Intelligent electrically controlled valve

Abstract

This utility model relates to the field of electromagnetic valve technology, specifically an intelligent electrically controlled valve, including a connecting end and a valve body. The connecting end is connected to the valve body and includes an electromagnetic coil, an iron core, a valve stem, and a spring. The electromagnetic coil and the iron core are disposed within the connecting end, with the electromagnetic coil surrounding the iron core. The valve stem and the iron core form a sliding pair. The spring abuts against the iron core and the valve stem. A plunger is formed at the bottom end of the valve stem, which cooperates with a valve seat inside the valve body. An annular groove is provided on the side of the valve stem. Additionally, a limiting ring is included, disposed within the valve body. A spring is provided on the limiting ring, which abuts against the annular groove. The valve stem is fixed by the annularly distributed springs cooperating with the annular groove, resulting in good fixing effect and preventing uneven force deformation of the valve stem from affecting the sealing effect. The valve stem can be fixed at any height. Its structure is simple, its design is reasonable, and it has practical significance and promotional value.

Description

Technical Field

[0001] This utility model relates to the field of solenoid valves, and in particular to an intelligent electrically controlled valve. Background Technology

[0002] A solenoid valve is a basic automated actuator that uses electromagnetic force to control the on / off state or direction of fluids (liquids, gases, oils, etc.). It is commonly used in industrial control systems to adjust the direction, flow rate, and other parameters of the medium, and can be used with different control circuits to achieve intelligent control of fluids.

[0003] Solenoid valves can be divided into normally closed and normally open types according to their structure. In practical use, normally closed solenoid valves often need to maintain an open working state (refer to the background technology of a low-power fluid solenoid valve in CN222633953U). Continuous opening not only consumes electrical energy but also requires high control of the valve stem. The purpose of this utility model is to improve the existing solenoid valve structure to solve the above problems and enable normally closed solenoid valves to have a valve stem limiting function. Utility Model Content

[0004] The purpose of this invention is to provide an intelligent electrically controlled valve to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a connecting end and a valve body. The connecting end is connected to the valve body. The connecting end refers to a component used for connecting to control equipment. In specific implementations, it can be connected by wires or wirelessly according to actual needs, without substantially affecting the technical effect. The connecting end includes an electromagnetic coil, an iron core, a valve stem, and a spring. The electromagnetic coil and the iron core are disposed within the connecting end, with the electromagnetic coil surrounding the iron core. The valve stem and the iron core form a sliding pair. The spring abuts against the iron core and the valve stem. A plunger is formed at the bottom of the valve stem, which cooperates with a valve seat inside the valve body. An annular groove is provided on the side of the valve stem. Furthermore, it includes a limiting ring disposed within the valve body, on which a spring is provided. The spring abuts against the annular groove.

[0006] To optimize the above technical solution, the following measures are further taken: the reed is in the shape of a slight arc, the surface of the reed is coated with polytetrafluoroethylene, there is a gap between the reeds and they are distributed in a rotationally symmetrical manner around the valve stem with the axis of the limiting ring as the center, the reed can be attracted by an electromagnet composed of an electromagnetic coil and an iron core. The reed refers to an elastic sheet-like metal component made of metal. The specific material used is not the technical content to be protected by the applicant, nor is it a necessary technical feature. Therefore, it will not be further explained. As long as it meets the aforementioned requirements and can be attracted by an electromagnet, it is applicable. The purpose of setting the polytetrafluoroethylene coating is to improve the corrosion resistance of the reed and at the same time avoid surface scaling from affecting the bending deformation of the reed.

[0007] As a further improvement to the above technical solution, it also includes a float, which is a ring-shaped component mounted on the valve stem and located inside the valve body. The float is a ring-shaped component made of a material with a density less than that of the fluid being transported, which can float. Its purpose is to reduce the gap between the valve stem and the valve body caused by the fluid impact.

[0008] As a further improvement to the technical solution: a ball bearing is provided on the inner side of the float block. The ball bearing abuts against the side of the valve stem and the ball bearing and the float block form a spherical pair. The purpose of the ball bearing is to protect the float block and prevent it from colliding with the valve stem. At the same time, the ball bearing can improve the smoothness of the valve stem movement and prevent the valve stem from getting stuck at the float block.

[0009] As an improvement to the aforementioned technical solution: a cavity is formed inside the valve stem, and the top of the valve stem is located inside the cavity to form a sliding pair with the iron core along the length of the iron core. The cavity guides the movement of the valve stem and avoids deviation of the valve stem during the process.

