Multi-sealing tube for preventing PCB liquid medicine from volatilizing

Abstract

The utility model relates to a multi-sealing tube for preventing PCB liquid medicine from volatilizing, which comprises a tube body, a tube opening is arranged on the upper surface of the tube body, a tube cap is arranged above the tube body, a first sealing assembly is arranged on the inner side of the tube cap, a second sealing assembly is arranged in the tube body, and the tube body is provided with a plurality of sealing holes. The first sealing assembly is provided with an internal thread on the inner side of the pipe cap, and an external thread is arranged on the outer surface of the pipe opening. According to the multi-sealing pipe capable of preventing the PCB liquid medicine from volatilizing, the first sealing assembly is arranged in the multi-sealing pipe capable of preventing the PCB liquid medicine from volatilizing, and through mutual cooperation of all structures in the first sealing assembly and arrangement of an internal thread, an external thread, a sealing plug, an annular sealing ring and an annular sealing groove, tight attachment of the pipe body and the pipe cap is achieved; the sealing performance of the joint of the tube body and the tube cap is improved, it is ensured that the tube cap is closed tightly, external air is prevented from entering the tube body, PCB liquid medicine can be effectively prevented from being volatilized, and the sealing performance of the sealing tube is improved on the whole.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB liquid medicine, in particular to a multi-sealed tube for preventing PCB liquid medicine from volatilizing. Background Art

[0002] PCB Chinese name is printed circuit board, also known as printed circuit board, is an important electronic component, the support of electronic components, and the carrier of electrical connection of electronic components. Because it is made by electronic printing, it is called printed circuit board. PCB solution is a special chemical solution commonly used in the electronics manufacturing industry. Its main components are organic solvents and surfactants. PCB solution is used to clean circuit boards. In the process of electronics manufacturing, solder, solder slag, oil, dust and other impurities will remain on the circuit board. These impurities will affect the performance and reliability of the circuit board. PCB solution has good solubility and cleaning ability, which can effectively remove these impurities and ensure the quality of the circuit board.

[0003] Chinese patent CN218143195U discloses a PCB chemical solution production and storage device. The utility model provides a PCB chemical solution production and storage device which is convenient for cleaning the storage tank, thereby enhancing practicality. The utility model comprises a storage tank body, a discharge pipe is arranged at the bottom of the storage tank body, a first switch is arranged on the discharge pipe, and an opening component is also included. The opening component is installed on the storage tank body. The opening component comprises a buckle cover, an annular sealing plug, two groups of first mounting plates, two groups of second mounting plates, two groups of mounting threaded rods and a feed pipe. The annular sealing plug is installed at the bottom end of the buckle cover, and the annular sealing plug is slidably connected to the inner wall of the storage tank body. The two groups of first mounting plates are installed at the left and right ends of the buckle cover, and the two groups of second mounting plates are installed at the left and right ends of the storage tank body. The two groups of first mounting plates are respectively provided with two groups of first insertion holes, and the two groups of second mounting plates are respectively provided with two groups of mounting threaded holes.

[0004] The above patent has the advantage of being easy to clean, but during use, the problem of PCB solution being easy to volatilize is not taken into consideration. The sealing is achieved by a sealing plug, which will be corroded by the PCB solution after long-term use, and will age and wear, thereby reducing the sealing effect and still causing the PCB solution to volatilize. Therefore, a multi-sealed tube that prevents PCB solution from volatilizing is proposed to solve the above problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a multi-sealed tube for preventing PCB chemicals from volatilizing, which has the advantage of good sealing performance and solves the problem that the PCB chemicals are easily volatilized without taking into account the problem that the PCB chemicals are easily volatilized during use. The sealing is achieved by a sealing plug, which will be corroded by the PCB chemicals after long-term use, and will become aged and worn, thereby reducing the sealing effect.

[0006] To achieve the above object, the utility model provides the following technical solution: a multi-sealed tube for preventing PCB liquid from volatilizing, comprising a tube body, a tube opening is arranged on the upper surface of the tube body, a tube cap is arranged above the tube body, a first sealing component is arranged on the inner side of the tube cap, and a second sealing component is arranged inside the tube body;

[0007] The first sealing component is arranged on the internal thread inside the pipe cap, the outer surface of the pipe mouth is arranged on the external thread, a sealing plug is fixed on the inner side of the pipe cap, an annular sealing ring is fixed on the lower surface of the pipe cap, and an annular sealing groove is opened on the upper surface of the pipe body.

[0008] Furthermore, the tube body and the tube mouth are integrally formed, and the tube body and the tube cap are integrally formed.

