A hazardous chemical leakage prevention device

Abstract

The utility model discloses a dangerous chemical leak -proof device relates to dangerous chemical leak -proof technical field, including shell subassembly, including shell main part, the outer ring of shell main part top is equipped with first water seal groove, the inner ring of shell main part top is equipped with second water seal groove, and, cover plate subassembly, including the cover plate main part of setting in shell main part top, the outer ring of cover plate main part bottom is fixed with outer baffle, the inner ring of cover plate main part bottom is fixed with inner baffle. The utility model has the beneficial effects that through support plate and air bag, utilize the mode of air bag exhaust, make the sealing membrane swell, and then make the water in first water seal groove enter second water seal groove, reach the effect of secondary water seal, even if the outer water seal is ineffective because of evaporation or pollution, the inner water seal can still maintain the sealing effect, after closing the cover plate main part, the clamping block is automatically clamped into the locking of the clamping groove, and the protection effect of the device is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of hazardous chemical leak prevention technology, and in particular to a hazardous chemical leak prevention device. Background Technology

[0002] If hazardous chemicals leak during production, storage, and transportation, they can easily cause major safety accidents such as fires, explosions, and poisoning, posing serious threats to human health and the environment. The safe storage of hazardous chemicals in laboratories is particularly important. Among these technologies, water-sealed leak-proof storage is a technique that uses a liquid (usually water) as a sealing medium to prevent the leakage of hazardous chemicals.

[0003] Existing water seal leak prevention devices for hazardous chemicals typically only have a single-layer water seal structure. After long-term use, the water is prone to evaporation, requiring frequent water replenishment and maintenance. The sealing reliability is insufficient, making it unable to cope with sudden leaks. Furthermore, some impurities may enter the device through the water, resulting in contamination of the hazardous chemicals and affecting their purity, thus reducing the effectiveness of chemical storage. Utility Model Content

[0004] In view of the problems existing in the above-mentioned hazardous chemical spill prevention devices, this utility model is proposed.

[0005] Therefore, the problem that this utility model aims to solve is that the water seal structure is usually only set with a single layer. After long-term use, the water is easy to evaporate and requires frequent water replenishment and maintenance. In addition, some impurities may enter the device through the water, resulting in impurities inside the hazardous chemicals, which will affect the purity of the hazardous chemicals and reduce the storage effect of the chemicals.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a hazardous chemical leak prevention device, comprising,

[0007] The housing assembly includes a housing body, wherein a first water seal groove is formed on the outer ring of the top of the housing body, and a second water seal groove is formed on the inner ring of the top of the housing body; and,

[0008] The cover assembly includes a cover body disposed on the top of the outer shell body, an outer retaining ring fixed to the outer ring of the bottom of the cover body, an inner retaining ring fixed to the inner ring of the bottom of the cover body, a groove formed on the outer ring of the outer retaining ring, and a sealing membrane embedded inside the outer shell body.

[0009] The sealing assembly includes a support plate disposed inside the main body of the outer shell, an airbag fixed to the bottom of the support plate, connecting pipes fixed to both sides of the airbag, an air collecting pipe fixed to one end of the connecting pipe, an air venting pipe fixed to one end of the air collecting pipe, a snap-fit ​​fitting provided at one end of the air venting pipe, and a locking fitting provided at the top of the air venting pipe.

[0010] As a preferred embodiment of the hazardous chemical leak prevention device of this utility model, the inner cavity of the outer shell body is provided with a sliding groove, the top of the cover plate body is fixed with a handle, the inside of the cover plate body is slidably connected with a limit rod, and one end of the limit rod is fixed with a sealing plate.

[0011] As a preferred embodiment of the hazardous chemical leak prevention device of this utility model, the outer ring of the limiting rod is provided with a first spring, one end of the first spring is fixed to the surface of the sealing plate, and the other end of the first spring is fixed to the surface of the cover plate body.

[0012] In a preferred embodiment of the hazardous chemical leak prevention device of this utility model, the outer ring of the support plate is fixed with a slider, and the slider is slidably connected to the inner wall of the groove.

