Gear structure and plug valve with same

Abstract

The utility model provides a gear structure and a plug valve with the gear structure, and belongs to the technical field of gas stoves, the gear structure comprises a first gear disc and a second gear disc, the periphery of the first gear disc is provided with a plurality of first gear teeth, and every two adjacent first gear teeth form a gear groove; the second gear disc is connected to the bottom of the first gear disc, a plurality of second gear teeth are arranged on the periphery of the second gear disc, and the outer diameter of the first gear disc is larger than that of the second gear disc. According to the utility model, the friction area between the periphery of the gear device and the gear bead can be reduced, the rotating torsion of the valve core is reduced, the gear switching is smoother, and the use experience of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas stove technical field especially a gear structure and the plug valve with it. BACKGROUND

[0002] The gas plug valve is one of the most important components in the gas appliance, and can be divided into inner and outer ring small fire, inner and outer ring large fire and medium fire according to the firepower. Since the valve rod in the prior art is stepless rotation, the accurate firepower segment of the valve body output gas volume cannot be determined when using, and the use convenience is poor. Some products increase the gear structure in the valve body to realize gear switching prompting and accurate control, but the existing gear structure has large friction during rotation with the valve core, and the use experience is poor. SUMMARY

[0003] The first technical problem to be solved by the utility model is to provide a gear structure which can reduce the friction area between the gear ware outer periphery and the gear ball, reduce the rotating torque of the valve core, complete the gear switching with a small torque, and improve the user use experience.

[0004] The second technical problem to be solved by the utility model is to provide a plug valve applied to the gear structure.

[0005] The technical scheme adopted by the utility model to solve the above first technical problem is as follows: a gear structure, the gear structure comprises a gear ware, and the gear ware comprises:

[0006] a first gear disc, the outer periphery of the first gear disc is provided with a plurality of first teeth, and adjacent two first teeth form a gear slot;

[0007] a second gear disc connected to the bottom of the first gear disc, the outer periphery of the second gear disc is provided with a plurality of second teeth, wherein the outer diameter of the first gear disc is greater than the outer diameter of the second gear disc.

[0008] According to an embodiment of the utility model, the top surface and / or bottom surface of each first tooth is provided with a first inclined surface, so that the thickness of the first tooth gradually decreases from inside to outside.

[0009] According to an embodiment of the utility model, the bottom surface of each second tooth is provided with a second inclined surface from inside to outside, so that the thickness of the second tooth gradually decreases from inside to outside.

[0010] According to an embodiment of the utility model, the number of first teeth is less than the number of second teeth, and the outer peripheral surface of the second gear disc does not exceed the curve surface where the groove bottom of adjacent first teeth is located, so that the oil storage structure is arranged between the plurality of first teeth and the plurality of second teeth.

[0011] According to an embodiment of the present application, wherein, two adjacent second gear teeth form an open slot, the oil storage structure comprises a plurality of oil storage grooves, the oil storage groove is formed by the open slot and the corresponding first gear tooth.

[0012] According to an embodiment of the present application, wherein, the gear structure further comprises:

[0013] The mounting column is provided with a mounting hole in the axial direction;

[0014] The reset spring is fixed to one end of the mounting hole, and the other end extends in the direction of the gear;

[0015] The gear bead is fixed to the other end of the reset spring, wherein the gear is provided with a plurality of gear grooves, and the gear bead can be inserted or separated from each gear groove to realize the switching of different gears.

[0016] According to an embodiment of the present application, wherein, one of the plurality of gear grooves is a first gear groove corresponding to the fire position, and the remaining gear grooves are second gear grooves for limiting the rotation angle of the valve core, the rotation angle between the first gear groove and the second gear groove adjacent to it is greater than or equal to 45°.

[0017] The utility model solves the technical scheme that the second technical problem adopts: a plug valve, the plug valve includes the gear structure, the valve core and the valve body that any one of the above is described, the valve core is connected in the inside of valve body, the gear is connected in the valve core, the mounting column is connected in the valve body.

