A steamer

Abstract

The present invention relates to a steamer. The steamer comprises a steam generator, a steam supply channel and a plurality of food placement layers. The steam generated by the steam generator is supplied to the plurality of food placement layers through the steam supply channel. The steam supply channel is equipped with a steam valve for each food placement layer. The steam valve is provided with a steam inlet, a steam outlet facing the food placement layer, and a blocking block for opening and blocking the steam outlet. The steam valve is also provided with a steam transfer port. In the steam supply channel, the steam transfer port of the steam valve equipped with the food placement layer other than the last one leads to the steam inlet of the steam valve equipped with the next food placement layer. The steam supply structure in the steamer is simple.

Description

Technical Field

[0001] The invention relates to a steamer. 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 large number of steam transmission paths leads to a complex steamer structure. Summary of the invention

[0003] The invention discloses a steamer with a simple steam supply structure.

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

[0005] A steamer comprises a steam generator, a steam supply channel and a plurality of food placement layers. The steam generated by the steam generator is supplied to the plurality of food placement layers via the steam supply channel. The steam supply channel is provided with a steam valve for each food placement layer. The steam valve is provided with a steam inlet, a steam outlet aimed at the food placement layer, and a blocking block for opening and blocking the steam outlet. The steam valve is also provided with a steam transfer port. In the steam supply channel, the steam transfer port of the steam valve provided for a food placement layer other than the last one leads to the steam inlet of the steam valve provided for the next food placement layer.

[0006] Furthermore, at least one food placement layer has a movably removable food placement piece, and the food placement piece is provided with a matching piece that matches with the blocking block of the steam valve and matches as follows:

[0007] When the food placement piece is placed in the food placement layer, the matching piece enables the blocking block to open the steam outlet, and / or when the food placement piece is taken out of the food placement layer, the matching piece enables the blocking block to block the steam outlet.

[0008] Furthermore, the steam valve 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.

[0009] Furthermore, the steam valve includes a rotating tube that is sleeved in the connecting tube and threadedly connected to the connecting tube. The blocking block is a part of the rotating tube. A limiting groove is circumferentially opened on the side wall of the connecting tube 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 tube to drive the rotating tube to rotate, thereby opening and blocking the steam outlet with the blocking block.

[0010] Furthermore, the supply direction of the steam supply channel is from bottom to top, and in the steam valve, the steam inlet faces downward and the steam transfer port faces upward.

[0011] Furthermore, the food placement piece is a steaming plate, and the matching piece is a protrusion.

[0012] Furthermore, the food placement piece is a steaming plate, and a protrusion is provided on one side of the steaming plate. When the steaming plate is pushed into the food placement layer, the protrusion pushes the operating bar to move, thereby driving the rotating tube and the blocking block to rotate, so that the blocking block opens the steam outlet.

[0013] Furthermore, the steam valve also includes a reset mechanism, and when the steaming tray is taken out from the food placement layer, the reset mechanism applies a reset force to the blocking block so that the blocking block returns to a position that blocks the steam outlet.

[0014] Furthermore, the reset mechanism is an elastic member, which applies elastic force to the operating strip. When the food placement member is taken out from the food placement layer, the operating strip moves under the action of the elastic force, thereby driving the blocking block to return to the position when blocking the steam outlet.

[0015] 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.

[0016] Furthermore, the external connections between the steam inlet and the steam transfer port are a male and a female structure. In the steam supply channel, the steam transfer port of the steam valve equipped with a food placement layer other than the last one is connected to the steam inlet of the steam valve equipped with the next food placement layer.

[0017] Furthermore, a sealing member is provided to seal the steam transfer port of the steam valve provided for the last food placement layer.

[0018] Compared with the prior art, the invention has the following beneficial effects: the steam supply channel in the steamer of the invention is equipped with a steam valve for each food placement layer, each steam valve has not only a steam inlet and a steam outlet, but also a steam transfer port, so that in the steam supply channel, the steam transfer port of the steam valve equipped with the non-last food placement layer leads to the steam inlet of the steam valve equipped with the next food placement layer. Multiple food placement layers in the steamer can share the steam supply channel, simplifying the structure of steam supply in the steamer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of removing the screws from the steam valve;

[0020] Figure 2 This is an exploded view of a steam valve;

[0021] Figure 3 It is the front view of the steam valve;

[0022] Figure 4 is a schematic diagram of a steamer;

[0023] Figure 5 Schematic diagram of removing part of the steamer wall for the steamer;

[0024] Figure 6 It is a schematic diagram of the connection between the steam generating layer and three steam valves;

[0025] Figure 7 A structural diagram of a steaming tray containing food;

