Sealed storage device for sulfuric acid and hydrogen peroxide etching solution

Abstract

The utility model relates to an etching liquid storage device, in particular to a sealing storage device for sulfuric acid and hydrogen peroxide etching liquid, which comprises a tank body, a tank cover is arranged on the tank body; a liquid inlet pipe and a liquid discharge pipe are mounted on the tank cover; the liquid discharge pipe is communicated with a liquid outlet pipe; a guide pipe hermetically communicated with the liquid discharge pipe is mounted in the tank body; opening and closing structures are arranged on the liquid inlet pipe and the liquid outlet pipe; a synchronous structure is arranged on the tank cover; a liquid pumping structure is arranged on the liquid discharging pipe; one-way structures are arranged on the liquid inlet pipe, the liquid discharge pipe and the liquid outlet pipe; when the synchronous structure acts, the two opening and closing structures can be driven to act, so that the liquid inlet pipe and the liquid outlet pipe are synchronously opened or closed; after conduction, through mutual cooperation of the multiple one-way structures and the liquid extraction structure, the liquid extraction action can be efficiently carried out, the etching liquid in the tank body can be prevented from being exposed in the outside air in a large area in the liquid extraction action process, the volatilization efficiency of the etching liquid is reduced, and therefore harmful gas is prevented from directly flowing to the atmosphere to cause adverse effects.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of etching liquid storage devices, specifically the sealed storage device of sulfuric acid hydrogen peroxide etching liquid. BACKGROUND

[0002] Sulfuric acid hydrogen peroxide etching liquid is a commonly used etching liquid, mainly used for etching metal surface;The main components of this etching liquid include sulfuric acid and hydrogen peroxide. Sulfuric acid provides acidic environment, while hydrogen peroxide acts as oxidizing agent. The advantages of sulfuric acid hydrogen peroxide etching liquid include simple solution composition, only copper sulfate after etching, etching liquid can be regenerated and recycled, high-purity copper sulfate crystals are obtained, and waste liquid discharge is less and less polluting to the environment. The storage device of sulfuric acid hydrogen peroxide etching liquid is mainly storage tank.

[0003] Common storage tanks are mostly made of polyethylene or stainless steel. Because the mechanical strength of polyethylene is not high, accidental damage can cause etching liquid to leak, so the use scene is relatively narrow. Stainless steel storage tank has high mechanical strength and can easily adapt to complex production environment.

[0004] Common stainless steel storage tank includes tank body, tank cover, and some also includes liquid pump system. Through the sealed connection between tank cover and tank body, a good sealing environment can be provided for etching liquid. When it is needed to be taken out, the tank body and the tank cover are separated, and the etching liquid can be taken out from the tank body through a container;Or the etching liquid can be directly extracted by the liquid pump system.

[0005] Because both sulfuric acid and hydrogen peroxide have strong oxidizing property, high requirements are placed on the oxidation resistance of the liquid pump system, which greatly increases the production cost. And the etching liquid is taken out by using a container, the etching liquid in the tank body is directly exposed to the atmosphere, which will increase the volatilization efficiency of the etching liquid in the tank body, and the acid gas generated by volatilization will be directly discharged into the atmosphere, which will not only pollute the air, but also may cause adverse effects. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a sealed storage device for sulfuric acid hydrogen peroxide etching liquid to solve the problems raised in the background art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] The sealed storage device for sulfuric acid hydrogen peroxide etching liquid comprises a tank body;

[0009] A tank cover is provided on the tank body and can be fixed and sealed by bolts;

[0010] A liquid inlet pipe and a liquid outlet pipe are installed on the tank cover;A liquid outlet pipe is connected to a liquid outlet pipe;

[0011] A conduit is installed in the tank body and is in sealed communication with the liquid outlet pipe.

[0012] The inlet pipe and the outlet pipe are provided with opening and closing structures;

[0013] The tank cover is provided with a synchronous structure;

[0014] The drain pipe is provided with a liquid pumping structure; the inlet pipe, the drain pipe and the outlet pipe are all provided with one-way structures;

[0015] The synchronous structure can drive the two opening and closing structures to act when the synchronous structure acts, so as to synchronously open or close the inlet pipe and the outlet pipe; after being opened, the liquid pumping structure and the one-way structure are matched with each other to pump the etching liquid from the tank body to the outlet pipe.

