Multi-channel valve

Abstract

The invention relates to the technical field of valves and discloses a multi-channel valve which comprises a valve shell, four connecting ports are formed in the outer surface of the valve shell in a penetrating mode, the four connecting ports are evenly distributed, and a switching mechanism is rotationally connected to an inner cavity of the valve shell. The switching mechanism is used for switching the communication state of the valve shell and comprises a rotating cylinder, the rotating cylinder is rotationally connected to an inner cavity of the valve shell, two connecting holes are formed in the outer surface of the rotating cylinder, and the two connecting holes are vertically distributed in the outer surface of the rotating cylinder; a rotating cylinder is fixedly connected to the upper surface of the valve shell, a rotating mechanism is arranged on the upper surface of the rotating cylinder and used for rotating the rotating cylinder, a limiting mechanism is fixedly connected to the upper surface of the valve shell and used for limiting the rotating cylinder, and the valve shell is arranged, and four connecting ports penetrate through the outer surface of the valve shell; and the effect of conveniently switching the communication states of the multiple pipelines is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, and specifically to a multi-channel valve. Background Art

[0002] A multi-channel valve is an industrial device that realizes multi-channel fluid control through an integrated design. Its core function is to complete the switching, distribution or mixing operations of multiple fluid channels through a single valve body. Such valves usually adopt a precisely machined valve core structure, and change the flow channel connection state through rotational or linear motion, and can operate stably in high-temperature, high-pressure and corrosive medium environments. The valve body material is mostly selected from special materials such as stainless steel, Hastelloy or ceramics to meet the requirements of different working conditions. The sealing structure adopts metal hard sealing or elastic polymer sealing technology to ensure zero leakage of the medium. In industrial processes, multi-channel valves significantly improve the system integration due to their structural advantages. Taking chemical production as an example, a single eight-way valve can replace the combination of multiple two-way valves in a traditional system, and automatically switch the input of reaction raw materials, the output of products and the cleaning pipeline through a preset program, reducing the volume of the reaction device by more than 40%. The four-channel aseptic valve used in the pharmaceutical industry realizes the automatic connection of culture medium filling, steam sterilization and sampling detection, reducing the risk of cross-contamination to the millionth level. Its drive system has generally adopted electric, pneumatic or hydraulic actuators, and the response speed can reach the millisecond level with the cooperation of a PLC control system.

[0003] When there are inconveniences in the operation of a multi-channel valve during the conversion of the connection state, it is often closely related to the structural design, medium characteristics or working conditions. When the matching precision between the valve core and the valve seat is insufficient, the moving parts may get stuck due to increased mechanical friction. Especially when transporting high-viscosity media or fluids containing solid particles, the suspended matter is likely to deposit at the turning points of the flow channels, resulting in a significant increase in the switching resistance of the valve core. Some multi-way valves will have problems with the decreased elasticity of the sealing material under low-temperature working conditions. If an auxiliary heating system is not configured, an excessive torque needs to be applied during manual operation to complete the station conversion, and there is a risk of actuator overload. In addition, for a hydraulically driven valve, when there is air resistance or oil pollution in the oil circuit system, the commutation speed will be significantly retarded, and in extreme cases, a "middle state" of stalling halfway may occur, resulting in abnormal pressure fluctuations in the pipeline system. For process links that require frequent switching, the mechanical limit structure of traditional multi-way valves may have positioning deviations due to long-term wear, and repeated adjustments are required to accurately align the interfaces, seriously affecting the production rhythm. Summary of the Invention

[0004] To achieve the above object, the present invention is realized through the following technical solutions: A multi-channel valve includes a valve housing. The outer surface of the valve housing is penetrated by connection ports. The number of the connection ports is four, and the four connection ports are evenly distributed. A conversion mechanism is rotatably connected to the inner cavity of the valve housing. This conversion mechanism is used to convert the connection state of the valve housing. The conversion mechanism includes a rotating cylinder. The rotating cylinder is rotatably connected to the inner cavity of the valve housing. Two connection holes are provided on the outer surface of the rotating cylinder. The two connection holes are vertically distributed on the outer surface of the rotating cylinder. A rotating mechanism is provided on the upper surface of the rotating cylinder. This rotating mechanism is used to rotate the rotating cylinder. A limiting mechanism is fixedly connected to the upper surface of the valve housing. This limiting mechanism is used to limit the rotating cylinder. By providing the valve housing and penetrating four connection ports on its outer surface, it can be respectively connected to four pipes, thereby connecting the four pipes together and finally enabling the pipes to have a flow. By providing the conversion mechanism, the connection state between the four connection ports and the four pipes can be changed, and the effect of connecting two pipes pairwise can be respectively achieved, achieving the effect of switching the water flow state. By providing the rotating cylinder and opening two connection holes on its outer surface, when it rotates and aligns with two connection ports, two pipes can be connected. By providing the rotating mechanism, it is convenient for the operator to rotate the rotating cylinder, and thus it is convenient to change the switching operation of the connection state of the conversion mechanism. By providing the limiting mechanism, the rotation angle of the rotating mechanism can be limited, and thus when the rotating cylinder rotates, the connection holes can be exactly aligned with the connection ports, thereby preventing the pipes from being unconnected due to misalignment of the holes.

