A control structure for a pressure regulating valve

Abstract

This utility model relates to a control structure for a pressure regulating valve. The pressure regulating valve includes a valve seat with an air outlet channel inside and an opening on the valve seat communicating with the air outlet channel. The control structure includes a diaphragm, an adjusting spring, a lifting component, a transmission component, a knob, a housing, a top cover, and a limiting component. The diaphragm is located at the bottom of the opening, and the housing is connected to the opening of the valve seat. The knob is rotatably mounted inside the housing. The transmission component is located inside the knob and rotatably connected to it. The lifting component is rotatably connected to the transmission component. One end of the adjusting spring abuts against the lifting component, and the other end abuts against the diaphragm. The limiting component restricts the vertical movement of the knob. This utility model achieves linear and precise control of the diaphragm pressure by adjusting the spring compression through a screw-driven lifting component driven by the knob. The knob rotation itself no longer generates axial displacement but is instead converted into axial displacement of the lifting component, thus improving the user experience.

Description

Technical Field

[0001] This utility model relates to the field of pressure regulating valve technology, and specifically to a control structure for a pressure regulating valve. Background Technology

[0002] As a core component of portable cooking equipment, the stability of the outdoor gas stove's performance and the ease of operation directly affect the user experience. Among them, the pressure regulator valve is a key component for controlling the gas output pressure. Its function is to adjust the output pressure of the high-pressure gas source to a stable low pressure suitable for combustion, thereby ensuring that the flame size is adjustable and combustion is complete.

[0003] In existing technologies, common outdoor gas stove pressure regulators typically employ a mechanical pressure regulation structure, adjusting the gas output by rotating a knob to change the diaphragm's curvature. However, this design has a significant drawback: when the user rotates the knob to adjust the flame size, the knob often moves axially up and down. This problem stems from an improperly designed mechanical linkage between the diaphragm and the knob, inevitably leading to axial displacement during rotation.

[0004] This up-and-down movement of the knob can cause the following problems:

[0005] Poor user experience: Users need to adapt to both rotating and pressing actions, especially in outdoor environments, such as when operating with gloves or in low-temperature conditions, the adjustment accuracy and convenience will be greatly reduced.

[0006] While existing technologies offer some improvements, such as gear transmission or separate knob structures, these designs often increase structural complexity and are detrimental to the lightweight and reliability requirements of outdoor equipment. Therefore, a novel pressure-regulating valve structure is urgently needed that can completely eliminate axial displacement during knob rotation while maintaining adjustment accuracy, thereby improving the overall performance and user experience of outdoor gas stoves. Utility Model Content

[0007] The purpose of this invention is to provide a control structure for a pressure regulating valve to solve the problem of axial displacement when the knob of an existing pressure regulating valve is rotated.

[0008] To achieve the above objectives, the technical solution of this utility model is as follows:

[0009] A control structure for a pressure regulating valve includes a valve seat with an air outlet channel inside and an opening communicating with the air outlet channel. The control structure includes a diaphragm, an adjusting spring, a lifting component, a transmission component, a knob, a housing, a top cover, and a limiting component. The diaphragm is disposed at the bottom of the opening, the housing is connected to the opening of the valve seat, and the knob is rotatably disposed within the housing. The transmission component is disposed within the knob and rotatably connected to it. The lifting component is rotatably connected to the transmission component. One end of the adjusting spring abuts against the lifting component, and the other end abuts against the diaphragm. The limiting component restricts the vertical movement of the knob.

[0010] Preferably, the limiting component includes a top cover and protrusions disposed on the inner wall of the outer casing and the outer wall of the knob, wherein the protrusions on the outer wall of the knob are located between the top cover and the protrusions on the inner wall of the outer casing.

[0011] Preferably, the outer casing is threadedly connected to the valve seat, the top cover is threadedly connected to the outer casing, the top cover is disposed on the top of the outer casing, and the top of the knob extends through the top cover.

[0012] Preferably, the inner wall of the knob and the outer wall of the transmission component are respectively provided with internal threads and external threads.

[0013] Preferably, the transmission component and the lifting component are respectively provided with internal threads and external threads.

[0014] Preferably, a first baffle is provided between the lifting component and the adjusting spring.

