Multi-channel anti-block belt origin calibration rotary valve

Abstract

The utility model provides a kind of multi-channel anti-adhesion belt original point calibration's rotary cutting valve, it includes valve shell, valve cover, rotary drive mechanism, rotating shaft, rotary cutting piece and elastic member.Valve cover and valve shell are connected and form the closed structure with conveying cavity, rotating shaft and rotary cutting piece rotation setting in valve shell, one end of rotating shaft is connected with the output end of rotary drive mechanism, the other end of rotating shaft is connected with rotary cutting piece.Elastic member is sleeved in the outer periphery of rotating shaft.Valve cover is provided with a plurality of first delivery holes of communicating conveying cavity, the side of valve shell is provided with second delivery hole of communicating conveying cavity, rotary cutting piece covers a plurality of first delivery holes, rotary cutting piece rotation makes that the position of rotary cutting piece avoids mouth switching and different first delivery hole butt joint.The utility model discloses rotary cutting valve by being provided with first delivery hole on valve cover, the side of valve shell is provided with second delivery hole, to reduce the sealing structure required by rotating shaft extension, reduce cost, disassembly is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of valves, and in particular to a multi-channel anti-sticking rotary valve with origin calibration. Background Technology

[0002] Rotary cutting valves, as fluid control devices, are widely used in many fields such as petroleum, chemical, home appliance, and dairy and beverage processing equipment. Many existing rotary cutting valves extend the rotating shaft to the outside of the valve body and have a conveying channel inside the shaft. This extension necessitates a sealing structure between the rotating shaft and the valve body, making disassembly and assembly more cumbersome, labor-intensive, and costly.

[0003] Therefore, it is necessary to provide a multi-channel anti-sticking rotary valve with origin calibration to solve the above-mentioned technical problems. Utility Model Content

[0004] This invention provides a multi-channel anti-adhesion rotary valve with origin calibration to solve the problems of inconvenient disassembly and assembly and high cost of existing rotary valves.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a multi-channel anti-adhesion rotary cutting valve with origin calibration, which includes: valve body, valve cover, rotary drive mechanism, rotary shaft, rotary cutting blade and elastic element; The valve cover is connected to one end of the valve housing and forms a closed structure with a conveying cavity. The rotary drive mechanism is connected to one end of the outer side of the valve housing. The rotary shaft and the rotary blade are rotatably disposed inside the valve housing. One end of the rotary shaft is connected to the output end of the rotary drive mechanism, and the other end of the rotary shaft is connected to the rotary blade. The valve cover is provided with a plurality of first conveying holes communicating with the conveying chamber, and one side of the valve housing is provided with a second conveying hole communicating with the conveying chamber. The rotary blade covers a plurality of the first conveying holes, and the rotary blade is provided with a clearance opening. The rotary blade rotates to allow the clearance opening to switch to connect with different first conveying holes. The elastic element is sleeved on the outer periphery of the rotating shaft, and the outer periphery of the rotating shaft is provided with a limiting protrusion. The elastic element is located between the side of the rotary slice away from the first conveying hole and the limiting protrusion.

[0006] In this invention, the multi-channel anti-sticking rotary cutting valve with origin calibration further includes a wear-resistant plate, which is disposed between the rotary cutting plate and the valve cover. The wear-resistant plate is provided with first connecting holes that correspond one-to-one with the plurality of first conveying holes.

[0007] The rotary blade is made of high-strength wear-resistant plastic material, and the wear-resistant sheet is made of ceramic material.

[0008] In addition, the multi-channel anti-adhesion rotary valve with origin calibration also includes a sealing gasket, which is disposed between the wear-resistant plate and the valve cover, and extends between the valve body and the valve cover. The sealing gasket is provided with second connecting holes that correspond one-to-one with the plurality of first connecting holes.

[0009] In this invention, the valve cover is provided with a plurality of first conveying pipes that are connected one by one to the first conveying holes. Some of the first conveying pipes are axial conveying pipes with an extension direction parallel to the rotation axis, and some of the first conveying pipes are radial conveying pipes with an extension direction perpendicular to the rotation axis. Each of the radial conveying pipes is disposed between two of the axial conveying pipes.

