Steam valve
Technical Field
The invention relates to a local component of a steamer furnace, in particular to a steam valve.
Background
At present, a steamer furnace for steaming steamed bread, steamed stuffed bun and the like in the market basically has the principle that water is added into the steamer furnace, then food steamer boxes are stacked, and then the water in the steamer furnace is heated by a heating device, so that the food placed in the steamer is heated by steam generated by heating the water. The device has the common defects that steam and fuel gas are used to cause unnecessary waste when food is not contained in the steamer or the steamer is taken away, and the switch is manually controlled to increase the time of manual operation. Thus, a vapor valve that opens and closes automatically is used. At present, a steam valve with an automatic opening and closing function only has a steam inlet and a steam outlet, so that the steam valve can only be used at the end of a steam transmission path, if a plurality of steam chambers all need steam, a plurality of steam transmission paths need to be arranged to respectively supply steam to the plurality of steam chambers, and the number of the steam transmission paths is large, so that the structure is complex.
Disclosure of Invention
The invention discloses a steam valve, which is used for solving the problem that the existing steam valve can only be used at the terminal of a steam transmission path, and when a plurality of steam chambers are required to be provided with steam, the structure is complex due to the fact that the number of the transmission paths is large.
In order to achieve the above purpose, the invention adopts the following technical scheme:
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 transmission port.
Further, the steam delivery device comprises a connecting pipe with two open ends, the two open ends of the connecting pipe are a steam inlet and a steam delivery port respectively, and the steam outlet is arranged on the side wall of the connecting pipe.
Further, the steam outlet plugging device comprises a rotary pipe which is sleeved in the connecting pipe and is in threaded connection with the connecting pipe, the plugging block is used as a part of the rotary pipe, a limiting through groove is formed in the side wall of the connecting pipe along the circumferential direction so as to expose the rotary pipe, an operation strip is arranged to penetrate through the limiting through groove and then is inserted into the rotary pipe, and the operation strip moves along the limiting through groove outside the connecting pipe so as to drive the rotary pipe to rotate, so that the plugging block is opened and plugged the steam outlet.
Further, the operation strip is a screw, a screw hole is formed in the rotary pipe, and the screw is in threaded connection with the screw hole, so that the screw is fixed on the rotary pipe.
Further, a reset mechanism is also included, which applies a reset force to the block to restore the block to a position where the vapor outlet is blocked.
Further, the reset mechanism is an elastic piece, and when the steam valve is opened, the elastic piece applies elastic force to the operation strip so as to enable the plugging block to return to the position when the steam outlet is plugged.
Further, the elastic piece is a deformable elastic piece, the deformable elastic piece is fixed on the outer wall of the connecting pipe through the fixing piece, and the deformable elastic piece blocks the operation strip to enable the operation strip to be located at the starting point end of the limiting through groove, so that the plugging block plugs the steam outlet in a natural state.
Further, a sealing element is arranged at the external connection position of the steam inlet and/or the external connection position of the steam transmission port.
Further, the external connection of the two parts of the vapor inlet and the vapor transmission port is of a male-female structure, so that the vapor transmission port of one vapor valve can be abutted with the vapor inlet of the other same vapor valve.
Compared with the prior art, the invention has the beneficial effects that the steam entering the steam valve from the steam inlet can flow out of the steam outlet and can be transferred from the steam transfer port through the steam transfer port, and further, when the steam is required to be supplied to a plurality of steam chambers, the steam valve can be arranged on the same steam transmission path to respectively supply the steam to the plurality of steam chambers, so that the number of the steam transmission paths is reduced, and the structure can be simplified.
Drawings
FIG. 1 is a schematic illustration of a vapor valve with screws removed;
FIG. 2 is an exploded view of the vapor valve;
fig. 3 is a front view of the vapor valve.
Detailed Description
The invention is further described below with reference to specific embodiments and figures.
