Fixing and supporting piece for internal assembly of electromagnetic valve body

Abstract

The utility model discloses a fixing and supporting piece for an internal component in a valve body of an electromagnetic valve, the electromagnetic valve comprises a valve body and a coil component fixedly connected above the valve body, the internal component is arranged in the valve body, and the fixing and supporting piece is arranged above the internal component; the fixed supporting piece comprises an annular main body and axial supporting parts arranged on the two sides of the main body respectively, and the top ends of the axial supporting parts abut against the lower end face of the coil assembly. Components in the valve body are limited and fixed through the fixed supporting piece, and the problem that parts in the electromagnetic valve are prone to falling off and displacing is solved on the premise that the appearance size is not increased and the internal structure is not changed greatly.

Description

Technical Field

[0001] This utility model relates to the field of solenoid valve technology, specifically to a fixing support for internal components of a solenoid valve body. Background Technology

[0002] Miniature solenoid valves used for pneumatic control have a wide variety of internal components, such as sealing rings, valve ports, brackets with push rods, rubber plugs, springs, etc., which are involved in common product series. Moreover, these components are small in size; for example, the diameter of the plug may be only 2 millimeters. This makes it very easy for these small parts to fall off or shift during product assembly and handling, which can lead to product failure. Utility Model Content

[0003] The purpose of this utility model is to provide a fixing support for the internal components of a solenoid valve body, so as to solve the problems mentioned in the background art regarding the existing technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a fixing support for an internal component of a solenoid valve body, wherein the solenoid valve includes a valve body and a coil assembly fixedly connected to the upper part of the valve body, the valve body is provided with an internal component, and the fixing support is disposed above the internal component; the fixing support includes a ring-shaped main body and axial support portions respectively disposed on both sides of the main body, the top end of the axial support portion abutting against the lower end face of the coil assembly.

[0005] Preferably, the dimensions of the main body match the internal dimensions of the valve body.

[0006] Preferably, the inner surface of the valve body is provided with a groove that matches the axial support portion, and the axial support portion is inserted into the groove along the axial direction.

[0007] Preferably, the cross-sectional shape of the groove is dovetail-shaped.

[0008] Preferably, the main body and the axial support are integrally formed.

[0009] Preferably, the coil assembly includes a housing, a coil, a stationary iron core, and a moving iron core extending into the valve body. A moving iron core spring is provided between the moving iron core and the housing, and the moving iron core spring provides an elastic force that causes the moving iron core to have a downward tendency to move.

[0010] Preferably, the valve body is provided with an air inlet, a working port, and an exhaust port; the internal components sequentially include a valve port component, a plug bracket, a plug, and a plug spring; the lower end face of the valve port component is provided with a valve port communicating with the air inlet; the top of the plug bracket is provided with a push rod that movably passes through the valve port component, corresponding the movement of the moving iron core to the movement of the plug; the upper end face of the plug corresponds to the valve port, and the lower end face corresponds to the exhaust port.

[0011] Compared with the prior art, the advantages of this invention are as follows: This invention limits and fixes the internal components of the valve body by using a fixed support, solving the problem of easy falling and displacement of internal parts of the solenoid valve without increasing the external size or significantly changing the internal structure. In the preferred embodiment of this invention, the circular outer diameter of the fixed support is optimized and improved using limited space and structure to match the valve body, and the fit between the axial support and the valve body adopts a mortise and tenon-like structure, making the structure of the fixed support more stable. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the solenoid valve of this utility model.

[0013] Figure 2 This is an exploded view of the solenoid valve of this utility model.

[0014] Figure 3 This is a cross-sectional schematic diagram of the solenoid valve of this utility model.

[0015] Figure 4 This is a schematic diagram of the fixed support structure of this utility model.

[0016] Figure 5 This is a schematic diagram of the valve body in this utility model. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the following embodiments will provide a more detailed description of this utility model.

[0018] Example: Refer to Figure 1-5 The solenoid valve in this embodiment is mainly assembled from two parts: coil assembly 1 and valve body 2.

[0019] The coil assembly 1 includes a housing 3 and a coil 4, a stationary iron core 5 and a moving iron core 6 disposed within the housing. The moving iron core 6 extends into the valve body 2, and a moving iron core spring 7 is provided between the moving iron core 6 and the housing 3, so that in the de-energized state, the moving iron core 6 tends to move downward under the action of the moving iron core spring 7. When the coil is energized, the moving iron core 6 moves upward against the spring force.

