Quick reset hydraulic switch valve with pressure relief structure for birch sap transportation

Abstract

The utility model discloses a kind of quick reset hydraulic switch valve with pressure relief structure for birch sap transportation, including valve body, the inside of valve body is provided with valve cavity, the side of valve body is provided with oil inlet, the other side of valve body is provided with oil outlet, oil inlet and oil outlet are communicated with valve cavity by oil delivery hole, the below of the oil delivery hole close to oil outlet is provided with pressure relief hole, the both ends of pressure relief hole are communicated with valve cavity and oil outlet respectively, the top of valve body in valve cavity is provided with limit along, the inside of valve body is movably connected with valve core, the valve core is connected with limit along cooperation. It is solved in the prior art, when switch valve is closed, medium existing in valve cavity can form certain resistance to the movement of valve core, resulting in switch valve switch efficiency is affected, and then influence the response speed of conveying system and the accuracy of fluid control, and shorten the service life of switch valve problem.

Description

Technical Field

[0001] This utility model relates to the field of birch sap transportation technology, specifically a quick-reset hydraulic switch valve with a pressure relief structure for birch sap transportation. Background Technology

[0002] A switching valve is a device used in fluid pipeline systems to control the flow of media. It is mainly used to open and close the transport of fluids and is widely used in various industries such as petroleum, chemical, power, pharmaceutical, and food. In complex pipeline networks, it precisely regulates the direction and flow rate of the media, ensuring the stable operation of the entire system. Push-button type switching valves can be quickly opened and closed with a simple pressing action, greatly improving operational convenience. They are especially suitable for applications requiring frequent adjustment or emergency fluid shut-off, such as the hydraulic system of the loading and unloading device in a birch sap transport vehicle. In existing technologies, when a switching valve is closed, the media inside the valve chamber creates resistance to the movement of the valve core, affecting the switching efficiency of the valve. This, in turn, affects the response speed of the transport system and the accuracy of fluid control, and shortens the service life of the switching valve. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a quick-reset hydraulic switching valve for birch sap transportation with a pressure relief structure. This solves the problem in existing technologies where, when the switching valve is closed, the medium inside the valve cavity creates resistance to the movement of the valve core, affecting the switching efficiency of the valve, which in turn affects the response speed and fluid control accuracy of the conveying system, and shortens the service life of the switching valve.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a quick-reset hydraulic switch valve for transporting birch sap with a pressure relief structure, comprising a valve body, an internal valve cavity, an oil inlet on one side of the valve body, and an oil outlet on the other side of the valve body. The oil inlet and outlet are connected to the valve cavity via an oil delivery hole. A pressure relief hole is located below the oil delivery hole near the oil outlet, with both ends of the pressure relief hole connected to the valve cavity and the oil outlet, respectively. A limit edge is provided on the top of the valve body within the valve cavity. The valve body is internally connected to a valve core, which is fitted with a limiting edge. The outer wall of the valve core is provided with an oil guide groove, and the inside of the valve core is provided with a first inner hole. Oil guide holes are equidistantly opened inside the oil guide groove of the valve core, and the oil guide holes are connected to the first inner hole. A plug is threaded to the bottom of the valve body, and a second inner hole is provided at the top of the plug. A compression spring is provided inside the first inner hole, and the other end of the compression spring is located inside the second inner hole. The two ends of the compression spring are respectively abutted against the valve core and the plug.

[0005] Preferably, the valve chamber is provided with an annular groove above the oil inlet, and an O-ring is provided inside the annular groove. The O-ring is slidably connected to the valve core, and a retaining ring is provided inside the annular groove at the top of the O-ring.

[0006] Preferably, a connecting rod is provided at the top of the valve core, and a pressure cap is provided at the top of the connecting rod.

[0007] Preferably, a sealing ring is provided on the side of the valve body and the plug that are close to each other, and the sealing ring abuts against the valve body and the plug respectively.

[0008] Preferably, the bottom of the seal is provided with an internal hexagonal hole.

[0009] This invention provides a quick-reset hydraulic switching valve for birch sap transportation with a pressure relief structure. It offers the following advantages: This improved switching valve structure, through the cooperation of the valve body, valve cavity, inlet, outlet, delivery hole, limit edge, valve core, guide groove, first inner hole, guide hole, plug, second inner hole, compression spring, and pressure relief hole, provides an effective release channel between the valve cavity and the outlet through the pressure relief hole. During the switching valve's opening and closing process, the pressure balance inside the valve cavity can be quickly and smoothly re-established, preventing the formation of pressure differences within the valve cavity. This improves the smoothness of the valve core's lifting and lowering movement and reduces fluid shock and energy loss that may be caused by sudden pressure changes. This enhances the response speed and accuracy of the fluid delivery system, thus contributing to the stability and service life of the switching valve.

