Electromagnetic ball valve

Abstract

The utility model relates to an electromagnetic ball valve. The electromagnetic ball valve at least comprises an electromagnet, a transmission lever, a valve body, a valve element and an induction type stroke sensor. The electromagnet is constructed to be arranged on the side portion of the valve body, and the transmission lever is arranged at the first end of the valve body and constructed to be controlled by movement of the output end of the electromagnet to rotate so as to drive the valve element to move at least between a first position and a second position in the valve body in the extending direction of the valve body; the induction type stroke sensor is arranged at the second end of the valve body and comprises a detection end and an induction part, the detection end is constructed to move along with the valve element in the extending direction of the valve body, and the induction part is constructed to trigger a signal at least when the detection end is located at the first position or the second position. According to the electromagnetic ball valve, the position state of the valve element can be effectively obtained through the induction type stroke sensor, so that the control unit can conveniently control through the position state of the valve element, and the system safety protection effect is achieved.

Description

Technical Field

[0001] The present disclosure relates to the field of hydraulic equipment, and more precisely, to an electromagnetic ball valve. Background Art

[0002] During the commutation operation of a conventional electromagnetic ball valve, since the working position of the valve core cannot be determined and detected, when the valve core malfunctions, without detection and early warning, the subsequent logic control continues to execute according to the instruction, which is very likely to cause equipment damage and even may cause personnel to be injured by the equipment, affecting the user's safety in use. Summary of the Utility Model

[0003] The present disclosure provides an electromagnetic ball valve to solve the problems existing in the prior art.

[0004] According to a first aspect of the present disclosure, there is provided an electromagnetic ball valve, including an electromagnet, a transmission lever, a valve body, a valve core, and an inductive stroke sensor;

[0005] The electromagnet is configured to be disposed at a side portion of the valve body. The transmission lever is disposed at a first end of the valve body and is configured to rotate under the control of the movement of the output end of the electromagnet, so as to drive the valve core to move in the valve body along the extending direction of the valve body between at least a first position and a second position;

[0006] The inductive stroke sensor is disposed at a second end of the valve body and includes a detection end and an induction portion. The detection end is configured to move along the extending direction of the valve body with the valve core, and the induction portion is configured to trigger a signal when the detection end is at least in the first position or the second position.

[0007] In an embodiment of the present disclosure, one of the detection end and the induction portion is a coil, and the other is a magnet. The inductive stroke sensor is configured to obtain the position of the detection end by acquiring the electromagnetic induction electromotive force between the coil and the magnet.

[0008] In an embodiment of the present disclosure, the inductive stroke sensor includes a voltage-resistant portion and a feedback portion. The voltage-resistant portion and the feedback portion are configured to be relatively slidably connected, and both the detection end and the induction portion are located in an installation cavity surrounded by the voltage-resistant portion and the feedback portion. The detection end is disposed in the voltage-resistant portion, and the induction portion is disposed on the feedback portion.

[0009] In an embodiment of the present disclosure, it further includes a detection rod. The detection rod abuts against the second end of the valve core, and the detection rod is configured to abut against the voltage-resistant portion to drive the detection end to move.

[0010] In an embodiment of the present disclosure, a return spring is further included. The detection rod includes a rod body and an abutting portion provided at the first end of the rod body; the first end of the return spring abuts against the abutting portion of the detection rod, and the second end is configured to abut against the inner wall of the second end of the valve body cavity.

[0011] In an embodiment of the present disclosure, a push rod is further included. The push rod is configured such that its first end abuts against the transmission lever and its second end abuts against the valve core.

[0012] In an embodiment of the present disclosure, the moving direction of the output end of the electromagnet is configured to be perpendicular to the extending direction of the valve body. The transmission lever includes a body portion integrally shaped like an L and a transmission portion fixedly provided on the body portion; the body portion is configured to be driven by the movement of the output end of the electromagnet to drive the transmission portion to rotate; the contour of the transmission portion is spherical, and it is configured to push the push rod to move along the extending direction of the valve body during the rotation process.

[0013] In an embodiment of the present disclosure, a pushing portion is provided on the output end of the electromagnet. The contour of the pushing portion is spherical, and it is configured to push the transmission lever to rotate during the movement controlled by the output end of the electromagnet.

