Asynchronous electric control two-stage adjusting plug valve

Abstract

The utility model discloses an asynchronous electric control two-stage adjusting plug valve, and belongs to the technical field of plug valves. The valve body is provided with a valve element cavity, a main fire channel, a main fire air inlet hole, a secondary fire channel and a secondary fire air inlet hole; the valve element is rotatably arranged in the valve element cavity; the flow adjusting plate is connected with the valve element and covers the main fire gas inlet hole and the secondary fire gas inlet hole, the flow adjusting plate is provided with a flow adjusting hole, and after passing through the valve element, fuel gas is shunted into the main fire gas inlet hole and the secondary fire gas inlet hole through the flow adjusting hole and rotates along with the flow adjusting plate; the communication area between the flow adjusting hole and the main fire air inlet hole and the secondary fire air inlet hole is adjusted; the motor is in linkage connection with the valve element. Due to the fact that the ventilation volumes of the flow adjusting holes are different, the flows entering the main fire channel and the secondary fire channel are different, accurate control over the size of double-channel flames can be achieved in cooperation with an electric control adjusting mode, and combination of the flames with the different flows in the main fire channel and the secondary fire channel can be achieved.

Description

Technical Field

[0001] This utility model belongs to the field of plug valve technology, specifically relating to an asynchronous electrically controlled two-stage regulating plug valve. Background Technology

[0002] A plug valve is a type of gas valve commonly used in civil gas appliances. This valve is used for manual operation to control the switching of gas supply and to adjust the flame intensity by rotating the gear controller.

[0003] Current stopcock valves often have multiple gas outlet channels, but they cannot achieve precise firepower control of multiple gas outlet channels through a single control knob, nor can they achieve flame combinations with different flow rates from multiple gas outlet channels. Their adjustability is poor and cannot meet users' needs for more precise firepower when cooking with a gas stove. Summary of the Invention

[0004] This invention addresses the aforementioned problems in the existing technology by proposing an asynchronous, electrically controlled, two-stage regulating plug valve capable of achieving different flow rate combinations in multiple air outlet channels.

[0005] This utility model can be achieved through the following technical solutions:

[0006] An asynchronous electrically controlled two-stage regulating plug valve includes:

[0007] The valve body has a valve core cavity, a main fire channel, a main fire air inlet, a secondary fire channel, and a secondary fire air inlet.

[0008] A valve core, which is rotatably disposed within the valve core cavity;

[0009] A flow regulating plate is connected to the valve core and covers the main burner air inlet and the secondary burner air inlet. The flow regulating plate has a flow regulating hole. After the gas passes through the valve core, it is diverted to the main burner air inlet and the secondary burner air inlet through the flow regulating hole. As the valve core drives the flow regulating plate to rotate, the connection area between the flow regulating hole and the main burner air inlet and the secondary burner air inlet is adjusted.

[0010] An electric motor is connected in linkage with the valve core. The electric motor drives the valve core to rotate, thereby adjusting the flame output of the main fire channel and the secondary fire channel.

[0011] As a further improvement of this utility model, it also includes a valve core coupling, which is connected to the valve core, and the motor is connected to the valve core coupling via a gear set.

[0012] As a further improvement of this utility model, the gear set includes a transmission gear assembly and a drive gear, the front and rear sides of the valve core coupling are respectively connected to the valve core and the drive gear, and the transmission gear assembly meshes with the drive gear.

[0013] As a further improvement of this utility model, a Hall sensor is also provided between the drive gear and the valve core coupling. The Hall sensor and the valve core coupling have three position sensing points, namely the flame-off sensing point, the maximum flame sensing point, and the flame-keeping sensing point.

[0014] As a further improvement of this utility model, it also includes a rear cover, which is installed on the back of the valve body, and a space is reserved between the rear cover and the valve body to form a rear cover cavity.

[0015] As a further improvement of this utility model, the valve body also has an electromagnetic valve cavity, on which an electromagnetic valve is installed and has an air inlet and an air outlet. The connection between the air inlet and the air outlet of the electromagnetic valve cavity is opened or closed by energizing or de-energizing the electromagnetic valve.

