Packing box sealing and leakage early warning auxiliary device

Abstract

The invention provides a packing box sealing and leakage early warning auxiliary device which comprises a sealing body, an oil inlet component, a first sealing component, a second sealing component and a fixing component, the oil inlet component is arranged on the sealing body, and lubricating oil can enter the sealing body through the oil inlet component; the pumping unit polish rod can continuously lubricate the pumping unit polish rod in the process of moving in the sealing body, the sealing effect of the packing box is improved, the first sealing part is buckled to the sealing body and the end opening of the oil inlet part, external sundries are prevented from entering the sealing body, the second sealing part is arranged between the sealing body and the packing box, and the sealing effect of the packing box is improved. The fixing part is connected with the sealing body, the second sealing part and the packing box and used for improving the sealing performance between the device and the packing box, the liquid level monitoring part is communicated with the sealing body and can monitor the liquid level of lubricating oil in the sealing body, and therefore the leakage condition of the packing box can be visually judged according to the rising amplitude of the liquid level of the lubricating oil. Therefore, the packing leakage early warning is realized.

Description

Technical Field

[0001] The invention relates to the technical field of oil extraction, and in particular to a packing box sealing and leakage early warning auxiliary device. Background Art

[0002] At the oil and gas production site, pumping units are widely used in oil and gas extraction. The wellhead sealing of the pumping well is mainly completed by the cooperation between the bare rod and the rubber packing in the packing box. In actual applications, the existing packing sealing effect can meet the sealing requirements of most oil wells, but the following problems still exist: (1) Due to the long-term friction between the pumping unit packing and the bare rod, it is very easy to cause wear of the sealing packing. Due to the decline in the sealing performance of the packing, oil and gas leakage often occurs. Frequent shutdowns to replace the packing and clean up the leaked oil and gas pollution bring a very large workload to the management personnel. (2) Due to structural reasons, the packing box currently used does not have the protection capability after the packing leaks and the leakage warning capability. (3) Under the conditions of intermittent oil production, high water content, high temperature, etc., the surface of the bare rod cannot form an oil film, and the effective lubrication effect is reduced, resulting in accelerated wear of the packing and failure of the seal.

[0003] The above situations will easily cause the sealing performance of the sealing packing to decrease, and the high-pressure oil and gas in the well will leak from the failure point, seriously affecting the normal production and production rate of the oil well, and there will be great safety hazards and environmental pollution risks.

[0004] Based on the above situation, there is an urgent need to provide a packing box sealing and leakage warning auxiliary device that can solve the above technical problems. Summary of the invention

[0005] The present invention provides a packing box sealing and leakage warning auxiliary device, which is suitable for various types of packing boxes, continuously lubricates the bare rod of the oil pumping unit, improves the sealing effect of the packing box, and can warn of the leakage of the packing box.

[0006] In view of this, the present invention proposes a packing box sealing and leakage warning auxiliary device, characterized in that the packing box sealing and leakage warning auxiliary device can be connected to the packing box seal, the pumping unit bare rod passes through the packing box sealing and leakage warning auxiliary device and the packing box, and the packing box sealing and leakage warning auxiliary device includes: a sealing body, which is cylindrical and has a accommodating space inside; an oil inlet component, which is arranged on the sealing body and is connected to the accommodating space of the sealing body; a first sealing component, which is arranged at one end of the sealing body and is snapped into the port of the oil inlet component; a second sealing component, which is arranged at the other end of the sealing body, and the second sealing component is arranged between the sealing body and the packing box; a fixing component, which connects the sealing body, the second sealing component and the packing box.

[0007] In some optional embodiments, the first sealing component includes a first pressing cap, and the first pressing cap is detachably connected to the sealing body.

[0008] In some optional embodiments, the first pressure cap is threadedly connected to the sealing body.

[0009] In some optional embodiments, the first pressure cap includes a pressure cap cover and an oil inlet cover, the oil inlet cover is arranged along the circumference of the pressure cap cover, and the oil inlet cover is arranged at the port of the oil inlet component.

[0010] In some optional embodiments, the first sealing component further includes an oil baffle packing and a first limit plate, the outer surface of the first limit plate is connected to the inner surface of the sealing body, and the oil baffle packing is arranged on the first limit plate.

