Electromagnetic reversing valve with manual reversing function

Abstract

The utility model provides an electromagnetic reversing valve with a manual reversing function. The electromagnetic reversing valve with the manual reversing function at least comprises a valve body, a valve element, a transmission part, a first driving mechanism and a second driving mechanism. Wherein a valve cavity and a mounting cavity located on the first side of the valve cavity are formed in the valve body, and the valve element is arranged in the valve cavity; the first end of the transmission part is located in the mounting cavity and provided with a transmission end, and the second end is located in the valve cavity and connected with the valve element so as to drive the valve element to move in the valve cavity. A first push rod of the first driving mechanism is arranged in the mounting cavity, the first end is in transmission connection with the output end of the first electromagnet, and the second end abuts against the transmission part so as to push the transmission part to move in the second direction under the action of the first electromagnet; a sliding part of the second driving mechanism is arranged in the mounting cavity and freely slides relative to the first push rod, the sliding part drives the transmission part to move in the first direction and the second direction under the action of the driving part, and the driving part drives the sliding part to move in the mounting cavity under the action of external force.

Description

Technical Field

[0001] The present disclosure relates to the field of hydraulic equipment, and more precisely, to an electromagnetic directional control valve with manual commutation. Background Art

[0002] An electromagnetic directional control valve with manual commutation is an industrial device controlled by electromagnetism, commonly used in industrial control systems to adjust the direction, flow rate, speed, and other parameters of a medium. Common electromagnetic directional control valves with manual commutation include a valve body, a spool, an electromagnet, and a return spring. In the case of no power supply, the spool is held at the middle position or the initial position by the return spring. After being powered on, the thrust of the electromagnet acts on the spool through a push rod and pushes it from the stationary position to the working position. However, the existing electromagnetic directional control valve with manual commutation can only use current to operate the spool to commutate, which is very inconvenient when manual operation is unavailable. While a manual directional control valve can only be operated manually, resulting in a large labor intensity of operation. Summary of the Utility Model

[0003] The present disclosure provides a solution to the problems existing in the prior art.

[0004] According to a first aspect of the present disclosure, there is provided an electromagnetic directional control valve with manual commutation, including:

[0005] A valve body, in which a valve cavity and an installation cavity located on a first side of the valve cavity are provided;

[0006] A spool, which is arranged in the valve cavity and is configured to move in the valve cavity in a first direction and a second direction;

[0007] A transmission part, which is configured such that a first end is located in the installation cavity and is provided with a transmission end, and a second end is located in the valve cavity and is connected to the spool to drive the spool to move in the valve cavity;

[0008] A first driving mechanism, which includes a first push rod and a first electromagnet. The first push rod is arranged in the installation cavity and is configured such that a first end is in transmission connection with an output end of the first electromagnet, and a second end abuts against the transmission part to push the transmission part to move in the second direction under the action of the first electromagnet;

[0009] A second driving mechanism, which includes a sliding part and a driving part. The sliding part is arranged in the installation cavity and is configured to slide freely relative to the first push rod. The sliding part is configured to drive the transmission part to move in the first direction and the second direction under the action of the driving part, and the driving part is configured to drive the sliding part to move in the installation cavity under the action of an external force.

[0010] In one embodiment of the present disclosure, a third driving mechanism is further included. The third driving mechanism is disposed at the second end of the valve body and includes a second push rod and a second electromagnet. The second push rod is configured to push the transmission part in a first direction under the action of the second electromagnet.

[0011] In one embodiment of the present disclosure, an oil inlet chamber, an oil return chamber, a first working chamber, and a second working chamber are provided in the valve body. The valve core is configured to move between a first position, a second position, and a third position within the valve chamber. When the valve core is in the first position, the oil inlet chamber is not in communication with the first working chamber or the second working chamber; when the valve core is in the second position, the oil inlet chamber is in communication with the first working chamber, and the oil return chamber is in communication with the second working chamber; when the valve core is in the third position, the oil inlet chamber is in communication with the second working chamber, and the oil return chamber is in communication with the first working chamber.

