Improved electromagnetic valve
By improving the structural design of the solenoid valve, the recovery and directional emission of pilot gas and breathing gas were realized, solving the problem of particulate matter and dust diffusion in the exhaust of traditional solenoid valves and improving the quality of the cleanroom environment.
Patent Information
- Application Number
- CN202520270348.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-19
AI Technical Summary
When traditional solenoid valves exhaust air, the pilot gas and breathing gas are directly discharged into the atmosphere, which may agitate and spread particulate matter and dust in the air, affecting the cleanroom's grade and hygiene standards.
An improved solenoid valve was designed. By setting a breathing chamber, a surrounding groove, and a sealing ring on the solenoid end cap, combined with a manifold, it can realize the recovery and directional discharge of pilot gas and breathing gas, and avoid direct gas diffusion.
This effectively reduces the impact of solenoid valves on the external environment, ensures cleanroom standards and hygiene levels, and improves product quality.
Smart Images
Figure CN223740099U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electromagnetic valve technology and relates to an improved electromagnetic valve. Background Technology
[0002] With the rapid development of pneumatic transmission technology, the environmental requirements of precision manufacturing industries such as semiconductors and precision instruments, as well as industries such as food and beverage, are becoming increasingly stringent. These industries pay particular attention to controlling particulate matter and dust in the surrounding air to meet stringent cleanroom and hygiene standards. When using traditional solenoid valves, if the pilot air and breathing air are directly discharged into the atmosphere, the pressure of the discharged gas may agitate and disperse particulate matter and dust in the air. This may not only affect the cleanroom's classification but also lower hygiene standards, ultimately impacting product quality. Summary of the Invention
[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing an improved solenoid valve capable of recovering gas.
[0004] The objective of this utility model can be achieved through the following technical solution: an improved solenoid valve, comprising:
[0005] The valve body is provided with an electromagnetic end cap, and a pilot valve is provided on the electromagnetic end cap. A breathing chamber is provided on one side of the electromagnetic end cap facing the valve body. A third row of holes communicating with the breathing chamber is also provided on this side. A fourth row of holes communicating with the third row of holes is provided on the bottom surface of the electromagnetic end cap. A first row of holes is provided inside the pilot valve. A second row of holes communicating with the first row of holes is provided inside the electromagnetic end cap. The output end of the second row of holes is located on the bottom surface of the electromagnetic end cap.
[0006] In the aforementioned improved solenoid valve, the solenoid end cap is provided with a notch that connects the breathing chamber to the third row of holes.
[0007] In the aforementioned improved solenoid valve, the solenoid end cap is provided with a first surrounding groove on one side of the breathing chamber, and a first sealing ring is fitted inside the first surrounding groove, with the first sealing ring located directly above the breathing chamber.
[0008] In the aforementioned improved solenoid valve, the solenoid end cap is provided with a second surrounding groove on one side of the breathing chamber, and the two ends of the second surrounding groove are respectively connected to the two ends of the first surrounding groove.
[0009] In the aforementioned improved solenoid valve, a sealing strip is fitted inside the second surrounding groove. The two ends of the sealing strip are respectively connected to the two ends of the bottom of the first sealing ring. The sealing strip and the first sealing ring surround the breathing chamber and the third row of holes.
[0010] In the aforementioned improved solenoid valve, a fifth row of holes is provided on the bottom surface of the solenoid end cap, and the output ends of the fifth row of holes and the third row of holes are connected by a connecting groove, and a partition is provided between the fifth row of holes and the fourth row of holes.
[0011] In the aforementioned improved solenoid valve, a third surrounding groove is provided on the bottom surface of the solenoid end cap. The third surrounding groove surrounds the output end of the second row of holes, the connecting groove, the fourth row of holes, and the fifth row of holes. A second sealing ring is fitted inside the third surrounding groove.
[0012] In the aforementioned improved solenoid valve, a manifold is also included. The valve body and the solenoid end cap are both mounted on the manifold. The side of the manifold facing the solenoid end cap is provided with connecting holes that communicate with the fourth row of holes. There are multiple connecting holes. The manifold is provided with a collection hole, and each connecting hole communicates with the collection hole.
[0013] In the aforementioned improved solenoid valve, the partition plate has through holes that connect the fourth row of holes to the fifth row of holes.
