Pressure reducing valve and gas appliance

Abstract

This utility model discloses a pressure reducing valve and a gas appliance. The pressure reducing valve includes: a valve body with an adjustment port and a groove on the side wall of the adjustment port; a limiting buckle connected to the valve body and extending into the adjustment port; and a nameplate detachably mounted in the groove and supported by the limiting buckle. The pressure reducing valve of this utility model, by providing a groove and a limiting buckle on the valve body, enables the detachable installation and removal of the nameplate, facilitating subsequent installation and removal of the nameplate.

Description

Technical Field

[0001] This utility model relates to the field of pressure reducing valve technology, and in particular to a pressure reducing valve and a gas appliance. Background Technology

[0002] A pressure reducing valve is a valve used to reduce the pressure of the incoming gas source from high pressure (e.g., 1.75 MPa) to a low pressure suitable for combustion in downstream gas appliances (e.g., 2.8 kPa for household gas stoves) through an internal mechanism. The pressure reducing valve contains a pressure adjusting spring and a pressure adjusting shrapnel. By rotating the shrapnel relative to the threaded part of the valve body, the compression of the pressure adjusting spring is adjusted, thereby regulating the amount of gas entering the valve body.

[0003] For protection and identification purposes, a nameplate is placed above the pressure regulating spring on the valve body. However, in the existing technology, the nameplate is glued on during installation. On the one hand, the glue may drip onto the inner wall of the valve body and affect the operation of the parts. On the other hand, after the glue solidifies, it is inconvenient to remove the nameplate to adjust the pressure regulating spring. Utility Model Content

[0004] To address at least one problem existing in the prior art, according to one aspect of the present invention, a pressure reducing valve is provided, comprising:

[0005] The valve body is provided with an adjustment port, and the side wall of the adjustment port is provided with a groove;

[0006] A limit buckle is connected to the valve body and extends into the adjustment port;

[0007] The nameplate is detachably snapped into the slot and supported by the limiting buckle.

[0008] In some embodiments, the limiting buckle includes a main body and a support platform disposed on the edge of the main body. The main body is connected to the valve body, and the support platform is used to support the nameplate. The thickness of the main body along the axial direction of the valve body is greater than the thickness of the support platform along the axial direction of the valve body.

[0009] In some embodiments, the width L1 of the support platform ranges from 1 to 2 mm along the radial direction of the adjustment port.

[0010] In some embodiments, the limiting buckle extends radially toward the adjustment port.

[0011] In some embodiments, the length L2 of the limiting buckle extending into the adjustment port is 1 / 4 to 1 / 3 of the diameter of the adjustment port.

[0012] In some embodiments, the limiting buckle is rotatably configured relative to the main body.

[0013] In some embodiments, the limiting buckle and the main body are detachably connected.

[0014] In some embodiments, the limit buckle and the valve body are integrally formed.

[0015] In some embodiments, the depth h of the slot along the radial direction of the adjustment port ranges from 0.3 to 0.5 mm.

[0016] In another aspect, a gas appliance is provided, including the aforementioned pressure reducing valve.

[0017] In summary, the pressure reducing valve and gas appliance provided by this utility model have the following technical effects:

[0018] By setting a slot on the side wall of the adjustment port and setting a limiting buckle on the valve body, the nameplate can be detached and installed, which facilitates the removal of the nameplate later. This allows for the adjustment of the pressure regulating spring installed in the valve body and located below the nameplate. Furthermore, the limiting buckle extends into the adjustment port to block the pressure regulating spring and prevent it from jumping out of the valve body. Compared with the existing technology that uses glue to attach the nameplate, this avoids the risk of glue dripping into the valve body and also avoids the difficulty of later removal caused by the nameplate being fixed to the valve body. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the pressure reducing valve according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 A top view of the pressure reducing valve in the image;

[0021] Figure 3 for Figure 2 A schematic cross-sectional view along the middle AA section;

[0022] Figure 4 for Figure 3 Enlarged view of point I in the middle;

[0023] Figure 5 This is a schematic diagram of the structure of the nameplate installed on the slot according to an embodiment of the present invention.

[0024] Attached image:

[0025] 100-Pressure reducing valve, 10-Valve body, 11-Adjusting port, 12-Slot, 20-Limit buckle, 21-Main body, 22-Support platform, 30-Nameplate, 40-Pressure regulating spring. Detailed Implementation

[0026] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0027] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0029] The present invention will now be described in further detail with reference to the accompanying drawings.

[0030] Please see Figures 1 to 5 The pressure reducing valve 100 provided in this embodiment of the utility model includes a valve body 10, a limit buckle 20, and a nameplate 30.

[0031] The valve body 10 is provided with an adjustment port 11, and a slot 12 is provided on the side wall of the adjustment port 11; the limit buckle 20 is connected to the valve body 10 and extends into the adjustment port 11; the nameplate 30 is detachably installed in the adjustment port 11, is locked in the slot 12, and is supported by the limit buckle 20.

