A two-way steam valve

Abstract

This utility model relates to a two-way steam valve, comprising a valve body, a first through hole at the center of the valve body, a valve core disposed within the first through hole, a second through hole at the center of the valve core, a rubber ball disposed within the second through hole, a first retaining ring at the front end of the second through hole, a second spring disposed between the first retaining ring and the rubber ball, an annular inner protrusion corresponding to the shape of the rubber ball disposed on the inner wall of the rear end of the second through hole, a second retaining ring at the bottom of the valve body, a first spring disposed between the valve core and the second retaining ring, and a first air guide pipe disposed behind the second retaining ring. This utility model has the advantage of being able to switch between steam inlet and steam outlet modes.

Description

Technical Field

[0001] This utility model relates to the field of heat preservation and heating devices, and in particular to a two-way steam valve. Background Technology

[0002] Existing heat preservation and heating devices such as pressure cookers, steamers, or thermos flasks with steam inlet valves and steam vent valves all use one-way valves. The steam inlet valve can only be used to introduce steam, and the steam vent valve can only be used to release steam. They cannot be switched between steam inlet and steam vent, making them unsuitable for situations where switching between steam inlet and steam vent is required. Utility Model Content

[0003] To address the aforementioned technical problems in the background art, this utility model provides a two-way steam valve that has the advantage of being able to switch between steam inlet and steam outlet.

[0004] The technical solution of this utility model is as follows: This utility model is a two-way steam valve, which is special in that: the two-way steam valve includes a valve body, a first through hole is provided in the center of the valve body, a valve core is provided in the first through hole, a second through hole is provided in the center of the valve core, a rubber ball is provided in the second through hole, a first retaining ring is provided at the front end of the second through hole, a second spring is provided between the first retaining ring and the rubber ball, an annular inner convex edge corresponding to the shape of the rubber ball is provided on the inner wall of the rear end of the second through hole, a second retaining ring is provided at the bottom of the valve body, a first spring is provided between the valve core and the second retaining ring, and a first air guide tube is provided on the rear side of the second retaining ring.

[0005] Furthermore, a first outer protrusion is provided on the outer side of the front end of the valve core, a second retaining ring is located inside the first through hole, a second outer protrusion is provided on the outer side of the second retaining ring, and a first spring is provided between the first outer protrusion and the second outer protrusion.

[0006] Furthermore, an annular boss is provided on the inner side of the front end of the first through hole, the first retaining ring is embedded in the front end of the valve body, and a fourth sealing ring is provided between the annular boss and the first retaining ring.

[0007] Furthermore, a hollow fixing cap is provided at the bottom of the valve body, a second retaining ring is provided on the fixing cap, and a second sealing ring is provided between the second retaining ring and the fixing cap.

[0008] Furthermore, a pot body connecting sleeve is provided on the outside of the valve body.

[0009] Furthermore, a locking cap is provided on the outer rear part of the pot body connecting sleeve, and the first air guide tube passes through the locking cap and is connected to the locking cap.

[0010] Furthermore, an annular retaining plate is provided on the outer side of the front end of the first air guide tube, and the annular retaining plate is located between the fixing locking cap and the fixing cap.

[0011] Furthermore, a second air guide pipe is provided at the front end of the valve body, which communicates with the first through hole.

[0012] Furthermore, a first sealing ring is provided between the valve body and the pot body connecting sleeve.

[0013] Furthermore, a third sealing ring is provided between the pot body connecting sleeve and the pot body, and a fifth sealing ring is provided between the annular clamping plate and the fixing cap.

[0014] This utility model provides a two-way steam valve with a second through hole in the center of the valve core. A rubber ball is placed inside the second through hole. By sealing and opening the rubber ball, automatic switching between steam inlet and steam outlet is achieved, so that the functions of both a steam inlet valve and a steam outlet valve can be realized through a single two-way steam valve. Therefore, the two-way steam valve provided by this utility model can be used as both a steam inlet valve and a steam outlet valve. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0017] The annotations in the attached figures are explained as follows:

[0018] 1. First air guide pipe; 2. Valve body; 3. First retaining ring; 4. Valve core; 5. Rubber ball; 6. Second retaining ring; 7. First spring; 8. Second spring; 9. First sealing ring; 10. Second sealing ring; 11. Pot body connecting sleeve; 12. Fixing cap; 13. Second air guide pipe; 14. Third sealing ring; 15. Fourth sealing ring; 16. First through hole; 17. Second outer protrusion; 18. Annular boss; 19. First outer protrusion; 20. Second through hole; 21. Annular inner protrusion; 22. Fixing locking cap; 23. Annular retaining plate; 24. Fifth sealing ring. Detailed Implementation

