Pressure reducing valve

Abstract

The utility model relates to a pressure reducing valve which comprises an upper cover, a blank cap, a diaphragm, a piston disc, a reset spring, a connecting screw disc, an ejector rod, a valve sleeve, a main valve disc, a main valve spring, a valve seat and a bottom cover, the valve seat is installed in a valve body, the valve sleeve is arranged on the valve seat, the connecting screw disc is arranged above the valve sleeve, and the bottom of the valve seat is connected with the valve body through the bottom cover. A main valve disc is connected into the valve seat in a matched mode, a main valve spring is arranged between the bottom of the main valve disc and the bottom of the valve seat, the main valve disc is connected with a piston disc located above a connecting screw disc through an ejector rod, a reset spring is arranged between the piston disc and the connecting screw disc, the top of the piston disc is connected with a diaphragm and a blank cap, and the diaphragm and the blank cap are fixedly connected to the valve body. The pressure reducing valve is compact in structure, convenient to install and small in size, the installation period is shortened, and the working efficiency and the installation quality are improved.

Description

Technical Field

[0001] The utility model relates to a pressure reducing valve group, in particular to a pressure reducing valve. Background Art

[0002] Existing pressure reducing valve manifolds are generally used to throttle, filter, and reduce pressure on fluids such as air. Currently, a pressure reducing unit in a pressure reducing valve manifold typically consists of a stop valve, a stop check valve, a pressure reducing valve, a filter, a safety valve, and a pressure gauge. Existing pressure reducing valve manifolds often utilize several pressure reducing units connected in parallel or series, and are then installed and connected on-site. On-site installation requires connecting the pressure reducing valve manifold and pressure reducing units through piping, which is not only inconvenient and inefficient, but also bulky, loose, and time-consuming. Summary of the Invention

[0003] The utility model aims to provide a pressure reducing valve which is not only compact in structure and easy to install, but also small in size and has a shortened installation period, thereby improving work efficiency and installation quality.

[0004] To achieve the above-mentioned purpose, the technical solution of the present utility model is: a pressure reducing valve, including an upper cover, a blind cover, a diaphragm, a piston disc, a reset spring, a connecting screw disc, a push rod, a valve sleeve, a main valve disc, a main valve spring, a valve seat, and a bottom cover. The valve seat is installed in the valve body, a valve sleeve is provided on the valve seat, a connecting screw disc is provided above the valve sleeve, and the bottom of the valve seat is connected to the valve body through the bottom cover; the main valve disc is connected inside the valve seat, a main valve spring is provided between the bottom of the main valve disc and the bottom of the valve seat, the main valve disc is connected to the piston disc located above the connecting screw disc through a push rod, a reset spring is provided between the piston disc and the connecting screw disc, the top of the piston disc is connected to the diaphragm and the blind cover, and the diaphragm and the blind cover are fixedly connected to the valve body.

[0005] Furthermore, the blind cover is fixedly connected to the valve body by the upper cover through screws and spring washers.

[0006] Furthermore, the valve seat and the valve body, as well as the valve sleeve and the valve body are statically sealed via O-rings.

[0007] Furthermore, the main valve disc and the valve seat are dynamically sealed via an O-ring.

[0008] Furthermore, the valve seat is fixedly connected to the valve body via threads.

[0009] Furthermore, the connecting screw disk is fixedly connected to the valve body through threads.

[0010] Furthermore, the pressure reducing valve serves as a multifunctional plug-in high-pressure air pressure reducing module.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The pressure reducing valve has the advantages of compact structure, convenient installation, small size, shortened installation period, improved work efficiency and installation quality. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The utility model discloses a pressure reducing valve whole structure schematic view;

[0014] In the drawing, 1 is upper cover, 2 is screw, 3 is spring washer, 4 is muff cover, 5 is diaphragm, 6 is piston disc, 7 is reset spring, 8 is connecting screw disc, 9 is top rod, 10 is O ring A, 11 is valve sleeve, 12 is main valve disc, 13 is O ring B, 14 is main valve spring, 15 is O ring C, 16 is valve seat, 17 is bottom cover. DETAILED DESCRIPTION

