A sanitary three-way valve

Abstract

This utility model discloses a sanitary three-way valve, comprising a valve body, a valve cover connected to the valve body, a drive component, and a valve core. The valve cover has an outlet end, and the valve core is connected to the drive component and disposed inside the valve body. Specifically, the valve cover consists of a first valve cover, a second valve cover, and a middle valve cover arranged symmetrically, perpendicular to the first valve cover. A reset assembly is disposed between the valve body and the first valve cover. The reset assembly includes a support seat, a spring, and a positioning part. The valve body has a mounting through hole, the support seat is disposed in the mounting through hole, the spring is disposed in the telescopic groove and forms a telescopic cooperation with the positioning part, the first valve cover has a positioning groove, and the positioning part is tightly disposed in the positioning groove. A fastener is disposed on the side of the first valve cover facing the valve core to form a sealing cooperation with the valve body. The purpose of this utility model is to provide a sanitary three-way valve with the advantages of compact structure, improved installation efficiency, and avoidment of structural instability inside the valve body.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a sanitary three-way valve. Background Technology

[0002] Sanitary three-way valves are control components used in fluid transport systems, with functions such as shut-off, reversal, and changing the direction of medium flow. However, in existing sanitary three-way valves, the valve body and valve cover are often connected by bolts. During later operation, the bolt connection is prone to instability, leading to medium leakage inside the valve body, which poses a significant safety hazard. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes a sanitary three-way valve, which has the advantages of compact structure and improved installation efficiency, while avoiding structural instability within the valve body.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a sanitary three-way valve, comprising a T-shaped valve body, a valve cover connected to the valve body assembly, a drive component, and a valve core. The valve cover assembly has an outlet end. The valve core is connected to the drive component and disposed inside the valve body. The valve core has a first flow channel and a second flow channel arranged in an L-shaped orthogonal configuration inside. The valve cover assembly specifically comprises a symmetrically arranged first valve cover, a second valve cover, and a central valve cover arranged perpendicular to the first valve cover. The first valve cover, the second valve cover, and the central valve cover each have a straight... The valve body is provided with a first through-hole, a second through-hole, and a middle through-hole. A reset assembly is provided between the valve body and the first valve cover. The reset assembly includes a support, a spring, and a positioning part. The valve body has a mounting through-hole. The support is disposed in the mounting through-hole. One end of the spring is sleeved on the positioning seat, and the other end is pressed and disposed in the mounting through-hole, forming a telescopic fit with the positioning part. The first valve cover has a positioning groove. The positioning part is pressed and disposed in the positioning groove. The first valve cover has a fastener on the side facing the valve core that forms a sealing fit with the valve body.

[0005] By adopting the above technical solution, during installation, the first valve cover is pushed up by the positioning part and rises. The spring is compressed upwards, forming a clearance space for the first valve cover to slide into the valve core. When the positioning groove moves to the positioning part, the spring releases the compression pressure, causing the positioning part to be inserted downwards into the positioning groove. At the same time, the fasteners receive pressure to form a seal against the first valve cover inside the valve body. This has the advantages of compact structure and improved installation efficiency, and avoids the phenomenon of structural instability inside the valve body.

[0006] The present invention is further configured such that the first valve cover is provided with a thread on the side facing the valve body, and the first valve cover is screwed into the valve body by the thread.

[0007] By adopting the above technical solution, the first valve cover is connected to the inside of the valve body by a thread, which can achieve the axial limiting effect of the first valve cover and improve the stability of the structure.

[0008] The present invention is further configured such that a tapered surface is provided on the first valve cover near the thread side, and an insertion interface for installing fasteners is provided on the tapered surface. The fasteners have abutting flanges extending from both ends. The fasteners are pressed into the insertion interface by the abutting flanges and form a sealed abutment with the valve body. The fasteners have a plurality of sealing parts protruding towards the valve body side, and a gap is provided between adjacent sealing parts.

[0009] By adopting the above technical solution, when the first valve cover thread is tightened inside the first valve cover, the fastener is squeezed and the abutting flange is pressed against the inclined surface. The compression of the sealing part forms a bidirectional positioning of the fastener, thereby further improving the sealing connection effect between the first valve cover and the valve body.

