Spraying device for fruit cleaning

Abstract

The spraying device comprises a shell, a plate body is arranged on the left side of the interior of the shell, four ends of the plate body are connected with the inner side wall of the shell, the right side of the shell and the right side of the plate body are each provided with three round holes distributed at equal intervals in the front-back direction, and the round holes in the left side and the right side are arranged in a one-to-one correspondence mode. The right side of the shell is provided with three semicircular cylinders corresponding to the three circular holes in the left portion respectively, a feeding mechanism is arranged among the three semicircular cylinders, four long-strip-shaped rods are arranged between every two corresponding circular holes, the four long-strip-shaped rods are distributed in a circle center polar axis array mode, and the two ends of each long-strip-shaped rod are connected with the shell and the plate body respectively. A water passing pipe located in the front is arranged between the two corresponding round holes, the two ends of the water passing pipe are connected with the shell and the plate body correspondingly, the feeding mechanism comprises a disc, a round rod, a connecting plate, a rectangular box and an air cylinder, and the spraying device for fruit cleaning has the advantages of efficient cleaning and high-effect spraying.

Description

Technical Field

[0001] The utility model relates to the technical field of fruit processing, in particular to a spray device for washing fruits. Background Art

[0002] Fruit refers to plant fruits that can be eaten directly. They usually have sweet, sour or other specific flavors and are rich in nutrients such as vitamins, minerals and cellulose. Common fruits include apples, bananas, oranges, strawberries, grapes, pears, etc. Fruits can not only be used as snacks, but also as desserts or ingredients after meals, which help to supplement the various nutrients needed by the human body.

[0003] After the fruits are picked, in order to remove dirt, soil and residual pesticides on the surface, spray equipment is often used for cleaning and spraying. The current fruit cleaning spray equipment is usually composed of a conveyor, a spray pipe and a nozzle. The working principle is to spray clean water on the fruits on the conveyor through the nozzle for cleaning. However, this method only relies on clean water for flushing, the cleaning method is single, and the clean water flushing effect is limited. The cleaning effect often requires a long time of spraying to meet the requirements. In addition, since some fruits in the conveyor do not completely correspond to the water spraying position, the cleaning effect is poor and time-consuming, and there is a problem of low cleaning efficiency.

[0004] For this reason, a spray device for fruit cleaning is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a spray device for washing fruits to solve the above problems.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A spray device for washing fruits comprises a shell, wherein a plate body whose four ends are connected to its inner side wall is arranged on the left side of the shell, three circular holes which are equally distributed along the front-back direction are opened on the right side of the shell and the plate body, and the circular holes on the left and right sides are arranged in a one-to-one correspondence, three semi-cylinders which are respectively corresponding to the three circular holes on the left are arranged on the right side of the shell, a feeding mechanism is arranged between the three semi-cylinders, four long bars which are distributed in an array with their center polar axes and whose two ends are respectively connected to the shell and the plate body are arranged between the two corresponding circular holes, and a rod which is located in the front and whose two ends are respectively connected to the shell and the plate body is arranged between the two corresponding circular holes. A water pipe is connected to the water pipe, the rear side of which is connected to a plurality of circular tubes which are evenly distributed laterally and are all sleeved on the four long bars in front, the inner wall of the circular tube is evenly provided with a plurality of nozzles, the water pipe is provided with a connecting tube which penetrates to the outside of the shell, four transmission shafts are provided between two corresponding circular holes and are respectively located between two adjacent long bars, the two ends of the transmission shaft are respectively connected to the shell and the plate body, a plurality of roller brushes are fixedly sleeved on the transmission shaft and are respectively located between two adjacent circular tubes, the outer end of the roller brush extends to the inner side of the circular tube, and the shell is provided with a driving mechanism for driving the transmission shaft to rotate.

[0008] Preferably, the feeding mechanism includes a circular disc, a round rod, a connecting plate, a rectangular box and a cylinder. A rectangular box is provided on the right side of the outer shell, and the left side of the rectangular box is connected to the right side of the three semi-cylinders. The three semi-cylinders are each provided with a circular disc inside. A connecting plate is provided inside the rectangular box. The right side of the three circular discs is provided with a round rod, the right end of which passes through the interior of the rectangular box and is connected to the left side of the connecting plate. The right side of the rectangular box is provided with a cylinder, which passes through the interior of the rectangular box and the telescopic shaft is connected to the right side of the connecting plate.

