Exhaust device of rice steaming cabinet

Abstract

The utility model discloses an exhaust device of a rice steaming cabinet, which relates to the technical field of cooking equipment and comprises an air outlet pipe, the bottom of the air outlet pipe is connected with an exhaust port of the rice steaming cabinet, the side wall of the air outlet pipe is communicated with an exhaust pipe, the air outlet pipe is provided with a valve mechanism, and the valve mechanism is used for adjusting the communication state of the air outlet pipe and the exhaust pipe. The valve mechanism comprises a screw penetrating through the top of the air outlet pipe in a threaded mode, the bottom of the screw is rotationally sleeved with a disc used for pulling the disc to ascend and descend in the air outlet pipe, a limiting rod movably penetrates through the disc, and the bottom of the limiting rod movably penetrates through a spring and is connected to a baffle. A limiting block used for limiting the baffle to move to the bottom of the air outlet pipe is arranged in the air outlet pipe below the baffle, and the air outlet pipe is sleeved with a limiting mechanism. The opening at the communicating position of the exhaust pipe and the air outlet pipe can be opened or closed through air pressure changes, manual control is avoided, use safety is improved, the size of the opening at the communicating position of the exhaust pipe and the air outlet pipe can be adjusted, and various exhaust requirements can be met conveniently.

Description

Technical Field

[0001] This utility model relates to the field of cooking equipment technology, specifically to an exhaust device for a rice steamer. Background Technology

[0002] A rice steamer, also known as a rice cart, rice cabinet, or rice box, is a large kitchen baking device that uses electricity or gas to heat and cook rice. It uses stainless steel steaming trays (stainless steel square trays) as containers, typically made of 304 stainless steel. Rice steamers are commonly used in large canteens in hotels, military units, schools, and factories. Besides steaming rice, steamed buns, and dumplings, rice carts can also steam pork, chicken, duck, and other meats. There are also special seafood steamers for this purpose, and they can also be used to stew soups.

[0003] In the prior art, the invention patent with publication number CN107041679B provides an adjustable exhaust device for a rice steamer, including a transmission box. A fixing block is fixedly installed at the bottom of the inner cavity of the transmission box. A telescopic rod is movably fitted in the middle of the fixing block. A limit block is fixedly installed at one end of the telescopic rod outside the transmission box. A positioning block located inside the transmission box is fixedly installed at the top of the telescopic rod. A telescopic spring located on the telescopic rod is movably installed at the bottom of the positioning block. A transmission plate is fixedly installed at the top of the positioning block. A positioning ring is fixedly installed at the top of the transmission plate. An exhaust plate is fixedly installed at the top of the positioning ring.

[0004] The adjustable exhaust device used in the rice steamer is manually controlled to turn the exhaust on or off, which results in low safety. Once the exhaust is turned on, it cannot be fixed in place, thus failing to meet various exhaust needs. Therefore, we propose an exhaust device for rice steamers to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an exhaust device for a rice steamer to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an exhaust device for a rice steamer, comprising an exhaust pipe connected to the exhaust port of the rice steamer at the bottom, an exhaust pipe connected to the side wall of the exhaust pipe, a valve mechanism on the exhaust pipe, the valve mechanism being used to adjust the communication state between the exhaust pipe and the exhaust pipe, the valve mechanism comprising a screw threaded through the top of the exhaust pipe, a disc rotatably sleeved at the bottom of the screw for pulling the disc up and down within the exhaust pipe, a limit rod moving through the disc, a spring moving through the bottom of the limit rod and connected to a baffle, a limit block for limiting the movement of the baffle to the bottom of the exhaust pipe being provided in the exhaust pipe below the baffle, and a limit mechanism sleeved on the exhaust pipe.

[0007] Preferably, the limiting mechanism is used to restrict the downward movement of the limiting rod.

[0008] Preferably, the limiting mechanism includes a cover fitted over the upper half of the air outlet pipe, and a pull rope for moving and connecting the top of the cover to the top of the limiting rod is movably passed through the top of the cover.

[0009] Preferably, the screw is greater than or equal to the spring's contraction length, the disc diameter is smaller than the air outlet pipe's inner diameter, at least two sets of limiting rods are provided, and the top of the limiting rod has a through hole for assisting in the binding of the pull rope.

[0010] Preferably, the spring diameter is smaller than the exhaust pipe diameter, and the spring length is greater than or equal to the distance between the top of the exhaust pipe and the bottom of the exhaust pipe.

[0011] Preferably, the baffle is used to block the exhaust pipe, and the limiting block has an annular structure and is located below the exhaust pipe.

[0012] Preferably, the cover and the air outlet have the same structure, the cover is a concave cylindrical structure, the number of pull ropes and limiting rods is the same, and the length of the pull rope is greater than the height of the cover.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The rice steamer exhausts gas through the vent and into the exhaust pipe through the bottom of the vent. The increased gas pressure pushes the baffle upward, compressing the spring and pushing the limit plate upward. When the baffle moves above the bottom of the exhaust pipe, the gas can enter the exhaust pipe through the gap between the bottom of the baffle and the exhaust pipe, and then exit through the outer end of the exhaust pipe. Rotating the screw, which is threaded to the top of the exhaust pipe, pushes the disc downward. The downward movement of the disc compresses the spring, reducing its retractable length and thus reducing the upward movement length of the baffle. The opening at the connection between the exhaust pipe and the vent pipe can be opened or closed by changes in gas pressure, avoiding manual control and improving safety.

