A gas valve regulating assembly and a gas valve

Abstract

This utility model relates to a gas valve regulating assembly and a gas valve, including a fixed frame, a valve stem, and a limiting block. The valve stem can drive the limiting block to move circumferentially relative to the fixed frame. The fixed frame is provided with a limiting protrusion extending downward. The limiting block is provided with a number of protruding teeth distributed circumferentially. Adjacent protruding teeth form a limiting recess with an upward opening corresponding to the limiting protrusion. The circumferential movement of the limiting block relative to the fixed frame causes the limiting protrusion and the protruding teeth to slide in cooperation. The limiting protrusion and different limiting recesses are connected vertically to fix the relative position of the limiting block and the fixed frame circumferentially. The cooperation between the limiting protrusion and the limiting recess allows the valve stem to rotate according to a preset amplitude, thereby achieving the effect of precisely adjusting the firepower.

Description

Technical Field

[0001] This utility model relates to the technical field of gas valves, specifically to a gas valve regulating assembly and a gas valve. Background Technology

[0002] Chinese patent document CN111946850A, published in 2020, discloses a stopcock valve and a gas stove. Specifically, it discloses a valve body with a first cavity; a valve cover connected to the valve body; a valve core rotatably connected to the first cavity; a valve stem comprising a pressing part and an anti-rotation part from top to bottom, the pressing part having an arcuate side and a clearance side; the anti-rotation part preventing rotation of the valve core and engaging vertically; a reset mechanism between the anti-rotation part and the valve core; a child lock structure including a right-hand limit block, a left-hand limit block, and an end-point limit block, the limiting depth of the left-hand limit block not exceeding the pressing stroke of the valve stem; and a micro switch mounted on the valve cover, the rotational movement path of the arcuate side intersecting with the micro switch. The gas valve in the aforementioned patent document only allows for stepless adjustment, making it difficult for users to precisely adjust the flame intensity.

[0003] Therefore, further improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a gas valve regulating assembly and a gas valve. The limiting protrusion and the limiting recess cooperate to allow the valve stem to rotate according to a preset range, thereby achieving the effect of precise adjustment of the firepower. At the same time, the regulating assembly can be connected and fixed to the valve body as a whole, and the valve body does not need to be modified in a complicated way, so that the regulating assembly has good adaptability.

[0005] The purpose of this utility model is achieved as follows:

[0006] A gas valve regulating assembly includes a fixed frame, a valve stem, and a limiting block. The valve stem can drive the limiting block to move circumferentially relative to the fixed frame. The fixed frame has a limiting protrusion extending downward, and the limiting block has a plurality of protruding teeth distributed circumferentially. Adjacent protruding teeth form a limiting recess with an upward opening corresponding to the limiting protrusion. The circumferential movement of the limiting block relative to the fixed frame causes the limiting protrusion and the protruding teeth to slide in engagement. The limiting protrusion and different limiting recesses are vertically connected and engaged to fix the relative position of the limiting block and the fixed frame circumferentially.

[0007] As a specific embodiment, the outer side of the limiting protrusion is spherical, the height of the protruding tooth decreases from the middle to both sides in the circumferential direction, the protruding tooth is inclined relative to the two sides in the circumferential direction, and the width of the limiting recess is adapted to the width of the limiting protrusion.

[0008] As a specific embodiment, the fixing frame has a plurality of limiting protrusions distributed on it, and each limiting protrusion has the same shape and size.

[0009] As a specific solution, the limiting block is provided with a D-shaped hole, and the cross-sectional shape of the valve stem at the position corresponding to the connection with the limiting block is adapted to the shape of the D-shaped hole.

[0010] As a specific solution, the limiting block is provided with a flanged part at the position corresponding to the periphery of the D-shaped hole, and the flanged part extends vertically and fits tightly with the outer side of the valve stem.

[0011] As a specific embodiment, a return spring is connected to the lower side of the limiting block. When the limiting protrusion and the toothed part slide together, the limiting block compresses the return spring downward; when the limiting protrusion and the limiting recess are connected together, the return spring pushes the limiting block upward.

[0012] As a specific embodiment, a support block is provided below the limiting block, the support block is fixedly positioned with the valve stem, and the upper and lower sides of the reset spring abut against the limiting block and the support block respectively.

[0013] As a specific embodiment, the valve stem is provided with a limiting step, and the supporting block is sleeved on the outside of the valve stem and abuts against the limiting step downwards.

[0014] As a specific embodiment, the support block is provided with a limiting bend, and the lower section of the return spring is sleeved on the outside of the limiting bend.

[0015] To improve the adaptability of the regulating assembly, this utility model also discloses a gas valve, including a valve body, on which the above-mentioned gas valve regulating assembly is provided, a lower connecting ear is provided on the valve body, and an upper connecting ear corresponding to the lower connecting ear is provided on the fixing bracket. The upper connecting ear and the lower connecting ear are connected and fixed by a locking structure.

