CN220435502U

CN220435502U - Three-way reversing valve

Info

Publication number: CN220435502U
Application number: CN202321756410.XU
Authority: CN
Inventors: 冯君辉; 李昌浩; 林纪
Original assignee: Zhejiang Haoji Fluid Technology Co ltd
Current assignee: Zhejiang Haoji Fluid Technology Co ltd
Priority date: 2023-07-06
Filing date: 2023-07-06
Publication date: 2024-02-02
Anticipated expiration: 2033-07-06

Abstract

The utility model provides a three-way reversing valve, and belongs to the technical field of valve manufacturing. The three-way reversing valve solves the problems that a three-way ball core is not easy to assemble and disassemble in the existing three-way reversing valve. The three-way reversing valve comprises a valve body, a valve rod and a three-way ball core, wherein the valve body is of an integrated structure and is provided with a first water inlet, a second water inlet and a water outlet, a valve cover is in threaded connection with the top of the valve body, the top of the valve body is provided with a mounting hole for the three-way ball core to be filled in, the top of the three-way ball core is provided with a through hole penetrating through an inner cavity of the three-way ball core, the inner end of the valve rod penetrates through the valve cover and is fixedly spliced in the through hole in the circumferential direction, the valve body is embedded with a first annular sealing ring at the inner end of the first water inlet, an elastic piece is arranged between the valve body and the first sealing ring, the valve body is embedded with a second annular sealing ring at the inner end of the second water inlet, and the second elastic piece is arranged between the valve body and the second sealing ring. The utility model has the advantages of compact structure, less leakage points, easy assembly and disassembly of the tee ball core, and the like.

Description

Three-way reversing valve

Technical Field

The utility model belongs to the technical field of valve manufacturing, and relates to a reversing valve, in particular to a three-way reversing valve.

Background

The three-way reversing valve is used for changing the flow direction of the medium and has a reversing function. For example, chinese patent literature discloses a bottom inlet fixed three-way reversing valve [ application number: 202211639715.2; application publication number: CN115750845a ], it includes valve body, valve rod and valve ball, be equipped with the valve pocket in the valve body and with the import of valve pocket intercommunication, first export and second export, the valve pocket top is equipped with the valve gap of dismantling the connection with the valve body, the rotatable setting of valve ball is in the valve pocket of valve body, the one end of valve rod passes the valve gap and stretches into the valve pocket of valve body and with valve ball fixed connection, the import sets up in the bottom of valve body, first export and second export set up respectively in the both sides of valve body, be equipped with the circulation passageway that comprises import passageway and two export passageway intercommunication on the valve ball, import passageway vertical setting and with import intercommunication, two export passageways are in the vertical intercommunication of horizontal direction, rotate the valve ball and can make two export passageways rotate respectively to be linked together with first export or second export.

The bottom-inlet fixed three-way reversing valve has the advantages that the medium inlet and the two outlets are arranged in different distribution directions, the operation is convenient, when the valve core is required to be disassembled, the valve cover, the first outlet flange and the second outlet flange are required to be disassembled, the valve core is inconvenient to disassemble, and the valve cover, the first outlet flange and the second outlet flange are connected through screws, so that the structure is not compact enough, the leakage points are large, and the service life is not ideal.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides the three-way reversing valve which is compact in structure, few in leakage points and easy to assemble and disassemble.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides a three-way reversing valve, includes valve body, valve rod and three-way ball core, three-way ball core be located the valve body, the outer end of valve rod fixedly connected with the handle, its characterized in that, valve body as an organic whole structure and valve body have water inlet one, water inlet two and delivery port, water inlet one and water inlet two coaxial arrangement, the delivery port be located between water inlet one and water inlet two and contained angle between delivery port and water inlet one, the water inlet two be 90, the top threaded connection of valve body has the mounting hole that supplies three-way ball core to pack into with the top of valve body, three-way ball core's top has the through-hole that link up to its inner chamber, the inner of valve rod passes the valve cover and fixedly grafting in circumference in the through-hole, valve rod and valve body between be equipped with the stop gear that restriction valve rod rotates in order to make water inlet one and delivery port be linked together or water inlet two are linked together with the delivery port, the valve body inlay in water inlet one be equipped with annular sealing ring first, valve body and sealing ring first be equipped with the elastic component between the sealing ring, elastic component provides elasticity and makes sealing ring one mounting hole's inner wall and sealing ball core in the three-way ball core, the protrusion is equipped with two elastic component and two sealing ring two inner wall of valve body and two sealing ring.