[0016] As a further improvement of this utility model, the valve core surface is provided with a valve core air guide groove, a valve core air inlet hole and a valve core air outlet hole, the air outlet hole of the solenoid valve cavity is connected to the valve core air guide groove, and the valve core air inlet hole is opened on the valve core air guide groove and is connected to the valve core air outlet hole.

[0017] As a further improvement of this utility model, the flow regulating plate is located in the rear cover cavity and is set close to the valve body. The flow regulating plate has a through hole in the middle that communicates with the valve core outlet hole. The gas flowing out from the valve core outlet hole enters the rear cover cavity through the through hole, and then is diverted to the main burner inlet hole and the secondary burner inlet hole through the flow regulating hole.

[0018] As a further improvement of this utility model, a sealing gasket is provided between the flow regulating plate and the valve body, and the sealing gasket has a through hole for the flow regulating hole to communicate with the main fire air inlet and the secondary fire air inlet.

[0019] As a further improvement of this utility model, a first spring is provided between the flow regulating plate and the rear cover, and the flow regulating plate and the sealing gasket are pressed tightly onto the valve body by the first spring.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. After the gas passes through the valve core, it is distributed to the main burner channel and the secondary burner channel through the flow regulation holes on the flow regulation plate. Since the gas flow of each flow regulation hole is different, the flow of the main burner channel and the secondary burner channel are different. With the electronic control adjustment, the precise control of the flame size of the dual channels can be achieved, and different flow combinations of flames in the main burner channel and the secondary burner channel can be realized to meet the user's firepower needs during cooking.

[0022] 2. The Hall sensor and valve core coupling have three position sensing points, namely the flame-off sensing point, the maximum flame sensing point, and the flame-keeping sensing point. Through the setting of the Hall sensor, the motor can accurately adjust the valve core to the flame-off position, the maximum flame position, and the flame-keeping position. Attached Figure Description

[0023] Figure 1 This is an exploded view and airflow path diagram of the asynchronous electrically controlled two-stage regulating plug valve according to Embodiment 1 of this utility model;

[0024] Figure 2 This is the utility model Figure 1 A diagram from another perspective;

[0025] Figure 3 This is a cross-sectional view of each side of the asynchronous electrically controlled two-stage regulating plug valve of Embodiment 1 of this utility model (the flow regulating plate and the air inlet of the second valve body are in the initial state position);

[0026] Figure 4 This is a cross-sectional view of each side of the asynchronous electrically controlled two-stage regulating plug valve of Embodiment 1 of this utility model (the flow regulating plate and the air inlet of the second valve body are in a <90° connection state).

[0027] Figure 5 This is a cross-sectional view of each side of the asynchronous electrically controlled two-stage regulating plug valve of Embodiment 1 of this utility model (the flow regulating plate and the air inlet of the second valve body are in the maximum fire connection state position of ≥90°).

[0028] Figure 6 This is a cross-sectional view of each side of the asynchronous electrically controlled two-stage regulating plug valve of Embodiment 1 of this utility model (the flow regulating plate and the air inlet of the second valve body are in the >90° flame-keeping connection position).

[0029] Figure 7 This is an exploded schematic diagram of an asynchronous electrically controlled two-stage regulating plug valve according to Embodiment 2 of this utility model.

[0030] In the diagram, 100 is the valve body; 101 is the valve body air inlet; 110 is the main burner channel; 111 is the main burner air inlet; 120 is the secondary burner channel; and 121 is the secondary burner air inlet.

