A sealing structure of a biosafety sealed tank

Abstract

The application discloses a sealing structure of a biosafety sealed tank and belongs to the technical field of sealing. The sealing structure comprises a tank body and a cover, the cover is screw-connected to the outside of the tank body, an annular groove is formed in the outer surface of the tank body, a sealing ring is clamped to the inner side of the annular groove, limiting sheets are arranged at the upper and lower ends of the sealing ring, a protruding sealing strip is arranged on the outer surface of the sealing ring, a limiting groove is formed in the outer surface of the tank body and is communicated with the annular groove, an L-shaped groove is formed in the inner side of the limiting sheet and extends into the sealing ring, a circular groove is formed in the top of the limiting sheet and is communicated with the L-shaped groove, a vertical groove is formed in the inner side of the sealing ring, and a horizontal groove is formed in the inner side of the sealing ring. Through the cooperation among the annular groove, the sealing ring and the protruding sealing strip, multiple seals can be formed between the cover and the tank body after the cover is connected to the tank body, so that the connection sealing performance of the sealed tank is better.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sealing, in particular to a sealing structure of a biosafety sealing tank. BACKGROUND

[0002] The biosafety sealing tank is a tank body for storing and transporting biological materials.

[0003] In actual use, the sealing property of the biosafety sealing tank has high requirements. The common sealing structure of the biosafety sealing tank on the market is to open an embedded groove in the inside of the cover, and then embed a sealing ring in the embedded groove. Such a sealing structure has high leakage rate and poor sealing property in actual use. In the process of tightening the cover, the mutual rotation between the cover and the tank body causes the top end and the bottom end of the sealing ring to be subjected to rotational forces in different directions, so that the sealing ring is easily twisted. Therefore, the sealing property of the sealing tank is poor in use, which cannot meet the needs of actual use. SUMMARY

[0004] The present application aims to provide a sealing structure of a biosafety sealing tank to solve the problems in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a sealing structure of a biosafety sealing tank, comprising a tank body and a cover, wherein the cover is threadedly connected to the outside of the tank body, an annular groove is opened on the outer surface of the tank body, a sealing ring is clamped on the inner side of the annular groove, limiting pieces are arranged at the upper and lower ends of the sealing ring, a protruding sealing strip is arranged on the outer surface of the sealing ring, a limiting groove is opened on the outer surface of the tank body and communicates with the annular groove, an L-shaped groove is opened in the inner side of the limiting piece and extends into the sealing ring, a circular groove is opened on the top of the limiting piece and communicates with the L-shaped groove, a vertical groove is opened on the inner side of the sealing ring, a horizontal groove is opened on the inner side of the sealing ring, a communicating groove is opened on the inner side of the sealing ring, and a sealing piece is arranged in the inside of the circular groove.

[0006] As a further scheme of the present application: the limiting pieces are annular in shape and clamped in the inside of the limiting groove, which can effectively increase the contact area of the sealing ring and the tank body, so that the use stability of the sealing ring is better and the phenomenon of twisting is less likely to occur in actual use.

[0007] As a further scheme of the present application: the depth of the limiting groove is twice the thickness of the limiting piece, so that the limiting piece can completely fill the limiting groove, so that the contact area of the limiting piece and the limiting groove can be in the maximum state, and the contact friction resistance between the limiting piece and the limiting groove can be maximized.

[0008] As a further scheme of the present application: wherein the number of the convex sealing strip is at least two, and is sequentially distributed from top to bottom on the outer surface of the sealing ring, the position of the convex sealing strip corresponds to the cover, so that the cover can be extruded with the convex sealing strip after being covered, so that the convex sealing strip can be in close contact with the inner wall of the cover, thereby effectively improving the sealing performance of the sealed tank.

[0009] As a further scheme of the present application: wherein the top end of the L-shaped groove is circular, the diameter of the circular groove is greater than the diameter of the top end of the L-shaped groove, and the number of the L-shaped grooves is at least six and is equally angularly distributed at the top end of the limiting sheet.