[0011] In some optional embodiments, the first limiting plate is annular, a limiting groove is provided at a position of the first limiting plate close to its inner ring, and the oil retaining packing is provided in the limiting groove.

[0012] In some optional embodiments, a second limiting plate is further included, the outer surface of the second limiting plate is connected to the inner surface of the sealing body, and the second limiting plate is arranged at the end of the sealing body away from the first sealing component.

[0013] In some optional embodiments, a transparent window is further included, the sealing body is provided with a limiting hole penetrating through its side wall, and the transparent window is connected to the peripheral side of the limiting hole.

[0014] In some optional embodiments, the transparent window includes a transparent plate and a third sealing component, and the sealing body is also provided with a limiting groove, wherein the limiting groove is recessed from the outer surface of the sealing body toward the inner surface, and the limiting groove is arranged along the circumference of the limiting hole, and the depth of the limiting groove is less than the thickness of the side wall of the sealing body, the transparent plate is arranged in the limiting groove, and the third sealing component is arranged in the limiting groove.

[0015] In some optional embodiments, the liquid level monitoring component is a liquid level tube, one end of which is disposed on the sealing body, and the liquid level tube is connected to the sealing body; or, the liquid level monitoring component is a liquid level sensor.

[0016] Compared with the prior art, the present invention has the following technical effects:

[0017] The present invention provides a packing box sealing and leakage warning auxiliary device, which can be connected to the packing box seal, and the oil pumping unit's polished rod passes through the packing box sealing and leakage warning auxiliary device and the packing box, and the packing box sealing and leakage warning auxiliary device comprises a sealing body, an oil inlet component, a first sealing component, a second sealing component and a fixing component, the sealing body is cylindrical, and has a accommodating space inside, the oil inlet component is arranged on the sealing body, and the oil inlet component is communicated with the accommodating space of the sealing body, and lubricating oil can enter the sealing body through the oil inlet component, and the oil pumping unit's polished rod can continuously lubricate the oil pumping unit's polished rod during the movement inside the sealing body, thereby improving the sealing of the packing box. The first sealing component is arranged at one end of the sealing body, and the first sealing component is buckled with the port of the oil inlet component to prevent external debris from entering the sealing body and thus contaminating the lubricating oil. The second sealing component is arranged at the other end of the sealing body, and the second sealing component is arranged between the sealing body and the packing box. The fixing component connects the sealing body, the second sealing component and the packing box, and is used to improve the sealing performance between the packing box seal and the leakage warning auxiliary device and the packing box. The liquid level monitoring component is connected with the sealing body, and the liquid level monitoring component can monitor the liquid level of the lubricating oil inside the sealing body, so that the leakage of the packing box can be intuitively judged according to the rising amplitude of the lubricating oil level, thereby realizing the packing leakage warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 A schematic diagram of the structure of a packing box sealing and leakage warning auxiliary device provided in one embodiment of the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of the packing box sealing and leakage warning auxiliary device of the provided embodiment;

[0021] Figure 3 for Figure 1 A schematic diagram of the structure of the packing box sealing and leakage warning auxiliary device of the provided embodiment;

[0022] Figure 4 for Figure 2 A schematic cross-sectional view of the embodiment provided;

[0023] Figure 5 for Figure 1 A schematic structural diagram of the packing box sealing and leakage warning auxiliary device of the provided embodiment.

[0024] in, Figures 1 to 5 The corresponding relationship between the reference numerals and component names in the figure is:

[0025] 1-sealing body; 11-limiting hole; 12-second limiting groove; 2-oil inlet component; 3-first sealing component; 31-first pressure cap; 311-pressure cap cover; 312-oil inlet cover; 32-first limiting plate; 33-oil retaining packing; 321-first limiting groove; 4-second sealing component; 5-fixing component; 6-liquid level monitoring component; 61-transparent plate; 62-third sealing component; 7-second limiting plate. DETAILED DESCRIPTION

