A steam valve

Abstract

The present invention relates to a local component of a steamer furnace, and in particular to a steam valve. The steam valve is provided with a steam inlet, a steam outlet, and a blocking block for opening and blocking the steam outlet, and is characterized in that a steam transfer port is also provided. The present invention solves the problem that the existing steam valve can only be used at the terminal of a steam transmission path, and when steam needs to be provided to multiple steam chambers, the structure is complicated due to the large number of transmission paths.

Description

Technical Field

[0001] The invention relates to a local component of a steamer furnace, in particular to a steam valve. Background Art

[0002] At present, the steamer furnace used for steaming steamed buns and dumplings on the market basically follows the principle of adding water into the steamer furnace, stacking the steamer with food, and then heating the water in the steamer furnace through the heating device, so as to heat the food placed in the steamer with the water vapor generated by the water heating. This device generally has the following disadvantages: first, when the steamer is empty or taken away, the steam and gas are still in use, causing unnecessary waste; second, the switches are all manually controlled, which increases the time of manual operation. Therefore, the steam valve with automatic opening and closing function has been applied. At present, the steam valve with automatic opening and closing function only has a steam inlet and a steam outlet, so that it can only be used at the terminal of the steam transmission path. If multiple steam chambers need steam, multiple steam transmission paths need to be set up to supply steam to multiple steam chambers respectively. The number of steam transmission paths is large, resulting in a complex structure. Summary of the invention

[0003] The invention discloses a steam valve for solving the problem that the existing steam valve can only be used at the terminal of a steam transmission path and has a complex structure due to a large number of transmission paths when steam needs to be provided to multiple steam chambers.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] A steam valve is provided with a steam inlet, a steam outlet, a blocking block for opening and blocking the steam outlet, and a steam transfer port.

[0006] Furthermore, it comprises a connecting pipe with two open ends, wherein the two open ends of the connecting pipe are respectively a steam inlet and a steam transfer port, and the steam outlet is arranged on the side wall of the connecting pipe.

[0007] Furthermore, it includes a rotating tube that is sleeved in the connecting pipe and threadedly connected to the connecting pipe, the blocking block is a part of the rotating tube, and a limiting groove is opened in the circumferential direction on the side wall of the connecting pipe to expose the rotating tube. An operating strip is provided to pass through the limiting groove and then be inserted into the rotating tube. The operating strip moves along the limiting groove outside the connecting pipe to drive the rotating tube to rotate, so that the blocking block opens and blocks the steam outlet.

[0008] Furthermore, the operating strip is a screw, a screw hole is formed on the rotating tube, and the screw is threadedly connected to the screw hole, thereby fixing the screw on the rotating tube.

[0009] Furthermore, it also includes a reset mechanism, which applies a reset force to the blocking block to make the blocking block return to a position that blocks the steam outlet.

[0010] Furthermore, the reset mechanism is an elastic member, and when the steam valve is opened, the elastic member applies elastic force to the operating strip to restore the blocking block to the position when blocking the steam outlet.

[0011] Furthermore, the elastic member is a deformable spring sheet, which is fixed to the outer wall of the connecting pipe by a fixing member. The deformable spring sheet blocks the operating bar so that the operating bar is located at the starting end of the limiting groove, so that the blocking block blocks the steam outlet in a natural state.

[0012] Furthermore, a sealing member is provided at the external connection of the steam inlet and / or the external connection of the steam transfer port.

[0013] Furthermore, the external connections between the steam inlet and the steam transfer port are of a male and a female structure, so that the steam transfer port of one steam valve can be connected to the steam inlet of another same steam valve.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting a steam transfer port, the steam entering the steam valve from the steam inlet can not only flow out from the steam outlet, but also transfer the steam from the steam transfer port. Furthermore, when steam needs to be provided to multiple steam chambers, multiple steam valves can be set on the same steam transmission path to supply steam to multiple steam chambers respectively, thereby reducing the number of steam transmission paths and simplifying the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of removing the screws from the steam valve;

[0016] Figure 2 This is an exploded view of a steam valve;

[0017] Figure 3 This is a front view of the steam valve. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with specific embodiments and drawings.