[0032] The aforementioned pressure reducing valve 100, by providing a slot 12 on the side wall of the adjustment port 11 and a limiting buckle 20 on the valve body 10, works together to support the nameplate 30, enabling the nameplate 30 to be detachably installed. This facilitates the removal of the nameplate 30 later, allowing adjustment of the pressure regulating spring 40 installed inside the valve body 10 and located below the nameplate 30. Furthermore, the limiting buckle 20, extending into the adjustment port 11, can block the pressure regulating spring 40, preventing it from jumping out of the valve body 10. Compared to the existing technology that uses glue to bond the nameplate 30, this avoids the risk of glue dripping into the valve body 10 and also avoids the difficulty of later removal caused by the nameplate 30 being fixed to the valve body 10.

[0033] Understandably, the pressure reducing valve 100 in this embodiment also includes a pressure regulating spring, diaphragm, spindle and connecting rod located below the adjusting spring, and the amount of extension and retraction of the pressure regulating spring is adjusted by adjusting the pressure regulating spring 40 to adjust the amount of air intake.

[0034] Please see Figure 4 In one embodiment of this utility model, when the limiting buckle 20 is installed, in order to ensure the structural strength of the limiting buckle 20, the limiting buckle 20 includes a main body 21 and a support platform 22 disposed on the edge of the main body 21. The main body 21 is connected to the valve body 10, and the support platform 22 is used to support the nameplate 30. The thickness of the main body 21 along the axial direction of the valve body 10 is greater than the thickness of the support platform 22 along the axial direction of the valve body 10. Thus, the limiting buckle 20 is configured to include two parts with different thicknesses, and the main body 21 and the support platform 22 can be configured with different shapes or thicknesses. For example, the main body 21 can be configured with a greater thickness along the axial direction of the valve body 10. In the height direction, the main body 21 protrudes from the support platform 22 to ensure that the entire limit buckle 20 has a certain structural strength and avoid the risk of breakage under small external forces. By setting the support platform 22, a gap is avoided between the nameplate 30 and the side wall of the main body 21 after the nameplate 30 is installed in the slot 12. That is, the side of the nameplate 30 near the limit buckle 20 is essentially suspended. Since there is high-pressure gas flowing through the valve body 10, a buzzing sound will be generated if there is a gap between the two. The setting of the support platform 22 avoids the existence of a gap between the nameplate 30 and the limit buckle 20.

[0035] Furthermore, the limiting buckle 20 extends radially into the adjustment port 11, thereby blocking the pressure regulating spring 40 from directly above it.

[0036] When the support platform 22 is set, the width L1 of the support platform 22 is in the range of 1-2mm. This avoids the difficulty of injection molding when the width of the support platform 22 is set too wide, and also avoids the loss of support effect for the nameplate 30 when the width of the support platform 22 is set too narrow.

[0037] In some embodiments, the width L1 of the support platform 22 can be set to a value such as 1mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm or 2.0mm, and is not limited here.

[0038] Further, please refer to Figure 2When the limit buckle 20 extends into the regulating port 11, the extension length L2 of the limit buckle 20 into the regulating port 11 is 1 / 4 to 1 / 3 of the diameter of the regulating port 11. In this way, the length of the entire limit buckle 20 is not too long. When the length of the limit buckle 20 is too long, it not only increases the installation difficulty of the pressure regulating spring 40, but also increases the molding difficulty of the limit buckle 20. At the same time, since the limit buckle 20 is in a suspended state and has a large degree of freedom, it is easy to shake when there is atmospheric pressure impact inside the valve body 10 after supporting the nameplate 30. It also avoids the limit buckle 20 being too short and failing to achieve the limiting effect on the pressure regulating spring 40.

[0039] In some embodiments, the extension length of the limiting buckle 20 into the adjustment port 11 can be set to a value such as 1 / 4, 3 / 10 or 1 / 3 of the diameter of the adjustment port 11, and is not limited here.

[0040] In one embodiment of this utility model, the limiting buckle 20 is integrally formed with the valve body 10 during installation, thereby avoiding subsequent assembly of the two and improving molding efficiency.

[0041] In another embodiment of this utility model, when setting the limit buckle 20, in order to facilitate the installation and adjustment of the pressure regulating spring 40, the limit buckle 20 and the valve body 10 can be detachably connected, for example by plugging or snapping. The limit buckle 20 is provided with a plug-in post, and the valve body is provided with a plug-in groove. The plug-in post is inserted into the plug-in groove. When it is necessary to adjust the elastic force of the pressure regulating spring, the limit buckle 20 can be disassembled. At this time, it is convenient to insert the operating tool into the valve body 10 for adjustment. After the pressure adjustment is completed, the limit buckle 20 can be installed back onto the valve body 10 to restrict the pressure regulating spring 40 and prevent it from falling out of the valve body 10.