[0016] The beneficial effects of this utility model are:

[0017] The matching of the limiting protrusion and the limiting recess allows the valve stem to rotate according to a preset range, thereby achieving precise adjustment of the firepower. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of an embodiment of the present utility model. Figure 1 .

[0019] Figure 2 This is a cross-sectional view of an embodiment of the present utility model. Figure 2 .

[0020] Figure 3 This is an exploded view of an embodiment of the present utility model. Figure 1 .

[0021] Figure 4 This is an exploded view of an embodiment of the present utility model. Figure 2 .

[0022] Figure 5 This is an exploded view of an embodiment of the present utility model. Figure 3 .

[0023] Figure 6 This is a structural schematic diagram of the fixing frame according to an embodiment of the present utility model.

[0024] Figure 7 This is a schematic diagram of the structure of the limiting block in an embodiment of the present utility model.

[0025] Figure 8 This is an enlarged view of embodiment A of the present utility model.

[0026] Figure 9 This is an enlarged view of embodiment B of this utility model. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] See Figures 1-9 This gas valve regulating assembly includes a fixed frame 1, a valve stem 2, and a limiting block 3. The valve stem 2 can drive the limiting block 3 to move circumferentially relative to the fixed frame 1. The fixed frame 1 is provided with a limiting protrusion 11 extending downward. The limiting block 3 is provided with a number of protruding teeth 31 distributed circumferentially. Adjacent protruding teeth 31 form a limiting recess 32 with an upward opening and corresponding to the limiting protrusion 11. The circumferential movement of the limiting block 3 relative to the fixed frame 1 causes the limiting protrusion 11 and the protruding teeth 31 to slide in cooperation. The limiting protrusion 11 and different limiting recesses 32 are connected and cooperated vertically to fix the relative position of the limiting block 3 and the fixed frame 1 in the circumferential direction. Since the limiting protrusion 11 is connected and cooperated vertically with the protruding teeth 31 and the limiting recesses 32, the vertical space of the equipment can be better utilized, and the overall width of the regulating assembly can be reduced relatively.

[0029] The limiting protrusion 11 and the limiting recess 32 cooperate to enable the valve stem 2 to rotate according to a preset range, thereby achieving the effect of precisely adjusting the firepower.

[0030] Furthermore, the outer side of the limiting protrusion 11 is spherical, the height of the toothed part 31 decreases from the middle to both sides in the circumferential direction, the toothed part 31 is inclined relative to the two sides in the circumferential direction, the width of the limiting recess 32 is adapted to the width of the limiting protrusion 11, and the limiting protrusion 11 can better slide and cooperate with the toothed part 31 under the guidance of the inclined surfaces on both sides of the toothed part 31, thereby improving the smoothness of the adjustment process.

[0031] Furthermore, the fixing frame 1 has a plurality of limiting protrusions 11 distributed on it. Each limiting protrusion 11 has the same shape and size, which can improve the stability of the relative position between the limiting block 3 and the fixing frame 1 after the limiting protrusion 11 and the limiting recess 32 are connected and engaged, and further reduce the chance of accidental displacement between the limiting block 3 and the fixing frame 1.

[0032] Furthermore, the limiting block 3 is provided with a D-shaped hole 33, and the cross-sectional shape of the valve stem 2 corresponding to the position where it connects with the limiting block 3 is adapted to the shape of the D-shaped hole 33. The positioning structure between the limiting block 3 and the valve stem 2 is simple, and no additional positioning components are required, which simplifies the installation and connection structure of the two.

[0033] Furthermore, a flange 34 is provided on the limiting block 3 at the position corresponding to the periphery of the D-shaped hole 33. The flange 34 extends vertically and fits tightly with the outer side of the valve stem 2. The flange 34 can not only improve the structural strength of the limiting block 3, but also increase the contact area between the limiting block 3 and the valve stem 2, thereby further improving the connection strength between the two.

[0034] Furthermore, a return spring 4 is connected to the lower side of the limiting block 3. When the limiting protrusion 11 and the toothed part 31 slide together, the limiting block 3 compresses the return spring 4 downward. When the limiting protrusion 11 and the limiting recess 32 are connected together, the return spring 4 pushes the limiting block 3 upward. The return spring 4 can automatically connect the limiting protrusion 11 and the limiting recess 32 after they are aligned.

[0035] Furthermore, a support block 5 is provided below the limiting block 3. The support block 5 is fixedly positioned with the valve stem 2. The upper and lower sides of the return spring 4 abut against the limiting block 3 and the support block 5 respectively. The support block 5 can support the return spring 4, so that the return spring 4 can push the limiting block 3 upward better.

