A pressure divider valve

Abstract

This application relates to the field of valve technology and discloses a pressure-dividing valve, including a bracket, valve body, connector, spring frame, pressure adjusting screws, valve seats, valve cores, cylindrical springs, and connector plugs. During use, rotating the two pressure adjusting screws causes them to gradually approach the two valve seats, pushing the two valve cores continuously into the valve seats, thereby reducing the gap between the valve cores and the valve seats, and thus adjusting the pressure of the water flow to decrease. Conversely, as the two pressure adjusting screws gradually move away from the valve seats, the elastic force of the two springs pushes the two valve cores continuously out of the valve seats, thereby increasing the gap between the valve cores and the valve seats, and thus adjusting the pressure of the water flow to increase, thus regulating the pressure of the water flow.

Description

Technical Field

[0001] This application relates to the field of valve technology, for example to a pressure divider valve. Background Technology

[0002] A pressure-reducing valve is disclosed in related technology (Announcement No.: CN209762360U), including a valve seat, pipe joints, a movable valve, an inner sealing ring, an outer sealing ring, a limiting member, and an elastic member. The valve seat includes an inlet channel, an outlet channel, a chamber, a partition wall, and a guide pipe. The guide pipe has a front port leading to the inlet channel and a rear port leading to the chamber. The pipe joints are fixed to the inlet and outlet channels of the valve seat, respectively, and are connected to the inlet and outlet pipes. The movable valve is fitted onto the guide pipe of the valve seat, and includes a pipe body fitted onto the guide pipe, a baffle, and multiple connecting ribs. The inner sealing ring is fitted onto the guide pipe of the valve seat, and is sandwiched between the guide pipe and the pipe body of the movable valve. The outer sealing ring is fitted onto the pipe body of the movable valve, and is sandwiched between the pipe body and the valve seat. The limiting member is fixed inside the valve seat, and can block the movable valve. The limiting member has a through hole that connects the chamber and the outlet channel. The elastic element is located in the cavity of the valve seat and is used to elastically push the moving valve against the limiting element.

[0003] In implementing the above embodiments, at least the following problems were found in the related technology:

[0004] This pressure-reducing valve works by sealing the downstream port when the water pressure is too high and overcomes the elastic force of the spring element, thus preventing water from flowing through. When the water pressure is insufficient to overcome the elastic force, the valve opens the downstream port, allowing water to pass through and thus reducing pressure. However, because the elastic force provided by the spring element is fixed, the pressure of the passing water flow cannot be adjusted. Furthermore, it cannot achieve two-stage pressure reduction to ensure different pressures are used in different circuits.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0006] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0007] This disclosure provides a pressure-dividing valve to address the problems mentioned in the background section.

[0008] In some embodiments, the pressure-dividing valve includes: a bracket; a valve body mounted on the bracket, the valve body including two valve chambers extending along its length and a channel extending along its width, both valve chambers and the channel penetrating the valve body and communicating with the channel; connectors threadedly connected to one end of each of the two valve chambers; spring brackets threadedly connected to the other end of each of the two valve chambers; pressure-adjusting screws threadedly connected to the interiors of the two spring brackets; and valve seats mounted inside the two valve chambers and located at the junctions of the two connectors and the two pressure-adjusting screws. Between the rods, the valve seat includes a first through hole opened in its axial direction and a second through hole opened in its radial direction, and the plurality of second through holes are connected to the channel; valve cores are respectively installed inside the two valve chambers, one end of each valve core includes an annular protrusion located on its side and abuts against the two pressure regulating screws respectively, and the other end of each valve core gradually contracts and is extended into the interior of the two valve seats respectively; columnar springs are respectively fitted on the two valve cores and are respectively located between the two valve seats and the two annular protrusions; connector plugs are respectively threaded to both ends of the channel.

[0009] Optionally, it further includes: a first valve sleeve, which is respectively fitted onto the two valve cores and is located between the two cylindrical springs and the two valve seats.

[0010] Optionally, it further includes: a second valve sleeve, which is respectively fitted onto the two valve cores and is located between the two first valve sleeves and the two valve seats.

[0011] Optionally, it further includes: a sealing ring, which is fitted onto the outer side of the two valve seats and abuts against the two valve chambers respectively, and each of the two valve seats includes an annular groove on its outer side, and the sealing ring on each valve seat is located in the annular groove thereon.

