A fruit and vegetable cleaning water circulation device

Abstract

The utility model provides a kind of fruit and vegetable cleaning water circulation device, it is related to engineering surveying and mapping technical field, including cleaning pool and water storage tank, water storage tank is located cleaning pool side, the upper of cleaning pool is provided with spray cleaning mechanism, spray cleaning mechanism includes stand, the upper end of stand is fixedly connected with spray pipe, through spray cleaning mechanism, water pump, delivery pipe, spray head, realize fruit and vegetable efficient cleaning, reflux pipe, solenoid valve, flow sensor cooperate, accurately control sewage recovery, flush cleaning mechanism passes through servo motor, worm gear, rotating sleeve, drive cleaning brush and high pressure nozzle linkage, when backwash, not interrupt spray water supply, solve traditional device flush need to stop supply problem, filter shell, filter screen guarantee water circulation filtration, blow-off pipe, solenoid valve timely desilting, liquid level sensor linkage water replenishment, whole process integration PLC control, not only improve the flush quality of filter screen, also guarantee the effect of fruit and vegetable cleaning uninterrupted.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a water circulation device for washing fruits and vegetables. Background Technology

[0002] Besides being beneficial to human health, fruits and vegetables also play an important role in regulating people's taste because they contain various organic acids, aromatic substances, and pigments. Appropriately combining fruits and vegetables in the diet can achieve the goals of weight loss and health care while satisfying the palate. Before quick-frozen fruits and vegetables, they need to be washed, blanched, and cooled. When washing fruits and vegetables, they are put into a washing tank and rinsed by spraying. The existing fruit and vegetable washing water will be mixed with mud and impurities after use. In order to save costs and follow the principle of environmental protection and reuse, the wastewater is usually filtered and recycled.

[0003] For example, the fruit and vegetable washing water circulation device disclosed in Chinese patent literature (publication number: CN222111056U) achieves automated rinsing of impurities adsorbed on the lower surface of the annular filter screen and discharges the impurities from the filter tube through a reverse rinsing device. This not only reduces manual labor but also avoids repeated disassembly and assembly, thus improving the efficiency of the washing water circulation.

[0004] However, due to the small diameter of the filter pipe, the annular filter screen is prone to frequent clogging. Once clogged, the water supply to the spray head must be stopped, and the water flow must be directed to the filter pipe for backwashing. This operation directly interrupts the fruit and vegetable washing process, affecting the continuous water supply to the spray head and reducing the overall washing efficiency. In addition, the distance between the flushing pipe and the filter screen is relatively far, and with the presence of pipe bends, the pressure of the water flow decreases significantly when it reaches the filter screen, making it difficult to form an effective impact force. This results in the filter screen not being thoroughly flushed, and frequent backwashing still cannot guarantee the filtration effect. This not only increases the frequency of backwashing but also further delays the fruit and vegetable washing time. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the incomplete removal of impurities during filter backwashing and the interruption of water supply to the spray head, which seriously affects the efficiency of fruit and vegetable cleaning.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A fruit and vegetable washing water circulation device includes a washing pool and a water storage tank. The water storage tank is located on one side of the washing pool. A spray cleaning mechanism is provided above the washing pool. The spray cleaning mechanism includes a column, with a spray pipe fixedly connected to the upper end of the column. Spray heads arranged in a linear array are fixedly installed below the spray pipe. A first return pipe is fixedly connected to the lower end of the washing pool. A worm gear flow sensor is fixedly installed at one end of the first return pipe. A second return pipe is fixedly connected to one end of the worm gear flow sensor. A first solenoid valve is fixedly installed outside the second return pipe. A rinsing and cleaning mechanism is provided on one side of the water storage tank.

[0008] Preferably, a liquid level sensor is fixedly installed on one inner wall of the water storage tank, a water supply pipe is fixedly connected to the upper end of the water storage tank, a water pump is fixedly installed at the upper end of the water storage tank, and a first delivery pipe is fixedly connected to the outlet end of the water pump. One end of the first delivery pipe is fixedly connected to one end of the spray pipe.