[0012] In one embodiment of the present disclosure, a sliding groove is provided on the sliding part. The transmission end is configured to be located within the sliding groove. The sliding part is configured to drive the transmission part in a first direction and a second direction through a first end face and a second end face of the sliding groove under the action of the driving part.

[0013] In one embodiment of the present disclosure, a through hole is provided inside the sliding part. A sliding groove is provided inside the through hole. The inner diameter of the sliding groove is configured to be larger than the inner diameter of the through hole;

[0014] The first push rod is configured to be inserted into the first end of the through hole;

[0015] The transmission part includes a body and the transmission end provided on the body; the transmission end and the first end of the body are configured to be inserted into the second end of the through hole and to cooperate the transmission end with the sliding groove.

[0016] In one embodiment of the present disclosure, inside the valve chamber, a first spring and a second spring are respectively provided on both sides of the valve core. The first spring is configured to abut against the inner wall of the first end of the valve body; the second spring is configured to abut against the inner wall of the second end of the valve body; the first spring and the second spring are configured to drive the valve core to return to the initial position.

[0017] In one embodiment of the present disclosure, a spring seat is provided at the first end of the installation chamber. A third spring and a fourth spring are respectively provided on both sides of the sliding part. The third spring is configured to abut against the spring seat. The first push rod is configured to penetrate through the spring seat; the fourth spring is configured to abut against the inner wall of the second end of the installation chamber; the third spring and the fourth spring are configured to drive the sliding part to return to the initial position.

[0018] In one embodiment of the present disclosure, a mating groove is provided on the outer peripheral surface of the sliding portion; a ball head lever is provided at the end of the driving portion, and the ball head lever is engaged with the mating groove on the sliding portion through a spherical outer contour; the driving portion is configured to drive the sliding portion to move through the ball head lever when rotated under the control of an external force.

[0019] In one embodiment of the present disclosure, the driving portion further includes an operating rod, the operating rod is in transmission connection with the ball head lever, and the operating rod is configured to drive the driving portion to rotate under the action of an external force so as to drive the ball head lever to rotate.

[0020] In one embodiment of the present disclosure, the driving portion further includes a connecting rod, the connecting rod is rotatably provided on the valve body and is fixedly connected to the operating rod and the ball head lever respectively.

[0021] The present disclosure provides an electromagnetic reversing valve with manual reversing. The electromagnetic reversing valve with manual reversing at least includes a valve body, a valve core, a transmission portion, a first driving mechanism, and a second driving mechanism. Among them, a valve cavity and an installation cavity located on the first side of the valve cavity are provided in the valve body; the valve core is arranged in the valve cavity and is configured to move in the valve cavity in a first direction and a second direction; the transmission portion is configured that the first end is located in the installation cavity and is provided with a transmission end, and the second end is located in the valve cavity and is connected to the valve core to drive the valve core to move in the valve cavity.

[0022] The first driving mechanism includes a first push rod and a first electromagnet. The first push rod is arranged in the installation cavity and is configured that the first end is in transmission connection with the output end of the first electromagnet, and the second end abuts against the transmission portion to push the transmission portion to move in the second direction under the action of the first electromagnet;

[0023] The second driving mechanism includes a sliding portion and a driving portion. The sliding portion is arranged in the installation cavity and is configured to slide freely relative to the first push rod. The sliding portion is configured to drive the transmission portion to move in the first direction and the second direction under the action of the driving portion, and the driving portion is configured to drive the sliding portion to move in the installation cavity under the action of an external force.

[0024] In this way, when the electromagnetic reversing valve with manual reversing of the present disclosure is powered on, the first electromagnet of the first driving mechanism can push the transmission portion to move in the second direction through the first push rod, thereby driving the valve core to move in the second direction to realize the switching of the valve core position. When the electromagnetic reversing valve with manual reversing of the present disclosure is not powered on, the sliding portion of the second driving mechanism can drive the transmission portion to move in the first direction and the second direction under the action of the driving portion, thereby pushing the valve core to move in the second direction, and the switching of the valve core position can also be realized.

