Plug valve and stove including same

Abstract

The present invention discloses a plug valve and a stove including the same. The plug valve includes a first valve stem, a second valve stem, and a valve core. The first valve stem is used to pass through a knob hole provided on a panel of the stove. The second valve stem is provided at one end of the first valve stem near the valve core. The second valve stem is connected to the first valve stem and rotates synchronously with the first valve stem. The axis of the first valve stem is parallel to and staggered with the axis of the second valve stem. The valve core is connected to the second valve stem and rotates synchronously with the second valve stem. The valve core is coaxial with the second valve stem. In the present invention, the axes of the first valve stem and the second valve stem are staggered, so that the second valve stem deviates from the knob hole, and the valve core coaxial with the second valve stem can deviate from directly below the knob hole. Therefore, even if liquid flows from the knob hole of the panel to the bottom of the panel, the liquid will not flow further into the valve core, thereby avoiding damage to the valve core. This effectively improves plug valve leakage caused by rust inside the valve core due to water ingress, thereby increasing the service life of the plug valve.

Description

Technical Field

[0001] The present invention relates to the field of stoves, and in particular to a plug valve and a stove comprising the same. Background Art

[0002] Gas stoves are commonly used cooking appliances in people's lives. When using a gas stove, a user presses a knob on the stove and turns the knob, so that a valve stem connected to the knob controls the flow of gas during the rotation to change the fire size of the stove.

[0003] In existing stoves, the plug valve consists of only a valve stem connected to a valve core. The stem and valve core are coaxial and extend directly through the knob hole in the panel, with the valve core located directly below the knob hole. To prevent liquid from above the panel from entering the valve body through the knob hole, a waterproof ring is typically installed at the knob hole to close the gap between the knob hole and the valve stem. Furthermore, a waterproof rubber sleeve is also installed on the valve stem to enhance waterproofing. However, after long-term use, the waterproof rubber sleeve and waterproof ring easily age, becoming ineffective in preventing water from entering the valve core, which in turn damages the plug valve and affects the user experience. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defect in the prior art that the waterproof structure of the plug valve is easily aged after long-term use, resulting in poor waterproof effect of the valve core, and provide a plug valve and a stove including the same.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] A plug valve for a stove, comprising a first valve stem, a second valve stem, and a valve core. The first valve stem is used to pass through a knob hole provided on a panel of the stove. The second valve stem is provided at one end of the first valve stem close to the valve core. The second valve stem is connected to the first valve stem and rotates synchronously with the first valve stem. The axis of the first valve stem is parallel to and staggered with the axis of the second valve stem. The valve core is connected to the second valve stem and rotates synchronously with the second valve stem. The valve core and the second valve stem are coaxial.

[0007] In this solution, the axes of the first valve stem and the second valve stem are staggered, so that the second valve stem deviates from the knob hole, and the valve core coaxial with the second valve stem can deviate from directly below the knob hole. Therefore, even if the liquid flows from the knob hole of the panel to the bottom of the panel, the liquid will not flow further into the valve core, thereby avoiding damage to the internal part of the valve core, effectively improving the leakage of the plug valve caused by rust inside the valve core due to water ingress, and increasing the service life of the plug valve.

[0008] Preferably, the first valve stem is fixedly connected to the second valve stem, and the first valve stem rotates around the axis of the second valve stem.

[0009] In this solution, the above arrangement enables the first valve stem to directly drive the second valve stem to rotate synchronously during rotation, without the need to directly set up a transmission structure on the first valve stem and the second valve stem, making the overall structure of the plug valve simpler.

[0010] Preferably, the plug valve further comprises a connecting rod, one end of the connecting rod is connected to an end of the first valve stem close to the valve core, and the other end of the connecting rod is connected to an end of the second valve stem away from the valve core.

[0011] In this solution, the above layout makes the overall structure of the plug valve more compact.

[0012] Preferably, the plug valve further comprises a reset member connected to the second valve stem, and the reset member is used to apply a force to the second valve stem to move in a direction away from the valve core.

[0013] In this solution, the reset member is used to drive the second valve stem to move upward to the initial position when no downward force is applied to the second valve stem, thereby resetting the first valve stem connected to the second valve stem to facilitate the next ignition operation.

[0014] Preferably, the plug valve further comprises a pressure plate, which is sleeved on the second valve stem, and the reset member comprises an elastic pressure piece, and one end surface of the pressure plate facing the valve core abuts against the elastic pressure piece.

[0015] In this solution, the second valve stem is reset by the cooperation of the pressure plate and the elastic pressure piece. In addition, the provision of the pressure plate can make the setting position of the elastic pressure piece more flexible, preventing the second valve stem from interfering with the elastic pressure piece during movement, thereby ensuring the normal use of the plug valve.