[0016] The sealing storage device for the sulfuric acid hydrogen peroxide etching liquid: the opening and closing structure includes rotating discs rotatably connected with the inlet pipe and the outlet pipe respectively; a plurality of groups of sealing plates are rotatably installed on the inlet pipe and the outlet pipe and matched with each other; the sealing plates are installed with protruding columns; the rotating discs are provided with inclined grooves slidably matched with the protruding columns.

[0017] The sealing storage device for the sulfuric acid hydrogen peroxide etching liquid: the synchronous structure includes a rotating shaft rotatably installed on the tank cover, the rotating shaft is installed with a first gear and a first pulley; a second pulley fixedly connected with one of the rotating discs is rotatably installed on the inlet pipe; the first pulley and the second pulley are connected through a belt; the other rotating disc is installed with a second gear meshed with the first gear.

[0018] The sealing storage device for the sulfuric acid hydrogen peroxide etching liquid: the one-way structure includes fixed rings and sealing rings fixedly connected with the inlet pipe, the drain pipe and the outlet pipe respectively; the fixed rings are slidably matched with sealing blocks abutting against the sealing rings; the fixed rings are provided with return springs, the two ends of the return springs abut against the sealing blocks and the fixed rings respectively.

[0019] The sealing storage device for the sulfuric acid hydrogen peroxide etching liquid: the liquid pumping structure is rotatably installed on the connecting rod of the drain pipe; the drain pipe is slidably and sealingly connected with a piston, the piston is installed with a top rod, and the top rod is rotatably installed with a hinge rotatably connected with the connecting rod.

[0020] The sealing storage device for the sulfuric acid hydrogen peroxide etching liquid: the conduit is installed with a trumpet mouth on one end close to the drain pipe; and a plurality of groups of notches are provided on the other end.

[0021] The sealing storage device for the sulfuric acid hydrogen peroxide etching liquid: a handle is installed on one end of the connecting rod away from the drain pipe.

[0022] The sealed storage device of the sulfuric acid hydrogen peroxide etching solution as described above: the rotating shaft is provided with a rotating rod.

[0023] Compared with the prior art, the beneficial effects of the sealed storage device of the sulfuric acid hydrogen peroxide etching solution are as follows: the two opening and closing structures are driven to move synchronously by the synchronous structure, so that the liquid inlet pipe and the liquid outlet pipe are synchronously turned on; then the etching solution can be injected into the tank through the liquid inlet pipe; after the tank is filled with the etching solution, the two opening and closing structures are driven to move synchronously by the synchronous structure, so that the liquid inlet pipe and the liquid outlet pipe are synchronously closed, the etching solution is sealed, the etching solution can be effectively prevented from being polluted by external pollutants during storage, and the volatilization speed of the etching solution caused by external environmental interference can be reduced; the opening and closing structure on the liquid outlet pipe can prevent the etching solution remaining in the pipeline from leaking after the liquid is taken out; through the cooperation of the plurality of one-way structures and the liquid pumping structure, the liquid pumping action can be more efficient, and the etching solution in the tank can be prevented from being exposed to the external air in a large area during the liquid taking action, so that the volatilization efficiency of the etching solution is reduced, and harmful gas is prevented from flowing directly into the atmosphere to cause adverse effects. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic view of the sealed storage device of the sulfuric acid hydrogen peroxide etching solution.

[0025] Figure 2 It is a structural schematic view of the sealed storage device of the sulfuric acid hydrogen peroxide etching solution from the perspective of the cross section.

[0026] Figure 3 It is Figure 2 It is a structural schematic view of the sealed storage device of the sulfuric acid hydrogen peroxide etching solution.

[0027] Figure 4 It is Figure 2 It is a structural schematic view of the sealed storage device of the sulfuric acid hydrogen peroxide etching solution.

[0028] Figure 5 It is a structural schematic view of the sealed storage device of the sulfuric acid hydrogen peroxide etching solution.

[0029] Figure 6 It is a structural schematic view of the sealed storage device of the sulfuric acid hydrogen peroxide etching solution.

[0030] Figure 7 It is a structural schematic view of the sealed storage device of the sulfuric acid hydrogen peroxide etching solution.

