Electromagnetic control valve element structure

Abstract

The utility model discloses an electromagnetic control valve element structure, and relates to the technical field of valve element cleaning, and the technical scheme is that the electromagnetic control valve element structure comprises a valve body, a circulation cavity is formed in the valve body, the valve body is in sliding connection with a valve element through an electromagnetic device, the valve element is in sliding connection in the circulation cavity, and the electromagnetic device is used for driving the valve element to move; a clamping groove is formed in the position, corresponding to the circulation cavity, of the valve element, and a clamping ring nested with the clamping groove is installed at the position, corresponding to the clamping groove, in the circulation cavity. When the valve element is closed, the face, making contact with fluid, of the valve element is a blocking face, the other face of the valve element is a hidden face, the blocking face of the valve element is provided with a plurality of flow guide grooves communicating with the clamping groove, and the effect is that the fluid flows into the clamping groove through the flow guide grooves, and impurities left in the clamping groove can be cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of spool cleaning, and more specifically, to an electromagnetic control spool structure. Background Art

[0002] In a fluid control system, as a key control component, the sealing performance of an electromagnetic valve directly affects the stability and efficiency of the entire system. To achieve a better sealing effect, the current electromagnetic valve design usually adopts an interlocking structure nested between the spool and the valve body. This design reduces the gap between the spool and the valve body and increases the number of press-fittings between the spool and the valve body in order to achieve a tighter closing effect.

[0003] Specifically, a groove is usually formed on the spool of such an electromagnetic valve, and a fitting convex block is installed at the position corresponding to the groove in the valve body. When the spool and the valve body are fitted together, this structure can achieve precise connection between the spool and the valve body, thereby improving the sealing performance. However, this design also has a significant problem: due to the special position of the groove on the spool, it is difficult to be effectively flushed by the fluid, so impurities are likely to accumulate.

[0004] Especially in environments such as refineries or wastewater treatment plants, due to the high impurity content in the fluid, this problem becomes particularly prominent. The accumulation of impurities in the groove not only affects the sealing effect of the spool, but may also cause valve blockage or leakage, thereby affecting the normal operation of the entire fluid control system.

[0005] To solve this problem, the current common practice is to arrange personnel for cleaning regularly. However, this method is not only cumbersome, but also when performing manual maintenance, the equipment needs to be shut down, which will undoubtedly affect the normal production of the enterprise. In addition, frequent manual cleaning will also increase the operating cost of the enterprise.

[0006] Therefore, in order to solve the above technical problems, this application proposes an electromagnetic control spool structure. Content of the Utility Model

[0007] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide an electromagnetic control spool structure.

[0008] To achieve the above purpose, the utility model provides the following technical solution: an electromagnetic control spool structure, comprising:

[0009] A valve body, a flow cavity is formed in the valve body, and the valve body is slidably connected with a spool through an electromagnetic device. The spool is slidably connected in the flow cavity, and the electromagnetic device is used to drive the spool to move;

[0010] A clamping groove is formed at the position of the spool corresponding to the flow cavity, and a nested clamping ring is installed at the position corresponding to the clamping groove in the flow cavity;

[0011] When the valve core is closed, the side in contact with the fluid is the barrier surface, and the other side is the hidden surface. A plurality of diversion grooves communicating with the engaging grooves are provided on the barrier surface of the valve core.

[0012] Preferably, a rubber layer is provided on the engaging ring;

[0013] When the engaging ring is nested with the engaging groove, the valve core presses the rubber layer, so that the sealing effect between the valve core and the valve body is better.

[0014] Preferably, the caliber of the diversion groove close to the barrier surface of the valve core is larger than the caliber of the diversion groove close to the inside of the engaging groove;

[0015] The fluid flow rate entering from the barrier surface of the valve core is large, while the fluid flow rate flowing out from the inside of the engaging groove is small, increasing the pressure of the fluid flowing out from the inside of the engaging groove, and making it more convenient to clean the impurities in the engaging groove.

[0016] Preferably, the part of the valve core where the engaging groove is opened is divided into a contact end A and a contact end B. The contact end A and the contact end B are simultaneously pressed on the engaging ring, and the contact end B protrudes from the contact end A;

[0017] When the fluid circulates, the fluid in contact with the valve core can wash on the contact end B, reducing the possibility of impurities accumulating at the included angle position between the contact end B and the engaging groove.

