Flat position anti-rotation quick-connect double electromagnetic valve and series valve group using same

Abstract

The utility model discloses a kind of flat position anti-rotation quick-connecting double electromagnetic valves, including first valve seat and second valve seat, first valve seat is equipped with inlet portion and connecting portion, inlet portion and connecting portion are through, second valve seat is equipped with first interface portion and second interface portion, first interface portion and second interface portion are through, second interface portion outside is equipped with series quick-connecting structure, series quick-connecting structure and connecting portion axial insertion, series quick-connecting structure and connecting portion radial clamping, connecting portion inside is equipped with flat surface, flat surface is butted on series quick-connecting structure.The utility model uses split valve seat, by the flat surface of connecting portion inside and series quick-connecting structure butting and series quick-connecting structure and connecting pipe portion's axial insertion and radial clamping, jointly form flat position anti-rotation mechanism, improve connection stability, simplify series structure, it is convenient to multiple valve flexible series combination and form valve group, shorten installation time, reduce maintenance cost.

Description

Technical Field

[0001] This invention relates to the field of electromagnetic valve series combination technology, and more particularly to a flat-position anti-rotation quick-connect dual electromagnetic valve and a series valve assembly using the same. Background Technology

[0002] Existing series solenoid valve assemblies generally adopt an integrated valve seat structure. Although this simplifies the structure to some extent, when one of the solenoid valves on the integrated valve seat fails, the entire valve seat usually needs to be replaced, increasing maintenance costs. Moreover, the structure of the integrated valve seat is fixed, making it difficult to flexibly combine and adjust according to different application scenarios and needs. On the other hand, some solenoid valve assemblies that adopt a split valve seat structure have structural design defects in the series interface, such as having many series components and complex series assembly processes, or the series interface may rotate or loosen during the operation of the solenoid valve assembly, affecting sealing performance, fluid transmission performance, and equipment operation stability. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a dual solenoid valve with a flat position anti-rotation mechanism, fast series connection, and flexible combination, as well as a series valve group using it.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A flat-position anti-rotation quick-connect dual solenoid valve is characterized in that it includes a first valve seat and a second valve seat. The first valve seat has an inlet portion and a connecting portion, the inlet portion and the connecting portion being in communication. The second valve seat has a first interface portion and a second interface portion, the first interface portion and the second interface portion being in communication. A series quick-connect structure is provided on the outer side of the second interface portion. The series quick-connect structure is axially inserted into the connecting portion and radially engaged with the connecting portion. A flat surface is provided on the inner side of the connecting portion, the flat surface abutting against the series quick-connect structure.

[0006] Furthermore, the first interface portion has the same structure as the connecting portion.

[0007] Furthermore, the series quick-connect structure includes a plug-in limiting part, a snap-fit ​​limiting platform, and a plug-in part. The plug-in limiting part corresponds to the position of the flat surface, and a snap-fit ​​gap is provided between the snap-fit ​​limiting platform and the plug-in limiting part. The plug-in part faces the connecting part.

[0008] Furthermore, a sealing plug is fitted on the outer side of the insertion part, a flat sleeve is fitted on the outer side of the insertion limiting part, and a snap-fit ​​limiting sleeve is fitted on the outer side of the snap-fit ​​limiting platform.

[0009] Furthermore, the flat sleeve is interference-fitted with the flat surface.

[0010] Furthermore, an O-ring is provided between the sealing plug and the inner side of the connecting part.

[0011] Furthermore, the connecting part is provided with a card interface, the position of the card interface corresponds to the position of the card connection gap, and the series quick-connect structure is connected to the connecting part by a first retaining spring, which passes through the card interface and is engaged with the card connection gap.

[0012] Furthermore, a first solenoid valve body is connected to the first valve seat, and a second solenoid valve body is connected to the second valve seat. Both the first valve seat and the second valve seat are provided with fluid outflow channels. The first solenoid valve body is used to control the opening and closing of the fluid outflow channels on the first valve seat, and the second solenoid valve body is used to control the opening and closing of the fluid outflow channels on the second valve seat.

[0013] The second solenoid valve body and the second valve seat are fixed together by a second snap ring.

[0014] This utility model also provides a series valve assembly, which includes the above-mentioned dual solenoid valves.