[0036] Furthermore, the valve stem 2 is provided with a limiting step 21, and the support block 5 is sleeved on the outside of the valve stem 2 and abuts against the limiting step 21 downwards, so that the support block 5 will not move downwards after being subjected to the pressure of the return spring 4, ensuring that the return spring 4 can smoothly push the limiting block 3 upwards.

[0037] Furthermore, the support block 5 is provided with a limiting bending part 51, and the lower section of the return spring 4 is sleeved on the outside of the limiting bending part 51. The limiting bending part 51 can improve the structural strength of the support block 5, so that the support block 5 is not easily deformed after being subjected to the pressure of the return spring 4. At the same time, the limiting bending part 51 can also limit the return spring 4, so that the return spring 4 does not swing or deviate as much as possible during the extension and contraction process.

[0038] To improve the adaptability of the regulating assembly, this utility model also discloses a gas valve, including a valve body 6, on which the gas valve regulating assembly is provided. The valve body 6 is provided with a lower connecting ear 61, and the fixing bracket 1 is provided with an upper connecting ear 13 corresponding to the lower connecting ear 61. The upper connecting ear 13 and the lower connecting ear 61 are connected and fixed by a locking structure. The valve body 6 does not need to be modified in a complicated way, so that the regulating assembly has better adaptability.

[0039] The above embodiments are merely preferred embodiments of this utility model, and other implementations are also possible. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model, and all such equivalent modifications or substitutions are included within the scope set forth in the claims of this application.

Claims

1. A gas valve regulating assembly, characterized by, The device includes a fixed frame (1), a valve stem (2), and a limiting block (3). The valve stem (2) can drive the limiting block (3) to move circumferentially relative to the fixed frame (1). The fixed frame (1) is provided with a limiting protrusion (11) extending downward. The limiting block (3) is provided with a number of protruding teeth (31) distributed circumferentially. Adjacent protruding teeth (31) form a limiting recess (32) with an upward opening and corresponding to the limiting protrusion (11). The limiting block (3) moves circumferentially relative to the fixed frame (1) so that the limiting protrusion (11) and the protruding teeth (31) slide together. The limiting protrusion (11) and different limiting recesses (32) are connected vertically to fix the relative position of the limiting block (3) and the fixed frame (1) circumferentially.

2. The gas valve regulating assembly of claim 1, wherein: The outer side of the limiting protrusion (11) is spherical, the height of the protruding tooth (31) decreases from the middle to both sides in the circumferential direction, the protruding tooth (31) is inclined relative to the two sides in the circumferential direction, and the width of the limiting recess (32) is adapted to the width of the limiting protrusion (11).

3. The gas valve regulating assembly of claim 1, wherein: The fixing frame (1) has a plurality of limiting protrusions (11) distributed on it, and each limiting protrusion (11) has the same shape and size.

4. The gas valve regulating assembly of claim 1, wherein: The limiting block (3) is provided with a D-shaped hole (33), and the cross-sectional shape of the valve stem (2) corresponding to the position connected to the limiting block (3) is adapted to the shape of the D-shaped hole (33).

5. The gas valve regulating assembly of claim 4, wherein: The limiting block (3) is provided with a flange (34) at the position corresponding to the periphery of the D-shaped hole (33). The flange (34) extends vertically and fits tightly with the outer side of the valve stem (2).

6. The gas valve regulating assembly according to any one of claims 1-5, characterized in that: The lower side of the limiting block (3) is connected to a reset spring (4). When the limiting protrusion (11) and the toothed part (31) slide together, the limiting block (3) compresses the reset spring (4) downward. When the limiting protrusion (11) and the limiting recess (32) are connected together, the reset spring (4) pushes the limiting block (3) upward.

7. The gas valve regulating assembly of claim 6, wherein: The limiting block (3) is provided with a support block (5) below it. The support block (5) is fixedly positioned with the valve stem (2). The upper and lower sides of the reset spring (4) abut against the limiting block (3) and the support block (5) respectively.

8. The gas valve regulating assembly of claim 7, wherein: The valve stem (2) is provided with a limiting step (21), and the supporting block (5) is sleeved on the outside of the valve stem (2) and abuts against the limiting step (21) downwards.

9. The gas valve regulating assembly of claim 7, wherein: The support block (5) is provided with a limiting bending part (51), and the lower section of the reset spring (4) is sleeved on the outside of the limiting bending part (51).

10. A gas valve comprising a valve body (6), characterized in that The valve body (6) is provided with the gas valve regulating assembly according to any one of claims 1-9. The valve body (6) is provided with a lower connecting ear (61). The fixing bracket (1) is provided with an upper connecting ear (13) corresponding to the lower connecting ear (61). The upper connecting ear (13) and the lower connecting ear (61) are connected and fixed by a locking structure.

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