[0012] Optionally, it further includes: a first gasket, which is respectively fitted onto the outer side of the two valve seats, wherein the sealing ring on each valve seat is located in the annular groove thereon and abuts against the sealing ring thereon.

[0013] Optionally, it further includes: a water-separating sleeve, located inside the two valve chambers respectively, and located between the two valve seats and the two connectors respectively.

[0014] Optionally, it further includes: a second gasket, which is respectively fitted into the two water distribution sleeves and is respectively clamped between the end faces of the two valve chambers and the two connectors.

[0015] Optionally, it further includes: butterfly springs, which are evenly fitted onto the two pressure regulating screws respectively, each of the pressure regulating screws being stepped, and the plurality of butterfly springs on each pressure regulating screw being located between its stepped surface and the valve body.

[0016] Optionally, it further includes: a first locking nut, which is threaded to the outer wall of each of the two spring frames and abuts against the valve body.

[0017] Optionally, it further includes: a second locking nut, which is threadedly connected to the two pressure adjusting screws respectively, located outside the two spring frames respectively, and abutting against the end faces of the two spring frames respectively.

[0018] The pressure-dividing valve provided in this disclosure embodiment can achieve the following technical effects:

[0019] This disclosure provides a pressure-dividing valve, including a bracket, a valve body, connectors, spring frames, pressure-adjusting screws, valve seats, valve cores, cylindrical springs, and connector plugs. The valve body is mounted on the bracket and includes two valve chambers extending along its length and a channel extending along its width. Both valve chambers and the channel penetrate the valve body and communicate with each other. Both valve chambers and the channel are used for fluid passage. Connectors are threaded to one end of each of the two valve chambers and are used for connection to pipelines. Spring frames are threaded to the other end of each of the two valve chambers and are used to support the pressure-adjusting screws. The pressure-adjusting screws are threaded into the interiors of the two spring frames and are rotatable relative to each spring frame. Valve seats are installed inside the two valve chambers and are located between the two connectors and the two pressure-adjusting screws, respectively, for controlling the fluid flow rate. The valve seats include a first through-hole extending along its axial direction and a second through-hole extending along its radial direction. Multiple second through-holes communicate with the channel and are used for fluid passage. The valve cores are installed inside the two valve chambers. One end of each valve core includes an annular protrusion on its side, which abuts against two adjusting screws. The other ends of both valve cores gradually contract and extend into the two valve seats, also used to control fluid flow. Cylindrical springs are fitted onto the two valve cores, located between the two valve seats and the two annular protrusions, respectively, providing elastic force. Connector plugs are threaded to both ends of the channel, used to open or close the channel.

[0020] During operation, when both ends of the channel are closed, the fluid enters through the first connector, undergoes secondary pressure reduction through the two valve seats and two valve cores, and then exits through the other connector. When one end of the channel is closed and the other end is open, the fluid enters through the first connector, undergoes secondary pressure reduction through the two valve seats and two valve cores, and then exits through the other connector. Furthermore, the fluid that has undergone initial pressure reduction can also exit through the open end of the channel. Similarly, when both ends of the channel are open, the fluid enters through the first connector, undergoes secondary pressure reduction through the two valve seats and two valve cores, and then exits through the other connector. Furthermore, the fluid that has undergone initial pressure reduction is also distributed through both ends of the pipeline, ensuring that different branches can use different pressures. Simultaneously, rotating the two pressure regulating screws, as they gradually approach the two valve seats, pushes the two valve cores continuously into the two valve seats, thereby reducing the gap between the two valve cores and the two valve seats, and thus adjusting the pressure that can pass through the water flow. As the two pressure regulating screws gradually move away from the two valve seats, the elastic force of the two springs pushes the two valve cores to move out of the two valve seats, thereby increasing the gap between the two valve cores and the two valve seats, and thus increasing the pressure of the water flow, so as to regulate the pressure of the water flow.

[0021] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are considered similar elements. The drawings do not constitute a limitation of scale, and wherein:

[0023] Figure 1 This is a top view schematic diagram of a pressure divider valve provided in an embodiment of this disclosure;

[0024] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure at point AA;

[0025] Figure 3 yes Figure 2 Enlarged structural diagram at point B;

[0026] Figure 4 yes Figure 2 Enlarged structural diagram at point C;

[0027] Figure 5 This is an enlarged structural diagram of point D in convex structure 2.