[0014] In the aforementioned improved solenoid valve, the partition plate is provided with a slot, the second sealing ring is provided with a spacer strip, the spacer strip is engaged in the slot, the manifold is provided with an air inlet that communicates with the fifth row of holes, the number of air inlets is multiple, the manifold is provided with an air outlet, and each air inlet is connected to the air outlet.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] 1. The solenoid valve in Embodiment 1 can recover the pilot gas and most of the breathing gas to reduce the gas discharged directly from the solenoid valve into the atmosphere, avoid stirring and spreading particulate matter and dust in the air, and thus reduce the impact of the solenoid valve on the external environment.
[0017] 2. The solenoid valve in Embodiment 2 can recover all pilot gas and breathing gas, and store or directionally transport them to a designated container through a manifold. This can prevent the gas emitted from the solenoid valve from agitating and spreading particulate matter and dust in the air, thereby reducing the impact of the solenoid valve on the external environment.
[0018] 3. In Embodiment 3, by setting the partition strip, the fifth row of holes and the fourth row of holes can be separated, so that the pilot gas in the fifth row of holes will only be discharged to the outside through the air inlet and air outlet, and the breathing gas in the fourth row of holes will only be discharged to the outside through the connecting hole and the collecting hole, thereby further preventing the pilot gas from flowing into the breathing chamber, and also further preventing the breathing gas from flowing into the pilot valve. Attached Figure Description
[0019] Figure 1This is a structural schematic diagram of a preferred embodiment of the present invention.
[0020] Figure 2 yes Figure 1 A structural diagram from another perspective.
[0021] Figure 3 yes Figure 2 A magnified structural diagram of point A in the middle.
[0022] Figure 4 This is an exploded view of the electromagnetic end and the first sealing ring in Embodiment 1.
[0023] Figure 5 This is an exploded view of the electromagnetic end, the first sealing ring, and the second sealing ring in Embodiment 2.
[0024] Figure 6 This is an assembly diagram of the electromagnetic end and the first sealing ring in Embodiment 2.
[0025] Figure 7 This is an assembly diagram of the electromagnetic end and the second sealing ring in Embodiment 2.
[0026] Figure 8 This is an assembly diagram of the solenoid valve installed on the manifold in Embodiment 2.
[0027] Figure 9 This is an assembly diagram of the electromagnetic end and the second sealing ring in Embodiment 3.
[0028] Figure 10 This is an assembly diagram of the solenoid valve installed on the manifold in Embodiment 3.
[0029] In the figure, there are valve body 100, electromagnetic end cap 200, pilot valve 300, breather chamber 210, third row of holes 220, fourth row of holes 230, first row of holes 310, second row of holes 240, notch 250, first surrounding groove 260, first sealing ring 270, second surrounding groove 261, sealing strip 271, fifth row of holes 221, connecting groove 222, partition 280, third surrounding groove 290, second sealing ring 291, manifold 400, connecting hole 410, collecting hole 420, spacer 291a, air inlet 430, and air outlet 440. Detailed Implementation
[0030] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0031] Example 1
[0032] This embodiment can collect pilot gas and most of the breathing gas.
[0033] like Figure 1 — Figure 4 As shown, the improved solenoid valve of this utility model includes a valve body 100, an electromagnetic end cap 200, a pilot valve 300, a breather chamber 210, a third row of holes 220, a fourth row of holes 230, a first row of holes 310, and a second row of holes 240.
[0034] In this invention, the gas located in the pilot valve 300 is called pilot gas, and the gas located in the breathing chamber 210 is called breathing gas.
[0035] A solenoid end cap 200 is provided on the valve body 100, and a pilot valve 300 is provided on the solenoid end cap 200. A breathing chamber 210 is provided on the side of the solenoid end cap 200 facing the valve body 100, and a third row of holes 220 communicating with the breathing chamber 210 is also provided on this side. A fourth row of holes 230 communicating with the third row of holes 220 is provided on the bottom surface of the solenoid end cap 200. A first row of holes 310 is provided inside the pilot valve 300, and a second row of holes 240 communicating with the first row of holes 310 is provided inside the solenoid end cap 200. The output end of the second row of holes 240 is located on the bottom surface of the solenoid end cap 200. When the pilot valve 300 discharges pilot gas, the pilot gas inside the pilot valve 300... The pilot gas will pass through the first row of holes 310 and the second row of holes 240 in sequence, and finally be discharged to the outside through the output end of the second row of holes 240. When the breathing chamber 210 is venting, because the end of the electromagnetic end cap 200 with the breathing chamber 210 is connected to the valve body 100, a small amount of breathing gas in the breathing chamber 210 will diffuse to the surroundings and be directly discharged to the outside of the electromagnetic end cap 200. The remaining breathing gas will be discharged to the outside through the third row of holes 220 and the fourth row of holes 230 in sequence. In this way, people only need to connect containers for collecting gas to the output ends of the fourth row of holes 230 and the second row of holes 240 respectively to collect the pilot gas and breathing gas smoothly.