[0005] Preferably, a first rolling bearing is fixedly connected to the upper surface of the rotating cylinder. The inner ring of the first rolling bearing is fixedly connected to a connecting plate. The connecting plate is fixedly connected to the inner wall of the valve housing. By providing the first rolling bearing, when the rotating cylinder rotates in the inner cavity of the valve housing, the rotating cylinder can rotate stably in the inner cavity of the valve housing, and thus when adjusting the connection state of the pipes, the rotating cylinder rotates stably.

[0006] Preferably, an orbital disk is fixedly connected to the upper surface of the rotating cylinder. A rotating ring is fixedly connected to the top surface of the inner cavity of the valve housing. The rotating ring is rotatably connected to the inner wall of the orbital disk. By providing the orbital disk, the rotating ring can be limited, and the rotating ring can rotate stably in the inner cavity of the orbital disk, thereby further increasing the stability of the rotation of the rotating cylinder.

[0007] Preferably, a discharge hole is formed in the bottom surface of the inner cavity of the rotating cylinder, and a blocking mechanism is arranged at the discharge hole formed in the bottom surface of the inner cavity of the rotating cylinder. The blocking mechanism is used to discharge the waste on the inner wall of the rotating cylinder. The blocking mechanism includes a threaded ring, and the threaded ring is fixedly connected to the discharge hole. By providing the blocking mechanism, the discharge hole of the rotating cylinder can be blocked, thereby preventing water from flowing out. At the same time, under adjustment, the liquid can be discharged from the discharge hole.

[0008] Preferably, a blocking column is rotatably connected to the inner cavity of the threaded ring. A threaded block is fixedly connected to the outer surface of the blocking column, and the threaded block is threadedly connected to the threaded ring. A rotating plate is fixedly connected to the lower surface of the blocking column. By providing the threaded ring, the threaded block can be limited. Thus, when the rotating plate is rotated, the blocking column drives the threaded block to rotate, thereby causing the blocking column to move up and down, and further changing the blocking effect on the threaded ring.

[0009] Preferably, a second rolling bearing is fixedly connected to the top end of the blocking column. A connecting frame is fixedly connected to the outer ring of the second rolling bearing, and a blocking disk is fixedly connected to the end of the connecting frame. The blocking disk is aligned with the hole on the outer surface of the rotating cylinder. By providing the second rolling bearing, the connecting frame does not rotate when the blocking column rotates. By providing the blocking disk, when the blocking column moves up and down, the holes of the rotating cylinder can be aligned. Thus, when they are in contact, the water flow in the inner cavity of the rotating cylinder is prevented from being discharged from the holes.

[0010] Preferably, the rotating mechanism includes a rotating column, and the rotating column is fixedly connected to the upper surface of the track disk. A rotating frame is fixedly connected to the top end of the rotating column, and a limiting frame is fixedly connected to the outer surface of the rotating frame. By providing the rotating column and the rotating frame, the rotating cylinder can be driven to rotate when rotating.

[0011] Preferably, a clamping ring is fixedly connected to the outer surface of the limiting frame, and the inner wall of the clamping ring is hexagonal. A handle is fixedly connected to the inner surface of the rotating frame. By providing the handle, it is convenient for the operator to rotate the rotating frame and the rotating column.

[0012] Preferably, the limiting mechanism includes a fixed frame, and the fixed frame is fixedly connected to the upper surface of the valve housing. A partition block is fixedly connected to the top end of the fixed frame, and a rotating ring is fixedly connected to the upper surface of the partition block. The rotating ring is rotatably connected to the inner cavity of the limiting frame. By providing the rotating ring, the limiting frame can be limited, so that the limiting frame can rotate stably on the outer surface of the rotating ring, and further the rotating frame rotates more stably.