[0015] The beneficial effects of this utility model are:

[0016] 1. The dual solenoid valve of this utility model forms a stable contact surface by abutting the flat surface on the inner side of the connecting part with the series quick-connect structure, effectively restricting the radial rotation of the second interface part after series connection. At the same time, the series quick-connect structure and the axial insertion and radial snap-fit ​​of the connecting pipe form a double limiting mechanism to ensure that the two solenoid valves are stable in position after assembly and will not be displaced due to external forces. This improves the stability and reliability of the dual solenoid valve connection, avoids problems such as sealing failure and fluid channel misalignment caused by rotation or displacement, and ensures the normal operation of the system. Moreover, the axial insertion and radial snap-fit ​​simplify the series structure, enabling quick series connection, shortening installation time, and reducing maintenance costs. When it is necessary to replace or repair one of the solenoid valves, it is not necessary to disassemble a large number of pipes; it can be done simply by operating the series quick-connect structure.

[0017] 2. The dual solenoid valve of this utility model adopts a split valve seat for quick assembly and eliminates unnecessary connecting pipes. This design realizes the sharing of the water inlet and pressure water pipe, reduces the number of pipe connection points, and thus reduces the number of leakage points. The whole structure is more concise and compact, and it is also easy to connect multiple valves in series and flexibly assemble them into a series valve group to meet different assembly requirements. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional schematic diagram of the dual solenoid valve of this utility model;

[0020] Figure 2 This is a schematic diagram showing the connection between the first valve seat and the second valve seat of this utility model;

[0021] Figure 3 This is a schematic diagram of the second valve seat structure of this utility model;

[0022] Figure 4 This is a schematic diagram of a preferred combination of the series valve group of this utility model. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "left," "right," "first," "second," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0025] See Figures 1 to 3 A flat-position anti-rotation quick-connect dual solenoid valve includes a first valve seat 100 and a second valve seat 200. The first valve seat 100 is provided with an inlet portion 110 and a connecting portion 120, which are connected. The second valve seat 200 is provided with a first interface portion 210 and a second interface portion 220, which are connected. A series quick-connect structure 221 is provided on the outside of the second interface portion 220. The series quick-connect structure 221 is axially inserted into the connecting portion 120 and radially engaged with the connecting portion 120. A flat surface 122 is provided on the inside of the connecting portion 120, which abuts against the series quick-connect structure 221.

[0026] It should be noted that this dual solenoid valve uses a split valve seat, with the two valve seats connected in series via a second interface 220. The series quick-connect structure 221 on the second interface 220 uses both axial insertion and radial snap-fit ​​with the connecting part 120 to achieve rapid series connection of the dual solenoid valves and, after series connection, radial and axial limiting between the second interface 220 and the connecting part 120. Axial insertion allows the connecting part 120 to be inserted into the series quick-connect structure 221 along the axial direction, initially determining the relative position of the two solenoid valves in the axial direction and preventing excessive movement of the connecting part 120 in the axial direction. Radial snap-fit ​​further restricts the displacement of the connecting part 120 in the radial direction. This dual limiting mechanism of axial and radial directions ensures that the dual solenoid valves maintain a stable positional relationship after assembly and will not be displaced by external forces, ensuring the stability of the entire dual solenoid valve structure. Furthermore, the flat surface 122 on the inner side of the connecting part 120 abuts against the series quick-connect structure 221, which further enhances the stability of the second interface 220 after series connection. The key anti-rotation function is that after the axial insertion and radial snap-fit ​​of the series quick-connect structure 221 and the connecting part 120 are completed, a stable contact surface is formed between the flat surface 122 and the series quick-connect structure 221, which restricts the rotational freedom of the connecting part 120 relative to the series quick-connect structure 221 in the circumferential direction. In this way, even if the solenoid valve is subjected to external forces such as fluid impact and vibration during operation, the interaction force between the flat surface 122 and the series quick-connect structure 221 can effectively prevent the connecting part 120 from rotating, thereby ensuring the stability of the connection between the two solenoid valves and preventing problems such as seal failure or fluid channel misalignment caused by rotation.

[0027] During assembly, the connecting part 120 of the first solenoid valve is slowly inserted axially into the series quick-connect structure 221 on the first interface part 210 of the second solenoid valve. During insertion, care must be taken to maintain the coaxiality of the connecting part 120 and the series quick-connect structure 221 to avoid misalignment that could lead to insertion difficulties or damage to the interface. Once the connecting part 120 is fully inserted, a radial snap-fit ​​operation is performed. After completing the series assembly of the two solenoid valves, the inlet part 110 is connected to the system's water inlet pipe, and the first interface part 210 is connected to the system's subsequent pipes or other solenoid valves.