[0010] As a further scheme of the present application: wherein the size of the sealing sheet corresponds to the circular groove, the thickness of the sealing sheet corresponds to the circular groove, the sealing sheet is fixedly connected to the inner wall of the circular groove through one side, and the connection part of the sealing sheet and the inner wall of the circular groove is one side of the local part, the length of which is one fifth of the circumference of the sealing sheet, so that the sealing sheet can be raised upward when exhausting in the L-shaped groove, and can close the top of the L-shaped groove when inhaling, so that the sealing ring can be stably adsorbed and fixed on the tank body.

[0011] As a further scheme of the present application: wherein the communication groove is circular, the number of the vertical grooves is at least six and is equally angularly distributed in the interior of the sealing ring, the number of the vertical grooves in each group is two and is symmetrically distributed at the upper and lower ends of the communication groove, and the vertical grooves are communicated with the communication groove to increase the adsorption and fixation area with the inner wall of the annular groove.

[0012] As a further scheme of the present application: wherein the side of the vertical groove away from the communication groove penetrates the surface of the sealing ring, and can cooperate with the horizontal groove, so that the adsorption and fixation area of the sealing ring and the inner wall of the annular groove is greatly increased.

[0013] As a further scheme of the present application: wherein the number of the horizontal grooves is at least six and is equally angularly distributed in the interior of the sealing ring, the horizontal grooves are communicated with the communication groove, and the side away from the communication groove penetrates the surface of the sealing ring.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] 1. The sealing structure of the biological safety sealing tank, through the cooperation of the annular groove, the sealing ring and the convex sealing strip, the cover and the tank body can form multiple seals therebetween after being connected, thereby improving the connection sealing performance of the sealed tank.

[0016] 2. The sealing structure of the biological safety sealed tank, through the cooperation between the L-shaped groove, the vertical groove, the horizontal groove, the communication groove and the sealing sheet, the sealing ring can be stably fixed in the annular groove during actual use, and through the cooperation between the limiting sheet and the limiting groove, the anti-distortion performance of the sealing ring can be greatly improved, so that the stability of the sealing ring during actual use is better, so that the sealing ring, the convex sealing strip and the sealing tank can be cooperated to better seal the sealing tank, the sealing property of the sealing tank is better, and the sealing stability is also better, which can meet the needs of actual use. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the three-dimensional structure of the present application;

[0018] Figure 2 is a schematic diagram of the sealing ring structure of the present application;

[0019] Figure 3 is a schematic diagram of the sealing ring structure of the present application; Figure 2 is an enlarged structure schematic diagram of A in the present application;

[0020] Figure 4 is a schematic diagram of the internal structure of the tank body of the present application;

[0021] Figure 5 is a schematic diagram of the internal structure of the tank body of the present application; Figure 4

[0022] Figure 6 is an enlarged structure schematic diagram of B in the present application; Figure 5

[0023] Figure 7 is an enlarged structure schematic diagram of C in the present application; Figure 5

[0024] Figure 8 is a schematic diagram of the annular groove structure of the present application.

[0025] The corresponding relationship between the annotations of the figures in the drawings and the component names is as follows:

[0026] 1, tank body; 2, cover; 3, annular groove; 4, sealing ring; 5, limiting sheet; 6, convex sealing strip; 7, limiting groove; 8, L-shaped groove; 9, round groove; 10, vertical groove; 11, horizontal groove; 12, communication groove; 13, sealing sheet. DETAILED DESCRIPTION

[0027] As Figures 1-8 ​​​As shown, a sealing structure of a biological safety sealed tank includes a tank body 1, a cover 2, and the cover 2 is threadedly connected outside the tank body 1, an annular groove 3 is formed on the outer surface of the tank body 1, a sealing ring 4 is clamped on the inner side of the annular groove 3, limit pieces 5 are arranged at the upper and lower ends of the sealing ring 4, a protruding sealing strip 6 is arranged on the outer surface of the sealing ring 4, a limit groove 7 is formed on the outer surface of the tank body 1 and is in communication with the annular groove 3, an L-shaped groove 8 is formed on the inner side of the limit piece 5 and extends into the sealing ring 4, a circular groove 9 is formed on the top of the limit piece 5 and is in communication with the L-shaped groove 8, a vertical groove 10 is formed on the inner side of the sealing ring 4, a horizontal groove 11 is formed on the inner side of the sealing ring 4, a communication groove 12 is formed on the inner side of the sealing ring 4, and a sealing piece 13 is arranged in the circular groove 9.