[0018] According to an embodiment of the present application, wherein, the valve core is provided with an air inlet hole corresponding to each second gear groove along the circumferential direction.

[0019] According to an embodiment of the present application, wherein, a plurality of air inlet holes are arranged in an up-down staggered manner along the outer periphery of the valve core.

[0020] Compared with the prior art, the utility model has the following advantages or beneficial effects:

[0021] The utility model can reduce the friction area between the outer periphery of the gear and the gear bead, reduce the rotation torque of the valve core, the switching of the gear is more smooth, and the user experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above and other features and advantages of the present application will become more apparent by describing in detail example embodiments thereof with reference to the attached drawings.

[0023] Figure 1is a schematic view of a gear position indicator according to an exemplary embodiment.

[0024] Figure 2 is a perspective view of a gear position indicator according to an exemplary embodiment.

[0025] Figure 3 is a sectional view of a gear position indicator according to an exemplary embodiment.

[0026] Figure 4 is a schematic view of a stopcock according to an exemplary embodiment.

[0027] Figure 5 is a schematic view of a valve core according to an exemplary embodiment.

[0028] Figure 6 is a front view of a valve core according to an exemplary embodiment.

[0029] Figure 7 is Figure 6 a sectional view in the BB direction.

[0030] Figure 8 is a schematic view of the relative position of a valve core and a gear position according to an exemplary embodiment. BRIEF DESCRIPTION OF DRAWINGS

[0032] 1. A gear position indicator; 11. A first gear disc; 111. A first gear tooth; 1111. A first inclined surface; 112. A gear position slot; 12. A second gear disc; 121. A second gear tooth; 1211. A second inclined surface; 13. An oil storage structure;

[0033] 2. A mounting post; 21. A mounting hole;

[0034] 3. A valve core; 31. An air inlet hole; 31a. A first air inlet hole; 31b. A second air inlet hole; 32. A first air outlet hole group; 321. A first air outlet hole; 33. A second air outlet hole;

[0035] 4. A valve body;

[0036] 5. A valve stem. DETAILED DESCRIPTION

[0037] Example embodiments now will be described more fully hereinafter with reference to the accompanying drawings; however, the example embodiments can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the example embodiments to those skilled in the art. Like reference numerals refer to like elements throughout the figures, and thus description of the same will be simplified or omitted.

[0038] The terms "one", "an", "the", "said" are used to denote the presence of one or more elements / components / etc.; the terms "include" and "have" are used to indicate an open-ended inclusion and refer to additional elements / components / etc. that are not listed.

[0039] The utility model embodiment provides a gear structure, such as Figures 1-3 As shown in the figure, the gear structure comprises a gear 1, the gear 1 comprises a first gear disc 11 and a second gear disc 12, a plurality of first gear teeth 111 are arranged on the outer periphery of the first gear disc 11, and adjacent two first gear teeth 111 form a gear slot 112; the second gear disc 12 is connected to the bottom of the first gear disc 11, and a plurality of second gear teeth 121 are arranged on the outer periphery of the second gear disc 12, wherein the outer diameter of the first gear disc 11 is greater than the outer diameter of the second gear disc 12. Figures 1-3 It can be seen that the first gear disc 11 and the second gear disc 12 of the embodiment are in a stepped shape as a whole, which can reduce the friction area between the outer periphery of the gear 1 and the gear ball, reduce the rotating torque of the valve core 3, facilitate operation, and complete the switching of the gear with a small torque, so that the switching of the gear is smoother and the user experience is improved.

[0040] In a preferred embodiment of the utility model, as Figures 1-3 As shown in the figure, the top surface and / or bottom surface of each first gear tooth 111 is provided with a first inclined surface 1111, so that the thickness of the first gear tooth 111 gradually decreases from inside to outside. In the application, the top surface is one end of the first gear tooth 111 close to the valve rod 5, the bottom surface is one end of the first gear tooth 111 away from the valve rod 5, the thickness is the minimum distance between the top surface and the bottom surface of the first gear tooth 111, the first inclined surface 1111 on the top surface of the first gear tooth 111 is inclined downward from inside to outside, and the first inclined surface 1111 on the bottom surface of the first gear tooth 111 is inclined upward from inside to outside, so that the thickness of the first gear tooth 111 gradually decreases from inside to outside, that is, the edge of the first gear tooth 111 is thinned, and then the friction between the gear ball and the gear 1 is reduced.

