Sealing device for chromium-free passivation agent

Abstract

The utility model relates to passivation agent storage equipment technical field especially, it relates to a kind of chromium-free passivation agent sealed access device, including sealed tank body, further include: the liquid outlet pipe and gas guide pipe of the side wall of sealed tank body are penetrated;Wherein, one end of liquid outlet pipe is located in the outside of sealed tank body, the other end of liquid outlet pipe extends to sealed tank body inside and is close to sealed tank body bottom;Pressure assembly is equipped on gas guide pipe, pressure assembly is used to import the outside gas to sealed tank body inside by gas guide pipe and make its inside be in strong pressure state.The utility model can import the outside gas of sealed tank body into sealed tank body by gas guide pipe, improve the pressure in sealed tank body, chromium-free passivation agent in sealed tank body is pushed into the input end of liquid outlet pipe, and under the continuous action of pressure in sealed tank body, chromium-free passivation agent is output from the output end of liquid outlet pipe, and the use of chromium-free passivation agent in sealed tank body is completed.

Description

Technical Field

[0001] This utility model relates to a sealing and dispensing device, and more particularly to a chromium-free passivating agent sealing and dispensing device, belonging to the technical field of passivating agent storage equipment. Background Technology

[0002] Chromium-free passivating agents are chemical agents used for metal surface treatment. Their main function is to improve the surface properties of metals and provide corrosion protection. In addition, chromium-free passivating agents can also improve the wettability of metal surfaces, increase the adhesion between the coating and the metal, and enable the coating to adhere more firmly to the metal, thereby improving the overall durability.

[0003] In the prior art, patent CN222330600U discloses a chromium-free passivating agent sealed storage device, which includes a sealed storage tank. A metering drive mechanism for pushing material is disposed through the interior of the sealed storage tank. An automatic switching mechanism for controlling the discharge is disposed on one side of the sealed storage tank. The sealed storage tank includes a storage tank body and a viewing glass fixedly disposed on one side of the storage tank body. The metering drive mechanism includes a cylinder fixedly disposed at the lower end of the storage tank body and a push plate disposed at the lifting end of the cylinder. The push plate is fitted into the storage tank body.

[0004] Based on the aforementioned existing technologies and commonly used equipment in this field, it has been found that these devices primarily use a cylinder to drive an adjusting rod upwards, causing the push plate to move upwards. The push plate and the cylinder form a piston structure, allowing the chromium-free passivating agent inside the storage tank to be discharged through an automatic switching mechanism. To achieve the operation of this structure, the gap between the push plate and the inner wall of the storage tank needs to be sealed. This is generally achieved by adding rubber gaskets to achieve a sealing and sliding effect. However, rubber gaskets or other sealing methods have a very limited service life. When used improperly or when the service life is reached, the chromium-free passivating agent will flow out from the gap between the push plate and the inner wall of the tank, causing significant losses. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a chromium-free passivating agent sealing and dispensing device that uses pressure to dispensing the chromium-free passivating agent.

[0006] The present invention and the technical solution adopted to solve the above-mentioned technical problems are as follows:

[0007] A chromium-free passivating agent sealing and dispensing device includes a sealed container, and further includes: a liquid outlet pipe and a gas guide pipe penetrating the side wall of the sealed container; wherein, one end of the liquid outlet pipe is located outside the sealed container, and the other end of the liquid outlet pipe extends into the sealed container and is close to the bottom of the sealed container; the gas guide pipe is provided with a pressurizing component, which is used to introduce external gas into the sealed container through the gas guide pipe and make its interior under high pressure.

[0008] Furthermore, it also includes a one-way valve, which is disposed at the input end of the air guide pipe and the output end of the one-way valve is located inside the sealed tank.

[0009] Furthermore, a switch valve is connected to one end of the outlet pipe located outside the sealed tank.

[0010] Furthermore, the pressurization assembly includes a sleeve with a hollow structure and an opening at one end, a piston that is slidably and sealed to the inside of the sleeve, a push rod connected to the piston and extending through the end of the sleeve, and a second one-way valve disposed on the sleeve. The opening on the sleeve is connected to the input end of the air guide pipe.

[0011] Furthermore, the pressurization assembly includes an air pump disposed outside the sealed tank, the output end of which is connected to the input end of the air guide pipe.

[0012] Furthermore, the bottom of the tank is designed as a funnel-shaped structure, and the inlet end of the outlet pipe extends to the bottom of the funnel-shaped structure.

[0013] Furthermore, the one-way valve includes an air cylinder with openings at both ends, a sealing block disposed inside the air cylinder, a vent plate connected inside the air cylinder, a spring connecting the sealing block and the vent plate, and a guide rod connected to the sealing block. The sealing block abuts against one of the openings on the air cylinder, and the guide rod is slidably connected to the vent plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This application uses a gas inlet pipe to introduce external gas into the sealed container, increasing the internal pressure and pushing the chromium-free passivating agent inside the container to the inlet end of the outlet pipe. Under the continuous pressure inside the sealed container, the chromium-free passivating agent is then output from the outlet end of the outlet pipe, thus completing the extraction of the chromium-free passivating agent from the sealed container. Compared to using a push plate, this method only requires air pressure to extract the chromium-free passivating agent from the sealed container, resulting in a simple and durable structure that avoids the risk of leakage of the chromium-free passivating agent. Attached Figure Description

[0016] Figure 1This is a cross-sectional structural diagram of the first embodiment of the pressurization component of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the second embodiment of the pressurization component of this utility model;

[0018] Figure 3 Provided by this utility model Figure 2 Schematic diagram of a local structure in the middle;

[0019] Figure 4 This is a schematic diagram of the equiaxed cross-sectional structure of the one-way valve provided by this utility model.