[0015] Preferably, a second baffle is provided between the diaphragm and the adjusting spring, and a surrounding plate is provided on the second baffle, with the bottom of the adjusting spring located inside the surrounding plate.

[0016] Compared with the prior art, the control structure of the pressure regulating valve of this application has the following advantages:

[0017] This invention uses a knob to drive a threaded lifting component to adjust the spring compression, thereby achieving linear and precise control of the diaphragm pressure. The knob rotation itself no longer generates axial displacement, but is converted into axial displacement of the lifting component, thus improving the user experience.

[0018] The outer shell, valve seat, and top cover are connected by threads, which facilitates quick disassembly and maintenance; the split design of the transmission components, lifting components, and spring baffle structure reduces the replacement cost when a single component is damaged.

[0019] Baffles and surrounds are installed at both ends of the spring to prevent uneven wear and improve the uniformity of pressure transmission. Attached Figure Description

[0020] Figure 1A schematic diagram of the control structure of a pressure regulating valve provided in an embodiment of this utility model;

[0021] Figure 2 A cross-sectional schematic diagram of the control structure of a pressure regulating valve provided in an embodiment of this utility model;

[0022] Figure 3 A schematic diagram of the valve seat provided in an embodiment of this utility model;

[0023] Figure 4 A schematic diagram of the lifting component, the first baffle, the adjusting spring, and the second baffle provided in the embodiment of this utility model. Detailed Implementation

[0024] The following detailed description illustrates the specific implementation methods:

[0025] The reference numerals in the accompanying drawings include: valve seat 1, air outlet passage 2, opening 3, diaphragm 4, adjusting spring 5, lifting component 6, transmission component 7, knob 8, outer shell 9, protrusion 10, first baffle 11, second baffle 12, surrounding plate 13, and top cover 14.

[0026] As attached Figure 1-4 As shown in the figure, this embodiment illustrates a control structure for a pressure regulating valve. The pressure regulating valve includes a valve seat 1, an air outlet channel 2 is provided inside the valve seat 1, and an opening 3 is provided on the valve seat 1, which communicates with the air outlet channel 2. The control structure includes a diaphragm 4, an adjusting spring 5, a lifting component 6, a transmission component 7, a knob 8, a housing 9, a top cover 14, and a limiting component. The diaphragm 4 is disposed at the bottom of the opening 3, and the housing 9 is connected to the opening 3 of the valve seat 1. The knob 8 is rotatably disposed inside the housing 9. The transmission component 7 is disposed inside the knob 8 and rotatably connected to the knob 8. The lifting component 6 is rotatably connected to the transmission component 7. One end of the adjusting spring 5 abuts against the lifting component 6, and the other end abuts against the diaphragm 4. The limiting component is used to restrict the vertical movement of the knob 8.

[0027] Specifically, the diaphragm 4 is made of elastic rubber or silicone material, and is a thin, circular sheet that covers the bottom of the opening 3. It is used to sense gas pressure and push the regulating spring 5. The housing 9 is made of metal or high-strength plastic and is fixed to the opening 3 of the valve seat 1 by a threaded connection. The top cover 14 is also installed on the top of the housing 9 by a threaded connection, and is used to close the housing 9 and fix the knob 8.

[0028] This embodiment provides a control structure for a pressure regulating valve. By optimizing the cooperation between the knob 8, the transmission component 7, and the lifting component 6, and combining it with the design of the limit component, the rotation of the knob 8 no longer generates axial displacement itself, but is converted into axial displacement of the lifting component 6, thereby improving the user experience.

[0029] The limiting component includes a top cover 14 and a protrusion 10 disposed on the inner wall of the outer casing 9 and the outer wall of the knob 8. The protrusion 10 on the outer wall of the knob 8 is located between the top cover 14 and the protrusion 10 on the inner wall of the outer casing 9, forming an upper and lower limit to prevent the knob 8 from rotating excessively or moving axially.

[0030] The outer casing 9 is threadedly connected to the valve seat 1, and the top cover 14 is threadedly connected to the outer casing 9. The top cover 14 is located on the top of the outer casing 9, and the top of the knob 8 extends through the top cover 14. The inner wall of the knob 8 and the outer wall of the transmission component 7 are respectively provided with internal threads and external threads. The transmission component 7 and the lifting component 6 are respectively provided with internal threads and external threads.

