CN216478122U - Oil circuit switching mechanism and hydraulic system - Google Patents
Oil circuit switching mechanism and hydraulic system Download PDFInfo
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- CN216478122U CN216478122U CN202123256410.7U CN202123256410U CN216478122U CN 216478122 U CN216478122 U CN 216478122U CN 202123256410 U CN202123256410 U CN 202123256410U CN 216478122 U CN216478122 U CN 216478122U
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Abstract
The utility model provides an oil circuit switching mechanism and hydraulic system relates to hydraulic control technical field. The oil circuit switching mechanism comprises a valve body, a valve core and a driving device. The valve body is provided with an accommodating cavity and an oil way, and the accommodating cavity is communicated with the oil way; one part of the valve core is positioned in the containing cavity and can slide along the containing cavity, the bottom end of the valve core is provided with a piston part, the piston part is in sliding butt joint with the cavity wall of the containing cavity so as to control the on-off of an oil circuit, the piston part is provided with an annular clamping groove, a first sealing element is sleeved on the circumferential direction of the annular clamping groove and is in butt joint with the cavity wall of the containing cavity, a second sealing element is sleeved on the circumferential direction of the valve core, and the second sealing element is positioned at the top of the containing cavity; the driving device is connected with the valve core and used for driving the valve core to slide along the accommodating cavity. The utility model provides an oil circuit switching mechanism has realized the switching of oil circuit, has improved transmission stability effectively and has reduced mechanical wear.
Description
Technical Field
The utility model relates to a hydraulic control technical field especially relates to an oil circuit switching mechanism and hydraulic system.
Background
Currently, in most hydraulic oil path control of construction machines, a plunger type switching valve is generally used to switch an oil path so that a corresponding hydraulic actuator performs a relevant operation. However, the plunger type switching valve in the prior art has the problems of poor transmission stability and large mechanical abrasion, so that the phenomenon of hydraulic oil leakage occurs after the plunger type switching valve is used for a period of time, and the hydraulic actuator generates out-of-control action. Therefore, how to improve the transmission stability of the oil path switching mechanism and reduce the mechanical wear is an urgent technical problem to be solved.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides an oil path switching mechanism to overcome the defects in the prior art, so as to solve the technical problems of poor transmission stability and large mechanical wear of the plunger type switching valve in the prior art, which results in leakage phenomenon and causes the hydraulic actuator to generate out-of-control action.
The utility model provides a following technical scheme:
an oil passage switching mechanism comprising:
the valve body is provided with an accommodating cavity and an oil way, and the accommodating cavity is communicated with the oil way;
the oil circuit comprises a valve core, a piston part, an annular clamping groove and a second sealing part, wherein one part of the valve core is positioned in the containing cavity and can slide along the containing cavity, the bottom end of the valve core is provided with the piston part, the piston part is in sliding butt joint with the cavity wall of the containing cavity so as to control the on-off of the oil circuit, the piston part is provided with the annular clamping groove, the circumferential direction of the annular clamping groove is sleeved with the first sealing part, the first sealing part is in butt joint with the cavity wall of the containing cavity, the circumferential direction of the valve core is sleeved with the second sealing part, and the second sealing part is positioned at the top of the containing cavity;
and the driving device is connected with the valve core and is used for driving the valve core to slide along the accommodating cavity.
In some embodiments of the present application, the oil path switching mechanism further includes an elastic member, the elastic member is sleeved on a circumferential direction of the valve core and abuts against a top wall of the accommodating chamber and a top surface of the piston portion, respectively.
In some embodiments of the present application, the oil path switching mechanism further includes a transmission device, the transmission device is respectively connected to the driving device and the valve core, and the driving device drives the transmission device to rotate so as to drive the valve core to slide along the accommodating cavity.
In some embodiments of the present application, an end of the transmission proximate to the valve element is provided with a raised portion, and the raised portion is connected with the valve element.
In some embodiments of the present application, a hook portion is disposed at an end of the valve element close to the protrusion portion, and the hook portion is connected to the protrusion portion.
