Quantitative distribution valve group

Abstract

According to the quantitative distribution valve group provided by the utility model, one end of the valve bonnet is clamped on the pipe wall of the liquid inlet pipe, and the other end of the valve bonnet penetrates through the branch channel, extends to the other side of the liquid inlet pipe and is detachably connected with the valve body, so that the valve body and the valve bonnet can be fixed after being directly connected, the mounting process is simplified, and rapid assembly is realized; the assembly efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of valve control technology, and in particular to a quantitative distribution valve assembly. Background Technology

[0002] Distribution valves serve as an intermediate bridge connecting centrally installed power equipment to the main pipeline. They can provide branches for pneumatic equipment in supporting industrial automation control systems. Using distribution valves can reduce manual operation and facilitate the control of the on / off state of various pipelines.

[0003] Existing high-pressure distribution valves have one air inlet and several air outlets on their valve bodies. The air inlet is connected to the main air supply pipeline, and each air outlet is connected to a specific air vent via a regulating valve. The valve cap and valve body are detachably connected to the main pipeline. During assembly, the valve cap must be assembled first, followed by the valve body, resulting in a complex process and low efficiency. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a quantitative distribution valve assembly, which aims to solve the problem in the prior art where the valve cap and valve body are detachably connected to the main pipeline. During assembly, the valve cap needs to be assembled first, followed by the valve body, resulting in a complex process and low efficiency.

[0005] This utility model provides a quantitative dispensing valve assembly, including an inlet pipe, a valve cap, a valve body, and a connecting component. The inlet pipe has a main channel along its length and several branch channels communicating with the main channel along its height. The branch channels are evenly spaced along the length of the inlet pipe. Both the main channel and the branch channels are cylindrical hollow structures. The central axis of the main channel is perpendicular to and intersects the central axis of the branch channel. One end of the valve cap is snapped onto the wall of the inlet pipe, and the other end extends through the branch channel to the other side of the inlet pipe and is detachably connected to the valve body. The connecting component is disposed in the valve body. The valve cap has an inlet hole that communicates with the interior of the valve body and the branch channels. The valve body has an outlet hole that communicates with the interior of the valve body. The connecting component connects the outlet hole and the inlet hole.

[0006] In some embodiments of this utility model, one end of the valve cap is formed as a nut, and the other end is formed as an external thread. The nut is snapped onto the wall of the inlet pipe, and the other end is threadedly connected to the valve body through the external thread.

[0007] In some embodiments of this utility model, a flow guide groove is provided on the outer peripheral wall of the valve cap, the liquid inlet is provided on the bottom surface of the flow guide groove, and the diameter of the main channel is larger than the diameter of the bottom surface of the flow guide groove and smaller than the diameter of the branch channel.

[0008] In some embodiments of this utility model, the central axis of the liquid inlet is perpendicular to and intersects with the central axis of the main channel.

[0009] In some embodiments of this utility model, the conducting component includes an elastic member, a small pressure bead, a large pressure bead, and a striker. The large pressure bead has a first flow channel. The diameter of the small pressure bead is smaller than the diameter of the large pressure bead but larger than the diameter of the first flow channel. A second flow channel is formed inside the valve body. The elastic member is used to drive the small pressure bead to block the first flow channel and to drive the large pressure bead to block the second flow channel. The striker includes a top, a middle, and a tail arranged sequentially. The top is housed in the first flow channel and forms a first gap with the first flow channel. The middle is housed in the second flow channel and forms a second gap with the second flow channel. A gap is maintained between the middle and the large pressure bead. The tail extends outside the valve body. The tail is used to input power to drive the top to first push open the small pressure bead to open the first flow channel, and then drive the middle to push open the large pressure bead to open the second flow channel.

[0010] In some embodiments of this utility model, the elastic member includes a spring, a first limiting member, and a second limiting member. The first limiting member and the second limiting member are respectively located at both ends of the spring. The first limiting member abuts against the valve cap, and the spring is used to drive the second limiting member to abut against the small pressure ball.

[0011] In some embodiments of this utility model, the first limiting member is provided with a first limiting protrusion, the second limiting member is provided with a second limiting protrusion, and both the first limiting protrusion and the second limiting protrusion pass through the spring.

[0012] In some embodiments of this utility model, the second limiting member has a first concave surface, and the top has a second concave surface, both of which are in contact with the small pressure bead.

[0013] In some embodiments of this utility model, the valve body is provided with a sealant, which abuts against the outer peripheral wall of the tail.

[0014] In some embodiments of this utility model, the liquid outlet hole is threadedly connected to a nozzle.