[0009] Preferably, the rinsing and cleaning mechanism includes a fixed frame, the outside of which is fixedly connected to one side of the water storage tank, a filter housing is fixedly sleeved on the inner wall of the fixed frame, and the outside of the filter housing is fixedly connected to one end of the second return pipe.

[0010] Preferably, a filter screen is fixedly sleeved on the inner wall of the filter housing, a guide pipe is fixedly connected to the outside of the filter housing, one end of the guide pipe is fixedly connected to one side of the water storage tank, and a drain pipe is fixedly connected to the lower end of the filter housing.

[0011] Preferably, a second solenoid valve is fixedly installed on the outside of the sewage pipe, and a rotating sleeve is rotatably connected to the upper end of the filter housing through a sealed bearing. The lower end of the rotating sleeve passes through and extends to the bottom of the filter screen.

[0012] Preferably, the lower end of the rotating sleeve is fixedly connected to a symmetrically distributed cleaning brush, the upper end of the rotating sleeve is fixedly sleeved with a worm gear, the outside of the rotating sleeve is fixedly connected to a symmetrically distributed diverter pipe, and the lower end of the diverter pipe is fixedly connected to a high-pressure nozzle distributed in a linear array.

[0013] Preferably, a servo motor is fixedly installed at the upper end of the filter housing, and a worm gear is fixedly installed on the output shaft of the servo motor through a coupling. The outer surface of the worm gear meshes with the tooth surface of the worm wheel. A booster pump is fixedly installed at the upper end of the water storage tank, and a second delivery pipe is fixedly connected to the outlet end of the booster pump. One end of the second delivery pipe is rotatably connected to the upper inner wall of the rotating sleeve through a sealed bearing.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, the water pump, delivery pipe, and spray head in the spray cleaning mechanism achieve efficient cleaning of fruits and vegetables. The return pipe, solenoid valve, and flow sensor work together to accurately control wastewater recycling. The rinsing and cleaning mechanism, through a servo motor, worm gear, and rotating sleeve, drives the cleaning brush and high-pressure nozzle in linkage, ensuring uninterrupted spray water supply during backwashing and solving the problem of water supply interruption required by traditional devices. The filter housing and filter screen ensure water circulation filtration, the sewage pipe and solenoid valve promptly remove sludge, and the liquid level sensor links to water replenishment. The entire process is integrated with PLC control, which not only improves the rinsing quality of the filter screen but also ensures uninterrupted cleaning of fruits and vegetables. Attached Figure Description

[0016] Figure 1 A schematic diagram of the main structure of a fruit and vegetable washing water circulation device provided by this utility model;

[0017] Figure 2 A three-dimensional view of the water storage tank structure of a fruit and vegetable washing water circulation device provided by this utility model;

[0018] Figure 3 A perspective view of the filter housing structure of a fruit and vegetable washing water circulation device provided by this utility model;

[0019] Figure 4 A perspective view of the rotating sleeve structure of a fruit and vegetable washing water circulation device provided by this utility model.

[0020] Legend: 1. Cleaning pool; 2. Water storage tank; 3. Column; 31. Spray pipe; 32. Spray head; 33. First return pipe; 34. Worm gear flow sensor; 35. Second return pipe; 36. First solenoid valve; 37. Liquid level sensor; 38. Water supply pipe; 39. Water pump; 310. First delivery pipe; 4. Fixing frame; 41. Filter housing; 42. Filter screen; 43. Guide pipe; 44. Sewage pipe; 45. Second solenoid valve; 46. Rotating sleeve; 47. Cleaning brush; 48. Worm gear; 49. Diverter pipe; 410. High-pressure nozzle; 411. Servo motor; 412. Worm; 413. Booster pump; 414. Second delivery pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] Example

[0026] like Figures 1-4 As shown, this utility model provides a technical solution: a fruit and vegetable washing water circulation device, including a washing pool 1 and a water storage tank 2. The water storage tank 2 is located on one side of the washing pool 1, and is also equipped with a spray washing mechanism and a rinsing cleaning mechanism. The various components are linked together by PLC integrated control.