In some embodiments of the present application, the valve body is provided with a receiving groove, the receiving groove is located at the top of the receiving cavity, and the second sealing element is located in the receiving groove and respectively abuts against the bottom surface of the receiving groove and the circumferential surface of the valve element.
In some embodiments of the present application, the oil path switching mechanism further includes a valve cover disposed in the accommodating groove and located at the top of the second sealing element.
In some embodiments of the present application, an oil inlet and an oil outlet are disposed at the bottom of the valve body, and the oil inlet and the oil outlet are respectively communicated with the oil path.
In some embodiments of the present application, the oil path switching mechanism further includes a mounting bracket, and the mounting bracket is connected to the driving device and the valve body, respectively.
The application also provides a hydraulic system, which comprises the oil path switching mechanism.
The embodiment of the utility model has the following advantage:
the application provides an oil circuit switching mechanism, drives the valve core through drive arrangement and slides along holding the chamber, and the bottom of valve core is equipped with and holds the piston portion of the chamber wall slip butt in chamber, has realized the intercommunication and the blocking to the oil circuit to reach the purpose that the oil circuit switches, improved driven stability. The first sealing element is sleeved on the circumferential direction of the annular clamping groove and is abutted against the cavity wall of the accommodating cavity. The piston part and the cavity wall of the containing cavity are in the shape of an inverted truncated cone, when the valve core slides to the bottommost end along the containing cavity, the first sealing element is abutted to the cavity wall of the containing cavity to realize sealing connection, and the first sealing element does not generate relative friction with the cavity wall of the containing cavity in the sliding process of the valve core along the containing cavity, so that the mechanical wear of the first sealing element is reduced, and the technical problem that the hydraulic actuating element generates out-of-control action due to the fact that the plunger type switching valve in the prior art is poor in transmission stability and large in mechanical wear is avoided.
In order to make the aforementioned and other objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a perspective view of an oil path switching mechanism according to some embodiments of the present disclosure;
FIG. 2 illustrates a schematic cross-sectional view of an oil path switching mechanism in some embodiments of the present application;
FIG. 3 illustrates an exploded view of an oil path switching mechanism according to some embodiments of the present application;
fig. 4 is a perspective view of an oil path switching mechanism according to some embodiments of the present disclosure.
Description of the main element symbols:
100-oil path switching mechanism; 10-a valve body; 101-a containment chamber; 102-oil path; 103-an oil inlet; 104-oil outlet; 105-a receiving groove; 20-a valve core; 201-a piston portion; 2011-ring slot; 2012 — a first seal; 2013-a second seal; 202-an elastic member; 203-a hook; 30-a drive device; 40-a transmission; 401-a boss; 50-valve cover; 60-a mounting frame.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the templates herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 and 2, an embodiment of the present application provides an oil path switching mechanism 100, which is mainly applied to a hydraulic system of a mechanical engineering device, and includes a valve body 10, a valve spool 20, and a driving device 30.
The valve body 10 is provided with an accommodating chamber 101 and an oil passage 102, and the accommodating chamber 101 communicates with the oil passage 102. A part of the valve core 20 is located in the accommodating cavity 101 and can slide along the accommodating cavity 101, a piston portion 201 is arranged at the bottom end of the valve core 20, the piston portion 201 is in sliding abutting joint with the cavity wall of the accommodating cavity 101 to control the on-off of the oil path 102, an annular clamping groove 2011 is arranged on the piston portion 201, a first sealing member 2012 is sleeved on the circumferential clamping groove 2011, the first sealing member 2012 is in abutting joint with the cavity wall of the accommodating cavity 101, a second sealing member 2013 is sleeved on the circumferential sleeve of the valve core 20, and the second sealing member 2013 is located at the top of the accommodating cavity 101. The driving device 30 is connected to the valve core 20 for driving the valve core 20 to slide along the accommodating cavity 101.
