Double-convection draining rack

Abstract

A double-convection draining frame comprises a fixing box, an air blowing assembly and a Venturi tube, an air blowing cavity, an installation cavity and an air return cavity are formed in the fixing box, the Venturi tube is fixed in the installation cavity and communicated with the air blowing cavity and the air return cavity, air is blown to the Venturi tube through the air blowing assembly, the air blowing assembly is installed on the air blowing cavity, and the air blowing cavity is communicated with the installation cavity and the air return cavity. The air blowing assembly blows air to the air blowing cavity, so that air flows into the venturi tube from the air blowing cavity and then flows into the air return cavity from the venturi tube, a hanging tube is arranged on the venturi tube, the hanging tube extends out of the mounting cavity, the to-be-drained component is hung through a hanging rod, primary convection is formed in the to-be-drained component through the venturi tube, and therefore the to-be-drained component can be dried. Therefore, evaporation of water in the to-be-drained part is accelerated. The mounting cavity is communicated with the air return cavity, an air blowing groove is formed in the side wall of the mounting cavity, and the to-be-drained part hung on the hanging rod is blown through the air blowing groove, so that secondary convection is formed on the surface and the interior of the to-be-drained part.

Description

Technical Field

[0001] This utility model belongs to the field of drain rack technology, specifically relating to a double convection drain rack. Background Technology

[0002] A drain rack is a tool used to place and drain washed utensils. It consists of a base and a support rod for hanging the utensils, which then dry naturally through evaporation. Currently, some drain racks on the market are equipped with fans. The fan, combined with the airflow over the utensils, speeds up the drying process. However, most utensils (such as test tubes, measuring cylinders, and beakers) are open at one end, preventing the airflow from the fan from reaching the inside of the utensil and thus affecting the drying rate. Summary of the Invention

[0003] To address the above shortcomings, the technical problem to be solved by this utility model is to provide a double-convection drain rack. By implementing double-circulation airflow for items placed on the drain rack, airflow circulation inside the appliance is facilitated, thereby increasing the drain rack's drainage efficiency.

[0004] To solve the above technical problems, the technical solution adopted by this utility model is as follows:

[0005] A dual-convection drain rack includes a fixed box, an air blowing assembly, and a venturi tube. The fixed box has an air blowing chamber, a mounting chamber, and a return air chamber. The venturi tube is fixed in the mounting chamber and communicates with both the air blowing chamber and the return air chamber. The mounting chamber communicates with the return air chamber. An air blowing groove is provided on the side wall of the mounting chamber. The air blowing assembly is installed on the air blowing chamber and blows air into the air blowing chamber, causing the gas to flow sequentially through the venturi tube, the return air chamber, the mounting chamber, and the air blowing groove. A hanging pipe is provided on the venturi tube, which extends out of the mounting chamber.

[0006] In a preferred embodiment of this utility model, the hanging pipe extends out of the mounting cavity through an air blowing groove.

[0007] As a preferred embodiment of this utility model, the fixing box is provided with a first partition plate and a second partition plate, an air blowing chamber is formed above the first partition plate, an air return chamber is formed below the second partition plate, and an installation cavity is formed between the first partition plate and the second partition plate.

[0008] As a preferred embodiment of this utility model, a connecting groove is provided on the second partition plate to connect the return air cavity and the installation cavity.

[0009] As a preferred embodiment of this utility model, the venturi tube has a constricted section in the middle, and the connecting pipe is connected to the constricted section.

[0010] As a preferred embodiment of this utility model, the end of the hanging pipe is detachably fitted with an end cap or a support pipe.

[0011] As a preferred embodiment of this utility model, the side wall of the support tube is provided with an air intake groove.

[0012] As a preferred embodiment of this utility model, a water collection box is connected to the bottom of the fixing box, and the water collection box is arranged below the hanging pipe.

[0013] As a preferred embodiment of this utility model, the bottom of the return air cavity is provided with a drainage groove, and the water collection box is connected to the return air cavity through the drainage groove.

[0014] As a preferred embodiment of the present invention, the air blowing assembly includes multiple fans arranged between adjacent venturi tubes.

[0015] The beneficial effects of this utility model are: (1) by accelerating the internal gas flow rate of the component to be drained, the evaporation of water inside the component to be drained is accelerated, thereby improving the draining efficiency of the component to be drained.

[0016] (2) By blowing air into the air groove of the hanging pipe, secondary convection is formed on the surface and inside of the part to be drained, thereby further accelerating the evaporation of moisture inside the part to be drained. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the drain rack.

[0018] Figure 2 This is a cross-sectional view of the drain rack.

[0019] Figure 3 This is a magnified view of a portion of point A.

[0020] Figure 4 This is a cross-sectional view of a venturi tube.