[0027] The column 3 provides stable support for the spray pipe 31, ensuring that the spray pipe 31 can maintain a horizontal and fixed position, providing a foundation for the installation and operation of the spray head 32. The spray pipe 31 can distribute the cleaning water delivered by the water pump 39, so that the water flow can evenly enter each spray head 32. The spray heads 32, which are distributed in a linear array, can form a uniform water curtain above the cleaning pool 1, so as to thoroughly and efficiently clean the fruits and vegetables in the pool, ensuring that the impurities on the surface of the fruits and vegetables can be fully washed away, thereby improving the cleaning effect and efficiency.

[0028] The first return pipe 33 and the second return pipe 35 form a sewage return channel, which can promptly transport the sewage in the cleaning tank 1 to the filter housing 41 for treatment. The worm gear flow sensor 34 can monitor the sewage flow rate in real time and accurately, providing data for judging whether the filter screen 42 is clogged.

[0029] The first solenoid valve 36 can flexibly open or close the sewage return channel according to the control instructions of the PLC, so as to achieve precise control of the sewage recycling process. During the normal cleaning stage, the first solenoid valve 36 is opened to allow sewage to enter the filter housing 41. During the backwashing stage, the first solenoid valve 36 is closed to cut off the sewage inflow, ensuring the smooth progress of the backwashing process.

[0030] The liquid level sensor 37 can monitor the liquid level in the water storage tank 2 in real time, providing an accurate signal for water replenishment. When the liquid level is lower than the preset threshold, the PLC controls the solenoid valve on the water replenishment pipe 38 to open, realizing the automatic injection of external clean water. When the liquid level rises back to the normal threshold, the solenoid valve closes and water replenishment stops. This ensures that the water volume in the water storage tank 2 is always kept within a reasonable range, ensuring the stable operation of the entire water circulation system and avoiding equipment malfunction due to water shortage.

[0031] As a power source, the water pump 39 pressurizes the cleaning water in the water storage tank 2 and delivers it to the spray pipe 31 through the first delivery pipe 310, providing a stable water flow pressure for the spray head 32. This ensures that the spray head 32 can spray out a uniform and powerful water curtain, achieving effective cleaning of fruits and vegetables. The first delivery pipe 310 connects the water pump 39 and the spray pipe 31. Its pipe design ensures smooth water flow, reduces pressure loss, and improves the efficiency of water resource utilization.

[0032] The mounting bracket 4 provides a stable installation support for the filter housing 41, ensuring that the filter housing 41 will not shift or shake during operation, thus guaranteeing the stability of the filtration and backwashing process. The filter housing 41 is the core of the sewage filtration and backwashing operation. Its internal filter screen 42 can effectively trap impurities in the sewage, allowing the filtered clean water to flow back to the water storage tank 2 through the guide pipe 43, thereby realizing the recycling of water resources.

[0033] The second return pipe 35 introduces wastewater into the filter housing 41, the drain pipe 44 is used to discharge wastewater and impurities from the filter housing 41 during backwashing, and the guide pipe 43 sends the filtered clean water back to the water storage tank 2. The reasonable arrangement of these pipes ensures the smooth operation of the entire flushing and cleaning process.

[0034] The filter screen 42 is a key component for wastewater filtration. It effectively traps impurities in the wastewater, ensuring that the water returning to the storage tank 2 is clean water, thus improving the efficiency of water resource recycling. The second solenoid valve 45 is installed on the drain pipe 44. According to the control command of the PLC, it opens during the backwashing stage to discharge wastewater and impurities from the filter housing 41, and closes during the normal filtration stage to ensure that wastewater can pass smoothly through the filter screen 42 for filtration. This enables effective management of wastewater and impurities within the filter housing 41, ensuring the normal operation of filtration and backwashing functions.

[0035] The rotating sleeve 46 is rotatably connected to the upper end of the filter housing 41 via a sealed bearing, enabling stable rotation during backwashing. The symmetrical cleaning brush 47 at its lower end can brush the lower surface of the filter screen 42 as the rotating sleeve 46 rotates, thoroughly brushing off the impurities loosened by the high-pressure water flow and improving the cleaning effect of the filter screen 42.

