An insulating liquid quantitative filling device

Abstract

The utility model discloses an insulation liquid quantitative filling equipment, including main shell body, install the vice shell body on main shell body and fixedly connected on the support frame of main shell body, still include install the first fastening assembly on main shell body, install the second fastening assembly on the vice shell body, install the liquid storage tank inner bag between main shell body and vice shell body, install the heating wire body and fill the mouth subassembly on liquid storage tank inner bag, install the first heat preservation layer board on main shell body with install the second heat preservation layer board on vice shell body. Over set up first heat preservation layer board and second heat preservation layer board, make heat preservation pad closely adhere liquid storage tank inner bag both sides, and both form complete inner bag lateral heat preservation structure, effectively eliminate heat preservation blind area, and the heat exchange of overall barrier liquid storage tank inner bag and outside, reduce temperature loss, accurate maintenance insulation liquid storage required stable temperature environment, provide reliable guarantee for insulation liquid storage quality.

Description

Technical Field

[0001] This utility model relates to the field of filling equipment technology, specifically to a quantitative filling device for insulating liquid. Background Technology

[0002] In the field of power equipment maintenance and manufacturing, the accurate filling of insulating fluid is a crucial step in ensuring equipment performance and safe operation. Among these tools, the quantitative filling equipment for insulating fluid is a core component; its performance directly impacts the quality and efficiency of the filling operation, providing strong support for the safe operation of power equipment.

[0003] In existing technologies, traditional liquid storage tanks typically use a single material and structure. When the ambient temperature of the equipment changes drastically, the temperature of the insulating liquid inside the tank fluctuates significantly. This unstable temperature directly leads to a significant change in the physical properties of the insulating liquid, the most prominent of which is the change in viscosity. As an important indicator for measuring the fluidity of a liquid, the stability of viscosity is crucial for the accuracy of quantitative filling. Under the influence of temperature fluctuations, the viscosity of the insulating liquid is sometimes too high and sometimes too low, making it difficult to accurately control the flow rate and velocity of the liquid during filling, thus affecting the accuracy of the filling amount. Utility Model Content

[0004] The purpose of this invention is to provide a quantitative filling device for insulating liquid, in order to solve the problems mentioned in the background art, such as the single material structure of traditional liquid storage tanks, the large temperature fluctuation of insulating liquid caused by environmental temperature changes, the unstable viscosity, the difficulty in accurately controlling the filling flow rate, and the final impact on the accuracy of quantitative filling.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an insulating liquid quantitative filling device, comprising a main outer shell body, a secondary outer shell body installed on the main outer shell body, and a support frame fixedly connected to the main outer shell body, and further comprising a first fastening component installed on the main outer shell body, a second fastening component installed on the secondary outer shell body, a liquid storage tank inner liner installed between the main outer shell body and the secondary outer shell body, a heating wire body and a filling port assembly installed on the liquid storage tank inner liner, a first insulation layer plate installed on the main outer shell body and a second insulation layer plate installed on the secondary outer shell body, an inlet insulation layer plate installed on the liquid storage tank inner liner, and a sealing plate assembly installed on the inlet insulation layer plate; During assembly, the main outer shell is fixed in position by the first fastening component, and the secondary outer shell is fixed in position by the second fastening component. When the insulating liquid enters the inner tank of the storage tank, the heating wire body works to provide heat to ensure the temperature inside the inner tank of the storage tank. The first and second insulation layers reduce the heat loss inside the inner tank of the storage tank, and the inlet insulation layer prevents heat loss from the inlet.

[0006] According to the preferred embodiment of this technical solution, the first insulation layer includes a first mounting plate installed on the main outer shell and a first insulation pad fixedly connected to the first mounting plate on the side near the inner liner of the liquid storage tank.

[0007] According to the preferred embodiment of this technical solution, the second insulation layer includes a second mounting plate installed on the sub-outer shell body and a second insulation pad fixedly connected to the second mounting plate on the side near the inner liner of the liquid storage tank.

