Reverse osmosis membrane performance testing device

Abstract

The invention discloses a reverse osmosis membrane performance testing device which comprises a working table, a testing assembly is arranged at the top end of the working table, a storage box is arranged at the top end of the working table, a formula cabinet is arranged at the top end of the working table, a storage cabinet and a batching cabinet are arranged in the formula cabinet, and a rotating disc is rotationally connected into the batching cabinet. Notches are evenly formed in the periphery of the rotating disc in a surrounding mode, a transparent measuring cup is clamped to one end of each notch, sealing bottom plates are symmetrically and rotationally connected to the bottom end of each transparent measuring cup, a baffle is arranged in the batching cabinet, and the baffles make contact with the bottom ends of the transparent measuring cups. Through cooperation of the limiting disc and the limiting block, angle positioning of each rotation degree is ensured, the transparent measuring cup is accurately aligned with the liquid outlet, manual intervention is not needed in gravity self-flowing, errors caused by uneven force and speed in traditional manual control are avoided, reagent matching precision and repeatability are improved, human factor interference is reduced, and scientificity of a test result is guaranteed.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of reverse osmosis membrane testing, and particularly relates to a reverse osmosis membrane performance testing device. BACKGROUND

[0002] In the use scene and principle of the reverse osmosis membrane, the reverse osmosis membrane needs to be tested during production and processing, and various situations may be encountered during testing, but are not limited to the following situation. The existing reverse osmosis membrane is usually installed at a water supply position during performance testing, and the impurity content in filtered water is detected.

[0003] According to the reverse osmosis membrane performance testing device disclosed in the announcement No. CN117138591A, which is applied to the technical field of reverse osmosis membrane testing, the structure can be conveniently installed and supported through the cooperation of the workbench and the test seat. The connecting assembly can be used for conveniently connecting the structure and the reverse osmosis membrane to be tested. The stand rod cooperates with the top frame to conveniently connect the top structure. The discharge tank can be used for conveniently taking the filtered sewage and clean water. The adapter cylinder can be used for conveniently cooperating with drainage. When in use, the reverse osmosis membrane to be tested can be directly placed in the inner side of the contact disc of the connecting assembly and stably contacted. The clean water pipe is inserted into the inner side of the clean water outlet of the reverse osmosis membrane through the air bag and the sleeve. Then, the top chuck is clamped at the top of the reverse osmosis membrane through the electric telescopic cylinder, and the liquid is introduced into the reverse osmosis membrane through the connecting hose connected with the top chuck. The purified water of the reverse osmosis membrane falls into the discharge tank through the clean water pipe.

[0004] The above device can adjust the impurity content in the liquid in the storage tank as required and supply the liquid through the liquid pump to control the impurities in the input water, so that the test is more flexible. According to the description and the drawings, the device manually controls the addition of reagents through the piston sheet and the connecting rod of the formula cylinder, relies on manual operation, and is difficult to accurately control the reagent addition amount. SUMMARY

[0005] The application aims to solve the problem that the above device can adjust the impurity content in the liquid in the storage tank as required and supply the liquid through the liquid pump to control the impurities in the input water, so that the test is more flexible. According to the description and the drawings, the device manually controls the addition of reagents through the piston sheet and the connecting rod of the formula cylinder, relies on manual operation, and is difficult to accurately control the reagent addition amount. The application provides a reverse osmosis membrane performance testing device.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a reverse osmosis membrane performance testing device, comprising a workbench, a test assembly is arranged at the top end of the workbench, a storage box is arranged at the top end of the workbench, a formula cabinet is arranged at the top end of the workbench, a storage cabinet and a batching cabinet are arranged in the formula cabinet, a rotating disc is rotatably connected in the batching cabinet, and notches are uniformly arranged around the outer periphery of the rotating disc, a transparent measuring cup is connected to one end of the notch, a sealing bottom plate is symmetrically and rotatably connected to the bottom end of the transparent measuring cup, a baffle is arranged in the batching cabinet and in contact with the bottom end of the transparent measuring cup, a liquid discharge opening for the sealing bottom plate is arranged at the top end of the baffle, a rotating shaft is fixedly installed at the bottom end of the rotating disc, a bevel gear one is fixedly installed on the rotating shaft penetrating through the baffle, a rotating shaft is rotatably connected to one end of the formula cabinet, a bevel gear two is fixedly installed on the rotating shaft penetrating through the batching cabinet, the bevel gear two is meshingly connected with the bevel gear one, a rotating handle is fixedly installed on one end of the rotating shaft, a liquid outlet is arranged at the bottom end of the baffle, a connecting hose is fixedly installed at the bottom end of the liquid discharge opening, and the connecting hose is connected with the formula cabinet and the storage box penetrating through the formula cabinet.

