Liquid nitrogen tank convenient to clean

Abstract

The liquid nitrogen tank convenient to clean comprises a liquid nitrogen tank barrel body, the upper end of the liquid nitrogen tank barrel body is connected with a sealing barrel head through a first threaded connection part, an operation machine barrel is arranged at the upper end of the sealing barrel head, and the lower end of a transmission shaft is fixedly connected with a scrubbing mechanism through a fixing transverse rod. And a brushing structure is arranged on the outer surface of the brushing mechanism, the brushing structure makes contact with the inner wall of the liquid nitrogen tank barrel in an attached mode, a cleaning agent inlet pipe is installed at the upper end of the liquid nitrogen tank barrel, and a cleaning agent discharging pipe is installed at the bottom end of the liquid nitrogen tank barrel. According to the liquid nitrogen tank, the liquid nitrogen tank barrel is designed to be assembled conveniently and rapidly, the liquid nitrogen tank barrel can be assembled and disassembled conveniently and rapidly, meanwhile, the scrubbing mechanism which can be detachably installed is arranged, the sealing barrel head and the liquid nitrogen tank barrel are disassembled, the scrubbing mechanism is installed in the liquid nitrogen tank barrel in a built-in mode, and the scrubbing mechanism and the rotating shaft pipe are installed in a rapid butt joint mode. The inner wall of the liquid nitrogen tank barrel can be conveniently and rotationally brushed, and the cleaning effect of the interior of the liquid nitrogen tank barrel is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid nitrogen tanks, in particular to a liquid nitrogen tank convenient for cleaning. Background Technique

[0002] The service life of a liquid nitrogen tank is not only related to the production quality, but also related to the maintenance during daily use. After the liquid nitrogen tank is used, it needs to be washed and dried. Otherwise, it will shorten the service life of the liquid nitrogen tank and affect the use of liquid nitrogen when it is refilled with liquid nitrogen again. When cleaning, the things stored in the storage and transportation container should be taken out in advance. After draining the liquid nitrogen, it should be placed for two or three days until the temperature in the liquid nitrogen tank slowly rises to about 0 degrees. Then rinse it with warm water at 40°C - 50°C, and neutral water should be used for rinsing. After wiping with a cloth, rinse it with clean water. After completion, it needs to be placed upside down and wait for it to dry naturally. It can be used continuously only when it is determined that there is no moisture in the liquid nitrogen tank. However, the bottle mouth of the liquid nitrogen tank is small and has a certain depth, and the inner wall of the inner tank is very difficult to clean, and most of the dirt accumulates on the inner wall of the inner tank.

[0003] The Chinese authorized patent document with the publication number of CN216556460U relates to the technical field of liquid nitrogen tank cleaning, and in particular to a liquid nitrogen tank convenient for cleaning, including a tank body. The tank body includes an upper end cover, a tank body and a lower end cover. Threads are provided at both the upper and lower ends of the tank body. The upper end cover is rotatably installed at the upper end of the tank body, and the lower end cover is rotatably installed at the lower end of the tank body. Both the upper end cover and the lower end cover can be disassembled arbitrarily. Sealing rings are provided at the edges of the upper end cover and the lower end cover. The sealing rings are used to ensure airtightness and prevent the cold in the tank body from dissipating. A bottle cap is provided on the surface of the upper end cover, and a groove is provided on the surface of the lower end cover. The groove is used to place the inner tank. The upper and lower end covers of the present utility model are detachable, and the inner tank can be conveniently taken out for cleaning, making the inner tank cleaner and extending the service life.

[0004] In the above-mentioned prior art, the inner wall of the cylinder of the liquid nitrogen tank cannot be automatically brushed, resulting in unclean cleaning of the inner wall of the liquid nitrogen tank. Therefore, it is necessary to develop a new type of liquid nitrogen tank convenient for cleaning. Content of the Utility Model

[0005] The purpose of the present utility model is to provide a liquid nitrogen tank convenient for cleaning, so as to solve the problem that the inner wall of the cylinder of the liquid nitrogen tank cannot be automatically brushed in the prior art, resulting in unclean cleaning of the inner wall of the liquid nitrogen tank as mentioned in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solution: A liquid nitrogen tank that is easy to clean, including a liquid nitrogen tank barrel body, the upper end of the liquid nitrogen tank barrel body is connected with a sealing cylinder head through a first threaded connection part, an operating machine barrel is arranged at the upper end of the sealing cylinder head, a driving motor is installed inside the operating machine barrel, the output end of the driving motor is connected with a transmission shaft through a rotating shaft tube, the transmission shaft and the rotating shaft tube are of a detachable structure, the lower end of the transmission shaft is fixedly connected with a brushing mechanism through a fixed cross bar, a brush hair structure is arranged on the outer surface of the brushing mechanism, and the brush hair structure is in close contact with the inner wall of the liquid nitrogen tank barrel body. A cleaning agent inlet pipe is installed at the upper end of the liquid nitrogen tank barrel body, and a cleaning agent discharge pipe is installed at the bottom end of the liquid nitrogen tank barrel body.