[0009] Preferably, the connecting pipe comprises a shunt pipe, a valve 1 and a vertical pipe. A shunt pipe is provided above the shell, a valve 1 is provided at one end of the shunt pipe, and a vertical pipe is connected between the shunt pipe and the water pipe.

[0010] Preferably, the driving mechanism includes a worm, a motor, a through cylinder, a worm wheel, an inner ring gear and a gear. The right ends of the four adjacent transmission shafts are fixedly sleeved with gears, and the four gears are transmission-connected with an inner ring gear. A through cylinder is fixedly sleeved on the inner ring gear. Both ends of the through cylinder are open and the right end is rotatably connected to the outer shell. A worm wheel is fixedly sleeved on the through cylinder. The front side of the outer shell is provided with a motor whose output shaft passes through the interior thereof. The output shaft of the motor is coaxially connected to a worm meshing with the worm wheel and the rear end of which is rotationally connected to the inner rear wall of the outer shell.

[0011] Preferably, the through tube is sleeved with a second circular ring connected to the right inner wall of the shell on the right side, the inner curved surface of the second circular ring is provided with a circular annular groove, and the through tube is fixedly sleeved with a first circular ring with the outer end extending into the inside of the circular annular groove.

[0012] Preferably, a collection box is placed on the inner bottom wall of the outer shell and is located on the left side of the plate body. A box access opening corresponding to the collection box is opened on the front of the outer shell. A filter screen with four ends connected to the outer shell and the plate body is horizontally arranged inside the outer shell. Valve 2 is provided at the lower right end of the front side of the outer shell.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the fruits in the semi-cylinder can be pushed between the four long bars through the feeding mechanism, and the fruits placed at the back can be pushed before the fruits placed at the front, and the fruits can be continuously pushed to the left, and the transmission shaft and the roller brush thereon are driven to rotate through the driving mechanism, and the fruits are continuously brushed by the roller brush during the movement, and the clean water in the water source will enter the connecting pipe and be transported to the water pipe, and then be diverted to multiple circular tubes by the water pipe, and sprayed from the nozzles on the circular tubes to the fruits limited by the four long bars, so that the fruits correspond to the water spraying position to improve the cleaning effect, and at the same time, the effect of spraying and brushing is achieved to shorten the time to meet the cleaning requirements, thereby improving the cleaning efficiency and further improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings further illustrate the present invention, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 The utility model is a three-dimensional structure cutaway view Figure 1 ;

[0017] Figure 3 This is a three-dimensional cutaway view of the local structure of the utility model. Figure 1 ;

[0018] Figure 4 This is a stereoscopic diagram of the drive mechanism and the connecting pipe of the utility model;

[0019] Figure 5 It is a stereoscopic diagram of the circular ring pipe and the connecting pipe of the utility model;

[0020] Figure 6 This is a three-dimensional cutaway view of the local structure of the utility model. Figure 2 ;

[0021] Figure 7 It is a three-dimensional sectional view of the feeding mechanism of the utility model.

[0022] In the accompanying drawings: 1. outer shell; 2. plate body; 3. round hole; 4. semi-cylinder; 5. feeding mechanism; 51. disc; 52. round rod; 53. connecting plate; 54. rectangular box; 55. cylinder; 6. long rod; 71. circular ring tube; 72. nozzle; 8. connecting pipe; 81. diverter pipe; 82. valve one; 83. vertical pipe; 801. water pipe; 9. transmission shaft; 10. roller brush; 11. driving mechanism; 111. worm; 112. motor; 113. through cylinder; 114. worm wheel; 115. inner ring gear; 116. gear; 121. circular ring one; 122. circular ring two; 13. collecting box; 14. filter screen; 15. valve two. DETAILED DESCRIPTION

