A rice washing device
By combining the basket assembly, the box assembly, and the water circulation assembly, a three-stage separation of bran and rice is achieved, solving the problem of incomplete bran separation in existing devices, saving water resources, and improving washing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN MINZE AGRICULTURAL TECHNOLOGY CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-23
AI Technical Summary
Existing rice washing devices cannot effectively separate bran, resulting in a decline in washing quality and serious waste of water resources.
Design a rice washing device that includes a basket assembly and a box assembly. It uses an overflow trough, a backflow prevention mechanism and a water circulation assembly to achieve three-stage separation of bran, grit and rice. Water circulation reduces water consumption and the use of a figure-7 water outlet pipe and agitation improves the efficiency of impurity removal.
It achieves efficient separation of bran and rice, saves 50% of water consumption, increases impurity removal rate by more than 30%, and shortens operation time by 40%, making it suitable for home and small catering scenarios.
Smart Images

Figure CN224387325U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of rice washing devices, and in particular relates to a rice washing device for rice. Background Technology
[0002] Rice washing devices are practical tools for improving cooking efficiency in modern kitchens. Traditional hand-washing of rice is tedious and easily leads to nutrient loss, but these devices solve these problems through scientific design. They effectively separate impurities and dust from rice grains, saving both labor and water compared to hand-washing, while also speeding up the rice washing process.
[0003] Comparing with Chinese Patent CN216857574U, a rice washing device for processing refined rice is disclosed, including a base plate. Two connecting rods are fixedly connected to the top of the base plate, and a rice washing tank is fixedly connected to the top of the two connecting rods. A top plate is fixedly connected to the top of the rice washing tank, and a motor is fixedly connected to the bottom of the top plate. A transmission rod is fixedly connected to the output shaft of the motor, and a connector is fixedly connected to the bottom of the outer surface of the transmission rod. Multiple stirrers are fixedly connected to the bottom of each connector. A box bottom is fixedly connected to the bottom of the rice washing tank, and a filter screen is fixedly connected to the top of the box bottom. A discharge port is fixedly connected to the left and right sides of the bottom of the box bottom, and a water outlet is fixedly connected to the left side of the bottom of the box bottom. A water inlet is fixedly connected to the left side of the rice washing tank. A disassembly mechanism makes disassembly and maintenance of the sieve plate more convenient.
[0004] However, the aforementioned patent cannot remove the bran contained in the rice during washing, and the bran will be discharged along with the rice after washing, which seriously reduces the quality of washing. Therefore, a new device needs to be designed. Utility Model Content
[0005] The purpose of this invention is to provide a rice washing device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A rice washing device includes a basket assembly for holding rice for washing, and a box assembly for holding water for washing the rice. A water circulation component for inlet and circulating water for washing the rice is provided on one side of the box assembly. The basket assembly is inserted into the top of the box assembly. The box assembly includes a box body with an overflow trough around its top circumference. The top surface of the overflow trough is higher than the top surface of the box body. A return water pipe is provided at the bottom of the overflow trough, with its bottom end penetrating into the box body and equipped with a check valve. A waste discharge pipe with a waste discharge valve is provided in the middle of the bottom of the box body. The water circulation component includes a water pump. The inlet of the water pump is connected to the box body and equipped with a filter head. A water delivery mechanism is installed at the outlet of the water pump.
[0008] Furthermore: the basket assembly includes a basket body, a filter screen is provided at the bottom of the basket body, a limiting edge is provided at the top of the basket body, and two handles are symmetrically installed on the limiting edge.
[0009] Furthermore, the filter screen is a cylindrical shape with an opening at the top, and the top is riveted to the basket body.
[0010] Furthermore: the anti-reverse mechanism includes an anti-reverse seat that is threadedly connected to the end of the return water pipe, an anti-reverse plate is rotatably mounted on the outlet end of the anti-reverse seat, the outlet end face of the anti-reverse seat is inclined, and a counterweight is provided at the bottom of the anti-reverse plate.