[0028] Figure label:

[0029] 1. Bracket; 2. Valve body; 3. Connector; 4. Spring bracket; 5. Pressure adjusting screw; 6. Valve seat; 7. Valve core; 8. Cylindrical spring; 9. Connector plug; 10. First valve sleeve; 11. Second valve sleeve; 12. Sealing ring; 13. First gasket; 14. Water distribution sleeve; 15. Second gasket; 16. Butterfly spring; 17. First locking nut; 18. Second locking nut. Detailed Implementation

[0030] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0031] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0032] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better describing the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this disclosure according to the specific circumstances.

[0033] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0034] Unless otherwise stated, the term "multiple" means two or more.

[0035] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0036] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0038] Combination Figures 1 to 5 As shown, this embodiment of the disclosure provides a pressure-dividing valve, including a bracket 1, a valve body 2, a connector 3, a spring frame 4, a pressure regulating screw 5, a valve seat 6, a valve core 7, a cylindrical spring 8, and a connector plug 9. The valve body 2 is mounted on the bracket 1. The valve body 2 includes two valve chambers extending along its length and a channel extending along its width. Both valve chambers and the channel penetrate the valve body 2 and are connected to the channel. Both valve chambers and the channel are used for fluid passage. The connector 3 is threaded to one end of each of the two valve chambers and is used for connection to a pipeline. The spring frame 4 is threaded to the other end of each of the two valve chambers and is used to support the pressure regulating screw 5. The pressure regulating screw 5 is threaded into the interior of each of the two spring frames 4 and can rotate relative to each of the two spring frames 4. The valve seat 6 is installed inside each of the two valve chambers and is located between each of the two connectors 3 and the two pressure regulating screws 5, respectively, for controlling the flow rate of the fluid. Valve seat 6 includes a first through hole in its axial direction and a second through hole in its radial direction. Multiple second through holes communicate with the channel and are used for fluid passage. Valve cores 7 are respectively installed inside the two valve chambers. One end of each valve core 7 includes an annular protrusion on its side, which abuts against two pressure regulating screws 5. The other ends of each valve core 7 gradually contract and extend into the interior of the two valve seats 6, also used to control the fluid flow rate. Cylindrical springs 8 are respectively fitted onto the two valve cores 7 and located between the two valve seats 6 and the two annular protrusions, providing elastic force. Connector plugs 9 are threaded to both ends of the channel, used to open or close the two ends of the channel respectively.

[0039] This disclosure provides a pressure-dividing valve. When both ends of the channel are closed, fluid enters from the first connector 3, undergoes secondary pressure reduction through the two valve seats 6 and two valve cores 7, and then exits from the other connector 3. When one end of the channel is closed and the other end is open, fluid enters from the first connector 3, undergoes secondary pressure reduction through the two valve seats 6 and two valve cores 7, and then exits from the other connector 3. Furthermore, fluid that has undergone primary pressure reduction can also be discharged through the open end of the channel. Similarly, when both ends of the channel are open, fluid enters from the first connector 3, undergoes secondary pressure reduction through the two valve seats 6 and two valve cores 7, and then exits from the other connector 3. Furthermore, fluid that has undergone primary pressure reduction is also discharged through both ends of the pipeline, thus ensuring that different branches can use different pressures. Simultaneously, driving the two pressure-adjusting screws 5 to rotate, through the interaction between the threads, as the two pressure-adjusting screws 5 gradually approach the two valve seats 6, they can push the two valve cores 7 to continuously extend into the two valve seats 6, thereby reducing the gap between the two valve cores 7 and the two valve seats 6, and thus adjusting the pressure that can pass through the water flow. As the two pressure regulating screws 5 gradually move away from the two valve seats 6, the elastic force of the two springs pushes the two valve cores 7 to move out of the two valve seats 6, thereby increasing the gap between the two valve cores 7 and the two valve seats 6, and thus adjusting the pressure of the water flow to increase, so as to regulate the pressure of the water flow.

[0040] When applied to high-pressure cleaning equipment, such as high-pressure water cleaning equipment for solar photovoltaic panels, this pressure-dividing valve can be used to switch between different cleaning circuits. For example, when it is necessary to switch the high-pressure water spray mode (such as switching from a rotary nozzle to a direct spray nozzle), the valve can quickly achieve high-pressure water supply through different channels, improving cleaning efficiency and flexibility.

[0041] When applied in the petrochemical industry, this pressure-dividing valve can be used in high-pressure oil and gas pipelines to switch between different transport paths, facilitating pipeline maintenance, repair, and the diversion or merging of media. Simultaneously, in the feeding and discharging systems of high-pressure reactors, it can also control fluid pathways, ensuring the stable progress of the reaction process.