[0023] The following describes the embodiments of the utility model in detail, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model. In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, and "several" means one or more, unless otherwise clearly and specifically defined.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0027] In this embodiment, Figure 1-7 A spray device for washing fruits is provided. The utility model comprises a shell 1. A plate body 2 whose four ends are connected to its inner side wall is provided on the left side of the inside of the shell 1. Three circular holes 3 are equidistantly distributed along the front-back direction on the right sides of the shell 1 and the plate body 2. The circular holes 3 on the left and right sides are arranged in a one-to-one correspondence. Three semi-cylinders 4 are provided on the right side of the shell 1, which are respectively corresponding to the three circular holes 3 on the left. A feeding mechanism 5 is provided between the three semi-cylinders 4. Four long bars 6 are distributed in an array with their center polar axes and are respectively connected to the shell 1 and the plate body 2 at both ends. A rod 6 is provided at the front and connected to the shell 1 and the plate body 2 at both ends between the two corresponding circular holes 3. A water pipe 801 is provided, and the rear side of the water pipe 801 is connected with a plurality of circular tubes 71 which are evenly distributed laterally and are all sleeved on the four long bars 6 in front. The inner wall of the circular tube 71 is evenly provided with a plurality of nozzles 72. The water pipe 801 is provided with a connecting tube 8 which passes through the outside of the outer shell 1. Four transmission shafts 9 are provided between the two corresponding circular holes 3 and are respectively located between two adjacent long bars 6. The two ends of the transmission shaft 9 are respectively connected to the outer shell 1 and the plate body 2. A plurality of roller brushes 10 are fixedly sleeved on the transmission shaft 9 and are respectively located between two adjacent circular tubes 71. The outer end of the roller brush 10 extends to the inner side of the circular tube 71. The outer shell 1 is provided with a driving mechanism 11 for driving the transmission shaft 9 to rotate.

[0028] In this embodiment, the connecting pipe 8 is connected to the water source. When the fruit is placed inside the semi-cylinder 4, the feeding mechanism 5 can push the fruit between the four long bars 6, and so on and so forth, and the fruit can be continuously pushed to the left. At the same time, the driving mechanism 11 drives the transmission shaft 9 and the roller brush 10 thereon to rotate. During the movement of the fruit, clean water will enter the connecting pipe 8 and be further transported to the water pipe 801, and then be diverted by the water pipe 801 to multiple circular tubes 71, and the clean water will be sprayed from the nozzles 72 on the circular tubes 71 to the fruit limited by the four long bars 6, so that the fruit corresponds to the water spraying position to improve the cleaning effect. At the same time, during the movement of the fruit, it is also continuously brushed by the rotating roller brush 10, and then cooperated with the sprayed clean water to achieve the effect of spraying and brushing, so as to shorten the time to meet the cleaning requirements, thereby improving the cleaning efficiency and further improving the cleaning effect.

[0029] Preferably, as another embodiment of the utility model, the feeding mechanism 5 includes a disc 51, a round rod 52, a connecting plate 53, a rectangular box 54 and a cylinder 55. A rectangular box 54 is provided on the right side of the outer shell 1, and the left side of the rectangular box 54 is connected to the right side of the three semi-cylinders 4. The three semi-cylinders 4 are each provided with a disc 51 inside, and the rectangular box 54 is provided with a connecting plate 53 inside. The right side of the three discs 51 is provided with a round rod 52 whose right end passes through the interior of the rectangular box 54 and is connected to the left side of the connecting plate 53. The right side of the rectangular box 54 is provided with a cylinder 55 that passes through the interior of the rectangular box 54 and the telescopic shaft is connected to the right side of the connecting plate 53.

[0030] In this embodiment, when fruit is placed in the semi-cylinder 4, the telescopic shaft of the driving cylinder 55 extends out, and the round rod 52 can be driven to move to the left through the connecting plate 53, and the disc 51 connected to the left end of the round rod 52 will move accordingly, and push the fruit in the semi-cylinder 4 from the right circular hole 3 into the outer shell 1 and place it between the four long bars 6. Among them, the rectangular box 54 can provide a fixed installation position for the cylinder 55, and at the same time, avoid accidental touching of moving parts, thereby playing a role of isolation and protection.

[0031] Preferably, as another embodiment of the utility model, the connecting pipe 8 includes a diverter pipe 81, a valve 82 and a vertical pipe 83. A diverter pipe 81 is provided above the outer shell 1, a valve 82 is provided at one end of the diverter pipe 81, and a vertical pipe 83 is connected between the diverter pipe 81 and the water pipe 801.

[0032] In this embodiment, the valve 82 can be connected to the pipeline, and the other end of the pipeline is connected to the water source to achieve the connection and transportation of the water source, and the valve 82 can control the amount of water for spraying. After the water source enters the diversion pipe 81, it will flow into the vertical pipe 83 and the water pipe 801 connected to the vertical pipe 83.