[0010] Through the cooperation between the valve body, valve cavity, valve core, annular groove, O-ring, and retaining ring, and by placing the O-ring inside the annular groove, the O-ring is tightly fitted to the valve body and valve core. During the valve core's lifting and lowering process, the sealing between the valve body and valve core can be maintained. By placing the retaining ring on top of the O-ring, the stability of the O-ring within the annular groove can be improved, further ensuring the valve's sealing performance and durability. This effectively prevents leakage of the medium under high pressure or temperature changes, thus helping to improve the overall reliability and service life of the valve. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the appearance of the present utility model;

[0013] Figure 3 This is a schematic diagram of the valve body, valve cavity, and pressure relief hole in this utility model;

[0014] Figure 4 This is a schematic diagram showing the external appearance of the valve core, the first inner hole, and the oil guide hole in this utility model;

[0015] Figure 5 This is a schematic diagram of the structure of the plug, the second inner hole, and the sealing ring in this utility model;

[0016] Figure 6 for Figure 1 A magnified view of a portion of region A in the middle.

[0017] In the diagram: 1. Valve body; 2. Valve cavity; 3. Oil inlet; 4. Oil outlet; 5. Oil delivery hole; 6. Limiting edge; 7. Valve core; 8. Oil guide groove; 9. First inner hole; 10. Oil guide hole; 11. Plug; 12. Second inner hole; 13. Compression spring; 14. Pressure relief hole; 15. Annular groove; 16. O-ring; 17. Retaining ring; 18. Connecting rod; 19. Pressure cap; 20. Sealing ring; 21. Internal hexagonal hole. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the existing hydraulic control system technology of birch sap transport vehicles, when the switching valve is closed, the medium inside the valve chamber will create a certain resistance to the movement of the valve core, which will affect the switching efficiency of the switching valve, thereby affecting the response speed of the conveying system and the accuracy of fluid control, reducing the operating efficiency of the entire loading and unloading system, and shortening the service life of the switching valve. This phenomenon is more obvious, especially when the oil viscosity increases under low temperature conditions.

[0020] In view of this, the present invention provides a quick-reset hydraulic switching valve for birch sap transportation with a pressure relief structure. Through the cooperation between the valve body, valve cavity, oil inlet, oil outlet, oil delivery hole, limit edge, valve core, oil guide groove, first inner hole, oil guide hole, plug, second inner hole, compression spring and pressure relief hole, an effective release channel is provided between the valve cavity and the oil outlet through the pressure relief hole. During the switching valve opening and closing process, the pressure balance inside the valve cavity can be quickly and smoothly re-established, avoiding the formation of pressure difference inside the valve cavity, improving the smoothness of valve core lifting and lowering movement, reducing fluid shock and energy loss that may be caused by pressure change, improving the response speed and accuracy of the fluid delivery system, and extending the service life of the switching valve.

[0021] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0022] Depend on Figure 1-6 It is known that a quick-reset hydraulic switch valve for transporting birch sap with a pressure relief structure includes a valve body 1, a valve cavity 2 inside the valve body 1, an oil inlet 3 on one side of the valve body 1, and an oil outlet 4 on the other side of the valve body 1. The oil inlet 3 and the oil outlet 4 are connected to the valve cavity 2 through an oil delivery hole 5. A pressure relief hole 14 is provided below the oil delivery hole 5 near the oil outlet 4. The two ends of the pressure relief hole 14 are connected to the valve cavity 2 and the oil outlet 4, respectively. A limit edge 6 is provided at the top of the valve body 1 in the valve cavity 2. A valve core 7 is movably connected inside the valve body 1. The valve core 7 is connected to the limiting edge 6. The outer wall of the valve core 7 is provided with an oil guide groove 8. The valve core 7 is provided with a first inner hole 9. The valve core 7 is provided with oil guide holes 10 at equal intervals inside the oil guide groove 8. The oil guide holes 10 are connected to the first inner hole 9. The bottom of the valve body 1 is threaded with a plug 11. The top of the plug 11 is provided with a second inner hole 12. The first inner hole 9 is provided with a compression spring 13. The other end of the compression spring 13 is provided inside the second inner hole 12. The two ends of the compression spring 13 are respectively abutted against the valve core 7 and the plug 11.