[0031] In the figure: 1, tank;

[0032] 2, tank cover;

[0033] 3, liquid inlet pipe;

[0034] 4, liquid outlet pipe; 401, liquid outlet pipe;

[0035] 5, conduit; 501, notch; 502, trumpet;

[0036] 6, fixed ring;

[0037] 7, sealing ring;

[0038] 8, sealing block;

[0039] 9, return spring;

[0040] 10, connecting rod; 1001, handle;

[0041] 11, hinge;

[0042] 12, ejector rod;

[0043] 13, piston;

[0044] 14, sealing plate; 1401, convex column;

[0045] 15, rotary disc; 1501, chute;

[0046] 16, rotating shaft; 1601, first gear; 1602, rotating rod;

[0047] 17, first pulley;

[0048] 18, second pulley;

[0049] 19, second gear. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0051] Please refer to Figures 1-7 As an embodiment of the utility model, the sealed storage device of the sulfuric acid hydrogen peroxide etching solution comprises a tank body 1.

[0052] A tank cover 2 is arranged on the tank body 1 and can be fixed and sealed by bolts.

[0053] A liquid inlet pipe 3 and a liquid outlet pipe 4 are installed on the tank cover 2, and a liquid outlet pipe 401 is communicated with the liquid outlet pipe 4.

[0054] A conduit 5 is installed in the tank body 1 and is in sealed communication with the liquid outlet pipe 4.

[0055] An opening and closing structure is arranged on the liquid inlet pipe 3 and the liquid outlet pipe 401.

[0056] A synchronous structure is arranged on the tank cover 2.

[0057] The liquid outlet pipe 4 is provided with a liquid pumping structure; the liquid inlet pipe 3 and the liquid outlet pipe 4 and the liquid outlet pipe 401 are all provided with a one-way structure;

[0058] The synchronous structure can drive the two opening and closing structures to act synchronously to open or close the liquid inlet pipe 3 and the liquid outlet pipe 401; after being opened, the liquid pumping structure and the one-way structure cooperate with each other to pump the etching liquid from the tank body 1 to the liquid outlet pipe 401.

[0059] In this embodiment, when in use, the tank cover 2 is connected with the tank body 1 in alignment (the liquid outlet pipe 4 is inserted into the conduit 5 and the two are sealedly connected); the tank cover 2 and the tank body 1 are fixedly and sealedly connected through bolts.

[0060] The synchronous structure drives the two opening and closing structures to act synchronously to open the liquid inlet pipe 3 and the liquid outlet pipe 401; then the etching liquid can be injected into the tank body 1 through the liquid inlet pipe 3; after the tank body 1 is filled with the etching liquid, the synchronous structure drives the two opening and closing structures to act synchronously to close the liquid inlet pipe 3 and the liquid outlet pipe 401 to seal the storage of the etching liquid, which can effectively avoid the pollution of the etching liquid by external pollutants during storage and reduce the volatilization speed of the etching liquid affected by the external environment; and the opening and closing structure on the liquid outlet pipe 4 can avoid the leakage of the etching liquid remaining in the pipeline after the liquid is taken out.

[0061] When it is needed to take out part of the etching liquid from the tank body 1, the synchronous structure is first used to drive the opening and closing structures to act synchronously to open the liquid inlet pipe 3 and the liquid outlet pipe 401, so as to reduce the difficulty of taking out the liquid (a connecting channel is established between the tank body 1 and the atmosphere to avoid the increase of the difficulty of taking out the liquid due to the pressure).

[0062] Then the liquid pumping structure and the one-way structure cooperate with each other to make the etching liquid enter the conduit 5 from the tank body 1 and enter the liquid outlet pipe 401 from the conduit 5, and finally be discharged from the liquid outlet pipe 401.

[0063] The one-way structure on the liquid inlet pipe 3 is used to close the liquid inlet pipe 3 after the opening and closing structure opens the liquid inlet pipe 3, so as to prevent external sundries from falling into the tank body 1 to pollute the etching liquid; when the airflow and the liquid enter the tank body 1 from the outside, the flow force of the airflow or the liquid can remove the closing state of the one-way structure on the liquid inlet pipe 3.

[0064] The one-way structure on the liquid outlet pipe 4 is used to prevent the backflow of the etching liquid, and the one-way structure on the liquid outlet pipe 4 is used to avoid the backflow of the air into the liquid outlet pipe 4; and when the one-way structure on the liquid outlet pipe 4 is in an open state, the one-way structure on the liquid outlet pipe 401 is in a closed state.