[0010] The present invention is further configured such that the two ends of the positioning part are connected to the extension protrusions, the valve body is provided with a telescopic groove for the extension protrusions to slide, the extension protrusions are slidably disposed in the telescopic grooves and pressed against the first valve cover, and the positioning part is provided with a clearance slope on the side facing the positioning groove.

[0011] Through the above technical solution, the extended protrusion can be pressed and set on the valve body, and cooperate with the spring to realize the extension and retraction of the positioning part. The yielding slope can play a guiding and positioning role when the first valve cover is installed, so as to avoid structural interference.

[0012] The present invention is further configured such that the support base is specifically T-shaped and disposed in the mounting through hole, and the two ends of the support base extend outward and are provided with positioning feet. The mounting through hole has a clearance opening adapted to the positioning feet on the side facing the positioning feet. The positioning feet are pressed and disposed in the clearance opening. The support base is provided with a bolt on the end facing the clearance opening. The support base is tightened onto the valve body by the bolt.

[0013] By adopting the above technical solution, the support seat is inserted into the installation through hole during installation. When the positioning leg is pressed into the clearance opening, the support seat is tightened onto the valve body by tightening the bolts, which plays the role of supporting and positioning the positioning part and prevents the structure from loosening.

[0014] The present invention is further configured such that a support column is connected to the side of the support base facing the spring, and the spring is sleeved on the outer circumferential surface of the support column.

[0015] By adopting the above technical solution, the support column can support the spring and improve the stability of the spring during extension and retraction.

[0016] The present invention is further configured such that a sealing ring is provided on the valve body facing the outlet end, and a sealing groove for installing the sealing ring is provided on the valve body, and the sealing ring is tightly disposed in the sealing groove.

[0017] By using the above technical solution, the sealing ring can enhance the sealing performance between the first valve cover and the valve body, and avoid structural instability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partially enlarged view of component A of this utility model;

[0020] Figure 3 This is a partially enlarged view of utility model B.

[0021] In the diagram: 1. Valve body; 2. Valve cover assembly; 3. Drive component; 4. Valve core; 5. Outlet end; 8. First flow channel; 9. Second flow channel; 10. First valve cover; 11. Second valve cover; 12. Middle head valve cover; 13. First through diameter; 14. Second through diameter; 15. Middle head through diameter; 16. Reset assembly; 17. Support seat; 18. Spring; 19. Positioning part; 20. Mounting through hole; 21. Positioning groove; 23. Fastener; 24. Thread; 25. Tapered surface; 26. Insertion interface; 27. Abutment flange; 28. Sealing part; 29. ​​Extension protrusion; 30. Telescopic groove; 31. Relief slope; 32. Positioning support foot; 33. Relief opening; 34. Bolt; 35. Support column; 36. Sealing ring; 37. Sealing groove. 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. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: As attached Figures 1-3A sanitary three-way valve is shown, comprising a T-shaped valve body 1, a valve cover assembly 2 connected to the valve body 1, a drive element 3, and a valve core 4. The valve cover assembly 2 has an outlet end 5. The valve core 4 is connected to the drive element 3 and disposed inside the valve body 1. The valve core 4 has an L-shaped orthogonal first flow channel 8 and a second flow channel 9. The valve cover assembly 2 specifically comprises a symmetrically arranged first valve cover 10, a second valve cover 11, and a central valve cover 12 perpendicular to the first valve cover 10. The first valve cover 10, the second valve cover 11, and the central valve cover 12 (which have identical structures) each have a first through-hole 13 (specifically, inclined and gradually enlarging towards the outlet end 5), a second through-hole 14, and a central through-hole 15, respectively. A reset assembly 16 (specifically two identical structures, one above the other) is disposed between the valve body 1 and the first valve cover 10. The reset assembly includes a support base 17 and a spring 1. The valve body 1 has an installation through hole 20, and the support seat 17 is disposed in the installation through hole 20. One end of the spring 18 is sleeved on the positioning seat, and the other end is pressed and disposed in the installation through hole 20, forming a telescopic cooperation with the positioning part 19. The first valve cover 10 has a positioning groove 21, and the positioning part 19 is pressed and disposed in the positioning groove 21. The first valve cover 10 is provided with a fastener 23 on the side facing the valve core 4, which forms a sealing cooperation with the valve body 1. During installation, the first valve cover 10 presses the positioning part 19 and rises upward. The spring 18 is compressed upward under pressure, forming a clearance space for the first valve cover 10 to slide into the valve core 4. When the positioning groove 21 moves to the positioning part 19, the spring 18 releases the contraction pressure, causing the positioning part 19 to be inserted downward into the positioning groove 21. At the same time, the fastener 23 is compressed to form a tight installation of the first valve cover 10 inside the valve body 1. It has the advantages of compact structure and improved installation efficiency, and avoids the phenomenon of structural instability inside the valve body 1.