[0023] In the specific implementation process, it is worth noting that, through the cooperation between valve body 1, valve cavity 2, oil inlet 3, oil outlet 4, and oil delivery hole 5, the oil inlet 3 and oil outlet 4 of the switching valve are connected to the oil inlet pipe and oil outlet pipe respectively, and are connected to valve cavity 2 through oil delivery hole 5. Through the cooperation between valve body 1, valve cavity 2, limiting edge 6, valve core 7, first inner hole 9, plug 11, second inner hole 12, and compression spring 13, the compression spring 13 is limited by the first inner hole 9 and the second inner hole 12, so that the valve core 7 is pressed against the limiting edge 6 at the top of valve body 1 under the action of compression spring 13, so that the valve core 7 is always at the top of valve body 1. When the valve core 7 is pressed downward by external force, it compresses the compression spring 13. When the pressure disappears, the compression spring 13 quickly releases its stored energy, pushing the valve core 7 to rebound upwards for automatic reset. Through the cooperation between the valve body 1, valve cavity 2, oil inlet 3, oil outlet 4, oil delivery hole 5, limit edge 6, valve core 7, oil guide groove 8, first inner hole 9, oil guide hole 10, plug 11, second inner hole 12, and compression spring 13, the valve is in the open state when the valve core 7 is not pressed by external force. At this time, the oil guide groove 8 and oil guide hole 10 are connected to the oil delivery holes 5 on both sides, allowing the fluid medium to be transported from the oil inlet 3 side to the oil outlet 4. When the valve core 7 is pressed, the valve core 7 moves downwards, the oil guide groove 8 separates from the oil delivery hole 5, and the valve core 7 closes the oil delivery hole 5. At the same time, the compression spring 13 is compressed and... The valve is closed by storing elastic potential energy to stop the flow of fluid medium. When the pressing pressure of the valve core 7 disappears, the compression spring 13 quickly releases the stored energy, pushing the valve core 7 to rebound upwards for automatic reset. This allows the oil guide groove 8 and oil guide hole 10 to reconnect with the oil delivery holes 5 on both sides, restoring the valve to the open state. Through the cooperation between the valve body 1, valve cavity 2, oil inlet 3, oil outlet 4, oil delivery hole 5, limit edge 6, valve core 7, oil guide groove 8, first inner hole 9, oil guide hole 10, plug 11, second inner hole 12, compression spring 13, and pressure relief hole 14, and by setting the pressure relief hole 14 below the oil delivery hole 5 on the oil outlet 4 side, the bottom of the valve cavity 2 is connected to the delivery pipe at one end of the oil outlet 4. During the process, the oil guide groove 8 separates from the oil delivery hole 5, and the valve core 7 seals the oil delivery hole 5. Under pressure, the fluid medium at the bottom of the valve chamber 2 enters the delivery pipe connected to the oil outlet 4 through the pressure relief hole 14. When the pressing pressure of the valve core 7 disappears, the compression spring 13 quickly releases the stored energy. Under pressure, the fluid medium in the delivery pipe connected to the oil outlet 4 enters the interior of the valve chamber 2 through the pressure relief hole 14, pushing the valve core 7 to rebound upwards for automatic reset. The pressure relief hole 14 provides an effective release channel between the valve chamber 2 and the oil outlet 4. During the opening and closing of the valve, the pressure balance inside the valve chamber 2 can be quickly and smoothly re-established, avoiding the formation of a pressure difference inside the valve chamber 2 and improving the smoothness of the valve core 7's lifting and lowering movement.This reduces fluid shock and energy loss that may be caused by sudden pressure changes, improves the response speed and accuracy of the fluid delivery system, and extends the service life of the switching valve;

[0024] Furthermore, an annular groove 15 is provided above the oil inlet 5 in the valve chamber 2, and an O-ring 16 is provided inside the annular groove 15. The O-ring 16 is slidably connected to the valve core 7, and a retaining ring 17 is provided inside the annular groove 15 at the top of the O-ring 16.