[0015] Beneficial effects: This utility model provides a quantitative distribution valve assembly. Since one end of the valve cap is snapped onto the wall of the inlet pipe and the other end extends through the branch channel to the other side of the inlet pipe and is detachably connected to the valve body, the valve body and valve cap can be fixed directly after connection, simplifying the installation process, realizing rapid assembly, and improving assembly efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the quantitative distribution valve assembly of this utility model;

[0018] Figure 2 for Figure 1 Cross-sectional view along the AA direction;

[0019] Figure 3 for Figure 1 Cross-sectional view along the BB direction;

[0020] Figure 4 This is a schematic diagram of the internal structure of the liquid inlet pipe of this utility model.

[0021] In the diagram: 1. Inlet pipe; 11. Main channel; 12. Branch channel; 2. Valve cap; 21. Inlet hole; 22. Nut; 23. Guide groove; 3. Valve body; 31. Outlet hole; 32. Second guide channel; 4. Conducting assembly; 41. Elastic component; 411. Spring; 412. First limiting component; 413. Second limiting component; 414. First limiting protrusion; 415. Second limiting protrusion; 416. First concave surface; 417. Second concave surface; 42. Small pressure ball; 43. Large pressure ball; 431. First guide channel; 44. Impact pin; 441. Top; 442. Middle; 443. Tail; 5. Nozzle; 6. Sealant. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figures 1 to 4This utility model provides a quantitative dispensing valve assembly, including an inlet pipe 1, a valve cap 2, a valve body 3, and a connecting component 4. The inlet pipe 1 has a main channel 11 along its length direction and several branch channels 12 communicating with the main channel 11 along its height direction. The branch channels 12 are evenly spaced along the length direction of the inlet pipe 1. Both the main channel 11 and the branch channels 12 are cylindrical hollow structures. The central axis of the main channel 11 and the central axis of the branch channels 12 are perpendicular to each other and are in parallel. The valve cap 2 is attached to the wall of the inlet pipe 1 at one end, and extends through the branch channel 12 to the other side of the inlet pipe 1 and is detachably connected to the valve body 3. The connecting component 4 is located inside the valve body 3. The valve cap 2 has an inlet hole 21 that connects the interior of the valve body 3 with the branch channel 12. The valve body 3 has an outlet hole 31 that connects with the interior of the valve body 3. The connecting component 4 is used to connect the outlet hole 31 and the inlet hole 21.

[0024] In this distribution valve, the inlet can be connected to an external fluid input source, and the outlet can be connected to an external structure that requires fluid output. Fluid enters the valve body 3 through the inlet and flows out through the outlet 31. The main channel 11 is the primary flow path for the fluid and typically has a large cross-sectional area; the main flow rate passes through the main channel 11. The branch channel 12 extends from the main channel 11 and is used to distribute the flow or direct the fluid in different directions. In this application, the valve body 3 and valve cap 2 can be directly connected and fixed, simplifying the installation process, enabling rapid assembly, and improving assembly efficiency. When one of the regulating valves malfunctions and needs repair or replacement, the valve cap 2 can also be directly disassembled.

[0025] Preferably, one end of the valve cap 2 is formed as a nut 22, and the other end is formed as an external thread. The nut 22 is snapped onto the wall of the inlet pipe 1, and the other end is threaded to the valve body 3 through the external thread.

[0026] In some embodiments of this utility model, a flow guide groove 23 is provided on the outer peripheral wall of the valve cap 2, and the liquid inlet 21 is opened on the bottom surface of the flow guide groove 23. The diameter of the main channel 11 is larger than the diameter of the bottom surface of the flow guide groove 23 and smaller than the diameter of the branch channel 12. In this embodiment, the fluid in the main channel 11 can be distributed to each branch channel 12 through the flow guide groove 23, and then enter the valve body 3 through the liquid inlet 21 in each channel.

[0027] In some embodiments of this invention, the central axis of the inlet hole 21 is perpendicular to and intersects the central axis of the main channel 11. When the central axis of the inlet hole 21 overlaps with the central axis of the main channel 11, the upstream distribution valve receives more flow due to the higher initial pressure of the main channel 11, leading to a decrease in flow to the downstream valve. The inlet hole 21 in the flow direction experiences turbulence and eddies due to high-speed fluid impact, causing pressure fluctuations and even cavitation. However, when the central axis of the inlet hole 21 is perpendicular to the central axis of the main channel 11, it disperses pressure, resulting in a more uniform flow distribution across the valves. It also reduces the velocity gradient of the inlet hole 21, decreasing turbulence formation, improving flow stability, allowing the fluid to enter at a smaller angle, reducing energy loss, and improving system efficiency. Therefore, this embodiment promotes a more uniform distribution of fluid momentum within the main channel 11, ensuring consistent flow across all branches.

