Electromagnetic valve fixing structure and testing device

Abstract

The utility model belongs to the technical field of electromagnetic valve testing, and discloses an electromagnetic valve fixing structure and a testing device. The electromagnetic valve fixing structure comprises a base assembly and a hollow upper cover. Wherein the base assembly comprises a base main body and a first sealing piece, the first sealing piece is annularly arranged in the base main body, a testing part of a valve to be tested is inserted into the base main body and is in contact with the first sealing piece, the hollow upper cover is arranged outside part of the valve to be tested in a sleeving mode and is connected with the base main body, and the hollow upper cover can downwards abut against the valve to be tested in the Z-axis direction; and / or the valve to be tested can downwards press the first sealing element along the Z axis. The electromagnetic valve fixing structure provided by the utility model can ensure the good sealing performance of the valve to be tested in the base main body, prevents the test medium from leaking through a gap between the base main body and the valve to be tested, and further can better ensure the test accuracy of the valve to be tested.

Description

TECHNICAL FIELD

[0001] The utility model relates to electromagnetic valve test technical field especially relates to a kind of electromagnetic valve fixing structure and testing device. BACKGROUND

[0002] Automobile shock absorber is widely used in automobile vibration damper, automobile shock absorber needs the cooperation of solenoid valve on automobile suspension, so that solenoid valve is used to control the inflow and outflow of oil / gas, to adjust the damping force of automobile shock absorber, to control and reduce the vibration of vehicle body. Among them, solenoid valve needs to be tested by solenoid valve testing device before being installed into automobile shock absorber.

[0003] Among them, in solenoid valve testing device, solenoid valve is fixed by fixing structure, so that the performance of solenoid valve can be tested easily;However, due to the poor sealing effect of the fixing structure at present, test oil or test gas is easy to leak through the gap between fixing structure and solenoid valve, which cannot guarantee the test accuracy of solenoid valve. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of electromagnetic valve fixing structure and testing device, the electromagnetic valve fixing structure can guarantee that the sealing effect of first sealing member between base body and valve to be tested is better, can avoid that test medium leaks through the gap between base body and solenoid valve, and then can better guarantee the test accuracy of solenoid valve.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] Electromagnetic valve fixing structure, comprising:

[0007] Base assembly, comprising base body and first sealing member, the first sealing member is annularly arranged in the base body, and the test part of valve to be tested is inserted into the base body and contacts the first sealing member;

[0008] Hollow upper cover, which is sleeved on part of the valve to be tested and connected with the base body;

[0009] Among them, the hollow upper cover can press the valve to be tested downward along Z axis to compress the first sealing member, and / or the valve to be tested can compress the first sealing member downward along Z axis.

[0010] As preferred, the material of the first sealing member is red copper material, the base body is provided with annular first sealing groove, and the first sealing member is accommodated in the first sealing groove.

[0011] Preferably, the hollow upper cover is provided with a first step surface, and the outer wall of the valve to be tested is provided with a second step surface, and the first step surface is pressed downward along the Z axis to the second step surface.

[0012] Preferably, the hollow upper cover comprises:

[0013] A connecting portion is connected to one end of the base body, and part of the test portion of the valve to be tested is located in the connecting portion;

[0014] A locking portion is connected to the other end of the connecting portion, and the inner diameter of the connecting portion is larger than the inner diameter of the locking portion along the X axis, so that the connecting position between the connecting portion and the locking portion forms the first step surface, and the locking portion is used for accommodating part of the valve stem portion of the valve to be tested.

[0015] Preferably, the connecting portion is threadedly connected to the base body.

[0016] Preferably, the outer periphery of the locking portion is polygonal, and the locking portion can drive the connecting portion to be threadedly screwed into the base body along the Z axis downward to lock the connecting portion and the base body, and the first step surface can be pressed downward along the Z axis to the second step surface.

[0017] Preferably, the inner wall surface of the connecting portion is annularly provided with a second sealing groove, the second sealing groove is used for limiting and clamping a second sealing member, and the second sealing member is annularly abutted to the outer periphery of the valve to be tested.

[0018] Preferably, the outer periphery of the connecting portion is annularly provided with a third sealing groove, the third sealing groove is used for limiting and clamping a third sealing member, and the third sealing member is annularly abutted to the inner wall surface of the base body.

