Isolation type electromagnetic valve
By using a pressing ring and discharge pipe structure of corrosion-resistant hard materials in the isolated solenoid valve, the problems of poor sealing effect and media retention are solved, and more efficient corrosive media isolation and the service life of the solenoid valve are achieved.
Patent Information
- Application Number
- CN202420857782.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-04-23
AI Technical Summary
The existing isolating solenoid valves have poor sealing effect on the sealing structure, and corrosive media is prone to seep into and retain, resulting in corrosion of internal components and reduced service life.
The first and second compression rings of corrosion-resistant hard material are used to clamp the sealing ring of the telescopic membrane sleeve on the movable cavity and the sealing plate respectively, and combine the transparent discharge pipe and collection box to ensure that the medium does not stay and is discharged in time. .
It significantly improves the sealing effect, prevents corrosive media from infiltration, and discharges the retained media in time through the discharge pipe, extending the service life of the solenoid valve.
Smart Images
Figure CN222297107U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electromagnetic valves, and more specifically relates to an isolation type electromagnetic valve. Background Art
[0002] Isolation type solenoid valves are generally used in pipelines that convey corrosive media. In order to prevent the internal parts of the solenoid valve from being corroded, a sealing mechanism is set on the valve to prevent the flowing medium from entering the interior of the solenoid valve. For example, the patent technology with publication number CN216589961U discloses an isolation type anti-corrosion solenoid valve, whose sealing structure includes an isolation diaphragm, a telescopic rubber sleeve and a telescopic diaphragm sleeve. The valve plug, connecting column, etc. are wrapped inside by the sealing structure to achieve isolation from the corrosive medium.
[0003] The connection between the telescopic rubber sleeve and the telescopic membrane sleeve on the sealing diaphragm is that the outer ring is connected to the sealing diaphragm through a rubber bolt, and the sealing effect is poor. Once the medium enters the movable tube where the isolation diaphragm moves, it cannot be discharged by itself. After the medium stays in the movable tube for too long, it will still penetrate into the interior through the connection gap between the isolation diaphragm and the telescopic rubber sleeve, and then corrode the internal connecting column and moving iron core, etc., resulting in a reduced service life of the solenoid valve. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides an isolation type solenoid valve, the internal structure of which can more effectively prevent the infiltration of corrosive media, and the infiltrated corrosive media can be discharged in time to avoid their long-term retention.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an isolation solenoid valve, comprising a shell, a moving iron core is slidably connected in the shell, a connecting rod is arranged on the moving iron core, a valve plug is arranged on the connecting rod, an active cavity is arranged in the shell, a sealing plate is slidably connected in the active cavity, the sealing plate is connected to the connecting rod, a telescopic film sleeve is arranged outside the connecting rod, a first sealing ring is arranged on the opening edges at both ends of the telescopic film sleeve, a first clamping ring is arranged on the first sealing ring, the first clamping ring at one end of the telescopic film sleeve clamps the first sealing ring to the upper wall of the active cavity, and the first clamping ring at the other end clamps the first sealing ring to the sealing plate, a transparent discharge pipe is arranged on the side wall of the active cavity, and a collecting box is arranged on the outside of the shell.
[0006] Furthermore, a sealing film sleeve is sleeved on the valve plug, a second sealing ring is arranged on the sleeve edge of the sealing film sleeve, a second clamping ring is arranged on the second sealing ring, and the second clamping ring presses the second sealing ring onto the sealing plate.
[0007] Furthermore, the first clamping ring and the housing, the first clamping ring and the sealing plate, and the second clamping ring and the sealing plate are all connected via bolts and nuts, and the first clamping ring, the second clamping ring and the sealing plate share a bolt.
[0008] Furthermore, the collection box and the discharge pipe are sealed and detachably connected.
[0009] Furthermore, the first clamping ring and the second clamping ring are made of corrosion-resistant hard material.
[0010] Compared with the prior art, the utility model has the following beneficial effects: the first sealing rings at both ends of the telescopic membrane sleeve can be respectively pressed against the top wall of the active cavity and the sealing plate through the first clamping ring, thereby improving the sealing effect of the telescopic membrane sleeve and more effectively preventing the infiltration of corrosive media. In addition, when the valve plug opens the pipeline to allow the medium to flow, the sealing plate rises to be flush with the discharge pipe. At this time, if the medium infiltrates from the gap between the sealing ring and the inner wall of the active cavity and stays on the sealing plate, the medium can be discharged in time through the discharge pipe to prevent it from staying on the sealing plate for a long time. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of the isolation type solenoid valve of the utility model.
