A seal for a convenient oil resistant sealed can for rubber testing

Abstract

The utility model relates to the technical field of oil resistance test device, especially a kind of sealing device for the convenient oil resistance sealing tank of rubber test.The sealing device includes sealing tank cover and glass sealing tank body, sealing tank cover includes sealing cover top and the tinplate sealing cover wall fixed in the bottom surface of sealing cover top, the tinplate sealing cover wall includes elastic part and sealing part, elastic part is fixedly connected with sealing part and the bottom surface of sealing cover top, so that the maximum diameter of the outside of tinplate sealing cover wall is greater than the inner diameter of glass sealing tank body jar mouth, so that the outside is interference fit with the inner side of glass sealing tank body jar mouth.The utility model is by setting tinplate sealing cover wall structure, reaches the effect of sealing sealing cover and sealing tank, avoids the problem that rubber ring sealing is easily corroded, prolongs the service life of device.

Description

Technical Field

[0001] This utility model relates to the technical field of oil resistance testing devices, and in particular to a sealing device for a convenient oil-resistant sealed container used for rubber testing. Background Technology

[0002] Rubber is generally used to make components for sealing, sound insulation, shock absorption, and transportation. During use, it often comes into contact with various substances, including oil. When rubber is immersed in oil solvents, it may swell or its additives may dissolve. For example, rubber immersed in gasoline will soften and crack. Furthermore, additives in rubber can dissolve in oil, causing the rubber to lose its original elasticity, hardness, and heat resistance. Therefore, it is necessary to conduct oil resistance tests on samples made from different types of rubber to ensure their safety and reliability. According to GB / T 1690-2010 "Test Method for Liquid Resistance of Vulcanized Rubber or Thermoplastic Rubber", the rubber sample must be completely immersed in a test tank filled with oil, preventing air from entering the tank. The sample should be at least 5 mm from the inner wall of the container and at least 10 mm from the bottom and the top of the liquid surface. The sample should then be placed in a constant temperature chamber or liquid temperature control device and immersed for a certain test period before being removed for performance testing.

[0003] Currently, regarding existing technologies for rubber oil resistance testing, a small number of patents focus on the design of constant temperature equipment. For example, patent number CN 205538426 U, entitled "Constant Temperature Oil Bath Chamber for Rubber Oil Resistance Testing," proposes a dedicated constant temperature device with small footprint, good temperature control stability, and fire resistance. Most patents focus on the sealing performance of the test tank—since the sealing tank mainly relies on rubber sealing rings for sealing, these rings are prone to deformation or loss under high temperatures and corrosion from the test liquid. For instance, patent number CN 102967698 B, entitled "An Oil-Resistant Sealing Tank Device for Rubber Testing and Its Manufacturing Method," proposes an oil-resistant sealing tank device with a simple structure that improves the service life of the rubber sealing rings by setting up double sealing rings to improve the sealing performance. Patent number CN 205808893 U, entitled "A Novel Rubber Oil Resistance Testing Device," proposes using a shape memory alloy pre-tightening ring to replace the sealing ring to achieve a sealing effect. However, few technical personnel pay attention to and meet the technical requirements for the distance between the sample and the inner wall of the container, the bottom of the container, and the liquid surface in GB / T 1690-2010. If part of the sample is in close contact with the container wall during the test, it will cause discrepancies in subsequent performance test data.

[0004] Although the patent with patent number CN 205808893 U and patent title "A Novel Rubber Oil Resistance Testing Device" uses metal-to-metal connections to improve the sealing and safety of the oil-sealed container and places the sample into the metal frame to meet the required distance, the metal frame is welded to the lower end of the sealing cap and cannot be flexibly adjusted in position or according to the shape and size of the sample. Therefore, the existing sealed containers for rubber oil resistance testing are not convenient and flexible enough. Utility Model Content

[0005] To address the technical problems of complex rubber oil-resistant sealing tank devices, easy corrosion of rubber ring seals, difficulty in meeting liquid resistance test requirements, and inability to flexibly adapt to different sample sizes and shapes, this utility model provides a convenient sealing device for an oil-resistant sealing tank used in rubber testing.

[0006] The specific technical solution of this utility model is as follows:

[0007] A sealing device for a convenient oil-resistant sealed container for rubber testing is provided. The sealing device includes a sealed container lid and a glass sealed container body. The sealed container lid includes a sealing lid top and a tinplate sealing lid wall fixed to the bottom surface of the sealing lid top. The tinplate sealing lid wall includes an elastic part and a sealing part. The elastic part fixes the sealing part to the top and bottom surfaces of the sealing lid, such that the maximum diameter of the outer side of the tinplate sealing lid wall is larger than the inner diameter of the glass sealed container body opening, so that the outer side is interference-fitted with the inner side of the glass sealed container body opening.