[0019] Preferably, the base body is threadedly connected to the test portion of the valve to be tested.

[0020] The electromagnetic valve testing device comprises a test table and an electromagnetic valve fixing structure as described above, the base body is sealingly arranged on the test table, the base body is provided with a first communication hole and a second communication hole which are respectively communicated with the test table, and the test table is used for introducing a test medium into one of the first communication hole and the second communication hole.

[0021] The valve to be tested has an open state and a closed state, when the valve to be tested is in the open state, the valve to be tested is in communication with the first communication hole and the second communication hole, and when the valve to be tested is in the closed state, the valve to be tested blocks the first communication hole and the second communication hole.

[0022] The utility model discloses the beneficial effect that:

[0023] The solenoid valve fixing structure of the present invention is configured such that the first sealing member is arranged in a ring shape in the base body, so that the test portion of the valve to be tested is inserted into the base body and contacts the first sealing member, and the hollow upper cover is sleeved over a portion of the valve to be tested and connected to the base body, so that the hollow upper cover can press the valve to be tested downward along the Z axis to compress the first sealing member, and / or the valve to be tested can compress the first sealing member downward along the Z axis, so as to ensure that the first sealing member has a better sealing effect between the base body and the valve to be tested, and can prevent the test medium from leaking through the gap between the base body and the solenoid valve, thereby better ensuring the test accuracy of the solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a first isometric view of the solenoid valve fixing structure provided in the first embodiment of the present utility model;

[0025] Figure 2 This is a first cross-sectional view of the solenoid valve fixing structure provided in the first embodiment of the present utility model;

[0026] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle;

[0027] Figure 4 yes Figure 2 A partial enlarged view of point B in the middle;

[0028] Figure 5 This is a second axonometric view of the solenoid valve fixing structure provided in the second embodiment of the present utility model;

[0029] Figure 6 This is a second cross-sectional view of the solenoid valve fixing structure provided in the second embodiment of the present utility model;

[0030] Figure 7 yes Figure 6 A partial enlarged view of point C in the middle;

[0031] Figure 8 yes Figure 6 A partial enlarged view of point D in the middle.

[0032] In the picture:

[0033] 1. Base body; 111. First sealing groove; 12. First communicating hole; 13. Second communicating hole; 14. Process hole; 15. Third step surface; 151. Fourth sealing groove;

[0034] 2. Hollow upper cover; 21. Connecting portion; 211. First step surface; 212. Second sealing groove; 213. Third sealing groove; 22. Locking portion;

[0035] 3, valve to be tested; 31, second step surface; 4, first seal; 5, second seal; 6, third seal; 7, fourth seal. DETAILED DESCRIPTION

[0036] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not limit the utility model. In addition, it should be noted that, for the convenience of description, only the part related to the utility model is shown in the drawings, not all the structures.

[0037] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0038] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0039] In the description of the embodiment, the terms "upper", "lower", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in description, and have no special meaning.

[0040] Embodiment one

[0041] An electromagnetic valve fixing structure is provided in the embodiment, which comprises Figures 1-2As shown, the electromagnetic valve fixing structure comprises a base assembly and a hollow upper cover 2; wherein the base assembly comprises a base body 1 and a first sealing piece 4, the first sealing piece 4 is annularly arranged in the base body 1, the test part of the valve to be tested 3 is inserted into the base body 1 and contacts the first sealing piece 4; the hollow upper cover 2 is sleeved on part of the valve to be tested 3 and connected with the base body 1; the hollow upper cover 2 can press downward on the valve to be tested 3 along the Z axis to compress the first sealing piece 4, and / or the valve to be tested 3 can press the first sealing piece 4 downward along the Z axis. In this embodiment, the hollow upper cover 2 presses downward on the valve to be tested 3 along the Z axis to compress the first sealing piece 4.