[0036] The electromagnetic end cap 200 is provided with a notch 250 that connects the breathing chamber 210 with the third row of holes 220. By setting the notch 250, the breathing chamber 210 and the third row of holes 220 can be connected, so that the breathing air in the breathing chamber 210 can smoothly enter the third row of holes 220.
[0037] The electromagnetic end cap 200 is provided with a first surrounding groove 260 on one side of the breathing chamber 210. A first sealing ring 270 is installed in the first surrounding groove 260. The first sealing ring 270 is located directly above the breathing chamber 210. When the breathing chamber 210 exhausts air, the bottom of the first sealing ring 270 will block the breathing chamber 210 from exhausting air outward. That is, when the breathing chamber 210 exhausts air to the surroundings, the breathing air can only escape to the left, right and downward sides of the breathing chamber 210.
[0038] Example 2
[0039] like Figure 5— Figure 8 As shown, compared to Embodiment 1, this embodiment recovers both the pilot gas and the breathing gas.
[0040] The electromagnetic end cap 200 is provided with a second surrounding groove 261 on one side of the breathing chamber 210. The two ends of the second surrounding groove 261 are respectively connected to the two ends of the first surrounding groove 260. A sealing strip 271 is installed in the second surrounding groove 261. The two ends of the sealing strip 271 are respectively connected to the two ends of the bottom of the first sealing ring 270. The sealing strip 271 and the first sealing ring 270 surround the breathing chamber 210 and the third row of holes 220. In this way, the first sealing ring 270 and the sealing strip 271 will surround the breathing chamber 210, so that when the breathing chamber 210 is venting air, the breathing air in the breathing chamber 210 can only be discharged to the outside through the third row of holes 220 and the fourth row of holes 230.
[0041] The bottom surface of the electromagnetic end cap 200 is provided with a fifth row of holes 221. The output ends of the fifth row of holes 221 and the third row of holes 220 are connected by a connecting groove 222. A partition plate 280 is provided between the fifth row of holes 221 and the fourth row of holes 230. The bottom surface of the electromagnetic end cap 200 is provided with a third surrounding groove 290, which surrounds the output end of the second row of holes 240, the connecting groove 222, the fourth row of holes 230, and the fifth row of holes 221. A second sealing ring 291 is fitted inside the third surrounding groove 290. A through hole (not shown in the figure) is opened on the partition plate 280 to connect the fourth row of holes 230 and the fifth row of holes 221. The improved electromagnetic valve of this utility model also includes a manifold 400. The valve body 100 and the electromagnetic end cap 200 are both installed on the manifold 400. The side of the manifold 400 facing the electromagnetic end cap 200 is provided with a connecting hole 410 that communicates with the fourth row of holes 230. There are multiple connecting holes 410. The manifold 400 is provided with a collecting hole 420. Each connecting hole 410 is connected to the collecting hole 420. During installation, the solenoid valve needs to be installed on the manifold 400 and the fourth row hole 230 needs to be connected to the corresponding connecting hole 410. In this way, the pilot gas in the second row hole 240 can only enter the fifth row hole 221 through the connecting groove 222. When the pilot valve 300 needs to release the pilot gas, the pilot gas in the pilot valve 300 will be released to the outside through the first row hole 310, the second row hole 240, the connecting groove 222, the fifth row hole 221, the perforation, the fourth row hole 230, the connecting hole 410 and the collecting hole 420 in sequence. At the same time, the breathing gas released from the breathing chamber 210 to the fourth row hole 230 will be released to the outside through the connecting hole 410 and the collecting hole 420 in sequence. When a collection device is installed at the output end of the collecting hole 420, the breathing gas and the pilot gas can be recovered.