[0016] Preferably, the distance between the axis of the first valve stem and the axis of the second valve stem is greater than or equal to 30 mm.

[0017] In this solution, the above arrangement enables the valve core to completely deviate from the bottom of the knob hole, effectively preventing water from entering the valve core.

[0018] Preferably, the plug valve further comprises a baffle, wherein the baffle is connected to an end of the first valve stem away from the valve core, and the baffle is used to be arranged above the panel to block the knob hole.

[0019] In this solution, the shielding plate is used to shield the gap between the first valve stem and the knob hole to prevent liquid from entering the bottom of the panel through the gap between the two, thereby improving the waterproof effect of the plug valve.

[0020] Preferably, the plug valve further comprises a handle, and the handle is provided on an end surface of the baffle away from the first valve stem.

[0021] In this solution, a handle is further provided above the shielding plate to facilitate the user to perform a downward pressing and rotating operation, thereby improving the user experience.

[0022] A stove comprises a panel and the above-mentioned plug valve, wherein the first valve stem of the plug valve passes through the knob hole on the panel, and the second valve stem is completely located below the panel.

[0023] In this solution, the ignition and shutdown functions of the stove are achieved by controlling the opening and closing of the stopcock.

[0024] Preferably, the knob hole is an annular hole, and the center of the annular hole coincides with the axis of the second valve stem.

[0025] In this solution, the first valve stem rotates in the annular hole along the circumferential direction of the annular hole, thereby realizing the rotation of the second valve stem and the valve core.

[0026] Preferably, the knob hole is a semicircular ring hole, and the circumferential side walls of the semicircular ring hole respectively form a first limiting portion and a second limiting portion, and the first limiting portion and the second limiting portion are respectively used to limit the movement of the first valve stem toward the circumferential sides of the semicircular ring hole.

[0027] In this solution, the first limiting portion and the second limiting portion can limit excessive rotation of the first valve stem on both sides of the semicircular ring hole in the circumferential direction, thereby preventing damage to the plug valve.

[0028] The positive progressive effect of the present invention is that the axes of the first valve stem and the second valve stem are staggered, so that the second valve stem deviates from the knob hole, and the valve core coaxial with the second valve stem can deviate from directly below the knob hole. Therefore, even if the liquid flows from the knob hole of the panel to the bottom of the panel, the liquid will not flow further into the valve core, thereby avoiding damage to the internal part of the valve core, effectively improving the leakage of the plug valve caused by rust inside the valve core due to water inflow, and increasing the service life of the plug valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The figure is a schematic diagram of the three-dimensional structure of a stove according to a preferred embodiment of the present invention.

[0030] Figure 2 The figure is a schematic diagram of the internal structure of a stove according to a preferred embodiment of the present invention.

[0031] Figure 3 This is a structural diagram of the cooperation between the first valve stem and the panel in a preferred embodiment of the present invention.

[0032] Figure 4The figure is a schematic diagram of the three-dimensional structure of a plug valve according to a preferred embodiment of the present invention.

[0033] Figure 5 Schematic diagram of the internal structure of a plug valve according to a preferred embodiment of the present invention.

[0034] Figure 6 FIG. 1 is a schematic diagram of the three-dimensional structure of a panel according to a preferred embodiment of the present invention.

[0035] Description of reference numerals:

[0036] Panel 1

[0037] Knob hole 11

[0038] The first limiting portion 111

[0039] The second limiting portion 112

[0040] Shell 2

[0041] Accommodating chamber 21

[0042] Plug valve 3

[0043] Valve body 31

[0044] Spool 32

[0045] First valve stem 33

[0046] Second valve stem 34

[0047] Connecting rod 35

[0048] Shield 36

[0049] Handle 37

[0050] Pressure plate 38

[0051] Elastic pressing piece 39 DETAILED DESCRIPTION

[0052] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0053] like Figure 1 and Figure 2 As shown, this embodiment provides a cooker comprising a panel 1, a housing 2, and a stopcock 3. Ignition and shutdown functions of the cooker are achieved by controlling the opening and closing of the stopcock 3. Specifically, the housing 2 is a hollow cavity with an opening at its upper end. The panel 1 is mounted on the housing 2. The panel 1 and the housing 2 together form a receiving chamber 21 for accommodating components such as the stopcock 3 and the gas pipeline, thereby protecting these components.

[0054] like Figure 3-Figure 6As shown, the plug valve 3 includes a valve body 31, a valve core 32, a first valve stem 33 and a second valve stem 34, wherein the valve body 31, the valve core 32 and the second valve stem 34 are completely located in the accommodating cavity 21 below the panel 1, the lower end of the first valve stem 33 is located in the accommodating cavity 21, and the upper end of the first valve stem 33 passes through the panel 1 and extends to the top of the panel 1 to facilitate the user to perform downward pressing and rotating operations.