[0013] In a preferred embodiment of the hazardous chemical leak prevention device of this utility model, the snap-fit ​​component includes a branch pipe fixed to the outer ring of the vent pipe, a movable column is slidably connected to the inner cavity of the branch pipe, and a tension spring is fixed to one end of the movable column.

[0014] As a preferred embodiment of the hazardous chemical leak prevention device of this utility model, one end of the tension spring is fixed to the inner wall of the vent pipe, the other end of the movable column is fixed with a locking block, the surface of the vent pipe is provided with air holes, and the interior of the outer shell body is fixed with a gas storage chamber.

[0015] In a preferred embodiment of the hazardous chemical leak prevention device of this utility model, the sealing membrane is annular in shape, the gas storage chamber is located outside the sealing membrane, and the vent is located inside the gas storage chamber.

[0016] In a preferred embodiment of the hazardous chemical leak prevention device of this utility model, the locking component includes a baffle that is slidably connected to the inner cavity of the vent pipe, a fixing rod is fixed to the top of the baffle, a pressure plate is fixed to the top of the fixing rod, and a second spring is fixed to the outer ring of the fixing rod.

[0017] In a preferred embodiment of the hazardous chemical leak prevention device of this utility model, one end of the second spring is fixed to the bottom of the pressure plate, the other end of the second spring is fixed to the top of the outer shell body, and both sides of the pressure plate are provided with blocks.

[0018] In a preferred embodiment of the hazardous chemical leak prevention device of this utility model, the bottom of the stop block is fixed to the top of the outer shell body, and a groove is provided at the bottom of the stop block, with the pressure plate cooperating with the groove.

[0019] The beneficial effects of this utility model are as follows: By using the support plate and airbag, and utilizing the airbag to release air, when the hazardous chemical storage container is placed on the support plate, gravity compresses the airbag, causing the gas inside to push the movable column and the locking block to move. Then, the gas is discharged into the gas storage chamber through the air hole, causing the sealing membrane to expand, thereby allowing the water inside the first water seal tank to enter the second water seal tank, achieving the effect of secondary water sealing. Even if the outer water seal fails due to evaporation or contamination, the inner water seal can still maintain the sealing effect. After the cover plate body is closed, the locking block automatically engages with the locking slot to lock, greatly improving the protective effect of the device. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural diagram of a hazardous chemical spill prevention device.

[0022] Figure 2 This is a cross-sectional view of a hazardous chemical spill prevention device.

[0023] Figure 3 For hazardous chemical spill prevention devices Figure 2 A magnified view of A in the middle.

[0024] Figure 4 For hazardous chemical spill prevention devices Figure 2 A magnified view of B in the middle.

[0025] Figure 5 This is a partial sectional exploded view of a hazardous chemical spill prevention device.

[0026] Figure 6 This is a structural diagram of the outer casing assembly of a hazardous chemical spill containment device.

[0027] Figure 7 This is a partial structural diagram of the snap-fit ​​component of a hazardous chemical spill prevention device.

[0028] Figure 8 This is an exploded bottom view of a portion of the locking mechanism of a hazardous chemical spill prevention device.

[0029] In the diagram: 1. Outer shell assembly; 11. Outer shell body; 12. Slide groove; 13. First water seal groove; 14. Second water seal groove; 2. Cover plate assembly; 21. Cover plate body; 22. First spring; 23. Sealing plate; 24. Limiting rod; 25. Inner retaining ring; 26. Outer retaining ring; 27. Slot; 28. Sealing membrane; 3. Sealing assembly; 31. Airbag; 32. Support plate; 33. Connecting pipe; 34. Air collection pipe; 35. Air outlet pipe; 36. Snap-fit ​​component; 36-1. Branch pipe; 36-2. Tension spring; 36-3. Movable column; 36-4. Air hole; 36-5. Locking block; 37. Air storage chamber; 38. Slider; 39. Locking component; 39-1. Baffle; 39-2. Fixing rod; 39-3. Stop block; 39-4. Pressure plate; 39-5. Second spring. Detailed Implementation