[0028] This dual solenoid valve design uses a split valve seat, with the two valve seats connected in series via the second interface 220, eliminating redundant connecting pipes. This design allows for a shared inlet and pressure water pipe, reducing pipe connection points and thus the number of leakage points. The overall structure is simpler and more compact. The flat surface 122 on the inner side of the connecting part 120 abuts against the series quick-connect structure 221, forming a stable contact surface. This effectively restricts the radial rotation of the second interface 220 after series connection. At the same time, the axial insertion and radial snap-fit ​​constitute a dual limiting mechanism, ensuring that the two solenoid valves are stable in position after assembly and will not be displaced due to external forces. This improves the stability and reliability of the dual solenoid valve connection, avoiding problems such as sealing failure and fluid channel misalignment caused by rotation or displacement, ensuring the normal operation of the system. Moreover, the axial insertion and radial snap-fit ​​simplify the series structure, enabling quick series connection, shortening installation time, and reducing maintenance costs. When it is necessary to replace or repair one of the solenoid valves, it is not necessary to disassemble a large number of pipes; it can be done simply by operating the series quick-connect structure 221.

[0029] Preferably, the first interface portion 210 and the connecting portion 120 have the same structure. It should be noted that this design makes the first valve seat 100 universal. It is only necessary to assemble the second interface portion 220 of the next first valve seat 100 with the first interface portion 210 of the previous first valve seat 100 in the same way as described above, connecting the second interface portion 220 and the connecting portion 120, to complete the multi-valve series connection. This allows for easy expansion into a multi-valve series system. Moreover, the multi-valve series operation is unified, reducing costs and the occurrence of human error. Furthermore, when a valve seat malfunctions and needs to be replaced, there is no need to find a corresponding valve seat of a specific specification, improving the convenience and efficiency of maintenance.

[0030] like Figure 3 As shown, the series quick-connect structure 221 includes a plug-in limiting part 221a, a snap-fit ​​limiting platform 221b and a plug-in part 221c. The plug-in limiting part 221a is positioned corresponding to the flat surface 122. A snap-fit ​​gap is provided between the snap-fit ​​limiting platform 221b and the plug-in limiting part 221a. The plug-in part 221c faces the connecting part 120.

[0031] It should be noted that when the second interface part 220 is inserted into the connecting part 120, the insertion part 221c enters the connecting part 120 first. During the insertion process, the insertion limiting part 221a limits the insertion position of the second interface part 220. The locking gap limits the position of the second interface part 220 and the connecting part 120 when they are radially locked. That is, the locking limiting platform 221b and the insertion limiting part 221a together limit the radial and axial stability of the second interface part 220 in the connecting part 120 after insertion. The insertion limiting part 221a corresponds to the flat surface 122 and limits the relative rotation of the second interface part 220 and the connecting part 120 in the circumferential direction.

[0032] Furthermore, a sealing plug 221d is provided on the outer side of the insertion part 221c, a flat sleeve 221e is provided on the outer side of the insertion limiting part 221a, and a snap-fit ​​limiting sleeve 221f is provided on the outer side of the snap-fit ​​limiting platform 221b.

[0033] It should be noted that the sealing plug 221d effectively prevents fluid leakage from the right end of the second interface 220 (the insertion end with the connecting part 120); since the insertion limiting part 221a corresponds to the flat surface 122, the flat sleeve 221e is fitted onto the surface of the flat part. When the second interface 220 is inserted into place, the flat sleeve 221e and the flat surface 122 fit tightly, increasing the contact area and friction, further improving the reliability of anti-rotation, and avoiding wear caused by friction between the insertion limiting part 221a and the flat surface 122 during assembly or vibration during operation. This design can better resist external interference and ensure that in complex working environments, the first, The relative position of the second solenoid valve remains constant. Furthermore, after the connecting part 120 is connected to the second interface part 220, the flat sleeve 221e fills the tiny gap between them, further enhancing the sealing effect and preventing fluid leakage from the gap between the insertion limiting part 221a and the connecting part 120. The snap-fit ​​limiting sleeve 221f is fitted onto the surface of the snap-fit ​​limiting platform 221b and cooperates with it to provide axial and radial dual limiting for the second interface part 220, preventing excessive movement of the second interface part 220 within the connecting part 120 in both axial and radial directions. This ensures the stability of the connection between the two solenoid valves and further prevents fluid leakage. In other words, through the independent action and mutual cooperation of the sealing plug 221d, the flat sleeve 221e, and the snap-fit ​​limiting sleeve 221f, the connection stability between the second interface part 220 and the connecting part 120 is improved. Simultaneously, a multi-stage sealing mechanism is provided for the series connection of the solenoid valves, effectively avoiding potential leakage problems associated with separate valve seat connections.