[0028] In the embodiment, when the sealing ring 4 is installed, the operator embeds it in the annular groove 3, and then manually presses the outer side of the sealing ring 4, so that the sealing ring 4 is deformed to a certain extent and the air in the sealing ring 4 is extruded, so that the air pressure in the vertical groove 10, the horizontal groove 11 and the communication groove 12 in the sealing ring 4 increases and flows upward along the L-shaped groove 8, so that the air pressure in the L-shaped groove 8 increases and extrudes the sealing piece 13 outward, so that the sealing piece 13 can be flipped up, so that the top end of the L-shaped groove 8 is open, so that the gas in the sealing ring 4 can be discharged, and when the user releases the sealing ring 4, under the action of the restoring force of the sealing ring 4, suction is generated on the side of the vertical groove 10, the horizontal groove 11 and the L-shaped groove 8 which is in communication with the external environment, and when suction is generated at the top end of the L-shaped groove 8, the sealing piece 13 is reversely rotated and adheres to the surface of the circular groove 9, so as to close the top end of the L-shaped groove 8, so that the L-shaped groove 8 cannot inhale air at the port. Since the sealing ring 4 is clamped in the annular groove 3 and tightly adheres to the inner wall thereof, under the action of the negative pressure in the horizontal groove 10, the vertical groove 11 and the communication groove 12, the sealing ring 4 can be stably adsorbed and fixed in the annular groove 3, so that the stability of the sealing ring 4 in actual use is better, and after the sealing ring 4 is installed, the limit piece 5 arranged outside the sealing ring 4 tightly adheres to the inside of the limit groove 7 and completely fills the limit groove 7, so that when the sealing ring 4 is subjected to a horizontal torsional force, the torsional resistance of the sealing ring 4 can be effectively increased, so that the stability of the sealing ring 4 in actual use is better and it is not easy to be twisted to cause poor sealing.

[0029] It should be noted that the materials of the tank body 1 and the cover 2 are both food-grade plastic, which has the advantages of high and low temperature resistance, high strength and the like, and under the cooperation of the tank body 1, the cover 2 and the sealing ring 4, the liquid in the tank body can be protected from leakage under the conditions of 1.2 meters in height, -40℃-55℃ in temperature and 95KPa in pressure.

[0030] In order to ensure the stability of the sealing ring 4 in the process of use, it is also necessary to supplement that the sealing ring 4 is made of silica gel material as a whole, the hardness of the local part near the cover 2 is relatively soft, and the part for clamping is relatively hard, and the thickness value of the soft part is the distance value between the surface near the cover 2 and the position 2mm away from the inner wall of the L-shaped groove 8. In addition, the material of the limiting sheet 5 is the same as that of the relatively hard part of the sealing ring 4, which is a relatively hard silica gel material. In this way, the sealing ring 4 can be deformed to a certain extent when it is pressed, which can ensure the discharge of gas in the horizontal groove 11 and vertical groove 10, and can also ensure that the sealing ring 4 will not be deformed when the cover 2 is normally screwed, so that the sealing ring 4 can be stably connected and fixed in the annular groove 3.

[0031] The limiting sheet 5 is in the shape of a circular ring and is clamped in the limiting groove 7, which can effectively increase the contact area between the sealing ring 4 and the tank body 1, so that the stability of the sealing ring 4 is better in actual use, and the phenomenon of distortion is not easy to occur.

[0032] It should be noted that the material of the limiting sheet 5 is a relatively hard silica gel material, and it is clamped in the limiting groove 7. During the rotation of the cover 2, the contact area is increased by the limiting sheet 5, so that part of the rotating force can be transmitted to the limiting sheet 5 when the sealing ring 4 is subjected to the rotating force. The limiting sheet 5 has a large contact area and a large frictional resistance between the limiting groove 7 and the tank body 1, so that part of the rotating force acting on the sealing ring 4 can be offset by the limiting sheet 5, so that the sealing ring 4 is not easy to distort in actual use.