[0015] 2. Connect the bottom end of the pull rope to the top of the limiting rod, then cover the upper half of the exhaust pipe with the cover. Pull the pull rope upwards to move the limiting rod upwards. The moving limiting rod will pull the baffle upwards through the exhaust pipe. When the baffle moves above the exhaust pipe, the connection between the exhaust pipe and the exhaust pipe is fully open. You can select the stop position of the baffle. Then tie the pull ropes together to restrict the pull ropes from moving downwards. The pull ropes restrict the separation of the cover from the exhaust pipe. The opening size at the connection between the exhaust pipe and the exhaust pipe can be adjusted to meet various exhaust needs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the valve mechanism in this utility model;

[0018] Figure 3This is a schematic diagram of the limiting mechanism in this utility model.

[0019] In the diagram: 1. Air outlet pipe; 2. Exhaust pipe; 3. Valve mechanism; 31. Screw; 32. Disc; 33. Limiting rod; 34. Spring; 35. Baffle; 36. Limiting block; 4. Limiting mechanism; 41. Cover; 42. Pull rope. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 An exhaust device for a rice steamer includes an exhaust pipe 1 connected to the exhaust port of the rice steamer at the bottom. An exhaust pipe 2 is connected to the side wall of the exhaust pipe 1. The diameter of the exhaust pipe 1 is larger than that of the exhaust pipe 2. Multiple sets of exhaust pipes 2 can be installed. A valve mechanism 3 is provided on the exhaust pipe 1 to adjust the communication state between the exhaust pipe 1 and the exhaust pipe 2. The valve mechanism 3 includes a screw 31 threaded through the top of the exhaust pipe 1. A disc 32 is rotatably sleeved at the bottom of the screw 31 for pulling the disc 32 up and down within the exhaust pipe 1. A limit rod 33 moves along the disc 32. The bottom of the limit rod 33 moves along the spring 34 and is connected to a baffle 35. A limit block 36 is provided below the baffle 35 within the exhaust pipe 1 to limit the movement of the baffle 35 to the bottom of the exhaust pipe 1. 31 is greater than or equal to the contracted length of spring 34, the diameter of disc 32 is less than the inner diameter of exhaust pipe 1, at least two sets of limiting rods 33 are provided, the top of the limiting rod 33 moves through the top of exhaust pipe 1 and has a through hole for binding the auxiliary pull rope 42, the diameter of spring 34 is less than the diameter of exhaust pipe 1, the length of spring 34 is greater than or equal to the distance between the top of exhaust pipe 1 and the bottom of exhaust pipe 2, baffle 35 is used to block exhaust pipe 1, baffle 35 can optionally be equipped with an annular guard plate (not labeled), the outer diameter of the annular guard plate is equal to the diameter of baffle 35, the inner diameter of the annular guard plate is greater than the diameter of spring 34 and the diameter of disc 32, the height of the annular guard plate is greater than or equal to the diameter of exhaust pipe 2, the limiting block 36 is annular structure, the limiting block 36 is below exhaust pipe 2.

[0022] The rice steamer exhausts gas through the exhaust port and into the exhaust pipe 1 through the bottom of the exhaust pipe 1. The gas pressure increases, pushing the baffle 35 upward. The upward movement of the baffle 35 compresses the spring 34 and pushes the limiting plate 33 upward. When the baffle 35 moves above the bottom of the exhaust pipe 2, the gas can enter the exhaust pipe 2 through the gap between the bottom of the baffle 35 and the exhaust pipe 2, and then be discharged through the outer end of the exhaust pipe 2. Rotating the screw 31, which is threaded to the top of the exhaust pipe 1, pushes the disc 32 downward. The downward movement of the disc 32 compresses the spring 34, reducing the retractable length of the spring 34, thereby reducing the upward movement length of the baffle 35. This allows the opening at the connection between the exhaust pipe 2 and the exhaust pipe 1 to be opened or closed by air pressure, avoiding manual control and improving safety.

[0023] A limiting mechanism 4 is fitted onto the vent pipe 1. The limiting mechanism 4 is used to restrict the downward movement of the limiting rod 33. The limiting mechanism 4 includes a cover 41 fitted onto the upper half of the vent pipe 1. A pull rope 42 for moving and connecting the top of the limiting rod 33 is movably passed through the top of the cover 41. The cover 41 has the same structure as the vent pipe 1. The cover 41 is a concave cylindrical structure. The number of pull ropes 42 is the same as the number of limiting rods 33. The length of the pull rope 42 is greater than the height of the cover 41.