[0042] The electromagnetic valve fixing structure in this embodiment changes the sealing mode between the valve to be tested 3 and the base body 1 compared with the prior art; by arranging the first sealing piece 4 annularly in the base body 1, the test part of the valve to be tested 3 is inserted into the base body 1 and contacts the first sealing piece 4, and the hollow upper cover 2 is sleeved on part of the valve to be tested 3 and connected with the base body 1, so that the hollow upper cover 2 can press downward on the valve to be tested 3 along the Z axis to compress the first sealing piece 4, so that the first sealing piece 4 is tightly fitted between the base body 1 and the valve to be tested 3, thereby ensuring that the sealing effect of the first sealing piece 4 between the base body 1 and the valve to be tested 3 is good, avoiding leakage of the test medium through the gap between the base body 1 and the valve to be tested 3, and thereby better ensuring the test accuracy of the valve to be tested 3. In this embodiment, the valve to be tested 3 can be specifically an electromagnetic valve built into an automobile shock absorber.

[0043] Further, the material of the first sealing piece 4 is red copper material, so that the first sealing piece 4 has good ductility and flexibility, thereby ensuring the reliability and stability of the sealing; and the red copper material has certain corrosion resistance, which can prolong the service life of the first sealing piece 4.

[0044] Specifically, as shown in the drawings, Figure 3 A first sealing groove 111 annularly arranged in the base body 1, the first sealing piece 4 is accommodated in the first sealing groove 111, which can fix and limit the installation position of the first sealing piece 4 in the base body 1, avoid the first sealing piece 4 from falling out of the base body 1, and ensure the connection stability and reliability between the first sealing piece 4 and the base body 1. In this embodiment, the first sealing piece 4 can be specifically a sealing gasket.

[0045] Optionally, as shown in the drawings, Figure 3As shown, the height of the first seal 4 is higher than the depth of the first sealing groove 111, so that the top end surface of the first seal 4 protrudes upward to the groove top of the first sealing groove 111, so that the bottom end surface of the test portion of the valve to be tested 3 can be pressed downward along the Z axis to the top end surface of the first seal 4, so that the fitting contact between the valve to be tested 3 and the first seal 4 is tighter, and a sealing interface is formed on the fitting contact surface of the two, thereby preventing the test medium from leaking through the connection between the base body 1 and the valve to be tested 3.

[0046] Alternatively, as Figure 4 As shown, a first step surface 211 is formed on the inner wall of the hollow upper cover 2, and a second step surface 31 is formed on the outer wall of the valve to be tested 3. The first step surface 211 presses downwardly against the second step surface 31 along the Z-axis. With the above arrangement, when the hollow upper cover 2 is sleeved onto the outer periphery of the valve to be tested 3, the first step surface 211 fits and presses against the second step surface 31. The first step surface 211 can also apply a downward pressing force along the Z-axis, firmly pressing against the second step surface 31. This effectively limits the displacement of the valve to be tested 3 in the Z-axis direction, ensures the stable installation of the valve to be tested 3 within the base body 1, and ensures that the test portion of the valve to be tested 3 presses tightly against the first sealing member 4, thereby providing reliable sealing conditions for subsequent testing of the valve to be tested 3.

[0047] Further, if Figure 4 As shown, the hollow upper cover 2 includes a connecting portion 21 and a locking portion 22. One end of the connecting portion 21 is connected to the base body 1, and a portion of the test portion of the valve 3 to be tested is confined within the connecting portion 21. The locking portion 22 is connected to the other end of the connecting portion 21. Along the X-axis, the inner diameter of the connecting portion 21 is larger than the inner diameter of the locking portion 22, so that the connection between the connecting portion 21 and the locking portion 22 forms the first stepped surface 211 described above. The locking portion 22 is used to accommodate a portion of the valve stem of the valve 3 to be tested. In this embodiment, the connecting portion 21 and the locking portion 22 are integrally formed.

[0048] By providing a connecting portion 21 connected to the base body 1 and a locking portion 22 fixedly connected to the connecting portion 21, on the one hand, a first step surface 211 can be formed by the inner diameter difference between the connection position of the locking portion 22 and the connecting portion 21 in the X-axis direction, so that the hollow upper cover 2 can press the valve to be tested 3 downward along the Z-axis; on the other hand, the connecting portion 21 and the locking portion 22 cooperate with each other, so that the valve to be tested 3 can be inserted into the base body 1 and at the same time, the valve to be tested can be sealed and fixed in the base body 1 through the connection between the connecting portion 21 and the base body 1, and the connecting portion 21 and the locking portion 22 can provide a limiting effect for the valve to be tested 3, which not only ensures the installation accuracy and stability of the valve to be tested 3 in the base body 1, but also effectively avoids the problem of the valve to be tested 3 being offset or shaking in the hollow upper cover 2.