[0020] In the diagram, 1. Sealed tank; 101. Inlet; 102. Sealing cover; 2. Liquid outlet pipe; 3. Air guide pipe; 401. Solenoid valve; 402. Manual valve; 501. Sleeve; 502. Piston; 503. Push rod; 504. Air pump; 6. One-way valve one; 601. Air cylinder; 602. Sealing block; 603. Vent plate; 604. Spring; 605. Guide rod; 7. One-way valve two. Detailed Implementation

[0021] The technical solution of this utility model will be described in more detail below with reference to the accompanying drawings and specific embodiments.

[0022] like Figures 1-4 As shown, the chromium-free passivating agent sealing and dispensing device provided in this embodiment includes a sealed container 1, with an inlet 101 at the top and a sealing cap 102 on the inlet 101. In use, by opening the sealing cap 102, the chromium-free passivating agent can be introduced into the sealed container 1 for storage. The device also includes:

[0023] The liquid outlet pipe 2 and the gas guide pipe 3 penetrate the side wall of the sealed tank 1;

[0024] One end of the liquid outlet pipe 2 is located outside the sealed tank 1, and the other end of the liquid outlet pipe 2 extends into the interior of the sealed tank 1 and is close to the bottom of the sealed tank 1; the gas guide pipe 3 is equipped with a pressurizing component, which is used to introduce external gas into the interior of the sealed tank 1 through the gas guide pipe 3 and make its interior a high-pressure state.

[0025] In use, the chromium-free passivating agent is stored inside the sealed container 1. When the chromium-free passivating agent needs to be retrieved, a pressurization component is used. An external gas source is connected through the gas pipe 3, and gas is introduced into the interior of the sealed container 1, increasing the pressure inside the sealed container 1. Under the pressure, the chromium-free passivating agent inside the sealed container 1 is pushed into the inlet end of the outlet pipe 2. Under the continuous action of the pressure inside the sealed container 1, the chromium-free passivating agent is output from the outlet end of the outlet pipe 2, completing the retrieval of the chromium-free passivating agent inside the sealed container 1. In this process, the chromium-free passivating agent inside the sealed container 1 can be retrieved simply by using air pressure. Compared with the method of using a push plate, this method has a simpler and more durable structure, and avoids leakage of the chromium-free passivating agent inside the sealed container 1.

[0026] Among them, such as Figure 4 As shown, in order to solve the problem of gas flowing in the reverse direction from the inside of the sealed tank 1 along the gas guide pipe 3, the device also includes a one-way valve 6. The one-way valve 6 is set on the input end of the gas guide pipe 3, and the output end of the one-way valve 6 is located inside the sealed tank 1.

[0027] Specifically, the one-way valve 6 includes an air cylinder 601 with openings at both ends, a sealing block 602 disposed inside the air cylinder 601, a vent plate 603 connected inside the air cylinder 601, a spring 604 connecting the sealing block 602 and the vent plate 603, and a guide rod 605 connected to the sealing block 602. The sealing block 602 abuts against one of the openings on the air cylinder 601, and the guide rod 605 is slidably connected to the vent plate 603. The two openings at the two ends of the air cylinder 601 are the input end and the output end, respectively. The inlet of the air cylinder 601 is connected to the outlet of the air pipe, and the sealing block 602 is pressed against the opening of the inlet. When gas is introduced from the inlet of the air cylinder 601, the gas pushes the sealing block 602 away from the opening of the air cylinder 601, and the gas enters the interior of the air cylinder 601 and flows out from the outlet of the air cylinder 601. When the gas stops being introduced, the sealing block 602 is pressed against the opening of the inlet again under the action of the spring 604 to prevent gas from being delivered from the outlet of the air cylinder 601 to the outlet of the air cylinder 601.

[0028] A switch valve is connected to one end of the outlet pipe 2 located outside the sealed tank 1. The switch valve can be an electrically driven solenoid valve 401 or a manually turned valve 402. Both the solenoid valve 401 and the manual valve are used to open and close the connection between the outlet pipe 2 and the outside. Both are existing technologies and will not be described in detail. The choice of valve is not limited and can be selected according to the actual situation.