[0025] In this way, the electromagnetic reversing valve with manual reversing of the present disclosure can have two operation modes, namely electric operation and manual operation, which facilitates the operator to select the operation mode of the electromagnetic reversing valve with manual reversing of the present disclosure according to needs; during normal use, the electric operation mode can be selected to reduce the labor intensity, while in the case of emergency power failure, inconvenient power supply or damage to the first driving mechanism, the operator can select the manual operation mode to achieve rapid response, ensure the reliability of reversing, and avoid failures of the equipment in which it is located. Moreover, since the sliding part slides freely relative to the first push rod, the first driving mechanism will not interfere with the normal operation of the second driving mechanism, ensuring that the mechanisms related to electric operation will not interfere with the manual operation mode.

[0026] Other features and advantages of the present disclosure will become clear from the following detailed description of the exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings incorporated in and constituting a part of this specification illustrate embodiments of the present disclosure and, together with the description thereof, are used to explain the principles of the present disclosure.

[0028] Figure 1 is a sectional structure diagram of the electromagnetic reversing valve with manual reversing provided by an embodiment of the present disclosure;

[0029] Figure 2 is another sectional structure diagram of the electromagnetic reversing valve with manual reversing provided by an embodiment of the present disclosure.

[0030] Figures 1 to 2 The corresponding relationships between the names of the components and the reference numerals in are as follows:

[0031] 10, valve body; 11, valve cavity; 111, oil inlet cavity; 112, oil return cavity; 113, first working cavity; 114, second working cavity; 12, installation cavity; 13, spring seat; 20, valve core; 30, transmission part; 31, transmission end; 32, body; 40, first driving mechanism; 41, first push rod; 42, first electromagnet; 50, second driving mechanism; 51, sliding part; 511, sliding groove; 512, through hole; 513, mating groove; 52, driving part; 521, ball head lever; 53, operating rod; 54, connecting rod; 60, third driving mechanism; 61, second push rod; 62, second electromagnet; 71, first spring; 72, second spring; 81, third spring; 82, fourth spring. A: first end; B: second end. M: first direction; N: second direction. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present disclosure. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary, and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.

[0033] Numerous specific details are set forth in the following description in order to provide a thorough understanding of the present disclosure. However, the present disclosure can be implemented in many other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the spirit of the present disclosure. Therefore, the present disclosure is not limited by the specific embodiments 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.

[0034] 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.

[0035] 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 “upon” or “in response to determining.” In this document, “above,” “below,” “front,” “rear,” “left,” “right,” etc. are used only to indicate the relative positional relationship between relevant parts, rather than to 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 between its two endpoints, but also several sub-ranges subsumed therein.

[0036] The present disclosure provides an electromagnetic reversing valve with manual reversing. The electromagnetic reversing valve with manual reversing at least includes a valve body, a valve core, a transmission part, a first driving mechanism, and a second driving mechanism. Among them, a valve cavity and an installation cavity located on the first side of the valve cavity are provided in the valve body; the valve core is arranged in the valve cavity and is configured to move in the valve cavity in a first direction and a second direction; the transmission part is configured such that the first end is located in the installation cavity and is provided with a transmission end, and the second end is located in the valve cavity and is connected to the valve core to drive the valve core to move in the valve cavity.

[0037] The first driving mechanism includes a first push rod and a first electromagnet. The first push rod is arranged in the installation cavity and is configured such that the first end is in transmission connection with the output end of the first electromagnet, and the second end abuts against the transmission part to push the transmission part to move in the second direction under the action of the first electromagnet;

[0038] The second driving mechanism includes a sliding part and a driving part. The sliding part is arranged in the installation cavity and is configured to slide freely relative to the first push rod. The sliding part is configured to drive the transmission part to move in the first direction and the second direction under the action of the driving part, and the driving part is configured to drive the sliding part to move in the installation cavity under the action of an external force.