[0026] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0028] At the oil and gas production site, pumping units are widely used in oil and gas extraction. The wellhead sealing of the pumping well is mainly completed by the cooperation between the bare rod and the rubber packing in the packing box. In actual applications, the existing packing sealing effect can meet the sealing requirements of most oil wells, but the following problems still exist: (1) Due to the long-term friction between the pumping unit packing and the bare rod, it is very easy to cause wear of the sealing packing. Due to the decline in the sealing performance of the packing, oil and gas leakage often occurs. Frequent shutdowns to replace the packing and clean up the leaked oil and gas pollution bring a very large workload to the management personnel. (2) Due to structural reasons, the packing box currently used does not have the protection capability after the packing leaks and the leakage warning capability. (3) Under the conditions of intermittent oil production, high water content, high temperature, etc., the surface of the bare rod cannot form an oil film, and the effective lubrication effect is reduced, resulting in accelerated wear of the packing and failure of the seal.

[0029] The above situations will easily cause the sealing performance of the sealing packing to decrease, and the high-pressure oil and gas in the well will leak from the failure point, seriously affecting the normal production and production rate of the oil well, and there will be great safety hazards and environmental pollution risks.

[0030] Based on the above situation, there is an urgent need to provide a packing box sealing and leakage warning auxiliary device that can solve the above technical problems.

[0031] The present invention provides a packing box sealing and leakage warning auxiliary device, which can be sealed and connected with the packing box, and the oil pump bare rod passes through the packing box sealing and leakage warning auxiliary device and the packing box, and the packing box sealing and leakage warning auxiliary device comprises: a sealing body 1, which is cylindrical and has a accommodating space inside; an oil inlet component 2, which is arranged on the sealing body 1 and is connected to the accommodating space of the sealing body 1; a first sealing component 3, which is arranged at one end of the sealing body 1 and is buckled into the port of the oil inlet component 2; a second sealing component 4, which is arranged at the other end of the sealing body 1, and the second sealing component 4 is arranged between the sealing body 1 and the packing box; a fixing component 5, which connects the sealing body 1, the second sealing component 4 and the packing box; and a liquid level monitoring component 6, which is connected to the sealing body 1.

[0032] Specifically, the sealing body 1 is cylindrical and has a accommodating space inside. The oil inlet component 2 is arranged on the sealing body 1, and the oil inlet component 2 is connected to the accommodating space of the sealing body 1. The lubricating oil can enter the sealing body 1 through the oil inlet component 2. The pumping unit's bare rod can continuously lubricate the pumping unit's bare rod during its movement inside the sealing body 1, thereby improving the sealing effect of the packing box. The first sealing component 3 is arranged at one end of the sealing body 1, and the first sealing component 3 is snapped into the port of the oil inlet component 2 to prevent external debris from entering the sealing body 1 and thereby contaminating the lubricating oil. The second sealing component 4 is arranged at the other end of the sealing body 1, and the second sealing component 4 is arranged between the sealing body 1 and the packing box. The fixing component 5 connects the sealing body 1, the second sealing component 4 and the packing box, and is used to improve the sealing performance between the packing box seal and the leakage warning auxiliary device and the packing box. The liquid level monitoring component 6 is connected to the sealing body 1, and the liquid level monitoring component 6 can monitor the liquid level of the lubricating oil inside the sealing body 1, so that the leakage of the packing box can be intuitively judged according to the rising amplitude of the lubricating oil liquid level, thereby realizing the packing leakage warning.

[0033] In some optional embodiments, the first sealing component 3 includes a first pressing cap 31 , and the first pressing cap 31 is detachably connected to the sealing body 1 .

[0034] Specifically, the first pressure cap 31 is used to buckle the port of the sealing body 1 to seal the sealing body 1 and prevent external debris from entering the sealing body 1. The first pressure cap 31 is provided with a center hole, and the pumping unit rod passes through the center hole of the first pressure cap 31, the sealing body 1 and the packing box in sequence. The pumping unit rod can continuously lubricate the pumping unit rod during the movement inside the sealing body 1, thereby improving the sealing effect of the packing box.

[0035] In some optional embodiments, the first pressing cap 31 is threadedly connected to the sealing body 1 .