[0008] The sealing part is an arc-shaped protrusion, a sinusoidal protrusion, or a serrated protrusion, and the tinplate between the sealing part and the top and bottom surfaces of the sealing cover is an elastic part.

[0009] The top and bottom surfaces of the sealing cover are fixed with metal support rings. The outer wall of the metal support ring is welded with an upturned tinplate sealing cover wall. The outer side of the upturned tinplate sealing cover wall is interference-fitted with the inner side of the glass sealing tank opening.

[0010] The tinplate sealing cover has rolled edges at the ends.

[0011] The sealing cover has evenly distributed functional holes on its top. A thermometer is placed in the central functional hole, and metal hooks that extend into the cavity of the glass sealing tank are placed in the circumferential functional holes. The metal hooks are fixedly connected to the sealing tank cover by a locking device. The locking device includes a fixing block and flange bolts. The fixing block is sleeved on the exposed end of the metal hook, and the flange bolts are provided between the fixing block and the metal hook.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention achieves a sealing effect between the sealing cap and the sealed container by setting a tinplate sealing cap wall structure, avoiding the problem of easy corrosion of rubber ring seals and extending the service life of the device; in addition, the device has a simple structure and is easy to operate. The sample is fixed to the metal hook suspension end, which can flexibly place rubber samples of any size and shape, avoiding the limitations of other structures of the sealed container. Attached Figure Description

[0014] Figure 1 This is a structural front view (1) of Embodiment 1 of the present utility model.

[0015] Figure 2 This is a structural front view (2) of Embodiment 1 of this utility model.

[0016] Figure 3 This is a structural front view (3) of Embodiment 1 of the present utility model.

[0017] Figure 4 This is a structural front view (1) of Embodiment 2 of the present invention.

[0018] Figure 5 This is a structural front view (2) of Embodiment 2 of the present utility model.

[0019] Figure 6 This is a structural front view (3) of Embodiment 2 of the present invention.

[0020] Figure 7 This is a top view of the structure of this utility model.

[0021] Figure 8 This is a partially enlarged schematic diagram of the locking device 4 of this utility model.

[0022] Among them, 1 is a sealed tank cover; 11 is a sealed cover top; 111 is a functional hole; 12 is a tinplate sealed cover wall; 121 is an elastic part; 122 is a sealing part; 13 is a metal support ring; 2 is a glass sealed tank body; 3 is a metal hook; 4 is a locking device; 41 is a flange bolt; 42 is a fixing block.

[0023] Specific implementation details

[0024] The present invention will now be described in detail with reference to the accompanying drawings.

[0025] Example 1

[0026] like Figure 1-3As shown, a sealing device for a convenient oil-resistant sealed container used for rubber testing is disclosed. The oil-resistant sealed container device includes a sealed container lid 1 and a glass sealed container body 2. The sealed container lid 1 includes a sealed lid top 11 and a tinplate sealed lid wall 12 fixed to the bottom surface of the sealed lid top 11. The tinplate sealed lid wall 12 includes an elastic part 121 and a sealing part 122. The elastic part 121 fixes the sealing part 122 to the bottom surface of the sealed lid top 11, so that the maximum diameter of the outer side of the tinplate sealed lid wall 12 is larger than the inner diameter of the opening of the glass sealed container body 2, so that the outer side is interference-fitted with the inner side of the opening of the glass sealed container body 2. Through the interference fit between the outer side of the tinplate lid wall and the inner side of the opening of the glass sealed container body, the sealing effect between the lid and the container body is achieved.

[0027] The sealing portion 122 is an arc-shaped protrusion, a sinusoidal protrusion, or a sawtooth protrusion, and the tinplate between the sealing portion 122 and the bottom surface of the sealing cover top 11 is an elastic portion 121.

[0028] The ends of the tinplate sealing cover 12 are rolled to prevent the edges from being too sharp and causing cuts.

[0029] like Figure 7 As shown, the top 11 of the sealing cap has evenly distributed functional holes 111. A thermometer is placed in the central functional hole 111, and metal hooks 3 extending into the cavity of the glass sealing container 2 are placed in the circumferential functional holes 111. The metal hooks 3 are fixedly connected to the sealing cap 1 by a locking device 4. Figure 8 As shown, the locking device 4 includes a fixing block 42 and a flange bolt 41. The fixing block 42 is sleeved on the exposed end of the metal hook 3, and the flange bolt 41 is provided between the fixing block 42 and the metal hook 3. By fixing the sample to the suspension end of the metal hook, rubber samples of any size and shape can be flexibly placed, avoiding the limitations of other structures of the sealed container.

