Control valve for fuel gas pizza oven

Abstract

The utility model discloses a control valve for a fuel gas pizza oven. The valve body is internally provided with an air inlet channel and an air outlet channel which are communicated with a mounting cavity, the valve core is rotatably arranged in the mounting cavity, the outer end of the valve core is provided with a control end outside the valve body, the valve core is provided with a first through hole, a second through hole and a third through hole, and the control end drives the valve core to rotate in the rotary mounting cavity, so that the air inlet channel and the air outlet channel are disconnected; or the air inlet channel and the air outlet channel are communicated through at least one of the first through hole, the second through hole and the third through hole. The air inlet channel and the air outlet channel are communicated through any one of the first through hole, the second through hole and the third through hole, so that the control valve has three clear fire gears, the added fire gears are convenient for a user to select, and the combustion of the pizza oven is stabilized at a preset temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pizza ovens, in particular to a control valve for a gas pizza oven. Background Art

[0002] Currently, gas pizza ovens use control valves to regulate gas flow, thereby controlling the burner's power. However, existing pizza oven control valves can only adjust between high and low heat, with the high and low heat positions being relatively clear. The remaining power levels can only be adjusted based on user experience, making it impossible to maintain a constant burner temperature. Utility Model Content

[0003] The purpose of the utility model is to provide a control valve for a gas pizza oven with at least three gears.

[0004] The purpose of this utility model is achieved like this.

[0005] A control valve for a gas pizza oven includes a valve body and a valve core. The valve body is provided with an air inlet channel and an air outlet channel connected to an installation cavity. The valve core is rotatably arranged in the installation cavity. The outer end of the valve core is provided with a control end outside the valve body. The valve core is provided with a first through hole, a second through hole and a third through hole. The control end drives the valve core to rotate in the rotating installation cavity, so that the air inlet channel and the air outlet channel are disconnected, or the air inlet channel and the air outlet channel are connected through at least one of the first through hole, the second through hole and the third through hole.

[0006] The air inlet channel and the air outlet channel of the utility model are connected through any one of the first through hole, the second through hole and the third through hole, so that the control valve has three clear fire power gears. The additional fire power gears are convenient for users to choose, so that the pizza oven can burn stably at the preset temperature.

[0007] Furthermore, an air passage is provided in the valve core, and an air inlet hole is provided in the valve core, and the air passage and the air inlet passage are kept in communication through the air inlet hole.

[0008] The valve core and the air inlet passage are continuously connected, and the air supply is stable and not disturbed by the rotation of the valve core.

[0009] Furthermore, the front end of the valve core is provided with the air inlet hole, a gap is left between the inner end surface of the installation cavity and the front end of the valve core, and one end of the air inlet channel is connected to the installation cavity in an area corresponding to the gap.

[0010] The connecting structure between the valve core and the air inlet passage is simple and reasonable, ensuring that the air inlet part of the valve body is stable and reliable.

[0011] Furthermore, the first through hole, the second through hole and the third through hole are spaced apart along the circumference of the valve core, the diameter of the first through hole is larger than the diameter of the second through hole, and the diameter of the second through hole is larger than the diameter of the third through hole.

[0012] The first through hole, the second through hole and the third through hole each control the flow of gas therethrough, and the maximum gas flow rates are different.

[0013] Furthermore, the included angle between the first through hole and the second through hole is 90°, and the included angle between the second through hole and the third through hole is 45°.

[0014] The first through hole, the second through hole and the third through hole are reasonably arranged.

[0015] Furthermore, the centers of the first through hole, the second through hole and the third through hole are all on the same cross section of the valve core, and one end of the air outlet channel is connected to the installation cavity in the area corresponding to the first through hole, the second through hole and the third through hole.

[0016] The first through hole, the second through hole and the third through hole are easily communicated with the air outlet channel.