[0014] In an embodiment of the present disclosure, in the inner cavity of the valve core, a first passage is provided at a position on the first side of the valve core, and a second passage is provided at a position on the second side of the valve core. A third passage is provided on the inner cavity of the valve body corresponding to the position of the valve core;

[0015] The valve core is configured such that when it is in the first position, the first passage is disconnected from the third passage, and when it is in the second position, the second passage is disconnected from the third passage.

[0016] In an embodiment of the present disclosure, the valve core is configured to be spherical;

[0017] A first pointed portion is provided adjacent to the first side of the valve core, and a second pointed portion is provided adjacent to the second side of the valve core. The valve core is configured to abut against the first pointed portion to disconnect the first passage from the third passage; when in the second position, it abuts against the second pointed portion to disconnect the second passage from the third passage.

[0018] The present disclosure provides an electromagnetic ball valve, which at least includes an electromagnet, a transmission lever, a valve body, a valve core and an inductive stroke sensor; the electromagnet is configured to be arranged at the side of the valve body, the transmission lever is arranged at the first end of the valve body, and is configured to rotate under the control of the movement of the output end of the electromagnet, so as to drive the valve core to move at least between a first position and a second position along the extension direction of the valve body in the valve body; the inductive stroke sensor is arranged at the second end of the valve body, and includes a detection end and an induction part, the detection end is configured to move along the extension direction of the valve body with the valve core, and the induction part is configured to trigger a signal at least when the detection end is at the first position or the second position.

[0019] During the working process of the electromagnetic ball valve of the present disclosure, when the output end of the electromagnet moves, it can drive the transmission lever to rotate, and then drive the valve core to move at least between a first position and a second position along the extension direction of the valve body in the valve body. The detection end of the inductive stroke sensor can move along the extension direction of the valve body with the valve core, and the induction part triggers a signal at least when the detection end is at the first position or the second position.

[0020] In this way, the electromagnetic ball valve of the present disclosure can effectively obtain the position state of the valve core by using the inductive stroke sensor, so that it is convenient for the control unit to control through the position state of the valve core, playing a role in protecting the safety of the system.

[0021] Specifically, after the electromagnet in the electromagnetic ball valve of the present disclosure is powered on, it drives the valve core to move in the valve body towards the target position through the transmission lever. After the valve core moves to the target position, it can effectively trigger the inductive stroke sensor to send out a corresponding signal to indicate that the valve core has reached the target position, facilitating the subsequent control logic to continue; while when the valve core does not move to the target position normally, or the inductive stroke sensor does not detect that the valve core has reached the target position, the inductive stroke sensor will not send out a corresponding signal, and the subsequent control logic will not continue, achieving the effect of ensuring the safety of the equipment.

[0022] For example, when the electromagnetic ball valve of the present disclosure is applied to various equipment such as safety doors, safety valves, and reversing valves, it can ensure that the equipment operates normally only when the safety door and the safety valve are closed, avoiding subsequent operations by the staff when the equipment has not completed the switching operation normally, resulting in equipment damage or even personal injury.

[0023] Through the following detailed description of the exemplary embodiments of the present disclosure with reference to the accompanying drawings, other features and advantages of the present disclosure will become clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings incorporated in the specification and constituting a part of the specification illustrate embodiments of the present disclosure and, together with the description, are used to explain the principles of the present disclosure.

[0025] Figure 1It is a cross-sectional structure diagram of an electromagnetic ball valve provided by an embodiment of the present disclosure;

[0026] Figure 2 It is a cross-sectional view of an inductive stroke sensor provided by an embodiment of the present disclosure;

[0027] Figures 1 to 2 The corresponding relationship between the names of the components and the reference numerals in the figure is as follows:

[0028] 10. Electromagnet; 11. Output end; 12. Pushing part;

[0029] 20. Transmission lever; 21. Body part; 22. Transmission part;

[0030] 30. Valve body; 31. First sharp corner part; 32. Second sharp corner part;

[0031] 40. Valve core;

[0032] 50. Inductive stroke sensor; 51. Detection end; 52. Inductive part;

[0033] 53. Pressure-resistant part; 54. Feedback part; 55. Installation cavity;

[0034] 60. Detection rod; 61. Contact part; 62. Rod body;

[0035] 70. Push rod;

[0036] 81. First passage; 82. Second passage; 83. Third passage;

[0037] 90. Return spring.