[0036] Specifically, a thread is set on the side of the first pressure cap 31, and a thread is set on the inner surface of the sealing body 1. The first pressure cap 31 and the sealing body 1 are sealed and connected through the thread to seal the sealing body 1 to prevent external debris from entering the sealing body 1. The first pressure cap 31 is provided with a center hole, and the pumping unit rod passes through the center hole of the first pressure cap 31, the sealing body 1 and the packing box in sequence. The pumping unit rod can continuously lubricate the pumping unit rod during the movement inside the sealing body 1, thereby improving the sealing effect of the packing box.

[0037] In some optional embodiments, the first pressure cap 31 includes a pressure cap cover 311 and an oil inlet cover 312 . The oil inlet cover 312 is arranged along the circumference of the pressure cap cover 311 , and the oil inlet cover 312 is arranged at the port of the oil inlet component 2 .

[0038] Specifically, threads are set on the side of the pressure cap cover 311, and threads are set on the inner surface of the sealing body 1. The first pressure cap 31 and the sealing body 1 are sealed and connected through threads to seal the sealing body 1 and prevent external debris from entering the sealing body 1. The oil inlet cover 312 is set along the circumference of the pressure cap cover 311, and the oil inlet cover 312 is snapped into the port of the oil inlet component 2 to prevent external debris from entering the sealing body 1 through the oil inlet component 2, thereby preventing external debris from entering the sealing body 1 through the oil inlet component 2, thereby causing pollution to the lubricating oil inside the sealing body 1.

[0039] In some optional embodiments, the first sealing component 3 further includes an oil baffle packing 33 and a first limiting plate 32 , the side surface of the first limiting plate 32 is connected to the inner surface of the sealing body 1 , and the oil baffle packing 33 is arranged on the first limiting plate 32 .

[0040] Specifically, the side of the first limit plate 32 is connected to the inner surface of the sealing body 1, and the first limit plate 32 and the sealing body 1 are divided into two connected chambers, which are respectively a first chamber and a second chamber. The first chamber is used to accommodate the oil baffle packing 33, and the second chamber is used to carry lubricating oil. The first limit plate 32 is used to support the oil baffle packing 33. The first limit plate 32 is annular and has a center hole inside. The oil pump rod can move up and down inside the sealing body 1. The inside of the sealing body 1 has lubricating oil. During the up and down movement of the oil pump rod, the surface of the oil pump rod carries a large amount of lubricating oil. The oil baffle packing 33 can block the lubricating oil on the oil pump rod, so that part of the lubricating oil can return to the inside of the sealing body 1, thereby improving the utilization rate of the lubricating oil.

[0041] In some optional embodiments, the first limiting plate 32 is annular, a first limiting groove 321 is provided near an inner ring of the first limiting plate 32 , and the oil retaining packing 33 is provided in the first limiting groove 321 .

[0042] Specifically, the side of the first limit plate 32 is connected to the inner surface of the sealing body 1, and the first limit plate 32 and the sealing body 1 are divided into two connected chambers, which are respectively a first chamber and a second chamber. The first chamber is used to accommodate the oil baffle packing 33, and the second chamber is used to carry lubricating oil. The first limit plate 32 is provided with a first limit groove 321 near its own inner ring, and the oil baffle packing 33 is provided in the first limit groove 321, which can limit the oil baffle packing 33 to prevent the oil baffle packing 33 from displacement. The oil pump rod passes through the center hole of the first pressure cap 31, the center hole of the oil baffle packing 33, the center hole of the first limit plate 32, and the sealing body 1, thereby entering the packing box. The oil pump rod can move up and down inside the sealing body 1. There is lubricating oil inside the sealing body 1. During the up and down movement of the oil pump rod, the surface of the oil pump rod carries a large amount of lubricating oil. The oil retaining packing 33 can block the lubricating oil on the oil pump rod, so that part of the lubricating oil can return to the inside of the sealing body 1, thereby improving the utilization rate of the lubricating oil.

[0043] In some optional embodiments, a second limiting plate 7 is further included, the side surface of the second limiting plate 7 is connected to the inner surface of the sealing body 1 , and the second limiting plate 7 is arranged at the end of the sealing body 1 away from the first sealing component 3 .