[0041] In a preferred embodiment of the utility model, as Figures 1-3 As shown in the figure, the bottom surface of each second gear tooth 121 is provided with a second inclined surface 1211 from inside to outside, so that the thickness of the second gear tooth 121 gradually decreases from inside to outside. This design can reduce the friction area between the gear 1 and the valve core 3, that is, the force friction caused by the rotation of the gear ball and the gear 1 to the valve core 3 can be minimized, and the effect of reducing the torque can be achieved.

[0042] In a preferred embodiment of the utility model, as Figures 1-3As shown, the number of first teeth 111 is less than the number of second teeth 121, and the outer peripheral surface of the second gear disc 12 does not exceed the curved surface where the groove bottom of the adjacent first tooth 111 is located, so that the oil storage structure 13 is arranged between the plurality of first teeth 111 and the plurality of second teeth 121. In this way, the increased lubricating oil of the valve core 3 is stored in the oil storage structure 13, so that the lubricating oil is prevented from overflowing smoothly, the problem of too much lubricating oil running out is avoided, and the problem of increased torque of the cock valve is avoided.

[0043] In a preferred embodiment of the present application, as shown in Figures 1-3 As shown, the adjacent two second teeth 121 are arranged to form an open groove, and the oil storage structure 13 comprises a plurality of oil storage grooves, and the oil storage grooves are formed by the open groove and the corresponding first tooth 111. The oil storage groove can make full use of the space between the gear 1 and the valve core 3 and the valve body 4, prevent the lubricating oil from overflowing smoothly, and achieve the effect of reducing the torque.

[0044] In a preferred embodiment of the present application, as shown in Figures 1-4 The gear structure shown in the figure further comprises a mounting column 2, a reset spring and a gear bead, the mounting column 2 is connected to the valve body 4, and a mounting hole 21 is formed in the axial direction of the mounting column 2; one end of the reset spring is fixedly connected to the mounting hole 21, and the other end of the reset spring extends in the direction of the gear 1; the gear bead is fixedly connected to the other end of the reset spring, wherein the gear 1 is provided with a plurality of gear grooves 112, and the gear bead can be inserted into or separated from each gear groove 112 to realize switching of different gears. Through the cooperation of the gear 1, the gear bead and the reset spring, each gear has a direct hand feeling, so that the user can conveniently know the firepower size and operate conveniently.

[0045] Preferably, the structures of the plurality of gear grooves 112 are not completely the same, and each gear groove 112 can be different according to needs, so that each gear and different gears have different rotation jerk feelings when converting. In some designs, the firepower size and the gear groove 112 design angle or the gear rotation jerk feeling can be matched, for example, the smaller the firepower, the smaller the jerk feeling, and the user can also rotate the direction to be converted according to the hand feeling.

[0046] In a preferred embodiment of the present application, as shown in Figures 1-3 One of the plurality of gear grooves 112 shown in the figure is a first gear groove 112 corresponding to the 0-degree position of the valve core 3, and the remaining gear grooves 112 are second gear grooves 112 for limiting different rotation angles of the valve core 3, and the rotation angle between the first gear groove 112 and the adjacent second gear groove 112 is greater than or equal to 45°. The off position is also Figure 8In the OFF file, since the valve core 3 in the application can be started in the positive direction or in the reverse direction, in order to increase the sealing performance of the plug valve and ensure the sealing distance, the rotation angle of the OFF file to the reverse 1 file or the positive 1 file is greater than 45°, which prevents gas leakage and improves the safety of the plug valve.