[0039] In this way, when the electromagnetic reversing valve with manual reversing of the present disclosure is powered on, the first electromagnet of the first driving mechanism can push the transmission part to move in the second direction through the first push rod, thereby driving the valve core to move in the second direction and realizing the switching of the position of the valve core. When the electromagnetic reversing valve with manual reversing of the present disclosure is not powered on, the sliding part of the second driving mechanism can drive the transmission part to move in the first direction and the second direction under the action of the driving part, thereby pushing the valve core to move in the second direction, and the switching of the position of the valve core can also be realized.

[0040] In this way, the electromagnetic reversing valve with manual reversing of the present disclosure can have two operation modes: electric and manual, which is convenient for the operator to select the operation mode of the electromagnetic reversing valve with manual reversing according to needs; the electric operation mode can be selected during normal use, thereby reducing the labor intensity. In the case of emergency power failure, inconvenient power supply, or damage to the first driving mechanism, the operator can select the manual operation mode, thereby realizing rapid response, ensuring the reliability of reversing, and avoiding failures of the equipment in which it is located. Moreover, since the sliding part slides freely relative to the first push rod, the first driving mechanism will not interfere with the normal operation of the second driving mechanism, ensuring that the mechanisms related to electric operation will not interfere with the manual operation mode.

[0041] For the sake of easy understanding, the following Figures 1 to 2 is combined with an embodiment to describe in detail the specific structure and working principle of the electromagnetic reversing valve with manual reversing of the present disclosure.

[0042] As Figures 1 to 2As shown in the figure, the present disclosure provides an electromagnetic reversing valve with manual reversing. The electromagnetic reversing valve with manual reversing at least includes a valve body 10, a valve core 20, a transmission part 30, a first driving mechanism 40, and a second driving mechanism 50. Among them, a valve cavity 11 and an installation cavity 12 located on the first side of the valve cavity 11 are provided in the valve body 10; the valve core 20 is arranged in the valve cavity 11 and is configured to move in the valve cavity 11 in a first direction and a second direction; the transmission part 30 is configured such that the first end is located in the installation cavity 12 and is provided with a transmission end 31, and the second end is located in the valve cavity 11 and is connected to the valve core 20 to drive the valve core 20 to move in the valve cavity 11.

[0043] The first driving mechanism 40 includes a first push rod 41 and a first electromagnet 42. The first push rod 41 is arranged in the installation cavity 12 and is configured such that the first end is in transmission connection with the output end of the first electromagnet 42, and the second end abuts against the transmission part 30 to push the transmission part 30 to move in the second direction under the action of the first electromagnet 42;

[0044] The second driving mechanism 50 includes a sliding part 51 and a driving part 52. The sliding part 51 is arranged in the installation cavity 12 and is configured to slide freely relative to the first push rod 41. The sliding part 51 is configured to drive the transmission part 30 to move in the first direction and the second direction under the action of the driving part 52, and the driving part 52 is configured to drive the sliding part 51 to move in the installation cavity 12 under the action of an external force.

[0045] In this way, when the electromagnetic reversing valve with manual reversing of the present disclosure is powered on, the first electromagnet 42 of the first driving mechanism 40 can push the transmission part 30 to move in the second direction through the first push rod 41, thereby driving the valve core 20 to move in the second direction and realizing the switching of the position of the valve core 20. When the electromagnetic reversing valve with manual reversing of the present disclosure is not powered on, the sliding part 51 of the second driving mechanism 50 can drive the transmission part 30 to move in the first direction and the second direction under the action of the driving part 52, thereby pushing the valve core 20 to move in the first direction and the second direction, and the switching of the position of the valve core 20 can also be realized.

[0046] In this way, the electromagnetic reversing valve with manual reversing of the present disclosure can have two operation modes: electric and manual, which is convenient for the operator to select the operation mode of the electromagnetic reversing valve with manual reversing according to needs; the electric operation mode can be selected during normal use, thereby reducing the labor intensity. In the case of emergency power failure, inconvenient power supply, or damage to the first driving mechanism 40, the operator can select the manual operation mode, thereby realizing quick response, ensuring the reliability of reversing, and avoiding faults in the equipment where it is located.

[0047] Moreover, since the sliding part 51 slides freely relative to the first push rod 41, the first driving mechanism 40 will not interfere with the normal operation of the second driving mechanism 50, ensuring that the mechanisms related to electric operation will not interfere with the manual operation mode.