[0065] As a further embodiment of this utility model, the opening and closing structure includes a turntable 15 that is rotatably connected to the inlet pipe 3 and the outlet pipe 401 respectively; multiple sets of sealing plates 14 that cooperate with each other are rotatably installed on the inlet pipe 3 and the outlet pipe 401; a protruding post 1401 is installed on the sealing plate 14; and a sloping groove 1501 that slides and engages with the protruding post 1401 is provided on the turntable 15.

[0066] In this embodiment, when multiple sets of sealing plates 14 are in contact with each other and sealing, the inlet pipe 3 or the outlet pipe 401 is in a closed state; when multiple sets of sealing plates 14 are no longer in contact, the inlet pipe 3 and the outlet pipe 401 are in a conductive state.

[0067] When the turntable 15 rotates, it will drive the inclined groove 1501 to rotate. Through the sliding engagement of the inclined groove 1501 and the protruding column 1401, it will drive the sealing plate 14 to rotate on the inlet pipe 3 or the outlet pipe 401. When the protruding column 1401 slides from the end of the inclined groove 1501 near the sealing plate 14 to the end away from the sealing plate 14, multiple sets of sealing plates 14 will rotate away from each other to open the inlet pipe 3 or the outlet pipe 401. When the protruding column 1401 slides from the end away from the sealing plate 14 to the end near the sealing plate 14, multiple sets of sealing plates 14 will rotate and approach each other to abut against each other, thereby closing the inlet pipe 3 or the outlet pipe 401.

[0068] When the opening and closing structure opens the inlet pipe 3, it establishes a connection channel between the tank 1 and the atmosphere, which reduces the difficulty of the liquid pumping structure. When the opening and closing structure closes the inlet pipe 3, external pollutants cannot enter the tank 1, thus preventing the etching solution from being contaminated.

[0069] When the opening and closing structure opens the outlet pipe 401, the etching solution can flow out from the outlet pipe 401; when the opening and closing structure closes the outlet pipe 401, it can prevent the leakage of residual etching solution on the outlet pipe 401 after the liquid is taken out, thereby improving the safety of the device.

[0070] As a further embodiment of this utility model, the synchronization structure includes a rotating shaft 16 rotatably mounted on the can lid 2, on which a first gear 1601 and a first pulley 17 are mounted; a second pulley 18 is rotatably mounted on the liquid inlet pipe 3 and fixedly connected to one of the turntables 15; the first pulley 17 and the second pulley 18 are connected by a belt; and a second gear 19 that meshes with the first gear 1601 is mounted on the other turntable 15.

[0071] In this embodiment, rotating the shaft 16 drives the first pulley 17 and the first gear 1601 to rotate synchronously, thereby driving the second pulley 18 to rotate via the belt, and driving the second gear 19 to rotate via meshing, thereby driving the turntable 15 on the inlet pipe 3 and the turntable 15 on the outlet pipe 401 to rotate synchronously, thereby synchronously controlling the conduction state of the inlet pipe 3 and the outlet pipe 401.

[0072] The synchronization mechanism drives the two opening and closing structures to move synchronously, so as to simultaneously open or close the inlet pipe 3 and the outlet pipe 401. When closed, the tank 1 is in a sealed state, which can effectively reduce the evaporation efficiency of the etching solution and prevent the etching solution from being contaminated. When open, it can effectively reduce the difficulty of pumping liquid.

[0073] As a further embodiment of this utility model, the unidirectional structure includes a fixing ring 6 and a sealing ring 7 that are fixedly connected to the inlet pipe 3, the outlet pipe 4 and the outlet pipe 401 respectively; a sealing block 8 that can slide and fit into the fixing ring 6 and abut against the sealing ring 7 to seal; a return spring 9 is provided on the fixing ring 6, and the two ends of the return spring 9 abut against the sealing block 8 and the fixing ring 6 respectively.

[0074] In this embodiment, the elastic force of the return spring 9 causes the sealing block 8 and the sealing ring 7 to come into contact with each other, thereby hindering the flow of liquid or gas.

