Extraction device for pigment of aronia melanocarpa

By introducing primary and secondary filtration components into the black fruit rowan pigment extraction device, the peel in the liquid is removed by using a filter plate and a cylindrical filter mesh, the problem of the peel affecting quality after stirring is solved, and a purer extraction effect is achieved.

CN222151116UActive Publication Date: 2024-12-13SHUNFU TECH (GUAN CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202420852832.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-23
Publication Date
2024-12-13
Estimated Expiration
2034-04-23

AI Technical Summary

Technical Problem

After stirring and crushing, the existing black fruit rowan pigment extraction device will be mixed with fine peels in the liquid, affecting product quality.

Method used

A device including a primary filter assembly and a secondary filter assembly is designed. The crushed black rowan liquid is carried out by using three sets of sliding grooves installed in the filter plate and a cylindrical filter mesh. Filter to further remove the fine peels and improve product purity.

Benefits of technology

It effectively improves the purity of the extracted black juice, improves product quality, and ensures the quality when extracting pigments.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222151116U_ABST
    Figure CN222151116U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of aronia melanocarpa pigment extraction devices, and discloses an aronia melanocarpa pigment extraction device which comprises a bottom plate, a smashing device and an extraction device, a right side flange of a first connecting pipe is connected with a manual ball valve, and a primary filtering assembly is fixedly installed at the top of the bottom plate; a secondary filtering assembly is fixedly installed on the right side of the top of the bottom plate, and a conveying pump is fixedly installed on the right side of the top of the bottom plate and located on the front side of the extraction device. According to the black chokeberry crushing device, through mutual cooperation of the conveying pump, the first connecting pipe and the second connecting pipe, crushed black chokeberries in the crushing device are extracted into the primary filtering assembly and the secondary filtering assembly, the primary filtering assembly is used for filtering crushed peels, and the crushed peels pass through the secondary filtering assembly again; and fine fruit peels are further filtered, so that the filtered black fruit juice liquid is purer, and the quality of a product extracted by the extraction device is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of Sorbus rufipogon pigment extraction devices, in particular to a Sorbus rufipogon pigment extraction device. Background Art

[0002] Sorbus nigra, also known as Sorbus nigra and immortal berry, is a perennial deciduous shrub of the Rosaceae family and the genus Sorbus. The fruit of Sorbus nigra and its extracts have special therapeutic effects on cardiovascular and cerebrovascular diseases such as heart disease and hypertension. They also contain a variety of sugars, fats, volatile oils, vitamin A, vitamin B1, vitamin B2, calcium, iron and other substances necessary for the human body, and are widely used in the pharmaceutical and functional food industries.

[0003] After searching, the existing Chinese patent announcement number: CN209865937U discloses an extraction device for extracting anthocyanin from Aronia nigra, including a base, a fixed box fixedly connected to the left side of the top of the base, a stirring box fixedly connected to the top of the fixed box, a first motor sleeved in the fixed box, and a rotating rod fixedly connected to the output end of the first motor. The problem of incomplete extraction of Aronia nigra by the extraction device for extracting anthocyanin from Aronia nigra is solved. The utility model uses the aggregate sleeve, the shaft rod, the rolling shaft, the motor box, the transmission sleeve, the second motor, the driving wheel, the driven wheel, the conveyor belt and the gears in coordination with each other, and the two rolling shafts can roll the Aronia nigra, and the rolled Aronia nigra can squeeze out the juice inside, which can increase the utilization rate of Aronia nigra, and maximize the extrusion of the beneficial components inside, thereby increasing the amount of anthocyanin extracted from Aronia nigra.