[0020] The valve body 2 has a generally cylindrical cavity inside, and the sides of the valve body are respectively provided with an air inlet 8, a working port 9, and an exhaust port 10. The valve body 2 is provided with internal components, which, from top to bottom, include a valve port component 11, a plug bracket 13, a plug 15, and a plug spring 16.

[0021] In the above structure, the bottom of the valve port 11 is provided with a valve port 12. After the valve port 11 is installed on the valve body, the valve port 12 is connected to the air inlet 8.

[0022] A plug bracket 13 is connected to the outside of the plug 15. A push rod 14 is provided at its top, which movably passes through the valve port 11 and extends above it, corresponding to the lower end face of the moving iron core 6. This coordinates the movement of the moving iron core 6 with the movement of the plug 15. A plug spring 16 is disposed between the plug 15 and the bottom surface of the valve body cavity, giving the plug 15 a tendency to move upwards when no external force is applied.

[0023] The upper end face of the plug 15 corresponds to the valve port 12, and the lower end face corresponds to the exhaust port 10. When the solenoid valve is de-energized, the moving iron core 6 pushes the push rod 14 under the elastic force of the moving iron core spring 7, causing the plug 15 to move downward and block the exhaust port 10. At this time, the air inlet 8 and the working port 9 are connected for air intake. When the solenoid valve is energized, the moving iron core 6 moves upward under the action of electromagnetic force, and the plug 15 moves upward under the elastic force of the plug spring 16, blocking the valve port 12. At this time, the working port 9 and the exhaust port 10 are connected for exhaust.

[0024] In this embodiment, a fixed support 17 is provided above the internal components. The fixed support 17 includes a circular main body 18 and axial support portions 19 integrally formed on both sides of the main body. The outer diameter of the main body 18 is approximately the same as the inner wall size of the valve body. The top of the axial support portion 19 abuts against the lower end face of the coil assembly 1, serving as an axial support and limiting component.

[0025] Furthermore, the inner surface of the valve body is provided with a groove 20 that matches the axial support portion 19, and the groove 20 is generally dovetail-shaped. The axial support portion 19 can be inserted into the groove 20 along the axial direction to form a tenon and mortise structure, and radial fixation is achieved through the cooperation with the groove 20.

[0026] After the solenoid valve in this embodiment is assembled, the support provided by the coil assembly allows the fixed support 17 to fix the internal components to the valve body, thereby improving the structural stability of the internal components and effectively solving the problem of easy falling and displacement of internal parts of the solenoid valve.

[0027] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A fixing support for an internal component of a solenoid valve body, the solenoid valve comprising a valve body and a coil assembly fixedly connected to the top of the valve body, the valve body containing an internal component, characterized in that... The fixed support is disposed above the internal component; the fixed support includes a ring-shaped main body and axial support portions respectively disposed on both sides of the main body, the top end of the axial support portion abutting against the lower end face of the coil assembly.

2. A fixing support for an internal component of a solenoid valve body according to claim 1, characterized in that, The main body dimensions match the internal cavity dimensions of the valve body.

3. A fixing support for an internal component of a solenoid valve body according to claim 1 or 2, characterized in that, The inner surface of the valve body is provided with a groove that matches the axial support part, and the axial support part is inserted into the groove along the axial direction.

4. A fixing support for an internal component of a solenoid valve body according to claim 3, characterized in that, The trench has a dovetail-shaped cross-section.

5. A fixing support for an internal component of a solenoid valve body according to claim 1, characterized in that, The main body and the axial support are integrally formed.

6. A fixing support for an internal component of a solenoid valve body according to claim 1, characterized in that, The coil assembly includes a housing, a coil, a stationary iron core, and a moving iron core extending into the valve body. A moving iron core spring is provided between the moving iron core and the housing, and the moving iron core spring provides an elastic force that causes the moving iron core to have a downward tendency to move.

7. A fixing support for an internal component of a solenoid valve body according to claim 6, characterized in that, The valve body is provided with an air inlet, a working port, and an exhaust port; The internal components sequentially include a valve port, a plug bracket, a plug, and a plug spring; the lower end face of the valve port is provided with a valve port communicating with the air inlet; the top of the plug bracket is provided with a push rod that moves through the valve port, corresponding the movement of the moving iron core to the movement of the plug; the upper end face of the plug corresponds to the valve port, and the lower end face corresponds to the exhaust port.

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