[0007] As a further scheme of the present application: a limiting disc is fixedly installed around the outer periphery of the rotating shaft, limiting openings are uniformly arranged around the outer periphery of the limiting disc, the limiting openings are distributed at an angle of 90 degrees, a connecting block is fixedly installed at one end of the formula cabinet, and a first through groove is arranged in the connecting block, a limiting block is slidably connected in the first through groove, and the limiting block is matched with the limiting opening.

[0008] As a further scheme of the present application: a first reset spring is fixedly installed in the first through groove, and one end of the first reset spring is fixedly installed with the limiting block, a first connecting rod is slidably connected to the top end of the connecting block, and the first connecting rod is fixedly installed penetrating through the first through groove and the limiting block.

[0009] As a further scheme of the present application: limiting insertion grooves are symmetrically arranged at both ends of the transparent measuring cup, a second through groove is symmetrically arranged in the notch, a wedge-shaped clamping block is slidably connected in the second through groove, and the wedge-shaped clamping block is matched with the limiting insertion groove.

[0010] As a further scheme of the present application: a second reset spring is fixedly installed in the second through groove, and one end of the second reset spring is fixedly installed with the wedge-shaped clamping block, a second through groove is arranged at the bottom end of the second through groove, a second connecting rod is slidably connected in the second through groove, and the second connecting rod is fixedly installed penetrating through the second through groove and the wedge-shaped clamping block.

[0011] As a further scheme of the present application: limiting tooth grooves for lifting adjustment of the baffle are symmetrically arranged in the batching cabinet, third through grooves are symmetrically arranged at both ends of the baffle, limiting insertion blocks are slidably connected in the third through grooves, and the limiting insertion blocks are matched with the limiting tooth grooves.

[0012] As a further scheme of the present application: the through slot three internally fixedly installs with the limiting plug fixedly installs with the reset spring three, the baffle bottom end slidingly connects with the connecting rod three, and the connecting rod three penetrates through the through slot three and is fixedly installed with the limiting plug.

[0013] As a further scheme of the present application: the formula cabinet bottom end fixedly installs the support rod, and the support rod is symmetrically fixedly installed on the formula cabinet bottom end, and the support rod bottom end is fixedly installed with the workbench top end.

[0014] As a further scheme of the present application: the formula cabinet one end rotationally connects with the locking cabinet door, and the locking cabinet door one end is provided with a transparent observation window convenient for observation.

[0015] As a further scheme of the present application: the workbench internally is provided with a discharge box, the workbench internally is provided with a connection barrel one, and the workbench internally is provided with a connection barrel two.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] The present application ensures the angle positioning of each rotation degree through the cooperation of the limiting disc and the limiting block, accurately aligns the transparent measuring cup with the discharge port, and avoids the errors caused by uneven force and speed in traditional manual control, improves the reagent proportioning accuracy and repeatability, reduces human factor interference, and ensures the scientificity of test results.

[0018] The present application can drive the wedge-shaped block to overcome the spring force and exit the limiting slot by pulling the connecting rod two, quickly unlock the old transparent measuring cup, and does not need tools and complicated operation.