[0004] Although an existing extraction device further mixes and crushes the black fruit mountain ash by a rolling shaft and a stirring blade, the black fruit mountain ash liquid after mixing and crushing will be mixed with tiny peels, which will greatly affect the product quality when the pigment is extracted. Therefore, the technical personnel in this field now proposes a black fruit mountain ash pigment extraction device to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a device for extracting pigment from Sorbus nigra, aiming to improve the problem in the prior art that the Sorbus nigra liquid after stirring and crushing will be mixed with tiny peels, which will greatly affect the product quality when extracting the pigment.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a black fruit mountain ash pigment extraction device, including a base plate, a crushing device and an extraction device, the crushing device is fixedly installed on the left side of the top of the base plate, the bottom flange on the right side of the crushing device is connected to a connecting pipe 1, the right flange of the connecting pipe 1 is connected to a manual ball valve, the right flange of the manual ball valve is connected to a connecting pipe 2, a primary filter component is fixedly installed on the top of the base plate, a secondary filter component is fixedly installed on the right side of the top of the base plate, a delivery pump is fixedly installed on the right side of the top of the base plate, the extraction device is fixedly installed on one side of the top of the base plate, the delivery pump is located on the front side of the extraction device, and the delivery pump is connected to the extraction device.

[0007] As a further description of the above technical solution:

[0008] The primary filter assembly includes a box body, which is connected to the connecting pipe 2, three groups of slide grooves are opened inside the box body, and three groups of filter plates are slidably connected inside the three groups of slide grooves. A cover plate is arranged on the top of the box body, and U-shaped rods are welded on both sides of the top of the cover plate. Two groups of through holes are opened on both sides of the U-shaped rods, and two groups of bolts are arranged on both sides of the U-shaped rods. Two groups of threaded holes are opened on the top of both sides of the box body, and ground adjustment bolts are fixedly installed on the bottom of both sides of the box body. The bottom flange of the right side of the box body is connected to the connecting pipe 3.

[0009] As a further description of the above technical solution:

[0010] The secondary filtration assembly includes a filter barrel, which is fixedly installed on the top right side of the bottom plate, a sealing ring is fixedly installed on the front side of the filter barrel, a sealing plate is provided on the front side of the filter barrel, a motor is fixedly installed on the rear side of the filter barrel, a rotating shaft is fixedly installed on the output end of the motor, the rotating shaft passes through the rear side of the filter barrel, two groups of stirring blades are welded on the surface of the rotating shaft, an annular alignment plate is welded on the rear side of the inside of the filter barrel, a cylindrical filter screen is provided inside the filter barrel, an annular alignment groove is opened on the rear side of the sealing plate, and an electric water valve is connected to the flange on the right side of the filter barrel.

[0011] As a further description of the above technical solution:

[0012] A sealing groove is provided on the top of the box body, a silicone sealing ring is fixedly installed inside the sealing groove, the bottom of the cover plate is in contact with the silicone sealing ring, the two groups of bolts penetrate the two groups of through holes and are threadedly connected with the two groups of threaded holes, and the three groups of filter plates have the same mesh number.

[0013] As a further description of the above technical solution:

[0014] The sealing plate is connected to the filter barrel through a flange, the sealing ring is in contact with one side of the sealing plate, a handle is welded on the front side of the sealing plate, the filter barrel is three-way connected to the connecting pipe, and the electric water valve is connected to the delivery pump through a flange.

[0015] As a further description of the above technical solution:

[0016] One end of the cylindrical filter screen is inserted into the annular alignment groove, and the other end of the cylindrical filter screen is sleeved on the surface of the annular alignment plate. The mesh number of the cylindrical filter screen is greater than the mesh number of the three groups of filter plates.

[0017] As a further description of the above technical solution:

[0018] The connecting pipe 2 is connected to the inside of the box body, a water pressure sensor 1 is fixedly installed on the top of the connecting pipe 2, the connecting pipe 3 is connected to the inside of the box body, and the anchor adjustment bolt is fixedly connected to the right side of the top of the bottom plate.

[0019] As a further description of the above technical solution:

[0020] A water pressure sensor 2 is fixedly installed on the top of the connecting pipe 3, the water pressure sensor 1 is located on the left side of the box body, and the water pressure sensor 2 is located on the right side of the box body.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the delivery pump cooperates with the connecting pipe 1 and the connecting pipe 2 to extract the crushed black fruit ash inside the crushing device into the first filtering component and the second filtering component. The first filtering component is used to filter the crushed peel, and the fine peel is further filtered through the secondary filtering component, so that the filtered black fruit juice liquid is purer, thereby improving the quality of the product extracted by the extraction device.