[0011] Furthermore, the bottom of the box body is connected to the waste discharge pipe through a tapered transition, and several support legs are evenly distributed around the bottom circumference of the box body.
[0012] Furthermore: the water conveying mechanism includes a three-way pipe installed at the outlet end of the water pump, a swivel seat installed on the top of the three-way pipe, an outlet pipe rotatably installed on the swivel seat, an inlet pipe installed on the side of the three-way pipe, and an inlet valve installed on the inlet pipe.
[0013] Furthermore, the water outlet pipe is shaped like a "7", and the outlet of the water outlet pipe is directly opposite the center of the tank body.
[0014] Compared with existing technologies, the beneficial effects are:
[0015] 1. The cylindrical filter screen at the bottom of the basket intercepts rice, allowing sand and gravel to sink to the bottom of the conical box; floating bran is discharged through the overflow trough, achieving three-stage separation of sand, rice and bran; compared with traditional manual washing, it can save about 50% of water consumption, improve the impurity removal rate by more than 30%, and shorten the operation time by 40%, making it suitable for batch rice processing in home and small catering scenarios.
[0016] 2. The internal recycling of washing water is achieved through the water circulation component (water pump + filter head), reducing water waste; the rotatable 7-shaped water outlet pipe directionally rinses the rice, and manual stirring improves the efficiency of impurity removal;
[0017] 3. The linkage design of overflow trough + check valve mechanism (counterweight block + inclined check valve plate) automatically seals the return water pipe during the washing stage to prevent the loss of clean water, and automatically discharges wastewater during the drainage stage by utilizing the pressure difference, achieving precise water control; the counterweight block + inclined seal of the check valve mechanism ensures that no clean water overflows during washing, and wastewater flows in one direction during drainage; after the waste discharge valve is opened, the system automatically completes the discharge of wastewater / gravel and the recovery of bran in the overflow trough (triggered by the pressure difference of the check valve plate), reducing manual intervention. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a rice washing device for rice according to the present invention;
[0019] Figure 2 This is a schematic diagram of the box and cylinder assembly of a rice washing device according to the present invention;
[0020] Figure 3 This is a right perspective view of the box and cylinder assembly of a rice washing device for rice according to the present invention;
[0021] Figure 4 This is a schematic diagram of the anti-reverse mechanism of a rice washing device according to the present invention;
[0022] Figure 5 This is a schematic diagram of the water circulation component of a rice washing device according to the present invention;
[0023] Figure 6 This is a schematic diagram of the basket assembly of a rice washing device according to the present invention.
[0024] In the attached drawings, the following are the reference numerals: 101, box body; 102, overflow trough; 103, return water pipe; 104, waste discharge pipe; 105, waste discharge valve; 106, support leg; 107, check seat; 108, check plate; 109, counterweight; 201, water pump; 202, filter head; 203, tee pipe; 204, inlet pipe; 205, inlet valve; 206, swivel seat; 207, outlet pipe; 301, basket body; 302, limiting edge; 303, filter screen; 304, handle. Detailed Implementation
[0025] 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.
[0026] Please see Figures 1-6 A rice washing device includes a basket assembly for holding rice for washing, and a box assembly for holding water for washing rice. A water circulation assembly for receiving and circulating water for washing rice is provided on one side of the box assembly, and the basket assembly is inserted into the top of the box assembly.
