Multi-channel switching valve

Abstract

The utility model relates to the technical field of switching valves, and discloses a multi-channel switching valve which comprises a mounting plate, a multi-pipeline communicating part and a rotating switching part, and supporting fixing rods are fixedly mounted on the circumference of the outer wall of the top of the mounting plate at equal intervals; the multi-pipeline communicating part is arranged at the top of the supporting and fixing rod; and the rotary switching part is arranged in the multi-pipeline communicating part. Through the cooperation of the motor, the rotating rod, the rotating block, the switching through pipe, the main flowing pipe, the rotating block, the communicating ball body, the communicating water outlet hole, the sliding rod, the spring and the spring fixing block, leakage of fluid in the switching process can be effectively prevented, the sealing performance and stability of a system are ensured, it is ensured that the fluid cannot leak in the switching process, and the service life of the system is prolonged. The sealing performance and stability of a system are maintained, fluid loss and environmental pollution are reduced, external impurities are effectively prevented from entering the valve, internal parts are protected against pollution and damage, and the service life of the valve is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of switching valves, in particular to a multi-channel switching valve. Background Technique

[0002] In the early industrial production, the fluid transportation and control system was relatively simple, and the demand for multi-channel switching was not high. However, with the increasing complexity of production processes and the continuous improvement of automation, more precise and flexible fluid control methods are required. Traditional single-channel valves or simple switching devices can no longer meet the requirements of rapid and accurate switching of multiple fluid media, different flow rates and pressure conditions in complex systems. In the chemical industry, various chemical reaction processes require precise control of the introduction sequence and flow rate of different reagents, which has promoted the development of multi-channel switching valves.

[0003] When the sealing performance of the existing multi-channel switching valve is not good during the switching of sub-flows, leakage is likely to occur during the switching of sub-flows, resulting in fluid loss and environmental pollution, and even potential safety hazards may be caused. For example, in the case of toxic or flammable and explosive fluids, leakage may lead to serious consequences. Content of the Utility Model

[0004] The purpose of the utility model is to provide a multi-channel switching valve to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A multi-channel switching valve, including a mounting plate, a multi-pipeline connecting part, and a rotating switching part. The top outer wall of the mounting plate is fixedly installed with support fixing rods at equal circumferential intervals; the multi-pipeline connecting part is arranged on the top of the support fixing rods; the rotating switching part is arranged inside the multi-pipeline connecting part.

[0006] Preferably, the multi-pipeline connecting part specifically includes: a valve body fixedly installed on the top of the support fixing rods; the valve body is provided with sub-flow connecting holes at equal circumferential intervals, and a six-sided pipeline mounting block is connected to the outer wall of the valve body through the sub-flow connecting holes.

[0007] Preferably, the six-sided pipeline mounting block is provided with connecting holes at equal circumferential intervals, the connecting holes are adapted to the sub-flow connecting holes, the outer wall of the six-sided pipeline mounting block is connected with sub-flow pipes at equal circumferential intervals through the connecting holes, a connecting sealing block is sleeved on the outer wall of the sub-flow pipes, the connecting sealing block is fixedly installed on the outer wall of the six-sided pipeline mounting block, and a sealing cover is fixedly installed on the top of the valve body. The connecting sealing block is provided to effectively prevent fluid leakage at the pipeline connection and ensure the tightness of the system.

[0008] Preferably, a main flow communication port is provided on the sealing cover. A main flow connecting pipe is fixedly connected inside the main flow communication port. An inlet connecting nozzle is fixedly installed at the top of the connecting pipe. A sealing block is sleeved on the outer wall of the connecting pipe, and the sealing block is fixedly installed on the top outer wall of the sealing cover. The inlet connecting nozzle is provided to ensure a tight connection with the pipeline and prevent fluid leakage. The high-quality sealing design can maintain good sealing performance under various working conditions, reducing resource waste and environmental pollution.

[0009] Preferably, the rotation switching part specifically includes: a motor fixedly installed on the top of the mounting plate; a rotating block arranged inside the valve body; the output end of the motor is fixedly connected to a rotating rod, the other end of the rotating rod movably penetrates the bottom of the valve body and extends into the valve body, and the other end of the rotating rod is fixedly connected to the bottom outer wall of the rotating block.

[0010] Preferably, a switching through pipe is fixedly installed on the top of the rotating block. A main flow through pipe is communicated at the top of the switching through pipe. One end of the switching through pipe is rotatably connected to the inner wall of the valve body. A connecting pipe is communicated at the top of the main flow through pipe. The connecting pipe is connected to the main flow connecting pipe through the main flow communication port. A sliding hole is provided on the outer wall of one side of the switching through pipe.