[0019] The present application can drive the limiting plug to overcome the spring force and exit the limiting tooth groove by pulling the connecting rod three, quickly release the baffle fixing, conveniently freely adjust the height, automatically push the plug into the corresponding tooth groove after loosening, adjust the baffle height, ensure the cooperation with the transparent measuring cup sealing bottom plate, guarantee the reagent smooth discharge, and improve the compatibility and applicability of the device to different measuring cups. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the overall structure schematic diagram of the present application;

[0021] Figure 2 It is the cross-sectional structure schematic diagram of the formula cabinet in the present application;

[0022] Figure 3is the side structure schematic view of the formula cabinet in the present application;

[0023] Figure 4 is the cross-sectional structure schematic view of the connecting block in the present application;

[0024] Figure 5 is the internal structure schematic view of the formula cabinet in the present application;

[0025] Figure 6 is the local enlarged structure schematic view of A in the present application Figure 5

[0026] Figure 7 is the structure schematic view of the rotating disc in the present application;

[0027] Figure 8 is the local cross-sectional structure schematic view of the rotating disc and the transparent measuring cup in the present application;

[0028] Figure 9 is the cross-sectional structure schematic view of the baffle in the present application.

[0029] In the figure: 1, workbench; 2, test assembly; 3, storage box; 4, formula cabinet; 5, storage cabinet; 6, ingredient cabinet; 7, rotating disc; 8, notch; 9, transparent measuring cup; 10, rotating shaft; 11, baffle; 12, sealing bottom plate; 13, liquid discharge port; 14, connecting hose; 15, bevel gear one; 16, rotating shaft; 17, bevel gear two; 18, rotating handle; 19, limiting disc; 20, limiting port; 21, connecting block; 22, through groove one; 23, limiting block; 24, connecting rod one; 25, reset spring one; 26, liquid outlet; 27, liquid inlet pipe; 28, limiting slot; 29, through groove two; 30, wedge-shaped clamping block; 31, reset spring two; 32, long groove; 33, connecting rod two; 34, limiting tooth groove; 35, through groove three; 36, limiting plug; 37, reset spring three; 38, connecting rod three; 39, support rod; 40, locking cabinet door; 41, transparent observation window; 42, discharge tank; 43, adapter cylinder one; 44, adapter cylinder two. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0031] ​In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "arrangement" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The embodiments of the present application will be described below according to the overall structure of the present application.

[0032] Referring to Figures 1 to 9 In the embodiments of the present application, a reverse osmosis membrane performance testing device comprises a workbench 1, a test assembly 2 is arranged at the top end of the workbench 1, a storage box 3 is arranged at the top end of the workbench 1, a formula cabinet 4 is arranged at the top end of the workbench 1, a storage cabinet 5 and a batching cabinet 6 are arranged inside the formula cabinet 4, a rotating disc 7 is rotatably connected inside the batching cabinet 6, and notches 8 are uniformly arranged around the outer periphery of the rotating disc 7. A transparent measuring cup 9 is connected at one end of the notch 8, and a sealing bottom plate 12 is rotatably connected at the bottom end of the transparent measuring cup 9. A baffle 11 is arranged inside the batching cabinet 6, and the baffle 11 is in contact with the bottom end of the transparent measuring cup 9. A liquid discharge port 13 is arranged at the top end of the baffle 11 for opening the sealing bottom plate 12. A rotating shaft 10 is fixedly installed at the bottom end of the rotating disc 7, and a bevel gear one 15 is fixedly installed through the baffle 11. A rotating shaft 16 is rotatably connected at one end of the formula cabinet 4, a bevel gear two 17 is fixedly installed through the batching cabinet 6 at one end of the rotating shaft 16, and the bevel gear two 17 is meshingly connected with the bevel gear one 15. A rotating handle 18 is fixedly installed at one end of the rotating shaft 16. A liquid outlet 26 is arranged at the bottom end inside the storage cabinet 5. A connecting hose 14 is fixedly installed at the bottom end of the liquid discharge port 13, and one end of the connecting hose 14 is connected through the formula cabinet 4 and the storage box 3. A liquid inlet pipe 27 is fixedly installed at the top end of the storage cabinet 5.