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0033] Example 1

[0034] Reference Figure 1 and Figure 2 This is the first embodiment of the present invention, which provides a hazardous chemical leak prevention device. The hazardous chemical leak prevention device includes an outer shell assembly 1, a cover plate assembly 2, and a sealing assembly 3. By setting the outer shell assembly 1, the cover plate assembly 2, and the sealing assembly 3, the container holding the hazardous chemicals is contained. Utilizing the double water seal effect, even if the outer water seal fails due to evaporation or contamination, the inner water seal can still maintain the sealing effect, which greatly reduces the leakage rate, improves the storage safety of hazardous chemicals, and avoids leakage.

[0035] Specifically, the outer casing assembly 1 includes an outer casing body 11, with a first water seal groove 13 formed on the outer ring of the top of the outer casing body 11, and a second water seal groove 14 formed on the inner ring of the top of the outer casing body 11.

[0036] Specifically, the cover plate assembly 2 includes a cover plate body 21 disposed on the top of the outer shell body 11, an outer retaining ring 26 fixed on the outer ring at the bottom of the cover plate body 21, an inner retaining ring 25 fixed on the inner ring at the bottom of the cover plate body 21, a slot 27 opened on the outer ring of the outer retaining ring 26, and a sealing film 28 embedded inside the outer shell body 11.

[0037] The sealing membrane 28 is a thermoplastic polyurethane elastomer film that can expand under pressure and automatically recover after the pressure is balanced.

[0038] Specifically, the sealing component 3 includes a support plate 32 disposed inside the outer shell body 11. An airbag 31 is fixed to the bottom of the support plate 32. Connecting pipes 33 are fixed to both sides of the airbag 31. An air collecting pipe 34 is fixed to one end of the connecting pipe 33. An air venting pipe 35 is fixed to one end of the air collecting pipe 34. A snap-fit ​​member 36 is provided at one end of the air venting pipe 35. A locking member 39 is provided at the top of the air venting pipe 35.

[0039] Example 2

[0040] Reference Figures 2-8 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0041] Specifically, the inner cavity of the outer shell body 11 is provided with a sliding groove 12, the top of the cover plate body 21 is fixed with a handle, the inside of the cover plate body 21 is slidably connected with a limit rod 24, and one end of the limit rod 24 is fixed with a sealing plate 23.

[0042] By setting the sealing plate 23, the cover of the chemical container can be pressed down to ensure the sealing of the chemical container itself and further improve the anti-leakage effect.

[0043] By setting the limit rod 24, the movement of the sealing plate 23 can be guided, so that it will not shake during the buffering process, thereby improving the stability of the chemical container under pressure.

[0044] Specifically, the outer ring of the limiting rod 24 is fitted with a first spring 22, one end of the first spring 22 is fixed to the surface of the sealing plate 23, and the other end of the first spring 22 is fixed to the surface of the cover plate body 21.

[0045] Specifically, a slider 38 is fixed to the outer ring of the support plate 32, and the slider 38 is slidably connected to the inner wall of the groove 12.

[0046] By setting the slider 38 and the groove 12, the movement of the support plate 32 can be guided, so that it can move smoothly and ensure that the airbag 31 is evenly pressed.

[0047] Specifically, the snap-fit ​​component 36 includes a branch pipe 36-1 fixed to the outer ring of the air outlet pipe 35, and a movable column 36-3 is slidably connected to the inner cavity of the branch pipe 36-1. A tension spring 36-2 is fixed to one end of the movable column 36-3.

[0048] By setting a tension spring 36-2, the movable column 36-3 can be automatically reset after the pressure inside the air outlet pipe 35 is restored.

[0049] Specifically, one end of the tension spring 36-2 is fixed to the inner wall of the air outlet pipe 35, the other end of the movable column 36-3 is fixed with a locking block 36-5, the surface of the air outlet pipe 35 is provided with an air hole 36-4, and the interior of the outer shell body 11 is fixed with an air storage chamber 37.