[0010] Furthermore, the radial delivery pipe portion is embedded within the valve cover.

[0011] In this invention, the clearance opening penetrates the circumferential side of the rotary slice, and the area of ​​the clearance opening is larger than the area of ​​the first connecting hole.

[0012] In this invention, the rotary slice is interference-fitted onto the outer periphery of one end of the rotating shaft, and a connecting groove for connecting the rotary slice is provided on the outer periphery of one end of the rotating shaft. A shrinkage groove is provided radially through one end of the rotating shaft, and the shrinkage groove passes through the end face of the rotating shaft away from the rotating drive mechanism.

[0013] In this invention, the multi-channel anti-adhesion rotary valve with origin calibration also includes an isolation cover, a lever, and a micro switch; The isolation cover is disposed between the valve body and the rotary drive mechanism, forming a mounting cavity between the isolation cover and the valve body. The rotary shaft passes through the mounting cavity, the lever is located inside the mounting cavity, and the lever is fixedly connected to the rotary shaft. The micro switch is fixedly disposed inside the mounting cavity and is located on the rotation trajectory of the lever.

[0014] In this utility model, a boss is provided on the valve housing, the rotating shaft passes through the boss, and a sealing ring is sleeved on the outer periphery of the rotating shaft. The sealing ring is located between the rotating shaft and the inner wall of the boss.

[0015] Compared with the prior art, the advantages of this utility model are as follows: The multi-channel anti-adhesion rotary valve with origin calibration of this utility model has a first conveying hole on the valve cover and a second conveying hole on one side of the valve body. At the same time, a sealing gasket can be set to seal both the wear-resistant plate and the valve cover, as well as the valve body and the valve cover. This reduces the sealing structure required for the extension of the rotating shaft, lowers the cost, and makes disassembly and assembly more convenient.

[0016] In addition, the outer portion of the first delivery pipe of the valve cover is set as an axial delivery pipe, and the portion of the first delivery pipe is set as a radial delivery pipe, making the structure more compact. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments are briefly introduced below. The drawings described below are only the corresponding drawings of some embodiments of this utility model.

[0018] Figure 1 This is an exploded structural diagram of a preferred embodiment of the multi-channel anti-adhesion rotary valve with origin calibration of this utility model.

[0019] Figure 2 This is a schematic diagram of the rotary drive mechanism and the isolation cover in this utility model.

[0020] Figure 3 This is a schematic diagram of the valve cover in this utility model. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] The directional terms mentioned in this utility model, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom", are only for reference to the orientation of the accompanying drawings. The directional terms used are for the purpose of explaining and understanding this utility model, and are not intended to limit this utility model.

[0023] The terms "first" and "second" in this utility model are used for descriptive purposes only and should not be construed as indicating or implying relative importance, nor as a restriction on the order of events.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, a connection can be a detachable connection or a connection of an integral structure; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Many existing rotary valves extend the rotating shaft to the outside of the valve body and have a conveying channel inside the rotating shaft. The extension of the rotating shaft requires a sealing structure between it and the valve body, making disassembly and assembly more troublesome, laborious, and costly.

[0026] The following is a preferred embodiment of a multi-channel anti-sticking rotary valve with origin calibration provided by this utility model, which can solve the above technical problems.

[0027] Please refer to Figure 1 ,in Figure 1 This is an exploded structural diagram of a preferred embodiment of the multi-channel anti-adhesion rotary valve with origin calibration of this utility model.

[0028] In the diagram, units with similar structures are represented by the same labels.

[0029] This embodiment provides a multi-channel anti-adhesion rotary cutting valve with origin calibration, which includes: valve body 11, valve cover 12, rotary drive mechanism 13, rotary shaft 14, rotary cutting blade 15, and elastic element 16.

[0030] The valve cover 12 is connected to one end of the valve housing 11 and forms a closed structure with a delivery chamber. The valve cover 12 can be locked to one end of the valve cover 11 with screws.