[0028] In some embodiments of this utility model, the conducting component 4 includes an elastic member 41, a small pressure bead 42, a large pressure bead 43, and a striking pin 44. The large pressure bead 43 has a first flow channel 431. The diameter of the small pressure bead 42 is smaller than the diameter of the large pressure bead 43 but larger than the diameter of the first flow channel 431. A second flow channel 32 is formed inside the valve body 3. The elastic member 41 is used to drive the small pressure bead 42 to block the first flow channel 431 and to drive the large pressure bead 43 to block the second flow channel 32. The striking pin 44 includes a top 441, a middle 442, and a tail arranged sequentially. 443, the top 441 is housed within the first flow channel 431 and forms a first gap with the first flow channel 431, the middle part 442 is housed within the second flow channel 32 and forms a second gap with the second flow channel 32, a gap is maintained between the middle part 442 and the large pressure bead 43, the tail 443 extends outside the valve body 3, the tail 443 is used to input power to drive the top 441 to first push open the small pressure bead 42 to open the first flow channel 431, and then drive the middle part 442 to push open the large pressure bead 43 to open the second flow channel 32.

[0029] The distribution valve is equipped with a sealing structure that controls the flow of fluid. When the sealing structure needs to be opened to allow the fluid to flow, the fluid itself will exert a large pressure on the sealing structure, requiring a large driving force to open it. This is especially true for long-distance fluid transport, where an even greater driving force is needed. If the driving force provided inside the distribution valve is insufficient, problems such as valve jamming and blockage can easily occur.

[0030] Because the elastic pressure provided by the elastic member 41 in this embodiment seals the small pressure bead 42 at the top of the first flow channel 431, and transmits the pressure to the large pressure bead 43 through the small pressure bead 42, the large pressure bead 43 also seals the top of the second flow channel 32. At this time, the fluid is blocked in the first flow channel 431 and the second flow channel 32 by the large pressure bead 43 and the small pressure bead 42, that is, the inlet and outlet are not connected. When it is necessary to output fluid from the outlet, the tail 443 drives the top 441 and the middle 442 to move upward. Since there is a gap between the middle 442 and the large pressure bead 43, the top 441 first drives the small pressure bead 42 to move upward, opening the first flow channel 431. At this time, the fluid enters the first gap, and the middle 442 and the large pressure bead 43 maintain a gap. As the top 441 and middle 442 continue to move upward, the middle 442, together with the large pressure bead 43, pushes the large pressure bead 43 upward, opening the second flow channel 32. Fluid enters the second gap and then exits from the outlet. During this process, because the volume of the large pressure bead 43 is larger than that of the small pressure bead 42, the pressure exerted by the fluid on the large pressure bead 43 is greater than the pressure exerted on the small pressure bead 42. The top 441 requires only a small force to push the small pressure bead 42 upward, opening the through hole. At this point, the fluid flows at a low flow rate, which helps to relieve pressure on the fluid and reduces the pressure on the large pressure bead 43. After the pressure inside the valve body 3 decreases, the middle 442 can then use a small force to push the large pressure bead 43 upward, opening the second flow channel 32 and enabling a large flow rate of fluid. When the power to the tail section 443 is removed, the pressure of the elastic member 41 can press down the small pressure ball 42 and the large pressure ball 43 to seal again. In this way, the large pressure ball 43 and the small pressure ball 42 can seal in stages, which can reduce the driving force required for fluid conduction, thereby effectively reducing the jamming and blockage that occurs during operation and improving the working stability of the distribution valve.

[0031] The tail section 443 can be driven by an external drive unit. The drive unit can take various forms, such as a cylinder, an electric lead screw, or a hydraulic cylinder. The drive unit and valve body 3 can be mounted on an external structure to maintain their relative fixation.

[0032] In some embodiments of this utility model, the elastic member 41 includes a spring 411, a first limiting member 412, and a second limiting member 413. The first limiting member 412 and the second limiting member 413 are respectively located at both ends of the spring 411. The first limiting member 412 abuts against the valve cap 2, and the spring 411 drives the second limiting member 413 to abut against the small pressure bead 42. It is worth noting that the first limiting member 412 needs to have a hollowed-out hole, and the second limiting member 413 needs to maintain a gap with the inner peripheral wall of the valve body 3, thereby ensuring that the liquid inlet hole 21 can communicate with the space inside the valve body 3.

[0033] In some embodiments of this utility model, the first limiting member 412 has a first limiting protrusion 414 protruding from it, and the second limiting member 413 has a second limiting protrusion 415 protruding from it. Both the first limiting protrusion 414 and the second limiting protrusion 415 pass through the spring 411. In this embodiment, the first limiting protrusion 414 and the second limiting protrusion 415 can limit the position of the spring 411 and prevent displacement that could cause the spring 411 to fail.

[0034] In some embodiments of this utility model, the second limiting member 413 has a first concave surface 416, and the top 441 has a second concave surface 417. Both the first concave surface 416 and the second concave surface 417 are in contact with the small pressure bead 42. In this embodiment, the first concave surface 416 and the second concave surface 417 can limit the position of the small pressure bead 42 and prevent it from shifting.