[0033] The depth of the limiting groove 7 is twice the thickness of the limiting sheet 5, so that the limiting sheet 5 can completely fill the limiting groove 7, so that the contact area between the limiting sheet 5 and the limiting groove 7 can be in the maximum state, and the contact friction resistance between the limiting sheet 5 and the limiting groove 7 can be maximized.

[0034] The number of the convex sealing strips 6 is at least two, and they are distributed in sequence from top to bottom on the outer surface of the sealing ring 4. The position of the convex sealing strip 6 corresponds to the cover 2, so that the cover 2 can be pressed after being installed, and the convex sealing strip 6 can be in close contact with the inner wall of the cover 2, so that the sealing property of the sealed tank can be effectively improved.

[0035] It should be noted that the number of the convex sealing strips 6 can be two or more. Through the cooperation of multiple convex sealing strips 6, multiple layers of sealing can be formed between the cover 2 and the cover 2 after installation, so that the sealing property of the sealed tank after installation of the cover 2 is better, and the leakage of the liquid in the tank can be effectively avoided.

[0036] The top end of the L-shaped groove 8 is circular, the diameter of the circular groove 9 is greater than the diameter of the circular top end of the L-shaped groove 8, the number of the L-shaped grooves 8 is at least six, and the L-shaped grooves 8 are distributed at equal angles at the top end of the limiting sheet 5.

[0037] The size of the sealing sheet 13 corresponds to the circular groove 9, the thickness of the sealing sheet 13 corresponds to the circular groove 9, the sealing sheet 13 is fixedly connected to the inner wall of the circular groove 9 on one side, the connection part of the sealing sheet 13 and the inner wall of the circular groove 9 is a local part on one side, and the length of the connection part is one-fifth of the circumference of the sealing sheet 13, so that the sealing sheet 13 can be tilted upward when exhausting gas in the L-shaped groove 8, and can seal the top of the L-shaped groove 8 when inhaling, so that the sealing ring 4 can be stably adsorbed and fixed on the tank body 1.

[0038] The communication groove 12 is a circular ring, the number of the vertical grooves 10 is at least six groups, and the vertical grooves 10 are distributed at equal angles in the sealing ring 4, the number of the vertical grooves 10 in each group is two, and the vertical grooves 10 are symmetrically distributed at the upper and lower ends of the communication groove 12, and the vertical grooves 10 are connected with the communication groove 12. The side of the vertical groove 10 away from the communication groove 12 penetrates the surface of the sealing ring 4, and can cooperate with the horizontal groove 11, so that the adsorption and fixation area of the sealing ring 4 and the inner wall of the annular groove 3 is greatly increased. The number of the horizontal grooves 11 is at least six, and the horizontal grooves 11 are distributed at equal angles in the sealing ring 4, the horizontal grooves 11 are connected with the communication groove 12, and the side away from the communication groove 12 penetrates the surface of the sealing ring 4.

[0039] It should be noted that the cooperation between the multiple vertical grooves 10, horizontal grooves 11 and L-shaped grooves 8 can make the exhaust efficiency of the gas in the sealing ring 4 higher, and the adsorption points more and more uniform, so that the sealing ring 4 can be stably connected and fixed in the annular groove 3.

[0040] As described above, in actual use, the cooperation between the sealing ring 4 clamped in the annular groove 3 on the side of the tank body 1 and the multiple protruding sealing strips 6 arranged on the surface thereof can form multiple seals between the cover 2 and the tank body 1 after the cover 2 is installed, so that the contact sealing between the sealing ring 4 and the cover 2 is better.