[0031] The rotary drive mechanism 13 is connected to one end of the outer side of the valve housing 11. The rotary shaft 14 and the rotary blade 15 are rotatably disposed inside the valve housing 11. One end of the rotary shaft 14 is connected to the output end of the rotary drive mechanism 13, and the other end of the rotary shaft 14 is connected to the rotary blade 15.

[0032] The valve cover 12 is provided with multiple first conveying holes 121 that connect to the conveying chamber. The valve housing 11 is provided with a second conveying hole that connects to the conveying chamber on one side. The rotary blade 15 covers multiple first conveying holes 121. The rotary blade 15 is provided with a clearance port 151. The rotary blade 15 is driven to rotate by the rotary drive mechanism 13, so that the clearance port 151 switches to connect with different first conveying holes 121, thereby allowing the second conveying hole to switch to connect with different first conveying holes 121.

[0033] It is understandable that the first conveying port 121 can be either an input or an output, thus enabling one-in-multiple-out or multiple-in-one-out systems.

[0034] In this embodiment, the elastic element 16 is a spring. The elastic element 16 is sleeved on the outer periphery of the rotating shaft 14. The outer periphery of the rotating shaft 14 is provided with a limiting protrusion 143. The elastic element 16 is located between the side of the rotary slice 15 away from the first conveying hole 121 and the limiting protrusion 143. The elastic element 17 can squeeze the rotary slice 15 to keep it closed and prevent it from docking with the first conveying hole 121 that is not connected with the avoidance opening 151.

[0035] In this embodiment, the rotary valve has a second conveying hole on one side of the valve housing 11, and the rotating shaft 14 does not have a conveying hole and does not extend through the valve cover 12, thereby reducing the sealing structure required for the rotating shaft 14 to extend, reducing costs, and making disassembly and assembly more convenient.

[0036] Please refer to Figure 1 In this embodiment, the multi-channel anti-sticking rotary cutting valve with origin calibration also includes a wear-resistant plate 17. The wear-resistant plate 17 is disposed between the rotary cutting plate 15 and the valve cover 12. The wear-resistant plate 17 is provided with first connecting holes 171 corresponding to a plurality of first conveying holes 121.

[0037] The rotary cutter 15 is made of high-strength, wear-resistant plastic material, while the wear-resistant sheet 17 is made of ceramic material, thus preventing the rotary cutter 15 and the wear-resistant sheet 17 from sticking together. The wear-resistant sheet 17 is preferably made of high-hardness, high-wear-resistant ceramic material, which can effectively ensure the seal at the rotary cut point. The rotary cutter 15 and the wear-resistant sheet 17 have a long rotational switching life and will not rust.

[0038] In addition, the multi-channel anti-adhesion rotary valve with origin calibration also includes a sealing gasket 18. The sealing gasket 18 is disposed between the wear-resistant plate 17 and the valve cover 12, and extends between the valve body 11 and the valve cover 12. The sealing gasket 18 is provided with second connecting holes 181 corresponding one-to-one with the multiple first connecting holes 171. The sealing gasket 18 can seal both the wear-resistant plate 17 and the valve cover 12, as well as the valve body 11 and the valve cover 12, resulting in a simpler structure, convenient disassembly and assembly, and lower cost.

[0039] Please refer to Figure 1 and Figure 3 In this embodiment, the valve cover 12 is provided with a plurality of first delivery pipes 122 that are connected one-to-one with the first delivery holes 121, and the valve housing 11 is provided with a second delivery pipe 111 that is connected with the second delivery hole. Some of the first delivery pipes 122 are axial delivery pipes 1221 extending parallel to the rotation axis 14, and some are radial delivery pipes 1222 extending perpendicular to the rotation axis 14. Each radial delivery pipe 1222 is disposed between two axial delivery pipes 1221. The axial delivery pipes 1221 and radial delivery pipes 1222 do not interfere with each other's connection to the external pipes, and the distance between the axial delivery pipes 1221 and radial delivery pipes 1222 can be set smaller, allowing more first delivery pipes 122 to be disposed within a smaller space.