[0034] To further improve connection stability and sealing performance, the flat sleeve 221e and the flat surface 122 are interference-fitted. This fit generates significant friction between them. During solenoid valve operation, the valve is subjected to various external forces such as fluid impact and equipment vibration. This high friction effectively resists these forces, preventing relative sliding or rotation between the flat sleeve 221e and the flat surface 122, thus avoiding connection failure due to loosening. Because of the tightness of the interference fit, the flat sleeve 221e and the flat surface 122 will not experience significant displacement in the axial and radial directions, ensuring connection accuracy and sealing. This guarantees correct alignment of the fluid channels between the solenoid valves, preventing fluid leakage, pressure loss, or unstable flow caused by positional deviations.

[0035] An O-ring 221G is also provided between the sealing plug 221d and the inner side of the connecting part 120. The O-ring 221G can fill the tiny gap between the sealing plug 221d and the inner side of the connecting part 120, forming a sealing barrier to further prevent fluid leakage from the connection and ensure stable internal pressure of the system. Moreover, during the operation of the solenoid valve, vibration and impact will be generated. The O-ring 221G can absorb and buffer these vibration and impact forces, reduce wear and damage between the sealing plug 221d and the connecting part 120, and extend the service life of the components.

[0036] To improve the ease of assembly and disassembly of the radial snap-fit ​​structure 221 in series, a snap-fit ​​interface 121 is provided on the connecting part 120. The position of the snap-fit ​​interface 121 corresponds to the position of the snap-fit ​​gap. The series quick-fit assembly and the connecting part 120 are snapped together by a first snap ring 222, which passes through the snap-fit ​​interface 121 and snaps into the snap-fit ​​gap.

[0037] It should be noted that the position of the snap-fit ​​interface 121 corresponds to the position of the snap-fit ​​gap, providing precise positioning for the snap-fit ​​of the first snap-fit ​​spring 222. During installation, simply passing the first snap-fit ​​spring 222 through the snap-fit ​​interface 121 allows it to be accurately snapped into the snap-fit ​​gap, greatly simplifying the installation steps, improving installation efficiency, and reducing rework caused by inaccurate installation positions. When maintenance or replacement of the solenoid valve is required, simply removing the first snap-fit ​​spring 222 from the snap-fit ​​interface 121 and the snap-fit ​​gap allows for easy disassembly of the connecting part 120 and the series quick-connect assembly. Furthermore, the snap-fit ​​spring 222, passing through the snap-fit ​​interface 121 and snapping into the snap-fit ​​gap, forms a stable mechanical connection that can effectively withstand various external forces generated during the operation of the solenoid valve, preventing loosening or separation between the connecting part 120 and the series quick-connect structure 221, and ensuring the stability and reliability of the dual solenoid valve series system.

[0038] like Figure 1 As shown, a first solenoid valve body 300 is connected to the first valve seat 100 of the dual solenoid valve, and a second solenoid valve body 400 is connected to the second valve seat 200. Both the first valve seat 100 and the second valve seat 200 are provided with fluid outflow channels 500. The first solenoid valve body 300 is used to control the opening and closing of the fluid outflow channel 500 on the first valve seat 100, and the second solenoid valve body 400 is used to control the opening and closing of the fluid outflow channel 500 on the second valve seat 200.

[0039] To improve assembly efficiency and ensure the stability of the solenoid valve during operation, the second solenoid valve body 400 and the second valve seat 200 are radially fixed by a second snap ring 600. The second snap ring 600 provides reliable clamping force, ensuring a tight connection between the valve body and the valve seat, preventing loosening or leakage during operation, and ensuring the normal operation of the solenoid valve. The second snap ring 600 is easy to connect and disconnect, allowing for quick connection and disassembly of the valve body and valve seat. This saves time and labor costs and improves work efficiency during solenoid valve maintenance and replacement. Furthermore, by selecting a suitable second snap ring 600, its elastic deformation capability can accommodate valve bodies and valve seats of different radial dimensions, further improving the versatility of the valve seat.