[0023] 2. In the utility model, three groups of slide grooves are used to install three groups of filter plates, which are convenient for installation and replacement. The three groups of filter plates can filter the crushed peels to improve the purity of the black flower fruit juice after stirring. The U-shaped rod is used to strengthen the strength of the cover plate, and the cover plate can be installed on the top of the box body through the cooperation of two groups of bolts and two groups of threaded holes. The threaded connection is convenient for installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional schematic diagram of a device for extracting pigment from Sorbus nigra proposed by the utility model;

[0025] Figure 2 This is a schematic diagram of a three-dimensional explosion of the structure of a primary filtering component of a device for extracting pigment from Sorbus nigra proposed by the utility model;

[0026] Figure 3 This is a three-dimensional exploded structural diagram of a secondary filtering component of a device for extracting pigment from Sorbus nigra proposed by the utility model;

[0027] Figure 4 This is a schematic structural diagram of a three-dimensional cross-section of a sealing plate of a device for extracting pigment from Sorbus nigra proposed in the utility model;

[0028] Figure 5 The utility model is a schematic diagram of a three-dimensional explosion of the structure of a primary filtering component of a device for extracting pigment from Sorbus nigra.

[0029] Legend:

[0030] 1. Bottom plate; 2. Crushing device; 3. Extraction device; 4. Connecting pipe one; 5. Manual ball valve; 6. Connecting pipe two; 7. Box body; 8. Slide; 9. Filter plate; 10. Cover plate; 11. U-shaped rod; 12. Through hole; 13. Bolt; 14. Threaded hole; 15. Anchor bolt; 16. Connecting pipe three; 17. Filter barrel; 18. Sealing ring; 19. Sealing plate; 20. Motor; 21. Rotating shaft; 22. Stirring blade; 23. Annular alignment plate; 24. Cylindrical filter; 25. Annular alignment groove; 26. Electric water valve; 27. Delivery pump; 28. Sealing groove; 29. ​​Silicone sealing ring; 30. Handle; 31. Water pressure sensor one; 32. Water pressure sensor two. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-3, The utility model provides an embodiment: a black fruit arbutus pigment extraction device, including a bottom plate 1, a crushing device 2 and an extraction device 3, the crushing device 2 is fixedly installed on the top left side of the bottom plate 1, the bottom flange on the right side of the crushing device 2 is connected with a connecting pipe 1 4, the right flange of the connecting pipe 1 4 is connected with a manual ball valve 5, the right flange of the manual ball valve 5 is connected with a connecting pipe 2 6, a primary filtering component is fixedly installed on the top of the bottom plate 1, the primary filtering component includes a box body 7, one side of the box body 7 is connected to the connecting pipe 2 6, three groups of slide grooves 8 are opened inside the box body 7, three groups of filter plates 9 are slidably connected inside the three groups of slide grooves 8, a cover plate 10 is arranged on the top of the box body 7, U-shaped rods 11 are welded on both sides of the top of the cover plate 10, two groups of through holes 12 are opened on both sides of the U-shaped rod 11, two groups of bolts 13 are arranged on both sides of the U-shaped rod 11, two groups of threaded holes 14 are opened on the top of both sides of the box body 7, and the bottom of both sides of the box body 7 are fixedly installed with anchor adjustment bolts 15, the box body A connecting pipe 3 16 is connected to the bottom flange on the right side of 7, a secondary filter assembly is fixedly installed on the right side of the top of the bottom plate 1, and the secondary filter assembly includes a filter barrel 17, which is fixedly installed on the right side of the top of the bottom plate 1, a sealing ring 18 is fixedly installed on the front side of the filter barrel 17, a sealing plate 19 is arranged on the front side of the filter barrel 17, a motor 20 is fixedly installed on the rear side of the filter barrel 17, a rotating shaft 21 is fixedly installed on the output end of the motor 20, the rotating shaft 21 passes through the rear side of the filter barrel 17, two groups of stirring blades 22 are welded on the surface of the rotating shaft 21, an annular alignment plate 23 is welded on the rear side of the inside of the filter barrel 17, a cylindrical filter screen 24 is arranged inside the filter barrel 17, an annular alignment groove 25 is opened on the rear side of the sealing plate 19, an electric water valve 26 is connected to the flange on the right side of the filter barrel 17, a delivery pump 27 is fixedly installed on the right side of the top of the bottom plate 1, and the extraction device 3 is fixedly installed on one side of the top of the bottom plate 1, the delivery pump 27 is located on the front side of the extraction device 3, and the delivery pump 27 is connected to the extraction device 3.