In the three-way reversing valve, the limiting mechanism comprises a first blocking shoulder and a second blocking shoulder which are radially inwards protruding and are arranged on the inner wall of the mounting hole, the valve rod is fixedly connected with a blocking piece, when the blocking piece abuts against the first blocking shoulder, the first water inlet is communicated with the water outlet, and when the blocking piece abuts against the second blocking shoulder, the second water inlet is communicated with the water outlet.

In the three-way reversing valve, the baffle plate is fixedly sleeved on the valve rod in the circumferential direction, the valve rod is provided with a convex shoulder which radially protrudes outwards and is used for propping against the top of the baffle plate, the valve rod is also sleeved with a sealing gasket, the top surface of the sealing gasket is propped against the bottom surface of the baffle plate, and the bottom surface of the sealing gasket is propped against a plane arranged on the top of the three-way ball core.

In the three-way reversing valve, the first elastic piece is a first sealing ring embedded at the inner end of the first water inlet, and the second elastic piece is a second sealing ring embedded at the inner end of the second water inlet.

In another aspect, in the three-way reversing valve, the first elastic member is a first disc spring embedded at an inner end of the water inlet, and the second elastic member is a second disc spring embedded at an inner end of the water inlet. The first disc spring and the second disc spring play roles in elastic support and deformation abdication, so that the tee ball core is convenient to assemble and disassemble.

In the three-way reversing valve, the valve rod is embedded with at least two sealing rings III sealed on the valve cover, the outer wall of the valve rod extending into the valve cover is provided with a radially outwards protruding ring, and the valve rod is embedded with a clamp spring abutting against the top of the valve cover.

In the three-way reversing valve, the valve cover is in threaded connection with the cylindrical mounting cylinder, and the decorative cover is sleeved outside the mounting cylinder.

In the three-way reversing valve, the PPR shell is coated on the outer surface of the valve body, and the PPR shell is provided with the communication holes corresponding to the first water inlet, the second water inlet and the water outlet one by one.

In the three-way reversing valve, the sealing ring IV sealed on the inner wall of the PPR shell is embedded at the outer wall of the first water inlet, the sealing ring V sealed on the inner wall of the PPR shell is embedded at the outer wall of the second water inlet, the sealing ring VI sealed on the inner wall of the PPR shell is embedded at the outer wall of the water outlet, the sealing ring seven sealed on the inner wall of the PPR shell is embedded at the outer wall of the mounting hole, the annular groove with the dovetail-shaped cross section is arranged at the outer wall of the mounting hole, and the PPR shell is provided with an embedded part embedded in the annular groove.

Compared with the prior art, the three-way reversing valve has the advantages of compact structure, few leakage points, good sealing performance, good working stability, convenient assembly and disassembly of the three-way ball core, convenient maintenance, low use cost and long service life.

Drawings

Fig. 1 is a perspective view of the three-way reversing valve.

Fig. 2 is a structural sectional view of the three-way reversing valve.

Fig. 3 is a rear view of the structure of the three-way reversing valve.

Fig. 4 is a cross-sectional view of the structure of section A-A in fig. 3.

Fig. 5 is a structural cross-sectional view of section B-B in fig. 3.