[0013] Preferably, a limiting tube is fixedly connected to the outer surface of the partition block. A sliding rod is slidably connected to the inner cavity of the limiting tube. A spring is sleeved on the outer surface of the sliding rod. The bottom end of the sliding rod is fixedly connected with a pull ring. The top end of the sliding rod is fixedly connected with a hexagonal prism. The hexagonal prism is frictionally adapted to the clamping ring. By providing the limiting tube, the sliding rod can be limited, so that the sliding rod moves vertically up and down in the inner cavity of the limiting tube. By providing the pull ring, it is convenient for the operator to pull the sliding rod. By providing the spring, the sliding rod can be pulled, so that the hexagonal prism always moves upward. By providing the hexagonal prism, when the hexagonal prism contacts the inner cavity of the clamping ring, the rotating frame stops rotating, and thus when the pipeline is connected, the water flow direction does not change anymore.

[0014] The present invention provides a multi-channel valve. It has the following beneficial effects:

[0015] First, for this multi-channel valve, by providing a valve housing and penetrating four connection ports on its outer surface, it can be respectively connected to four pipelines, so that the four pipelines are connected together, and finally the pipeline can have fluid flow.

[0016] Second, for this multi-channel valve, by providing a conversion mechanism, the connection states of the four connection ports and the four pipelines can be changed, and the effect of connecting two pipelines pairwise can be respectively achieved, so as to achieve the effect of switching the fluid flow state. By providing a rotating cylinder and opening two connection holes on its outer surface, when it rotates and aligns with two connection ports, the two pipelines can be connected.

[0017] Third, for this multi-channel valve, by providing a rotating mechanism, it is convenient for the operator to rotate the rotating cylinder, and thus it can facilitate the switching work of changing the connection state of the conversion mechanism.

[0018] Fourth, for this multi-channel valve, by providing a limiting mechanism, the rotation angle of the rotating mechanism can be limited, and thus when the rotating cylinder rotates, the connection holes can be exactly aligned with the connection ports, thereby preventing the pipelines from not being connected due to misalignment of the holes.

[0019] Fifth, for this multi-channel valve, by providing a blocking mechanism, the discharge holes of the rotating cylinder can be blocked, thereby preventing water flow from flowing out. At the same time, under adjustment, the liquid can be discharged from the discharge holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is an external structural schematic diagram of a multi-channel valve of the present invention;

[0021] Figure 2 is a side view of the structure of a multi-channel valve of the present invention;

[0022] Figure 3 is a structural schematic diagram of the conversion mechanism of the present invention;

[0023] Figure 4 This is a schematic cross-sectional structure diagram of the rotating cylinder of the present invention;

[0024] Figure 5 This is a schematic cross-sectional structure diagram of the blocking mechanism of the present invention;

[0025] Figure 6 This is a schematic partial structure diagram of a multi-channel valve of the present invention;

[0026] Figure 7 This is a schematic structure diagram of the rotating mechanism of the present invention;

[0027] Figure 8 This is a schematic partial structure diagram of the rotating mechanism of the present invention;

[0028] Figure 9 This is a schematic structure diagram of the limiting mechanism of the present invention;

[0029] Figure 10 This is a schematic partial structure diagram of the limiting mechanism of the present invention.

[0030] In the figure: 1, valve housing; 2, connection port; 3, conversion mechanism; 4, rotating mechanism; 5, limiting mechanism; 32, connecting plate; 33, first rolling bearing; 34, rotating cylinder; 35, track disc; 36, rotating ring; 37, discharge hole; 38, blocking mechanism; 381, threaded ring; 382, blocking column; 383, threaded block; 384, rotating plate; 385, second rolling bearing; 386, connecting frame; 387, blocking disc; 41, rotating column; 42, rotating frame; 43, limiting frame; 44, clamping ring; 45, grip; 51, fixed frame; 52, spacer; 53, rotating ring; 54, limiting tube; 55, sliding rod; 56, spring; 57, pull ring; 58, hexagonal prism. Detailed implementation manners

[0031] The following further describes the present invention in detail in conjunction with the accompanying drawings and specific implementation manners. The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