[0033] Specifically, the connecting pipe 1 4 is used to convey the liquid of the black fruit ash after being stirred by the crushing device 2. The manual ball valve 5 can be opened and closed manually to intercept the path of the stirred liquid entering the box body 7. When the three sets of filter plates 9 are replaced inside the box body 7, the stirred liquid is prevented from entering the box body 7. The three sets of slide grooves 8 are used to install the three sets of filter plates 9, so that they are easy to install and disassemble through sliding connection. The foot adjustment bolts 15 can adjust the overall height of the box body 7, so as to facilitate the docking of the box body 7 with the connecting pipe 2 6 and the connecting pipe 3 16. The motor 2 0 is used to drive the rotating shaft 21 and the two sets of stirring blades 22 to rotate quickly inside the filter barrel 17. The rotation of the two sets of stirring blades 22 is used to sprinkle the stirred black fruit ash liquid on the surface of the cylindrical filter screen 24. The cylindrical filter screen 24 is used to filter the fine peels flowing out after filtering inside the box 7. The electric water valve 26 is used to detect the pressure of the liquid flowing out of the filter barrel 17. When the liquid pressure is small, the valve can be automatically closed to facilitate the user to replace the cylindrical filter screen 24. The delivery pump 27 is used to deliver the filtered liquid to the inside of the extraction device 3.

[0034] Reference Figure 2-4 A sealing groove 28 is provided on the top of the box body 7, and a silicone sealing ring 29 is fixedly installed inside the sealing groove 28. The bottom of the cover plate 10 is in contact with the silicone sealing ring 29. Two groups of bolts 13 penetrate the two groups of through holes 12 and are threadedly connected with the two groups of threaded holes 14. The three groups of filter plates have the same mesh number of 9. One end of the cylindrical filter screen 24 is inserted into the annular alignment groove 25, and the other end of the cylindrical filter screen 24 is sleeved on the surface of the annular alignment plate 23. The mesh number of the cylindrical filter screen 24 is greater than the mesh number of the three groups of filter plates. The connecting pipe 2 6 is connected to the inside of the box body 7. A water pressure sensor 31 is fixedly installed on the top of the connecting pipe 2 6. The connecting pipe 3 16 is connected to the inside of the box body 7. The foot adjustment bolt 15 is fixedly connected to the top right side of the bottom plate 1. A water pressure sensor 2 32 is fixedly installed on the top of the connecting pipe 3 16. The water pressure sensor 1 31 is located on the left side of the box body 7, and the water pressure sensor 2 32 is located on the right side of the box body 7.

[0035] Specifically, the sealing groove 28 is used to install the silicone sealing ring 29 to seal the box body 7 and the cover plate 10. The two groups of bolts 13 and the two groups of threaded holes 14 are used to fix the cover plate 10 on the top of the box body 7. When the three groups of filter plates 9 need to be replaced, it is easy to install and disassemble. The cylindrical filter screen 24 is installed inside the filter barrel 17 to filter fine peels and impurities to improve the purity of black fruit mountain fruit juice. The water pressure sensor 1 31 is used to detect the liquid pressure of the juice entering the box body 7. The water pressure sensor 2 32 is used to detect the pressure of the liquid after filtering from the inside of the box body 7, so as to observe the filtering effect of the three groups of filter plates 9 by observing the pressure change. The mesh number of the cylindrical filter screen 24 is greater than the mesh number of the three groups of filter plates 9, which can better filter the peels and impurities in the liquid and improve the quality of the product extracted by the extraction device 3.