[0048] As Figure 1 shown, the electromagnetic directional valve with manual commutation in the present disclosure further includes a third driving mechanism 60. The third driving mechanism 60 is disposed at the second end of the valve body 10 and includes a second push rod 61 and a second electromagnet 62. The second push rod 61 is configured to push the transmission part 30 to move in the first direction under the action of the second electromagnet 62. In this way, when the electromagnetic directional valve with manual commutation in the present disclosure is powered on, the first electromagnet 42 of the first driving mechanism 40 can push the transmission part 30 to move in the second direction through the first push rod 41, thereby driving the valve core 20 to move in the second direction. The second electromagnet 62 of the third driving mechanism 60 can push the transmission part 30 to move in the first direction through the second push rod 61, thereby driving the valve core 20 to move in the first direction. Thus, it is ensured that in the electric operation mode of the electromagnetic directional valve with manual commutation in the present disclosure, the valve core 20 can be controlled by the first driving mechanism 40 and the third driving mechanism 60 to move in the first direction and the second direction, ensuring that the valve core 20 of the present disclosure can move to the target position under the action of the first driving mechanism 40 and the third driving mechanism 60, that is, ensuring that the electromagnetic directional valve with manual commutation in the present disclosure has a complete switching function in the electric operation mode.

[0049] As Figure 1 shown, in an embodiment of the present disclosure, an oil inlet chamber 111, an oil return chamber 112, a first working chamber 113, and a second working chamber 114 are provided in the valve body 10. The valve core 20 is configured to move between a first position and a second position in the valve chamber 11. When the valve core 20 is in the first position, the oil inlet chamber 111 is not communicated with the first working chamber 113 and the second working chamber 114; when the valve core 20 is in the second position, the oil inlet chamber 111 is communicated with the first working chamber 113, and the oil return chamber 112 is communicated with the second working chamber 114; when the valve core 20 is in the second position, the oil inlet chamber 111 is communicated with the second working chamber 114, and the oil return chamber 112 is communicated with the first working chamber 113.

[0050] Thus, during the operation of the electromagnetic directional control valve with manual commutation in the present disclosure, whether in the electric operation mode or the manual operation mode, the spool 20 can move between the first position, the second position, and the third position within the valve chamber 11. When the spool 20 is in the first position, the oil inlet chamber 111 is not in communication with either the first working chamber 113 or the second working chamber 114. When the spool 20 is in the second position, the oil inlet chamber 111 is in communication with the first working chamber 113, and the oil return chamber 112 is in communication with the second working chamber 114. The hydraulic oil in the oil inlet chamber 111 can flow to the first working chamber 113, and the hydraulic oil in the second working chamber 114 can flow to the oil return chamber 112. When the spool 20 is in the third position, the oil inlet chamber 111 is in communication with the second working chamber 114, and the oil return chamber 112 is in communication with the first working chamber 113. The hydraulic oil in the oil inlet chamber 111 can flow to the second working chamber 114, and the hydraulic oil in the first working chamber 113 can flow to the oil return chamber 112. Thus, it is ensured that the electromagnetic directional control valve with manual commutation in the present disclosure can effectively switch the flow direction of the hydraulic oil in the oil inlet chamber 111 and achieve the commutation purpose whether in the electric operation mode or the manual operation mode.

[0051] As Figure 1 shown, in an embodiment of the present disclosure, a sliding groove 511 is provided on the sliding portion 51, the transmission end 31 is configured to be located within the sliding groove 511, and the sliding portion 51 is configured to drive the transmission portion 30 to move in the first direction and the second direction through the first end face and the second end face of the sliding groove 511 under the action of the driving portion 52.

[0052] Since the sliding groove 511 is provided on the sliding portion 51 and the transmission end 31 is located within the sliding groove 511, in the manual operation mode of the electromagnetic directional control valve with manual commutation in the present disclosure, the sliding portion 51 can drive the transmission portion 30 to move in the first direction and the second direction through the first end face and the second end face of the sliding groove 511 under the action of the driving portion 52, and then drive the spool 20 to move between the first position, the second position, and the third position within the valve chamber 11 through the transmission portion 30, so as to achieve the commutation of the hydraulic oil.