[0041] When the sealing ring 4 is installed, the operator embeds it inside the annular groove 3, and then manually presses the outer side of the sealing ring 4, so that the sealing ring 4 is deformed to a certain extent and the air inside is extruded, so that the air pressure in the vertical groove 10, the horizontal groove 11 and the communication groove 12 inside the sealing ring 4 increases and flows upward along the L-shaped groove 8, so that the air pressure inside the L-shaped groove 8 increases and extrudes the sealing piece 13 outward, so that the sealing piece 13 can be flipped up, so that the top end of the L-shaped groove 8 is open, so that the air inside the sealing ring 4 can be discharged. When the user releases the sealing ring 4, under the action of the restoring force of the sealing ring 4, suction is generated on the side of the horizontal groove 10, the vertical groove 11 and the L-shaped groove 8 which communicates with the external environment. When the top end of the L-shaped groove 8 generates suction, the sealing piece 13 will rotate in the opposite direction and be seated on the surface of the circular groove 9, closing the top end of the L-shaped groove 8, so that the L-shaped groove 8 cannot inhale at the port. Since the sealing ring 4 is clamped inside the annular groove 3 and tightly adheres to the inner wall, under the action of negative pressure in the horizontal groove 10, the vertical groove 11 and the communication groove 12, the sealing ring 4 can be stably adsorbed and fixed inside the annular groove 3, so that the stability of the sealing ring 4 in actual use is better. After the sealing ring 4 is installed, the limiting piece 5 arranged outside the sealing ring 4 tightly adheres to the inside of the limiting groove 7 and completely fills the limiting groove 7, so that when the sealing ring 4 is subjected to a horizontal torsional force, the torsional resistance of the sealing ring 4 can be effectively increased, so that the stability of the sealing ring 4 in actual use is better, and the sealing ring 4 is not easy to twist, so that the sealing of the sealing tank is better and the sealing stability is better under the mutual action of the convex sealing strip 6 and the sealing ring 4.

[0042] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can make equivalent replacements or changes within the technical range disclosed by the present application according to the technical solution and inventive concept of the present application, which should be covered within the protection scope of the present application.

Claims

1. A sealing structure of a biosafety sealed canister including a can body, a lid, and the lid is threadedly coupled to the outside of the can body, characterized in that, The outer surface of the tank body is provided with an annular groove, the inner side of the annular groove is clamped with a sealing ring, the upper and lower ends of the sealing ring are provided with limiting sheets, the outer surface of the sealing ring is provided with a convex sealing strip, the outer surface of the tank body is provided with a limiting groove in communication with the annular groove, the inner side of the limiting sheet is provided with an L-shaped groove deep into the inside of the sealing ring, the top of the limiting sheet is provided with a circular groove in communication with the L-shaped groove, the inner side of the sealing ring is provided with a vertical groove, the inner side of the sealing ring is provided with a horizontal groove, the inner side of the sealing ring is provided with a communication groove, and the inside of the circular groove is provided with a sealing sheet; the shape of the limiting sheet is circular, and is clamped in the inside of the limiting groove; the depth value of the limiting groove is twice the thickness value of the limiting sheet; The number of convex sealing strips is at least two, and they are distributed on the outer surface of the sealing ring from top to bottom, and the positions of the convex sealing strips correspond to the lid; The communication groove is circular, the number of vertical grooves is at least six groups, and they are distributed at equal angles in the inside of the sealing ring, the number of vertical grooves in each group is two, and they are symmetrically distributed at the upper and lower ends of the communication groove, and the vertical grooves are in communication with the communication groove; The side of the vertical groove away from the communication groove penetrates the surface of the sealing ring; The number of horizontal grooves is at least six, and they are distributed at equal angles in the inside of the sealing ring, the horizontal grooves are in communication with the communication groove, and the side away from the communication groove penetrates the surface of the sealing ring.

2. The seal of a biosafety sealed tank according to claim 1, wherein, The top end of the L-shaped groove is circular, the diameter value of the circular groove is greater than the diameter value of the top end of the L-shaped groove, the number of L-shaped grooves is at least six, and they are distributed at equal angles at the top end of the limiting sheet.

3. The seal of a biosafety sealed tank according to claim 2, wherein, The size value of the sealing sheet corresponds to the circular groove, the thickness value of the sealing sheet corresponds to the circular groove, and the sealing sheet is fixedly connected with the inner wall of the circular groove through one side.

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