[0031] Specifically, the knob 8 has a cylindrical structure with its top extending out of the top cover 14 for manual rotation, and its inner wall has internal threads. The transmission component 7 has a screw structure with external threads on its outer wall that match the internal threads of the knob 8, so that the rotational movement of the knob 8 is converted into the axial movement of the transmission component 7. The lifting component 6 is connected to the transmission component 7 by threads and can be made of metal or engineering plastic. Its top has a first baffle 11 for supporting the adjusting spring 5.

[0032] A first baffle 11 is provided between the lifting component 6 and the adjusting spring 5 to increase the contact area between them. A second baffle 12 is provided between the diaphragm 4 and the adjusting spring 5, and a surrounding plate 13 is provided on the second baffle 12, with the bottom of the adjusting spring 5 located inside the surrounding plate 13. The adjusting spring 5 can be made of stainless steel, which has high elasticity and corrosion resistance. One end of the adjusting spring 5 abuts against the first baffle 11 of the lifting component 6, and the other end abuts against the diaphragm 4. To improve stability, a second baffle 12 is provided between the diaphragm 4 and the adjusting spring 5, and an annular surrounding plate 13 is provided on the second baffle 12. The bottom of the adjusting spring 5 is embedded in the surrounding plate 13 to prevent the adjusting spring 5 from shifting.

[0033] Working principle: When the knob 8 is rotated, the transmission component 7 moves axially under the action of the thread, driving the lifting component 6 to move up and down, thereby compressing or releasing the adjusting spring 5. The elastic force of the adjusting spring 5 acts on the diaphragm 4, changing the deformation of the diaphragm 4, thereby adjusting the air pressure in the air outlet channel 2 and realizing the regulation of the output pressure.

[0034] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A control structure for a pressure regulating valve, characterized in that: The pressure regulating valve includes a valve seat (1), an air outlet channel (2) is provided inside the valve seat (1), and an opening (3) is provided on the valve seat (1). The opening (3) is connected to the air outlet channel (2). The control structure includes a diaphragm (4), an adjusting spring (5), a lifting component (6), a transmission component (7), a knob (8), a housing (9), a top cover (14), and a limiting component. The diaphragm (4) is located at the bottom of the opening (3). The housing (9) is connected to the opening (3) of the valve seat (1). The knob (8) is rotatably located inside the housing (9). The transmission component (7) is located inside the knob (8) and is rotatably connected to the knob (8). The lifting component (6) is rotatably connected to the transmission component (7). One end of the adjusting spring (5) abuts against the lifting component (6), and the other end abuts against the diaphragm (4). The limiting component is used to limit the vertical movement of the knob (8).

2. The control structure of a pressure regulating valve according to claim 1, characterized in that: The limiting component includes a top cover (14) and a protrusion (10) disposed on the inner wall of the outer shell (9) and the outer wall of the knob (8). The protrusion (10) on the outer wall of the knob (8) is located between the top cover (14) and the protrusion (10) on the inner wall of the outer shell (9).

3. The control structure of a pressure regulating valve according to claim 2, characterized in that: The outer shell (9) is threadedly connected to the valve seat (1), the top cover (14) is threadedly connected to the outer shell (9), the top cover (14) is located on the top of the outer shell (9), and the top of the knob (8) extends through the top cover (14).

4. The control structure of a pressure regulating valve according to claim 1, characterized in that: The inner wall of the knob (8) and the outer wall of the transmission component (7) are respectively provided with internal threads and external threads.

5. The control structure of a pressure regulating valve according to claim 4, characterized in that: The transmission component (7) and the lifting component (6) are respectively provided with internal threads and external threads.

6. The control structure of a pressure regulating valve according to claim 1, characterized in that: A first baffle (11) is provided between the lifting component (6) and the adjusting spring (5).

7. The control structure of a pressure regulating valve according to claim 6, characterized in that: A second baffle (12) is provided between the diaphragm (4) and the adjusting spring (5), and a surrounding plate (13) is provided on the second baffle (12), with the bottom of the adjusting spring (5) located inside the surrounding plate (13).

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