[0050] A slope is provided on one side of the locking block 36-5. By setting the slope, the bottom of the outer retaining ring 26 can slide along the slope, making it convenient to push the locking block 36-5 to move.

[0051] Specifically, the sealing membrane 28 is annular in shape, the gas storage chamber 37 is located outside the sealing membrane 28, and the air vents 36-4 are located inside the gas storage chamber 37.

[0052] Specifically, the locking component 39 includes a baffle 39-1 that is slidably connected to the inner cavity of the air outlet pipe 35. A fixing rod 39-2 is fixed to the top of the baffle 39-1, a pressure plate 39-4 is fixed to the top of the fixing rod 39-2, and a second spring 39-5 is fixed to the outer ring of the fixing rod 39-2.

[0053] Specifically, one end of the second spring 39-5 is fixed to the bottom of the pressure plate 39-4, and the other end of the second spring 39-5 is fixed to the top of the outer shell body 11. Both sides of the pressure plate 39-4 are provided with a stop block 39-3.

[0054] Specifically, the bottom of the stop block 39-3 is fixed to the top of the outer shell body 11, and the bottom of the stop block 39-3 is provided with a groove, and the pressure plate 39-4 is used in conjunction with the groove.

[0055] By setting a groove, the pressure plate 39-4 can be locked at the bottom of the stop block 39-3 under the elastic force of the second spring 39-5, thus preventing the pressure plate 39-4 from shaking under normal conditions.

[0056] In use, deionized water is injected into the first water seal tank 13 until the liquid level reaches 2 / 3 of the tank depth. The container containing hazardous chemicals is placed at the bottom of the outer shell 11. The container's gravity compresses the airbag 31 downwards. The gas inside the airbag 31 enters the gas collection pipe 34 through the connecting pipe 33, and then enters the branch pipe 36-1 through the gas outlet pipe 35. The airflow pushes the movable column 36-3 and the locking block 36-5 to move. The sealing film 28 adheres to the surface of the locking block 36-5, conforming to its shape.

[0057] When the movable column 36-3 passes through the air hole 36-4, the airflow enters the air storage chamber 37 through the air hole 36-4, increasing the air pressure inside the air storage chamber 37. This causes the sealing membrane 28 to expand, raising the water level inside the first water seal groove 13. Then, the cover plate body 21 is placed on top of the outer shell body 11, so that the outer retaining ring 26 is located inside the first water seal groove 13 and the inner retaining ring 25 is located inside the second water seal groove 14. When the slot 27 on the outer retaining ring 26 moves to the retaining block 36-5, it descends along the slope of the surface of the retaining block 36-5, causing the retaining block 36-5 to retract slightly.

[0058] When the locking block 36-5 is aligned with the slot 27, the locking block 36-5 rebounds and locks into the slot 27 to lock the cover body 21. At the same time, the outer retaining ring 26 enters the water inside the first water seal groove 13, causing the water level to continue to rise and overflow into the second water seal groove 14, and accumulates on the outer ring of the inner retaining ring 25 for secondary water sealing. Meanwhile, the sealing plate 23 contacts the top of the container and presses it to seal the top cover of the container. At this time, the first spring 22 is compressed and continuously applies elastic force.

[0059] When it is necessary to open the cover body 21, manually press the pressure plate 39-4 to disengage it from the groove on the surface of the stop block 39-3, and then rotate the pressure plate 39-4 half a turn. At this time, the pressure plate 39-4 is released from the restraint of the stop block 39-3, and the gas inside the vent pipe 35 pushes the baffle 39-1 upward to release pressure. At this time, the tension spring 36-2 resets, driving the movable column 36-3 and the locking block 36-5 to move, so that the locking block 36-5 disengages from the slot 27, and then the cover body 21 can be taken out.