[0042] Furthermore, both the pilot gas discharged by the pilot valve 300 and the pilot gas discharged by the breathing chamber 210 are small amounts. When the pilot valve 300 discharges pilot gas, since the breathing chamber 210 is always connected to the outside atmosphere, even if a small amount of pilot gas enters the breathing chamber 210, it will not affect the operation of the valve body 100. When the breathing chamber 210 discharges a small amount of breathing gas, since the pressure inside the pilot valve 300 is much greater than the atmospheric pressure, the breathing gas discharged from the breathing chamber 210 will be preferentially discharged into the manifold 400 and will not enter the pilot valve 300.
[0043] Example 3
[0044] like Figure 9 — Figure 10 As shown, compared with Embodiment 2, this embodiment changes the structure of the partition 280 so that the fifth row of holes 221 and the fourth row of holes 230 are not connected.
[0045] The partition 280 has a slot (not shown in the figure), and the second sealing ring 291 has a spacer strip 291a, which is engaged in the slot (not shown in the figure). The manifold 400 has multiple air inlets 430 communicating with the fifth row of holes 221. The manifold 400 also has air outlets 440, and each air inlet 430 communicates with an air outlet 440. When the solenoid valve is installed on the manifold 400... After installation, the fifth row of holes 221 and the fourth row of holes 230 can be separated by the partition strip 291a, so that the pilot gas in the fifth row of holes 221 will only be discharged to the outside through the air inlet 430 and the air outlet 440, and the breathing gas in the fourth row of holes 230 will only be discharged to the outside through the connecting hole 410 and the collecting hole 420, thereby further preventing the pilot gas from flowing into the breathing chamber 210, and also further preventing the breathing gas from flowing into the pilot valve 300.
[0046] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0047] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0049] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
Claims
1. An improved electromagnetic valve characterized by, The utility model relates to a valve body, the valve body is equipped with electromagnetic end cover, the electromagnetic end cover is equipped with pilot valve, the electromagnetic end cover is equipped with breathing cavity on the side of valve body, the side is also equipped with the third row hole that communicates with breathing cavity, the bottom surface of electromagnetic end cover is equipped with the fourth row hole that communicates with third row hole, the first row hole is equipped in pilot valve, the second row hole that communicates with first row hole is equipped in electromagnetic end cover, and the output end of second row hole is located on the bottom surface of electromagnetic end cover. The electromagnetic end cover is equipped with a notch that communicates the breathing cavity with the third row hole.
2. An improved electromagnetic valve as claimed in claim 1, wherein The electromagnetic end cover is equipped with a first surrounding groove on one side of the breathing cavity, and a first sealing ring is clamped in the first surrounding groove.
3. An improved electromagnetic valve as claimed in claim 1, wherein The electromagnetic end cover is equipped with a second surrounding groove on one side of the breathing cavity, and the two ends of the second surrounding groove are in communication with the two ends of the first surrounding groove, respectively.
4. An improved electromagnetic valve as claimed in claim 3, wherein A sealing strip is clamped in the second surrounding groove, and the two ends of the sealing strip are connected with the two ends of the bottom of the first sealing ring, respectively.
5. An improved electromagnetic valve as claimed in claim 4, wherein The electromagnetic end cover is equipped with a fifth row hole on the bottom surface, and the fifth row hole is in communication with the output end of the third row hole through a connecting groove.
6. An improved electromagnetic valve as claimed in claim 1, wherein The bottom surface of the electromagnetic end cover is equipped with a third surrounding groove, which surrounds the output end of the second row hole, the connecting groove, the fourth row hole, and the fifth row hole.
7. An improved electromagnetic valve as claimed in claim 6, wherein The utility model also includes a busbar, and the valve body and the electromagnetic end cover are installed on the busbar.
8. An improved electromagnetic valve as claimed in claim 7, wherein The busbar is equipped with a plurality of connecting holes on the side facing the electromagnetic end cover, and the connecting holes are in communication with the fourth row hole.
9. An improved electromagnetic valve as claimed in claim 8, wherein The busbar is equipped with a plurality of air inlet holes in communication with the fifth row hole.
10. The improved electromagnetic valve according to claim 8, wherein The busbar is equipped with an air outlet hole, and each air inlet hole is in communication with the air outlet hole.