[0040] Furthermore, the radial delivery pipe 1222 is partially embedded within the valve cover 12, making the structure more compact.

[0041] In this embodiment, the clearance opening 151 penetrates the circumferential side of the rotary slice 15, and the area of ​​the clearance opening 151 is larger than the area of ​​the first connecting hole 171.

[0042] Please refer to Figure 2 In this embodiment, the rotary blade 15 is interference-fitted onto the outer periphery of one end of the rotating shaft 14, and a connecting groove 141 for connecting the rotary blade 15 is provided on the outer periphery of one end of the rotating shaft 14. It can be understood that the axial width of the connecting groove 141 is greater than the axial thickness of the rotary blade 15, so that the rotary blade 15 can slide along the rotating shaft 14, so that the elastic member 17 can press the rotary blade 15 into stable contact with the wear-resistant plate 17.

[0043] A shrinkage groove 142 is provided radially through one end of the rotating shaft 14, and the shrinkage groove 142 also passes through the end face of the rotating shaft 14 away from the rotating drive mechanism 13. The shrinkage groove 142 allows the rotary slice 15 to be easily assembled and disassembled from the rotating shaft 14, and the rotary slice 15 and the rotating shaft 14 are connected with a certain elastic interference force.

[0044] In this utility model, the multi-channel anti-sticking rotary valve with origin calibration also includes an isolation cover 19, a lever 1B, and a micro switch 1C; An isolation cover 19 is disposed between the valve housing 11 and the rotary drive mechanism 13, forming an installation cavity between the isolation cover 19 and the valve housing 11. A rotary shaft 14 passes through the installation cavity, and a lever 1B is located inside the installation cavity. The lever 1B is fixedly connected to the rotary shaft 14. A micro switch 1C is fixedly disposed inside the installation cavity and is located on the rotation trajectory of the lever 1B.

[0045] Before the rotary slice 15 rotates to switch the clearance port 151 to another first connecting hole 171 for docking, the rotating shaft 14 rotates, driving the lever 1B to rotate. The lever 1B presses and triggers the micro switch 1C, at which point the corresponding signal from the rotary drive mechanism 13 to return to the origin is received, thus achieving origin calibration. After calibration, the rotary drive mechanism 13 can accurately drive the rotary slice 15 to the required position, eliminating errors during multiple rotary cutting rotations, ensuring precise docking of the clearance port 151 and the first connecting hole 171, and stable fluid delivery.

[0046] In this embodiment, a boss 112 is provided on the valve housing 11, and a rotating shaft 14 passes through the boss 112. A sealing ring 1A is sleeved on the outer periphery of the rotating shaft 14. The sealing ring 1A is located between the rotating shaft 14 and the inner wall of the boss 112 to ensure the sealing of the conveying cavity.

[0047] In this preferred embodiment, the multi-channel anti-adhesion rotary cutting valve with origin calibration operates by rotating the rotary cutting slice 15, driven by the rotary drive mechanism 13. This causes the clearance port 151 to switch to connect with different first conveying holes 121, thereby allowing the second conveying hole to switch to connect with different first conveying holes 121. Depending on the requirements, one-in-multiple-out or multiple-in-one-out can be achieved.

[0048] The multi-channel anti-adhesion rotary valve with origin calibration in this embodiment has a first conveying hole on the valve cover and a second conveying hole on one side of the valve body. At the same time, a sealing gasket can be set to seal both the wear-resistant plate and the valve cover, as well as the valve body and the valve cover. This reduces the sealing structure required for the extended rotating shaft, lowers the cost, and makes disassembly and assembly more convenient.

[0049] In addition, the outer portion of the first delivery pipe of the valve cover is set as an axial delivery pipe, and the portion of the first delivery pipe is set as a radial delivery pipe, making the structure more compact.