[0008] In a preferred embodiment of this technical solution, the first fastening assembly includes a first connecting buckle fixedly connected to the main housing body, a first guide rod slidably connected to the main housing body, a first locking block fixedly connected to the first guide rod, a first threaded rod threadedly connected to the main housing body, and a first turntable fixedly connected to one end of the first threaded rod. The end of the first threaded rod away from the first turntable is rotatably connected to the first locking block, and the first locking block is locked to the first connecting buckle. The first turntable is used to adjust the rotation of the first threaded rod. When the first threaded rod rotates, it pushes the first locking block closer to or away from the first connecting buckle. In a preferred embodiment of this technical solution, the second fastening assembly includes a second connecting buckle fixedly connected to the main housing body, a second guide rod slidably connected to the sub-housing body, a second snap-fit ​​block fixedly connected to the second guide rod, a second threaded rod threadedly connected to the sub-housing body, a second turntable fixedly connected to the second threaded rod, one end of the second threaded rod away from the second turntable being rotatably connected to the second snap-fit ​​block, the second snap-fit ​​block being snap-fitted to the second connecting buckle, the second turntable being used to drive the second threaded rod to rotate, and the second threaded rod pushing the second snap-fit ​​block away from or closer to the second connecting buckle when rotating.

[0009] Based on the preferred embodiment of this technical solution, the filling port assembly includes an electrically controlled valve body that is detachably installed on the inner liner of the storage tank and a filling head body that is fixedly connected to the electrically controlled valve body.

[0010] Based on the preferred embodiment of this technical solution, the inlet insulation plate includes an installation rod installed on the inner liner of the liquid storage tank and an inlet heat insulation plate fixedly connected to the installation rod, and the sealing plate assembly is installed on the inlet heat insulation plate.

[0011] According to the preferred embodiment of this technical solution, the sealing plate assembly includes a conveying pipeline fixedly connected to the heat insulation plate of the feed inlet, a cover rotatably connected to the conveying pipeline, and a torsion spring fixedly connected between the conveying pipeline and the cover.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting up a first insulation layer and a second insulation layer, the insulation pad is tightly attached to both sides of the inner liner of the liquid storage tank. The two form a complete inner liner side insulation structure, effectively eliminating insulation blind spots, completely blocking heat exchange between the inner liner of the liquid storage tank and the outside world, reducing temperature loss, and accurately maintaining the stable temperature environment required for the storage of insulating liquid, thus providing a reliable guarantee for the quality of insulating liquid storage.

[0013] 2. The first and second insulation layers adopt a modular and independent design, each serving as a complete functional module to adapt to the installation structure of the main shell and the secondary shell. When one of the modules ages and its insulation performance declines due to long-term use, it is not necessary to disassemble the entire insulation system or replace all related components. The aging module can be directly disassembled and replaced individually, avoiding material waste and excessive cost losses caused by replacing the entire system.

[0014] 3. The inlet insulation plate is fixed to the inlet heat insulation plate by the mounting rod, which precisely covers the inlet area of ​​the inner liner of the liquid storage tank, and specifically blocks the heat loss of this key part. The sealing plate assembly uses a torsion spring to drive the sealing cover to automatically close the delivery pipeline port, forming a sealed protection, further blocking heat leakage and filling the blind spot of the conventional insulation structure of the inlet. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of one embodiment of the insulating liquid quantitative dispensing device of this utility model; Figure 2 for Figure 1 Schematic diagram of the exploded structure of the main outer shell and the secondary outer shell; Figure 3 This is a schematic diagram of the first insulation layer of this utility model. Figure 4 This is a schematic diagram of the structure of the second insulation layer of this utility model; Figure 5 This is a schematic diagram of the first fastening component of this utility model; Figure 6 This is a schematic diagram of the second fastening component of this utility model; Figure 7 This is a schematic diagram of the insulation layer structure of the feed inlet of this utility model; Figure 8 This is a schematic diagram of the sealing plate assembly structure of this utility model.