[0011] Preferably, a sliding rod is slidably connected inside the sliding hole. A communicating sphere is slidably connected inside the switching through pipe. Communicating water outlet holes are equidistantly arranged in a circumferential manner on the communicating sphere. The communicating sphere is adapted to the sub-flow communication hole. The communicating sphere is provided, and a good seal can be formed between the sphere and the valve seat, effectively reducing the risk of leakage.

[0012] Preferably, one end of the sliding rod is fixedly connected to the communicating sphere. A spring fixing block is fixedly connected to the other end of the sliding rod. A spring is sleeved on the outer wall of the sliding rod. One end of the spring is fixedly connected to the outer wall of the spring fixing block, and the other end of the spring is fixedly connected to the outer wall of the switching through pipe.

[0013] The utility model provides a multi-channel switching valve. It has the following beneficial effects:

[0014] (1) Through the cooperation among the valve body, the six-sided pipeline mounting block, the sub-flow through pipe, the sealing cover, the sealing block, the connecting pipe, the connecting sealing block, and the inlet connecting nozzle, the utility model realizes the rapid switching and fluid distribution between different pipelines, concentrates the connection of multiple pipelines on one valve body, and reduces the complexity and chaos of pipeline connection. Compared with multiple individual valves and connecting pipe fittings, the multi-pipeline connection part makes the whole system more concise and compact.

[0015] (2) Through the cooperation among the motor, the rotating rod, the rotating block, the switching through pipe, the main flow through pipe, the rotating block, the communicating sphere, the communicating water outlet hole, the sliding rod, the spring and the spring fixing block, the present utility model can effectively prevent the leakage of fluid during the switching process, ensure the sealing performance and stability of the system, ensure that the fluid will not leak during the switching process, maintain the sealing performance and stability of the system, reduce fluid loss and environmental pollution, effectively prevent external impurities from entering the valve, protect the internal components from pollution and damage, and extend the service life of the valve. Description of the Drawings

[0016] Figure 1 It is a front view three-dimensional diagram of the overall structure of the present utility model;

[0017] Figure 2 It is a partial cross-sectional view of the multi-pipe connection part of the present utility model;

[0018] Figure 3 It is a partial cross-sectional view of the rotation switching part of the present utility model;

[0019] Figure 4 It is a partial cross-sectional view of the communicating sphere of the present utility model.

[0020] In the figure: 1 mounting plate, 2 support fixing rod, 3 multi-pipe connection part, 311 valve body, 312 six-sided pipe mounting block, 313 sub-flow through pipe, 314 sealing cover, 315 sealing block, 316 main flow connecting pipe, 317 connecting sealing block, 318 inlet connecting nozzle, 4 rotation switching part, 411 motor, 412 rotating rod, 413 rotating block, 414 switching through pipe, 415 main flow through pipe, 416 connecting pipe, 417 communicating sphere, 418 communicating water outlet hole, 419 sliding rod, 4111 spring, 4112 spring fixing block. Detailed Implementation Manner

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model and should not be construed as a limitation to the present utility model.

[0023] Embodiment 1

[0024] A preferred embodiment of the multi-channel switching valve provided by the present utility model is as follows Figures 1-4 As shown: A multi-channel switching valve includes a mounting plate 1, a multi-pipeline connecting part 3, and a rotating switching part 4. Support fixing rods 2 are fixedly installed equidistantly on the outer circumference of the top wall of the mounting plate 1; the multi-pipeline connecting part 3 is arranged on the top of the support fixing rods 2; the rotating switching part 4 is arranged inside the multi-pipeline connecting part 3.

[0025] The multi-pipeline connecting part 3 specifically includes: a valve body 311 fixedly installed on the top of the support fixing rods 2; sub-flow connecting holes are equidistantly arranged on the circumference of the valve body 311, and a six-sided pipeline mounting block 312 is connected to the outer wall of the valve body 311 through the sub-flow connecting holes.

[0026] Connecting holes are equidistantly arranged on the circumference of the six-sided pipeline mounting block 312, the connecting holes are adapted to the sub-flow connecting holes, sub-flow connecting pipes 313 are equidistantly connected to the outer wall of the six-sided pipeline mounting block 312 through the connecting holes, a connecting sealing block 317 is sleeved on the outer wall of the sub-flow connecting pipes 313, the connecting sealing block 317 is fixedly installed on the outer wall of the six-sided pipeline mounting block 312, and a sealing cover 314 is fixedly installed on the top of the valve body 311.