[0033] With the above scheme: workbench 1, test assembly 2 and storage box 3 are all prior art cited in the reference, no detailed description in this application, formula cabinet 4 is stainless steel, storage cabinet 5 and ingredient cabinet 6 are separated by partition, rotating disc 7 is made of ABS engineering plastic, notches 8 are evenly distributed in 4 places, the angle is ninety degrees, matched with transparent measuring cup 9 (PP material), sealing bottom plate 12 is silicone, connected with the bottom end of transparent measuring cup 9 through stainless steel shaft, baffle 11 is stainless steel, the edge of liquid discharge port 13 is rounded and inverted conical, rotating shaft 10 is integrally injection molded with rotating disc 7, bevel gear one 15 is keyed connected with rotating shaft 10, rotating shaft 16 is supported by bearing, bevel gear two 17 is interference fitted with rotating shaft 16, rotating handle 18 is made of ABS+TPR material, the surface is knurled, connecting hose 14 is made of food grade silicone tube, liquid outlet 26 and liquid inlet pipe 27 are made of stainless steel, rotating handle 18 drives bevel gear pair to drive rotating disc 7 to rotate (90° per grid), when transparent measuring cup 9 rotates to liquid discharge port 13, sealing bottom plate 12 opens, liquid flows into storage box 3 through connecting hose 14, realizing quantitative dosing function.

[0034] With reference to Figures 1 to 9 , rotating shaft 16 is fixedly installed with limiting disc 19 on the outer periphery, limiting disc 19 is uniformly surrounded by limiting port 20 on the outer periphery, limiting port 20 is distributed at ninety degrees, one end of formula cabinet 4 is fixedly installed with connecting block 21, connecting block 21 is internally provided with through slot one 22, limiting block 23 is slidingly connected inside through slot one 22, limiting block 23 is matched with limiting port 20, reset spring one 25 is fixedly installed inside through slot one 22, one end of reset spring one 25 is fixedly installed with limiting block 23, connecting rod one 24 is slidingly connected with the top end of connecting block 21, connecting rod one 24 is fixedly installed through through slot one 22 and limiting block 23;

[0035] With the above scheme: limiting disc 19 is made of 45# steel and is connected with rotating shaft 16 through a key, limiting port 20 is evenly distributed in 4 places, connecting block 21 is made of steel, through slot one 22 is slidingly matched with limiting block 23 (40Cr steel), reset spring one 25 is selected from 65Mn, providing locking force, connecting rod one 24 is welded with limiting block 23, the surface is knurled and matched with the gap between the top end hole of connecting block 21, when rotating handle 18 is rotated by 90°, the worker releases connecting rod one 24, at this time, limiting block 23 is embedded in limiting port 20 under the action of reset spring one 25, realizing positioning, pulling connecting rod one 24 can release the lock.

[0036] With reference to Figures 1 to 9, the both ends of the transparent measuring cup 9 are symmetrically provided with limiting insertion grooves 28, symmetrically provided with through grooves two 29 inside the slot 8, and the inside of the through grooves two 29 is slidably connected with wedge-shaped clamping blocks 30, the wedge-shaped clamping blocks 30 are matched with the limiting insertion grooves 28, the inside of the through grooves two 29 is fixedly installed with reset springs two 31, and one end of the reset springs two 31 is fixedly installed with the wedge-shaped clamping blocks 30, the bottom end of the through grooves two 29 is throughly provided with long grooves 32, and the inside of the long grooves 32 is slidably connected with connecting rods two 33, and the connecting rods two 33 are fixedly installed with the wedge-shaped clamping blocks 30 through the long grooves 32;