[0044] Specifically, the side of the second limit plate 7 is connected to the inner surface of the sealing body 1. The second limit plate 7 divides the sealing body 1 into two chambers, namely the second chamber and the third chamber. The first chamber, the second chamber and the third chamber in the sealing body 1 are connected in sequence. The side wall of the third chamber surrounded by the sealing body 1 is used to connect with the packing box. The second chamber of the sealing body 1 is used to contain lubricating oil. The pump rod passes through the center hole of the first pressure cap 31, the center hole of the oil retaining packing 33, the center hole of the first limit plate 32, the sealing body 1, and the center hole of the second limit plate 7, and then enters the packing box. The pump rod can move up and down inside the sealing body 1. The inside of the sealing body 1 has lubricating oil. During the up and down movement of the pump rod, the surface of the pump rod carries a large amount of lubricating oil. The oil retaining packing 33 can block the lubricating oil on the pump rod, so that part of the lubricating oil can return to the inside of the sealing body 1, thereby improving the utilization rate of the lubricating oil.

[0045] In some optional embodiments, the liquid level monitoring component 6 is a transparent window, the sealing body 1 is provided with a limiting hole 11, the sealing body is provided with a limiting hole penetrating its side wall, and the transparent window is connected to the peripheral side of the limiting hole 11.

[0046] Specifically, the sealing body 1 is provided with a transparent window, and the staff can observe the lubricating oil consumption in real time according to the lubricating oil level position. If the lubricating oil level rises, it can remind the staff that the packing box has a slight leak and needs to be tightened or replaced in time, so as to achieve the purpose of early warning. This effectively reduces the management difficulty and workload of the staff and improves the management efficiency of daily pumping wells.

[0047] In some optional embodiments, the transparent window includes a transparent plate 61 and a third sealing component 62. The sealing body 1 is also provided with a second limiting groove 12. The second limiting groove 12 is recessed from the outer surface to the inner surface of the sealing body 1. The second limiting groove 12 is arranged along the circumference of the limiting hole 11. The depth of the second limiting groove 12 is less than the thickness of the side wall of the sealing body 1. The transparent plate 61 is arranged in the second limiting groove 12, and the third sealing component 62 is arranged in the second limiting groove 12.

[0048] Specifically, the transparent plate 61 is connected to the sealing body 1 by bolts, the transparent plate 61 is arranged in the second limiting groove 12, the transparent plate 61 is used to buckle the limiting hole 11, and a plurality of bolts are evenly arranged around the circumference of the transparent plate 61, so that the transparent plate 61 is installed on the sealing body 1. The third sealing component 62 is arranged in the second limiting groove 12, and a plurality of bolts are arranged around the circumference of the third sealing component 62, so that the third sealing component 62 is installed on the sealing body 1. Optionally, a sealing ring is arranged around the circumference of the third sealing component 62, and the sealing ring is a rubber sealing ring to prevent the lubricating oil in the sealing body 1 from leaking.

[0049] In some optional embodiments, the liquid level monitoring component 6 is a liquid level tube, one end of which is disposed on the sealing body 1 and is connected to the sealing body 1; or, the liquid level monitoring component 6 is a liquid level sensor.

[0050] Specifically, the liquid level pipe includes a connecting pipe and a liquid level pipe. The connecting pipe and the liquid level pipe are vertical. One end of the connecting pipe is connected to the sealing body, and the other end of the connecting pipe is connected to the liquid level pipe. The liquid level pipe extends in the height direction of the sealing body 1. The lubricating oil inside the sealing body 1 can enter the liquid level pipe. The lubricating oil consumption can be judged by observing the height of the lubricating oil in the liquid level pipe. If the lubricating oil level rises, it can remind the management personnel that the packing has a slight leakage and needs to be tightened or replaced in time, so as to achieve the purpose of early warning. This effectively reduces the management difficulty and workload of the management personnel and improves the management efficiency of daily pumping wells.