[0040] See Figure 4 A series valve assembly that uses the aforementioned dual solenoid valves.

[0041] It should be noted that the first interface portion 210 of the aforementioned dual solenoid valve can be designed to be connected in series with other solenoid valves. In the preferred embodiment described above, the first interface portion 210 is configured to have the same structure as the connecting portion 120. That is to say, the second valve seat 200 is modular, and when connected in series, each solenoid valve can be connected to each other in sequence through the first interface portion 210 of the upper valve seat and the second interface portion 220 of the lower valve seat to form a series valve group, without the need for complicated operation steps.

[0042] It is understandable that, in another preferred embodiment, the first interface portion 210, the connecting portion 120, and the inlet portion 110 can be designed to have the same structure. That is to say, the first valve seat 100 and the second valve seat 200 are the same, thereby enabling the entire dual solenoid valve to be modularly designed. When connected in series, the inlet portion 110 of the next dual solenoid valve and the second interface portion 220 of the previous dual solenoid valve can be connected to each other to form a series valve group.

[0043] Theoretically, this series valve group can realize the arbitrary and rapid series connection of multiple valves to adapt to different application scenarios. In the above preferred method, due to the modular design of the valve seat, the mold manufacturing cost is reduced and the versatility of the valve seat is improved.

[0044] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A flat-position anti-rotation quick-connect dual solenoid valve, characterized in that, The device includes a first valve seat and a second valve seat. The first valve seat has an inlet portion and a connecting portion, which are connected to each other. The second valve seat has a first interface portion and a second interface portion, which are connected to each other. A series quick-connect structure is provided on the outer side of the second interface portion. The series quick-connect structure is axially inserted into the connecting portion and radially snapped into the connecting portion. A flat surface is provided on the inner side of the connecting portion, and the flat surface abuts against the series quick-connect structure.

2. The quick-connect dual solenoid valve with anti-rotation function in flat position according to claim 1, characterized in that, The first interface portion has the same structure as the connecting portion.

3. The quick-connect dual solenoid valve with anti-rotation function in flat position according to claim 2, characterized in that, The series quick-connect structure includes a plug-in limiting part, a snap-fit ​​limiting platform, and a plug-in part. The plug-in limiting part corresponds to the position of the flat surface. A snap-fit ​​gap is provided between the snap-fit ​​limiting platform and the plug-in limiting part. The plug-in part faces the connecting part.

4. The quick-connect dual solenoid valve with anti-rotation function in flat position according to claim 3, characterized in that, A sealing plug is fitted on the outer side of the insertion part, a flat sleeve is fitted on the outer side of the insertion limiting part, and a snap-fit ​​limiting sleeve is fitted on the outer side of the snap-fit ​​limiting platform.

5. The quick-connect dual solenoid valve with anti-rotation function in flat position according to claim 4, characterized in that, The flat sleeve is interference-fitted with the flat surface.

6. The quick-connect dual solenoid valve with anti-rotation function in flat position according to claim 4, characterized in that, An O-ring is provided between the sealing plug and the inner side of the connecting part.

7. The quick-connect dual solenoid valve with anti-rotation function in flat position according to claim 4, characterized in that, The connecting part is provided with a card interface, the position of the card interface corresponds to the position of the card connection gap, and the series quick-connect structure is connected to the connecting part by a first snap ring, which passes through the card interface and is engaged with the card connection gap.

8. The quick-connect dual solenoid valve with anti-rotation function in flat position according to claim 4, characterized in that, A first solenoid valve body is connected to the first valve seat, and a second solenoid valve body is connected to the second valve seat. Both the first valve seat and the second valve seat are provided with fluid outflow channels. The first solenoid valve body is used to control the opening and closing of the fluid outflow channels on the first valve seat, and the second solenoid valve body is used to control the opening and closing of the fluid outflow channels on the second valve seat.

9. The flat-position anti-rotation quick-connect dual solenoid valve according to claim 8, characterized in that, The second solenoid valve body and the second valve seat are fixed together by a second snap ring.

10. A series valve assembly, characterized in that, Includes the dual solenoid valve described in any one of claims 1-9.

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