[0031] 130. Valve core; 131. Valve core air guide groove; 132. Valve core air inlet; 133. Valve core air outlet; 134. Spring cavity; 135. Second spring;

[0032] 140. Flow regulating plate; 141. Flow regulating hole; 142. Through hole;

[0033] 150. Electric motor; 151. Transmission gear assembly; 152. Drive gear;

[0034] 160. Valve core coupling;

[0035] 170. Hall effect sensor; 171. Position sensing point;

[0036] 180. Rear cover; 181. Rear cover cavity; 182. Rear cover sealing ring;

[0037] 190. Solenoid valve chamber; 191. Solenoid valve; 192. Solenoid valve chamber air inlet; 193. Solenoid valve chamber air outlet;

[0038] 200. Sealing gasket; 210. First spring;

[0039] 220. Air damper. Detailed Implementation

[0040] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. The technical methods of the present invention will be further described, but the present invention is not limited to these embodiments.

[0041] Example 1

[0042] like Figure 1-6 As shown, this utility model provides an asynchronous electrically controlled two-stage regulating plug valve, comprising:

[0043] The valve body 100 has a valve core cavity, a main fire channel 110 and a main fire air inlet 111, a secondary fire channel 120 and a secondary fire air inlet 121;

[0044] Valve core 130 is rotatably disposed within the valve core cavity;

[0045] A flow regulating plate 140 is connected to the valve core 130 and covers the main burner air inlet 111 and the secondary burner air inlet 121. The flow regulating plate 140 has a flow regulating hole 141. After the gas passes through the valve core 130, it is diverted to the main burner air inlet 111 and the secondary burner air inlet 121 through the flow regulating hole 141. As the valve core 130 drives the flow regulating plate 140 to rotate, the connection area between the flow regulating hole 141 and the main burner air inlet 111 and the secondary burner air inlet 121 is adjusted.

[0046] The motor 150 is linked to the valve core 130. The motor 150 drives the valve core 130 to rotate, thereby adjusting the flame output of the main flame channel 110 and the secondary flame channel 120.

[0047] In other words, in this embodiment, the main flame channel 110 and the secondary flame channel 120 of the stopcock valve have independent air inlets. After the gas passes through the valve core 130, it is distributed to the main flame channel 110 and the secondary flame channel 120 through the flow adjustment holes 141 on the flow adjustment plate 140. When the valve core 130 rotates, it will drive the flow adjustment plate 140 to rotate synchronously. Since the air volume of each flow adjustment hole 141 is different, the flow rates of the main flame channel 110 and the secondary flame channel 120 are different. With the help of electronic control adjustment, the precise control of the flame size of the two channels can be achieved, and flame combinations with different flow rates in the main flame channel 110 and the secondary flame channel 120 can be realized to meet the user's needs for firepower during cooking.

[0048] It also includes a valve core coupling 160, which is connected to the valve core 130 via a pin, and a motor 150 is connected to the valve core coupling 160 via a gear set. Specifically, the gear set includes a transmission gear assembly 151 and a drive gear 152. The front and rear sides of the valve core coupling 160 are connected to the valve core 130 and the drive gear 152, respectively. The transmission gear assembly 151 and the drive gear 152 mesh, that is, the motor 150 drives the transmission gear assembly 151 to rotate, thereby driving the drive gear 152 to rotate. The rotation of the drive gear 152 sequentially drives the valve core coupling 160, the valve core 130, and the flow regulating plate 140 to rotate, so as to achieve the purpose of synchronously regulating the flame output of the main fire channel 110 and the secondary fire channel 120.

[0049] Preferably, a Hall sensor 170 is also provided between the drive gear 152 and the valve core coupling 160. The Hall sensor 170 and the valve core coupling 160 have three position sensing points 171, namely the flame-off sensing point, the maximum flame sensing point, and the flame-keeping sensing point. It is through the setting of the Hall sensor 170 that the motor 150 can accurately adjust the valve core 130 to the flame-off position, the maximum flame position, and the flame-keeping position.

[0050] Preferably, it also includes a rear cover 180, which is installed on the back of the valve body 100. A space is reserved between the rear cover 180 and the valve body 100 to form a rear cover cavity 181. A rear cover sealing ring 182 is provided between the rear cover 180 and the valve body 100 to ensure the sealing of the rear cover cavity 181.