[0042] When applied to hydraulic transmission systems, in high-pressure hydraulic equipment, this pressure divider valve can be used to switch the flow direction of hydraulic oil, control the movement direction of hydraulic actuators (such as hydraulic cylinders and hydraulic motors), and realize the conversion of various actions of the equipment, such as the control of boom extension, rotation and other actions of construction machinery.

[0043] When applied in the energy sector, in high-pressure operations such as high-pressure water jet mining and high-pressure water cutting, this pressure-dividing valve can flexibly switch the high-pressure water path to meet the needs of different operating scenarios and ensure the continuity and efficiency of operations.

[0044] Optionally, the two adjusting screws can be driven manually, hydraulically, pneumatically, or electrically. Wherein:

[0045] Manual drive allows the valve core to rotate or move via a handwheel or handle. It has a simple structure and is suitable for applications with low operating frequency and low requirements for switching speed.

[0046] Hydraulic drive uses high-pressure hydraulic oil to push the piston and drive the valve core to move. It has the characteristics of large output force, smooth operation and fast response speed. It is suitable for high-pressure, large-diameter dual-pass high-pressure switching valves.

[0047] Pneumatic drive uses compressed air as a power source to drive the cylinder to move the valve core. It has low cost, is easy to maintain, and is suitable for environments with high safety requirements, such as flammable and explosive environments.

[0048] Electric drive can drive the valve core to move through a transmission mechanism such as a motor, gears, or lead screws, enabling remote control and automated operation, and is suitable for modern industrial control systems.

[0049] Optionally, combined Figure 2 and Figure 3 As shown, it also includes a first valve sleeve 10. The first valve sleeve 10 is respectively fitted onto the two valve cores 7 and is located between the two cylindrical springs 8 and the two valve seats 6.

[0050] In this embodiment, the first valve sleeve 10 serves as a guide and support to improve the accuracy of the valve core 7 during movement, and also provides a sealing function.

[0051] Optionally, combined Figure 2 and Figure 3 As shown, it also includes a second valve sleeve 11. The second valve sleeve 11 is respectively fitted onto the two valve cores 7 and is located between the two first valve sleeves 10 and the two valve seats 6.

[0052] In this embodiment, the second valve sleeve 11 also serves as a guide and support to improve the accuracy of the valve core 7 during movement, while also providing a sealing function.

[0053] Optionally, combined Figure 2 and Figure 3 As shown, it also includes a sealing ring 12. The sealing ring 12 is fitted onto the outer surfaces of the two valve seats 6 and abuts against the two valve chambers respectively. Each valve seat 6 includes an annular groove on its outer surface, which serves as a limiting groove. The sealing ring 12 on each valve seat 6 is located within its annular groove to improve the positional accuracy of the sealing ring 12.

[0054] In this embodiment of the disclosure, the sealing ring 12 is used to improve the sealing between the valve seat 6 and the valve cavity to prevent fluid from flowing out from the gap between the valve seat 6 and the valve cavity.

[0055] Optionally, combined Figure 2 and Figure 3 As shown, it also includes a first gasket 13. The first gasket 13 is respectively fitted onto the outer side of the two valve seats 6, and the sealing ring 12 on each valve seat 6 is located in the annular groove thereon, and abuts against the sealing ring 12 thereon.

[0056] In this embodiment of the present disclosure, the first gasket 13 is used to limit the sealing ring 12 so that the sealing ring 12 is tightly installed in the annular groove.

[0057] Optionally, combined Figure 2 and Figure 4 As shown, it also includes a water distribution sleeve 14. The water distribution sleeve 14 is located inside the two valve chambers respectively, and is located between the two valve seats 6 and the two connectors 3 respectively.

[0058] In this embodiment of the disclosure, one end of each of the two water-dividing sleeves 14 abuts against the valve seat 6, and the other end abuts against the connector 3, so as to determine the relative positions of the two valve seats 6 and the two connectors 3.

[0059] Optionally, combined Figure 2 and Figure 4 As shown, it also includes a second gasket 15. The second gasket 15 is respectively fitted into the two water distribution sleeves 14 and is respectively clamped between the end faces of the two valve chambers and the two connectors 3.

[0060] In this embodiment of the disclosure, both second gaskets 15 serve to improve sealing and prevent the surfaces of the two valve seats 6 from being worn and damaged by the two connectors 3.