[0075] When the sealing block 8 is subjected to external force and the sealing block 8 tends to move towards the sealing ring 7, the sealing block 8 and the sealing ring 7 come into closer contact, thereby hindering the flow of liquid.

[0076] When the sealing block 8 is subjected to external force and moves toward the fixed ring 6, the return spring 9 will be compressed, the sealing block 8 will disengage from the sealing ring 7, and the liquid can flow smoothly.

[0077] By combining multiple unidirectional structures with the liquid extraction structure, the liquid extraction action can be performed more efficiently, and the etching solution inside the tank 1 can be prevented from being exposed to the outside air over a large area during the liquid extraction process. This reduces the evaporation efficiency of the etching solution and prevents harmful gases from flowing directly into the atmosphere and causing adverse effects.

[0078] As a further embodiment of this utility model, the liquid extraction structure is rotatably mounted on the connecting rod 10 on the drain pipe 4; a piston 13 is slidably and sealingly connected to the drain pipe 4, a push rod 12 is mounted on the piston 13, and a hinge 11 rotatably mounted on the push rod 12 is rotatably connected to the connecting rod 10.

[0079] In this embodiment, the connecting rod 10 is rotated to drive the push rod 12 to move via the hinge 11, thereby causing the piston 13 to slide in the drain pipe 4.

[0080] When the connecting rod 10 rotates away from the tank 1, the hinge 11 will drive the top rod 12 to slide towards the tank 1, thereby driving the piston 13 to slide towards the tank 1 in the drain pipe 4. During this process, the hinge 11, the connecting rod 10, and the top rod 12 all rotate together.

[0081] At this time, piston 13 will squeeze the etching solution in drain pipe 4, thereby pushing the sealing block 8 on drain pipe 4 to further contact the sealing ring 7, so as to prevent the etching solution from flowing back; and push the sealing block 8 on outlet pipe 401 to move towards the fixing ring 6, thereby opening outlet pipe 401, so that the etching solution in drain pipe 4 flows into outlet pipe 401, and flows from outlet pipe 401 into container.

[0082] When the connecting rod 10 rotates closer to the tank body 1, it drives the push rod 12 away from the tank body 1 through the hinge 11, thereby causing the piston 13 to slide away from the tank body 1 in the drain pipe 4. During this process, the hinge 11, the connecting rod 10, and the push rod 12 all rotate together.

[0083] At this time, the sliding of piston 13 will cause the etching solution to move synchronously, so as to draw the etching solution in tank 1 into conduit 5 and into drain pipe 4. The liquid flow will cause the sealing block 8 on drain pipe 4 to move towards fixed ring 6, compressing return spring 9, so that drain pipe 4 is in the conducting state; while the sealing block 8 on outlet pipe 401, under the elastic force of return spring 9, abuts against sealing ring 7, so that outlet pipe 401 is in the closed state, thereby preventing air from entering drain pipe 4 from outlet pipe 401 and affecting the liquid extraction efficiency.

[0084] When the amount of etching solution in tank 1 decreases, the force generated by the decrease in liquid level will drive the sealing block 8 on the liquid inlet pipe 3 to move towards the fixed ring 6, compressing the reset spring 9, so that air can enter the tank 1 to maintain the pressure inside the tank 1.

[0085] When the sealing block 8 is not subjected to other external forces, the elastic force of the return spring 9 will cause the sealing block 8 to contact the sealing ring 7, so that the tank 1 is in a sealed state.

[0086] As a further embodiment of this utility model, a flared mouth 502 is installed on one end of the conduit 5 near the drain pipe 4; and multiple sets of slots 501 are opened on the other end.

[0087] In this embodiment, the flared opening 502 is funnel-shaped, which can reduce the difficulty of sealing the connection between the conduit 5 and the drain pipe 4. In addition, a sealing gasket is installed on the drain pipe 4 to further improve the sealing performance and avoid the reduction of the liquid extraction efficiency due to poor sealing performance during the liquid extraction process.

[0088] As a further embodiment of this utility model, a handle 1001 is installed on the end of the connecting rod 10 away from the drain pipe 4.

[0089] In this embodiment, the handle 1001 reduces the difficulty of rotating the connecting rod 10, which helps to facilitate the smooth retrieval of liquid.

[0090] As a further embodiment of this utility model, a rotating rod 1602 is installed on the rotating shaft 16.