[0053] As Figure 1 shown, in an embodiment of the present disclosure, a through hole 512 is provided inside the sliding portion 51, a sliding groove 511 is formed inside the through hole 512, and the inner diameter of the sliding groove 511 is configured to be larger than the inner diameter of the through hole 512; the first push rod 41 is configured to be inserted into the first end of the through hole 512; the transmission portion 30 includes a body 32 and a transmission end 31 provided on the body 32; the transmission end 31 and the first end of the body 32 are configured to be inserted into the second end of the through hole 512 and to make the transmission end 31 cooperate with the sliding groove 511.

[0054] It can be seen that a through hole 512 is provided inside the sliding part 51, a sliding groove 511 is formed inside the through hole 512, the inner diameter of the sliding groove 511 is larger than that of the through hole 512, the driving end 31 of the driving part 30 and the first end of the body 32 are inserted into the second end of the through hole 512, which can not only enable the driving end 31 to cooperate with the sliding groove 511, so that the sliding part 51 can drive the driving part 30 to move in the first direction and the second direction through the first end face and the second end face of the sliding groove 511; but also facilitate the second end of the first push rod 41 to abut against the driving end 31 of the driving part 30, so as to facilitate the first push rod 41 to push the driving part 30 to move in the second direction. Moreover, the first push rod 41 is inserted into the first end of the through hole 512 and slides freely relative to the inner wall of the through hole 512, ensuring that the first driving mechanism 40 will not interfere with the normal operation of the second driving mechanism 50 and ensuring that the electric operation related mechanism will not interfere with the manual operation mode.

[0055] As Figure 1 shown, in an embodiment of the present disclosure, in the valve cavity 11, a first spring 71 and a second spring 72 are respectively arranged on both sides of the valve core 20. The first spring 71 is configured to abut against the inner wall of the first end of the valve body 10; the second spring 72 is configured to abut against the inner wall of the second end of the valve body 10; the first spring 71 and the second spring 72 are configured to drive the valve core 20 to return to the initial position.

[0056] By respectively arranging the first spring 71 and the second spring 72 on both sides of the valve core 20, it can be ensured that when the first driving mechanism 40, the second driving mechanism 50 and the third driving mechanism 60 of the present disclosure do not actively drive the valve core 20 to move, the first spring 71 and the second spring 72 can drive the valve core 20 to return to the initial position. Specifically, in the Figure 1 embodiment shown in, the initial position of the valve core 20 of the present disclosure is the first position, while in another embodiment of the present disclosure, the initial position of the valve core 20 of the present disclosure can also be other positions, which is not limited herein.

[0057] As Figure 1As shown, in one embodiment of the present disclosure, a spring seat 13 is provided at the first end of the installation cavity 12, and a third spring 81 and a fourth spring 82 are provided on both sides of the sliding portion 51, respectively. The third spring 81 is configured to abut against the spring seat 13, and the first push rod 41 is configured to penetrate the spring seat 13; the fourth spring 82 is configured to abut against the inner wall of the second end of the installation cavity 12; the third spring 81 and the fourth spring 82 are configured to drive the sliding portion 51 to restore the initial position. By providing the third spring 81 and the fourth spring 82 on both sides of the sliding portion 51, respectively, it can be ensured that when the driving portion 52 of the second driving mechanism 50 of the present disclosure does not actively drive the sliding portion 51 to move, the third spring 81 and the fourth spring 82 can drive the sliding portion 51 to restore the initial position, and ensure that when the operator does not manually operate the electromagnetic reversing valve with manual reversing of the present disclosure, the sliding portion 51 is in the initial position and will not drive the valve core 20 of the present disclosure to move.