[0027] A main-flow connecting port is opened on the sealing cover 314, a main-flow connecting pipe 316 is fixedly connected inside the main-flow connecting port, an inlet connecting nozzle 318 is fixedly installed on the top of the connecting pipe, a sealing block 315 is sleeved on the outer wall of the connecting pipe 316, and the sealing block 315 is fixedly installed on the top outer wall of the sealing cover 314.

[0028] In the process of this embodiment, first install this device in the system pipeline through the inlet connecting nozzle 318 and the sub-flow connecting pipes 313. After the installation is completed, check whether the connection relationships between the sealing cover 314, the sealing block 315, the main-flow connecting pipe 316, and the connecting sealing block 317 are tightly connected and there is no leakage, so as to realize the rapid switching and fluid distribution between different pipelines. The connections of multiple pipelines are concentrated on one valve body, reducing the complexity and chaos of pipeline connections. Compared with multiple individual valves and connecting pipe fittings, the multi-pipeline connecting part makes the whole system more concise and compact.

[0029] Embodiment 2

[0030] On the basis of Embodiment 1, a preferred embodiment of the multi-channel switching valve provided by the present utility model is as follows Figures 1-4 As shown: The rotating switching part 4 specifically includes: a motor 411 fixedly installed on the top of the mounting plate 1; a rotating block 413 arranged inside the valve body 311;

[0031] The output end of the motor 411 is fixedly connected to a rotating rod 412. The other end of the rotating rod 412 movably penetrates the bottom of the valve body 311 and extends into the interior of the valve body 311. The other end of the rotating rod 412 is fixedly connected to the bottom outer wall of the rotating block 413.

[0032] A switching through pipe 414 is fixedly installed on the top of the rotating block 413. A main flow through pipe 415 is communicated with the top of the switching through pipe 414. One end of the switching through pipe 414 is rotatably connected to the inner wall of the valve body 311. A connecting pipe 416 is communicated with the top of the main flow through pipe 415. The connecting pipe 416 is connected to the main flow connecting pipe 316 through the main flow communication port. A sliding hole is formed on the outer wall of one side of the switching through pipe 414.

[0033] A sliding rod 419 is slidably connected inside the sliding hole. A communicating sphere 417 is slidably connected inside the switching through pipe 414. Communicating water outlet holes 418 are circumferentially and equidistantly formed on the communicating sphere 417. The communicating sphere 417 is adapted to the sub-flow communication hole.

[0034] One end of the sliding rod 419 is fixedly connected to the communicating sphere 417. The other end of the sliding rod 419 is fixedly connected to a spring fixing block 4112. A spring 4111 is sleeved on the outer wall of the sliding rod 419. One end of the spring 4111 is fixedly connected to the outer wall of the spring fixing block 4112. The other end of the spring 4111 is fixedly connected to the outer wall of the switching through pipe 414.

[0035] In the process of this embodiment, when the motor 411 is started, the rotating rod 412 is driven to rotate after the motor 411 is started. When the rotating rod 412 rotates, the rotating block 413 is driven, so that the switching through pipe 414 rotates inside the valve body 311. When the switching through pipe 414 rotates, the communicating sphere 417 is recovered into the switching through pipe 414 by the extrusion of the arc surface of the communicating sphere 417 against the inner wall of the valve body 311. When the communicating sphere 417 is recovered into the switching through pipe 414, the communicating sphere 417 drives the spring 4111 to stretch through the sliding rod 419 and the spring fixing block 4112. When the switching through pipe 414 rotates to the sub-flow communication hole to be switched, the motor 411 is shut down. The communicating sphere 417 enters the sub-flow communication hole through the elastic force of the spring 4111 and the sliding rod 419. The fluid conveyed by the system pipeline will enter the interior of the sub-flow pipe 313 through the communicating water outlet holes 418, which can effectively prevent the leakage of the fluid during the switching process, ensure the sealing performance and stability of the system, ensure that the fluid will not leak during the switching process, maintain the sealing performance and stability of the system, reduce fluid loss and environmental pollution, effectively prevent external impurities from entering the valve, protect the internal components from being contaminated and damaged, and extend the service life of the valve.