[0036] The worm gear 48 at the upper end of the rotating sleeve 46 meshes with the worm 412, realizing the transmission of power. This allows the rotation of the servo motor 411 to be converted into the rotation of the rotating sleeve 46. The symmetrically distributed diverter pipes 49 can divert the high-pressure water delivered by the booster pump 413. The high-pressure water is sprayed out through the high-pressure nozzles 410 arranged in a linear array at the lower end, impacting the lower surface of the filter screen 42 and loosening the trapped impurities, making it easier for the cleaning brush 47 to clean. This dual cleaning method of rinsing and brushing can effectively improve the cleaning quality and efficiency of the filter screen 42 and ensure the normal filtering function of the filter screen 42.

[0037] The servo motor 411, as a power source, can precisely control the rotation of the worm gear 412. Through meshing with the worm wheel 48, it drives the rotating sleeve 46 to achieve stable and controllable rotation, providing power support for the operation of the cleaning brush 47 and the high-pressure nozzle 410. The booster pump 413 can pressurize the clean water in the water tank 2 and deliver it to the rotating sleeve 46 through the second delivery pipe 414, providing high-pressure water flow to the high-pressure nozzle 410. The second delivery pipe 414 is rotatably connected to the upper inner wall of the rotating sleeve 46 through a sealed bearing, which can not only ensure the smooth delivery of high-pressure water, but also adapt to the rotation of the rotating sleeve 46, ensuring the stability and continuity of the backwashing process.

[0038] The working process of this utility model:

[0039] Step 1: The external PLC programmable controller is started, the first solenoid valve 36 is opened, the second solenoid valve 45 is closed, the booster pump 413 and servo motor 411 are in standby mode, the water supply pipe 38 is closed, the PLC triggers the water pump 39 to start, the cleaning water in the water storage tank 2 is transported to the spray pipe 31 through the first delivery pipe 310, after the water flow is stabilized in the spray pipe 31, it is sprayed downward by the linearly arrayed spray heads 32 to form a uniform water curtain, covering the fruits and vegetables in the cleaning pool 1 to achieve the initial cleaning, the wastewater after cleaning carries the fruit and vegetable impurities and flows into the first return pipe 33 from the lower end of the cleaning pool 1, the worm gear flow sensor 34 monitors the wastewater flow rate in real time, the wastewater enters the filter housing 41 through the second return pipe 35 and the first solenoid valve 36, when the wastewater passes through the filter screen 42, the impurities are intercepted, and the filtered clean water flows back to the water storage tank 2 through the guide pipe 43;

[0040] Step 2: The worm gear flow sensor 34 continuously collects sewage flow rate data. When the flow rate drops to the PLC preset threshold, it is determined that the filter screen 42 is blocked. The PLC immediately executes the backwashing program, closes the first solenoid valve 36 to cut off the sewage from entering the filter housing 41, and opens the second solenoid valve 45 to discharge the sewage remaining in the filter housing 41 through the drain pipe 44 to prevent impurities from flowing back. The PLC starts the booster pump 413. The clean water in the water tank 2 is pressurized through the second conveying pipe 414 and then conveyed to the upper end of the rotating sleeve 46. The high-pressure water is split in the rotating sleeve 46 and conveyed to the high-pressure nozzle 410 through the symmetrically distributed diversion pipes 49. The high-pressure water jet is sprayed out from the lower end to impact the impurities trapped on the lower surface of the filter screen 42.

[0041] Step 3: The PLC synchronously starts the servo motor 411, whose output shaft drives the worm gear 412 to rotate. The worm gear 412 meshes with the worm wheel 48 at the upper end of the rotating sleeve 46, driving the rotating sleeve 46 to rotate around the sealed bearing. The symmetrical cleaning brush 47 at the lower end of the rotating sleeve 46 synchronously brushes the lower surface of the filter screen 42 as it rotates, brushing off the loosened impurities by the impact of the high-pressure water flow. This, combined with the high-pressure nozzle 410, achieves rinsing and brushing for double cleaning. During this process, the water pump 39 continues to run, and the spray head 32 supplies water normally to clean the fruits and vegetables, ensuring that the cleaning operation is not interrupted. Backwashing continues until the PLC presets a timer, or the worm wheel flow sensor 34 detects that the sewage flow rate has returned to normal. The PLC then sequentially shuts down the booster pump 413, the servo motor 411, closes the second solenoid valve 45, and opens the first solenoid valve 36, entering the next round of water circulation.