[0024] As attached Figure 1 As shown, the first valve cover 10 is provided with a thread 24 (which is an integral structure) on the side facing the valve body 1. The first valve cover 10 is tightened into the valve body 1 by the thread 24. The first valve cover 10 and the inside of the valve body 1 are connected by the thread 24, which can achieve the axial limiting effect of the first valve cover 10 and improve the stability of the structure.

[0025] As attached Figure 1 and attached Figure 3As shown, a tapered surface 25 (a one-piece structure) is provided on the first valve cover 10 near the thread 24. The tapered surface 25 has an insertion interface 26 for installing fasteners 23. The fasteners 23 have abutment flanges 27 (a one-piece structure) extending from both ends. The fasteners 23 are pressed into the insertion interface 26 by the abutment flanges 27 and form a sealed abutment with the valve body 1. The fasteners 23 have several sealing parts 28 (a one-piece structure, specifically three to four) protruding towards the valve body 1. There is a gap between adjacent sealing parts 28. When the thread 24 of the first valve cover 10 is tightened into the first valve cover 10, the fasteners 23 are squeezed, and the abutment flanges 27 are pressed against the inclined surface. The compression of the sealing parts 28 forms a bidirectional positioning of the fasteners 23, thereby further improving the sealing connection effect between the first valve cover 10 and the valve body 1.

[0026] As attached Figure 1 and attached Figure 2 As shown, the positioning part 19 is provided with extension protrusions 29 (integrated structure) at both ends. The valve body 1 is provided with a telescopic groove 30 for the extension protrusions 29 to slide. The extension protrusions 29 are slidably disposed in the telescopic groove 30 and pressed against the first valve cover 10. The positioning part 19 is provided with a relief slope 31 on the side facing the positioning groove 21. The extension protrusions 29 can be pressed against the valve body 1. The spring 18 is used to realize the cooperation and telescopic operation of the positioning part 19. The relief slope 31 can play a guiding and positioning role when the first valve cover 10 is installed to avoid structural interference.

[0027] As attached Figure 2 As shown, the support base 17 is specifically T-shaped and is set in the mounting through hole 20. The two ends of the support base 17 extend outward and are provided with positioning feet 32 ​​(integrated structure). The mounting through hole 20 has a clearance opening 33 on the side facing the positioning feet 32, which is adapted to the positioning feet 32. The positioning feet 32 ​​are pressed into the clearance opening 33. The support base 17 is provided with a bolt 34 on the end facing the clearance opening 33. The support base 17 is tightened onto the valve body 1 by the bolt 34. During installation, the support base 17 is inserted into the mounting through hole 20. When the positioning feet 32 ​​are pressed into the clearance opening 33, the support base 17 is tightened onto the valve body 1 by tightening the bolt 34, which plays a supporting and positioning role for the positioning part 19 and prevents the structure from loosening.

[0028] As attached Figure 2 As shown, a support column 35 (an integral structure) is connected to the support base 17 facing the spring 18. The spring 18 is sleeved on the outer circumferential surface of the support column 35. The support column 35 can support the spring 18 and improve the stability of the spring 18 during extension and retraction.