[0049] Optionally, as shown in Figure 4 The connection part 21 is threadedly connected with the base body 1. The above arrangement can ensure high connection reliability of the connection part 21 with the base body 1, and the connection is simple and convenient. In other embodiments, the connection part 21 and the base body 1 can also be connected by clamping or other methods, and the connection between the two can be achieved. Here, no specific limitation is made.

[0050] Further, as shown in Figure 1 The outer periphery of the locking part 22 is polygonal. When the locking part 22 is screwed, the connection part 21 can be rotated downward along the Z-axis to screw at least part of the connection part 21 into the base body 1, so as to lock the connection part 21 with the base body 1 and achieve the threaded connection between the connection part 21 and the base body 1. During the threaded rotation, the locking part 22 can drive the first stepped surface 211 to press against the second stepped surface 31 along the Z-axis.

[0051] The outer periphery of the locking part 22 is polygonal. When the locking part 22 is screwed, the connection part 21 can be rotated downward along the Z-axis to screw at least part of the connection part 21 into the base body 1, so as to lock the connection part 21 with the base body 1 and achieve the threaded connection between the connection part 21 and the base body 1. During the threaded rotation, the locking part 22 can drive the first stepped surface 211 to press against the second stepped surface 31 along the Z-axis.

[0052] Optionally, as shown in Figure 1 In this embodiment, the outer periphery of the locking part 22 is hexagonal, so as to facilitate the screwing of the locking part 22. In other embodiments, the outer periphery of the locking part 22 can also be a polygon with an even number of sides, such as a quadrilateral, which can ensure that the tool is convenient to screw.

[0053] Further, as shown in Figure 4 The inner wall surface of the connection part 21 is annularly provided with a second sealing groove 212. The second sealing groove 212 is used to limit and clamp the second sealing member 5, and the second sealing member 5 is annularly abutted against the outer periphery of the valve to be tested 3. The above arrangement can effectively enhance the sealing property between the connection part 21 and the valve to be tested 3 by the second sealing member 5, so as to prevent the leakage of test medium and other adverse conditions during the test. In this embodiment, the second sealing member 5 can be an O-shaped sealing ring.

[0054] Optionally, the second sealing groove 212 is provided with one or two, and correspondingly, the second sealing member 5 can be provided with one or two. In other embodiments, the second sealing groove 212 and the second sealing member 5 can also be provided with three respectively. Here, no specific limitation is made to the number of the second sealing groove 212 and the second sealing member 5, as long as the sealing effect can be achieved and one second sealing member 5 is limited in one second sealing groove 212.

[0055] Further, as shown in Figure 4 A third sealing groove 213 is arranged around the outer circumferential surface of the connecting portion 21, and the third sealing groove 213 is used to limit and clamp the third sealing member 6, and the third sealing member 6 is annularly abutted against the inner wall surface of the base body 1. Through the third sealing member 6, the sealing performance between the connecting portion 21 and the base body 1 can be effectively enhanced, and the leakage of the test medium during the test can be prevented, and the test sealing environment of the valve to be tested 3 can be better ensured. In this embodiment, the third sealing member 6 can be an O-shaped sealing ring.

[0056] Embodiment Two

[0057] In this embodiment, an electromagnetic valve fixing structure is provided. As shown in Figure 5 and Figure 6 The electromagnetic valve fixing structure in this embodiment is basically the same as the electromagnetic valve fixing structure in Embodiment One, and the difference lies in the specific pressing manner of the first sealing member 4, the specific sealing arrangement manner between the base body 1 and the connecting portion 21, and the hollow upper cover 2 is not formed with the first step surface 211 in Embodiment One.

[0058] As shown in Figure 6 and Figure 7 Specifically, in this embodiment, the valve to be tested 3 can press the first sealing member 4 downward along the Z-axis, that is, in this embodiment, the first sealing member 4 is directly pressed by the movement of the valve to be tested 3.