[0035] In some embodiments of this utility model, a sealant 6 is provided inside the valve body 3, and the sealant 6 abuts against the outer peripheral wall of the tail portion 443. In this embodiment, when the striking pin 44 moves up and down, gaps may be generated between it and the valve body 3. The sealant 6 can fill these gaps to prevent fluid leakage through the gaps, thereby ensuring a tight seal.

[0036] In some embodiments of this utility model, the liquid outlet 31 is threadedly connected to a nozzle 5. The nozzle 5 allows for easy connection to external pipes and other structural components, further improving the convenience of overall connection and assembly.

[0037] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the 442 technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A quantitative distribution valve assembly, characterized in that: The system includes an inlet pipe (1), a valve cap (2), a valve body (3), and a connecting assembly (4). The inlet pipe (1) has a main channel (11) along its length and several branch channels (12) communicating with the main channel (11) along its height. The branch channels (12) are evenly spaced along the length of the inlet pipe (1). Both the main channel (11) and the branch channels (12) are cylindrical hollow structures. The central axis of the main channel (11) is perpendicular to and intersects the central axis of the branch channels (12). One end of the valve cap (2) is secured. The other end is attached to the wall of the inlet pipe (1), and extends through the branch channel (12) to the other side of the inlet pipe (1) and is detachably connected to the valve body (3). The connecting component (4) is located inside the valve body (3). The valve cap (2) has an inlet hole (21) that connects the interior of the valve body (3) with the branch channel (12). The valve body (3) has an outlet hole (31) that connects with the interior of the valve body (3). The connecting component (4) is used to connect the outlet hole (31) and the inlet hole (21).

2. The metering valve assembly according to claim 1, characterized in that: One end of the valve cap (2) forms a nut (22), and the other end forms an external thread. The nut (22) is snapped onto the wall of the inlet pipe (1), and the other end is threaded to the valve body (3) through the external thread.

3. The quantitative distribution valve assembly according to claim 1, characterized in that: A flow guide groove (23) is provided on the outer peripheral wall of the valve cap (2), and the liquid inlet hole (21) is provided on the bottom surface of the flow guide groove (23). The diameter of the main channel (11) is larger than the diameter of the bottom surface of the flow guide groove (23) and smaller than the diameter of the branch channel (12).

4. The metering valve assembly according to claim 1, characterized in that: The central axis of the liquid inlet (21) is perpendicular to and intersects the central axis of the main channel (11).

5. The quantitative distribution valve assembly according to claim 1, characterized in that: The conductive assembly (4) includes an elastic member (41), a small pressure bead (42), a large pressure bead (43), and a striker (44). The large pressure bead (43) has a first flow channel (431). The diameter of the small pressure bead (42) is smaller than the diameter of the large pressure bead (43) but larger than the diameter of the first flow channel (431). The valve body (3) has a second flow channel (32). The elastic member (41) is used to drive the small pressure bead (42) to block the first flow channel (431) and to drive the large pressure bead (43) to block the second flow channel (32). The striker (44) includes a top (441), a middle part (442), and a tail part (443) arranged in sequence. The top (441) is housed within the first flow channel (431) and forms a first gap with the first flow channel (431). The middle part (442) is housed within the second flow channel (32) and forms a second gap with the second flow channel (32). A gap is maintained between the middle part (442) and the large pressure bead (43). The tail (443) extends outside the valve body (3). The tail (443) is used to input power to drive the top (441) to first push open the small pressure bead (42) to open the first flow channel (431), and then drive the middle part (442) to push open the large pressure bead (43) to open the second flow channel (32).

6. The metering valve assembly according to claim 5, characterized in that: The elastic member (41) includes a spring (411), a first limiting member (412) and a second limiting member (413). The first limiting member (412) and the second limiting member (413) are located at the two ends of the spring (411). The first limiting member (412) abuts against the valve cap (2). The spring (411) is used to drive the second limiting member (413) to abut against the small pressure bead (42).

7. The metering valve assembly according to claim 6, characterized in that: The first limiting member (412) has a first limiting protrusion (414) protruding on it, and the second limiting member (413) has a second limiting protrusion (415) protruding on it. Both the first limiting protrusion (414) and the second limiting protrusion (415) pass through the spring (411).

8. The quantitative distribution valve assembly according to claim 6, characterized in that: The second limiting member (413) has a first concave surface (416), and the top (441) has a second concave surface (417). Both the first concave surface (416) and the second concave surface (417) are in contact with the small pressure bead (42).

9. The metering valve assembly according to claim 5, characterized in that: The valve body (3) is provided with sealant (6), which abuts against the outer peripheral wall of the tail (443).

10. The metering valve assembly according to claim 1, characterized in that: The liquid outlet (31) is threadedly connected to a nozzle (5).

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