[0021] Reference numerals: Fixing box 1, Air blowing chamber 1-1, Mounting chamber 1-2, Return air chamber 1-3, Air blowing groove 1-4, First partition plate 1-5, Second partition plate 1-6, Connecting groove 1-7, Drainage groove 1-8, Air blowing assembly 2, Fan 2-1, Venturi tube 3, Hanging pipe 3-1, Narrow section 3-2, End cap 3-3, Support tube 3-4, Air intake groove 3-5, First pipe section 3-6, Second pipe section 3-7, Water collection box 4. Detailed Implementation

[0022] The present invention will now be further described with reference to the accompanying drawings.

[0023] A dual-convection drain rack includes a fixed box 1, an air blowing assembly 2, and a venturi tube 3. The fixed box 1 contains an air blowing chamber 1-1, a mounting chamber 1-2, and a return air chamber 1-3. The venturi tube 3 is fixed in the mounting chamber 1-2 and communicates with both the air blowing chamber 1-1 and the return air chamber 1-3. Air is blown into the venturi tube 3 by the air blowing assembly 2, which is mounted on the air blowing chamber 1-1. This causes the gas to flow from the air blowing chamber 1-1 into the venturi tube 3, and then out through the venturi tube 3. The air flows into the return air chamber 1-3. A hanging pipe 3-1 is provided on the venturi tube 3. The hanging pipe 3-1 extends out of the mounting chamber 1-2. The part to be drained is hung on the hanging rod 3-1. The air velocity in the venturi tube 3 is high and the pressure is low, which makes the airflow from the end of the hanging pipe 3-1 toward the venturi tube 3 form in the hanging rod 3-1. That is, a negative pressure is formed in the hanging rod 3-1, which draws the air inside the part to be drained into the hanging rod 3-1, thereby forming a convection inside the part to be drained, so as to accelerate the evaporation of moisture inside the part to be drained. The mounting cavity 1-2 is connected to the return air cavity 1-3, so that the airflow flowing into the return air cavity 1-3 through the venturi tube 3 flows into the mounting cavity 1-2. An air blowing groove 1-4 is provided on the side wall of the mounting cavity 1-2, and the air blowing groove 1-4 faces the hanging pipe 3-1, so that the airflow blows on the parts to be drained that are hung on the hanging rod 3-1, thereby forming secondary convection on the surface and inside of the parts to be drained, thereby further accelerating the evaporation of moisture inside the parts to be drained.

[0024] In this embodiment, the hanging pipe 3-1 extends out of the mounting cavity 1-2 through the air blowing groove 1-4. Preferably, the air blowing groove 1-4 is oriented along the axial direction of the hanging pipe 3-1 so that at least part of the airflow output through the air blowing groove 1-4 blows towards the inside of the component to be drained, further accelerating the evaporation of moisture inside the component to be drained.

[0025] The fixed box 1 is provided with a first partition plate 1-5 and a second partition plate 1-6. An air blowing chamber 1-1 is formed above the first partition plate 1-5. An installation chamber 1-2 is formed between the first partition plate 1-5 and the second partition plate 1-6. A return air chamber 1-3 is formed below the second partition plate 1-6. A connecting groove 1-7 is provided on the second partition plate 1-6 to connect the return air chamber 1-3 and the installation chamber 1-2.

[0026] The venturi tube 3 includes a first pipe section 3-6 and a second pipe section 3-7 with the same diameter, and a constricted section 3-2 with a smaller diameter than the first pipe section 3-6 and the second pipe section 3-7. The constricted section 3-2 is connected to the first pipe section 3-6 and the second pipe section 3-7 respectively. The connecting pipe 3-1 is connected to the constricted section 3-2. The airflow flows through the first pipe section 3-6, the constricted section 3-2 and the second pipe section 3-7 in sequence. Since the inner diameter of the constricted section 3-2 is smaller, the flow velocity of the constricted section 3-2 increases when the flow rate is inconvenient, thereby further reducing the air pressure at the constricted section 3-2. This increases the flow velocity of the airflow formed inside the connecting rod 3-1, which flows from the end of the connecting pipe 3-1 toward the venturi tube 3, thereby further accelerating the gas flow velocity on the inner surface of the component to be drained.

[0027] An end cap 3-3 or a support tube 3-4 is detachably installed at the end of the hanging pipe 3-1. When it is necessary to drain the parts, the support tube 3-4 is fixed on the hanging pipe 3-1, and the parts to be drained are hung on the support tube 3-4. When the venturi tube 3 is not hung with the parts to be drained, the end cap 3-3 is used to seal the end of the hanging pipe 3-1 to prevent foreign objects from entering the hanging pipe 3-1.

[0028] Multiple air intake grooves 3-5 are provided on the side wall of the support tube 3-4 so that air in the component to be drained can flow into the support tube 3-4 through the air intake grooves 3-5.

[0029] The bottom of the fixed box 1 is connected to a water collection box 4, which is located below the hanging pipe 3-1. The water collection box 4 collects the liquid dripping from the parts to be drained.