[0018] Preferably, the included angles between the connecting positions of the engaging groove and the contact end A and the contact end B are both greater than ninety degrees.

[0019] It can increase the parts of the engaging groove and the contact end A, and the engaging groove and the contact end B in contact with the fluid, enable the fluid to pass through better, and reduce the accumulation of impurities.

[0020] Compared with the prior art, the present utility model has the following beneficial effects:

[0021] 1. In the present utility model, through the diversion grooves provided on the valve core, when the valve core is not completely closed, the fluid flows into the engaging groove through the diversion grooves, and can clean the residual impurities in the engaging groove, thus solving the problem that the impurities in the engaging groove are easy to accumulate at present, requiring manual cleaning regularly, which is more cumbersome and time-consuming. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present utility model, and constitute a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0023] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0024] Figure 2 Schematic diagram of the valve body structure in the present utility model;

[0025] Figure 3 Schematic diagram of the valve core structure in the present utility model;

[0026] Figure 4 Schematic diagram of the flow guiding groove structure in the present utility model;

[0027] Figure 5 Schematic diagram of the engaging groove structure in the present utility model.

[0028] 1. Electromagnetic device; 2. Valve body; 3. Flow cavity; 4. Valve core; 5. Engaging ring; 7. Engaging groove; 8. Flow guiding groove; 9. Contact end A; 10. Contact end B. Specific implementation manner

[0029] As Figures 1-5 shown, the present utility model provides an electromagnetic control valve core structure, including a valve body 2. A flow cavity 3 is opened in the valve body 2, and fluid flows through the flow cavity 3 in the valve body 2. The valve body 2 is slidably connected with a valve core 4 through an electromagnetic device 1. The valve core 4 is slidably connected in the flow cavity 3. The valve core 4 is used to control the flow state in the flow cavity 3, and the electromagnetic device 1 is used to drive the valve core 4 to move. The electromagnetic device 1 includes structures such as an electromagnetic coil and a spring, which will not be elaborated here as they are prior art. The main purpose is to drive the valve core 4 to move in the flow cavity 3 in the valve body 2 through the electromagnetic device 1, so as to achieve the purpose of controlling whether the fluid in the flow cavity 3 flows and controlling the flow rate;

[0030] An engaging groove 7 is opened at the position of the valve core 4 corresponding to the flow cavity 3, and an engaging ring 5 nested with each other is installed at the position of the flow cavity 3 corresponding to the engaging groove 7;

[0031] When the engaging ring 5 is nested with the engaging groove 7, a gap can be formed between the valve core 4 and the valve body 2 to block the fluid in the flow cavity 3. In particular, a rubber layer is provided on the engaging ring 5. When the engaging ring 5 is nested with the engaging groove 7, the valve core 4 presses the rubber layer, which can reduce the gap between the valve core 4 and the valve body 2, so that the sealing effect between the valve core 4 and the valve body 2 is better;

[0032] One side of the valve core 4 in contact with the fluid when closed is the blocking surface, and the other side is the hidden surface, and a plurality of flow guiding grooves 8 communicating with the engaging groove 7 are opened on the blocking surface of the valve core 4;

[0033] In the fluid flow cavity 3, it can flow into the flow guiding groove 8. At this time, there are two cases:

[0034] When the valve core 4 is completely closed, that is, when the engaging ring 5 is completely nested with the engaging groove 7, at this time, the part of the diversion groove 8 in the engaging groove 7 is in complete contact with the engaging ring 5 without any gap. Thus, the fluid will only be blocked in the diversion groove 8 and cannot flow through it, without affecting the sealing effect of the valve core 4;

[0035] When the valve core 4 is not completely closed, that is, when the engaging ring 5 is not completely nested with the engaging groove 7, at this time, the part of the diversion groove 8 in the engaging groove 7 is not in complete contact with the engaging ring 5 and there is a space left. Then, the fluid flows from the blocking surface of the valve core 4 into the diversion groove 8 and then flows out through the end of the diversion groove 8 close to the engaging groove 7, enabling the inside of the engaging groove 7 to be flushed;