[0038] A: First end;

[0039] B: Second end. Detailed implementation manners

[0040] Now, various exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements of the components and steps set forth in these embodiments, the numerical expressions and values do not limit the scope of the present disclosure. In all the examples shown and discussed here, any specific value should be construed as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0041] Numerous specific details are set forth in the following description to provide a thorough understanding of the present disclosure. However, the present disclosure may be implemented in many other ways different from those described herein, and those skilled in the art may make similar extensions without departing from the connotation of the present disclosure. Therefore, the present disclosure is not limited by the specific implementations disclosed below. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the specification.

[0042] The terms used in one or more embodiments of the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit one or more embodiments of the present disclosure. The singular forms "a", "the", and "said" used in one or more embodiments of the present disclosure and the appended claims are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" used in one or more embodiments of the present disclosure refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0043] It should be understood that although the terms first, second, etc. may be used in one or more embodiments of the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of one or more embodiments of the present disclosure, the first may also be referred to as the second, and similarly, the second may also be referred to as the first. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to determining". In this document, "up", "down", "front", "back", "left", "right", etc. are only used to represent the relative positional relationship between relevant parts and do not limit the absolute positions of these relevant parts. In this document, "equal", "same", etc. are not strict mathematical and / or geometric limitations and also include errors that can be understood by those skilled in the art and are allowed in manufacturing or using, etc. Unless otherwise specified, the numerical ranges in this document include not only the entire range within its two endpoints but also several sub-ranges included therein.

[0044] The present disclosure provides an electromagnetic ball valve, which at least includes an electromagnet, a transmission lever, a valve body, a valve core, and an inductive stroke sensor; the electromagnet is configured to be disposed at the side of the valve body, the transmission lever is disposed at the first end of the valve body and is configured to rotate under the control of the movement of the output end of the electromagnet, so as to drive the valve core to move in the valve body along the extending direction of the valve body at least between a first position and a second position; the inductive stroke sensor is disposed at the second end of the valve body and includes a detection end and an induction part, the detection end is configured to move along the extending direction of the valve body with the valve core, and the induction part is configured to trigger a signal at least when the detection end is at the first position or the second position.

[0045] During the operation of the electromagnetic ball valve of the present disclosure, when the output end of the electromagnet moves, it can drive the transmission lever to rotate, and then drive the valve core to move in the valve body along the extension direction of the valve body at least between a first position and a second position. The detection end of the inductive stroke sensor can move along the extension direction of the valve body with the valve core, and the induction part triggers a signal at least when the detection end is in the first position or the second position.

[0046] In this way, the electromagnetic ball valve of the present disclosure can effectively obtain the position state of the valve core by using the inductive stroke sensor, so that the control unit can control through the position state of the valve core, playing a role in protecting the safety of the system.

[0047] Specifically, after the electromagnet in the electromagnetic ball valve of the present disclosure is energized, it drives the valve core to move in the valve body towards the target position through the transmission lever. After the valve core moves to the target position, it can effectively trigger the inductive stroke sensor to send out a corresponding signal to indicate that the valve core has reached the target position, facilitating the subsequent control logic to continue; when the valve core does not move to the target position normally, or the inductive stroke sensor does not detect that the valve core has reached the target position, the inductive stroke sensor will not send out a corresponding signal, and the subsequent control logic will not continue, achieving the effect of ensuring the safety of the equipment.

[0048] For example, when the electromagnetic ball valve of the present disclosure is applied to various equipment such as safety doors, safety valves, and reversing valves, it can ensure that the equipment operates normally only when the safety door and the safety valve are closed, avoiding subsequent operations by staff when the equipment has not completed the switching operation normally, resulting in equipment damage or even personal injury.

[0049] For ease of understanding, the following refers to Figures 1 to 2 and, in combination with an embodiment, details the specific structure and working principle of the electromagnetic ball valve of the present disclosure.