[0027] In this embodiment: the tank assembly includes a tank body 101, an overflow groove 102 is provided on the top circumference of the tank body 101, the top surface of the overflow groove 102 is higher than the top surface of the tank body 101, a return water pipe 103 is provided at the bottom of the overflow groove 102, the bottom end of the return water pipe 103 passes into the tank body 101 and is equipped with a backflow preventer mechanism, a waste discharge pipe 104 is provided in the middle of the bottom of the tank body 101, and a waste discharge valve 105 is installed on the waste discharge pipe 104; the backflow preventer mechanism includes a backflow preventer seat 107 threadedly connected to the end of the return water pipe 103, a backflow preventer plate 108 is rotatably installed at the outlet end of the backflow preventer seat 107, the outlet end face of the backflow preventer seat 107 is inclined, and a counterweight block 109 is provided at the bottom of the backflow preventer plate 108; the bottom of the tank body 101 and the waste discharge pipe 104 are connected by a tapered transition, and several support legs 106 are evenly distributed on the bottom circumference of the tank body 101; clean water flows through The water flows into the container 101 through the filter screen 303 at the bottom of the basket 301 until it completely submerges the rice, reaching the washing water level. At this time, the check plate 108 rotates under the gravity of the counterweight 109, closing the check seat 107 and preventing the clean water from flowing into the overflow tank 102 along the return pipe 103. After washing, the inlet valve 205 is opened, allowing the clean water to flow back into the basket 301 and submerge the limiting edge 302, driving the bran into the overflow tank 102. Then, the inlet valve 205 is closed, and the waste discharge valve 105 is opened, allowing the wastewater and gravel in the container 101 to be discharged from the waste discharge pipe 104. When the pressure in the container 101 is lower than the pressure in the return pipe 103, the wastewater containing bran in the overflow tank 102 pushes the check plate 108 to open, flowing into the container 101 from the return pipe 103 and being discharged from the waste discharge pipe 104 together.
[0028] In this embodiment: the water circulation component includes a water pump 201, the inlet end of which is connected to the tank body 101 and is equipped with a filter head 202, and the outlet end of the water pump 201 is equipped with a water conveying mechanism; the water conveying mechanism includes a three-way pipe 203 installed at the outlet end of the water pump 201, a swivel seat 206 installed on the top of the three-way pipe 203, an outlet pipe 207 rotatably installed on the swivel seat 206, an inlet pipe 204 installed on the side of the three-way pipe 203, and an inlet valve 205 installed on the inlet pipe 204; the outlet pipe 207 is L-shaped, and the outlet of the outlet pipe 207 faces directly towards Center of the container body 101; under the support of the rotary seat 206, rotate the water outlet pipe 207 so that the water outlet of the water outlet pipe 207 is above the basket body 301, open the water inlet valve 205, so that clean water flows into the three-way pipe 203 through the water inlet pipe 204 and flows out from the water outlet pipe 207 to rinse the rice in the basket body 301. After reaching the rinsing water level, close the water inlet valve 205 and start the water pump 201. The water pump 201 draws water from the container body 101 through the filter head 202 and flows back to the top of the container body 101 through the three-way pipe 203 and the water outlet pipe 207 to rinse the rice.
[0029] In this embodiment: the basket assembly includes a basket body 301, a filter screen 303 is provided at the bottom of the basket body 301, and a limiting edge 302 is provided at the top of the basket body 301. Two handles 304 are symmetrically installed on the limiting edge 302. The filter screen 303 is a cylindrical shape with an open top, and the top is riveted to the basket body 301. First, rice is poured into the basket body 301, and then the handles 304 are held to insert the basket body 301 into the box cylinder 101. The top surface of the box cylinder 101 supports the basket body 301 through the limiting edge 302. When the water level is high enough to submerge the rice, the rice in the basket body 301 is continuously stirred and washed, and the sand and gravel pass through the filter screen 303 and are deposited at the bottom of the box cylinder 101.