[0055] Specifically, if Figure 5 As shown, the valve core 32 is arranged inside the valve body 31 and can rotate relative to the valve body 31 to realize the opening and closing of the plug valve 3 and the flow adjustment of the gas, thereby realizing the ignition and shutdown functions of the stove and the adjustment of the flame size.

[0056] like Figure 3 、 Figure 4 and Figure 6 As shown, the panel 1 is provided with a knob hole 11 for the first valve stem 33 to pass through, and the end of the first valve stem 33 away from the valve core 32 (that is, the upper end of the first valve stem 33) passes through the knob hole 11 and extends to the top of the panel 1, and the second valve stem 34 is provided at the end of the first valve stem 33 close to the valve core 32 (that is, the lower end of the first valve stem 33), the upper end of the second valve stem 34 is connected to the lower end of the first valve stem 33, and the lower end of the second valve stem 34 is connected to the valve core 32, and the first valve stem 33, the second valve stem 34 and the valve core 32 can rotate synchronously.

[0057] It should be noted that the synchronous rotation of the first valve stem 33 , the second valve stem 34 and the valve core 32 in this embodiment refers to the simultaneous rotation of the three, and does not mean that the rotation directions, rotation ranges and other factors of the three are also the same.

[0058] Among them, the specific connection method between the valve core 32 and the valve body 31 and the specific connection method between the second valve stem 34 and the valve core 32 belong to the existing technology in this field and are not described here in detail.

[0059] like Figure 3 As shown, the valve core 32 is coaxial with the second valve stem 34, the axis of the first valve stem 33 is parallel to the axis of the second valve stem 34 and both are parallel to the vertical direction, and the axis of the first valve stem 33 is staggered with the axis of the second valve stem 34, so that the second valve stem 34 is set away from the knob hole 11, and the valve core 32 coaxial with the second valve stem 34 can deviate from the bottom of the knob hole 11, so that even if the liquid flows from the knob hole 11 of the panel 1 to the bottom of the panel 1, the liquid will not flow further into the valve core 32, thereby avoiding damage to the internal part of the valve core 32, effectively improving the leakage of the plug valve 3 caused by rust inside the valve core 32 due to water inflow, and improving the service life of the plug valve 3.

[0060] Preferably, the distance between the axis of the first valve stem 33 and the axis of the second valve stem 34 is greater than or equal to 30 mm. The above arrangement enables the valve core 32 to completely deviate from the bottom of the knob hole 11, effectively preventing water from entering the valve core 32.

[0061] like Figure 4 As shown, in this embodiment, the first valve stem 33 is fixedly connected to the second valve stem 34. The first valve stem 33 rotates around the axis of the second valve stem 34, and the second valve stem 34 and the valve core 32 both rotate around their own axes. Specifically, the plug valve 3 also includes a connecting rod 35, one end of which is connected to the end of the first valve stem 33 near the valve core 32, and the other end of the connecting rod 35 is connected to the end of the second valve stem 34 away from the valve core 32, thereby making the overall structure of the plug valve 3 more compact. The fixed connection between the first valve stem 33 and the second valve stem 34 allows the first valve stem 33 to directly drive the second valve stem 34 to rotate synchronously during rotation, eliminating the need for a separate transmission structure directly provided on the first valve stem 33 and the second valve stem 34, thereby simplifying the overall structure of the plug valve 3.

[0062] The connection between the connecting rod 35 and the first valve stem 33 and the second valve stem 34 can be achieved by fasteners such as bolts. In addition, the first valve stem 33, the second valve stem 34 and the connecting rod 35 can be integrally formed, or separately formed and then assembled, or two of them can be integrally formed and then assembled with another separately formed structure.

[0063] like Figure 6 As shown, the knob hole 11 in this embodiment is an annular hole, the center of which coincides with the axis of the second valve stem 34. The first valve stem 33 rotates circumferentially within the annular hole, which is equivalent to the first valve stem 33 rotating about the axis of the second valve stem 34. This ensures that the second valve stem 34 and the valve core 32 can rotate about their own axes without deviation, thus ensuring the stability of the plug valve 3 during use.

[0064] like Figure 6 As shown, the knob hole 11 in this embodiment is a semicircular ring hole, and the circumferential side walls of the semicircular ring hole respectively form a first limiting portion 111 and a second limiting portion 112. The first limiting portion 111 and the second limiting portion 112 are respectively used to limit the movement of the first valve stem 33 toward the circumferential sides of the semicircular ring hole, limit the excessive rotation of the first valve stem 33 on the circumferential sides of the semicircular ring hole, and prevent damage to the plug valve 3.