[0050] As Figure 1 and Figure 2 shown, the present disclosure provides an electromagnetic ball valve, which at least includes an electromagnet 10, a transmission lever 20, a valve body 30, a valve core 40, and an inductive stroke sensor 50; the electromagnet 10 is configured to be disposed on the side of the valve body 30, the transmission lever 20 is disposed at the first end of the valve body 30, and is configured to rotate under the control of the movement of the output end 11 of the electromagnet 10 to drive the valve core 40 to move in the valve body 30 along the extension direction of the valve body 30 at least between a first position and a second position; the inductive stroke sensor 50 is disposed at the second end of the valve body 30, and includes a detection end 51 and an induction part 52, the detection end 51 is configured to move along the extension direction of the valve body 30 with the valve core 40, and the induction part 52 is configured to trigger a signal at least when the detection end 51 is in the first position or the second position.

[0051] During the operation of the electromagnetic ball valve of the present disclosure, when the output end 11 of the electromagnet 10 moves, it can drive the transmission lever 20 to rotate, and then drive the valve core 40 to move at least between a first position and a second position along the extension direction of the valve body 30 within the valve body 30. The detection end 51 of the inductive stroke sensor 50 can move along the extension direction of the valve body 30 with the valve core 40, and the induction part 52 triggers a signal at least when the detection end 51 is in the first position or the second position.

[0052] In this way, the electromagnetic ball valve of the present disclosure can effectively obtain the position state of the valve core 40 by using the inductive stroke sensor 50, so that it is convenient for the control unit to control through the position state of the valve core 40, playing a role in protecting the safety of the system.

[0053] Specifically, after the electromagnet 10 in the electromagnetic ball valve of the present disclosure is energized, it drives the valve core 40 to move towards the target position within the valve body 30. After the valve core 40 moves to the target position, it can effectively trigger the inductive stroke sensor 50 to send out a corresponding signal to indicate that the valve core 40 has reached the target position, facilitating the continuation of the subsequent control logic; and when the valve core 40 does not move to the target position normally, or the inductive stroke sensor 50 does not detect that the valve core 40 has reached the target position, the inductive stroke sensor 50 will not send out a corresponding signal, and the subsequent control logic will not continue, achieving the effect of ensuring the safety of the equipment.

[0054] For example, when the electromagnetic ball valve of the present disclosure is applied to various devices such as safety doors, safety valves, and reversing valves, it can ensure that the device operates normally only when the safety door and the safety valve are closed, avoiding subsequent operations by the staff when the device has not completed the switching operation normally, resulting in equipment damage or even personal injury.

[0055] In an embodiment of the present disclosure, one of the detection end 51 and the induction part 52 is a coil, and the other is a magnet. The inductive stroke sensor 50 is configured to obtain the position of the detection end 51 by acquiring the electromagnetic induction electromotive force between the coil and the magnet. That is, the inductive stroke sensor 50 of the present disclosure uses the principle of electromagnetic induction to detect the position state of the valve core 40, without the need for the detection end 51 and the induction part 52 to be in contact with each other. This can not only effectively improve the reliability of the inductive stroke sensor 50 of the present disclosure and extend the service life of the inductive stroke sensor 50 of the present disclosure, but also, due to the small magnetic hysteresis of the inductive stroke sensor 50 of the present disclosure, improve the working frequency response of the inductive stroke sensor 50 and ensure good repeatability of the inductive stroke sensor 50.

[0056] Specifically, as Figure 2As shown, in an embodiment of the present disclosure, the inductive stroke sensor 50 includes a pressure-resistant part 53 and a feedback part 54. The pressure-resistant part 53 and the feedback part 54 are configured to be slidably connected relative to each other, and the detection end 51 and the induction part 52 are both located in the installation cavity 55 formed by the pressure-resistant part 53 and the feedback part 54. The detection end 51 is arranged in the pressure-resistant part 53, and the induction part 52 is arranged on the feedback part 54. In the inductive stroke sensor 50 of the present disclosure, since the detection end 51 and the induction part 52 are both located in the installation cavity 55, it can effectively prevent other substances such as hydraulic oil from entering the installation cavity 55 and affecting the normal operation of the inductive stroke sensor 50, thereby improving the available operating temperature range of the inductive stroke sensor 50. Specifically, the protection levels of the pressure-resistant part 53 and the feedback part 54 are set to IP67, so as to ensure that the electromagnetic ball valve of the present disclosure can operate normally in an outdoor spraying environment.