[0036] Reference Figure 3-4 The sealing plate 19 is connected to the filter barrel 17 through a flange, the sealing ring 18 is in contact with one side of the sealing plate 19, a handle 30 is welded on the front side of the sealing plate 19, the filter barrel 17 is connected to the connecting pipe 3 16, and the electric water valve 26 is connected to the delivery pump 27 through a flange.

[0037] Specifically, the sealing plate 19 is connected to the filter barrel 17 through a flange, which can play a good sealing role, has a simple structure, and is easy to install and disassemble. A handle 30 is welded on the front side of the sealing plate 19, which is convenient for users to dock and take when installing or disassembling the sealing plate 19. The electric water valve 26 is used to detect the liquid pressure flowing out of the filter barrel 17 and automatically block the liquid of the fluid in the filter barrel 17 to ensure the safe operation of the delivery pump 27.

[0038] Working principle: when in use, black fruit mountain ash is poured into the crushing device 2, and the crushing device 2 rolls and stirs the black fruit mountain ash. The stirred liquid mixture and peel flow from the bottom right side of the crushing device 2 to the inside of the connecting pipe 1 4 and flow into it from the top left side of the box 7 along the manual ball valve 5 and the connecting pipe 2 6. After the liquid passes through the three groups of filter plates 9, the larger peels and impurities are intercepted on their surface, and the motor 20 is started to run. The output end of the motor 20 drives the rotating shaft 21 and the two groups of stirring blades 22 to rotate rapidly. The rotation of the two groups of stirring blades 22 increases the speed at which the filtered liquid flows out of the box 7. The liquid flows rapidly from the connecting pipe 3 16 to the inside of the filter barrel 17. At the same time, the two groups of stirring blades 22 rotate and spray the liquid on the surface of the cylindrical filter screen 24. The mesh number of the cylindrical filter screen 24 is greater than the mesh number of the three groups of filter plates 9. The fine peels and impurities are effectively intercepted inside the cylindrical filter screen 24, and the filtered liquid flows out from the right side of the filter barrel 17. Start The automatic delivery pump 27 is operated, and the delivery pump 27 is used to quickly extract the filtered liquid from the filter barrel 17 and deliver it to the extraction device 3. The black fruit ash liquid after rolling and stirring passes through the three groups of filter plates 9 and the cylindrical filter screen 24, and the peels and impurities in the liquid are effectively filtered. The water pressure sensor 1 31 is used to measure the pressure entering the box body 7, and the water pressure sensor 2 32 is used to detect the pressure of the liquid after filtering from the box body 7. When the pressure of the water pressure sensor 2 32 is small, the peels and impurities filtered inside the three groups of filter plates 9 are more, which reduces the flow rate of the liquid. At this time, the two groups of bolts 13 are rotated out from the two groups of threaded holes 14, and the cover plate 10 is separated from the top of the box body 7. The three groups of filter plates 9 are extracted and cleaned from the three groups of chutes 8. The cleaned three groups of filter plates 9 are installed again in the three groups of chutes 8, and the cover plate 10 is covered. The two groups of bolts 13 are passed through the two groups of through holes 12 and rotated into the two groups of threaded holes 14 for fixing.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for extracting pigment from Sorbus rufipogon, comprising a base plate (1), a crushing device (2) and an extraction device (3), characterized in that: The crushing device (2) is fixedly mounted on the left side of the top of the bottom plate (1); the bottom flange of the right side of the crushing device (2) is connected to a connecting pipe 1 (4); the right flange of the connecting pipe 1 (4) is connected to a manual ball valve (5); the right flange of the manual ball valve (5) is connected to a connecting pipe 2 (6); a primary filter assembly is fixedly mounted on the top of the bottom plate (1); a secondary filter assembly is fixedly mounted on the right side of the top of the bottom plate (1); a delivery pump (27) is fixedly mounted on the right side of the top of the bottom plate (1); the extraction device (3) is fixedly mounted on one side of the top of the bottom plate (1); the delivery pump (27) is located on the front side of the extraction device (3); and the delivery pump (27) is connected to the extraction device (3).