[0047] The utility model embodiment provides a kind of plug valve, as shown in Figures 4-8 The plug valve includes the above-mentioned gear structure, valve core 3 and valve body 4, valve core 3 is connected to the inside of valve body 4, gear 1 is connected to valve core 3, mounting column 2 is connected to valve body 4. Because the plug valve includes any of the above-mentioned gear structures, the plug valve of the embodiment also has the above-mentioned technical effects, which can not only increase the feel of each gear, reduce the friction area between gear 1 and valve body 4, but also prevent further overflow of lubricating oil and improve the user's experience of gear switching.

[0048] The utility model embodiment provides a kind of plug valve, as shown in Figures 4-8 Valve core 3 is provided with air inlet hole 31 corresponding to each second gear slot 112 along its circumference. Multiple air inlet holes 31 can be divided into two kinds, one of which is first air inlet hole 31a for positive starting and air inlet, and the other is second air inlet hole 31b for reverse starting and air inlet, as shown in Figure 8 As shown in

[0049] In this embodiment, the user can start the ignition of the stove by rotating the knob in the positive direction, i.e. counterclockwise, to adjust the fire to the desired fire, such as high fire, medium fire, etc. It can also be directly started in the reverse direction, i.e. clockwise, to facilitate the user to start the stove directly with small fire, saving the process of first turning to large fire and then adjusting to small fire, and improving the user's cooking experience.

[0050] Preferably, the valve core 3 further includes a first air outlet group 32 and a second air outlet 33. The first air outlet group 32 is disposed on the side wall of the valve core 3 and includes a plurality of first air outlets 321 arranged circumferentially along the side wall of the valve core 3. The second air outlet 33 is disposed on the bottom wall of the valve core 3. The plurality of first air outlets 321 and the second air outlet 33 communicate with the first air inlet group 21 and the second air inlet group 22 via the valve core cavity 10. During forward actuation of the valve core, the air inlet pipe 11 of the valve body 1 communicates with the first air inlet 31a. Gas in the first air inlet group 31a can be discharged through the first air outlet group 32 and the second air outlet 33, or the second air outlet 33. During reverse actuation of the valve core, the air inlet pipe 11 of the valve body 1 communicates with the second air inlet 31b and the second air outlet 33. As the clockwise rotation angle of the valve core increases, the air flow rate of the second air inlet 31b gradually decreases. In this way, the user can directly start the stove by reverse starting, and start the stove directly to low heat, eliminating the process of turning to high heat and then adjusting to low heat, thereby improving the user's cooking experience.

[0051] Figure 8 It illustrates the precise control of firepower in five forward gears and three reverse gears. Forward gears 1-4 all use the first air outlet pipe 12 and the second air outlet pipe 13 to exhaust air, that is, the inner and outer rings exhaust. For forward gear 5, only the second air outlet pipe 13, that is, the inner ring exhausts air. Among them, forward gear 1 is a specific firepower adjustment point that is not the maximum fire, and is usually set to a commonly used non-high-fire cooking mode. This design can match the medium-temperature cooking mode by setting the aperture size; forward gear 2 is the maximum load position, that is, the commonly used stir-fry mode; forward gear 3 has a double-ring firepower reduction relative to forward gear 2, realizing firepower reduction control; forward gear 4 has a double-ring firepower reduction again relative to forward gear 3, realizing firepower reduction control; forward gear 5 only has inner ring exhaust, with minimum firepower load; this design satisfies the user's need to switch to low heat after cooking over high heat to avoid the problem of excessive angle rotation, thereby improving the user's cooking experience. The second air inlet 31b for reverse start-up all exhausts from the inner ring and operates at a low fire load. Reverse 1 is a low fire load; Reverse 2 has a lower fire power than Reverse 1; and Reverse 3 has a lower fire power than Reverse 2, representing the minimum fire load. Of course, the number of forward and reverse gears can also be 3, 4, 5, 6, 7, 8, 9, 10, or even more, depending on user needs. This application does not impose any restrictions.

