5 are both of annular piece structures. The child lock limiting piece 4 is fixedly arranged on the valve body upper cover 2 through a first screw, and a through hole for the valve rod 1 to penetrate through is formed in the child lock limiting piece 4. The child lock limiting piece 4 can freely move relative to the circumferential direction and the axial direction of the valve rod 1.

The limiting piece 5 and the valve rod 1 are fixedly connected through a clamp spring. In this embodiment, be equipped with on the spacing piece 5 with valve rod 1 complex semicircular hole be equipped with on the valve rod 1 and be used for the spacing piece is followed the spacing ring of valve rod axial upward movement. Spacing piece 5 through the semicircular hole with the valve rod is connected and is made spacing piece 5 relative fixed with 1 circumference of valve rod, can along the axial motion of valve rod, the axial motion scope of the spacing piece of spacing ring drives thereby the spacing piece of spacing piece downwards leaving the child lock spacing piece unties child lock structure when pressing the valve rod down to make the valve rod can rotate, thereby reset spring's effect resumes elastic deformation after the effect disappears and drives the valve rod upward movement at the effect of pushing down of valve rod. Preferably, a through groove for allowing the limiting ring to enter is formed in the child lock limiting sheet; in this embodiment, when the limiting piece is close to the child lock limiting piece, the limiting ring enters the through hole of the child lock limiting piece. The positioning notch is arranged on one of the child lock limiting sheet and the limiting sheet, and the positioning convex is arranged on the other of the child lock limiting sheet and the limiting sheet. For the specific installation positions and the specific structures of the positioning convex and the positioning notch, a person skilled in the art can adjust the positioning convex and the positioning notch according to actual needs, as long as the positioning convex and the positioning notch have the same limiting function, and the utility model is not limited.

Further, the mounting plate and the valve body are detachably connected through a second screw. And the valve body upper cover is arranged on the mounting plate through a third screw.

Example two.

A gas cooker comprises a plug valve, and is characterized in that the plug valve is of a valve body structure with an improved virtual position as in the first embodiment.

The gas cooker provided by the embodiment has all the beneficial effects of implementing one, and the description is omitted here. As for the specific structure of the gas cooker, an existing or future structure may be adopted, and will not be described in detail herein.

It will be appreciated by those skilled in the art from the foregoing description of construction and principles that the utility model is not limited to the specific embodiments described above, and that modifications and substitutions based on the teachings of the art may be made without departing from the scope of the utility model as defined by the appended claims and their equivalents. The details not described in the detailed description are prior art or common general knowledge.

Claims (10)

1. A valve body structure for improving a dummy position, comprising: a valve stem and a valve body cooperating therewith; the valve main body comprises a valve body, a valve core rotatably arranged in the valve body and a valve body upper cover, wherein a limiting sheet and a return spring are arranged in the valve body upper cover; the valve rod penetrates through the upper cover of the valve body and then is matched with the valve core, the limiting sheet is fixed with the valve rod, and the reset spring is connected between the valve body and the limiting sheet and provides a reset force for the valve rod; the valve is characterized in that an avoiding hole for allowing the valve rod to enter is formed in the top of the valve core, and an open slot is formed in the wall of the avoiding hole; the valve rod is provided with a kidney-shaped hole, a positioning pin in sliding fit with the kidney-shaped hole is arranged in the kidney-shaped hole in a penetrating mode, the shape of the cross section of the middle of the positioning pin is consistent with that of the end portion of the kidney-shaped hole, two end portions of the positioning pin are matched with the open grooves, and the maximum size of the two end portions of the positioning pin is larger than the corresponding opening size of the open grooves.

2. The valve body structure for improving the false position of claim 1, wherein the positioning pin is covered and pressed on the valve core through a mounting plate, so that two end parts of the positioning pin are tightly attached to the inner wall of the opening groove.

3. A valve body structure for improving a virtual position according to claim 2, wherein the mounting plate is an annular mounting plate, and a through hole for passing the valve rod is formed in the mounting plate.

4. A valve body structure for improving a virtual position as claimed in claim 3, wherein the annular mounting plate is fixed to the valve body, and two ends of the return spring are respectively connected to the annular mounting plate and the limiting plate.

5. A valve body structure for improving a virtual position according to claim 1, wherein both end portions of the positioning pin are protrusions protruding to the same side, and the protrusions are in a semi-cylindrical shape, a semi-elliptical cylindrical shape, or a triangular cylindrical shape.

6. A valve body structure for improving dummy position as claimed in claim 1, wherein the maximum diameter of the middle section of the positioning pin is smaller than the diameter of the kidney-shaped hole, and the two are positively biased.

7. The valve body structure for improving the virtual position as claimed in claim 1, wherein a child lock limiting piece is fixed in the valve body upper cover, and the child lock limiting piece is located between the top of the valve body upper cover and the limiting piece; the child lock limiting sheet and the limiting sheet are provided with a positioning notch and a positioning convex which are matched with each other.

8. The valve body structure for improving a virtual position as claimed in claim 7, wherein the child lock limiting plate and the limiting plate are both annular plates, and corresponding through holes for the valve rod to pass through are formed in the child lock limiting plate and the limiting plate.

9. The valve body structure for improving the virtual position as claimed in claim 7, wherein the child lock limiting plate is fixed to the upper cover of the valve body by a screw, and the limiting plate is fixed to the valve rod by a snap spring.

10. A gas stove comprises a plug valve, and is characterized in that the plug valve is a valve body structure for improving a virtual position according to any one of claims 1 to 9.

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