[0029] As attached Figure 1 As shown, a sealing ring 36 is provided on the valve body 1 facing the outlet end 5. A sealing groove 37 is provided on the valve body 1 for installing the sealing ring 36. The sealing ring 36 is tightly disposed in the sealing groove 37. The sealing ring 36 can enhance the sealing performance between the first valve cover 10 and the valve body 1 and avoid structural instability.

[0030] In this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.

Claims

1. A sanitary three-way valve, comprising a T-shaped valve body (1), a valve cover assembly (2) connected to the valve body (1), a drive element (3), and a valve core (4), wherein the valve cover assembly (2) has an outlet end (5), the valve core (4) is connected to the drive element (3) and disposed inside the valve body (1), and the valve core (4) has a first flow channel (8) and a second flow channel (9) arranged in an L-shaped orthogonal configuration, characterized in that: The valve cover assembly (2) specifically comprises a first valve cover (10) and a second valve cover (11) symmetrically arranged, and a middle valve cover (12) arranged perpendicular to the first valve cover (10). The first valve cover (10), the second valve cover (11), and the middle valve cover (12) are respectively provided with a first through-hole (13), a second through-hole (14), and a middle through-hole (15) arranged in a straight-through state. A reset assembly (16) is provided between the valve body (1) and the first valve cover (10). The reset assembly includes a support base (17), a spring (18), and a positioning element. The valve body (1) has an installation through hole (20), the support seat (17) is disposed in the installation through hole (20), one end of the spring (18) is sleeved on the positioning seat, and the other end is pressed and disposed in the installation through hole (20) and forms a telescopic fit with the positioning part (19). The first valve cover (10) has a positioning groove (21), and the positioning part (19) is pressed and disposed in the positioning groove (21). The first valve cover (10) has a fastener (23) on the side facing the valve core (4) that forms a sealing fit with the valve body (1).

2. The sanitary three-way valve according to claim 1, characterized in that: The first valve cover (10) is provided with a thread (24) on the side facing the valve body (1), and the first valve cover (10) is tightened into the valve body (1) by the thread (24).

3. A sanitary three-way valve according to claim 2, characterized in that: The first valve cover (10) has a tapered surface (25) on the side near the thread (24). The tapered surface (25) has an insertion interface (26) for installing fasteners (23). The fasteners (23) have abutting flanges (27) extending from both ends. The fasteners (23) are pressed into the insertion interface (26) by the abutting flanges (27) and form a sealed abutment with the valve body (1). The fasteners (23) have a plurality of sealing parts (28) protruding on the side facing the valve body (1). There is a gap between adjacent sealing parts (28).

4. A sanitary three-way valve according to claim 1, characterized in that: The positioning part (19) is provided with extension protrusions (29) at both ends. The valve body (1) is provided with a telescopic groove (30) for the extension protrusions (29) to slide. The extension protrusions (29) are slidably disposed in the telescopic groove (30) and pressed against the first valve cover (10). The positioning part (19) is provided with a relief slope (31) on the side facing the first valve cover (10). The relief slope (31) is pressed against the positioning groove (21).

5. A sanitary three-way valve according to claim 1, characterized in that: The support base (17) is specifically T-shaped and set in the mounting through hole (20). The support base (17) has positioning feet (32) extending outward at both ends. The mounting through hole (20) has a clearance opening (33) adapted to the positioning feet (32) on the side facing the positioning feet (32). The positioning feet (32) are pressed into the clearance opening (33). The support base (17) has a bolt (34) at the end facing the clearance opening (33). The support base (17) is tightened onto the valve body (1) by the bolt (34).

6. A sanitary three-way valve according to claim 5, characterized in that: The support base (17) is connected to a support column (35) on the side facing the spring (18), and the spring (18) is sleeved on the outer circumferential surface of the support column (35).

7. A sanitary three-way valve according to claim 1, characterized in that: A sealing ring (36) is provided on the valve body (1) facing the outlet end (5). A sealing groove (37) for installing the sealing ring (36) is provided on the valve body (1). The sealing ring (36) is tightly disposed in the sealing groove (37).

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