[0059] Specifically, in this embodiment, part of the test portion of the valve to be tested 3 is respectively limited in the connecting portion 21 and the locking portion 22, and along the X-axis, the inner diameter of the connecting portion 21 is equal to the inner diameter of the locking portion 22, so that the first step surface 211 in Embodiment One is not formed.

[0060] Further, the base body 1 and the test portion of the valve to be tested 3 are threadedly connected, that is, when the test portion of the valve to be tested 3 is sequentially inserted into the locking portion 22, the connecting portion 21 and the base body 1 along the Z-axis and the valve to be tested 3 is screwed, the test portion of the valve to be tested 3 can be driven to rotate downward along the Z-axis, so that at least part of the test portion of the valve to be tested 3 is screwed into the base body 1, so as to lock the valve to be tested 3 and the base body 1, and realize the threaded connection between the valve to be tested 3 and the base body 1; and in the process of screwing, the test portion of the valve to be tested 3 can press the first sealing member 4 downward along the Z-axis, so as to press the first sealing member 4.

[0061] By threadedly connecting the valve to be tested 3 and the base body 1, the connection mode between the valve to be tested 3 and the base body 1 is simple and convenient, so as to improve the disassembly and assembly efficiency of the valve to be tested 3, and the first sealing member 4 can be directly pressed.

[0062] It is worth mentioning that in another embodiment, the first sealing member 4 can also be pressed downward along the Z-axis against the valve to be tested 3, and the hollow upper cover 2 can also be pressed downward along the Z-axis against the valve to be tested 3, so as to ensure that the pressing effect on the first sealing member 4 is better, and thus the sealing effect between the valve to be tested 3 and the base body 1 through the first sealing member 4 is doubly guaranteed.

[0063] Optionally, as shown in Figure 8 , a third step surface 15 is formed in the base body 1, and a fourth sealing groove 151 in the form of a ring is recessed on the third step surface 15, the fourth sealing groove 151 is used to limit and connect the fourth sealing member 7, and the fourth sealing member 7 is in the form of a ring and abuts against the bottom end surface of the connecting portion 21. Through the fourth sealing member 7, the sealing between the connecting portion 21 and the base body 1 can be effectively enhanced, and the leakage of the test medium during the test and other adverse conditions can be prevented, and the test sealing environment of the valve to be tested 3 is further guaranteed. In this embodiment, the fourth sealing member 7 can be an O-shaped sealing ring.

[0064] Optionally, in other embodiments, the third sealing member 6 and the fourth sealing member 7 can also be arranged between the base body 1 and the connecting portion 21 at the same time, so as to further increase the sealing effect between the connecting portion 21 and the base body 1.

[0065] Embodiment three

[0066] In this embodiment, an electromagnetic valve testing device is provided, which comprises a test table and the electromagnetic valve fixing structure in embodiment one; wherein the base body 1 is sealingly arranged on the test table, and the base body 1 is provided with a first communication hole 12 and a second communication hole 13 which are respectively in communication with the test table, and the test table is used to introduce a test medium into one of the first communication hole 12 and the second communication hole 13, that is, one of the first communication hole 12 and the second communication hole 13 is the inlet of the test medium, and the other is the outlet of the test medium. The test medium can be oil or gas, which is used to test the flow performance or pressure performance of the valve to be tested 3, and the test table is a common electromagnetic valve testing structure in the prior art.

[0067] Specifically, the valve to be tested 3 has an open state and a closed state, when the valve to be tested 3 is in the open state, the valve to be tested 3 is in communication with the first communication hole 12 and the second communication hole 13, so as to test the performance of the valve to be tested 3 in the open state; when the valve to be tested 3 is in the closed state, the valve to be tested 3 blocks the first communication hole 12 and the second communication hole 13, so as to test the performance of the valve to be tested 3 in the closed state. It should be noted that the base body 1 and the test table can be sealingly connected by bolt connection, clamping or insertion, etc., and in this embodiment, bolt connection is preferred.