[0016] In the diagram: 1. Main outer shell; 4. Secondary outer shell; 5. Support frame; 21. Inner liner of the storage tank; 22. First mounting plate; 23. First insulation pad; 24. Second mounting plate; 25. Second insulation pad; 26. Heating wire body; 27. First connecting buckle; 28. First guide rod; 29. ​​First snap-fit ​​block; 210. First threaded rod; 211. First turntable; 212. Second connecting buckle; 213. Second guide rod; 214. Second snap-fit ​​block; 215. Second threaded rod; 216. Second turntable; 217. Electrically controlled valve body; 218. Filling head body; 31. Mounting rod; 32. Inlet heat insulation plate; 33. Conveying pipeline; 34. Cover; 35. Torsion spring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1 - Figure 8 This utility model provides an embodiment: an insulating liquid quantitative filling device, including a main outer shell 1, a secondary outer shell 4 installed on the main outer shell 1 and a support frame 5 fixedly connected to the main outer shell 1, and also includes a first fastening component installed on the main outer shell 1, a second fastening component installed on the secondary outer shell 4, a liquid storage tank liner 21 installed between the main outer shell 1 and the secondary outer shell 4, a heating wire body 26 and a filling port assembly installed on the liquid storage tank liner 21, a first insulation layer plate installed on the main outer shell 1 and a second insulation layer plate installed on the secondary outer shell 4, an inlet insulation layer plate installed on the liquid storage tank liner 21 and a sealing plate assembly installed on the inlet insulation layer plate; During assembly, the main outer shell body 1 is fixed in position by the first fastening component, and the secondary outer shell body 4 is fixed in position by the second fastening component. When the insulating liquid enters the inner liner 21 of the storage tank, the heating wire body 26 works to provide heat to ensure the temperature inside the inner liner 21 of the storage tank. The first and second insulation layers reduce the heat loss inside the inner liner 21 of the storage tank. The inlet insulation layer prevents heat loss from the inlet. When using this insulating liquid metering device, the position of the main outer shell 1 is first fixed by the first fastening component, and the secondary outer shell 4 is assembled and fixed on the main outer shell 1 by the second fastening component. The support frame 5 supports the entire device. The main outer shell 1 and the secondary outer shell 4 cooperate to form the main frame of the device. The inner liner 21 of the liquid storage tank is installed between the two to complete the basic assembly of the device. When adding insulating liquid into the equipment, the sealing plate assembly is operated to open the relevant feeding channels. The insulating liquid enters the inner liner 21 of the storage tank through the feeding structure for storage. After feeding is completed, the sealing plate assembly is reset and closed. During the storage of the insulating liquid, the heating wire body 26 continues to work. The heating wire body 26 is connected to an external sensor and controller to control the heat output of the heating wire body 26 to provide heat to the inner liner 21 of the storage tank to ensure the required storage temperature of the insulating liquid. At this time, the first insulation layer and the second insulation layer cooperate with the main outer shell 1 and the secondary outer shell 4 respectively to reduce the temperature loss inside the inner liner 21 of the storage tank. The inlet insulation layer specifically prevents heat from being lost from the inlet position, and together they maintain the temperature stability inside the inner liner 21 of the storage tank. When a quantitative filling operation of insulating liquid is required, the filling port assembly is activated. Under the guidance of relevant structures, the insulating liquid in the inner tank 21 is quantitatively output to the target location through the filling port assembly. After filling is completed, the filling port assembly stops working. If the equipment needs to continue storing insulating liquid, the heating wire body 26 and each heat preservation component remain in working condition to continuously maintain the temperature of the inner tank 21. If storage is no longer required, the heating wire body 26 can be turned off, and the main outer shell 1 and the secondary outer shell 4 can be disassembled through the first fastening component and the second fastening component for subsequent maintenance or cleaning of each component.