[0032] As Figures 1 - 10As shown in the figure, the present invention provides a technical solution: a multi-channel valve, including a valve housing 1, a connection port 2 penetrates through the outer surface of the valve housing 1, the number of the connection ports 2 is four, and the four connection ports 2 are evenly distributed. A conversion mechanism 3 is rotatably connected to the inner cavity of the valve housing 1. The conversion mechanism 3 is used to convert the connection state of the valve housing 1. The conversion mechanism 3 includes a rotating cylinder 34, and the rotating cylinder 34 is rotatably connected to the inner cavity of the valve housing 1. Two connection holes are opened on the outer surface of the rotating cylinder 34, and the two connection holes are vertically distributed on the outer surface of the rotating cylinder 34; a rotating mechanism 4 is arranged on the upper surface of the rotating cylinder 34, and the rotating mechanism 4 is used to rotate the rotating cylinder 34. A limiting mechanism 5 is fixedly connected to the upper surface of the valve housing 1, and the limiting mechanism 5 is used to limit the rotating cylinder 34. By providing the valve housing 1 and penetrating four connection ports 2 through its outer surface, the four connection ports 2 can be respectively connected to four pipes, so that the four pipes are connected together, and finally the pipes are made to flow. By providing the conversion mechanism 3, the connection state of the four connection ports 2 and the four pipes can be changed, and the effect of connecting two pipes in pairs can be respectively achieved, so as to achieve the effect of switching the water flow state. By providing the rotating cylinder 34 and opening two connection holes on its outer surface, when the rotating cylinder 34 rotates and aligns with two connection ports 2, the two pipes can be connected. By providing the rotating mechanism 4, it is convenient for the operator to rotate the rotating cylinder 34, and thus it is convenient to change the switching operation of the connection state of the conversion mechanism 3. By providing the limiting mechanism 5, the rotation angle of the rotating mechanism 4 can be limited, and thus when the rotating cylinder 34 rotates, the connection holes can be exactly aligned with the connection ports 2, so as to prevent the pipes from being disconnected due to misalignment of the holes. The operator fixedly connects the four connection ports 2 to the ends of the four pipes respectively. When it is necessary to adjust the connection state of the pipes, the operator holds the grip 45 and rotates around the axis of the rotating column 41, so that the rotating column 41 drives the rotating cylinder 34 to rotate, and at the same time makes the holes on the outer surface of the rotating cylinder 34 align with the connection ports 2, then the two pipes can be connected.

[0033] The upper surface of the rotating cylinder 34 is fixedly connected with a first rolling bearing 33. The inner ring of the first rolling bearing 33 is fixedly connected with a connecting plate 32. The connecting plate 32 is fixedly connected to the inner wall of the valve housing 1. By providing the first rolling bearing 33, when the rotating cylinder 34 rotates in the inner cavity of the valve housing 1, the rotating cylinder 34 can rotate stably in the inner cavity of the valve housing 1. Furthermore, when adjusting the pipeline connection state, the rotating cylinder 34 rotates stably. The upper surface of the rotating cylinder 34 is fixedly connected with an orbital plate 35. The top surface of the inner cavity of the valve housing 1 is fixedly connected with a rotating ring 36. The rotating ring 36 is rotatably connected to the inner wall of the orbital plate 35. By providing the orbital plate 35, the rotating ring 36 can be limited, so that the rotating ring 36 rotates stably in the inner cavity of the orbital plate 35, further increasing the stability of the rotation of the rotating cylinder 34. A discharge hole 37 is provided at the bottom surface of the inner cavity of the rotating cylinder 34. A blocking mechanism 38 is provided at the discharge hole 37 provided at the bottom surface of the inner cavity of the rotating cylinder 34. The blocking mechanism 38 is used to discharge the waste on the inner wall of the rotating cylinder 34. The blocking mechanism 38 includes a threaded ring 381. The threaded ring 381 is fixedly connected to the discharge hole 37. By providing the blocking mechanism 38, the discharge hole 37 of the rotating cylinder 34 can be blocked, thereby preventing water flow from flowing out. At the same time, under adjustment, the liquid can be discharged from the discharge hole 37.