[0068] Optionally, as shown in Figure 1 ,Figure 2 、 Figure 5 and Figure 6 As shown in the figures, the electromagnetic valve fixing structure further comprises a plug (not shown in the figures), the base body 1 is provided with a plurality of process holes 14, the plurality of process holes 14 are respectively communicated with the first communication hole 12 and the second communication hole 13, and the plurality of process holes 14 are sealed by the plug. The process holes 14 are arranged to ensure the smooth communication between the first communication hole 12 and the second communication hole 13, and ensure that no processing and use interference occurs between the first communication hole 12 and the second communication hole 13.

[0069] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is not necessary and impossible to enumerate all the implementation modes. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. A solenoid valve fixing structure characterized by comprising: The utility model relates to a valve testing device, comprising: a base assembly, including a base body (1) and a first sealing element (4), the first sealing element (4) is annularly arranged in the base body (1), the test part of the valve (3) to be tested is inserted into the base body (1) and contacts the first sealing element (4); a hollow upper cover (2) is sleeved on part of the valve (3) to be tested and is connected with the base body (1); wherein the hollow upper cover (2) can press downward along the Z axis on the valve (3) to be tested to compress the first sealing element (4), and / or the valve (3) to be tested can compress the first sealing element (4) downward along the Z axis.

2. The solenoid valve fixing structure according to claim 1, characterized in that, The material of the first sealing element (4) is red copper, and the base body (1) is provided with a first sealing groove (111) in the form of a ring, and the first sealing element (4) is accommodated in the first sealing groove (111).

3. The electromagnetic valve fixing structure according to claim 1, characterized by The inner wall of the hollow upper cover (2) is formed with a first step surface (211), and the outer wall of the valve (3) to be tested is formed with a second step surface (31), and the first step surface (211) is pressed downward along the Z axis on the second step surface (31).

4. The solenoid valve fixing structure according to claim 3, characterized in that The hollow upper cover (2) comprises: a connecting portion (21), one end of the connecting portion (21) is connected with the base body (1), and part of the test part of the valve (3) to be tested is limited in the connecting portion (21); a locking portion (22) connected to the other end of the connecting portion (21) along the X axis, the inner diameter of the connecting portion (21) is greater than the inner diameter of the locking portion (22), so that the connecting position between the connecting portion (21) and the locking portion (22) forms the first step surface (211), and the locking portion (22) is used for accommodating part of the valve stem of the valve (3) to be tested.

5. The solenoid valve fixing structure according to claim 4, characterized in that The connecting portion (21) is threadedly connected with the base body (1).

6. The solenoid valve fixing structure according to claim 5, characterized in that The outer periphery of the locking portion (22) is polygonal, and rotating the locking portion (22) can drive the connecting portion (21) to threadedly rotate downward along the Z axis into the base body (1), so as to lock the connecting portion (21) and the base body (1), and can drive the first step surface (211) to press downward along the Z axis on the second step surface (31).

7. The solenoid valve fixing structure according to any one of claims 4 to 6, characterized in that, The inner wall surface of the connecting portion (21) is annularly provided with a second sealing groove (212), the second sealing groove (212) is used for limiting and clamping a second sealing element (5), and the second sealing element (5) is annularly abutted on the outer periphery of the valve (3) to be tested.

8. The solenoid valve fixing structure according to any one of claims 4 to 6, characterized in that, The outer periphery of the connecting portion (21) is annularly provided with a third sealing groove (213), the third sealing groove (213) is used for limiting and clamping a third sealing element (6), and the third sealing element (6) is annularly abutted on the inner wall surface of the base body (1).

9. The solenoid valve fixing structure according to any one of claims 1 to 6, characterized in that, The base body (1) is threadedly connected with the test part of the valve (3) to be tested.

10. Electromagnetic valve testing device, characterized in that The test bench and the electromagnetic valve fixing structure as claimed in any one of claims 1-9 are included, the base body (1) is sealed on the test bench, the first communication hole (12) and the second communication hole (13) are arranged in the base body (1) and are communicated with the test bench respectively, and the test bench is used for introducing a test medium into one of the first communication hole (12) and the second communication hole (13). Wherein, the valve to be tested (3) has an open state and a closed state, when the valve to be tested (3) is in the open state, the valve to be tested (3) is in conduction with the first communication hole (12) and the second communication hole (13); when the valve to be tested (3) is in the closed state, the valve to be tested (3) blocks the first communication hole (12) and the second communication hole (13).

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