阅读说明：本技术 一种先导式高压空气电磁阀 (Pilot-operated high-pressure air electromagnetic valve ) 是由 王英伟 刘子晗 俞健 张德满 蔡标华 谢江辉 尚进 陈国锋 方超 夏巍 于 2021-08-29 设计创作，主要内容包括：本发明属于阀门技术领域,提供一种先导式高压空气电磁阀,包括阀体、主弹簧、弹簧压盖、主阀杆、手动顶杆、阀体压盖、电磁头、顶针、先导阀压盖、先导阀、过滤器、行程开关,所述主阀杆设置在阀体内,阀体压盖通过压盖螺栓连接在阀体的上部,阀体压盖内部设有弹簧压盖,弹簧压盖内部设置主弹簧,主阀杆通过主弹簧与弹簧压盖作用,主阀杆通过防脱凸台与手动顶杆连接,所述手动顶杆顶部可连接操作手柄,所述先导阀压盖通过螺栓连接在阀体的上部,所述先导阀通过电磁头驱动,所述电磁头通过顶针与先导阀作用,先导阀入口处设有过滤器。本发明阀门采用先导式结构,操作简单,可靠性高,能较好地适应高压空气使用环境。(The invention belongs to the technical field of valves, and provides a pilot-operated high-pressure air electromagnetic valve which comprises a valve body, a main spring, a spring gland, a main valve rod, a manual ejector rod, a valve body gland, an electromagnetic head, an ejector pin, a pilot valve gland, a pilot valve, a filter and a travel switch. The valve adopts a pilot structure, is simple to operate and high in reliability, and can be well adapted to the use environment of high-pressure air.)

1. A pilot-operated high-pressure air solenoid valve is characterized in that: including valve body, main spring, spring gland, main valve rod, manual ejector pin, valve body gland, electromagnetism head, thimble, pilot valve gland, pilot valve, filter, travel switch, main valve rod sets up in the valve body, and the valve body gland passes through gland bolted connection on the upper portion of valve body, and the inside spring gland that is equipped with of valve body gland, the inside main spring that sets up of spring gland, main valve rod pass through main spring and spring gland effect, and main valve rod passes through the anticreep boss and is connected with manual ejector pin, operating handle can be connected at manual ejector pin top, the pilot valve gland passes through bolted connection on the upper portion of valve body, the pilot valve passes through the electromagnetism head drive, the electromagnetism head passes through thimble and pilot valve effect, and the pilot valve entrance is equipped with the filter.

2. The pilot-operated high-pressure air solenoid valve according to claim 1, wherein: a groove is formed in the outer portion of the spring gland, and a sealing assembly is arranged in the groove.

3. The pilot-operated high-pressure air solenoid valve according to claim 1, wherein: the middle part of the valve body is provided with a bolt hole which is communicated with the spring gland and the pilot valve, and a valve body screw seal is arranged on the bolt hole.

4. The pilot-operated high-pressure air solenoid valve according to claim 1, wherein: the lower end part of the main valve rod is provided with a travel switch.

Technical Field

The invention belongs to the technical field of valves, and particularly relates to a pilot-operated high-pressure air electromagnetic valve.

Background

High pressure air valves are widely used in industrial valves. Particularly, in a ship or aerospace environment, the conventional high-pressure air valve mostly adopts an electrohydraulic driving operation mode, a hydraulic pipeline is required to provide a power source, the complexity of the system is increased, in addition, the fluctuation of the oil return pressure easily causes the electrohydraulic valve to generate misoperation, the requirements of easy operability and high reliability cannot be met, and the application range of the high-pressure air valve is severely limited.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide the pilot type high-pressure air electromagnetic valve which adopts a pilot type structure, is simple to operate and high in reliability and can be well adapted to the use environment of high-pressure air.

In order to achieve the purpose, the invention adopts the following technical scheme: a pilot-operated high-pressure air electromagnetic valve comprises a valve body, a main spring, a spring gland, a main valve rod, a manual ejector rod, a valve body gland, an electromagnetic head, an ejector pin, a pilot valve gland, a pilot valve, a filter and a travel switch, wherein the main valve rod is arranged in the valve body, the valve body gland is connected to the upper portion of the valve body through a gland bolt, the spring gland is arranged inside the valve body gland, the main spring is arranged inside the spring gland, the main valve rod acts on the spring gland through the main spring, the main valve rod is connected with the manual ejector rod through an anti-falling boss, the top of the manual ejector rod can be connected with an operating handle, the pilot valve gland is connected to the upper portion of the valve body through a bolt, the pilot valve is driven through the electromagnetic head, the electromagnetic head acts on the pilot valve through the ejector pin, and the filter is arranged at the inlet of the pilot valve.

In the technical scheme, a groove is formed in the outer portion of the spring gland, and a sealing assembly is arranged in the groove.

In the technical scheme, the middle part of the valve body is provided with a bolt hole, the bolt hole is communicated with the spring gland and the pilot valve, and a valve body screw is installed on the bolt hole for sealing.

In the above technical solution, a travel switch is provided at the lower end of the main valve stem.

The pilot-operated high-pressure air electromagnetic valve adopts a pilot-operated structure, is simple to operate and high in reliability, and can be well adapted to the high-pressure air use environment.

Drawings

Fig. 1 is a schematic view of a semi-sectional structure of a pilot type high pressure air solenoid valve according to the present invention.

Wherein: 1. the hydraulic control valve comprises a valve body, 2 valve body screws, 3 sealing components, 4 main springs, 5 spring pressing covers, 6 main valve rods, 7 manual ejector rods, 8 valve body pressing covers, 9 valve cover bolts, 10 electromagnetic heads, 11 ejector pins, 12 pilot valve pressing covers, 13 pilot valves, 14 filters and 15 travel switches.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, 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 belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the present embodiment provides a pilot-operated high-pressure air solenoid valve, which includes a valve body 1, a valve body screw 2, a sealing assembly 3, a main spring 4, a spring gland 5, a main valve rod 6, a manual push rod 7, a valve body gland 8, a gland bolt 9, an electromagnetic head 10, an ejector pin 11, a pilot valve gland 12, a pilot valve 13, a filter 14, and a travel switch 15. The main valve rod 6 sets up in valve body 1, and valve body gland 8 passes through gland bolt 9 to be connected on the upper portion of valve body 1, and the inside spring gland 5 that is equipped with of valve body gland 8, and the inside main spring 4 that sets up of spring gland 5, and the outside of spring gland 5 is equipped with the recess, is equipped with seal assembly 3 in the recess, and main valve rod 6 acts on through main spring 4 and spring gland 5, and 6 tip of main valve rod are equipped with travel switch 15, and main valve rod 6 is connected with manual ejector pin 7 through the anticreep boss, operating handle can be connected at 7 tops of manual ejector pin, pilot valve gland 12 passes through bolted connection on the upper portion of valve body 1, pilot valve 13 drives through electromagnetic head 10, and electromagnetic head 10 passes through thimble 11 and pilot valve 13 effects, and pilot valve 13 entrances are equipped with filter 14.

In the above embodiment, the middle part of the valve body is provided with a bolt hole, the bolt hole is communicated with the spring gland 5 and the pilot valve 13, and the bolt hole is provided with the valve body screw 2 for sealing.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.

Details not described in this specification are within the skill of the art that are well known to those skilled in the art.