In the oil path switching mechanism 100 according to the embodiment of the present application, the valve body 10 is provided therein with the accommodating chamber 101 and the oil path 102, which are communicated with each other, and a part of the valve element 20 is located in the accommodating chamber 101 and can slide up and down along the accommodating chamber 101. The bottom of the valve core 20 is provided with a piston portion 201 matched with the cavity wall of the accommodating cavity 101, and the piston portion 201 can be in sliding abutting contact with the cavity wall of the accommodating cavity 101, so that the oil path 102 can be communicated and blocked. When the valve element 20 slides upward along the housing chamber 101, the piston portion 201 slides upward and is out of contact with the chamber wall of the housing chamber 101, and the oil passage 102 is opened. When the valve core 20 slides downwards along the accommodating cavity 101, the piston part 201 slides downwards to abut against the wall of the accommodating cavity 101, so that the oil path 102 is blocked, and the on-off of the oil path 102 is controlled. Specifically, two valve cores 20 may be provided, and the two valve cores 20 slide along the accommodating cavity 101 synchronously and in opposite directions. When one of the valve elements 20 slides upward to open the oil passage 102, the other valve element 20 slides downward to block the oil passage 102. When one valve core 20 slides downwards to block the oil path 102, the other valve core 20 slides upwards to communicate the oil path 102, and the switching of the oil path 102 is realized.
Wherein, be provided with ring groove 2011 on piston portion 201, and the circumference cover of ring groove 2011 is equipped with first sealing member 2012, and first sealing member 2012 and the chamber wall looks butt that holds chamber 101 to realize sealing connection. When the piston part 201 of the valve core 20 is abutted against the cavity wall of the accommodating cavity 101, the first sealing member 2012 is in sealing connection, so that the hydraulic actuator is prevented from generating uncontrolled motion due to leakage of hydraulic oil. The top of the accommodating cavity 101 is provided with a second sealing member 2013, and the second sealing member 2013 is sleeved on the circumferential direction of the valve core 20, so that the top of the accommodating cavity 101 and the top of the valve body 10 are in sealing connection, and the hydraulic actuator is prevented from generating an out-of-control action due to leakage of hydraulic oil. The driving device 30 provides driving force to drive the valve core 20 to slide along the accommodating cavity 101, and the driving device 30 drives the valve core 20 to stably slide, so that the stability of transmission is improved.
Specifically, the driving device 30 may be a driving motor or a servo steering engine. The first sealing element 2012 is a flexible sealing ring, and the first sealing element 2012 is pressed and deformed when abutting against the cavity wall of the accommodating cavity 101, so that the contact area of the first sealing element 2012 is increased, and the oil path switching mechanism 100 has good sealing performance.
The shape of piston portion 201 and the chamber wall that holds chamber 101 is inverted circular truncated cone, and when case 20 slided to the bottommost along holding chamber 101, first packing 2012 and the chamber wall butt that holds chamber 101 realized sealing connection. When the piston portion 201 is at the lowermost position, the outer ring diameter of the first packing 2012 is smaller than the cavity wall diameter of the accommodating cavity 101, and the first packing 2012 is not abutted against the cavity wall of the accommodating cavity 101. The first sealing member 2012 does not generate relative friction with the cavity wall of the accommodating cavity 101 in the sliding process of the valve core 20 along the accommodating cavity 101, so that the mechanical wear of the first sealing member 2012 is reduced, the sealing property, the wear resistance and the durability are improved, and the technical problem that the hydraulic actuator generates an uncontrolled motion due to the fact that the plunger type switching valve in the prior art has poor transmission stability and large mechanical wear is solved.
As shown in fig. 2, in an embodiment of the present application, optionally, the oil path switching mechanism 100 further includes an elastic member 202, and the elastic member 202 is sleeved on the valve element 20 in a circumferential direction and is respectively abutted against a top wall of the accommodating chamber 101 and a top surface of the piston portion 201.