[0012] Figure numerals: housing 1; moving iron core 2; connecting rod 3; valve plug 4; movable chamber 5; sealing plate 6; telescopic membrane sleeve 7; first sealing ring 8; first clamping ring 9; discharge pipe 10; collecting box 11; sealing membrane sleeve 12; second sealing ring 13; second clamping ring 14. DETAILED DESCRIPTION
[0013] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.
[0014] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" and "a number" is two or more, unless otherwise clearly and specifically defined.
[0015] Reference Figure 1 The utility model is further described.
[0016] An isolation type solenoid valve comprises a shell 1, a moving iron core 2 is slidably connected in the shell 1, a connecting rod 3 is arranged on the moving iron core 2, a valve plug 4 is arranged on the connecting rod 3, an active cavity 5 is arranged in the shell, a sealing plate 6 is slidably connected in the active cavity 5, the sealing plate 6 is connected to the connecting rod 3, a telescopic film sleeve 7 is arranged on the outer sleeve of the connecting rod 3, first sealing rings 8 are arranged on the opening edges at both ends of the telescopic film sleeve 7, a first clamping ring 9 is arranged on the first sealing ring 8, the first clamping ring 9 at one end of the telescopic film sleeve 7 clamps the first sealing ring 8 to the upper wall of the active cavity 5, and the first clamping ring 9 at the other end clamps the first sealing ring 8 to the sealing plate 6, a transparent discharge pipe 10 is arranged on the side wall of the active cavity 5, and a collecting box 11 is arranged on the outer side of the shell 1.
[0017] like Figure 1 As described above, the first sealing rings 8 at both ends of the telescopic membrane sleeve 7 can be respectively pressed against the top wall of the active cavity 5 and the sealing plate 6 through the first clamping ring 9, thereby improving the sealing effect of the telescopic membrane sleeve 7 and more effectively preventing the infiltration of corrosive media. In addition, when the valve plug 4 opens the pipeline to allow the medium to flow, the sealing plate 6 rises to be flush with the discharge pipe 10. At this time, if the medium penetrates from the gap between the sealing ring and the inner wall of the active cavity 5 and stays on the sealing plate 6, the medium can be discharged in time through the discharge pipe 10 to prevent it from staying on the sealing plate 6 for a long time.
[0018] like Figure 1 As shown, in this example, preferably, a sealing film sleeve 12 is provided on the valve plug 4, a second sealing ring 13 is provided on the sleeve edge of the sealing film sleeve, a second clamping ring 14 is provided on the second sealing ring 13, and the second clamping ring 14 presses the second sealing ring 13 onto the sealing plate 6.
[0019] like Figure 1 As shown, in this example, preferably, the first clamping ring 9 and the outer shell, the first clamping ring 9 and the sealing plate 6, and the second clamping ring 14 and the sealing plate 6 are all connected by bolts and nuts, and the first clamping ring 9, the second clamping ring 14 and the sealing plate 6 share a bolt.
[0020] In this example, preferably, the collecting box 11 and the discharge pipe 10 are sealed and detachably connected.
[0021] In this example, preferably, the first clamping ring 9 and the second clamping ring 14 are made of corrosion-resistant hard material.
[0022] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. An isolation solenoid valve, characterized in that: It includes an outer shell, a moving iron core is slidably connected in the outer shell, a connecting rod is provided on the moving iron core, a valve plug is provided on the connecting rod, an active cavity is provided in the outer shell, a sealing plate is slidably connected in the active cavity, the sealing plate is connected to the connecting rod, a telescopic film sleeve is provided on the outer sleeve of the connecting rod, first sealing rings are provided on the opening edges at both ends of the telescopic film sleeve, a first clamping ring is provided on the first sealing ring, the first clamping ring at one end of the telescopic film sleeve clamps the first sealing ring to the upper wall of the active cavity, and the first clamping ring at the other end clamps the first sealing ring to the sealing plate, a transparent discharge pipe is provided on the side wall of the active cavity, and a collecting box is provided on the outer side of the outer shell.
2. The isolation solenoid valve according to claim 1, characterized in that: A sealing film sleeve is sleeved on the valve plug, a second sealing ring is arranged on the sleeve edge of the sealing film sleeve, a second clamping ring is arranged on the second sealing ring, and the second clamping ring presses the second sealing ring onto the sealing plate.
3. The isolation solenoid valve according to claim 2, characterized in that: The first clamping ring and the housing, the first clamping ring and the sealing plate, and the second clamping ring and the sealing plate are all connected via bolts and nuts, and the first clamping ring, the second clamping ring and the sealing plate share a bolt.
4. The isolation solenoid valve according to claim 1, characterized in that: The collecting box is sealed and detachably connected to the discharge pipe.
5. The isolation solenoid valve according to claim 1, characterized in that: The first clamping ring and the second clamping ring are made of corrosion-resistant hard material.