[0009] Furthermore, the diameter of the tube body is equal to the diameter of the tube cap, and the cross-sectional shape of the tube body is annular.

[0010] Furthermore, the internal thread is threadably connected to the external thread, and the size of the annular sealing ring is matched with the size of the annular sealing groove.

[0011] Furthermore, the second sealing component includes a middle sealing layer, an inner sealing layer and an outer sealing layer, wherein the middle sealing layer is arranged inside the pipe body, the inner sealing layer is fixed on the inner side of the middle sealing layer, and the outer sealing layer is fixed on the outer side of the middle sealing layer.

[0012] Furthermore, the middle sealing layer is a silicone layer, and the inner sealing layer is a polytetrafluoroethylene layer.

[0013] Furthermore, the outer sealing layer is a Hastelloy layer.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. The multi-sealed tube for preventing PCB liquid from volatilizing is provided with a first sealing component. Through the mutual cooperation between the structures in the first sealing component, by providing internal threads, external threads, sealing plugs, annular sealing rings and annular sealing grooves, a close fit between the tube body and the tube cap is achieved, the sealing performance of the connection between the tube body and the tube cap is improved, the tube cap is ensured to be tightly closed, and the outside air is prevented from entering the tube body, which can effectively prevent the PCB liquid from volatilizing, and the sealing performance of the sealed tube is improved as a whole.

[0016] 2. The multi-sealed tube for preventing PCB solution from volatilizing has a second sealing component arranged therein. Through the cooperation between the structures in the second sealing component, an intermediate sealing layer, an inner sealing layer and an outer sealing layer are arranged. The inner sealing layer adopts an anti-volatile material to slow down the volatilization speed of the solution, the intermediate sealing layer adopts a hygroscopic material to absorb the moisture released during the volatilization of the solution, and the outer sealing layer adopts a chemical corrosion-resistant material to provide additional chemical inertness and corrosion resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a cross-sectional view of the pipe body structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the first sealing component of the utility model;

[0020] Figure 4 This is a schematic diagram of the second sealing component of the utility model.

[0021] In the figure: 1 tube body, 2 tube mouth, 3 tube cap, 4 first sealing component, 401 internal thread, 402 external thread, 403 sealing plug, 404 annular sealing ring, 405 annular sealing groove, 5 second sealing component, 501 middle sealing layer, 502 internal sealing layer, 503 external sealing layer. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-2 In this embodiment, a multi-sealed tube for preventing PCB chemical from volatilizing comprises a tube body 1, a tube mouth 2 is arranged on the upper surface of the tube body 1, a tube cap 3 is arranged above the tube body 1, a first sealing component 4 is arranged on the inner side of the tube cap 3, and a second sealing component 5 is arranged inside the tube body 1.

[0024] The tube body 1 and the tube mouth 2 are integrally formed, and the tube body 1 and the tube cap 3 are integrally formed.

[0025] The diameter of the tube body 1 is equal to the diameter of the tube cap 3 , and the cross-sectional shape of the tube body 1 is annular.

[0026] It should be noted that the components of the present application are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0027] See also Figure 3 In order to improve the sealing performance of the connection between the tube body 1 and the tube cap 3, the first sealing component 4 in this embodiment is arranged on the internal thread 401 inside the tube cap 3, the outer surface of the pipe mouth 2 is provided with an external thread 402, a sealing plug 403 is fixed on the inner side of the tube cap 3, an annular sealing ring 404 is fixed on the lower surface of the tube cap 3, and an annular sealing groove 405 is opened on the upper surface of the tube body 1.

[0028] The internal thread 401 is threadedly connected to the external thread 402 , and the size of the annular sealing ring 404 matches the size of the annular sealing groove 405 .

[0029] Furthermore, the sealing plug 403 is made of fluororubber, which has excellent oil resistance, acid and alkali resistance and is often used to manufacture sealing parts.

[0030] See also Figure 4 In order to reduce the volatilization of PCB chemicals, the second sealing component 5 in this embodiment includes an intermediate sealing layer 501, an inner sealing layer 502 and an outer sealing layer 503. The intermediate sealing layer 501 is arranged inside the tube body 1, the inner sealing layer 502 is fixed on the inner side of the intermediate sealing layer 501, and the outer sealing layer 503 is fixed on the outer side of the intermediate sealing layer 501.

