Anti-blocking sprayer

Abstract

The utility model relates to the field of sprayers, and discloses an anti-blocking sprayer which comprises a pesticide box, a spraying rod, a spraying head, a pumping unit and a filtering unit, a liquid cavity is formed in the pesticide box, the filtering unit divides the liquid cavity into a liquid inlet cavity and a liquid outlet cavity, pesticide liquid flows into the liquid outlet cavity from the liquid inlet cavity, and the filtering unit comprises a filtering plate, a filling unit and a collecting box. The distribution direction of the filter plate and the filling unit is parallel to the sliding direction of the collecting box, a collecting cavity and a liquid inlet channel are formed in the collecting box, the collecting cavity is located on the side, close to the liquid inlet cavity, of the filter plate, and the liquid inlet channel is located on the side, close to the liquid outlet cavity, of the filter plate. When impurities cover the filter plate, the filter plate enters the collecting box, the liquid medicine in the liquid outlet cavity enters the collecting cavity, the impurities on the filter plate are flushed away from the filter plate and suspend in the collecting cavity, the impurities on the filter plate are flushed away reversely by means of the liquid medicine by moving the collecting box, the filter plate is prevented from being blocked, shutdown operation is not needed in the process, and operation is convenient. And the operation efficiency can be improved.

Description

Technical fields:

[0001] This utility model belongs to the technical field of sprayers, and specifically refers to an anti-clogging sprayer. Background technology:

[0002] In fields such as agricultural plant protection, industrial cleaning, and sanitation and epidemic prevention, sprayers are key equipment for achieving liquid atomization operations. Traditional sprayers have single or multiple layers of filters inside, which are generally used to intercept particulate impurities in the liquid to reduce the risk of nozzle clogging.

[0003] However, in high-impurity environments such as orchard weeding and industrial wastewater spraying, the filter plates are easily covered by impurities, leading to clogging. This causes the liquid to pass through the filter plates at a slower speed or even fail to pass through at all, requiring operators to stop work to clean the filter plates. Each cleaning requires stopping the machine and disassembling the filter screen, which increases the operation time and affects the efficiency of the operation. This needs to be improved. Summary of the Invention:

[0004] The purpose of this invention is to provide an anti-clogging sprayer to solve the technical problems mentioned in the background section.

[0005] This utility model is implemented as follows:

[0006] An anti-clogging sprayer includes a medicine tank, a spray bar, a nozzle, a pumping unit, and a filtering unit. The liquid medicine is filtered by the filtering unit and then enters the pumping unit, which delivers the liquid medicine from the tank to the spray bar. The medicine tank has a liquid cavity, which is divided into an inlet cavity and an outlet cavity by the filtering unit. The liquid medicine flows from the inlet cavity into the outlet cavity. The filtering unit includes a filter plate inside the medicine tank, a filling unit inside the medicine tank, and a collection box slidably connected to the medicine tank. The filter plate and the filling unit... The distribution direction is parallel to the sliding direction of the collection box. The collection box has a collection cavity and a liquid inlet channel. When the collection box moves to the filling unit, the filling unit fills the collection cavity and the liquid inlet channel. When the collection box moves to the filter plate, the collection cavity is located on the side of the filter plate closer to the liquid inlet cavity, and the liquid inlet channel is located on the side of the filter plate closer to the liquid outlet cavity. The medicine box is provided with a driving component to drive the collection box to move.

[0007] By adopting the above technical solution, during operation, the pumping unit works, and the liquid medicine in the inlet chamber enters the outlet chamber after being filtered by the filter plate. Impurities are located on the side of the filter plate closer to the inlet chamber. When impurities cover the filter plate, the drive unit drives the collection box to move closer to the filter plate, so that the filter plate enters the collection box. The liquid medicine in the outlet chamber flows into the inlet channel from the gap between the inlet channel and the filling unit, flows along the inlet channel past the filter plate, and enters the collection chamber. During the process of the liquid medicine entering the collection chamber, the liquid medicine washes away the impurities covering the filter plate, making the impurities suspended in the collection chamber. The drive unit drives the collection box to move closer to the filling unit, so that the filling unit refills the collection chamber and the inlet channel. By moving the collection box, the liquid medicine is used to backwash away the impurities on the filter plate, preventing the filter plate from clogging. Moreover, this process does not require machine shutdown, which helps to improve operating efficiency.

[0008] Preferably, the filter plate and the filling unit are vertically distributed, with the filter plate located below the filling unit.

[0009] By adopting the above technical solution, the filter plate is placed below the filling unit, so that the filter plate can perform the filtering function even when the liquid level is low.