[0042] Alternatively, in another embodiment of this utility model, to prevent the limit buckle 20 from being lost after being disassembled relative to the valve body 10, the limit buckle 20 can be rotated relative to the valve body 10. When it is necessary to adjust the pressure regulating spring 40, the limit buckle 20 is rotated to the side of the valve body 10, at which point the tool can easily contact the pressure regulating spring 40. After the adjustment of the pressure regulating spring 40 is completed, the limit buckle 20 is rotated to be directly above the pressure regulating spring 40 and locked with the valve body 10, thereby limiting the pressure regulating spring 40. After the pressure adjustment is completed, the nameplate 30 can be installed.

[0043] Please see Figure 5In one embodiment of this utility model, when setting the slot 12, the depth h of the slot 12 along the radial direction of the adjustment port 11 is in the range of 0.3-0.5mm, so that the depth of the slot 12 is relatively shallow, which makes it easy to insert the nameplate 30 into the slot 12, so as to achieve the effect of installation limit of the nameplate 30, and to facilitate the removal of the nameplate 30 by tools when the pressure regulating spring 40 needs to be rotated later; at the same time, by setting this depth, the risk of the nameplate 30 falling off relative to the valve body 10 can also be avoided.

[0044] In some embodiments, the depth of the card slot 12 can be set to a value such as 0.3mm, 0.4mm or 0.5mm, and is not limited thereto.

[0045] The pressure reducing valve 100 is used as follows: after adjusting the pressure regulating spring 40, apply a slight external force downward to the nameplate 30 so that the nameplate 30 can be inserted into the slot 12 after undergoing a small deformation; when it is necessary to adjust the pressure regulating spring 40, use a tool to cause a small deformation of the nameplate 30 to disengage it from the slot 12, thereby achieving the disassembly of the nameplate 30.

[0046] The aforementioned pressure reducing valve 100, by configuring the limiting buckle 20 as including a main body 21 and a support platform 22 located at the edge of the main body 21, allows for the configuration of the main body 21 and support platform 22 with different shapes or thicknesses. For example, the main body 21 can have a greater thickness, and along the height direction of the valve body 10, the main body 21 protrudes from the support platform 22, so that the entire limiting buckle 20 can have a certain structural strength, avoiding the risk of breakage under small external forces; by setting the width L1 of the support platform 22 in the range of 1-2mm, the support platform 22 is prevented from being... The width setting is too wide, which makes injection molding difficult, and also avoids the loss of support effect for the nameplate 30 when the width of the support platform 22 is too narrow. By setting the depth h of the slot 12 to the range of 0.3-0.5mm, the depth of the slot 12 is set to be shallow, which makes it easy to insert the nameplate 30 into the slot 12, achieving the effect of installation limit for the nameplate 30, and making it easy to remove the nameplate 30 with tools when the pressure regulating spring 40 needs to be rotated later. At the same time, this depth setting also avoids the risk of the nameplate 30 falling off relative to the valve body 10.

[0047] In another embodiment, the present invention also provides a gas appliance, including the aforementioned pressure reducing valve 100.

[0048] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. 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.

Claims

1. A pressure reducing valve (100), characterized in that, include: Valve body (10), the valve body (10) is provided with an adjustment port (11), and the side wall of the adjustment port (11) is provided with a slot (12); A limit buckle (20) is connected to the valve body (10) and extends into the adjustment port (11); The nameplate (30) is detachably snapped into the slot (12) and supported by the limiting buckle (20).

2. The pressure reducing valve (100) according to claim 1, characterized in that, The limiting buckle (20) includes a main body (21) and a support platform (22) disposed on the edge of the main body (21). The main body (21) is connected to the valve body (10). The support platform (22) is used to support the nameplate (30). The thickness of the main body (21) along the axial direction of the valve body (10) is greater than the thickness of the support platform (22) along the axial direction of the valve body (10).

3. The pressure reducing valve (100) according to claim 2, characterized in that, Along the radial direction of the adjustment port (11), the width L1 of the support platform (22) ranges from 1 to 2 mm.

4. The pressure reducing valve (100) according to any one of claims 1-3, characterized in that, The limiting buckle (20) extends radially toward the adjusting port (11).

5. The pressure reducing valve (100) according to claim 4, characterized in that, The length L2 of the limit buckle (20) extending into the adjustment port (11) is 1 / 4 to 1 / 3 of the diameter of the adjustment port (11).

6. The pressure reducing valve (100) according to any one of claims 1-3, characterized in that, The limiting buckle (20) is rotatably set relative to the main body (21).

7. The pressure reducing valve (100) according to any one of claims 1-3, characterized in that, The limiting buckle (20) and the main body (21) are detachably connected.

8. The pressure reducing valve (100) according to any one of claims 1-3, characterized in that, The limit buckle (20) and the valve body (10) are integrally formed.

9. The pressure reducing valve (100) according to any one of claims 1-3, characterized in that, Along the radial direction of the adjustment port (11), the depth h of the slot (12) ranges from 0.3 to 0.5 mm.

10. A gas appliance, characterized in that, Includes the pressure reducing valve (100) as described in any one of claims 1-9.

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