Positioning and sealing structure of electromagnetic valve

Abstract

The utility model discloses a positioning and sealing structure of electromagnetic valve, including valve body and the shell for installing valve body, is provided with the mounting platform on the shell, and the shunt valve includes the valve core and sets up the sealing element at the valve core around, and the sealing element is with lower end and the upper end surface of mounting platform and resists, is provided with a plurality of limit convex points on the mounting platform, and the sealing element is set up in cooperation with limit convex point, and the valve body is installed on the mounting platform, compared with prior art, the utility model discloses the positioning and sealing structure through setting up the sealing element on valve body around and the cooperation setting on mounting platform, and the sealing element lower end is pressed against mounting platform, so that the sealing element can play the effect of sealing, and the limit convex block on mounting platform can play the effect of positioning and fixed when the valve body installs.

Description

Technical Field

[0001] This utility model relates to the technical field of valve body manufacturing and sealing, and in particular to a positioning and sealing structure for a solenoid valve. Background Technology

[0002] The solenoid valves in automotive air suspension systems are primarily used for flow regulation. During the manufacturing process, the vacuum potting process can cause glue to leak into the valve body's mounting area, leading to a malfunction in the flow regulation function. Adding an elastic arc-shaped structure around the valve body, which works by reducing the contact area to increase the locking force, can mitigate glue leakage at the valve core mounting area caused by the vacuum potting process. However, the pull-out force here relies solely on the interference fit, which is insufficient for effective fixation. Utility Model Content

[0003] To address the shortcomings and defects of existing technologies, this invention provides a positioning and sealing structure for a solenoid valve. To improve the sealing effect of the valve body and provide positioning during installation, this invention offers the following technical solutions.

[0004] A positioning and sealing structure for a solenoid valve includes a valve body and a housing for mounting the valve body. The housing is provided with a mounting platform. The diverter valve includes a valve core and a sealing element disposed around the valve core. The lower end of the sealing element abuts against the upper end face of the mounting platform. The mounting platform is provided with a plurality of limiting protrusions. The sealing element is configured to cooperate with the limiting protrusions. The valve body is mounted on the mounting platform.

[0005] Compared with the prior art, the positioning and sealing structure of this utility model uses a sealing element set around the valve body and a mounting platform to cooperate with it. The lower end of the sealing element abuts against the mounting platform, so that the sealing element can achieve a sealing effect. At the same time, the limiting protrusion on the mounting platform can play a positioning and fixing role when the valve body is installed.

[0006] Furthermore, the plurality of limiting protrusions are circumferentially distributed along the mounting platform, and the limiting protrusions are fixedly disposed on the end face of the mounting platform by heat fusion.

[0007] With the above improvements, the limiting protrusions are distributed circumferentially along the installation platform. Multiple limiting protrusions can greatly improve the positioning effect during connection. Moreover, the limiting protrusions are fixed on the installation platform by heat fusion, which has a good fixing effect and low processing difficulty.

[0008] Furthermore, the seal includes an arc-shaped segment made of an elastic material, the two ends of which abut against the end face of the mounting platform.

[0009] Through the above improvements, an arc-shaped segment is set on the seal. The arc-shaped segment is made of elastic material, which makes it easy for the two ends of the arc-shaped segment to abut against the end face of the installation platform. The arc-shaped segment can reduce the force-bearing area, increase the locking force of the force-bearing surface, and improve the sealing effect.

[0010] Furthermore, the sealing element is configured to cooperate with the limiting protrusion, specifically, the arc-shaped segment and the limiting protrusion are fixedly connected by thermal riveting, and several mating holes appear on the arc-shaped segment.

[0011] Through the above improvements, the arc-shaped segment and the limiting protrusion are fixedly connected by hot riveting. The hot riveting applies downward pressure to the arc-shaped segment, creating a mating hole on the arc-shaped segment. The mating hole and the limiting protrusion work together to achieve a certain degree of sealing on the contact surface of the arc-shaped segment, preventing glue overflow during valve assembly.

[0012] Furthermore, a groove is formed around the mating hole.

[0013] Through the above improvements, a groove is generated around the mating hole. The groove can accommodate the adhesive material generated by the arc segment and the limiting protrusion during the hot riveting process, preventing the adhesive material from solidifying on the surface of the parts after the hot riveting is cured, thus reducing the sealing effect of the device.

[0014] Furthermore, the height of the end face of the mounting platform is lower than the height of the upper end face of the housing.

[0015] Through the above improvements, the height of the end face of the installation platform is lower than the height of the upper end face of the housing, which creates a limiting effect when the installation platform is fitted with the valve body, thus improving the stability during assembly.

[0016] Furthermore, the housing is provided with an assembly cavity, and the lower end of the valve core is provided with a plug-in part, which is inserted and fitted into the assembly cavity.

[0017] Through the above improvements, the plug-in part at the lower end of the valve core and the assembly cavity inside the housing are connected by a plug-in fit, which provides a positioning effect during assembly; at the same time, the fit between the plug-in part and the assembly cavity can also enable flow.

[0018] Furthermore, a sealing ring is provided between the insertion part and the assembly cavity.

[0019] With the above improvements, a sealing ring is provided between the insertion part and the assembly cavity, which can further improve the sealing performance during assembly. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure.

[0021] Figure 2 A top-down view of the structure;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure at point AA.

[0023] Figure 4 This is a magnified view of a portion of structure B.