[0037] With the above scheme: the through grooves two 29 inside the slot 8 of the limiting insertion grooves 28 at the both ends of the transparent measuring cup 9 (PP material) are matched with the wedge-shaped clamping blocks 30 (40Cr steel), the reset springs two 31 are selected from stainless steel, the long grooves 32 are vertically through the through grooves two 29, the surface of the connecting rods two 33 is knurled, and is matched with the long grooves 32, the connecting rods two 33 will not affect the normal rotation of the rotating disc 7, when replacing the transparent measuring cup 9, the staff pulls the connecting rods two 33, the connecting rods two 33 slide in the long grooves 32, drive the wedge-shaped clamping blocks 30 to overcome the elastic force of the reset springs two 31, so that they are withdrawn from the limiting insertion grooves 28 of the transparent measuring cup 9, and the locking of the transparent measuring cup 9 is released, at this time, the old transparent measuring cup 9 can be easily taken out from the slot 8 of the rotating disc 7, then, the new transparent measuring cup 9 is put into the slot 8, the limiting insertion grooves 28 are aligned with the wedge-shaped clamping blocks 30, the connecting rods two 33 are loosened, the reset springs two 31 restore deformation, the wedge-shaped clamping blocks 30 are pushed to the limiting insertion grooves 28, until the wedge-shaped clamping blocks 30 are clamped into the limiting insertion grooves 28, and the fixing and installation of the new transparent measuring cup 9 are completed.

[0038] Refer to Figures 1 to 9 , the inside of the ingredient cabinet 6 is symmetrically provided with limiting tooth grooves 34 for lifting adjustment of the baffle 11, the both ends of the baffle 11 are symmetrically provided with through grooves three 35, the inside of the through grooves three 35 is slidably connected with limiting insertion blocks 36, and the limiting insertion blocks 36 are matched with the limiting tooth grooves 34, the inside of the through grooves three 35 is fixedly installed with reset springs three 37 fixedly installed with the limiting insertion blocks 36, the bottom end of the baffle 11 is slidably connected with connecting rods three 38, and the connecting rods three 38 are fixedly installed with the limiting insertion blocks 36 through the through grooves three 35;

[0039] With the above scheme: the limiting tooth groove 34 is symmetrically arranged in the inner wall of the batching cabinet 6, the through slot three 35 at both ends of the baffle 11 (stainless steel) cooperates with the limiting plug 36 (40Cr steel) to slide, the reset spring three 37 is made of 65Mn, providing the plug-in force, the connecting rod three 38 is welded with the limiting plug 36, the surface is knurled, and the baffle 11 is slidably matched with the bottom end hollow slot. When it is necessary to adjust the height of the baffle 11 to adapt to transparent measuring cups 9 of different heights, the connecting rod three 38 at the bottom end of the baffle 11 is pulled, the connecting rod three 38 drives the limiting plug 36 to slide in the through slot three 35, the elastic force of the reset spring three 37 is overcome, the limiting plug 36 is withdrawn from the limiting tooth groove 34, and the fixing and limiting of the baffle 11 are released. At this time, the baffle 11 can be freely moved up and down in the limiting tooth groove 34 in the batching cabinet 6 to the appropriate position according to the height of the transparent measuring cup 9. After the baffle 11 is adjusted to the position, the connecting rod three 38 is loosened, the reset spring three 37 restores the deformation, the limiting plug 36 is reinserted into the limiting tooth groove 34 of the corresponding height, the baffle 11 is firmly locked, and the height of the baffle 11 can be adjusted to ensure that the top end of the baffle 11 is in contact with the sealing bottom plate 12 at the bottom end of the transparent measuring cup 9 of different heights. When the sealing bottom plate 12 is aligned with the liquid discharge port 13, the reagent can be effectively received, the reagent can flow into the connecting hose 14 through the liquid discharge port 13 smoothly, and flexible and stable support is provided for the use of transparent measuring cups of different specifications.