[0065] It should be noted that the semicircular ring hole referred to in this embodiment only refers to an incomplete circular ring hole, that is, the arc of the semicircular ring hole is not limited to 180°, and the specific angle can be designed according to the actual rotation requirements of the valve core 32.

[0066] In other alternative embodiments, the knob hole 11 may also be a circular hole.

[0067] like Figure 3 and Figure 4 As shown, the stopcock valve 3 also includes a baffle plate 36 arranged above the panel 1. The baffle plate 36 is connected to the upper end of the first valve stem 33 and is used to block the gap between the first valve stem 33 and the knob hole 11 to prevent liquid from entering the bottom of the panel 1 through the gap between the two, thereby improving the waterproof effect of the stopcock valve 3.

[0068] like Figure 3 and Figure 4 As shown, the stopcock valve 3 also includes a handle, which is arranged on an end surface of the baffle 36 away from the first valve stem 33. The overall size of the handle 37 is smaller than the overall size of the baffle 36 to facilitate the user's downward pressing and rotating operations, thereby improving the user experience.

[0069] When the first valve stem 33 is pressed down and rotated, the baffle 36 and the handle 37 rotate together with the first valve stem 33. During the rotation process, no matter to which angle the first valve stem 33 rotates, the baffle 36 can always completely block the knob hole 11, thereby improving the waterproof effect of the stopcock.

[0070] like Figure 4 As shown, the plug valve 3 further includes a reset member connected to the second valve stem 34. The reset member is used to apply a force to the second valve stem 34 to move it in a direction away from the valve core 32. When no downward force is applied to the second valve stem 34, the reset member is used to drive the second valve stem 34 to move upward to the initial position, thereby achieving the reset of the first valve stem 33 connected to the second valve stem 34, thereby facilitating the next ignition operation.

[0071] Specifically, if Figure 4 As shown, the plug valve 3 also includes a pressure plate 38, which is sleeved on the second valve stem 34. The reset member includes an elastic pressure piece 39. The end surface of the pressure plate 38 facing the valve core 32 abuts against the elastic pressure piece 39. The second valve stem 34 is reset by the cooperation of the pressure plate 38 and the elastic pressure piece 39. In addition, the provision of the pressure plate 38 can make the setting position of the elastic pressure piece 39 more flexible, prevent the second valve stem 34 from interfering with the elastic pressure piece 39 during movement, and ensure the normal use of the plug valve 3.

[0072] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship of the device or component during normal use, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0073] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. A plug valve for a stove, characterized in that: The plug valve includes a first valve stem, a second valve stem, and a valve core. The first valve stem is used to pass through a knob hole provided on a panel of the cooker. The second valve stem is provided at one end of the first valve stem close to the valve core. The second valve stem is connected to the first valve stem and rotates synchronously with the first valve stem. The axis of the first valve stem and the axis of the second valve stem are parallel to and staggered with each other. The valve core is connected to the second valve stem and rotates synchronously with the second valve stem. The valve core and the second valve stem are coaxial. The first valve stem is fixedly connected to the second valve stem, and the first valve stem rotates around the axis of the second valve stem; The plug valve further includes a connecting rod, one end of which is connected to an end of the first valve stem close to the valve core, and the other end of which is connected to an end of the second valve stem away from the valve core.

2. The plug valve according to claim 1, wherein The plug valve further includes a reset member connected to the second valve stem, and the reset member is used to apply a force to the second valve stem moving in a direction away from the valve core.

3. The plug valve according to claim 2, wherein: The plug valve further comprises a pressure plate, which is sleeved on the second valve stem. The reset member comprises an elastic pressure piece, and one end surface of the pressure plate facing the valve core abuts against the elastic pressure piece.

4. The plug valve according to claim 1, wherein: The distance between the axis of the first valve stem and the axis of the second valve stem is greater than or equal to 30 mm.

5. The plug valve according to claim 1, wherein: The plug valve further includes a baffle plate connected to an end of the first valve stem away from the valve core, and the baffle plate is used to be arranged above the panel to block the knob hole.

6. The plug valve according to claim 5, characterized in that The plug valve further includes a handle, which is arranged on an end surface of the baffle away from the first valve stem.

7. A stove, characterized in that: The cooker includes a panel and the plug valve according to any one of claims 1 to 6, wherein the first valve stem of the plug valve passes through the knob hole on the panel, and the second valve stem is completely located below the panel.

8. The cooker according to claim 7, wherein: The knob hole is an annular hole, and the center of the annular hole coincides with the axis of the second valve stem.

9. The cooker according to claim 8, characterized in that: The knob hole is a semicircular ring hole, and the circumferential side walls of the semicircular ring hole respectively form a first limiting portion and a second limiting portion, and the first limiting portion and the second limiting portion are respectively used to limit the movement of the first valve stem toward the circumferential sides of the semicircular ring hole.

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