[0019] Please see Figure 1 - Figure 3 A further solution based on this embodiment is as follows: The first insulation layer includes a first mounting plate 22 installed on the main outer shell 1 and a first insulation pad 23 fixedly connected to the first mounting plate 22 on the side near the inner liner 21 of the liquid storage tank. The main outer shell 1 has an installation groove adapted to the first mounting plate 22. The first mounting plate 22 provides fixed support for the insulation pad. The insulation pad directly adheres to the outside of the inner liner 21 of the liquid storage tank, blocking heat exchange between the inner liner and the outside. The combination structure of the mounting plate and the insulation pad not only ensures the installation stability of the insulation layer, but also achieves efficient insulation by directly acting on the inner liner through the insulation pad; it improves the insulation targeting, reduces heat loss from the main outer shell side, and at the same time, the structure is simple and easy to disassemble and maintain, reducing subsequent maintenance costs.

[0020] Please see Figure 2 and Figure 4A further solution based on this embodiment is as follows: The second insulation layer includes a second mounting plate 24 installed on the sub-outer shell body 4 and a second insulation pad 25 fixedly connected to the side of the second mounting plate 24 near the inner liner 21 of the liquid storage tank. The sub-outer shell body 4 has an installation groove adapted to the second mounting plate 24. The second mounting plate 24 fixes the second insulation pad 25 to the inner side of the sub-outer shell. The insulation pad is tightly attached to the surface of the inner liner to form a side insulation barrier. It works with the first insulation layer to form a complete inner liner side insulation structure, eliminating insulation blind spots and further improving the overall insulation effect.

[0021] Please see Figure 1 and Figure 5 A further solution based on this embodiment is as follows: The first fastening assembly includes a first connecting buckle 27 fixedly connected to the main housing body 1, a first guide rod 28 slidably connected to the main housing body 1, a first locking block 29 fixedly connected to the first guide rod 28, a first threaded rod 210 threadedly connected to the main housing body 1, and a first turntable 211 fixedly connected to one end of the first threaded rod 210. The end of the first threaded rod 210 away from the first turntable 211 is rotatably connected to the first locking block 29, and the first locking block 29 is locked to the first connecting buckle 27. The first turntable 211 is used to adjust the rotation of the first threaded rod 210. When the first threaded rod 210 rotates, it pushes the first snap-fit ​​block 29 closer to or further away from the first connecting buckle 27. Rotating the first turntable 211 drives the first threaded rod 210 to rotate. The threaded rod pushes the first snap-fit ​​block 29 to slide along the guide rod, thereby locking or separating the snap-fit ​​block from the connecting buckle, completing the fixing or disassembly of the main housing. The guide rod ensures that the snap-fit ​​block slides smoothly and accurately, avoiding snap-fit ​​offset and improving the reliability of fastening. The threaded transmission structure has a self-locking function, and it is not easy to loosen after locking, ensuring the long-term stable fixing of the main housing.

[0022] Please see Figure 1 and Figure 6A further embodiment of this solution is as follows: the second fastening assembly includes a second connecting buckle 212 fixedly connected to the main housing body 1, a second guide rod 213 slidably connected to the secondary housing body 4, a second snap-fit ​​block 214 fixedly connected to the second guide rod 213, a second threaded rod 215 threadedly connected to the secondary housing body 4, and a second turntable 216 fixedly connected to the second threaded rod 215. One end of the second threaded rod 215 away from the second turntable 216 is rotatably connected to the second snap-fit ​​block 214. The second snap-fit ​​block 214 is snap-fitted to the second connecting buckle 212. The second turntable 216 is used to drive the second threaded rod 215 to rotate. When the second threaded rod 215 rotates, it pushes... The second snap-fit ​​block 214 moves away from or near the second connecting buckle 212. Rotating the second turntable 216 drives the second threaded rod 215 to rotate. The threaded rod drives the second snap-fit ​​block 214 to slide along the second guide rod 213, causing the snap-fit ​​block to engage or disengage from the second connecting buckle 212. This achieves the fixing or separation of the secondary housing and the main housing, adapting to the structure of the first fastening assembly, ensuring the consistency and stability of the connection between the main and secondary housings, and improving the overall structural strength of the equipment. The cooperative design of the guide rod and the threaded rod ensures precise movement of the snap-fit ​​block and tight engagement, effectively preventing the secondary housing from shaking. The turntable is easy to operate, the threaded structure is secure and reliable, and it is also easy to disassemble and maintain later. Furthermore, the snap-fit ​​design is reusable, reducing equipment maintenance costs.