[0017] Furthermore, the inner side surface of the installation cavity is an inner conical surface, the outer periphery of the front of the valve core is provided with an outer conical surface, the front of the valve core is inserted into the installation cavity, the inner conical surface and the outer conical surface are sealed together, and the first through hole, the second through hole and the third through hole are all provided with an outer conical surface.

[0018] The rotary seal structure of the valve core and the installation cavity is simple and reasonable, and the operation is stable and reliable.

[0019] Furthermore, a supplementary air outlet channel connected to the mounting cavity is provided in the valve body, one end of the supplementary air outlet channel is connected to the mounting cavity, and the other end of the supplementary air outlet channel is connected to the air outlet channel. A regulating valve core is provided on the supplementary air outlet channel, and the regulating valve core is used to adjust the gas flow of the supplementary air outlet channel. The control end drives the valve core to rotate in the rotating mounting cavity, so that the air inlet channel and the supplementary air outlet channel are disconnected, or the air inlet channel and the supplementary air outlet channel are connected through at least one of the first through hole, the second through hole and the third through hole.

[0020] The design of the supplementary air outlet channel increases the gas flow rate through the air outlet channel, making the flame more intense, thereby achieving a better cooking effect. The supplementary air outlet channel and the air outlet channel are coordinated, and the control valve has more gear adjustments.

[0021] Furthermore, the angle between the supplementary air outlet channel and the air outlet channel at the communicating portion of the installation cavity is 90°.

[0022] The design of the supplementary air outlet channel and the air outlet channel cooperates with two hole positions among the first through hole, the second through hole and the third through hole to realize that the supplementary air outlet channel and the air outlet channel are connected to the air inlet channel at the same time.

[0023] The air inlet and outlet channels of the present invention are connected through any of the first, second, and third through-holes, allowing the control valve to have three distinct power levels. These additional power levels facilitate user selection, allowing the pizza oven to maintain stable combustion at a preset temperature. The supplementary outlet channel design increases the gas flow rate through the outlet channel, making the flame more intense and achieving a better cooking effect. The supplementary outlet channel and outlet channel cooperate to provide the control valve with more adjustable levels. The supplementary outlet channel and outlet channel design, in conjunction with two of the first, second, and third through-holes, allows the supplementary outlet channel and outlet channel to simultaneously connect to the air inlet channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of embodiment 1.

[0025] Figure 2 This is a schematic cross-sectional view of the first embodiment.

[0026] Figure 3 It is a schematic diagram of the local cross-sectional structure of Example 1.

[0027] Figure 4 This is a structural diagram of the valve core in Example 1. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Example 1, see Figure 1-4 As shown, a control valve for a gas pizza oven includes a valve body 1 and a valve core 2.

[0030] The valve body 1 is provided with an air inlet channel 3, an air outlet channel 4 and a supplementary air outlet channel 5 connected to the installation cavity 10. The inner side surface of the installation cavity 10 is an inner conical surface, that is, the installation cavity 10 is a conical cavity. The air inlet channel 3 is placed at the bottom of the installation cavity 10, and the air inlet channel 3 is connected to the installation cavity 10 near the inner end. The air outlet channel 4 is placed at the top of the installation cavity 10, and the air outlet channel 4 is connected to the middle of the installation cavity 10. The supplementary air outlet channel 5 is L-shaped, and the top end of the supplementary air outlet channel 5 is connected to the air outlet channel 4, and the bottom end of the supplementary air outlet channel 5 is connected to the side of the installation cavity 10. The valve body 1 is provided with a regulating valve core 51 at the bend of the supplementary air outlet channel 5. The regulating valve core 51 is used to adjust the gas flow of the supplementary air outlet channel 5. The regulating valve core 51 and the valve body 1 are threadedly connected and sealed. The regulating valve core 51 controls the cross-sectional size of the supplementary air outlet channel 5 by screwing its front in or out, thereby controlling the gas flow. Preferably, the connecting portions of the air inlet channel 3 and the supplementary air outlet channel 5 with the mounting cavity 10 are on the same cross section of the mounting cavity 10. The angle between the connecting portions of the supplementary air outlet channel 5 and the air outlet channel 4 in the mounting cavity 10 is 90°.