[0050] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. A multi-channel anti-sticking rotary valve with origin calibration, characterized in that, include: Valve housing, valve cover, rotary drive mechanism, rotary shaft, rotary blade, and elastic element; The valve cover is connected to one end of the valve housing and forms a closed structure with a conveying cavity. The rotary drive mechanism is connected to one end of the outer side of the valve housing. The rotary shaft and the rotary blade are rotatably disposed inside the valve housing. One end of the rotary shaft is connected to the output end of the rotary drive mechanism, and the other end of the rotary shaft is connected to the rotary blade. The valve cover is provided with a plurality of first conveying holes communicating with the conveying chamber, and one side of the valve housing is provided with a second conveying hole communicating with the conveying chamber. The rotary blade covers a plurality of the first conveying holes, and the rotary blade is provided with a clearance opening. The rotary blade rotates to allow the clearance opening to switch to connect with different first conveying holes. The elastic element is sleeved on the outer periphery of the rotating shaft, and the outer periphery of the rotating shaft is provided with a limiting protrusion. The elastic element is located between the side of the rotary slice away from the first conveying hole and the limiting protrusion.

2. The multi-channel anti-adhesion rotary valve with origin calibration according to claim 1, characterized in that, The multi-channel anti-sticking rotary cutting valve with origin calibration also includes a wear-resistant plate, which is disposed between the rotary cutting plate and the valve cover. The wear-resistant plate is provided with first connecting holes that correspond one-to-one with the plurality of first conveying holes.

3. The multi-channel anti-adhesion rotary valve with origin calibration according to claim 2, characterized in that, The rotary blade is made of high-strength wear-resistant plastic material, and the wear-resistant sheet is made of ceramic material.

4. The multi-channel anti-adhesion rotary valve with origin calibration according to claim 2, characterized in that, The multi-channel anti-adhesion rotary valve with origin calibration also includes a sealing gasket, which is disposed between the wear-resistant plate and the valve cover. The sealing gasket extends between the valve body and the valve cover, and the sealing gasket is provided with second connecting holes that correspond one-to-one with the plurality of first connecting holes.

5. The multi-channel anti-adhesion rotary valve with origin calibration according to claim 1, characterized in that, The valve cover is provided with a plurality of first conveying pipes that are connected one by one to the first conveying holes. Some of the first conveying pipes are axial conveying pipes with an extension direction parallel to the rotation axis, and some of the first conveying pipes are radial conveying pipes with an extension direction perpendicular to the rotation axis. Each of the radial conveying pipes is disposed between two of the axial conveying pipes.

6. The multi-channel anti-adhesion rotary valve with origin calibration according to claim 5, characterized in that, The radial delivery pipe portion is embedded within the valve cover.

7. The multi-channel anti-adhesion rotary valve with origin calibration according to claim 2, characterized in that, The clearance opening penetrates the circumferential side of the rotary slice, and the area of ​​the clearance opening is larger than the area of ​​the first connecting hole.

8. The multi-channel anti-adhesion rotary valve with origin calibration according to claim 1, characterized in that, The rotary slice is interference-fitted onto the outer periphery of one end of the rotating shaft. A connecting groove for connecting the rotary slice is provided on the outer periphery of one end of the rotating shaft, and a shrinkage groove is provided radially through one end of the rotating shaft. The shrinkage groove also penetrates the end face of the rotating shaft away from the rotating drive mechanism.

9. The multi-channel anti-adhesion rotary valve with origin calibration according to claim 1, characterized in that, The multi-channel anti-adhesion rotary valve with origin calibration also includes an isolation cover, a lever, and a micro switch; The isolation cover is disposed between the valve body and the rotary drive mechanism, forming a mounting cavity between the isolation cover and the valve body. The rotary shaft passes through the mounting cavity, the lever is located inside the mounting cavity, and the lever is fixedly connected to the rotary shaft. The micro switch is fixedly disposed inside the mounting cavity and is located on the rotation trajectory of the lever.

10. The multi-channel anti-adhesion rotary valve with origin calibration according to claim 1, characterized in that, The valve housing is provided with a boss portion, the rotating shaft passes through the boss portion, and a sealing ring is sleeved on the outer periphery of the rotating shaft. The sealing ring is located between the rotating shaft and the inner wall of the boss portion.

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