[0024] Among them, 1. Valve body; 1.1 Valve core; 1.2 Seal; 1.21 Arc-shaped section; 1.22 Mating hole; 1.23 Countersunk groove; 1.3 Insertion part; 2. Housing; 2.1 Assembly cavity; 3. Mounting platform; 3.1 Limiting protrusion; 4. Sealing ring. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] like Figures 1 to 4 The diagram illustrates a positioning and sealing structure for a solenoid valve, comprising a valve body 1 and a housing 2 for mounting the valve body 1. The housing 2 is provided with a mounting platform 3. The valve body 1 includes a valve core 1.1 and a sealing element 1.2 disposed around the valve core 1.1. The lower end of the sealing element 1.2 abuts against the upper end face of the mounting platform 3. The mounting platform 3 is provided with a plurality of limiting protrusions 3.1, and the sealing element 1.2 is configured to cooperate with the limiting protrusions 3.1. The valve body 1 is mounted on the mounting platform 3.

[0028] The housing 2 has an assembly cavity 2.1 located at the lower end of the mounting platform 3. The valve core 1.1 of the valve body 1 has a plug-in part 1.3 located at the lower end. During installation, the plug-in part 1.3 is plugged into the assembly cavity 2.1 located inside the housing 2, so that the valve core 1.1 is installed on the mounting platform 3 of the housing 2. The assembly cavity 2.1 can play a preliminary positioning role during installation. At the same time, the plug-in part 1.3 of the valve core 1.1 and the assembly cavity 2.1 can also achieve flow. Furthermore, a sealing ring 4 is provided between the plug-in part 1.3 and the assembly cavity 2.1. The sealing ring 4 can further enhance the sealing performance during assembly and prevent overflow.

[0029] The height of the end face of the mounting platform 3 on the housing 2 is lower than the height of the upper end face of the housing 2. When the valve body 1 is installed on the mounting platform 3, it can act as a fiber to prevent the valve body 1 from shifting.

[0030] like Figure 3 as well as Figure 4 As shown, the mounting platform 3 is provided with several limiting protrusions 3.1. The limiting protrusions 3.1 are distributed in a circle along the end face of the mounting platform 3. The multiple limiting protrusions 3.1 on the mounting platform 3 can greatly improve the positioning effect during connection. Moreover, the limiting protrusions 3.1 are fixed on the mounting platform 3 by heat fusion, which has a good fixing effect and low processing difficulty.

[0031] An arc-shaped segment 1.21 is provided on the sealing element 1.2. The arc-shaped segment 1.21 is made of elastic material, which facilitates the two ends of the arc-shaped segment 1.21 to abut against the end face of the mounting platform 3. The arc-shaped segment 1.21 can reduce the force-bearing area, increase the locking force of the force-bearing surface, and improve the sealing effect.

[0032] The arc-shaped segment 1.21 of the sealing element 1.2 is fixedly connected to the limiting protrusion 3.1 by hot riveting. The hot riveting applies downward pressure to the arc-shaped segment 1.21, creating a mating hole 1.22 on the arc-shaped segment 1.21. The mating hole 1.22 and the limiting protrusion 3.1 are designed to achieve a certain degree of sealing on the contact surface of the arc-shaped segment 1.21, preventing glue overflow during valve assembly. Furthermore, a groove 1.23 is created around the mating hole 1.22. The groove 1.23 can accommodate the glue generated during the hot riveting process between the arc-shaped segment 1.21 and the limiting protrusion 3.1, preventing the glue from solidifying on the surface of the parts after the hot riveting is cured, thus reducing the sealing effect of the device.

[0033] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A positioning and sealing structure for a solenoid valve, comprising a valve body (1) and a housing (2) for mounting the valve body (1), characterized in that: The housing (2) is provided with an installation platform (3). The valve body (1) includes a valve core (1.1) and a sealing element (1.2) disposed around the valve core (1.1). The lower end of the sealing element (1.2) abuts against the upper end face of the installation platform (3). The installation platform (3) is provided with a plurality of limiting protrusions (3.1). The sealing element (1.2) is configured to cooperate with the limiting protrusions (3.1). The valve body (1) is installed on the installation platform (3).

2. The positioning and sealing structure of a solenoid valve according to claim 1, characterized in that: The plurality of limiting protrusions (3.1) are circumferentially distributed along the mounting platform (3), and the limiting protrusions (3.1) are fixedly disposed on the end face of the mounting platform (3) by means of heat fusion.

3. The positioning and sealing structure of a solenoid valve according to claim 1, characterized in that: The sealing element (1.2) includes an arc-shaped segment (1.21) made of an elastic material, and the two ends of the arc-shaped segment (1.21) abut against the end face of the mounting platform (3).

4. The positioning and sealing structure of a solenoid valve according to claim 3, characterized in that: The sealing element (1.2) is configured to cooperate with the limiting protrusion (3.1). Specifically, the arc-shaped segment (1.21) and the limiting protrusion (3.1) are fixedly connected by hot riveting, and several mating holes (1.22) appear on the arc-shaped segment (1.21).

5. The positioning and sealing structure of a solenoid valve according to claim 4, characterized in that: A groove (1.23) is formed around the mating hole (1.22).

6. The positioning and sealing structure of a solenoid valve according to claim 1, characterized in that: The height of the end face of the mounting platform (3) is lower than the height of the upper end face of the housing (2).

7. The positioning and sealing structure of a solenoid valve according to claim 1, characterized in that: The housing (2) is also provided with an assembly cavity (2.1), and the lower end of the valve core (1.1) is provided with a plug-in part (1.3), which is plugged into the assembly cavity (2.1).

8. The positioning and sealing structure of a solenoid valve according to claim 7, characterized in that: A sealing ring (4) is provided between the insertion part (1.3) and the assembly cavity (2.1).

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