[0040] With reference to Figures 1 to 9 , the support rod 39 is fixedly installed at the bottom end of the formula cabinet 4, the support rod 39 is symmetrically fixedly installed at the bottom end of the formula cabinet 4, the bottom end of the support rod 39 is fixedly installed with the top end of the workbench 1, one end of the formula cabinet 4 is rotatably connected with the locking cabinet door 40, and one end of the locking cabinet door 40 is provided with a transparent observation window 41 for observation.

[0041] With the above scheme: the support rod 39 is made of steel pipe material and is fixed with the formula cabinet 4 through stainless steel bolts, the locking cabinet door 40 is made of cold-rolled steel plate and is connected with the cabinet body through a hinge (stainless steel), the transparent observation window 41 is made of PC plate and is sealed and embedded into the door frame through a silica gel strip, and the door lock is made of zinc alloy die casting.

[0042] With reference to Figures 1 to 9 , the discharge box 42, the connection cylinder one 43 and the connection cylinder two 44 are all existing technologies in the reference comparative document, and are not described in detail in the present application.

[0043] With the above scheme: the discharge box 42, the connection cylinder one 43 and the connection cylinder two 44 are all existing technologies in the reference comparative document, and are not described in detail in the present application.

[0044] The working principle of the present application is that when the formula is prepared, the staff rotates the rotating handle 18 to drive the rotating shaft 16 to rotate, the bevel gear two 17 on the rotating shaft 16 meshes with the bevel gear one 15 on the rotating shaft 10 to drive the rotating disc 7 to rotate, when the rotating shaft 16 rotates, the limiting disc 19 rotates synchronously, the limiting openings 20 on the outer periphery of the limiting disc 19 are distributed at 90 degrees, when it is rotated to a specific angle, the limiting block 23 is automatically clamped into the limiting opening 20 under the elastic force of the reset spring one 25, the rotating disc 7 is accurately positioned, the rotating angle is consistent every time, the transparent measuring cup 9 containing the reagent is accurately rotated above the baffle 11, at this time, the sealing bottom plate 12 at the bottom end of the transparent measuring cup 9 is aligned with the liquid discharge port 13 of the baffle 11, the reagent automatically flows into the storage tank 3 through the connecting hose 14 through the liquid discharge port 13 relying on gravity, the reagent adding process does not need manual control, the mechanical transmission and limiting are used to realize the quantitative and stable feeding of the transparent measuring cup 9, the reagent adding amount error caused by uneven force and speed in manual operation is avoided, and the accuracy and stability of the reagent proportioning in the reverse osmosis membrane performance test are effectively improved.

[0045] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A reverse osmosis membrane performance testing device, comprising a workbench (1), a test assembly (2) disposed on the top of the workbench (1), and a storage box (3) disposed on the top of the workbench (1), characterized in that: A recipe cabinet (4) is provided at the top of the workbench (1), a storage cabinet (5) and a batching cabinet (6) are provided inside the recipe cabinet (4), a rotating disk (7) is rotatably connected inside the batching cabinet (6), and notches (8) are evenly arranged around the outer periphery of the rotating disk (7), a transparent measuring cup (9) is clamped at one end of the notch (8), and a sealing bottom plate (12) is symmetrically rotatably connected at the bottom end of the transparent measuring cup (9), a baffle (11) is provided inside the batching cabinet (6), and the baffle (11) is in contact with the bottom end of the transparent measuring cup (9), a liquid discharge port (13) for opening the sealing bottom plate (12) is provided at the top end of the baffle (11), and a rotating shaft (10) is fixedly installed at the bottom end of the rotating disk (7) , and the rotating shaft (10) passes through the baffle (11) and is fixedly installed with a bevel gear (15), one end of the formula cabinet (4) is rotatably connected with a rotating shaft (16), one end of the rotating shaft (16) passes through the batching cabinet (6) and is fixedly installed with a bevel gear (17), and the bevel gear (17) is meshed and connected with the bevel gear (15), one end of the rotating shaft (16) is fixedly installed with a rotating handle (18), the bottom end of the storage cabinet (5) is provided with a liquid outlet (26), the bottom end of the liquid discharge port (13) is fixedly installed with a connecting hose (14), and one end of the connecting hose (14) passes through the formula cabinet (4) and is connected with the storage box (3), and the top of the storage cabinet (5) is fixedly installed with a liquid inlet pipe (27).