[0023] Please see Figure 1 - Figure 2 A further solution based on this embodiment is as follows: the filling port assembly includes an electrically controlled valve body 217 detachably installed on the inner liner 21 of the liquid storage tank and a filling head body 218 fixedly connected to the electrically controlled valve body 217. The electrically controlled valve body 217 controls the opening and closing of the liquid outlet channel of the inner liner 21 of the liquid storage tank and adjusts the liquid output according to the quantitative requirements. The filling head body 218 guides the insulating liquid to be accurately injected into the target position. The electrically controlled valve can realize automated and precise volume control, avoid human operation errors, and improve filling accuracy and consistency.

[0024] Please see Figure 2 , Figure 7 - Figure 8A further solution based on this embodiment is as follows: the inlet insulation plate includes an installation rod 31 installed on the inner liner 21 of the storage tank and an inlet heat insulation plate 32 fixedly connected to the installation rod 31. The sealing plate assembly is installed on the inlet heat insulation plate 32. The installation rod 31 fixes the inlet heat insulation plate 32 at the inlet position of the inner liner 21 of the storage tank. The heat insulation plate covers the inlet area, reducing heat loss from the inlet, and at the same time provides an installation base for the sealing plate assembly. It specifically covers the inlet, a key area for temperature loss, filling the gap of conventional insulation structures, greatly improving the overall insulation effect, and ensuring the stability of the inner liner temperature. The fixing method of the installation rod 31 ensures that the heat insulation plate is firmly installed and is not easy to fall off due to equipment vibration or feeding operation. The heat insulation plate also supports the sealing plate assembly, realizing functional integration, simplifying the inlet structure design, and improving space utilization.

[0025] Please see Figure 7 - Figure 8 A further solution based on this embodiment is as follows: The sealing plate assembly includes a conveying pipe 33 fixedly connected to the heat insulation plate 32 at the feed inlet, a sealing cap 34 rotatably connected to the conveying pipe 33, and a torsion spring 35 fixedly connected between the conveying pipe 33 and the sealing cap 34. The conveying pipe 33 is used for the input of insulating liquid. When there is no feeding operation, the elastic force of the torsion spring 35 drives the sealing cap 34 to automatically close the pipe port. When feeding, an external force pushes the sealing cap 34 open. After feeding is completed, the torsion spring 35 resets and causes the sealing cap 34 to close again. The automatic sealing cap 34 design driven by the torsion spring 35 eliminates the need for manual closing, simplifies the operation process, and avoids heat loss and impurity entry due to forgetting to close the cap, improving the convenience and safety of equipment use. The sealing cap 34 is rotatably connected to the pipe, with a flexible structure. It opens smoothly when feeding and seals tightly when closed, effectively blocking heat dissipation and external pollutant intrusion, ensuring the quality of insulating liquid storage.

[0026] Other embodiments: The heating wire body 26 can also adopt other structures in the prior art, and be replaced by a spiral heating wire; the advantage is that the spiral heating wire has a heating area that is twice that of a normal heating wire body, and also improves the temperature uniformity of the inner liner 21 of the liquid storage tank, avoiding local overheating that could lead to deterioration of the insulating liquid.