In this embodiment, the valve core 20 is circumferentially sleeved with an elastic member 202, and the elastic member 202 abuts against the top wall of the accommodating chamber 101 and the top surface of the piston portion 201, respectively, to achieve the resetting of the valve core 20. When the driving device 30 drives one of the valve cores 20 to slide upwards along the accommodating cavity 101, the elastic member 202 is compressed to generate a rebound force. When the oil path 102 needs to be switched, the driving device 30 drives the other valve core 20 to slide upwards, at this time, one valve core 20 is not driven by driving force, and the one valve core 20 slides downwards through the rebounding force of the elastic piece 202 to reset, so that the switching of the oil path 102 is realized. Specifically, the elastic member 202 may be a return spring.
As shown in fig. 1 and fig. 2, in an embodiment of the present application, optionally, the oil path switching mechanism 100 further includes a transmission device 40, the transmission device 40 is connected to the driving device 30 and the valve element 20, and the driving device 30 drives the transmission device 40 to rotate so as to drive the valve element 20 to slide along the accommodating cavity 101.
In the present embodiment, the transmission 40 is connected to the drive device 30 and the valve element 20, respectively. The driving device 30 generates a driving force to drive the transmission device 40 to rotate, so that the transmission device 40 drives the valve core 20 to slide up and down along the accommodating cavity 101. Specifically, the driving device 30 may be a servo steering engine, and can drive the transmission device 40 to rotate clockwise or counterclockwise by a certain angle. When the driving device 30 is closed, the transmission device 40 is not stressed and is in an initial position, at this time, the two valve cores 20 are located at the bottom end, the two valve cores 20 are firmly pressed on the cavity wall of the accommodating cavity 101 by the pressure of hydraulic oil, the piston portion 201 and the first sealing member 2012 are abutted against the cavity wall of the accommodating cavity 101, and the two oil paths 102 are blocked. When the driving device 30 drives the transmission device 40 to rotate clockwise by a preset angle value, one of the valve cores 20 slides upwards, the piston portion 201 and the first sealing member 2012 are separated from the cavity wall of the accommodating cavity 101, so that the oil path 102 at one position of the valve core 20 is conducted, and at this time, the other valve core 20 is at an initial position, and the oil path 102 is in a blocking state. When the driving device 30 drives the transmission device 40 to rotate counterclockwise by a preset angle value, the other valve element 20 slides upwards, the piston portion 201 and the first sealing member 2012 are separated from the cavity wall of the accommodating cavity 101, so that the oil path 102 at the position of the other valve element 20 is conducted, and at this time, one valve element 20 is not driven by a driving force, and is restored to the initial position by the rebound force of the elastic member 202, so as to block the oil path 102. The driving device 30, the transmission device 40 and the valve core 20 are matched for transmission, so that the oil path 102 is switched, and the hydraulic actuator performs corresponding actions.
As shown in fig. 2 and 3, in the above embodiment of the present application, optionally, one end of the transmission device 40 close to the valve core 20 is provided with a convex portion 401, and the convex portion 401 is connected with the valve core 20.
In the present embodiment, one end of the transmission device 40 close to the valve core 20 is provided with a convex portion 401 connected with the valve core 20, so as to realize the transmission connection between the transmission device 40 and the valve core 20. Two valve cores 20 are provided, and two corresponding convex parts 401 of the transmission device 40 are also provided. The transmission device 40 is connected with the output end of the driving device 30, so that the driving device 30 drives the transmission device 40 to rotate, and the valve core 20 is driven to slide along the accommodating cavity 101.
As shown in fig. 2 and 3, in the above embodiment of the present application, optionally, one end of the valve core 20 close to the protrusion 401 is provided with a hook portion 203, and the hook portion 203 is connected to the protrusion 401.
In the present embodiment, one end of the valve core 20 close to the transmission device 40 is provided with a hook portion 203 connected with the convex portion 401, so as to realize the transmission connection between the valve core 20 and the transmission device 40. Two valve cores 20 are provided, and two corresponding hook portions 203 are provided. The transmission device 40 is connected with the output end of the driving device 30, so that the driving device 30 drives the transmission device 40 to rotate, and the valve core 20 is driven to slide along the accommodating cavity 101.