[0091] In this embodiment, rotating the rotating rod 1602 can drive the rotating shaft 16 to rotate, thereby synchronously controlling the conduction state of the liquid inlet pipe 3 and the liquid outlet pipe 401; and the rotating rod 1602 can reduce the difficulty of rotating the rotating shaft 16.

[0092] When the inlet pipe 3 and the outlet pipe 401 are in a closed state, the rotating rod 1602 faces the inlet pipe 3, which can effectively prevent the rotating rod 1602 from rotating due to collision during storage, thus making the opening and closing structure on the outlet pipe 401 and the inlet pipe 3 in a conductive state, thereby improving the safety of the device.

[0093] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. A sealed storage device for sulfuric acid and hydrogen peroxide etching solution, including a tank (1); Its features are, The tank body (1) is provided with a tank cover (2) that can be fixed and sealed by bolts. The can lid (2) is equipped with an inlet pipe (3) and a drain pipe (4); the drain pipe (4) is connected to an outlet pipe (401). The tank (1) is equipped with a conduit (5) that is sealed and connected to the drain pipe (4). Both the inlet pipe (3) and the outlet pipe (401) are provided with opening and closing structures; The can lid (2) is provided with a synchronization structure; The drain pipe (4) is provided with a liquid extraction structure; the inlet pipe (3), the drain pipe (4) and the outlet pipe (401) are all provided with a one-way structure; When the synchronous structure operates, it can drive the two opening and closing structures to operate, so as to synchronously open or close the liquid inlet pipe (3) and the liquid outlet pipe (401); after opening, the liquid extraction structure and the one-way structure cooperate with each other to extract the etching solution from the tank (1) to the liquid outlet pipe (401).

2. The sealed storage device for sulfuric acid and hydrogen peroxide etching solution according to claim 1, characterized in that, The opening and closing structure includes a turntable (15) that is rotatably connected to the inlet pipe (3) and the outlet pipe (401) respectively; multiple sets of sealing plates (14) that cooperate with each other are rotatably installed on the inlet pipe (3) and the outlet pipe (401); a protruding column (1401) is installed on the sealing plate (14); and a sloping groove (1501) that slides and fits into the protruding column (1401) is provided on the turntable (15).

3. The sealed storage device for sulfuric acid and hydrogen peroxide etching solution according to claim 2, characterized in that, The synchronization structure includes a rotating shaft (16) rotatably mounted on the can cover (2), on which a first gear (1601) and a first pulley (17) are mounted; a second pulley (18) fixedly connected to one of the turntables (15) is rotatably mounted on the inlet pipe (3); the first pulley (17) and the second pulley (18) are connected by a belt; and a second gear (19) meshing with the first gear (1601) is mounted on the other turntable (15).

4. The sealed storage device for sulfuric acid and hydrogen peroxide etching solution according to claim 3, characterized in that, The unidirectional structure includes a fixed ring (6) and a sealing ring (7) that are fixedly connected to the inlet pipe (3), the outlet pipe (4) and the outlet pipe (401) respectively; a sealing block (8) that can slide and fit into the fixed ring (6) and abut against the sealing ring (7) to seal; a return spring (9) is provided on the fixed ring (6), and the two ends of the return spring (9) abut against the sealing block (8) and the fixed ring (6) respectively.

5. The sealed storage device for sulfuric acid and hydrogen peroxide etching solution according to claim 4, characterized in that, The pumping structure is rotatably mounted on the connecting rod (10) on the drain pipe (4); a piston (13) is slidably and sealed on the drain pipe (4), a push rod (12) is mounted on the piston (13), and a hinge (11) rotatably mounted on the push rod (12) is rotatably connected to the connecting rod (10).

6. The sealed storage device for the sulfuric acid and hydrogen peroxide etching solution according to claim 1, characterized in that, The conduit (5) has a flared mouth (502) installed at one end near the drain pipe (4); and multiple slots (501) are opened at the other end.

7. The sealed storage device for sulfuric acid and hydrogen peroxide etching solution according to claim 5, characterized in that, A handle (1001) is installed on the end of the connecting rod (10) away from the drain pipe (4).

8. The sealed storage device for sulfuric acid and hydrogen peroxide etching solution according to claim 5, characterized in that, A rotating rod (1602) is mounted on the rotating shaft (16).

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