[0036] Working principle: First, install this device in the system pipeline through the inlet connecting nozzle 318 and the sub-flow pipe 313. After installation, check whether the connection between the sealing cover 314, the sealing block 315, the main flow connecting pipe 316, and the connecting sealing block 317 is tight and there is no leakage. Then start the motor 411. After the motor 411 starts, it drives the rotating rod 412 to rotate. When the rotating rod 412 rotates, it drives the rotating block 413, causing the switching through pipe 414 to rotate inside the valve body 311. When the switching through pipe 414 rotates, the communication sphere 417 is recovered into the inside of the switching through pipe 414 by the extrusion of the arc surface of the communication sphere 417 against the inner wall of the valve body 311. When the communication sphere 417 is recovered into the inside of the switching through pipe 414, the communication sphere 417 drives the spring 4111 to stretch through the slide rod 419 and the spring fixing block 4112. When the switching through pipe 414 rotates to the sub-flow communication hole that needs to be switched, stop the motor 411. The communication sphere 417 enters the sub-flow communication hole through the elastic force of the spring 4111 and the slide rod 419, and the fluid conveyed by the system pipeline enters the inside of the sub-flow pipe 313 through the communication water outlet hole 418.

[0037] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multi-channel switching valve, comprising a mounting plate (1), a multi-pipeline connecting part (3), and a rotating switching part (4), characterized in that, The top outer wall circumference of the mounting plate (1) is fixedly installed with support fixing rods (2) at equal intervals; the multi-pipe connecting part (3) is arranged on the top of the support fixing rods (2); the rotation switching part (4) is arranged inside the multi-pipe connecting part (3).

2. The multi-channel switching valve according to claim 1, wherein The multi-pipe connecting part (3) specifically includes: A valve body (311), fixedly installed on the top of the support fixing rod (2); Sub-flow connecting holes are circumferentially and equidistantly formed in the valve body (311), and a six-sided pipe mounting block (312) is connected to the outer wall of the valve body (311) through the sub-flow connecting holes.

3. The multi-channel switching valve according to claim 2, wherein, Connecting holes are circumferentially and equidistantly formed in the six-sided pipe mounting block (312), the connecting holes are adapted to the sub-flow connecting holes, sub-flow through pipes (313) are circumferentially and equidistantly connected to the outer wall of the six-sided pipe mounting block (312) through the connecting holes, a connecting seal block (317) is sleeved on the outer wall of the sub-flow through pipe (313), the connecting seal block (317) is fixedly installed on the outer wall of the six-sided pipe mounting block (312), and a seal cover (314) is fixedly installed on the top of the valve body (311).

4. The multi-channel switching valve according to claim 3, characterized in that, A main-flow connecting port is formed in the seal cover (314), a main-flow connecting pipe (316) is fixedly connected inside the main-flow connecting port, an inlet connecting nozzle (318) is fixedly installed at the top of the connecting pipe, a seal block (315) is sleeved on the outer wall of the connecting pipe (316), and the seal block (315) is fixedly installed on the top outer wall of the seal cover (314).

5. A multi-channel switching valve according to claim 1, characterized in that, The rotation switching part (4) specifically includes: A motor (411), fixedly installed on the top of the mounting plate (1); A rotating block (413), arranged inside the valve body (311); The output end of the motor (411) is fixedly connected with a rotating rod (412), the other end of the rotating rod (412) movably penetrates through the bottom of the valve body (311) and extends into the valve body (311), and the other end of the rotating rod (412) is fixedly connected with the bottom outer wall of the rotating block (413).

6. The multi-channel switching valve according to claim 5, characterized in that, A switching through pipe (414) is fixedly installed on the top of the rotating block (413), a main-flow through pipe (415) is connected to the top of the switching through pipe (414), one end of the switching through pipe (414) is rotatably connected with the inner wall of the valve body (311), a connecting pipe (416) is connected to the top of the main-flow through pipe (415), the connecting pipe (416) is connected to the main-flow connecting pipe (316) through the main-flow connecting port, and a sliding hole is formed in one side outer wall of the switching through pipe (414).

7. The multi-channel switching valve according to claim 6, wherein, A sliding rod (419) is slidably connected inside the sliding hole, a communicating sphere (417) is slidably connected inside the switching through pipe (414), communicating water outlet holes (418) are circumferentially and equidistantly formed in the communicating sphere (417), and the communicating sphere (417) is adapted to the sub-flow connecting holes.

8. A multi-channel switching valve according to claim 7, characterized in that, One end of the slide bar (419) is fixedly connected to the communication sphere (417). A spring fixing block (4112) is fixedly connected to the other end of the slide bar (419). A spring (4111) is sleeved on the outer wall of the slide bar (419). One end of the spring (4111) is fixedly connected to the outer wall of the spring fixing block (4112), and the other end of the spring (4111) is fixedly connected to the outer wall of the switching pipe (414).

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