[0057] And since the pressure-resistant part 53 and the feedback part 54 are of a split structure, the pressure-resistant part 53 is used to cooperate with the valve core 40, which facilitates the inductive stroke sensor 50 of the present disclosure to adapt to different models of electromagnetic ball valves. It can be understood that, in order to ensure the pressure-resistant performance of the pressure-resistant part 53, the pressure-resistant part 53 can select a relevant structure that can withstand at least a maximum pressure of 35 MPa.

[0058] Specifically, the inductive stroke sensor 50 of the present disclosure selects an NPN (normally closed) or PNP (normally open) output mode, which is not limited herein. In order to improve the reliability of the inductive stroke sensor 50 of the present disclosure, an inductive stroke sensor 50 with protection functions such as polarity, overload, and short-circuit transient can be selected.

[0059] As Figure 1 shown, in an embodiment of the present disclosure, the electromagnetic ball valve of the present disclosure further includes a detection rod 60. The detection rod 60 abuts against the second end of the valve core 40, and the detection rod 60 is configured to abut against the pressure-resistant part 53 to drive the detection end 51 to move. That is, during the operation of the electromagnetic ball valve of the present disclosure, when the valve core 40 moves in the valve body 30 along the extension direction of the valve body 30, it can drive the detection rod 60 to move, and then drive the pressure-resistant part 53 and the detection end 51 to move, so as to facilitate the inductive stroke sensor 50 to obtain the position of the valve core 40.

[0060] As Figure 1As shown, in one embodiment of the present disclosure, the electromagnetic ball valve of the present disclosure further includes a return spring 90. The detection rod 60 includes a rod body 62 and an abutting portion 61 provided at the first end of the rod body 62. The first end of the return spring 90 abuts against the abutting portion 61 of the detection rod 60, and the second end is configured to abut against the inner wall of the second end of the valve body 30 cavity. That is, during the operation of the electromagnetic ball valve of the present disclosure, when the electromagnet 10 is powered off, the return spring 90 drives the valve core 40 to return to the initial position by pushing the abutting portion 61 of the detection rod 60. Moreover, since the first end of the return spring 90 abuts against the abutting portion 61 of the detection rod 60, it can ensure the synchronous movement of the detection rod 60 and the return spring 90, thereby facilitating the return spring 90 to drive the detection rod 60, the pressure-resistant portion 53 and the detection end 51 to return to the initial position after the electromagnet 10 is powered off.

[0061] As Figure 1 shown, in one embodiment of the present disclosure, the push rod 70 is configured such that its first end abuts against the transmission lever 20 and its second end abuts against the valve core 40. That is, during the operation of the electromagnetic ball valve of the present disclosure, when the output end 11 of the electromagnet 10 moves, it can drive the transmission lever 20 to rotate. When the transmission lever 20 rotates, it can drive the push rod 70 to move along the extending direction of the valve body 30, thereby driving the valve core 40 to move at least between a first position and a second position along the extending direction of the valve body 30 within the valve body 30.

[0062] Specifically, as Figure 1 shown, in one embodiment of the present disclosure, the moving direction of the output end 11 of the electromagnet 10 is configured to be perpendicular to the extending direction of the valve body 30. The transmission lever 20 includes a body portion 21 having an overall L shape and a transmission portion 22 fixedly provided on the body portion 21. The body portion 21 is configured to be driven by the movement of the output end 11 of the electromagnet 10 to drive the transmission portion 22 to rotate. The contour of the transmission portion 22 is spherical, and it is configured to push the push rod 70 to move along the extending direction of the valve body 30 during the rotation process.