[0019] The overall scheme of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0020] See Figure 1 , 2The structure of this utility model includes a valve body 2, a first through hole 16 at the center of the valve body 2, a valve core 4 inside the first through hole 16, a second through hole 20 at the center of the valve core 4, a rubber ball 5 inside the second through hole 20, a first retaining ring 3 at the front end of the second through hole 20, a second spring 8 between the first retaining ring 3 and the rubber ball 5, and an annular inner protrusion 21 corresponding to the shape of the rubber ball 5 on the inner wall of the rear end of the second through hole 20. The rubber ball 5 is pushed against the annular inner protrusion 21 by the elastic force of the second spring 8. A second retaining ring 6 is provided at the bottom of the valve body 2, and a first spring 7 is provided between the valve core 4 and the second retaining ring 6. The first spring 7 is installed as follows: a first outer protrusion 19 is provided on the outer side of the front end of the valve core 4, the second retaining ring 6 is located inside the first through hole 16, a second outer protrusion 17 is provided on the outer side of the second retaining ring 6, and the first spring 7 is arranged around the valve core 4 and the second retaining ring 6, located between the first outer protrusion 19 and the second outer protrusion 17. A first air guide pipe 1 is provided on the rear side of the second retaining ring 6, and the first air guide pipe 1 communicates with the through hole in the second retaining ring 6. An annular boss 18 is provided on the inner side of the front end of the first through hole 16, and the first retaining ring 3 is embedded in the front end of the valve body 2. A fourth sealing ring 15 is provided between the annular boss 18 and the first retaining ring 3. A hollow fixing cap 12 is provided at the bottom of the valve body 2, and the second retaining ring 6 is provided on the fixing cap 12. A second sealing ring 10 is provided between the second retaining ring 6 and the fixing cap 12. A pot body connecting sleeve 11 is provided on the outer side of the valve body 2, and the valve body 2 is mounted on the pot body through the pot body connecting sleeve 11. A third sealing ring 14 is provided between the pot body connecting sleeve 11 and the pot body, and a first sealing ring 9 is provided between the valve body 2 and the pot body connecting sleeve 11. A fixing locking cap 22 is provided on the outer rear part of the pot body connecting sleeve 11, and the first air guide pipe 1 passes through the fixing locking cap 22 and communicates with the through hole in the second retaining ring 6 through the fixing cap 12. An annular retaining plate 23 is provided on the outer side of the front end of the first air guide pipe 1, and the annular retaining plate 23 is located between the fixing locking cap 22 and the fixing cap 12. A fifth sealing ring 24 is provided between the annular retaining plate 23 and the fixing cap 12. A second air guide pipe 13 is provided at the front end of the valve body 2, which communicates with the first through hole 16, and the second air guide pipe 13 can extend into the bottom of the pot body.

[0021] When this utility model is used as a steam inlet valve, steam enters from the first steam guide pipe 1, passes through the through hole of the fixing cap 12 and the through hole of the second retaining ring 6 in sequence, and the steam pressure will push the rubber ball 5 up. After the steam is pushed up by the rubber ball 5, the gap between the rubber ball 5 and the second through hole 20, as well as the through hole of the first retaining ring 3 and the first through hole 16, enter the second steam guide pipe 13, and then the steam is guided into the bottom of the pot body to heat the steam box of the pot body. After the steam is introduced, the second spring 8 returns to its original position, pushing the rubber ball 5 against the annular inner convex edge 21.

[0022] When this invention is used as a steam outlet valve, steam is discharged from the second air guide pipe 13, and sequentially passes through the first through hole 16 and the through hole of the first retaining ring 3 into the second through hole 20. At this time, due to the presence of the rubber ball 5, the steam cannot be discharged. When the discharged steam reaches a certain pressure, it will squeeze the first retaining ring 3 and the valve core 4, causing the first spring 7 to be compressed. The first retaining ring 3 disengages from the fourth sealing ring 15, and the steam passes through the gap between the valve core 4 and the first through hole 16, sequentially through the first through hole 16, the through hole of the second retaining ring 6, the through hole of the fixing cap 12, and into the first air guide pipe 1, and is discharged from the first air guide pipe 1. After the steam discharge is completed, the elastic force of the first spring 7 returns, tightly sealing the first retaining ring 3 and the fourth sealing ring 15.

[0023] The content of this utility model and the technical content not specifically described in the above embodiments are the same as the prior art.

[0024] The above are merely specific embodiments disclosed in this utility model, but the scope of protection disclosed in this utility model is not limited thereto. The scope of protection disclosed in this utility model shall be determined by the scope of protection of the claims.

Claims

1. A two-way steam valve characterized by: The bidirectional steam valve includes a valve body, a first through hole at the center of the valve body, a valve core inside the first through hole, a second through hole at the center of the valve core, a rubber ball inside the second through hole, a first retaining ring at the front end of the second through hole, a second spring between the first retaining ring and the rubber ball, an annular inner convex edge corresponding to the shape of the rubber ball on the inner wall of the rear end of the second through hole, a second retaining ring at the bottom of the valve body, a first spring between the valve core and the second retaining ring, and a first air guide tube at the rear side of the second retaining ring.

2. The bi-directional steam valve of claim 1, wherein: The valve core has a first outer protrusion on its front end, the second retaining ring is located inside the first through hole, the second retaining ring has a second outer protrusion on its outer side, and the first spring is located between the first and second outer protrusions.

3. The bi-directional steam valve of claim 2, wherein: An annular boss is provided on the inner side of the front end of the first through hole, the first retaining ring is embedded in the front end of the valve body, and a fourth sealing ring is provided between the annular boss and the first retaining ring.

4. The bi-directional steam valve of claim 3, wherein: The valve body has a hollow fixing cap at the bottom, the second retaining ring is disposed on the fixing cap, and a second sealing ring is disposed between the second retaining ring and the fixing cap.

5. The bi-directional steam valve of claim 4, wherein: A pot body connecting sleeve is provided on the outside of the valve body.

6. The bi-directional steam valve of claim 5, wherein: A locking cap is provided on the outer rear part of the pot body connecting sleeve, and the first air guide tube passes through the locking cap and communicates with the locking cap.

7. The bi-directional steam valve of claim 6, wherein: An annular retaining plate is provided on the outer side of the front end of the first air guide tube, and the annular retaining plate is located between the fixing locking cap and the fixing cap.

8. The bi-directional steam valve according to any one of claims 1 to 7, characterized in that: The valve body is provided with a second air guide pipe that communicates with the first through hole at its front end.

9. The bi-directional steam valve of claim 8, wherein: A first sealing ring is provided between the valve body and the pot body connecting sleeve.

10. The bi-directional steam valve of claim 9, wherein: A third sealing ring is provided between the pot body connecting sleeve and the pot body, and a fifth sealing ring is provided between the annular clamping plate and the fixing cap.

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