[0061] Optionally, combined Figure 2 and Figure 5 As shown, it also includes a butterfly spring 16. The butterfly springs 16 are evenly fitted onto the two pressure regulating screws 5, each pressure regulating screw 5 is stepped, and the multiple butterfly springs 16 on each pressure regulating screw 5 are located between its stepped surface and the valve body 2.

[0062] In this embodiment, multiple butterfly springs 16 are used to provide elastic force so that the threads of the two spring holders 4 are tightly engaged with the threads of the two valve bodies 2 and the two pressure regulating screws 5, thereby improving the sealing effect.

[0063] Optionally, combined Figure 1 and Figure 2 As shown, it also includes a first locking nut 17. The first locking nuts 17 are threaded to the outer walls of the two spring brackets 4 respectively, and both abut against the valve body 2.

[0064] In this embodiment, both first locking nuts 17 serve to prevent loosening, thereby improving the fixing effect of the two spring frames 4.

[0065] Optionally, combined Figure 1 and Figure 2 As shown, it also includes a second locking nut 18. The second locking nut 18 is threaded to the two adjusting screws 5 respectively, located outside the two spring frames 4 respectively, and abuts against the end faces of the two spring frames 4 respectively.

[0066] In this embodiment, both second locking nuts 18 are used to prevent loosening, thereby improving the fixing effect of the two pressure adjusting screws 5.

[0067] The foregoing description and accompanying drawings have fully illustrated embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of this disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A pressure dividing valve, characterized by, include: support; A valve body is mounted on the bracket. The valve body includes two valve chambers extending along its length and a channel extending along its width. Both valve chambers and the channel penetrate the valve body, and both valve chambers are connected to the channel. The connectors are threadedly connected to one end of each of the two valve chambers; A spring frame is threadedly connected to the other end of each of the two valve chambers; The pressure regulating screws are threadedly connected to the interiors of the two spring frames respectively; The valve seat is installed inside the two valve chambers respectively and is located between the two connectors and the two pressure regulating screws. The valve seat includes a first through hole opened in its axial direction and a second through hole opened in its radial direction. The plurality of second through holes are connected to the channel. The valve cores are respectively installed inside the two valve chambers. One end of each valve core includes an annular protrusion on its side, which abuts against the two pressure regulating screws. The other end of each valve core gradually contracts and extends into the interior of the two valve seats. A cylindrical spring is respectively fitted onto the two valve cores and is located between the two valve seats and the two annular protrusions; The connector plugs are threaded to both ends of the channel.

2. A pressure reducing valve according to claim 1, wherein Also includes: The first valve sleeve is respectively fitted onto the two valve cores and is located between the two cylindrical springs and the two valve seats.

3. A pressure reducing valve according to claim 2, wherein Also includes: The second valve sleeve is fitted onto each of the two valve cores and is located between the two first valve sleeves and the two valve seats.

4. The pressure reducing valve according to claim 1, wherein Also includes: A sealing ring is fitted onto the outer side of each of the two valve seats and abuts against each of the two valve chambers. Each of the two valve seats includes an annular groove on its outer side, and the sealing ring on each valve seat is located in the annular groove thereon.

5. A pressure-dividing valve according to claim 4, characterized in that, Also includes: The first gasket is respectively fitted onto the outer side of the two valve seats, and the sealing ring on each valve seat is located in the annular groove thereon and abuts against the sealing ring thereon.

6. A pressure reducing valve according to claim 1, wherein Also includes: The water distribution sleeves are located inside the two valve chambers respectively, and are located between the two valve seats and the two connectors respectively.

7. A pressure reducing valve according to claim 6, wherein Also includes: The second gasket is fitted onto the two water distribution sleeves respectively, and is clamped between the end faces of the two valve chambers and the two connectors respectively.

8. A partial pressure valve according to any one of claims 1 to 7, characterized in that Also includes: The butterfly springs are evenly fitted onto the two pressure regulating screws, each of which is stepped, and the multiple butterfly springs on each pressure regulating screw are located between its stepped surface and the valve body.

9. A partial pressure valve according to any one of claims 1 to 7, characterized in that Also includes: The first locking nut is threaded to the outer wall of each of the two spring frames and abuts against the valve body.

10. A partial pressure valve according to any one of claims 1 to 7, characterized in that Also includes: The second locking nut is threaded to the two adjusting screws respectively, located outside the two spring frames respectively, and abuts against the end faces of the two spring frames respectively.

Images