[0052] The present invention provides a plug valve. Figures 4-8 The multiple air intake holes 31 are staggered along the outer periphery of the valve core 3. The valve core 3 does not cause a sudden increase or decrease in the air intake due to the change in the hole diameter during rotation. The air intake path is increased, the flow rate is slowed down, and a stable air intake flow rate is achieved, thus achieving stable combustion on the stove.

[0053] In the embodiments of the present application, the term "a plurality of" refers to two or more than two, unless otherwise explicitly limited. The terms "mounting", "connecting", "fixing" and the like should be understood in a broad sense, for example, "connecting" can be fixed connection, can also be detachable connection, or integral connection. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0054] In the description of the embodiments of the present application, it should be understood that the positions or position relationships indicated by the terms "upper", "lower" and the like are based on the positions or position relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or units referred to must have a particular direction, be constructed and operated in a particular position, therefore, it cannot be understood as a limitation on the embodiments of the present application.

[0055] In the description of the present application, the description of the terms "one embodiment", "one preferred embodiment" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0056] The above is only the preferred embodiment of the present application, and is not used to limit the embodiments of the present application. For those skilled in the art, the embodiments of the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present application shall be included in the protection scope of the embodiments of the present application.

Claims

1. A gear structure characterized by, The gear positioner (1) comprises: a first gear disc (11) having a plurality of first teeth (111) arranged on the outer periphery thereof, and each two adjacent first teeth (111) forming a gear slot (112); a second gear disc (12) connected to the bottom of the first gear disc (11) and having a plurality of second teeth (121) arranged on the outer periphery thereof, wherein the outer diameter of the first gear disc (11) is greater than the outer diameter of the second gear disc (12).

2. The gear structure according to claim 1, characterized by, The top surface and / or the bottom surface of each first tooth (111) is provided with a first inclined surface (1111) so that the thickness of the first tooth (111) gradually decreases from inside to outside.

3. The gear structure of claim 1, wherein, The bottom surface of each second tooth (121) is provided with a second inclined surface (1211) from inside to outside so that the thickness of the second tooth (121) gradually decreases from inside to outside.

4. The gear structure of claim 1, wherein, The number of first teeth (111) is less than the number of second teeth (121), and the outer peripheral surface of the second gear disc (12) does not exceed the curved surface at the bottom of the slot of the adjacent first tooth (111), so that the oil storage structure (13) is arranged between the plurality of first teeth (111) and the plurality of second teeth (121).

5. The gear structure according to claim 4, characterized in that, Each two adjacent second teeth (121) surround to form an open slot, and the oil storage structure (13) comprises a plurality of oil storage grooves formed by the open slot and the corresponding first tooth (111).

6. A range structure according to any one of claims 1-5, characterized in that Further comprising: a mounting column (2) having a mounting hole (21) formed in the axial direction; a return spring having one end fixedly connected to the mounting hole (21) and the other end extending towards the gear positioner (1); a gear bead fixedly connected to the other end of the return spring, wherein the gear positioner (1) is provided with a plurality of gear slots (112), and the gear bead can be inserted into or separated from each gear slot (112) to realize the switching of different gears.

7. The gear structure according to claim 6, characterized in that, One of the plurality of gear slots (112) is a first gear slot corresponding to the off position, and the remaining gear slots (112) are second gear slots for limiting the rotation angle of the valve core, and the rotation angle between the first gear slot and the adjacent second gear slot is greater than or equal to 45°.

8. A stopcock valve characterised in that, The gear positioner (1), the valve core (3) and the valve body (4) as claimed in claim 7, wherein the valve core (3) is connected to the inside of the valve body (4), the gear positioner (1) is connected to the valve core (3), and the mounting column (2) is connected to the valve body (4). The valve core (3) is provided with an air inlet hole (31) corresponding to each second gear slot along the circumferential direction thereof.

9. The stopcock valve of claim 8, wherein, The plurality of air inlet holes (31) are arranged in an up-down staggered manner along the outer periphery of the valve core (3).

10. The stopcock valve of claim 9, wherein, ​

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