[0010] Preferably, the collection box has a sliding opening for inserting the filter plate, and the sliding opening is fitted to the surface of the filter plate.

[0011] By adopting the above technical solution, the sliding port is attached to the surface of the filter plate. When the driving component moves the collection box to the filter plate, it can scrape off the part of the filter plate surface covered with impurities. This helps to reduce impurities in the collection chamber and reduce the risk of the medicine liquid leaving the collection box through the filter holes of the filter plate due to excessive impurities in the collection chamber, which would cause impurities to re-block the filter holes.

[0012] Preferably, the driving component includes a drive motor disposed in the medicine box and a reciprocating lead screw rotatably connected inside the medicine box, wherein the lead screw pair of the reciprocating lead screw is fixed to the collection box.

[0013] By adopting the above technical solution, the collection box is moved by a drive motor and a reciprocating screw, which facilitates the stirring of the medicine liquid during the movement of the collection box and helps impurities to detach from the filter plate.

[0014] Preferably, the medicine box has an installation cavity, and the pumping unit and the drive motor are both located in the installation cavity.

[0015] By adopting the above technical solution, the drive motor and the pumping unit are installed together in the mounting cavity, which facilitates the simultaneous maintenance of the drive motor and the pumping unit when repairing the sprayer.

[0016] Preferably, the reciprocating lead screw extends into the liquid outlet chamber, and a water-absorbing expansion sealing ring is provided between the reciprocating lead screw and the medicine tank.

[0017] By adopting the above technical solution, the liquid in the outlet chamber has fewer impurities after being filtered by the filter plate, which helps to reduce the accumulation of impurities on the surface of the reciprocating screw.

[0018] Preferably, the reciprocating lead screw is formed of 316L stainless steel.

[0019] By adopting the above technical solution, 316L stainless steel has excellent corrosion resistance, which is beneficial to improving the service life of the lead screw in the liquid medicine.

[0020] Preferably, the medicine box has an opening that communicates with the collection chamber. The filling unit is inserted into the collection chamber through the opening. The inner wall of the opening is provided with a sealing strip that abuts against the filling unit.

[0021] By adopting the above technical solution, the gap between the filling unit and the inner wall of the clearance opening is sealed by the sealing ring, so that when the collection box is separated from the filling unit, the medicine enters the collection box through the liquid inlet channel.

[0022] The outstanding advantages of this utility model compared to the prior art are:

[0023] 1. In this invention, when impurities cover the filter plate, the collection box moves, allowing the filter plate to enter the collection box. The liquid medicine in the outlet chamber enters the collection chamber. During this process, the liquid medicine washes away the impurities covering the filter plate, suspending them in the collection chamber. The collection box then moves closer to the filling unit, allowing the filling unit to refill the collection chamber and the inlet channel. By moving the collection box, the liquid medicine effectively flushes away impurities from the filter plate, preventing clogging. This process requires no machine downtime, thus improving operational efficiency.

[0024] 2. This utility model places the filter plate below the filling unit, so that the filter plate can perform the filtering function even when the liquid level is low;

[0025] 3. This utility model uses a sliding port to fit the surface of the filter plate. When the driving component moves the collection box to the filter plate, it can scrape off the part of the filter plate surface covered with impurities. This helps to reduce impurities in the collection chamber and reduces the risk of the medicine liquid leaving the collection box through the filter holes of the filter plate due to excessive impurities in the collection chamber, which would cause impurities to re-block the filter holes. Attached image description:

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2This is a cross-sectional view of the medicine box of this utility model, mainly showing the internal structure of the medicine box;

[0028] Figure 3 This is a partial structural diagram of the present invention, mainly showing the positional relationship between the filter plate and the collection box after the filter plate is inserted into the collection box, and the flow direction of the medicine inside the collection box.

[0029] Instruction manual drawing reference numerals: 1. Medicine box; 11. Liquid chamber; 111. Liquid inlet chamber; 112. Liquid outlet chamber; 12. Mounting chamber; 13. Liquid inlet; 14. Liquid outlet; 2. Spray bar; 3. Spray head; 4. Pumping unit; 5. Filtering unit; 51. Filling unit; 52. Filter plate; 53. Collection box; 531. Sliding port; 532. Collection chamber; 533. Liquid inlet channel; 534. Clearance port; 535. Sealing strip; 6. Driving component; 61. Drive motor; 62. Reciprocating screw; 621. Sealing ring; 7. Control switch. Detailed implementation method:

[0030] The present invention will be further described below with reference to specific embodiments:

[0031] This application discloses an anti-clogging sprayer, see [link]. Figure 1 and Figure 2 The system includes a medicine tank 1, a spray bar 2, a nozzle 3, a pumping unit 4, and a filter unit 5. The medicine tank 1 has a liquid chamber 11 and a mounting cavity 12. The liquid chamber 11 is located above the mounting cavity 12, the pumping unit 4 is located inside the mounting cavity 12, and the filter unit 5 is located inside the liquid chamber 11. The filter unit 5 divides the liquid chamber 11 into an inlet chamber 111 and an outlet chamber 112, which are horizontally distributed. The medicine tank 1 has an inlet port 13 and an outlet port 14. The inlet port 13 is located above and communicates with the inlet chamber 111, and the outlet port 14 connects the outlet chamber 112 and the mounting cavity 12. The outlet port 14 is used to connect to the pumping unit 4, which transports the liquid medicine from the outlet chamber 112 to the spray bar 2 through the outlet port 14, causing the liquid medicine to be sprayed out from the nozzle 3.

[0032] See Figure 2 and Figure 3The filtration unit 5 includes a filling unit 51, a filter plate 52, and a collection box 53. The filling unit 51 and the filter plate 52 are vertically distributed and fixedly connected. The filter plate 52 is located below the filling unit 51. Both the filling unit 51 and the filter plate 52 are fixedly connected to the medicine box 1. Together, the filling unit 51 and the filter plate 52 divide the liquid chamber 11 into an inlet chamber 111 and an outlet chamber 112. The medicine in the inlet chamber 111 is filtered by the filter plate 52 and then enters the outlet chamber 112. The collection box 53 is slidably connected to the medicine box 1. The sliding direction of the collection box 53 is parallel to the distribution direction of the filling unit 51 and the filter plate 52. The collection box 53 is slidably connected to the liquid chamber 11 and is used to collect impurities attached to the holes of the filter plate 52.

[0033] Figure 3 The straight line with an arrow indicates the direction of the liquid flow in the collection box 53 when the filter plate is inserted into the collection box 53.

[0034] See Figure 2 and Figure 3 The collection box 53 has a sliding port 531 that extends vertically through the collection box 53. As the collection box 53 moves and the filter plate 52 is inserted into the sliding port 531, the collection box 53 scrapes the impurities attached to the surface of the filter plate 52 off the filter plate 52.

[0035] See Figure 2 and Figure 3 The collection tank 53 has a collection chamber 532 and an inlet channel 533. The two ends of the inlet channel 533 are connected to the inlet chamber 111 and the collection chamber 532, respectively. When the filter plate 52 is engaged with the sliding port 531, the two ports of the inlet channel 533 are located on both sides of the filter plate 52. The medicine in the inlet chamber 111 enters the collection tank 53 through the inlet channel 533. As the medicine flows through the inlet channel 533, it flows from the side of the filter plate 52 closest to the inlet chamber 111 into the side of the filter plate 52 closest to the outlet chamber 112, then through the filter plate 52 and into the collection chamber 532. The filter plate 52 filters the medicine entering from the inlet channel 533, which helps reduce impurities on the side of the filter plate 52 closest to the outlet chamber 112.

[0036] See Figure 2 and Figure 3The collection box 53 has an opening 534 at one end near the filling unit 51. The opening 534 connects the collection chamber 532 and the liquid inlet channel 533. The vertical projection of the collection chamber 532 and the liquid inlet channel 533 overlaps with the opening 534. The filling unit 51 is inserted into the collection chamber 532 and the liquid inlet channel 533 through the opening 534. After the filling unit 51 is completely inserted into the collection chamber 532 and the liquid inlet channel 533, the filling unit 51 fills the collection chamber 532 and the liquid inlet channel 533, and discharges the liquid in both. During the process of the filter plate 52 being inserted into the sliding port 531, the liquid in the collection box 53 remains flowing.

[0037] A sealing strip 535 is installed on the inner wall of the clearance opening 534, and the sealing strip 535 abuts against the filling unit 51. The sealing strip 535 is used to seal the gap between the filling unit 51 and the collection box 53.

[0038] As the liquid medicine passes through the filter plate 52 and enters the collection chamber 532, it flushes out impurities stuck in the holes of the filter plate 52. The flushed-out impurities float in the collection chamber 532. The reverse liquid flow washes the impurities off the filter plate 52, preventing the filter plate 52 from becoming clogged.

[0039] See Figure 2 A drive unit 6 is installed on the medicine box 1, which is used to drive the collection box 53 to rise and fall. The drive unit 6 includes a drive motor 61 and a reciprocating lead screw 62. The drive motor 61 is located in the mounting cavity 12, and the reciprocating lead screw 62 extends into the liquid outlet cavity 112. The output shaft of the drive motor 61 is coaxially connected to the reciprocating lead screw 62, and the drive motor 61 drives the reciprocating lead screw 62 to rotate. The bolts of the reciprocating lead screw 62 are fixed to the collection box 53. The drive motor 61 drives the reciprocating lead screw 62 to rotate, which drives the collection box 53 to rise and fall through the lead screw pair.