[0034] A blocking column 382 is rotatably connected to the inner cavity of the threaded ring 381. A threaded block 383 is fixedly connected to the outer surface of the blocking column 382. The threaded block 383 is threadedly connected to the threaded ring 381. A rotating plate 384 is fixedly connected to the lower surface of the blocking column 382. By providing the threaded ring 381, the threaded block 383 can be limited. Furthermore, when the rotating plate 384 is rotated, the blocking column 382 drives the threaded block 383 to rotate, thereby causing the blocking column 382 to move up and down, and then changing the blocking effect on the threaded ring 381. A second rolling bearing 385 is fixedly connected to the top end of the blocking column 382. A connecting frame 386 is fixedly connected to the outer ring of the second rolling bearing 385. A blocking disc 387 is fixedly connected to the end of the connecting frame 386. The blocking disc 387 is aligned with the hole on the outer surface of the rotating cylinder 34. By providing the second rolling bearing 385, when the blocking column 382 rotates, the connecting frame 386 does not rotate. By providing the blocking disc 387, when the blocking column 382 moves up and down, the hole of the rotating cylinder 34 can be aligned. Furthermore, when in contact, the water flow in the inner cavity of the rotating cylinder 34 can be prevented from being discharged from the hole. When it is necessary to discharge the dirt in the inner cavity of the rotating cylinder 34, the operator rotates the blocking column 382, so that the blocking column 382 drives the connecting frame 386 and the blocking disc 387 to rotate. Finally, the blocking disc 387 blocks the hole at the water outlet end, and the bottom discharge hole 37 is in an open state, so that the dirt in the inner cavity of the rotating cylinder 34 can be discharged.

[0035] The rotating mechanism 4 includes a rotating column 41. The rotating column 41 is fixedly connected to the upper surface of the track disk 35. The top end of the rotating column 41 is fixedly connected with a rotating frame 42. The outer surface of the rotating frame 42 is fixedly connected with a limiting frame 43. By setting the rotating column 41 and the rotating frame 42, the rotating cylinder 34 can be driven to rotate when rotating. The outer surface of the limiting frame 43 is fixedly connected with a clamping ring 44. The inner wall of the clamping ring 44 is hexagonal. The inner surface of the rotating frame 42 is fixedly connected with a handle 45. By setting the handle 45, it is convenient for the operator to rotate the rotating frame 42 and the rotating column 41.

[0036] The limiting mechanism 5 includes a fixed frame 51. The fixed frame 51 is fixedly connected to the upper surface of the valve housing 1. The top end of the fixed frame 51 is fixedly connected with a partition block 52. The upper surface of the partition block 52 is fixedly connected with a rotating ring 53. The rotating ring 53 is rotatably connected to the inner cavity of the limiting frame 43. By setting the rotating ring 53, the limiting frame 43 can be limited, so that the limiting frame 43 can rotate stably on the outer surface of the rotating ring 53, and then the rotating frame 42 rotates more stably. The outer surface of the partition block 52 is fixedly connected with a limiting tube 54. A sliding rod 55 is slidably connected to the inner cavity of the limiting tube 54. A spring 56 is sleeved on the outer surface of the sliding rod 55. The bottom end of the sliding rod 55 is fixedly connected with a pull ring 57. The top end of the sliding rod 55 is fixedly connected with a hexagonal prism 58. The hexagonal prism 58 is frictionally adapted to the clamping ring 44. By setting the limiting tube 54, the sliding rod 55 can be limited, so that the sliding rod 55 moves vertically up and down in the inner cavity of the limiting tube 54. By setting the pull ring 57, it is convenient for the operator to pull the sliding rod 55. By setting the spring 56, the sliding rod 55 can be pulled, and then the hexagonal prism 58 always moves upward. By setting the hexagonal prism 58, when the hexagonal prism 58 contacts the inner cavity of the clamping ring 44, the rotating frame 42 stops rotating, and then when the pipeline is connected, the water flow direction no longer changes.

[0037] Working principle: When in use, the operator fixedly connects the four connection ports 2 to the ends of four pipes respectively. When it is necessary to adjust the pipe connection state, the operator holds the grip 45 and rotates around the axis of the rotating column 41, so that the rotating column 41 drives the rotating cylinder 34 to rotate. At the same time, the holes on the outer surface of the rotating cylinder 34 are aligned with the connection ports 2, and then the two pipes can be connected. After that, the operator pulls the pull ring 57 to move the hexagonal prism 58 and the sliding rod 55 downward. Then, the hexagonal prism 58 is aligned with the clamping ring 44, and then the pull ring 57 is released to insert the hexagonal prism 58 into the inner cavity of the clamping ring 44, so as to prevent the rotating cylinder 34 from rotating in the inner cavity of the valve housing 1; when it is necessary to discharge the dirt in the inner cavity of the rotating cylinder 34, the operator rotates the plug column 382 to drive the connecting frame 386 and the plugging plate 387 to rotate. Finally, the plugging plate 387 plugs the holes at the water outlet end, and the discharge hole 37 at the bottom is in an open state, so that the dirt in the inner cavity of the rotating cylinder 34 can be discharged.