[0042] 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 fruit and vegetable washing water circulation device, comprising a washing pool (1) and a water storage tank (2), characterized in that: The water storage tank (2) is located on one side of the cleaning pool (1), and a spray cleaning mechanism is provided above the cleaning pool (1). The spray cleaning mechanism includes a column (3), a spray pipe (31) is fixedly connected to the upper end of the column (3), a spray head (32) arranged in a linear array is fixedly installed below the spray pipe (31), a first return pipe (33) is fixedly connected to the lower end of the cleaning tank (1), a worm gear flow sensor (34) is fixedly installed at one end of the first return pipe (33), a second return pipe (35) is fixedly connected to one end of the worm gear flow sensor (34), and a first solenoid valve (36) is fixedly installed on the outside of the second return pipe (35). A flushing and cleaning mechanism is provided on one side of the water storage tank (2).

2. The fruit and vegetable washing water circulation device according to claim 1, characterized in that: A liquid level sensor (37) is fixedly installed on one side of the inner wall of the water storage tank (2). A water supply pipe (38) is fixedly connected to the upper end of the water storage tank (2). A water pump (39) is fixedly installed at the upper end of the water storage tank (2). A first delivery pipe (310) is fixedly connected to the outlet end of the water pump (39). One end of the first delivery pipe (310) is fixedly connected to one end of the spray pipe (31).

3. The fruit and vegetable washing water circulation device according to claim 1, characterized in that: The flushing and cleaning mechanism includes a fixed frame (4), the outside of which is fixedly connected to one side of the water storage tank (2), and a filter housing (41) is fixedly sleeved on the inner wall of the fixed frame (4). The outside of the filter housing (41) is fixedly connected to one end of the second return pipe (35).

4. The fruit and vegetable washing water circulation device according to claim 3, characterized in that: The filter housing (41) is fixedly fitted with a filter screen (42) on its inner wall. The filter housing (41) is fixedly connected to a guide pipe (43) on its outer side. One end of the guide pipe (43) is fixedly connected to one side of the water storage tank (2). The lower end of the filter housing (41) is fixedly connected to a drain pipe (44).

5. A fruit and vegetable washing water circulation device according to claim 4, characterized in that: A second solenoid valve (45) is fixedly installed on the outside of the drain pipe (44). The upper end of the filter housing (41) is rotatably connected to a rotating sleeve (46) through a sealed bearing. The lower end of the rotating sleeve (46) extends through and to the bottom of the filter screen (42).

6. The fruit and vegetable washing water circulation device according to claim 5, characterized in that: The lower end of the rotating sleeve (46) is fixedly connected to a symmetrically distributed cleaning brush (47), the upper end of the rotating sleeve (46) is fixedly sleeved with a worm gear (48), the outside of the rotating sleeve (46) is fixedly connected to a symmetrically distributed diverter pipe (49), and the lower end of the diverter pipe (49) is fixedly connected to a high-pressure nozzle (410) arranged in a linear array.

7. A fruit and vegetable washing water circulation device according to claim 6, characterized in that: A servo motor (411) is fixedly installed at the upper end of the filter housing (41). A worm gear (412) is fixedly installed on the output shaft of the servo motor (411) through a coupling. The outer surface of the worm gear (412) meshes with the tooth surface of the worm wheel (48). A booster pump (413) is fixedly installed at the upper end of the water storage tank (2). The outlet end of the booster pump (413) is fixedly connected to a second delivery pipe (414). One end of the second delivery pipe (414) is rotatably connected to the inner wall of the upper end of the rotating sleeve (46) through a sealed bearing.

Images