2. The device for extracting pigment from Sorbus ruticosa L. according to claim 1, characterized in that: The primary filtering assembly comprises a box body (7), the box body (7) is connected with a second connecting pipe (6), three groups of slide grooves (8) are provided inside the box body (7), three groups of filter plates (9) are slidably connected inside the three groups of slide grooves (8), a cover plate (10) is provided on the top of the box body (7), U-shaped rods (11) are welded on both sides of the top of the cover plate (10), two groups of through holes (12) are provided on both sides of the U-shaped rod (11), two groups of bolts (13) are provided on both sides of the U-shaped rod (11), two groups of threaded holes (14) are provided on the top of both sides of the box body (7), the bottom of both sides of the box body (7) are fixedly installed with anchor adjustment bolts (15), and the bottom flange of the right side of the box body (7) is connected to a third connecting pipe (16).

3. The device for extracting pigment from Sorbus rufipogon according to claim 1, characterized in that: The secondary filtering assembly comprises a filter barrel (17), the filter barrel (17) is fixedly mounted on the right side of the top of the bottom plate (1), a sealing ring (18) is fixedly mounted on the front side of the filter barrel (17), a sealing plate (19) is arranged on the front side of the filter barrel (17), a motor (20) is fixedly mounted on the rear side of the filter barrel (17), a rotating shaft (21) is fixedly mounted on the output end of the motor (20), the rotating shaft (21) passes through the rear side of the filter barrel (17), two groups of stirring blades (22) are welded on the surface of the rotating shaft (21), an annular alignment plate (23) is welded on the rear side of the inside of the filter barrel (17), a cylindrical filter screen (24) is arranged inside the filter barrel (17), an annular alignment groove (25) is opened on the rear side of the sealing plate (19), and an electric water valve (26) is flange-connected to the right side of the filter barrel (17).

4. The device for extracting pigment from Sorbus rufipogon according to claim 2, characterized in that: The top of the box body (7) is provided with a sealing groove (28), a silicone sealing ring (29) is fixedly installed inside the sealing groove (28), the bottom of the cover plate (10) is in contact with the silicone sealing ring (29), the two groups of bolts (13) pass through the two groups of through holes (12) and are threadedly connected to the two groups of threaded holes (14), and the three groups of filter plates (9) have the same mesh number.

5. The device for extracting pigment from Sorbus ruticosa L. according to claim 3, characterized in that: The sealing plate (19) is connected to the filter barrel (17) via a flange, the sealing ring (18) is in contact with one side of the sealing plate (19), a handle (30) is welded to the front side of the sealing plate (19), the filter barrel (17) is connected to the connecting pipe three (16), and the electric water valve (26) is connected to the delivery pump (27) via a flange.

6. The device for extracting pigment from Sorbus rufipogon according to claim 3, characterized in that: One end of the cylindrical filter screen (24) is inserted into the annular alignment groove (25), and the other end of the cylindrical filter screen (24) is sleeved on the surface of the annular alignment plate (23). The mesh number of the cylindrical filter screen (24) is greater than the mesh number of the three groups of filter plates (9).

7. The device for extracting pigment from Sorbus ruthenica according to claim 2, characterized in that: The second connecting pipe (6) is connected to the interior of the box (7), a water pressure sensor (31) is fixedly installed on the top of the second connecting pipe (6), the third connecting pipe (16) is connected to the interior of the box (7), and the anchor adjustment bolt (15) is fixedly connected to the top right side of the bottom plate (1).

8. The device for extracting pigment from Sorbus ruthenica according to claim 7, characterized in that: A water pressure sensor 2 (32) is fixedly installed on the top of the connecting pipe 3 (16), the water pressure sensor 1 (31) is located on the left side of the box body (7), and the water pressure sensor 2 (32) is located on the right side of the box body (7).