As shown in fig. 2, in an embodiment of the present application, optionally, the valve body 10 is provided with a receiving groove 105, the receiving groove 105 is located at the top of the receiving cavity 101, and the second sealing member 2013 is located in the receiving groove 105 and abuts against the bottom surface of the receiving groove 105 and the circumferential surface of the valve core 20, respectively.
In the present embodiment, the valve body 10 is provided with a receiving groove 105 at the top of the receiving chamber 101. The second sealing member 2013 is disposed in the accommodating groove 105 and located at the bottom of the accommodating groove 105, and the second sealing member 2013 abuts against the bottom surface of the accommodating groove 105 and the circumferential surface of the valve element 20, so that the accommodating groove 105 and the accommodating cavity 101 are hermetically connected, and hydraulic oil is prevented from permeating into the accommodating groove 105 from the accommodating cavity 101, and a leakage phenomenon is caused, so that an out-of-control action of the hydraulic actuator occurs.
As shown in fig. 2 and 4, in the above embodiment of the present application, optionally, the oil path switching mechanism 100 further includes a valve cover 50, and the valve cover 50 is disposed in the accommodating groove 105 and is located at the top of the second sealing member 2013.
In the present embodiment, a valve cover 50 is disposed in the accommodating groove 105 at the top of the second sealing member 2013. The valve cap 50 is respectively abutted against the second sealing element 2013 and the accommodating groove 105 to press the second sealing element 2013, so that the second sealing element 2013 is stably fixed in the accommodating groove 105. Specifically, the second sealing element 2013 is a flexible sealing ring, and the second sealing element 2013 is pressed by the valve cover 50, so that the second sealing element 2013 is extruded and deformed, the contact area of the second sealing element 2013 is increased, and the oil path switching mechanism 100 has good sealing performance.
As shown in fig. 2 and 4, in an embodiment of the present application, optionally, an oil inlet 103 and an oil outlet 104 are provided at a bottom of the valve body 10, and the oil inlet 103 and the oil outlet 104 are respectively communicated with the oil passage 102.
In the present embodiment, the bottom of the valve body 10 is provided with an oil inlet 103 and an oil outlet 104 communicating with the oil passage 102. Wherein, there are two oil outlets 104, and a valve core 20 corresponds to an oil outlet 104, and oil inlet 103 is located between two oil outlets 104. When the drive device 30 is closed, both valve spools 20 block the oil passage 102, so that both oil outlets 104 are disconnected from the oil inlet 103. When the driving device 30 drives the transmission device 40 to rotate clockwise by a preset angle value, one of the valve cores 20 slides upwards to enable the corresponding oil outlet 104 to be communicated with the oil inlet 103, the other valve core 20 is located at an initial position, and the corresponding oil outlet 104 is blocked from the oil inlet 103. When the driving device 30 drives the transmission device 40 to rotate counterclockwise by a preset angle value, the other valve core 20 slides upwards to communicate the corresponding oil outlet 104 with the oil inlet 103, and at this time, one valve core 20 slides downwards to restore to the initial position by the resilience of the elastic member 202, and the corresponding oil outlet 104 is blocked from the oil inlet 103. The switching of the oil path 102 is realized, so that the hydraulic actuator performs corresponding actions.
As shown in fig. 3 and 4, in an embodiment of the present application, optionally, the oil switching mechanism 100 further includes a mounting bracket 60, and the mounting bracket 60 is connected to the driving device 30 and the valve body 10, respectively.
In the embodiment, the driving device 30 and the valve body 10 are connected through the mounting bracket 60, so that the stable connection is realized, and the reliability of the connection is improved.
The embodiment of the present application further provides a hydraulic system, which includes the oil path switching mechanism 100 in the above embodiments.
The hydraulic system has the oil path switching mechanism 100 in any of the embodiments, so that all the beneficial effects of the oil path switching mechanism 100 are achieved, and the description thereof is omitted.