[0031] The middle sealing layer 501 is a silica gel layer. Silica gel is a hygroscopic material and is used in the present application to absorb moisture released during the volatilization of the PCB solution. The inner sealing layer 502 is a polytetrafluoroethylene layer. The inner sealing layer 502 is made of polytetrafluoroethylene material and is in direct contact with the PCB solution. The use of polytetrafluoroethylene in the inner sealing layer 502 helps to slow down the volatilization of the PCB solution. The outer sealing layer 503 is a Hastelloy layer. Hastelloy is a material with excellent corrosion resistance. It provides a solid and reliable barrier for the tube body 1, prevents the external environment from affecting the internal solution, and ensures that the PCB solution is not contaminated and volatilized.

[0032] The standard parts used in this application can all be purchased from the market, and special-shaped parts can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets and welding in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0033] If the present application discloses or involves components or structures that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except where it is obviously not possible to use an one-piece molding process).

[0034] The working principle of the above embodiment is:

[0035] (1) The inner sealing layer 502 is made of polytetrafluoroethylene and is in direct contact with the PCB solution. Polytetrafluoroethylene is a very inert material with excellent resistance to chemicals and high temperatures. It also has very low surface energy and low permeability to liquids. The use of polytetrafluoroethylene in the inner sealing layer 502 helps to slow down the volatilization of the PCB solution. The middle sealing layer 501 is made of silica gel. Silica gel is a hygroscopic material. In this application, it is used to absorb moisture released during the volatilization of the PCB solution. The outer sealing layer 503 is located on the outermost side of the tube body 1 and is made of Hastelloy. Hastelloy is a material with excellent corrosion resistance. It provides a solid and reliable barrier for the tube body 1 to prevent the external environment from affecting the internal solution and ensure that the PCB solution is not contaminated and volatilized.

[0036] (2) When the sealed tube is needed to store PCB solution, the PCB solution is first injected into the tube body 1 through the tube mouth 2. After the PCB solution is injected, the tube cap 3 is covered on the tube body 1 and the tube cap 3 starts to rotate. The rotation of the tube cap 3 causes the internal thread 401 on the inner side of the tube cap 3 to engage with the external thread 402 on the outer surface of the tube mouth 2. The rotation of the tube cap 3 drives it to move toward the tube body 1. When the lower surface of the tube cap 3 fits with the upper surface of the tube body 1, the sealing plug 403 blocks the tube mouth 2, and the annular sealing ring 404 is inserted into the annular sealing groove 405, thereby improving the sealing performance of the connection between the tube body 1 and the tube cap 3 and playing a role of multiple sealing.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0038] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A multi-sealed tube for preventing PCB solution from volatilizing, comprising a tube body (1), characterized in that: The upper surface of the tube body (1) is provided with a tube opening (2), a tube cap (3) is provided above the tube body (1), a first sealing component (4) is provided inside the tube cap (3), and a second sealing component (5) is provided inside the tube body (1); The first sealing component (4) is arranged on an internal thread (401) on the inner side of the pipe cap (3); an external thread (402) is arranged on the outer surface of the pipe mouth (2); a sealing plug (403) is fixed on the inner side of the pipe cap (3); an annular sealing ring (404) is fixed on the lower surface of the pipe cap (3); and an annular sealing groove (405) is provided on the upper surface of the pipe body (1).

2. The multi-sealed tube for preventing PCB solution from volatilizing according to claim 1, characterized in that: The tube body (1) and the tube mouth (2) are integrally formed.

3. The multi-sealed tube for preventing PCB solution from volatilizing according to claim 1, characterized in that: The diameter of the tube body (1) is equal to the diameter of the tube cap (3), and the cross-sectional shape of the tube body (1) is annular.

4. The multi-sealed tube for preventing PCB solution from volatilizing according to claim 1, characterized in that: The internal thread (401) is threadedly connected to the external thread (402), and the size of the annular sealing ring (404) is adapted to the size of the annular sealing groove (405).

5. The multi-sealed tube for preventing PCB solution from volatilizing according to claim 1, characterized in that: The second sealing assembly (5) comprises an intermediate sealing layer (501), an inner sealing layer (502) and an outer sealing layer (503); the intermediate sealing layer (501) is arranged inside the pipe body (1); the inner sealing layer (502) is fixed on the inner side of the intermediate sealing layer (501); and the outer sealing layer (503) is fixed on the outer side of the intermediate sealing layer (501).

6. The multi-sealed tube for preventing PCB solution from volatilizing according to claim 5, characterized in that: The middle sealing layer (501) is a silicone layer, and the inner sealing layer (502) is a polytetrafluoroethylene layer.

7. The multi-sealed tube for preventing PCB solution from volatilizing according to claim 5, characterized in that: The outer sealing layer (503) is a Hastelloy layer.

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