[0010] As an improvement to the aforementioned technical solution, the thickness of the end of the spring that connects to the limiting ring is less than the thickness of the end of the spring that is away from the limiting ring. This structural design helps the spring to deform under the action of the electromagnet, ensuring that the spring can separate from the annular groove on the valve stem in time and avoid the spring affecting the movement of the valve stem.

[0011] As can be seen from the above description of the structure of this utility model, compared with the prior art, this utility model has the following advantages: A. The valve stem is fixed by the engagement of ring-shaped springs and annular grooves, allowing the valve stem to be fixed at any height. B. The reeds are arranged in a ring around the valve stem, which not only provides a good fixing effect but also avoids uneven stress on the valve stem, which could affect the sealing effect and prevent the valve stem from being stressed on one side. C. The gaps between the reeds are independent of each other, and they can be bent and deformed under the force of the electromagnet, which helps to remove scale from the surface of the reeds and prevents scale from affecting the fixing effect of the reeds on the valve stem. Attached Figure Description

[0012] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 for Figure 2 Enlarged view of a specific area; Figure 4This is a schematic diagram of the three-dimensional structure of the limiting ring; In the diagram: Connecting end-1, electromagnetic coil-101, iron core-102, valve stem-103, spring-104, plunger-105, valve seat-106, annular groove-107, limiting ring-108, spring-109, gap-1010, float-1011, ball-1012, cavity-1013, valve body-2. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Example 1 Please see Figure 1-4 This utility model provides an intelligent electrically controlled valve, including a connecting end 1 and a valve body 2, wherein the connecting end 1 is connected to the valve body 2; the connecting end 1 includes an electromagnetic coil 101, an iron core 102, a valve stem 103, a spring 104 and a limiting ring 108.

[0015] The electromagnetic coil 101 and the iron core 102 are disposed in the connection end 1, with the electromagnetic coil 101 surrounding the iron core 102.

[0016] The valve stem 103 and the iron core 102 form a sliding pair. A cavity 1013 is formed inside the valve stem 103. The top end of the valve stem 103 is located inside the cavity 1013 and forms a sliding pair with the iron core 102 along the length direction of the iron core 102. The spring 104 abuts against the iron core 102 and the valve stem 103. A plunger 105 is formed at the bottom end of the valve stem 103 and cooperates with the valve seat 106 inside the valve body 2. An annular groove 107 is opened on the side of the valve stem 103.

[0017] The limiting ring 108 is disposed inside the valve body 2. A spring 109 is disposed on the limiting ring 108. The spring 109 can abut against the annular groove 107. The thickness of the end of the spring 109 connected to the limiting ring 108 is less than the thickness of the end of the spring 109 away from the limiting ring 108. The spring 109 is in the shape of a minor arc. The surface of the spring 109 is coated with polytetrafluoroethylene. There are gaps 1010 between the springs 109, which are distributed in a rotationally symmetrical manner around the valve stem 103 with the axis of the limiting ring 108 as the center.

[0018] Example 2 Please see Figure 1-4This utility model provides an intelligent electrically controlled valve, including a connecting end 1 and a valve body 2, wherein the connecting end 1 is connected to the valve body 2; the connecting end 1 includes an electromagnetic coil 101, an iron core 102, a valve stem 103, a spring 104, a limiting ring 108, and a float 1011.

[0019] The electromagnetic coil 101 and the iron core 102 are disposed in the connection end 1, with the electromagnetic coil 101 surrounding the iron core 102.

[0020] The valve stem 103 and the iron core 102 form a sliding pair. A cavity 1013 is formed inside the valve stem 103. The top end of the valve stem 103 is located inside the cavity 1013 and forms a sliding pair with the iron core 102 along the length direction of the iron core 102. The spring 104 abuts against the iron core 102 and the valve stem 103. A plunger 105 is formed at the bottom end of the valve stem 103 and cooperates with the valve seat 106 inside the valve body 2. An annular groove 107 is opened on the side of the valve stem 103.

[0021] The limiting ring 108 is disposed inside the valve body 2. A spring 109 is disposed on the limiting ring 108. The spring 109 can abut against the annular groove 107. The thickness of the end of the spring 109 connected to the limiting ring 108 is less than the thickness of the end of the spring 109 away from the limiting ring 108. The spring 109 is in the shape of a minor arc. The surface of the spring 109 is coated with polytetrafluoroethylene. There are gaps 1010 between the springs 109, which are distributed in a rotationally symmetrical manner around the valve stem 103 with the axis of the limiting ring 108 as the center.