[0040] The reciprocating lead screw is made of 316L stainless steel.

[0041] The medicine box 1 is equipped with a control switch 7 for controlling the drive motor 61.

[0042] See Figure 2 A sealing ring 621 is installed between the reciprocating lead screw 62 and the medicine tank 1. The sealing ring 621 is located below the screw groove of the reciprocating lead screw 62. The sealing ring 621 is used to block the gap between the reciprocating lead screw 62 and the medicine tank 1 to prevent the medicine from flowing into the mounting cavity 12 through the gap between the two.

[0043] The implementation principle of this application embodiment is as follows: During the spraying operation, if the liquid output speed slows down due to the accumulation of impurities on the filter plate 52, the operator presses the control switch 7 to start the drive motor 61. The drive motor 61 drives the reciprocating screw 62 to rotate, causing the collection box 53 to move downwards, so that the filter plate 52 is stuck in the collection box 53. During this process, the liquid flowing into the collection chamber 532 flushes out the impurities stuck in the filter plate 52. This prevents impurities from completely clogging the filter holes of the filter plate 52. During the movement of the collection chamber 532, the liquid in the liquid outlet chamber 112 flows out normally for spraying, which helps to reduce the impact of cleaning the filter plate 52 on the operation efficiency.

[0044] The above embodiments are only one of the preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes made in accordance with the shape, structure and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. An anti-clogging sprayer, comprising a medicine tank (1), a spray bar (2), a nozzle (3), a pumping unit (4), and a filtering unit (5), wherein the medicine solution is filtered through the filtering unit (5) and then enters the pumping unit (4), the pumping unit (4) being used to transport the medicine solution in the medicine tank (1) to the spray bar (2), wherein the medicine tank (1) is provided with a liquid chamber (11), characterized in that: The filtration unit (5) divides the liquid chamber (11) into an inlet chamber (111) and an outlet chamber (112). The medicine flows from the inlet chamber (111) into the outlet chamber (112). The filtration unit (5) includes a filter plate (52) disposed in the medicine tank (1), a filling unit (51) disposed in the medicine tank (1), and a collection box (53) slidably connected to the medicine tank (1). The distribution direction of the filter plate (52) and the filling unit (51) is parallel to the sliding direction of the collection box (53). The collection box (53) has a collection cavity (532). When the collection box (53) moves to the filling unit (51), the filling unit (51) fills the collection cavity (532) and the inlet channel (533); when the collection box (53) moves to the filter plate (52), the collection cavity (532) is located on the side of the filter plate (52) close to the inlet cavity (111), and the inlet channel (533) is located on the side of the filter plate (52) close to the outlet cavity (112). The medicine box (1) is provided with a driving member (6) for driving the collection box (53) to move.

2. The anti-clogging sprayer according to claim 1, characterized in that: The filter plate (52) and the filling unit (51) are vertically distributed, with the filter plate (52) located below the filling unit (51).

3. The anti-clogging sprayer according to claim 2, characterized in that: The collection box (53) has a sliding opening (531) for the filter plate (52) to be inserted into, and the sliding opening (531) is in contact with the surface of the filter plate (52).

4. The anti-clogging sprayer according to claim 1, characterized in that: The driving component (6) includes a driving motor (61) disposed in the medicine box (1) and a reciprocating lead screw (62) rotatably connected in the medicine box (1), wherein the lead screw pair of the reciprocating lead screw (62) is fixed to the collection box (53).

5. An anti-clogging sprayer according to claim 4, characterized in that: The medicine box (1) has an installation cavity (12), and the pumping unit (4) and the drive motor (61) are both located in the installation cavity (12).

6. An anti-clogging sprayer according to claim 5, characterized in that: The reciprocating lead screw (62) extends into the liquid inlet chamber (111), and a sealing ring (621) is provided between the reciprocating lead screw (62) and the medicine box (1).

7. An anti-clogging sprayer according to claim 6, characterized in that: The reciprocating lead screw (62) is formed from 316L stainless steel.

8. An anti-clogging sprayer according to claim 3, characterized in that: The medicine box (1) is provided with an opening (534), which is connected to the collection chamber (532). The filling unit (51) is inserted into the collection chamber (532) through the opening (534). The inner wall of the opening (534) is provided with a sealing strip (535), which abuts against the filling unit (51).

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