[0025] In the specific implementation process, it is worth noting that through the cooperation between valve body 1, valve cavity 2, valve core 7, annular groove 15, O-ring 16 and retaining ring 17, by setting O-ring 16 inside annular groove 15, O-ring 16 is made to fit tightly with valve body 1 and valve core 7. During the lifting and lowering of valve core 7, the sealing between valve body 1 and valve core 7 is maintained. By setting retaining ring 17 on top of O-ring 16, the stability of O-ring 16 in annular groove 15 is improved, further ensuring the sealing performance and durability of valve, effectively preventing leakage of medium under high pressure or temperature changes, and improving the overall reliability and service life of valve.

[0026] Furthermore, a connecting rod 18 is provided on the top of the valve core 7, and a pressure cap 19 is provided on the top of the connecting rod 18;

[0027] In the specific implementation process, it is worth noting that through the cooperation between the valve core 7, the connecting rod 18 and the pressure cap 19, the valve closure control is achieved by setting the pressure cap 19 above the valve core 7 and pressing the pressure cap 19. In addition, the top of the pressure cap 19 is covered with a rubber layer to improve the comfort and stability when pressing the pressure cap 19.

[0028] Furthermore, a sealing ring 20 is provided on the side of the valve body 1 and the plug 11 that are close to each other, and the sealing ring 20 abuts against the valve body 1 and the plug 11 respectively.

[0029] In the specific implementation process, it is worth noting that through the cooperation between valve body 1, plug 11 and sealing ring 20, and by setting sealing ring 20 between valve body 1 and plug 11, the sealing between valve body 1 and plug 11 is achieved, ensuring a tight fit between the two and improving the sealing performance and durability of the valve system.

[0030] Furthermore, the bottom of the plug 11 is provided with an internal hexagonal hole 21, which is used to tightly engage with a dedicated internal hexagonal wrench when the plug 11 is installed or removed.

[0031] In the specific implementation process, it is worth noting that the internal hexagonal hole 21 is used to closely cooperate with the special internal hexagonal wrench when the plug 11 is installed or removed, to ensure the stability of the plug 11 during the installation process and improve the valve maintenance efficiency, so that maintenance personnel can easily work in narrow or hard-to-reach spaces.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A birch sap transportation quick reset hydraulic switch valve with pressure relief structure, comprising a valve body (1), characterized in that: The valve body (1) has a valve cavity (2) inside. An oil inlet (3) is provided on one side of the valve body (1), and an oil outlet (4) is provided on the other side of the valve body (1). The oil inlet (3) and the oil outlet (4) are connected to the valve cavity (2) through an oil delivery hole (5). A pressure relief hole (14) is provided below the oil delivery hole (5) near the oil outlet (4). The two ends of the pressure relief hole (14) are connected to the valve cavity (2) and the oil outlet (4) respectively. A limit edge (6) is provided on the top of the valve body (1) in the valve cavity (2). A valve core (7) is movably connected inside the valve body (1). The valve core (7) is connected to the limit edge (6). The outer wall of the valve core (7) is provided with an oil guide groove (8), the inside of the valve core (7) is provided with a first inner hole (9), the valve core (7) is provided with oil guide holes (10) at equal intervals inside the oil guide groove (8), the oil guide holes (10) are connected to the first inner hole (9), the bottom of the valve body (1) is threaded with a plug (11), the top of the plug (11) is provided with a second inner hole (12), the inside of the first inner hole (9) is provided with a compression spring (13), the other end of the compression spring (13) is provided inside the second inner hole (12), and the two ends of the compression spring (13) are respectively abutted against the valve core (7) and the plug (11).

2. The quick reset hydraulic switch valve with pressure relief structure for birch sap transportation according to claim 1, characterized in that: The valve chamber (2) is provided with an annular groove (15) above the oil inlet (5). An O-ring (16) is provided inside the annular groove (15). The O-ring (16) is slidably connected to the valve core (7). A retaining ring (17) is provided inside the annular groove (15) at the top of the O-ring (16).

3. The quick reset hydraulic switch valve with pressure relief structure for birch sap transportation according to claim 1, characterized in that: A connecting rod (18) is provided on the top of the valve core (7), and a pressure cap (19) is provided on the top of the connecting rod (18).

4. The birch sap transport quick reset hydraulic switch valve with pressure relief structure according to claim 1, characterized in that: A sealing ring (20) is provided on the side of the valve body (1) and the plug (11) that are close to each other, and the sealing ring (20) abuts against the valve body (1) and the plug (11) respectively.

5. The birch sap transport quick return hydraulic switch valve with pressure relief structure according to claim 1, characterized in that: The bottom of the plug (11) is provided with an internal hexagonal hole (21).

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