[0058] like Figure 1 As shown, in one embodiment of the present disclosure, a matching groove 513 is provided on the outer peripheral surface of the sliding part 51; a ball head lever 521 is provided at the end of the driving part 52, and the ball head lever 521 matches with the matching groove 513 on the sliding part 51 through a spherical outer contour; the driving part 52 is configured to drive the sliding part 51 to move through the ball head lever 521 when it is controlled to rotate by an external force. In this way, in the manual operation mode of the electromagnetic reversing valve with manual reversing of the present disclosure, the operator can drive the ball head lever 521 to rotate by driving the driving part 52; because the ball head lever 521 matches with the matching groove 513 on the sliding part 51 through a spherical outer contour, it can be ensured that the ball head lever 521 can always abut against the matching groove 513 on the sliding part 51 during the rotation process, thereby driving the sliding part 51 to move. During the movement of the sliding part 51, the transmission part 30 can be driven to move in the first direction and the second direction, and then the valve core 20 can be driven to move between the first position, the second position and the third position in the valve chamber 11 through the transmission part 30 to achieve the reversal of the hydraulic oil. Compared with the movement of the driving part 52, the electromagnetic reversing valve with manual reversing disclosed in the present invention can achieve manual reversing by controlling the movement of the driving part 52, which can effectively reduce the difficulty and labor intensity of the operator's operation and is more convenient.

[0059] like Figure 1 As shown, in one embodiment of the present disclosure, the driving part 52 further includes an operating rod 53, which is in transmission connection with the ball-end lever 521, and the operating rod 53 is configured to drive the driving part 52 to rotate under the action of an external force, so as to drive the ball-end lever 521 to rotate. That is, in the manual operation mode of the solenoid reversing valve with manual reversing of the present disclosure, the operator can drive the driving part 52 to rotate by shifting, thereby driving the ball-end lever 521 to rotate, and realizing manual reversing.

[0060] likeFigure 2 As shown, in one embodiment of the present disclosure, the driving part 52 further includes a connecting rod 54 which is rotatably arranged on the valve body 10 and fixedly connected to the operating rod 53 and the ball head lever 521 respectively. Since the connecting rod 54 is rotatably arranged on the valve body 10 and fixedly connected to the operating rod 53 and the ball head lever 521 respectively, it can ensure that the connecting rod 54, the operating rod 53 and the ball head lever 521 are integrally rotatably arranged on the valve body 10 of the electromagnetic reversing valve with manual reversing of the present disclosure, and the operating rod 53 is located outside the valve body 10, while the ball head lever 521 is located in the installation cavity 12.

[0061] 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 selection of the terms used herein is intended to best explain the principles of the embodiments, the practical application or the improvement of the technology in the market, or to enable other ordinary skilled persons in the technical field to understand the embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.

Claims

1. A solenoid reversing valve with manual reversing, characterized in that: include: A valve body (10), wherein the valve body (10) is provided with a valve cavity (11) and a mounting cavity (12) located on a first side of the valve cavity (11); A valve core (20), the valve core (20) being arranged in the valve cavity (11) and being configured to move in a first direction and a second direction in the valve cavity (11); a transmission part (30), wherein the transmission part (30) is constructed such that a first end is located in the installation cavity (12) and is provided with a transmission end (31), and a second end is located in the valve cavity (11) and is connected to the valve core (20) so as to drive the valve core (20) to move in the valve cavity (11); A first driving mechanism (40), the first driving mechanism (40) comprising a first push rod (41) and a first electromagnet (42), the first push rod (41) being arranged in the mounting cavity (12) and being configured such that a first end of the first push rod is drivingly connected to an output end of the first electromagnet (42), and a second end of the first push rod is in contact with the transmission part (30), so as to push the transmission part (30) to move in a second direction under the action of the first electromagnet (42); A second driving mechanism (50), the second driving mechanism (50) includes a sliding portion (51) and a driving portion (52), the sliding portion (51) is arranged in the installation cavity (12), and is configured to slide freely relative to the first push rod (41), the sliding portion (51) is configured to drive the transmission portion (30) to move in a first direction and a second direction under the action of the driving portion (52), and the driving portion (52) is configured to drive the sliding portion (51) to move in the installation cavity (12) under the action of an external force.