[0051] Preferably, the valve body 100 also has a solenoid valve chamber 190, on which a solenoid valve 191 is installed and has a solenoid valve chamber air inlet 192 and a solenoid valve chamber air outlet 193. The connection between the solenoid valve chamber air inlet 192 and the solenoid valve chamber air outlet 193 is opened or closed by energizing or de-energizing the solenoid valve 191.

[0052] That is, the gas outlet 193 of the solenoid valve cavity will only open when the solenoid valve 191 is energized, and the gas can smoothly enter the rear cover cavity 181 through the valve core 130.

[0053] Preferably, the valve core 130 has a valve core air guide groove 131, a valve core air inlet 132 and a valve core air outlet 133 on its surface. The solenoid valve cavity air outlet 193 is connected to the valve core air guide groove 131, and the valve core air inlet 132 is opened on the valve core air guide groove 131 and is connected to the valve core air outlet 133.

[0054] Preferably, the flow regulating plate 140 is located inside the rear cover cavity 181 and is set close to the valve body 100. The flow regulating plate 140 has a through hole 142 in the middle that communicates with the valve core air outlet 133. The gas flowing out from the valve core air outlet 133 enters the rear cover cavity 181 through the through hole 142, and then is diverted to the main burner air inlet 111 and the secondary burner air inlet 121 through the flow regulating hole 141.

[0055] Specifically, the gas flow path is as follows:

[0056] Gas enters through the valve body inlet 101 of the valve body 100, passes through the solenoid valve inlet 192 and enters the solenoid valve cavity 190. After the solenoid valve 191 is energized, the gas flows out from the solenoid valve cavity outlet 193 to the valve core guide groove 131, and then passes through the valve core inlet 132, the valve core outlet 133 and the through hole 142 in sequence before entering the rear cover cavity 181. Finally, it is diverted from the flow regulating hole 141 to the main flame inlet 111 and the secondary flame inlet 121 and flows outward along the main flame channel 110 and the secondary flame channel 120 to form a flame.

[0057] In addition, a sealing angle is formed between the air outlet 193 of the solenoid valve chamber and the air inlet 130 of the valve core. Only when the valve core 130 is rotated to a certain angle will the air outlet 193 of the solenoid valve chamber and the air inlet 130 of the valve core be connected, so as to play the role of connecting and closing the main air intake.

[0058] Preferably, a sealing gasket 200 is provided between the flow regulating plate 140 and the valve body 100. The sealing gasket 200 has a through hole for the flow regulating hole 141 to communicate with the main fire air inlet hole 111 and the secondary fire air inlet hole 121. As the flow regulating plate 140 rotates, the conduction area between the flow regulating hole 141 and the main fire air inlet hole 111 and the secondary fire air inlet hole 121 is changed, thereby changing the flow rate of the main fire channel 110 and the secondary fire channel 120.

[0059] Preferably, a first spring 210 is provided between the flow regulating plate 140 and the rear cover 180. The first spring 210 presses the flow regulating plate 140 and the sealing gasket 200 onto the valve body 100. The sealing gasket 200 makes the valve body 100 and the flow regulating plate 140 seal each other to prevent flow exchange and ensure that the gas can only enter through the flow regulating hole 141 and then along the main burner inlet hole 111 and the secondary burner inlet hole 121.

[0060] Preferably, the valve core 130 also has a spring cavity 134, in which a second spring 135 is installed, and the two ends of the second spring 135 abut against the valve core 130 and the valve core coupling 160, respectively.

[0061] The second spring 135 positions the valve core 130 within the valve core cavity and automatically eliminates the gap between the conical plug and the valve body 100 caused by wear. It also ensures that the spring force applied to the valve core 130 will not cause the valve core 130 to lift off the valve core cavity or move in a manner that could lead to gas leakage.

[0062] In addition, the flow regulating holes 141 on the flow regulating plate 140 can be configured as multiple independent air holes, or fan-shaped holes, or other shapes.