[0026] Figure 8 A schematic diagram of pushing the steaming plate toward the steam valve. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with specific embodiments and drawings.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] The steam valve 10 described above can be used in Figure 4 and Figure 5 In the steamer 9. Figure 5 The steamer 9 includes two steam generating layers 91. The steam generating layers 91 are provided with electric heating wires (not shown). Water is introduced into the steam generating layers 91 through a water inlet pipe 92, and then heated by the electric heating wires to generate steam. It can be seen that the steam generating layers 91 are used as steam generators. The lower steam generating layer 91 supplies steam to the two stacked food placement layers 93 arranged thereon through the two butt-jointed steam valves 10 described above, and the upper steam generating layer 91 supplies steam to the three stacked food placement layers 93 arranged thereon through the three butt-jointed steam valves 10 described above. Take the supply of steam from the upper steam generating layer 91 to the three stacked food placement layers 93 arranged thereon as an example: Figure 6A steam supply port (not shown) is provided on the top of the steam generating layer 91, and the bottom of the steam valve 10 in the food placing layer 93 in contact with the upper surface of the steam generating layer 91 is connected to the steam supply port. The steam valves 10 in the three food placing layers 93 are connected to form a steam supply channel, so that the steam flowing out of the steam supply port is transmitted to the three food placing layers 93 through the three steam valves 10. The top plate of the topmost food placing layer 93 among the three food placing layers 93 serves as a sealing member to seal the steam transfer port of the steam valve 10 in this layer so that the steam can no longer be transmitted upward. The steam outlet of the steam valve 10 in each food placing layer 93 is aligned with the food placing layer 93 of this layer, and a food inlet is provided on the inner side of each food placing layer 93. Food is placed in the food placing layer 93 as shown in the figure. Figure 7 The steaming plate 15 as a food placement member is then pushed into the food placement layer 93 from the food inlet. A convex block 151 as a matching member is provided on one side of the steaming plate 15. Figure 8 When the steaming plate 15 is pushed inward, the protrusion 151 on the steaming plate 15 contacts the screw 3 on the steam valve 10 and pushes the screw 3 from the starting end 141 of the limiting slot 14 to the terminal end 142 of the limiting slot 14. When the steaming plate 15 is pushed to the set position, the screw 3 is just pushed to the terminal end 142 of the limiting slot 14, so that the blocking block 21 opens the steam outlet 11, and the steam enters the food placing layer 93 from the steam outlet 11 to steam the food on the steaming plate 15. After the food in the steaming plate 15 is steamed, the steaming plate 15 is taken out from the food inlet. In the process of the steaming plate 15 being gradually taken out, the screw 3 is no longer subjected to the force of the protrusion 151 of the steaming plate 15. 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, and the blocking block 21 blocks the steam outlet of the steam valve 10. It can be seen that whether the steam valve 10 in the food placement layer 93 opens the steam outlet is determined by whether the steaming tray 15 containing food is placed. If the steaming tray 15 with food is taken out, the steam valve 10 is closed, which plays a role in saving energy.

[0033] 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 steamer, comprising a steam generator, a steam supply channel and a plurality of food placement layers, wherein the steam generated by the steam generator is supplied to the plurality of food placement layers through the steam supply channel, the steam supply channel is provided with a steam valve for each food placement layer, the steam valve is provided with a steam inlet, a steam outlet aimed at the food placement layer, and a blocking block for opening and blocking the steam outlet, wherein: The steam valve is also provided with a steam transfer port. In the steam supply channel, the steam transfer port of the steam valve equipped with a food placement layer other than the last one leads to the steam inlet of the steam valve equipped with the next food placement layer. The steam valve comprises a connecting pipe with open ends, and 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. The steam valve comprises a rotating tube which is sleeved in the connecting pipe and threadedly connected to the connecting pipe, and the blocking block is a part of the rotating tube. The side wall of the connecting pipe has a limiting groove circumferentially provided to expose the rotating tube, and 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.

2. The steamer according to claim 1, characterized in that: At least one food placement layer has a movably removable food placement piece, and the food placement piece is provided with a matching piece that matches with the blocking block of the steam valve as follows: When the food placement piece is placed in the food placement layer, the matching piece enables the blocking block to open the steam outlet, and / or when the food placement piece is taken out of the food placement layer, the matching piece enables the blocking block to block the steam outlet.

3. The steamer according to claim 1, characterized in that: The supply direction of the steam supply channel is from bottom to top. In the steam valve, the steam inlet faces downward and the steam transfer port faces upward.

4. The steamer according to claim 2, characterized in that: The food placement piece is a steaming plate, and the matching piece is a convex block.

5. The steamer according to claim 1, characterized in that: The food placement piece is a steaming plate, and a protrusion is arranged on one side of the steaming plate. When the steaming plate is pushed into the food placement layer, the protrusion pushes the operating bar to move, thereby driving the rotating tube and the blocking block to rotate, so that the blocking block opens the steam outlet.

6. The steamer according to claim 5, characterized in that: The steam valve further comprises a reset mechanism, and when the steaming tray is taken out from the food placement layer, the reset mechanism applies a reset force to the blocking block so that the blocking block returns to a position where the steam outlet is blocked.

7. The steamer according to claim 6, characterized in that: The reset mechanism is an elastic member, which applies elastic force to the operating strip. When the food placement member is taken out from the food placement layer, the operating strip moves under the action of the elastic force, thereby driving the blocking block to return to the position when blocking the steam outlet.

8. The steamer according to claim 7, 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.

9. The steamer according to claim 1 or 2, characterized in that: The external connections between the steam inlet and the steam transfer port are a male and a female structure. In the steam supply channel, the steam transfer port of the steam valve equipped with a food placement layer other than the last one is connected to the steam inlet of the steam valve equipped with the next food placement layer.

10. The steamer according to claim 1 or 2, characterized in that: A sealing member is provided to seal the steam transfer port of the steam valve provided for the last food placement layer.

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