To sum up, the oil circuit switching mechanism that this application provided, drive the valve element through drive arrangement and slide along holding the chamber, the bottom of valve element is equipped with and holds the piston portion of the chamber wall slip butt in chamber, has realized the intercommunication and the blocking to the oil circuit to reach the purpose that the oil circuit switches, improved driven stability. The first sealing element is sleeved on the circumferential direction of the annular clamping groove and is abutted against the cavity wall of the accommodating cavity. The piston part and the cavity wall of the containing cavity are in the shape of an inverted truncated cone, when the valve core slides to the bottommost end along the containing cavity, the first sealing element is abutted to the cavity wall of the containing cavity to realize sealing connection, and the first sealing element does not generate relative friction with the cavity wall of the containing cavity in the sliding process of the valve core along the containing cavity, so that the mechanical wear of the first sealing element is reduced, and the technical problem that the hydraulic actuating element generates out-of-control action due to the fact that the plunger type switching valve in the prior art is poor in transmission stability and large in mechanical wear is avoided.
In all examples shown and described herein, any particular value should be construed as merely exemplary, and not as a limitation, and thus other examples of example embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above-described embodiments are merely illustrative of several embodiments of the present invention, which are described in detail and specific, but not intended to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (10)
1. An oil passage switching mechanism, comprising:
the valve body is provided with an accommodating cavity and an oil way, and the accommodating cavity is communicated with the oil way;
the oil circuit comprises a valve core, a piston part, an annular clamping groove and a second sealing part, wherein one part of the valve core is positioned in the containing cavity and can slide along the containing cavity, the bottom end of the valve core is provided with the piston part, the piston part is in sliding butt joint with the cavity wall of the containing cavity so as to control the on-off of the oil circuit, the piston part is provided with the annular clamping groove, the circumferential direction of the annular clamping groove is sleeved with the first sealing part, the first sealing part is in butt joint with the cavity wall of the containing cavity, the circumferential direction of the valve core is sleeved with the second sealing part, and the second sealing part is positioned at the top of the containing cavity;
and the driving device is connected with the valve core and is used for driving the valve core to slide along the accommodating cavity.
2. The oil passage switching mechanism according to claim 1, further comprising an elastic member that is fitted around a circumferential direction of the valve element and abuts against a top wall of the accommodating chamber and a top surface of the piston portion, respectively.
3. The oil circuit switching mechanism according to claim 1, further comprising a transmission device, wherein the transmission device is connected to the driving device and the valve core, and the driving device drives the transmission device to rotate so as to drive the valve core to slide along the accommodating cavity.
4. The oil path switching mechanism according to claim 3, wherein a boss portion is provided at an end of the transmission device close to the spool, and the boss portion is connected to the spool.
5. The oil passage switching mechanism according to claim 4, wherein a hooking portion is provided at one end of the spool close to the boss portion, and the hooking portion is connected to the boss portion.
6. The oil circuit switching mechanism according to claim 1, wherein the valve body is provided with a receiving groove located at a top of the receiving chamber, and the second sealing member is located in the receiving groove and abuts against a bottom surface of the receiving groove and a circumferential surface of the valve element, respectively.
7. The oil passage switching mechanism according to claim 6, further comprising a valve cover disposed in the receiving groove and located at a top of the second sealing member.
8. The oil circuit switching mechanism according to claim 1, wherein the bottom of the valve body is provided with an oil inlet and an oil outlet, and the oil inlet and the oil outlet are respectively communicated with the oil circuit.
9. The oil path switching mechanism according to claim 1, further comprising a mounting bracket connected to the driving device and the valve body, respectively.
10. A hydraulic system, characterized by comprising the oil passage switching mechanism according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123256410.7U CN216478122U (en) | 2021-12-22 | 2021-12-22 | Oil circuit switching mechanism and hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123256410.7U CN216478122U (en) | 2021-12-22 | 2021-12-22 | Oil circuit switching mechanism and hydraulic system |
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| Publication Number | Publication Date |
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| CN216478122U true CN216478122U (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123256410.7U Active CN216478122U (en) | 2021-12-22 | 2021-12-22 | Oil circuit switching mechanism and hydraulic system |
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| CN (1) | CN216478122U (en) |
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- 2021-12-22 CN CN202123256410.7U patent/CN216478122U/en active Active
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