[0015] In order to make the utility model purposes, technical scheme and advantages more clearly, following combining with the drawing and example, this utility model carries out further detailed description, should understand, the specific example described here is only used to explain the utility model, and is not used to limit the utility model, namely the described example is only a part of the utility model embodiment, and is not all the example. The components of the utility model embodiments described and shown in the drawings here can be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0017] As Figure 1 The utility model discloses a pressure reducing valve, including upper cover 1, screw 2, spring washer 3, muff cover 4, diaphragm 5, piston disc 6, reset spring 7, connecting screw disc 8, top rod 9, O ring A 10, valve sleeve 11, main valve disc 12, O ring B 13, main valve spring 14, O ring C 15, valve seat 16, bottom cover 17.

[0018] Valve seat 16 is installed in the valve body, is equipped with valve sleeve 11 on valve seat 16 top, is equipped with connecting screw disc 8 on valve sleeve 11 top, and valve seat 16 bottom is connected with the valve body through bottom cover 17, is connected with main valve disc 12 in valve seat 16, is equipped with main valve spring 14 between main valve disc 12 bottom and valve seat 16 bottom, and main valve disc 12 is connected piston disc 6 located in connecting screw disc 8 top through top rod 9, is equipped with reset spring 7 between piston disc 6 and connecting screw disc 8, and piston disc 6 top is connected with diaphragm 5 and muff cover 4, and diaphragm 5 and muff cover 4 are fixedly connected on the valve body by upper cover 1 through screw 2, spring washer 3.

[0019] Preferably, the valve seat 16 and the valve body are sealed by an O-ring C15.

[0020] Preferably, the valve sleeve 11 and the valve body are sealed by an O-ring A10.

[0021] Preferably, the main valve disc 12 and the valve seat 16 are sealed by an O-ring B13.

[0022] Preferably, the valve seat 16 is fixedly connected to the valve body via threads.

[0023] Preferably, the connecting screw disk 8 is fixedly connected to the valve body via threads.

[0024] Preferably, the pressure reducing valve as a multifunctional plug-in high-pressure air pressure reducing module solves the problems of large space occupied, heavy weight and large leakage of valve and pipeline connection in the traditional mode. By integrating the pressure reducing function, the weight and size can be reduced to the greatest extent to meet the needs of small space on board.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0026] The above content is merely an example and explanation of the structure of the present utility model. Technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the scope of protection of the present utility model.

Claims

1. A pressure reducing valve, characterized in that: It includes an upper cover, a blind cover, a diaphragm, a piston disc, a reset spring, a connecting screw disc, a push rod, a valve sleeve, a main valve disc, a main valve spring, a valve seat, and a bottom cover. The valve seat is installed in the valve body, a valve sleeve is provided on the valve seat, a connecting screw disc is provided above the valve sleeve, and the bottom of the valve seat is connected to the valve body through the bottom cover; the main valve disc is connected inside the valve seat, a main valve spring is provided between the bottom of the main valve disc and the bottom of the valve seat, the main valve disc is connected to the piston disc located above the connecting screw disc through a push rod, a reset spring is provided between the piston disc and the connecting screw disc, the top of the piston disc is connected with a diaphragm and a blind cover, and the diaphragm and the blind cover are fixedly connected to the valve body.

2. The pressure reducing valve according to claim 1, characterized in that: The blind cover is fixed to the valve body by the upper cover through screws and spring washers.

3. The pressure reducing valve according to claim 1, wherein: The valve seat and valve body, as well as the valve sleeve and valve body are statically sealed by O-rings.

4. The pressure reducing valve according to claim 1, wherein: The main valve disc and the valve seat are connected by an O-ring dynamic seal.

5. The pressure reducing valve according to claim 1, characterized in that: The valve seat is fixedly connected to the valve body through threads.

6. The pressure reducing valve according to claim 1, characterized in that: The connecting screw plate is fixedly connected to the valve body through threads.

7. The pressure reducing valve according to any one of claims 1 to 6, characterized in that: The pressure reducing valve is a multifunctional plug-in high-pressure air pressure reducing module.

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