[0031] The front periphery of the valve core 2 is provided with an outer conical surface 20, which is provided with a first through-hole 21, a second through-hole 22, and a third through-hole 23. The valve core 2 is hollow, forming an air passage 24. An air inlet 25 is provided at the front end of the valve core 2. The air inlet 25, the first through-hole 21, the second through-hole 22, and the third through-hole 23 are all connected to the air passage 24. A control terminal 26 is provided at the outer end of the valve core 2, outside the valve body 1.

[0032] The first through hole 21, the second through hole 22, and the third through hole 23 are spaced apart along the circumference of the valve core 2. The diameter of the first through hole 21 is larger than that of the second through hole 22, and the diameter of the second through hole 22 is larger than that of the third through hole 23. Specifically, the centers of the first through hole 21, the second through hole 22, and the third through hole 23 are all located on the same cross-section of the valve core 2. The angle b between the first through hole 21 and the second through hole 22 is 90°, and the angle a between the second through hole 22 and the third through hole 23 is 45°.

[0033] The front portion of the valve core 2 is inserted into the mounting cavity 10, with the inner conical surface and outer conical surface 20 forming a sealed engagement. A gap 11 is provided between the inner end surface of the mounting cavity 10 and the front end of the valve core 2. One end of the inlet channel 3 communicates with the mounting cavity 10 in the area corresponding to the gap 11. Specifically, the inlet channel 3 maintains a connection to the outlet channel 24 via the inlet hole 25. One end of the outlet channel 4 communicates with the mounting cavity 10 in the area corresponding to the first through hole 21, the second through hole 22, and the third through hole 23.

[0034] The control end 26 drives the valve core 2 to rotate within the rotating mounting chamber 10, thereby disconnecting the air inlet channel 3 from the air outlet channel 4 or connecting the air inlet channel 3 and the air outlet channel 4 through at least one of the first through hole 21, the second through hole 22, and the third through hole 23. Furthermore, the air inlet channel 3 and the supplementary air outlet channel 5 are disconnected or connected through at least one of the first through hole 21, the second through hole 22, and the third through hole 23.

[0035] If the regulating valve core 51 is disconnected, the supplementary gas outlet channel 5 is activated. The valve core 2 rotates counterclockwise, and the gas outlet channel 4 connects to the gas channel 24 via the first through-hole 21, the second through-hole 22, and the third through-hole 23. The inlet channel 3 and the gas outlet channel 4 are fully connected through the first through-hole 21, and the control valve controls the gas burner to maximum power (100% power). The inlet channel 3 and the gas outlet channel 4 are fully connected through the second through-hole 22, and the control valve controls the gas burner to reduce power (75% power). The inlet channel 3 and the gas outlet channel 4 are fully connected through the third through-hole 23, and the control valve controls the gas burner to reduce power (40% power).

[0036] If the regulating valve core 51 opens the supplementary air outlet channel 5. Among them, the air inlet channel 3 and the air outlet channel 4 are fully connected through the first through hole 21, and the supplementary air outlet channel 5 is disconnected from the air inlet channel 3. The air inlet channel 3 and the air outlet channel 4 are fully connected through the second through hole 22, and the supplementary air outlet channel 5 and the air inlet channel 3 are fully connected through the first through hole 21, and the firepower reaches the maximum. The supplementary air outlet channel 5 and the air inlet channel 3 are fully connected through the second through hole 22, and the air inlet channel 3 and the air outlet channel 4 are disconnected. The air inlet channel 3 and the air outlet channel 4 are fully connected through the third through hole 23, and the supplementary air outlet channel 5 is disconnected from the air inlet channel 3. The control valve realizes multi-gear adjustment of the gas pizza oven in this way.