[0019] like Figure 1 The steam valve 10 includes a pipe 1 and a rotating tube 2 sleeved in the pipe 1. The pipe 1 has openings at both ends. The lower end of the pipe 1 is a steam inlet 17, and the upper end of the pipe 1 is a steam transfer port 16. The bottom of the side wall of the pipe 1 is provided with a steam outlet 11. The steam entering the pipe 1 from the steam inlet 17 can flow out from the steam outlet 11, or flow from the steam transfer port to the steam pipeline or another steam valve. Figure 2The inner wall of the pipe 1 is provided with an internal thread 12, the rotating pipe 2 is in the shape of a circular tube, and the outer wall of the rotating pipe 2 is provided with an external thread 13 matched with the internal thread 12. The rotating pipe 2 is connected to the pipe 1 through the external thread 13 and the internal thread 12, so that the connection between the rotating pipe 2 and the pipe 1 has a high degree of sealing, so that the steam cannot leak from the connection between the rotating pipe 2 and the pipe 1, and the rotating pipe 2 can rotate in the pipe 1. The blocking block 21 is a part of the rotating pipe 2. The blocking block 21 rotates with the rotating pipe 2. The area of ​​the blocking block 21 is slightly larger than the area of ​​the steam outlet 11. The blocking block 21 rotates to the position of the steam outlet 11 during the rotation of the rotating pipe 2 to block the steam outlet 11. Then, as the rotating pipe 2 rotates, the blocking block 21 gradually moves away from the steam outlet 11, thereby opening the steam outlet 11 to allow the steam to flow out from the steam outlet 11.

[0020] like Figure 1 and Figure 2 The part of the connecting pipe 1 that contacts the rotating pipe 2 is provided with a limiting groove 14 that penetrates the side wall of the connecting pipe 1. The limiting groove 14 is arranged along the circumference of the connecting pipe 1. The part of the rotating pipe 2 that is opposite to the limiting groove 14 is provided with a screw hole 22. The screw 3 that serves as an operating strip passes through the limiting groove 14 and is threadedly connected to the screw hole 22. The tail end of the screw 3 is fixed to the rotating pipe 2, and the head end of the screw 3 is exposed on the outer wall of the connecting pipe 1, so that when an external force acts on the head end of the screw 3, the screw 3 moves along the limiting groove 14, thereby driving the rotating pipe 2 and the blocking block 21 connected to the rotating pipe 2 to rotate. When the screw 3 is located at the starting end 141 of the limiting groove 14, the blocking block 21 just blocks the steam outlet 11 (see Figure 3 ), the screw 3 moves from the starting end 141 of the limiting slot 14 to the terminal end 142 of the limiting slot 14, and the blocking block 21 gradually opens the steam outlet 11. When the screw 3 moves to the terminal end 142 of the limiting slot 14, the blocking block 21 just completely moves away from the steam outlet 11, so that the steam outlet 11 is completely opened. As can be seen from the above, the operating bar screw 3 is used as a moving mechanism for the blocking block 21 to block or open the steam outlet 11.