[0033] Preferably, as another embodiment of the utility model, the driving mechanism 11 includes a worm 111, a motor 112, a through cylinder 113, a worm wheel 114, an inner ring gear 115 and a gear 116. The right ends of the four adjacent transmission shafts 9 are fixedly sleeved with gears 116, and the four gears 116 are all transmission-connected with the inner ring gear 115. The inner ring gear 115 is fixedly sleeved with a through cylinder 113. Both ends of the through cylinder 113 are open and the right end thereof is rotationally connected to the housing 1. The through cylinder 113 A worm gear 114 is fixedly sleeved on the upper part of the housing 1, a motor 112 with an output shaft extending therethrough is provided on the front side of the housing 1, a worm 111 meshing with the worm gear 114 and having a rear end rotatably connected to the inner rear wall of the housing 1 is coaxially connected to the output shaft of the motor 112, a second ring 122 connected to the right inner wall of the housing 1 on the right side is sleeved on the through cylinder 113, a circular annular groove is formed on the inner curved surface of the second ring 122, and a circular ring 121 with an outer end extending to the inside of the circular annular groove is fixedly sleeved on the through cylinder 113.

[0034] In this embodiment, the motor 112 can output torque and drive the coaxially connected worm 111 to rotate. In this process, it will mesh with the worm wheel 114 on the cylinder 113 to generate transmission, thereby driving the cylinder 113 and the inner ring gear 115 thereon to rotate. When the inner ring gear 115 rotates, it will transmit to the gears 116 on the four transmission shafts 9 to drive the four transmission shafts 9 to rotate. When the cylinder 113 rotates, the circular ring 121 installed thereon will rotate in the circular groove on the circular ring 2 122. The combination of the two can make the cylinder 113 run smoothly, and at the same time, also support the cylinder 113.

[0035] Preferably, as another embodiment of the utility model, a collecting box 13 located on the left side of the plate body 2 is placed on the inner bottom wall of the outer shell 1, a box access opening corresponding to the collecting box 13 is opened on the front of the outer shell 1, a filter screen 14 with four ends connected to the outer shell 1 and the plate body 2 is horizontally arranged inside the outer shell 1, and a valve 2 15 is provided at the lower right end of the front of the outer shell 1.

[0036] In this embodiment, the upper end of the collecting box 13 is open. When the fruit is continuously pushed to the right, it will be discharged from the circular hole 3 on the plate body 2, that is, the circular hole 3 on the left, and the discharged fruit will fall into the collecting box 13 and be gathered together for centralized collection. A handle is installed on the front of the collecting box 13, and the handle can be pulled to take out the collecting box 13 from the box opening to pour out the fruit. Among them, the filter net 14 can filter the sewage falling after spraying the fruit to filter the sewage, and the filtered sewage can be discharged from the device through valve 2 15.

[0037] Working principle: connect valve 82 to the pipeline, and the other end of the pipeline is connected to the water source to complete the connection and transportation of the water source. When the fruit is placed inside the semi-cylinder 4, the cylinder 55 drives the connecting plate 53 and the round rod 52 to move to the left, and the disc 51 on the left end of the round rod 52 pushes the fruit from the right circular hole 3 into the shell 1 and is placed between the four long bars 6. This reciprocating process continuously pushes the fruit to the left. At the same time, the motor 112 drives the coaxially connected worm 111 to rotate, so that the worm 111 and the worm wheel 114 on the through cylinder 113 are driven and rotated, and the inner ring gear 115 installed on the through cylinder 113 rotates accordingly. In this process, the inner ring gear 115 is rotated. The ring gear 115 will transmit to the gear 116 on the four transmission shafts 9 to drive the four transmission shafts 9 to rotate, and the roller brush 10 installed on the transmission shaft 9 will rotate accordingly to brush the fruits between the four long bars 6. At the same time, clean water will enter through valve 1 82 and flow through the diversion pipe 81, the vertical pipe 83, and the water pipe 801 in sequence, and then be diverted by the water pipe 801 to multiple circular pipes 71, and the clean water will be sprayed from the nozzle 72 on the circular pipe 71 to the fruits limited by the four long bars 6 to accurately spray the clean water onto the surface of the water source. Finally, the fruit will be discharged from the circular hole 3 on the plate body 2 and fall into the collection box 13.