[0063] During the operation of the electromagnetic ball valve of the present disclosure, when the output end 11 of the electromagnet 10 moves, it can push the body portion 21 of the transmission lever 20 to rotate, and then drive the transmission portion 22 to rotate. And because the contour of the transmission portion 22 is spherical, it can always keep abutting against the push rod 70 during the rotation process of the transmission portion 22, thereby pushing the push rod 70 to move along the extending direction of the valve body 30. Since the moving direction of the output end 11 of the electromagnet 10 is perpendicular to the extending direction of the valve body 30 and the overall contour of the transmission lever 20 is L-shaped, it is convenient to arrange the electromagnet 10 on the side of the valve body 30, which can effectively reduce the overall extending length of the electromagnetic ball valve of the present disclosure.

[0064] It can be understood that in an embodiment of the present disclosure, the electromagnet 10 can adopt a multi-layer winding technology, thereby improving the thrust of the electromagnet 10 and facilitating the quick commutation of the spool 40 of the present disclosure. Specifically, the commutation time of the spool 40 of the present disclosure can be less than 25 ms; the electromagnet 10 can also adopt a low-temperature-rise coil process to ensure that the electromagnet 10 can operate normally in harsh environments.

[0065] As Figure 1 shown, in an embodiment of the present disclosure, a pushing portion 12 is provided on the output end 11 of the electromagnet 10. The contour of the pushing portion 12 is spherical and is configured to drive the transmission lever 20 to rotate during the movement controlled by the output end 11 of the electromagnet 10. Since the contour of the pushing portion 12 is spherical, during the telescopic process of the electromagnet 10, the pushing portion 12 can always remain in contact with the main body portion 21 of the transmission lever 20, thereby driving the transmission lever 20 to rotate.

[0066] As Figure 1 shown, in an embodiment of the present disclosure, in the inner cavity of the spool 40, a first passage 81 is provided at a position on the first side of the spool 40, and a second passage 82 is provided at a position on the second side of the spool 40. A third passage 83 is provided on the inner cavity of the valve body 30 corresponding to the position of the spool 40; when the spool 40 is configured to be in the first position, the first passage 81 is disconnected from the third passage 83, and when in the second position, the second passage 82 is disconnected from the third passage 83.

[0067] Specifically, during the working process of the electromagnetic ball valve of the present disclosure, after the electromagnet 10 is energized, it can drive the transmission lever 20 to rotate clockwise, and drive the spool 40 to move along the extending direction of the valve body 30 in the valve body 30 to the second position through the transmission lever 20. When the spool 40 is in the second position, the second passage 82 can be disconnected from the third passage 83, and the third passage 83 is then communicated with the first passage 81. After the electromagnet 10 is powered off, the return spring 90 drives the spool 40 to return to the first position through the abutting portion 61 that pushes the detection rod 60. When the spool 40 is in the first position, the first passage 81 can be disconnected from the third passage 83, and the third passage 83 is then communicated with the second passage 82; during the process of the spool 40 returning to the first position, it can also drive the transmission lever 20 to rotate counterclockwise, driving the push rod 70, the detection rod 60, and the pressure-resistant portion 53 and the detection end 51 to return to the first position.

[0068] As Figure 1As shown, in an embodiment of the present disclosure, the valve core 40 is configured to be spherical; a first sharp corner portion 31 is provided at a position adjacent to the first side of the valve core 40, and a second sharp corner portion 32 is provided at a position adjacent to the second side of the valve core 40, and the valve core 40 is configured to abut against the first sharp corner portion 31 to disconnect the first passage 81 from the third passage 83; when in the second position, it abuts against the first sharp corner portion 31 to disconnect the second passage 82 from the third passage 83. Thus, since the valve core 40 is spherical, when the valve core 40 abuts against the first sharp corner portion 31, the first passage 81 can be disconnected from the third passage 83, and when the valve core 40 abuts against the first sharp corner portion 31, the second passage 82 can be disconnected from the third passage 83, thereby effectively achieving the purpose of commutation.

[0069] The embodiments of the present disclosure have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other ordinary skill in the art in the technical field to understand the disclosed embodiments. The scope of the present disclosure is defined by the appended claims.