[0030] Working principle: First, pour rice into the basket body 301. Then, holding the handle 304, insert the basket body 301 into the box body 101. The top surface of the box body 101 supports the basket body 301 through the limiting edge 302. Then, under the support of the rotary seat 206, rotate the water outlet pipe 207 so that the outlet of the water outlet pipe 207 is above the basket body 301. Open the water inlet valve 205 so that clean water flows into the three-way pipe 203 through the water inlet pipe 204 and flows out from the water outlet pipe 207, rinsing the rice in the basket body 301. Rice and clean water flow through the filter screen 303 at the bottom of the basket 301 into the tank 101 and collect until the water level completely submerges the rice, reaching the washing water level. (The check valve 108 rotates under the weight of the counterweight 109, closing the check seat 107 and preventing clean water from flowing into the overflow tank 102 along the return pipe 103.) At this time, the inlet valve 205 is closed, and the water pump 201 is started. The water pump 201 draws water from the tank 101 through the filter head 202 and discharges it through the three-way pipe 203 and the outlet. Water pipe 207 flows back to the top of the container body 101 to rinse the rice, while simultaneously stirring the rice inside the washing basket 301. Gravel passes through the filter screen 303 and settles to the bottom of the container body 101, while bran floats on the surface. After rinsing, the water pump 201 is turned off, and the inlet valve 205 is opened to allow clean water to flow back into the basket body 301 and submerge the limiting edge 302, carrying the bran into the overflow tank 102. Then, the inlet valve 205 is closed, and the waste discharge valve 105 is opened to allow the rice inside the container body 101 to drain. Wastewater and gravel are discharged from the waste discharge pipe 104. When the pressure inside the tank body 101 is lower than the pressure inside the return water pipe 103, the wastewater containing bran in the overflow tank 102 pushes the check plate 108 to open, flows into the tank body 101 from the return water pipe 103, and is discharged from the waste discharge pipe 104 together. Finally, under the support of the rotary seat 206, the outlet pipe 207 is rotated so that the outlet pipe 207 is rotated out of the tank body 101. The basket body 301 is pulled out by the handle 304 and the washed rice inside is poured out.
[0031] 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. A rice washing device, comprising a basket assembly for holding and washing rice, characterized in that: It also includes a box assembly for holding water to wash rice, and a water circulation component for inlet and circulating water to wash rice is provided on one side of the box assembly, and the basket assembly is inserted into the top of the box assembly; The box assembly includes a box body (101), an overflow groove (102) is provided on the top circumference of the box body (101), the top surface of the overflow groove (102) is higher than the top surface of the box body (101), a return water pipe (103) is provided at the bottom of the overflow groove (102), the bottom end of the return water pipe (103) is inserted into the box body (101) and a check mechanism is installed thereon, a waste discharge pipe (104) is provided in the middle of the bottom of the box body (101), and a waste discharge valve (105) is installed on the waste discharge pipe (104); The water circulation assembly includes a water pump (201), the water pump (201) has its inlet end connected to the inside of the tank body (101) and is equipped with a filter head (202), and the water pump (201) has its outlet end equipped with a water conveying mechanism.
2. The rice washing device according to claim 1, characterized in that: The basket assembly includes a basket body (301), a filter screen (303) is provided at the bottom of the basket body (301), a limiting edge (302) is provided at the top of the basket body (301), and two handles (304) are symmetrically installed on the limiting edge (302).
3. A rice washing device according to claim 2, characterized in that: The filter screen (303) is a cylindrical shape with an open top, and its top is riveted to the basket body (301).
4. A rice washing device according to claim 1, characterized in that: The anti-reverse mechanism includes an anti-reverse seat (107) threadedly connected to the end of the return water pipe (103). An anti-reverse plate (108) is rotatably mounted on the outlet end of the anti-reverse seat (107). The outlet end face of the anti-reverse seat (107) is inclined. A counterweight (109) is provided at the bottom of the anti-reverse plate (108).
5. A rice washing device according to claim 4, characterized in that: The bottom of the box body (101) is connected to the waste discharge pipe (104) through a tapered transition, and a number of support legs (106) are evenly distributed around the bottom circumference of the box body (101).
6. A rice washing device according to claim 1, characterized in that: The water conveying mechanism includes a three-way pipe (203) installed at the outlet end of the water pump (201), a rotating seat (206) installed on the top of the three-way pipe (203), an outlet pipe (207) rotatably installed on the rotating seat (206), an inlet pipe (204) installed on the side of the three-way pipe (203), and an inlet valve (205) installed on the inlet pipe (204).
7. A rice washing device according to claim 6, characterized in that: The water outlet pipe (207) is 7-shaped, and the outlet of the water outlet pipe (207) is directly opposite the center of the box body (101).