[0060] When the container on top of the support plate 32 is removed, the airbag 31 loses pressure and returns to its original position. The pressure plate 39-4 is manually reset to the groove of the stop block 39-3. At this time, the internal pressure of the air outlet pipe 35 returns to the initial state, and the sealing membrane 28 is reset.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A hazardous chemical spill prevention device, characterized in that: include, The outer casing assembly (1) includes an outer casing body (11), wherein a first water seal groove (13) is formed on the outer ring of the top of the outer casing body (11), and a second water seal groove (14) is formed on the inner ring of the top of the outer casing body (11); and, The cover assembly (2) includes a cover body (21) disposed on the top of the outer shell body (11), an outer retaining ring (26) fixed to the outer ring at the bottom of the cover body (21), an inner retaining ring (25) fixed to the inner ring at the bottom of the cover body (21), a slot (27) provided on the outer ring of the outer retaining ring (26), and a sealing film (28) embedded inside the outer shell body (11). The sealing assembly (3) includes a support plate (32) disposed inside the outer shell body (11). An airbag (31) is fixed to the bottom of the support plate (32). A connecting pipe (33) is fixed to both sides of the airbag (31). An air collecting pipe (34) is fixed to one end of the connecting pipe (33). An air outlet pipe (35) is fixed to one end of the air collecting pipe (34). A snap-fit ​​(36) is provided at one end of the air outlet pipe (35). A locking member (39) is provided at the top of the air outlet pipe (35).

2. The hazardous chemical spill prevention device as described in claim 1, characterized in that: The inner cavity of the outer shell body (11) is provided with a sliding groove (12), the top of the cover plate body (21) is fixed with a handle, the inner cavity of the cover plate body (21) is slidably connected with a limit rod (24), and one end of the limit rod (24) is fixed with a sealing plate (23).

3. The hazardous chemical spill prevention device as described in claim 2, characterized in that: The outer ring of the limiting rod (24) is fitted with a first spring (22), one end of the first spring (22) is fixed to the surface of the sealing plate (23), and the other end of the first spring (22) is fixed to the surface of the cover plate body (21).

4. The hazardous chemical spill prevention device as described in claim 3, characterized in that: The outer ring of the support plate (32) is fixed with a slider (38), which is slidably connected to the inner wall of the groove (12).

5. The hazardous chemical spill prevention device as described in claim 4, characterized in that: The snap-fit ​​component (36) includes a branch pipe (36-1) fixed to the outer ring of the air outlet pipe (35), and a movable column (36-3) is slidably connected to the inner cavity of the branch pipe (36-1), and a tension spring (36-2) is fixed to one end of the movable column (36-3).

6. The hazardous chemical spill prevention device as described in claim 5, characterized in that: One end of the tension spring (36-2) is fixed to the inner wall of the air outlet pipe (35), and the other end of the movable column (36-3) is fixed with a locking block (36-5). The surface of the air outlet pipe (35) is provided with an air hole (36-4), and the interior of the outer shell body (11) is fixed with an air storage chamber (37).

7. The hazardous chemical spill prevention device as described in claim 6, characterized in that: The sealing membrane (28) is annular in shape, the gas storage chamber (37) is located outside the sealing membrane (28), and the air holes (36-4) are located inside the gas storage chamber (37).

8. The hazardous chemical spill prevention device as described in claim 1, characterized in that: The locking member (39) includes a baffle (39-1) slidably connected to the inner cavity of the air outlet pipe (35), a fixing rod (39-2) is fixed to the top of the baffle (39-1), a pressure plate (39-4) is fixed to the top of the fixing rod (39-2), and a second spring (39-5) is fixed to the outer ring of the fixing rod (39-2).

9. The hazardous chemical spill prevention device as described in claim 8, characterized in that: One end of the second spring (39-5) is fixed to the bottom of the pressure plate (39-4), and the other end of the second spring (39-5) is fixed to the top of the outer shell body (11). Both sides of the pressure plate (39-4) are provided with stops (39-3).

10. The hazardous chemical spill prevention device as described in claim 9, characterized in that: The bottom of the stop block (39-3) is fixed to the top of the outer shell body (11), and the bottom of the stop block (39-3) is provided with a groove, and the pressure plate (39-4) is used in conjunction with the groove.

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