[0038] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative work shall fall within the protection scope of the present invention. The structures, devices and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A multi-channel valve, comprising a valve housing (1), the outer surface of the valve housing (1) being penetrated by connection ports (2), the number of the connection ports (2) being four, and the four connection ports (2) being evenly distributed, characterized in that: A conversion mechanism (3) is rotatably connected to the inner cavity of the valve housing (1). The conversion mechanism (3) is used to convert the communication state of the valve housing (1). The conversion mechanism (3) includes a rotating cylinder (34). The rotating cylinder (34) is rotatably connected to the inner cavity of the valve housing (1). Two connection holes are provided on the outer surface of the rotating cylinder (34), and the two connection holes are vertically distributed on the outer surface of the rotating cylinder (34). A rotating mechanism (4) is arranged on the upper surface of the rotating cylinder (34), and the rotating mechanism (4) is used to rotate the rotating cylinder (34). A limiting mechanism (5) is fixedly connected to the upper surface of the valve housing (1), and the limiting mechanism (5) is used to limit the rotating cylinder (34).

2. The multi-channel valve according to claim 1, characterized in that: A first rolling bearing (33) is fixedly connected to the upper surface of the rotating cylinder (34). A connecting plate (32) is fixedly connected to the inner ring of the first rolling bearing (33), and the connecting plate (32) is fixedly connected to the inner wall of the valve housing (1).

3. The multi-channel valve according to claim 2, characterized in that: A track plate (35) is fixedly connected to the upper surface of the rotating cylinder (34). A rotating ring (36) is fixedly connected to the top surface of the inner cavity of the valve housing (1), and the rotating ring (36) is rotatably connected to the inner wall of the track plate (35).

4. The multi-channel valve according to claim 3, characterized in that: A discharge hole (37) is provided on the bottom surface of the inner cavity of the rotating cylinder (34). A blocking mechanism (38) is arranged at the discharge hole (37) provided on the bottom surface of the inner cavity of the rotating cylinder (34). The blocking mechanism (38) is used to discharge the waste on the inner wall of the rotating cylinder (34). The blocking mechanism (38) includes a threaded ring (381), and the threaded ring (381) is fixedly connected to the discharge hole (37).

5. The multi-channel valve according to claim 4, characterized in that: A blocking column (382) is rotatably connected to the inner cavity of the threaded ring (381). A threaded block (383) is fixedly connected to the outer surface of the blocking column (382), and the threaded block (383) is threadedly connected to the threaded ring (381). A rotating plate (384) is fixedly connected to the lower surface of the blocking column (382).

6. The multi-channel valve according to claim 5, characterized in that: A second rolling bearing (385) is fixedly connected to the top end of the blocking column (382). A connecting frame (386) is fixedly connected to the outer ring of the second rolling bearing (385), and a blocking disc (387) is fixedly connected to the end of the connecting frame (386). The blocking disc (387) is aligned with the hole on the outer surface of the rotating cylinder (34).

7. A multi-channel valve according to claim 6, characterized in that: The rotating mechanism (4) includes a rotating column (41). The rotating column (41) is fixedly connected to the upper surface of the track plate (35). A rotating frame (42) is fixedly connected to the top end of the rotating column (41), and a limiting frame (43) is fixedly connected to the outer surface of the rotating frame (42).

8. A multi-channel valve according to claim 7, characterized in that: A clamping ring (44) is fixedly connected to the outer surface of the limiting frame (43). The inner wall of the clamping ring (44) is hexagonal. A handle (45) is fixedly connected to the inner surface of the rotating frame (42).

9. A multi-channel valve according to claim 8, characterized in that: The limiting mechanism (5) includes a fixing frame (51), the fixing frame (51) is fixedly connected to the upper surface of the valve housing (1), a partition block (52) is fixedly connected to the top end of the fixing frame (51), a rotating ring (53) is fixedly connected to the upper surface of the partition block (52), and the rotating ring (53) is rotatably connected to the inner cavity of the limiting frame (43).

10. A multi-channel valve according to claim 9, characterized in that: A limiting tube (54) is fixedly connected to the outer surface of the partition block (52), a sliding rod (55) is slidably connected to the inner cavity of the limiting tube (54), a spring (56) is sleeved on the outer surface of the sliding rod (55), a pull ring (57) is fixedly connected to the bottom end of the sliding rod (55), a hexagonal prism (58) is fixedly connected to the top end of the sliding rod (55), and the hexagonal prism (58) is frictionally adapted to the clamping ring (44).

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