[0051] The packing box sealing and leakage warning auxiliary device provided by the present invention can improve the sealing effect of the packing box and the effective warning of the packing box leakage, and can be applied to various types of pumping wells. After application, it can effectively improve the lubrication degree of the polished rod, further improve the sealing effect of special wells and reduce this problem, and can effectively ensure the production time rate of special well conditions such as intermittent oil wells and high water content wells, and greatly ensure the normal production of the oil wells. At the same time, it improves the packing leakage warning function, and minimizes the risk of oil and gas leakage caused by excessive wear of the packing box in the pumping well, eliminating the risk of environmental pollution.

[0052] In the present invention, the term "plurality" means at least two or more than two, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0053] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A packing box sealing and leakage warning auxiliary device, It is characterized in that The packing box sealing and leakage warning auxiliary device can be connected to the packing box seal, and the oil pumping unit polished rod passes through the packing box sealing and leakage warning auxiliary device and the packing box. The packing box sealing and leakage warning auxiliary device includes: The sealing body (1) is cylindrical and has a containing space inside; An oil inlet component (2) is arranged on the sealing body (1) and is communicated with the accommodating space of the sealing body (1); A first sealing component (3) is arranged at one end of the sealing body (1) and is buckled into a port of the oil inlet component (2); A second sealing component (4) is arranged at the other end of the sealing body (1), and the second sealing component (4) is arranged between the sealing body (1) and the packing box; A fixing component (5) connecting the sealing body (1), the second sealing component (4) and the packing box; A liquid level monitoring component (6) is connected to the sealing body (1).

2. The packing box sealing and leakage warning auxiliary device according to claim 1, It is characterized in that The first sealing component (3) comprises a first pressing cap (31), and the first pressing cap (31) is detachably connected to the sealing body (1).

3. The packing box sealing and leakage warning auxiliary device according to claim 2, It is characterized in that The first pressing cap (31) is threadedly connected to the sealing body (1).

4. The packing box sealing and leakage warning auxiliary device according to claim 3, It is characterized in that The first pressure cap (31) comprises a pressure cap cover (311) and an oil inlet cover (312); the oil inlet cover (312) is arranged along the circumference of the pressure cap cover (311); and the oil inlet cover (312) is arranged at the port of the oil inlet component (2).

5. The packing box sealing and leakage warning auxiliary device according to claim 2, It is characterized in that The first sealing component (3) further comprises an oil baffle packing (33) and a first limit plate (32); the outer surface of the first limit plate (32) is connected to the inner surface of the sealing body (1); and the oil baffle packing (33) is arranged on the first limit plate (32).

6. The packing box sealing and leakage warning auxiliary device according to claim 5, It is characterized in that The first limiting plate (32) is annular in shape, and a first limiting groove (321) is arranged near the inner ring of the first limiting plate (32), and the oil retaining packing (33) is arranged in the first limiting groove (321).

7. The packing box sealing and leakage warning auxiliary device according to claim 1, It is characterized in that It also comprises a second limiting plate (7), the outer surface of the second limiting plate (7) is connected to the inner surface of the sealing body (1), and the second limiting plate (7) is arranged at the end of the sealing body (1) away from the first sealing component (3).

8. The packing box sealing and leakage warning auxiliary device according to claim 1, It is characterized in that The liquid level monitoring component (6) is a transparent window, the sealing body (1) is provided with a limiting hole (11) penetrating its side wall, and the transparent window is connected to the peripheral side of the limiting hole (11).

9. The packing box sealing and leakage warning auxiliary device according to claim 8, It is characterized in that The transparent window comprises a transparent plate (61) and a third sealing component (62); the sealing body (1) is further provided with a second limiting groove (12); the second limiting groove (12) is recessed from the outer surface of the sealing body (1) toward the inner surface; the second limiting groove (12) is arranged along the circumference of the limiting hole (11); the depth of the second limiting groove (12) is less than the thickness of the side wall of the sealing body (1); the transparent plate (61) is arranged in the second limiting groove (12); and the third sealing component (62) is arranged in the second limiting groove (12).

10. The packing box sealing and leakage warning auxiliary device according to claim 1, It is characterized in that The liquid level monitoring component (6) is a liquid level tube, one end of which is arranged on the sealing body (1), and the liquid level tube is in communication with the sealing body (1); Alternatively, the liquid level monitoring component (6) is a liquid level sensor.

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