Claims

1. An electromagnetic ball valve, characterized in that: It comprises an electromagnet (10), a transmission lever (20), a valve body (30), a valve core (40) and an inductive stroke sensor (50); The electromagnet (10) is configured to be arranged on a side of the valve body (30), the transmission lever (20) is arranged at a first end of the valve body (30), and is configured to rotate under the control of the movement of the output end (11) of the electromagnet (10), so as to drive the valve core (40) to move in the valve body (30) along the extension direction of the valve body (30) at least between a first position and a second position; The inductive stroke sensor (50) is arranged at the second end of the valve body (30), and comprises a detection end (51) and a sensing portion (52), wherein the detection end (51) is configured to move along with the valve core (40) along the extension direction of the valve body (30), and the sensing portion (52) is configured to trigger a signal at least when the detection end (51) is in the first position or the second position.

2. The electromagnetic ball valve according to claim 1, characterized in that: One of the detection end (51) and the induction part (52) is a coil, and the other is a magnet. The inductive stroke sensor (50) is constructed to obtain the position of the detection end (51) by obtaining the electromagnetic induced electromotive force between the coil and the magnet.

3. The electromagnetic ball valve according to claim 2, characterized in that: The inductive stroke sensor (50) comprises a pressure-resistant part (53) and a feedback part (54), wherein the pressure-resistant part (53) and the feedback part (54) are configured to be relatively slidably connected, and the detection end (51) and the sensing part (52) are both located in an installation cavity (55) surrounded by the pressure-resistant part (53) and the feedback part (54), and the detection end (51) is arranged in the pressure-resistant part (53), and the sensing part (52) is arranged on the feedback part (54).

4. The electromagnetic ball valve according to claim 3, characterized in that: It also includes a detection rod (60), the detection rod (60) abuts against the second end of the valve core (40), and the detection rod (60) is configured to abut against the pressure-resistant portion (53) to drive the detection end (51) to move.

5. The electromagnetic ball valve according to claim 4, characterized in that: It also includes a return spring (90), and the detection rod (60) includes a rod body (62) and an abutment portion (61) arranged at the first end of the rod body (62); the first end of the return spring (90) abuts against the abutment portion (61) of the detection rod (60), and the second end is constructed to abut against the cavity wall of the second end of the inner cavity of the valve body (30).

6. The electromagnetic ball valve according to any one of claims 1 to 5, characterized in that: It also includes a push rod (70), wherein the push rod (70) is configured such that a first end thereof abuts against the transmission lever (20), and a second end thereof abuts against the valve core (40).

7. The electromagnetic ball valve according to claim 6, characterized in that: The moving direction of the output end (11) of the electromagnet (10) is constructed to be perpendicular to the extension direction of the valve body (30); the transmission lever (20) comprises a main body (21) which is L-shaped as a whole and a transmission part (22) fixedly arranged on the main body (21); the main body (21) is constructed to be controlled by the movement of the output end (11) of the electromagnet (10) to drive the transmission part (22) to rotate; the contour of the transmission part (22) is spherical, and is constructed to push the push rod (70) to move along the extension direction of the valve body (30) during the rotation process.

8. The electromagnetic ball valve according to claim 7, characterized in that: A pushing portion (12) is provided on the output end (11) of the electromagnet (10); the pushing portion (12) has a spherical profile and is configured to push the transmission lever (20) to rotate while being controlled by the movement of the output end (11) of the electromagnet (10).

9. The electromagnetic ball valve according to any one of claims 1 to 5, characterized in that: In the inner cavity of the valve core (40), a first passage (81) is provided at a position on a first side of the valve core (40), a second passage (82) is provided at a position on a second side of the valve core (40), and a third passage (83) is provided on the inner cavity of the valve body (30) at a position corresponding to the valve core (40); The valve core (40) is configured to disconnect the first passage (81) from the third passage (83) when the valve core is in a first position, and disconnect the second passage (82) from the third passage (83) when the valve core is in a second position.

10. The electromagnetic ball valve according to claim 9, characterized in that: The valve core (40) is configured to be spherical; A first pointed corner (31) is provided at a position adjacent to the first side of the valve core (40), and a second pointed corner (32) is provided at a position adjacent to the second side of the valve core (40), and the valve core (40) is constructed to abut against the first pointed corner (31) to disconnect the first passage (81) from the third passage (83); when in the second position, the valve core (40) abuts against the second pointed corner (32) to disconnect the second passage (82) from the third passage (83).

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