[0027] Working principle: When assembling the insulating liquid metering dispensing device, the first turntable 211 of the first fastening component is operated. The first turntable 211 drives the first threaded rod 210 to rotate. The first guide rod 28 guides the movement of the first snap-fit ​​block 29, so that the first snap-fit ​​block 29 engages with the first connecting buckle 27, thereby fixing the position of the main outer shell 1. At the same time, the second turntable 216 of the second fastening component is operated. The second turntable 216 drives the second threaded rod 215 to rotate. The second guide rod 213 guides the movement of the second snap-fit ​​block 214, so that the second snap-fit ​​block 214 engages with the second connecting buckle 212, assembling and fixing the secondary outer shell 4 onto the main outer shell 1. The support frame 5 supports the entire device. The main outer shell 1 and the secondary outer shell 4 cooperate to form the main frame of the device. The inner liner of the liquid storage tank is installed between the two, completing the basic assembly of the device. When adding insulating fluid into the equipment, an external force acts on the cover 34 of the sealing plate assembly, overcoming the elastic force of the torsion spring 35 to push open the cover 34. The insulating fluid enters the inner liner 21 of the storage tank through the delivery pipeline 33 for storage. After the feeding is completed, the torsion spring 35 returns to its original deformation, causing the cover 34 to reset and closing the port of the delivery pipeline 33. During the storage of the insulating fluid, the heating wire body 26 continues to work, providing heat to the inside of the inner liner 21 of the storage tank to ensure the required storage temperature of the insulating fluid. At this time, the first mounting plate 22 of the first insulation layer supports the first insulation pad 23. The first insulation pad 23 is attached to the outside of the inner liner 21 of the liquid storage tank. The second mounting plate 24 of the second insulation layer supports the second insulation pad 25. The second insulation pad 25 is attached to the other side of the inner liner 21 of the liquid storage tank. Both of them cooperate with the main outer shell 1 and the secondary outer shell 4 respectively to block the heat exchange between the inner liner 21 of the liquid storage tank and the outside. The mounting rod 31 of the inlet insulation layer fixes the inlet heat insulation plate 32. The inlet heat insulation plate 32 covers the inlet area of ​​the inner liner 21 of the liquid storage tank. Together with the closed cover 34, they maintain the temperature stability inside the inner liner 21 of the liquid storage tank. When a quantitative filling operation of insulating liquid is required, the solenoid valve body 217 of the filling port assembly is activated. The solenoid valve body 217 adjusts the opening and closing of the liquid outlet channel in the inner tank 21 of the storage tank, controlling the liquid output according to the quantitative requirement. Under the guidance of relevant structures, the insulating liquid in the inner tank 21 is output to the target position through the filling head body 218. After filling is completed, the solenoid valve body 217 stops working and closes the liquid outlet channel. If the equipment needs to continue storing insulating liquid, the heating wire body 26 continues to work, and the first insulation layer, the second insulation layer, the inlet insulation layer, and the... The sealing plate assembly maintains its original working state and continuously maintains the temperature of the inner liner 21 of the liquid storage tank. If storage is no longer required and disassembly and replacement are necessary, the heating wire body 26 can be turned off. The first turntable 211 of the first fastening assembly is operated to drive the first threaded rod 210 to rotate, so that the first snap-fit ​​block 29 is separated from the first connecting buckle 27. The second turntable 216 of the second fastening assembly is operated to drive the second threaded rod 215 to rotate, so that the second snap-fit ​​block 214 is separated from the second connecting buckle 212. The main outer shell body 1 and the secondary outer shell body 4 are disassembled for subsequent maintenance or cleaning of each component.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An insulating liquid metering device, comprising a main outer shell body (1), a secondary outer shell body (4) mounted on the main outer shell body (1), and a support frame (5) fixedly connected to the main outer shell body (1), characterized in that: It also includes a first fastening assembly installed on the main outer shell body (1), a second fastening assembly installed on the secondary outer shell body (4), a liquid storage tank liner (21) installed between the main outer shell body (1) and the secondary outer shell body (4), a heating wire body (26) and a filling port assembly installed on the liquid storage tank liner (21), a first insulation layer plate installed on the main outer shell body (1) and a second insulation layer plate installed on the secondary outer shell body (4), an inlet insulation layer plate installed on the liquid storage tank liner (21), and a sealing plate assembly installed on the inlet insulation layer plate; During assembly, the main outer shell body (1) is fixed in position by the first fastening component, and the secondary outer shell body (4) is fixed in position by the second fastening component. When the insulating liquid enters the inner liner (21) of the storage tank, the heating wire body (26) provides heat to ensure the temperature inside the inner liner (21) of the storage tank. The first insulation layer and the second insulation layer reduce the heat loss inside the inner liner (21) of the storage tank. The inlet insulation layer prevents heat loss from the inlet.