[0030] During the use of the support pipe 3-4, some liquid on the part to be drained will drip onto the support pipe 3-4, causing the liquid to flow into the support pipe 3-4 through the air intake groove 3-5, and then be transported to the return air chamber 1-3 through the venturi tube 3. To prevent the liquid from accumulating in the return air chamber 1-3, a drainage groove 1-8 is provided at the bottom of the return air chamber 1-3. The water collection box 4 is connected to the return air chamber 1-3 through the drainage groove 1-8, so as to pour the liquid in the return air chamber 1-3 out of the return air chamber 1-3.

[0031] The air blowing assembly 2 includes multiple fans 2-1, which are arranged between adjacent venturi tubes 3 to ensure that the air volume in each venturi tube 3 is as consistent as possible, and to ensure that each venturi tube 3 can draw air from the parts to be drained that are hung on it through the connecting pipe 3-1.

[0032] The working principle of this draining rack is as follows:

[0033] When fan 2-1 operates, it blows air into air chamber 1-1 to form an airflow. The airflow flows into venturi tube 3, increasing the air velocity inside venturi tube 3. The pressure difference between the air pressure inside hanging rod 3-1 and venturi tube 3 causes the air inside hanging rod 3-1 to flow towards venturi tube 3, thereby drawing air from the inside of the component to be dried and accelerating the evaporation of moisture inside. The airflow flows through venturi tube 3 into return air chamber 1-3. The airflow in return air chamber 1-3 flows through connecting groove 1-7 into mounting chamber 1-2. Then, the air blowing groove 1-4 on mounting chamber 1-2 blows air onto the outside and inside of the component to be dried, accelerating the overall evaporation of moisture in the component to be dried.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0035] Although this document uses many terms corresponding to the reference numerals in the figures, the possibility of using other terms is not excluded; these terms are used only to more conveniently describe and explain the essence of this utility model; interpreting them as any kind of additional limitation would be contrary to the spirit of this utility model.

Claims

1. A dual counterflow drip rack characterized by, The draining rack comprises a fixed box (1), a blowing assembly (2) and a Venturi tube (3), the fixed box (1) is internally provided with a blowing cavity (1-1), a mounting cavity (1-2) and an air return cavity (1-3), the Venturi tube (3) is fixed in the mounting cavity (1-2), and the Venturi tube (3) is in communication with the blowing cavity (1-1) and the air return cavity (1-3) respectively, the mounting cavity (1-2) is in communication with the air return cavity (1-3), and a blowing groove (1-4) is arranged on the side wall of the mounting cavity (1-2), the blowing assembly is mounted on the blowing cavity (1-1), the blowing cavity (1-1) is blown by the blowing assembly (2), so that the gas flows through the Venturi tube (3), the air return cavity (1-3), the mounting cavity (1-2) and the blowing groove (1-4) in sequence, and the Venturi tube (3) is provided with a hanging pipe (3-1) that extends out of the mounting cavity (1-2).

2. A dual convection drainage rack according to claim 1, wherein, The hanging pipe (3-1) extends out of the mounting cavity (1-2) through the blowing groove.

3. A dual convection drainage rack as claimed in claim 1, wherein, The fixed box (1) is internally provided with a first partition plate (1-5) and a second partition plate (1-6), the blowing cavity (1-1) is formed above the first partition plate (1-5), the air return cavity (1-3) is formed below the second partition plate (1-6), and the mounting cavity (1-2) is formed between the first partition plate (1-5) and the second partition plate (1-6).

4. A dual convection drainage rack according to claim 3, wherein, The second partition plate (1-6) is provided with a connecting groove (1-7) above, so as to communicate the air return cavity (1-3) and the mounting cavity (1-2) through the connecting groove (1-7). The Venturi tube (3) is provided with a necked section (3-2) in the middle, and the hanging pipe (3-1) is connected to the necked section (3-2).

5. The dual counterflow drip rack of claim 1, wherein, An end cover (3-3) or a supporting pipe (3-4) is detachably mounted at the end of the hanging pipe (3-1).

6. The dual counterflow drip rack of claim 1, wherein, The supporting pipe (3-4) is provided with an air suction groove (3-5) on the side wall.

7. A dual counterflow drip rack according to claim 6, wherein, The fixed box (1) is connected with a water collecting box (4) at the bottom, and the water collecting box (4) is arranged below the hanging pipe (3-1).

8. The dual counterflow drip rack of claim 1, wherein, The bottom of the air return cavity (1-3) is provided with a drainage groove (1-8), and the water collecting box (4) is in communication with the air return cavity (1-3) through the drainage groove (1-8).

9. A dual convection drainage rack according to claim 8, wherein, The blowing assembly (2) comprises a plurality of fans (2-1), and the fans (2-1) are arranged between adjacent Venturi tubes (3).

10. The dual counterflow drip rack of claim 1, wherein, ​

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