[0030] Example 2

[0031] like Figure 3-6 As shown, the difference from Embodiment 1 is that a metal support ring 13 is fixed to the bottom surface of the sealing cap top 11, and an upturned tinplate sealing cap wall 12 is welded to the outer wall of the metal support ring 13. The outer side of the upturned tinplate sealing cap wall 12 is interference-fitted with the inner side of the opening of the glass sealing tank 2.

[0032] A convenient oil-resistant sealed container device for rubber testing, the specific operating steps are as follows: (1) Select the appropriate metal hook 3 according to the number of rubber samples; (2) Remove the sealed container cover 1 and inject the test medium oil into the glass sealed container 2; (3) Vertically fix the rubber sample to the suspension end of the metal hook 3; (4) Cover the sealed container cover 1, and expose the other end of the metal hook 3 through the circumferential functional hole 111 on the sealed container cover 1; (5) According to the requirements of GB / T 1690-2010 Test Method for Liquid Resistance of Vulcanized Rubber or Thermoplastic Rubber, the rubber sample needs to be completely immersed in the test container filled with oil to avoid air entering the container, and the sample should be at least 5 mm away from the inner wall of the container and at least 10 mm away from the bottom and the upper liquid surface of the container. mm, adjust the height of the metal hook 3 as required, and fit the fixing block 42 into the exposed end of the metal hook 3. Fix the fixing block 42 and the metal hook 3 with the flange bolt 41; (5) Place the thermometer in the center functional hole 111 of the sealed tank cover 1. Adjust according to the height of the medium oil to ensure that the mercury of the thermometer is located in the center of the glass sealed tank 2; (6) According to the experimental method requirements, start timing when the temperature reaches the experimental temperature; after the time is up, turn off all power switches, open the locking device 4 and the sealed tank cover 1 in sequence, take out the rubber sample, and wipe the liquid remaining on the sample surface with filter paper or non-shedding fabric; (7) After the test, clean the medium oil in the sealed tank 2.

[0033] In summary, this utility model provides a convenient oil-resistant sealing container device for rubber testing. By setting a tinplate sealing cover wall structure, this utility model achieves the effect of sealing the cover and the container, avoiding the problem of easy corrosion of the rubber ring seal and extending the service life of the device. In addition, the device has a simple structure and is easy to operate. The sample is fixed to the metal hook suspension end, which can flexibly place rubber samples of any size and shape, avoiding the limitations of other structures of the sealing container.

[0034] This utility model is not limited to the above-described preferred embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model.

Claims

1. A sealing device for a convenient oil-resistant sealed container for rubber testing, characterized in that, The sealing device includes a sealing lid (1) and a glass sealing container (2). The sealing lid (1) includes a sealing lid top (11) and a tinplate sealing lid wall (12) fixed to the bottom surface of the sealing lid top (11). The tinplate sealing lid wall (12) includes an elastic part (121) and a sealing part (122). The elastic part (121) fixes the sealing part (122) to the bottom surface of the sealing lid top (11), so that the maximum diameter of the outer side of the tinplate sealing lid wall (12) is greater than the inner diameter of the opening of the glass sealing container (2), so that the outer side is interference-fitted with the inner side of the opening of the glass sealing container (2).

2. The sealing device for a convenient oil-resistant sealed container for rubber testing as described in claim 1, characterized in that, The sealing part (122) is an arc-shaped protrusion, a sinusoidal protrusion, or a sawtooth protrusion, and the tinplate between the sealing part (122) and the bottom surface of the sealing cover (11) is an elastic part (121).

3. The sealing device for a convenient oil-resistant sealed container for rubber testing as described in claim 1, characterized in that, The sealing cap top (11) is fixed with a metal support ring (13), and the outer wall of the metal support ring (13) is welded with an upturned tinplate sealing cap wall (12). The outer side of the upturned tinplate sealing cap wall (12) is interference-fitted with the inner side of the glass sealing tank (2).

4. The sealing device for a convenient oil-resistant sealed container for rubber testing as described in claim 1, characterized in that, The end of the tinplate sealing cover (12) is rolled.

5. A sealing device for a convenient oil-resistant sealed container for rubber testing as described in any one of claims 1-4, characterized in that, The sealing cap (11) is provided with uniformly distributed functional holes (111). A thermometer is placed in the central functional hole (111), and a metal hook (3) is placed in the circumferential functional hole (111) and extends into the cavity of the glass sealing tank (2). The metal hook (3) is fixedly connected to the sealing tank cap (1) by a locking device (4). The locking device (4) includes a fixing block (42) and a flange bolt (41). The fixing block (42) is sleeved on the exposed end of the metal hook (3), and the flange bolt (41) is provided between the fixing block (42) and the metal hook (3).

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