In the figure, 1, a valve body; 2. a valve stem; 3. a three-way ball core; 4. a handle; 5. a first water inlet; 6. a second water inlet; 7. a water outlet; 8. a valve cover; 9. a mounting hole; 10. a through hole; 11. a first sealing ring; 12. a second sealing ring; 13. a first stop shoulder; 14. a second shoulder; 15. a baffle; 16. shoulder; 17. a sealing gasket; 18. a first sealing ring; 19. a second sealing ring; 20. a third sealing ring; 21. a convex ring; 22. clamping springs; 23. a mounting cylinder; 24. a decorative cover; 25. a PPR shell; 26. a sealing ring IV; 27. a fifth sealing ring; 28. a sealing ring six; 29. a sealing ring seven; 30. an embedding part.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1, 2, 3, 4 and 5, the three-way reversing valve comprises a valve body 1, a valve rod 2 and a three-way ball core 3, wherein the three-way ball core 3 is positioned in the valve body 1, a handle 4 is fixedly connected to the outer end of the valve rod 2, the valve body 1 is of an integrated structure, the valve body 1 is provided with a first water inlet 5, a second water inlet 6 and a water outlet 7, the first water inlet 5 and the second water inlet 6 are coaxially arranged, the water outlet 7 is positioned between the first water inlet 5 and the second water inlet 6, the included angle between the water outlet 7 and the first water inlet 5 and the second water inlet 6 is 90 degrees, a valve cover 8 is in threaded connection with the top of the valve body 1, a mounting hole 9 for the three-way ball core 3 to be installed is arranged at the top of the valve body 1, a through hole 10 penetrating through the inner cavity of the three-way ball core 3 is arranged at the top of the three-way ball core, the through hole 10 is a square hole in the embodiment, the inner end of the valve rod 2 penetrates through the valve cover 8 and is fixedly spliced in the through hole 10 in the circumferential direction, a limiting mechanism which limits the valve rod 2 to rotate so that the first water inlet 5 and the second water outlet 7 are communicated or the second water inlet 6 and the second water outlet 7 are communicated is arranged between the valve rod 2 and the valve body 1, an annular sealing ring 11 is embedded in the inner end of the first water inlet 5, an elastic piece I is arranged between the valve body 1 and the sealing ring 11, the elastic piece I provides elastic force so that the sealing ring I11 protrudes out of the inner wall of the mounting hole 9 and is sealed in the tee ball core 3, an annular sealing ring II 12 is embedded in the inner end of the second water inlet 6 of the valve body 1, an elastic piece II is arranged between the valve body 1 and the sealing ring II 12, and the elastic piece II provides elastic force so that the sealing ring II protrudes out of the inner wall of the mounting hole 9 and is sealed in the tee ball core 3.

The valve body 1 in the three-way reversing valve is of an integrated structure, few in leakage points and compact in structure, the first elastic part provides elastic force to enable the first sealing ring 11 to be always sealed on the three-way ball core 3, the second elastic part provides elastic force to enable the second sealing ring 12 to be always sealed on the three-way ball core 3, and therefore tightness of the position of the three-way ball core 3 is guaranteed, and leakage is avoided; when the three-way ball valve is used, the handle 4 drives the valve rod 2 and the three-way ball core 3 to rotate, when the limiting mechanism limits the valve rod 2 to rotate, the first water inlet 5 is communicated with the second water outlet 7, the second water inlet 6 is blocked by the three-way ball core 3, the valve rod 2 is reversely rotated, and when the limiting mechanism limits the valve rod 2 to rotate again, the second water inlet 6 is communicated with the second water outlet 7, the first water inlet 5 is blocked by the three-way ball core 3, so that the flow direction of a medium is switched; when the tee ball core 3 needs to be disassembled, firstly the valve cover 8 is unscrewed from the valve body 1, then the valve rod 2 is taken down, the hook penetrates through the through hole 10 and hooks the tee ball core 3, the tee ball core 3 is pulled towards the outer side of the mounting hole 9, the tee ball core 3 extrudes the sealing ring I11 and the sealing ring II 12, thereby overcoming the elasticity of the elastic piece I and the elastic piece II, the tee ball core 3 is disassembled from the mounting hole 9, the tee ball core 3 is convenient to disassemble, and the elastic piece I and the elastic piece II deform to provide a yielding space, so that the new tee ball core 3 is conveniently assembled between the sealing ring I11 and the sealing ring II 12 from the mounting hole 9, then the valve rod 2 is assembled on the tee ball core 3, and then the valve cover 8 is assembled conveniently, so that the tee ball core 3 of the tee reversing valve is convenient to assemble, low in use cost and long in service life.

In further detail, in this embodiment, the limiting mechanism includes a first shoulder 13 and a second shoulder 14 protruding radially inward on an inner wall of the mounting hole 9, a blocking piece 15 is fixedly connected to the valve rod 2, when the blocking piece 15 abuts against the first shoulder 13, the first water inlet 5 is communicated with the second water outlet 7, and when the blocking piece 15 abuts against the second shoulder 14, the second water inlet 6 is communicated with the second water outlet 7. The structure is simple and compact, and the operation is convenient.