[0021] like Figure 3A fixing part 4 is also fixed to the outer wall of the connecting pipe 1 at a position above the limiting groove 14, and a deformable spring piece 5 as an elastic part is arranged on the side surface of the fixing part 4 close to the starting end 141 of the limiting groove 14. When the screw 3 in the steam valve 10 is not subjected to external force, the deformable spring piece 5 blocks the screw 3 so that the screw 3 is located at the starting end 141 of the limiting groove 14, so that the blocking block 21 blocks the steam outlet 11 in a natural state. When the screw 3 is subjected to an external force toward the terminal end 142 of the limiting slot 14, the screw 3 moves from the starting end 141 of the limiting slot 14 to the terminal end 142 of the limiting slot 14, and the screw 3 pushes the deformable spring sheet 5 to deform the deformable spring sheet 5, and the deformable spring sheet 5 exerts a force toward the starting end 141 of the limiting slot 14 on the screw 3. Once the external force is no longer applied, the screw 3 moves toward the starting end 141 of the limiting slot 14 under the elastic force of the deformable spring sheet 5, so that the screw 3 returns to the position of blocking the steam outlet 11. As can be seen from the above, the deformable spring sheet 5 is used as a reset mechanism of the blocking block 21, and the deformable spring sheet 5 can apply a reset force to the blocking block 21 to make the blocking block 21 return to the position of blocking the steam outlet 11.

[0022] like Figure 2 , the upper end of the pipe 1 (the steam transfer port 16, see Figure 3 ) is provided with a connection groove 6, the connection groove 6 is a female connection structure, and a sealing ring 7 as a sealing member is provided in the connection groove 6. The lower end of the pipe 1 (the steam inlet 17, see Figure 3 ) is provided with a connecting protrusion 8 that docks with the connecting groove 6 (see Figure 3 ), the connecting protrusion 8 is a male connecting structure, and the connecting protrusion 8 can be inserted into the connecting groove 6 at the top of another identical steam valve 10, so that the steam flowing out from the steam transfer port 16 of the other steam valve 10 can enter the steam valve 10 from the steam inlet 17 of the steam valve 10.

[0023] The above is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment. There may be local minor structural changes during the implementation process. If the various changes or modifications of the present invention do not depart from the spirit and scope of the present invention and fall within the scope of the claims and equivalent technologies of the present invention, the present invention is also intended to include these changes and modifications.

Claims

1. A steam valve, provided with a steam inlet, a steam outlet, and a blocking block for opening and blocking the steam outlet, characterized in that: A steam transfer port is also provided; the pipe comprises a pipe with two open ends, wherein the two open ends of the pipe are respectively a steam inlet and a steam transfer port, and the steam outlet is provided on the side wall of the pipe; It includes a rotating tube which is sleeved in a connecting pipe and is threadedly connected to the connecting pipe. The blocking block is a part of the rotating tube. A limiting groove is circumferentially opened on the side wall of the connecting pipe to expose the rotating tube. An operating strip is inserted into the rotating tube after passing through the limiting groove. The operating strip moves along the limiting groove outside the connecting pipe to drive the rotating tube to rotate, so that the blocking block opens and blocks the steam outlet.

2. The steam valve according to claim 1, characterized in that: The operating strip is a screw, a screw hole is provided on the rotating tube, and the screw is threadedly connected with the screw hole, so that the screw is fixed on the rotating tube.

3. The steam valve according to claim 1 or 2, characterized in that: It also includes a reset mechanism, which applies a reset force to the blocking block to make the blocking block return to a position where it blocks the steam outlet.

4. The steam valve according to claim 3, characterized in that: The reset mechanism is an elastic member. When the steam valve is opened, the elastic member applies elastic force to the operating strip to make the blocking block return to the position when blocking the steam outlet.

5. The steam valve according to claim 4, characterized in that: The elastic member is a deformable spring sheet, which is fixed to the outer wall of the pipe through a fixing member. The deformable spring sheet blocks the operating bar so that the operating bar is located at the starting end of the limiting groove, so that the blocking block blocks the steam outlet in a natural state.

6. The steam valve according to claim 1, characterized in that: A sealing member is provided at the external connection of the steam inlet and / or the external connection of the steam transfer port.

7. The steam valve according to any one of claims 1, 2 and 6, characterized in that: The external connection parts of the steam inlet and the steam transfer port are a male and a female structure, so that the steam transfer port of one steam valve can be connected to the steam inlet of another same steam valve.

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