[0036] To prevent the fluid flowing normally from affecting the flow of the fluid in the diversion groove 8, the diameter of the diversion groove 8 close to the blocking surface of the valve core 4 is larger than the diameter of the diversion groove 8 close to the inside of the engaging groove 7. The flow rate of the fluid entering from the blocking surface of the valve core 4 is large, while the flow rate of the fluid flowing out from the inside of the engaging groove 7 is small, increasing the pressure of the fluid flowing out from the inside of the engaging groove 7 and making it more convenient to clean the impurities inside the engaging groove 7;

[0037] It should be noted that the part of the valve core 4 where the engaging groove 7 is opened is divided into a contact end A9 and a contact end B10. The contact end A9 and the contact end B10 simultaneously press on the engaging ring 5 to achieve double extrusion, reaching a better sealing effect. And the contact end B10 protrudes from the contact end A9, so that when the fluid flows, the fluid in contact with the valve core 4 can wash on the contact end B10, reducing the possibility of impurities accumulating at the included angle position between the contact end B10 and the engaging groove 7.

[0038] The included angles at the connection positions between the engaging groove 7 and the contact end A9 and the contact end B10 are both greater than ninety degrees;

[0039] It can increase the parts of the engaging groove 7 and the contact end A9, and the engaging groove 7 and the contact end B10 that are in contact with the fluid, enabling the fluid to pass through better and reducing the accumulation of impurities;

[0040] If there are right angles or angles less than right angles in the internal connection structure of the valve core 4, it will cause the fluid in this area to be difficult to flow, with a small flow rate, thus easily causing impurities to accumulate and being difficult to be flushed by the fluid flow;

[0041] It should be noted that the depth of the engaging groove 7 shown in the figure is relatively shallow. In actual application, in order to enhance the sealing effect between the valve core 4 and the valve body 2, the engaging groove 7 will be set deeper. When the engaging groove 7 is deeper, the possibility of impurities remaining in the engaging groove 7 is greater, that is, it is more difficult to clean, and the human and material resources required will be more substantial. Therefore, it is necessary to set up mechanisms such as the diversion groove 8 to reduce the possibility of impurities accumulating in the engaging groove 7 and be able to clean the engaging groove 7.

[0042] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model; any ordinary technician in the industry can smoothly implement the present utility model according to what is shown in the accompanying drawings of the specification and the above description; however, any minor changes, modifications, and equivalent variations made by those skilled in the art within the scope of the technical solution of the present utility model by using the technical content disclosed above are all equivalent embodiments of the present utility model; at the same time, any changes, modifications, and equivalent variations made to the above embodiments based on the essential technology of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An electromagnetic control valve core structure, characterized in that: include: A valve body (2), wherein a flow chamber (3) is provided in the valve body (2), and the valve body (2) is slidably connected to a valve core (4) via an electromagnetic device (1), the valve core (4) is slidably connected in the flow chamber (3), and the electromagnetic device (1) is used to drive the valve core (4) to move; The valve core (4) is provided with a snap-fit ​​groove (7) at a position corresponding to the circulation cavity (3), and a snap-fit ​​ring (5) is installed in a position corresponding to the snap-fit ​​groove (7) in the circulation cavity (3); When the valve core (4) is closed, one side in contact with the fluid is a blocking surface, and the other side is a hidden surface. The blocking surface of the valve core (4) is provided with a plurality of guide grooves (8) communicating with the engaging grooves (7).

2. The electromagnetic control valve core structure according to claim 1, characterized in that: The snap ring (5) is provided with a rubber layer.

3. The electromagnetic control valve core structure according to claim 2, characterized in that: The diameter of the guide groove (8) close to the blocking surface of the valve core (4) is larger than the diameter of the guide groove (8) close to the engaging groove (7).

4. The electromagnetic control valve core structure according to claim 3, characterized in that: The portion of the valve core (4) where the locking groove (7) is provided is divided into a contact end A (9) and a contact end B (10). The contact end A (9) and the contact end B (10) are pressed onto the locking ring (5) at the same time, and the contact end B (10) protrudes from the contact end A (9).

5. The electromagnetic control valve core structure according to claim 4, characterized in that: The included angles at the connection positions between the locking groove (7) and the abutment end A (9) and the abutment end B (10) are all greater than ninety degrees.

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