2. The electromagnetic reversing valve with manual reversing according to claim 1, characterized in that: The valve body (10) further comprises a third driving mechanism (60), wherein the third driving mechanism (60) is arranged at the second end of the valve body (10) and comprises a second push rod (61) and a second electromagnet (62), wherein the second push rod (61) is configured to push the transmission part (30) to move in the first direction under the action of the second electromagnet (62).

3. The electromagnetic reversing valve with manual reversing according to claim 1, characterized in that: The valve body (10) is provided with an oil inlet chamber (111), an oil return chamber (112), a first working chamber (113) and a second working chamber (114); the valve core (20) is configured to move between a first position, a second position and a third position in the valve chamber (11); when the valve core (20) is in the first position, the oil inlet chamber (111) is not connected to the first working chamber (113) and the second working chamber (114); when the valve core (20) is in the second position, the oil inlet chamber (111) is connected to the first working chamber (113), and the oil return chamber (112) is connected to the second working chamber (114); when the valve core (20) is in the third position, the oil inlet chamber (111) is connected to the second working chamber (114), and the oil return chamber (112) is connected to the first working chamber (113).

4. The electromagnetic reversing valve with manual reversing according to claim 1, characterized in that: The sliding portion (51) is provided with a sliding groove (511), the transmission end (31) is configured to be located in the sliding groove (511), and the sliding portion (51) is configured to drive the transmission portion (30) to move in the first direction and the second direction through the first end surface and the second end surface of the sliding groove (511) under the action of the driving portion (52).

5. The electromagnetic reversing valve with manual reversing according to claim 4, characterized in that: A through hole (512) is provided inside the sliding portion (51), a sliding groove (511) is provided inside the through hole (512), and the inner diameter of the sliding groove (511) is configured to be larger than the inner diameter of the through hole (512); The first push rod (41) is configured to be inserted into the first end of the through hole (512); The transmission part (30) comprises a main body (32) and a transmission end (31) arranged on the main body (32); the transmission end (31) and the first end of the main body (32) are configured to be inserted into the second end of the through hole (512), and the transmission end (31) is matched with the sliding groove (511).

6. The electromagnetic reversing valve with manual reversing according to claim 1, characterized in that: In the valve cavity (11), a first spring (71) and a second spring (72) are respectively arranged on both sides of the valve core (20); the first spring (71) is configured to abut against the inner wall of the first end of the valve body (10); the second spring (72) is configured to abut against the inner wall of the second end of the valve body (10); the first spring (71) and the second spring (72) are configured to drive the valve core (20) to return to an initial position.

7. The electromagnetic reversing valve with manual reversing according to claim 1, characterized in that: A spring seat (13) is provided at the first end of the installation cavity (12); a third spring (81) and a fourth spring (82) are respectively provided on both sides of the sliding portion (51); the third spring (81) is configured to abut against the spring seat (13); the first push rod (41) is configured to penetrate the spring seat (13); the fourth spring (82) is configured to abut against the inner wall of the second end of the installation cavity (12); the third spring (81) and the fourth spring (82) are configured to drive the sliding portion (51) to return to an initial position.

8. The solenoid reversing valve with manual reversing according to claim 1, characterized in that: The sliding part (51) is provided with a matching groove (513) on the outer peripheral surface; the end of the driving part (52) is provided with a ball head lever (521), and the ball head lever (521) is matched with the matching groove (513) on the sliding part (51) through a spherical outer contour; the driving part (52) is constructed so as to drive the sliding part (51) to move through the ball head lever (521) when it is controlled to rotate by an external force.

9. The electromagnetic reversing valve with manual reversing according to claim 8, characterized in that: The driving part (52) further comprises an operating rod (53), the operating rod (53) being in transmission connection with the ball head lever (521), and the operating rod (53) being configured to drive the driving part (52) to rotate under the action of an external force, thereby driving the ball head lever (521) to rotate.

10. The solenoid reversing valve with manual reversing according to claim 9, characterized in that: The driving part (52) further comprises a connecting rod (54), wherein the connecting rod (54) is rotatably disposed on the valve body (10) and is respectively fixedly connected to the operating rod (53) and the ball head lever (521).

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