[0022] The float 1011 is annularly sleeved on the valve stem 103 and located inside the valve body 2. The float 1011 is located above the plunger 105. A ball 1012 is provided on the inner side of the float 1011. The ball 1012 abuts against the side of the valve stem 103 and the ball 1012 and the float 1011 form a spherical pair.

[0023] Working principle: When the electromagnetic coil 1010 is energized, it can form an electromagnet with the iron core 102. The electromagnet can attract the valve stem 103 to move upward along the cavity 1013. At this time, the spring 104 is compressed, the plunger 105 and the valve seat 106 are separated, and the fluid can pass through the valve seat 106. When the electromagnetic coil 1010 is de-energized, the valve stem 103 can move along the cavity 1013 under the action of the spring 104, causing the plunger 105 to press against the valve seat 106. At this time, the plunger 105 blocks the valve seat 106, preventing the fluid from passing through.

[0024] In Embodiments 1 and 2, when the electromagnetic coil 1010 is energized and forms an electromagnet with the iron core 102, it can attract the spring 109. At this time, the spring 109 bends towards the electromagnet side, causing the spring 109 to separate from the annular groove 107, and the valve stem 103 can move freely. When the electromagnetic coil 1010 is de-energized, the electromagnet no longer attracts the spring 109. At this time, the spring 109 resets and can press against the annular groove 107 on the side of the valve stem 103, which can lock the valve stem 103 and prevent the valve stem 103 from moving.

[0025] In embodiment 2, the float 1011 will rise due to the buoyancy of the fluid. Regardless of the height of the plunger 105, the float 1011 will block the gap between the valve stem 103 and the valve body 2, reducing the impact of the fluid on the spring 109 and preventing the spring 109 from being twisted and deformed by the impact, which would affect the fit between the spring 109 and the annular groove 107.

[0026] The control method of this utility model is to achieve automatic control through an external controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] In the description of this utility model, it should be noted that the terms "center", "length", "width", "thickness", "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, or the orientation or positional relationship commonly used when the utility model product is in use. 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.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An intelligent electrically controlled valve, characterized in that, include: A connecting end (1) and a valve body (2), wherein the connecting end (1) is connected to the valve body (2); The connection end (1) includes an electromagnetic coil (101), an iron core (102), a valve stem (103), and a spring (104). The electromagnetic coil (101) and the iron core (102) are arranged inside the connection end (1), and the electromagnetic coil (101) surrounds the iron core (102). The valve stem (103) and the iron core (102) form a sliding pair. The spring (104) abuts against the iron core (102) and the valve stem (103). A plunger (105) is formed at the bottom of the valve stem (103) to cooperate with the valve seat (106) in the valve body (2). An annular groove (107) is provided on the side of the valve stem (103). It also includes a limiting ring (108), which is disposed inside the valve body (2). A spring (109) is provided on the limiting ring (108), which can abut against the annular groove (107).

2. The intelligent electrically controlled valve according to claim 1, characterized in that: The reed (109) is in the shape of a slight arc, and the surface of the reed (109) is coated with polytetrafluoroethylene. There are gaps (1010) between the reeds (109) and they are distributed in a rotationally symmetrical manner around the axis of the limiting ring (108) and surround the valve stem (103).

3. The intelligent electrically controlled valve according to claim 1, characterized in that: It also includes a float (1011), which is annularly mounted on the valve stem (103) and located inside the valve body (2). The float (1011) is located above the plunger (105).

4. The intelligent electrically controlled valve according to claim 1, characterized in that: A ball (1012) is provided on the inner side of the float (1011). The ball (1012) abuts against the side of the valve stem (103) and the ball (1012) and the float (1011) form a spherical pair.

5. An intelligent electrically controlled valve according to any one of claims 1-4, characterized in that: A cavity (1013) is formed inside the valve stem (103), and the top of the valve stem (103) is located inside the cavity (1013) to form a moving pair with the iron core (102) along the length direction of the iron core (102).

6. An intelligent electrically controlled valve according to any one of claims 1-4, characterized in that: The thickness of the end of the reed (109) connected to the limiting ring (108) is less than the thickness of the end of the reed (109) away from the limiting ring (108).

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