As shown in fig. 1, the vapor valve 10 comprises a connecting pipe 1 and a rotating pipe 2 sleeved in the connecting pipe 1, wherein the upper end and the lower end of the connecting pipe 1 are both opened, the lower end of the connecting pipe 1 is a vapor inlet 17, the upper end of the connecting pipe 1 is a vapor transmission port 16, the bottom of the side wall of the connecting pipe 1 is provided with a vapor outlet 11, and vapor entering the connecting pipe 1 from the vapor inlet 17 can flow out from the vapor outlet 11 or flow to a vapor pipeline or another vapor valve from the vapor transmission port. As shown in fig. 2, the inner wall of the adapter tube 1 is provided with an internal thread 12, the rotating tube 2 is in a circular tube shape, the outer wall of the rotating tube 2 is provided with an external thread 13 matched with the internal thread 12, the rotating tube 2 is connected with the adapter tube 1 through the external thread 13 and the internal thread 12, so that the joint of the rotating tube 2 and the adapter tube 1 has higher tightness, steam cannot leak from the joint of the rotating tube 2 and the adapter tube 1, and meanwhile, the rotating tube 2 can rotate in the adapter tube 1. The blocking block 21 is used as a part of the rotary pipe 2, the blocking block 21 rotates along with the rotary pipe 2, the area of the blocking block 21 is slightly larger than the area of the vapor outlet 11, the blocking block 21 rotates to the position of the vapor outlet 11 in the process of rotating along with the rotary pipe 2, the vapor outlet 11 can be blocked, and then the blocking block 21 gradually moves away from the vapor outlet 11 along with the rotation of the rotary pipe 2, so that the vapor outlet 11 is opened, and the vapor flows out from the vapor outlet 11.
As shown in fig. 1 and 2, a limiting through groove 14 penetrating through the side wall of the connecting pipe 1 is formed in the connecting pipe 1 at a position contacted with the rotating pipe 2, the limiting through groove 14 is formed in the rotating pipe 2 along the circumferential direction of the connecting pipe 1, a screw hole 22 is formed in a position opposite to the limiting through groove 14, a screw 3 serving as an operation strip penetrates through the limiting through groove 14 and is in threaded connection with the screw hole 22, the tail end of the screw 3 is fixed on 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 external force acts on the head end of the screw 3, the screw 3 moves along the limiting through groove 14, and the rotating pipe 2 and a blocking block 21 connected with the rotating pipe 2 are driven to rotate. When the screw 3 is located at the starting end 141 of the limiting through groove 14, the blocking block 21 just blocks the vapor outlet 11 (see fig. 3), the screw 3 moves from the starting end 141 of the limiting through groove 14 to the finishing end 142 of the limiting through groove 14, the blocking block 21 gradually opens the vapor outlet 11, and when the screw 3 moves to the finishing end 142 of the limiting through groove 14, the blocking block 21 just moves completely from the vapor outlet 11, so that the vapor outlet 11 is completely opened. As described above, the operation bar screw 3 is used as a moving mechanism for closing or opening the steam outlet 11 by the closing member 21.
As shown in fig. 3, a fixing member 4 is further fixed to the outer wall of the adapter tube 1 above the limit through slot 14, a deformable elastic sheet 5 serving as an elastic member is disposed on a side surface of the fixing member 4 near the start end 141 of the limit through slot 14, and when the screw 3 in the vapor valve 10 is not acted by external force, the deformable elastic sheet 5 blocks the screw 3 to enable the screw 3 to be located at the start end 141 of the limit through slot 14, so that the blocking block 21 blocks the vapor outlet 11 in a natural state. The screw 3 receives the external force action towards the terminal end 142 of the limit through groove 14, the screw 3 moves from the starting end 141 of the limit through groove 14 to the terminal end 142 of the limit through groove 14, the screw 3 pushes the deformable elastic sheet 5 to deform the deformable elastic sheet 5, the deformable elastic sheet 5 generates force towards the starting end 141 of the limit through groove 14 on the screw 3, once the external force is not applied any more, the screw 3 moves towards the starting end 141 of the limit through groove 14 under the elastic force action of the deformable elastic sheet 5, and the screw 3 returns to the position for blocking the vapor outlet 11. As described above, the deformable elastic piece 5 is used as a restoring mechanism of the block 21, and the deformable elastic piece 5 can apply a restoring force to the block 21 to restore the block 21 to a position where the vapor outlet 11 is blocked.
As shown in fig. 2, the upper end (at the vapor transmission port 16, see fig. 3) of the adapter tube 1 is provided with a connecting groove 6, the connecting groove 6 is of a female connecting structure, a sealing ring 7 serving as a sealing member is arranged in the connecting groove 6, the lower end (at the vapor inlet 17, see fig. 3) of the adapter tube 1 is provided with a connecting protrusion 8 (see fig. 3) butted with the connecting groove 6, the connecting protrusion 8 is of a male connecting structure, and the connecting protrusion 8 can be inserted into the connecting groove 6 at the top of another identical vapor valve 10, so that vapor flowing out from the vapor transmission port 16 of the other vapor valve 10 can enter the vapor valve 10 from the vapor inlet 17 of the vapor valve 10.
The above description is merely of a preferred embodiment of the present invention, the present invention is not limited to the above embodiment, and minor structural modifications may exist in the implementation process, and if various modifications or variations of the present invention do not depart from the spirit and scope of the present invention and fall within the scope of the appended claims and the equivalent technology, the present invention is also intended to include such modifications and variations.