[0037] As used in this utility model, the terms: first, second, etc. do not indicate any order, quantity or importance, but are only used to distinguish.

[0038] As used in this utility model, the terms "a", "an", etc. do not indicate a limitation of quantity, but rather indicate the presence of at least one of the mentioned objects.

[0039] For example, terms indicating orientation or position used in this utility model, such as front end, rear end, top, bottom, side, longitudinal, transverse, middle, center, outside, inside, horizontal, vertical, left, right, above, below, etc., are intended to reflect relative positions rather than absolute positions.

[0040] As used in this invention, terms such as "substantially," "overall," "approximately," and "similar" are qualifiers that indicate that a characteristic exists but a certain deviation is permitted. The amount of the permitted deviation may vary depending on the specific context.

Claims

1. A control valve for a gas pizza oven, comprising a valve body and a valve core, wherein the valve body is provided with an air inlet channel and an air outlet channel communicating with an installation cavity, the valve core is rotatably arranged in the installation cavity, and the outer end of the valve core is provided with a control end outside the valve body, wherein the valve body is characterized in that: A first through hole, a second through hole and a third through hole are provided on the valve core. The control end drives the valve core to rotate in the rotating mounting cavity, so that the air inlet channel and the air outlet channel are disconnected, or the air inlet channel and the air outlet channel are connected through at least one of the first through hole, the second through hole and the third through hole.

2. The control valve for a gas pizza oven according to claim 1, characterized in that: An air passage is provided in the valve core, and an air inlet hole is provided in the valve core. The air passage and the air inlet passage are kept in communication through the air inlet hole.

3. The control valve for a gas pizza oven according to claim 2, characterized in that: The front end of the valve core is provided with the air inlet hole, a gap is left between the inner end surface of the installation cavity and the front end of the valve core, and one end of the air inlet channel is connected to the installation cavity in an area corresponding to the gap.

4. The control valve for a gas pizza oven according to claim 1, characterized in that: The first through hole, the second through hole and the third through hole are spaced apart along the circumference of the valve core. The diameter of the first through hole is larger than the diameter of the second through hole, and the diameter of the second through hole is larger than the diameter of the third through hole.

5. The control valve for a gas pizza oven according to claim 4, characterized in that: The included angle between the first through hole and the second through hole is 90°, and the included angle between the second through hole and the third through hole is 45°.

6. The control valve for a gas pizza oven according to claim 1, characterized in that: The centers of the first through hole, the second through hole and the third through hole are all on the same cross section of the valve core, and one end of the air outlet channel is connected to the installation cavity in the area corresponding to the first through hole, the second through hole and the third through hole.

7. The control valve for a gas pizza oven according to any one of claims 1 to 6, characterized in that: The inner side surface of the installation cavity is an inner conical surface, the outer periphery of the front of the valve core is provided with an outer conical surface, the front of the valve core is inserted into the installation cavity, the inner conical surface and the outer conical surface are sealed together, and the first through hole, the second through hole and the third through hole are all provided on the outer conical surface.

8. The control valve for a gas pizza oven according to claim 1, characterized in that: A supplementary air outlet channel connected to the mounting cavity is provided in the valve body, one end of the supplementary air outlet channel is connected to the mounting cavity, and the other end of the supplementary air outlet channel is connected to the air outlet channel. A regulating valve core is provided on the supplementary air outlet channel, and the regulating valve core is used to adjust the gas flow rate of the supplementary air outlet channel. The control end drives the valve core to rotate in the rotating mounting cavity, so that the air inlet channel and the supplementary air outlet channel are disconnected, or the air inlet channel and the supplementary air outlet channel are connected through at least one of the first through hole, the second through hole and the third through hole.

9. The control valve for a gas pizza oven according to claim 8, characterized in that: The angle between the supplementary air outlet channel and the air outlet channel at the connecting portion of the installation cavity is 90°.

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