The baffle 15 is fixedly sleeved on the valve rod 2 in the circumferential direction, the section of the valve rod 2 where the baffle 15 is sleeved is square, the valve rod 2 is provided with a convex shoulder 16 which protrudes outwards in the radial direction and is propped against the top of the baffle 15, the valve rod 2 is also sleeved with a sealing gasket 17, the top surface of the sealing gasket 17 is propped against the bottom surface of the baffle 15, and the bottom surface of the sealing gasket 17 is propped against a plane arranged on the top of the tee ball core 3. Therefore, the baffle 15 and the valve rod 2 are fixed, and the sealing gasket 17 not only ensures that the baffle 15 is stably positioned, but also plays a role in sealing and prevents water seepage at the top of the tee ball core 3.

In this embodiment, the elastic member I is a first sealing ring 18 embedded at the inner end of the first water inlet 5, the elastic member II is a second sealing ring 19 embedded at the inner end of the second water inlet 6, the first sealing ring 18 and the second sealing ring 19 play a role in elastic support, and the first sealing ring 18 and the second sealing ring 19 deform to provide a yielding space, so that the three-way ball core 3 is convenient to assemble and disassemble. The valve rod 2 inlays and is equipped with two at least sealing washer III 20 sealed in valve gap 8, and the outer wall that valve rod 2 stretched into valve gap 8 has radial convex bulge loop 21, and valve rod 2 inlays and is equipped with the jump ring 22 of contradicting in valve gap 8 top, and sealing washer III 20 has guaranteed the leakproofness between valve rod 2 and the valve gap 8, and the quantity of sealing washer III 20 is three in this embodiment, and bulge loop 21 plays the barrier effect, avoids valve rod 2 to break away from valve gap 8, and jump ring 22 plays axial limiting displacement, avoids valve rod 2 atress to tee bend ball core 3 side displacement, has guaranteed job stabilization nature.

The valve cover 8 is in threaded connection with a cylindrical mounting cylinder 23, the mounting cylinder 23 is sleeved with a decorative cover 24, so that the three-way reversing valve can be embedded into a wall for mounting, the mounting cylinder 23 is partially embedded into the wall, and the decorative cover 24 shields the orifice of the embedded hole, so that the mounting is attractive, and the design requirement of concealed installation is met.

The outer surface of the valve body 1 is coated with a PPR shell 25, and the PPR shell 25 is provided with communication holes corresponding to the first water inlet 5, the second water inlet 6 and the water outlet 7 one by one. In actual manufacturing, the valve body 1 is made of copper, machining precision can be guaranteed, and the PPR shell 25 is convenient to connect. The valve body 1 is embedded with a sealing ring IV 26 sealed on the inner wall of the PPR shell 25 at the outer wall of the first water inlet 5, the valve body 1 is embedded with a sealing ring V27 sealed on the inner wall of the PPR shell 25 at the outer wall of the second water inlet 6, the valve body 1 is embedded with a sealing ring VI 28 sealed on the inner wall of the PPR shell 25 at the outer wall of the water outlet 7, the valve body 1 is embedded with a sealing ring V29 sealed on the inner wall of the PPR shell 25 at the outer wall of the mounting hole 9, the valve body 1 is provided with an annular groove with a dovetail-shaped cross section at the outer wall of the mounting hole 9, the PPR shell 25 is provided with an embedded part 30 embedded in the annular groove, so that the PPR shell 25 and the valve body 1 are firmly combined, the sealing property between the valve body 1 and the PPR shell 25 is good, and leakage is avoided.

What is not described in detail in this specification is prior art known to those skilled in the art. The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims

1. The three-way reversing valve comprises a valve body (1), a valve rod (2) and a three-way ball core (3), wherein the three-way ball core (3) is positioned in the valve body (1), the outer end of the valve rod (2) is fixedly connected with a handle (4), the three-way reversing valve is characterized in that the valve body (1) is of an integrated structure, the valve body (1) is provided with a first water inlet (5), a second water inlet (6) and a water outlet (7), the first water inlet (5) and the second water inlet (6) are coaxially arranged, the water outlet (7) is positioned between the first water inlet (5) and the second water inlet (6), the included angle between the first water outlet (7) and the first water inlet (5) and the second water inlet (6) is 90 degrees, the top of the valve body (1) is in threaded connection with a mounting hole (9) for the three-way ball core (3) to be mounted at the top of the valve body (1), the top of the three-way ball core (3) is provided with a through hole (10) penetrating through the inner cavity of the valve cover (8), the inner end of the valve rod (2) is fixedly spliced in the through hole (10) in the circumferential direction, the valve rod (2) and valve body (1) between be equipped with restriction valve rod (2) and rotate in order to make water inlet one (5) and delivery port (7) be linked together or water inlet two (6) and delivery port (7) the stop gear who is linked together, valve body (1) inlay in water inlet one (5) the inner be equipped with be annular sealing ring one (11), be equipped with elastic component one between valve body (1) and sealing ring one (11), elastic component one provides elasticity and makes the inner wall of sealing ring one (11) protrusion mounting hole (9) and seal in tee bend ball core (3), valve body (1) inlay in water inlet two (6) the inner be equipped with be annular sealing ring two (12), be equipped with elastic component two between valve body (1) and sealing ring two (12), elastic component two provide elasticity and make sealing ring two (12) protrusion mounting hole (9) the inner wall and seal in tee bend ball core (3).

2. The three-way reversing valve according to claim 1, wherein the limiting mechanism comprises a first blocking shoulder (13) and a second blocking shoulder (14) which are radially inwards protruding and are arranged on the inner wall of the mounting hole (9), the valve rod (2) is fixedly connected with a blocking piece (15), when the blocking piece (15) abuts against the first blocking shoulder (13), the first water inlet (5) is communicated with the water outlet (7), and when the blocking piece (15) abuts against the second blocking shoulder (14), the second water inlet (6) is communicated with the water outlet (7).

3. The three-way reversing valve according to claim 2, wherein the baffle plate (15) is fixedly sleeved on the valve rod (2) in the circumferential direction, the valve rod (2) is provided with a convex shoulder (16) which radially protrudes outwards and is used for propping the top of the baffle plate (15), the valve rod (2) is further sleeved with a sealing gasket (17), the top surface of the sealing gasket (17) is propped against the bottom surface of the baffle plate (15), and the bottom surface of the sealing gasket (17) is propped against a plane arranged at the top of the three-way ball core (3).

4. The three-way reversing valve according to claim 1, wherein the first elastic member is a first sealing ring (18) embedded at the inner end of the first water inlet (5), and the second elastic member is a second sealing ring (19) embedded at the inner end of the second water inlet (6).

5. The three-way reversing valve according to claim 1, wherein the first elastic member is a first disc spring embedded at the inner end of the first water inlet (5), and the second elastic member is a second disc spring embedded at the inner end of the second water inlet (6).

6. A three-way reversing valve according to any one of claims 1 to 5, characterized in that the valve rod (2) is embedded with at least two sealing rings (20) sealed on the valve cover (8), the outer wall of the valve rod (2) extending into the valve cover (8) is provided with a radially outwards protruding ring (21), and the valve rod (2) is embedded with a clamp spring (22) abutting against the top of the valve cover (8).

7. The three-way reversing valve according to claim 6, wherein the valve cover (8) is in threaded connection with a cylindrical mounting cylinder (23), and the mounting cylinder (23) is externally sleeved with a decorative cover (24).

8. The three-way reversing valve according to claim 7, wherein the outer surface of the valve body (1) is coated with a PPR shell (25), and the PPR shell (25) is provided with communication holes corresponding to the first water inlet (5), the second water inlet (6) and the water outlet (7) one by one.

9. The three-way reversing valve according to claim 8, wherein the valve body (1) is embedded with a sealing ring IV (26) sealed on the inner wall of the PPR shell (25) at the outer wall of the first water inlet (5), the valve body (1) is embedded with a sealing ring V (27) sealed on the inner wall of the PPR shell (25) at the outer wall of the second water inlet (6), the valve body (1) is embedded with a sealing ring VI (28) sealed on the inner wall of the PPR shell (25) at the outer wall of the water outlet (7), the valve body (1) is embedded with a sealing ring V (29) sealed on the inner wall of the PPR shell (25) at the outer wall of the mounting hole (9), the valve body (1) is provided with an annular groove with a dovetail-shaped cross section, and the PPR shell (25) is provided with an embedded part (30) of the annular groove.