2. A reverse osmosis membrane performance testing device according to claim 1, characterized in that, A limiting disk (19) is fixedly installed on the outer periphery of the rotating shaft (16), and limiting openings (20) are evenly arranged around the outer periphery of the limiting disk (19), and the limiting openings (20) are distributed at ninety degrees. A connecting block (21) is fixedly installed on one end of the recipe cabinet (4), and a through groove (22) is provided inside the connecting block (21), and a limiting block (23) is slidably connected inside the through groove (22), and the limiting block (23) is adapted to the limiting opening (20).

3. A reverse osmosis membrane performance testing device according to claim 2, characterized in that, A return spring (25) is fixedly installed inside the through slot (22), and one end of the return spring (25) is fixedly installed with the limit block (23). The top of the connecting block (21) is slidably connected with a connecting rod (24), and the connecting rod (24) passes through the through slot (22) and is fixedly installed with the limit block (23).

4. A reverse osmosis membrane performance testing device according to claim 3, characterized in that, The two ends of the transparent measuring cup (9) are symmetrically provided with limiting slots (28), the interior of the notch (8) is symmetrically provided with a second through slot (29), and the interior of the second through slot (29) is slidably connected with a wedge-shaped card block (30), and the wedge-shaped card block (30) is adapted to the limiting slot (28).

5. A reverse osmosis membrane performance testing device according to claim 4, characterized in that, A second reset spring (31) is fixedly installed inside the second through slot (29), and one end of the second reset spring (31) is fixedly installed with the wedge-shaped block (30). A long slot (32) is opened through the bottom end of the second through slot (29), and a second connecting rod (33) is slidably connected inside the long slot (32). The second connecting rod (33) passes through the long slot (32) and is fixedly installed with the wedge-shaped block (30).

6. A reverse osmosis membrane performance testing device according to claim 5, characterized in that, The ingredient cabinet (6) is symmetrically provided with a limit tooth groove (34) for the baffle (11) to be raised and lowered, and the baffle (11) is symmetrically provided with a through groove three (35) at both ends. The through groove three (35) is slidably connected with a limit plug (36) inside, and the limit plug (36) is adapted to the limit tooth groove (34).

7. A reverse osmosis membrane performance testing device according to claim 6, characterized in that, A return spring three (37) is fixedly installed inside the through slot three (35) and fixedly installed on the limiting plug block (36); a connecting rod three (38) is slidably connected to the bottom end of the baffle (11), and the connecting rod three (38) passes through the through slot three (35) and is fixedly installed on the limiting plug block (36).

8. A reverse osmosis membrane performance testing device according to claim 7, characterized in that: A support rod (39) is fixedly installed at the bottom end of the recipe cabinet (4), and the support rod (39) is symmetrically fixedly installed at the bottom end of the recipe cabinet (4), and the bottom end of the support rod (39) is fixedly installed with the top end of the workbench (1).

9. A reverse osmosis membrane performance testing device according to claim 8, characterized in that: One end of the recipe cabinet (4) is rotatably connected to a locking cabinet door (40), and one end of the locking cabinet door (40) is provided with a transparent observation window (41) for easy observation.

10. A reverse osmosis membrane performance testing device according to claim 9, characterized in that: The workbench (1) is provided with a discharge box (42) inside, the workbench (1) is provided with a first connecting tube (43) inside, and the workbench (1) is provided with a second connecting tube (44) inside.

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