[0029] Furthermore, such as Figure 2As shown, the first embodiment of the pressurizing component in this utility model is as follows: the pressurizing component includes a sleeve 501 with a hollow structure and an opening at one end, a piston 502 that is slidably connected to the inside of the sleeve 501, a push rod 503 connected to the piston 502 and passing through the end of the sleeve 501, and a second one-way valve 7 disposed on the sleeve 501. The second one-way valve 7 has the same structure as the first one-way valve 6, and the output end of the air cylinder 601 on the second one-way valve 7 is connected to the inside of the sleeve 501. The opening on the sleeve 501 is connected to the input end of the air guide pipe 3, and the sleeve 501 is fixedly installed on the outside of the sealed tank 1 so that it can maintain a stable state during use. In practice, the piston 502 moves back and forth within the sleeve 501 by manually pushing the push rod 503. As the piston 502 moves back and forth, the pressure inside the sleeve 501 changes repeatedly. When the push rod 503 is pulled, gas is drawn into the sleeve 501 from the one-way valve 7. When the push rod 503 is pushed, the gas is compressed and guided to the location of the one-way valve 6 and output from the output end of the one-way valve 6 into the sealed tank 1. During this process, the pressure inside the sealed tank 1 is increased manually to achieve the purpose of removing the chromium-free passivating agent.

[0030] In this embodiment, the structure used is manually driven, and in order to cooperate with the structure, the switch valve of the liquid outlet pipe 2 is a manual valve 402.

[0031] like Figure 1 As shown, the second embodiment of the pressurizing component in this utility model is as follows: the pressurizing component includes an air pump 504 disposed on the outside of the sealed tank 1. The output end of the air pump 504 is connected to the input end of the air guide pipe 3. The air pump 504 will introduce the external gas of the sealed tank 1 into the location of the one-way valve 6 through the air guide pipe 3, and then output it from the output end of the one-way valve 6 into the interior of the sealed tank 1. In this embodiment, the pressurizing component is electrically driven. To facilitate its compatibility with the structure, the switching valve used is a solenoid valve 401, so that the entire device is electrically driven. Compared with the first embodiment of the pressurizing component, the second embodiment of the pressurizing component is more labor-saving. The pressurization inside the sealed tank 1 can be achieved by electric drive to remove the chromium-free passivating agent. Compared with the second embodiment of the pressurizing component, the first embodiment of the pressurizing component reduces maintenance costs during use. In addition, when the sealed tank 1 is used in special locations, if it cannot be connected to electricity, the air pump 504 cannot be driven. At this time, manual drive is required to remove the chromium-free passivating agent. The real-time mode of the pressurizing component is selected according to the actual use scenario.

[0032] Furthermore, the bottom of the tank is designed as a funnel-shaped structure to facilitate the collection of chromium-free passivating agent at the bottom of the tank. The inlet end of the outlet pipe 2 extends to the bottom of the funnel-shaped structure to facilitate the intake of chromium-free passivating agent at the inlet end of the outlet pipe 2.

[0033] The foregoing description illustrates and describes preferred embodiments of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. Modifications and variations made by those skilled in the art without departing from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A chromium-free passivating agent sealing and dispensing device, comprising a sealed container (1), characterized in that, Also includes: The liquid outlet pipe (2) and the gas guide pipe (3) penetrate the side wall of the sealed tank (1); One end of the outlet pipe (2) is located outside the sealed tank (1), and the other end of the outlet pipe (2) extends into the sealed tank (1) and is close to the bottom of the sealed tank (1). The gas guide pipe (3) is equipped with a pressurization component, which is used to introduce external gas into the sealed tank (1) through the gas guide pipe (3).

2. The chromium-free passivating agent sealing and dispensing device according to claim 1, characterized in that: It also includes a one-way valve (6), which is located at the input end of the air duct (3) and the output end of the one-way valve is located inside the sealed tank (1).

3. The chromium-free passivator sealing and dispensing device according to claim 1, characterized in that: The outlet pipe (2) is connected to a switch valve at one end located outside the sealed tank (1).

4. The chromium-free passivator sealing and dispensing device according to claim 1, characterized in that: The pressurization assembly includes a sleeve (501) with a hollow structure and an opening at one end, a piston (502) that is sealed and slidably connected to the inside of the sleeve (501), a push rod (503) connected to the piston (502) and passing through the end of the sleeve (501), and a one-way valve (7) provided on the sleeve (501). The opening on the sleeve (501) is connected to the input end of the air guide pipe (3).

5. The chromium-free passivator sealing and dispensing device according to claim 1, characterized in that: The pressurization assembly includes an air pump (504) disposed outside the sealed tank (1), the output end of which is connected to the input end of the air guide pipe (3).

6. The chromium-free passivator sealing and dispensing device according to claim 1, characterized in that: The bottom of the tank is designed as a funnel-shaped structure, and the input end of the liquid outlet pipe (2) extends to the bottom of the funnel-shaped structure.

7. The chromium-free passivator sealing and dispensing device according to claim 2, characterized in that: The one-way valve (6) includes an air cylinder (601) with openings at both ends, a sealing block (602) disposed inside the air cylinder (601), a vent plate (603) connected inside the air cylinder (601), a spring (604) connecting the sealing block (602) and the vent plate (603), and a guide rod (605) connected to the sealing block (602). The sealing block (602) is in contact with one of the openings on the air cylinder (601), and the guide rod (605) is slidably connected to the vent plate (603).

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