[0063] Example 2

[0064] like Figure 7 As shown, the difference between Embodiment 2 and Embodiment 1 is that Embodiment 2 integrates dampers 220 at the outlets of the main fire channel 110 and the fire outlet channel. By integrating the dampers 220 onto the valve body 100, they can be directly connected to the burner head without the need for additional accessories, making installation simpler and more convenient, and saving costs.

[0065] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of any combination of the above technical features. The above are specific embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

[0066] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0067] Furthermore, in this utility model, descriptions involving "", "a", "one", etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "" or "a" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0068] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0069] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. An asynchronous electrically controlled two-stage regulating plug valve, characterized in that, include: The valve body has a valve core cavity, a main fire channel, a main fire air inlet, a secondary fire channel, and a secondary fire air inlet. A valve core, which is rotatably disposed within the valve core cavity; A flow regulating plate is connected to the valve core and covers the main burner air inlet and the secondary burner air inlet. The flow regulating plate has a flow regulating hole. After the gas passes through the valve core, it is diverted to the main burner air inlet and the secondary burner air inlet through the flow regulating hole. As the valve core drives the flow regulating plate to rotate, the connection area between the flow regulating hole and the main burner air inlet and the secondary burner air inlet is adjusted. An electric motor is connected in linkage with the valve core. The electric motor drives the valve core to rotate, thereby adjusting the flame output of the main fire channel and the secondary fire channel.

2. The asynchronous electrically controlled two-stage regulating plug valve according to claim 1, characterized in that, It also includes a valve core coupling, which is connected to the valve core, and the motor is connected to the valve core coupling via a gear set.

3. The asynchronous electrically controlled two-stage regulating plug valve according to claim 2, characterized in that, The gear set includes a transmission gear assembly and a drive gear. The front and rear sides of the valve core coupling are respectively connected to the valve core and the drive gear. The transmission gear assembly meshes with the drive gear.

4. The asynchronous electrically controlled two-stage regulating plug valve according to claim 3, characterized in that, A Hall sensor is also provided between the drive gear and the valve core coupling. The Hall sensor and the valve core coupling have three position sensing points, namely the flame-off sensing point, the maximum flame sensing point, and the flame-keeping sensing point.

5. The asynchronous electrically controlled two-stage regulating plug valve according to claim 1, characterized in that, It also includes a rear cover, which is installed on the back of the valve body, and a space is reserved between the rear cover and the valve body to form a rear cover cavity.

6. The asynchronous electrically controlled two-stage regulating plug valve according to claim 5, characterized in that, The valve body also has a solenoid valve cavity, which is equipped with a solenoid valve and has a solenoid valve cavity air inlet and an solenoid valve cavity air outlet. The connection between the solenoid valve cavity air inlet and the solenoid valve cavity air outlet is opened or closed by energizing or de-energizing the solenoid valve.

7. An asynchronous electrically controlled two-stage regulating plug valve according to claim 6, characterized in that, The valve core surface is provided with a valve core air guide groove, a valve core air inlet hole and a valve core air outlet hole. The air outlet hole of the solenoid valve cavity is connected to the valve core air guide groove, and the valve core air inlet hole is opened on the valve core air guide groove and is connected to the valve core air outlet hole.

8. An asynchronous electrically controlled two-stage regulating plug valve according to claim 7, characterized in that, The flow regulating plate is located in the rear cover cavity and is closely attached to the valve body. The flow regulating plate has a through hole in the middle that communicates with the valve core outlet hole. The gas flowing out of the valve core outlet hole enters the rear cover cavity through the through hole, and then is diverted to the main burner inlet hole and the secondary burner inlet hole through the flow regulating hole.

9. An asynchronous electrically controlled two-stage regulating plug valve according to claim 5, characterized in that, A sealing gasket is provided between the flow regulating plate and the valve body, and the sealing gasket has a through hole for the flow regulating hole to communicate with the main fire air inlet and the secondary fire air inlet.

10. An asynchronous electrically controlled two-stage regulating plug valve according to claim 9, characterized in that, A first spring is provided between the flow regulating plate and the rear cover, and the flow regulating plate and the sealing gasket are pressed tightly onto the valve body by the first spring.

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