[0038] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment", "certain embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0039] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementations of the present invention without creative work, and these equivalent variations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A spray device for washing fruit, comprising a housing (1), characterized in that: A plate body (2) is provided on the left side of the interior of the shell (1) and the four ends of which are connected to the inner wall thereof. Three circular holes (3) are provided on the right sides of the shell (1) and the plate body (2) and are equidistantly distributed along the front-to-back direction. The circular holes (3) on the left and right sides are arranged in a one-to-one correspondence. Three semi-cylinders (4) are provided on the right side of the shell (1) and are respectively corresponding to the three circular holes (3) on the left. A feeding mechanism (5) is provided between the three semi-cylinders (4). Four long bars (6) are provided between the two corresponding circular holes (3) and are distributed in an array with their center polar axes and are respectively connected to the shell (1) and the plate body (2) at both ends. A water pipe (801) is provided between the two corresponding circular holes (3) and is located in the front and is respectively connected to the shell (1) and the plate body (2) at both ends. The rear side of the water pipe (801) is provided with a water pipe (801). A plurality of circular tubes (71) are connected and are evenly distributed in the transverse direction and are sleeved on the four long bars (6) in the front. The inner wall of the circular tube (71) is evenly provided with a plurality of nozzles (72). The water pipe (801) is provided with a connecting tube (8) that penetrates to the outside of the shell (1). Four transmission shafts (9) are provided between two corresponding circular holes (3) and are respectively located between two adjacent long bars (6). The two ends of the transmission shaft (9) are respectively connected to the shell (1) and the plate body (2). A plurality of roller brushes (10) are fixedly sleeved on the transmission shaft (9) and are respectively located between two adjacent circular tubes (71). The outer ends of the roller brushes (10) extend to the inner side of the circular tube (71). The shell (1) is provided with a driving mechanism (11) for driving the transmission shaft (9) to rotate.

2. A spray device for washing fruits according to claim 1, characterized in that: The feeding mechanism (5) comprises a disc (51), a round rod (52), a connecting plate (53), a rectangular box (54) and a cylinder (55). A rectangular box (54) is provided on the right side of the housing (1), the left side of which is connected to the right sides of the three semi-cylinders (4). The insides of the three semi-cylinders (4) are provided with discs (51). The insides of the rectangular box (54) are provided with connecting plates (53). The right sides of the three discs (51) are provided with round rods (52) whose right ends penetrate into the inside of the rectangular box (54) and are connected to the left side of the connecting plate (53). The right side of the rectangular box (54) is provided with a cylinder (55) which penetrates into the inside of the rectangular box and whose telescopic shaft is connected to the right side of the connecting plate (53).

3. The spray device for washing fruits according to claim 1, characterized in that: The connecting pipe (8) comprises a diverter pipe (81), a valve one (82) and a vertical pipe (83); a diverter pipe (81) is provided above the housing (1); a valve one (82) is provided at one end of the diverter pipe (81); and a vertical pipe (83) is connected between the diverter pipe (81) and the water pipe (801).

4. The spray device for washing fruits according to claim 1, characterized in that: The driving mechanism (11) comprises a worm (111), a motor (112), a through cylinder (113), a worm wheel (114), an inner ring gear (115) and a gear (116); the right ends of four adjacent transmission shafts (9) are all fixedly sleeved with a gear (116); the four gears (116) are all transmission-connected with an inner ring gear (115); a through cylinder (113) is fixedly sleeved on the inner ring gear (115); both ends of the through cylinder (113) are open and the right end thereof is rotationally connected to the housing (1); a worm wheel (114) is fixedly sleeved on the through cylinder (113); a motor (112) having an output shaft extending therethrough is provided on the front surface of the housing (1); the output shaft of the motor (112) is coaxially connected with a worm (111) meshing with the worm wheel (114) and the rear end of the worm is rotationally connected to the inner rear wall of the housing (1).

5. The spray device for washing fruits according to claim 4, characterized in that: The through cylinder (113) is sleeved with a second circular ring (122) connected to the right inner wall of the outer shell (1) on the right side, and an annular groove is formed on the inner curved surface of the second circular ring (122). The through cylinder (113) is fixedly sleeved with a first circular ring (121) whose outer end extends into the interior of the annular groove.

6. The spray device for washing fruits according to claim 1, characterized in that: A collecting box (13) is placed on the inner bottom wall of the outer shell (1) and is located on the left side of the plate body (2). A box access opening corresponding to the collecting box (13) is provided on the front side of the outer shell (1). A filter screen (14) having four ends connected to the outer shell (1) and the plate body (2) is horizontally provided inside the outer shell (1). A second valve (15) is provided at the lower right end of the front side of the outer shell (1).

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