[0024] Connect the bottom end of the pull rope 42 to the top of the limiting rod 33, then cover the upper half of the exhaust pipe 1 with the cover 41, pull the pull rope 42 upward, and move the limiting rod 33 upward. The limiting rod 33 moves through the exhaust pipe 1 and pulls the baffle 35 upward. When the baffle 35 moves above the exhaust pipe 2, the connection between the exhaust pipe 2 and the exhaust pipe 1 is fully open. The stop position of the baffle 35 can be selected. Then tie the pull ropes 42 together to restrict the pull ropes 42 from moving downward. The pull ropes 42 restrict the separation of the cover 41 from the exhaust pipe 1, so that the opening size of the connection between the exhaust pipe 2 and the exhaust pipe 1 can be adjusted to meet various exhaust needs.

[0025] Working principle: This utility model rice steamer exhausts gas through the exhaust port and enters the exhaust pipe 1 through the bottom of the exhaust pipe 1. When the gas pressure increases to a level that can push the baffle 35, the baffle 35 moves upward. The upward movement of the baffle 35 compresses the spring 34 and pushes the limiting plate 33 upward. When the baffle 35 moves above the bottom of the exhaust pipe 2, the gas can enter the exhaust pipe 2 through the gap between the bottom of the baffle 35 and the exhaust pipe 2, and then be discharged through the outer end of the exhaust pipe 2. Rotating the screw 31, which is threaded to the top of the exhaust pipe 1, pushes the disc 32 downward. The downward movement of the disc 32 compresses the spring 34, reducing the retractable length of the spring 34, thereby reducing the upward movement length of the baffle 35. This allows the steamer to be opened or closed by changes in gas pressure. The opening at the connection between the exhaust pipe 2 and the outlet pipe 1 is closed to avoid manual control and improve safety. The bottom end of the pull rope 42 is connected to the top of the limiting rod 33. Then, the cover 41 is placed over the upper half of the outlet pipe 1. Pulling the pull rope 42 moves the limiting rod 33 upward. The limiting rod 33 moves through the outlet pipe 1 and pulls the baffle 35 upward. When the baffle 35 moves above the exhaust pipe 2, the connection between the exhaust pipe 2 and the outlet pipe 1 is fully open. The stop position of the baffle 35 can be selected. Then, the pull ropes 42 are tied together to restrict the downward movement of the pull ropes 42. The pull ropes 42 restrict the separation of the cover 41 from the outlet pipe 1, so that the opening size at the connection between the exhaust pipe 2 and the outlet pipe 1 can be adjusted to meet various exhaust needs.

[0026] The exhaust vent of the rice steamer is existing technology and will not be described in detail here.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An exhaust device for a rice steamer, comprising an exhaust pipe (1) connected at the bottom to the exhaust port of the rice steamer, characterized in that: An exhaust pipe (2) is connected to the side wall of the exhaust pipe (1). A valve mechanism (3) is provided on the exhaust pipe (1). The valve mechanism (3) is used to adjust the communication state between the exhaust pipe (1) and the exhaust pipe (2). The valve mechanism (3) includes a screw (31) threaded through the top of the exhaust pipe (1). A disc (32) is rotatably sleeved at the bottom of the screw (31) for pulling the disc (32) up and down inside the exhaust pipe (1). A limit rod (33) moves through the disc (32). The bottom of the limit rod (33) moves through a spring (34) and is connected to a baffle (35). A limit block (36) is provided in the exhaust pipe (1) below the baffle (35) to limit the movement of the baffle (35) to the bottom of the exhaust pipe (1). A limit mechanism (4) is sleeved on the exhaust pipe (1).

2. The exhaust device of the rice steamer according to claim 1, characterized in that: The limiting mechanism (4) is used to restrict the downward movement of the limiting rod (33).

3. The exhaust device of the rice steamer according to claim 2, characterized in that: The limiting mechanism (4) includes a cover (41) fitted onto the upper half of the air outlet pipe (1), and a pull rope (42) for moving and connecting the top of the cover (41) is movably passed through it.

4. The exhaust device of the rice steamer according to claim 1, characterized in that: The screw (31) is greater than or equal to the contraction length of the spring (34), the diameter of the disc (32) is smaller than the inner diameter of the air outlet pipe (1), and at least two sets of the limiting rod (33) are provided. The top of the limiting rod (33) is provided with a through hole for assisting the binding of the pull rope (42).

5. The exhaust device of the rice steamer according to claim 1, characterized in that: The diameter of the spring (34) is smaller than the diameter of the exhaust pipe (1), and the length of the spring (34) is greater than or equal to the distance between the top of the exhaust pipe (1) and the bottom of the exhaust pipe (2).

6. The exhaust device of the rice steamer according to claim 1, characterized in that: The baffle (35) is used to block the exhaust pipe (1), and the limiting block (36) is a ring structure, located below the exhaust pipe (2).

7. The exhaust device of the rice steamer according to claim 3, characterized in that: The cover (41) has the same structure as the air outlet (1). The cover (41) is a concave cylindrical structure. The number of pull ropes (42) and limit rods (33) is the same. The length of the pull ropes (42) is greater than the height of the cover (41).

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