2. The insulating liquid metering and dispensing device according to claim 1, characterized in that: The first insulation layer includes a first mounting plate (22) installed on the main outer shell body (1) and a first insulation pad (23) fixedly connected to the side of the first mounting plate (22) near the inner liner (21) of the liquid storage tank.

3. The insulating liquid metering device according to claim 1, characterized in that: The second insulation layer includes a second mounting plate (24) installed on the sub-outer shell body (4) and a second insulation pad (25) fixedly connected to the second mounting plate (24) on the side near the inner liner (21) of the liquid storage tank.

4. The insulating liquid metering device according to claim 1, characterized in that: The first fastening assembly includes a first connecting buckle (27) fixedly connected to the main housing body (1), a first guide rod (28) slidably connected to the main housing body (1), a first snap block (29) fixedly connected to the first guide rod (28), a first threaded rod (210) threadedly connected to the main housing body (1), and a first turntable (211) fixedly connected to one end of the first threaded rod (210). The end of the first threaded rod (210) away from the first turntable (211) is rotatably connected to the first snap block (29). The first snap block (29) is snapped onto the first connecting buckle (27). The first turntable (211) is used to adjust the rotation of the first threaded rod (210). When the first threaded rod (210) rotates, it pushes the first snap block (29) closer to or away from the first connecting buckle (27).

5. The insulating liquid metering device according to claim 1, characterized in that: The second fastening assembly includes a second connecting buckle (212) fixedly connected to the main housing body (1), a second guide rod (213) slidably connected to the sub-housing body (4), a second snap block (214) fixedly connected to the second guide rod (213), a second threaded rod (215) threadedly connected to the sub-housing body (4), a second turntable (216) fixedly connected to the second threaded rod (215), one end of the second threaded rod (215) away from the second turntable (216) being rotatably connected to the second snap block (214), the second snap block (214) being snapped onto the second connecting buckle (212), the second turntable (216) being used to drive the second threaded rod (215) to rotate, and when the second threaded rod (215) rotates, it pushes the second snap block (214) away from or closer to the second connecting buckle (212).

6. The insulating liquid metering and dispensing device according to claim 1, characterized in that: The filling port assembly includes an electrically controlled valve body (217) that is detachably mounted on the inner liner (21) of the storage tank and a filling head body (218) that is fixedly connected to the electrically controlled valve body (217).

7. The insulating liquid metering and dispensing device according to claim 1, characterized in that: The inlet insulation plate includes an installation rod (31) installed on the inner liner (21) of the storage tank and an inlet heat insulation plate (32) fixedly connected to the installation rod (31). The sealing plate assembly is installed on the inlet heat insulation plate (32).

8. The insulating liquid metering device according to claim 7, characterized in that: The sealing plate assembly includes a conveying pipe (33) fixedly connected to the inlet heat insulation plate (32), a cover (34) rotatably connected to the conveying pipe (33), and a torsion spring (35) fixedly connected between the conveying pipe (33) and the cover (34).

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