[0007] Based on the above, a threaded end head is arranged at the upper end of the transmission shaft, and the threaded end head is fixedly connected with the inside of the rotating shaft tube through thread screwing.

[0008] Based on the above, a cleaning agent inlet valve is installed on the cleaning agent inlet pipe, and a cleaning agent discharge valve is installed on the cleaning agent discharge pipe.

[0009] Based on the above, the lower end of the liquid nitrogen tank barrel body is connected with a barrel body base through a second threaded connection part, and a bearing bottom plate is arranged at the bottom end of the barrel body base.

[0010] Based on the above, a pressure monitoring gauge is arranged on the front surface of the liquid nitrogen tank barrel body.

[0011] Based on the above, a liquid nitrogen inlet pipe is arranged on the front surface of the liquid nitrogen tank barrel body, and a liquid nitrogen discharge pipe is arranged on the side surface of the liquid nitrogen tank barrel body.

[0012] Based on the above, sealing covers are arranged at the front ends of the liquid nitrogen inlet pipe and the liquid nitrogen discharge pipe.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] Through the convenient assembly design of the liquid nitrogen tank barrel body, the present utility model can facilitate its rapid assembly and disassembly. At the same time, a detachable and installable brushing mechanism is provided. By disassembling the sealing cylinder head from the liquid nitrogen tank barrel body, and then installing the brushing mechanism inside the liquid nitrogen tank barrel body and quickly docking and installing it with the rotating shaft tube, it can facilitate the rotational brushing operation of the inner wall of the liquid nitrogen tank barrel body and improve the cleaning effect inside the liquid nitrogen tank barrel body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall front view of the present utility model;

[0016] Figure 2 It is the structural schematic diagram of the present utility model;

[0017] Figure 3 It is the internal installation structural schematic diagram of the present utility model;

[0018] Figure 4 This is a schematic diagram of the partial structure of the present utility model.

[0019] In the figure: 1, sealing cylinder head; 2, first threaded connection part; 3, liquid nitrogen inlet pipe; 4, liquid nitrogen discharge pipe; 5, sealing cover; 6, cleaning agent discharge valve; 7, cleaning agent discharge pipe; 8, working machine cylinder; 9, cleaning agent inlet pipe; 10, cleaning agent inlet valve; 11, liquid nitrogen tank cylinder body; 12, air pressure monitoring gauge; 13, second threaded connection part; 14, cylinder body base; 15, bearing bottom plate; 16, drive motor; 17, rotating shaft tube; 18, fixed cross bar; 19, transmission shaft; 20, threaded end; 21, brushing mechanism; 22, brush hair structure. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0021] Please refer to Figures 1-4 , an embodiment provided by the present utility model: a liquid nitrogen tank convenient for cleaning, including a liquid nitrogen tank cylinder body 11. The upper end of the liquid nitrogen tank cylinder body 11 is connected with a sealing cylinder head 1 through a first threaded connection part 2. The upper end of the sealing cylinder head 1 is provided with a working machine cylinder 8. A drive motor 16 is installed inside the working machine cylinder 8. The output end of the drive motor 16 is connected with a transmission shaft 19 through a rotating shaft tube 17. The transmission shaft 19 and the rotating shaft tube 17 are of a detachable structure. The lower end of the transmission shaft 19 is fixedly connected with a brushing mechanism 21 through a fixed cross bar 18. The outer surface of the brushing mechanism 21 is provided with a brush hair structure 22. The brush hair structure 22 is in close contact with the inner wall of the liquid nitrogen tank cylinder body 11. A cleaning agent inlet pipe 9 is installed at the upper end of the liquid nitrogen tank cylinder body 11, and a cleaning agent discharge pipe 7 is installed at the bottom end of the liquid nitrogen tank cylinder body 11.

[0022] Furthermore, a threaded end 20 is provided at the upper end of the transmission shaft 19, and the threaded end 20 is fixedly connected with the inside of the rotating shaft tube 17 through thread screwing.

[0023] Furthermore, a cleaning agent inlet valve 10 is installed on the cleaning agent inlet pipe 9, and a cleaning agent discharge valve 6 is installed on the cleaning agent discharge pipe 7.

[0024] Furthermore, the lower end of the liquid nitrogen tank cylinder body 11 is connected with a cylinder body base 14 through a second threaded connection part 13, and a bearing bottom plate 15 is provided at the bottom end of the cylinder body base 14.

[0025] Furthermore, an air pressure monitoring gauge 12 is provided on the front surface of the liquid nitrogen tank cylinder body 11.

[0026] Furthermore, a liquid nitrogen inlet pipe 3 is provided on the front end surface of the liquid nitrogen tank cylinder body 11, and a liquid nitrogen discharge pipe 4 is provided on the side surface of the liquid nitrogen tank cylinder body 11.

[0027] Furthermore, sealing caps 5 are provided at the front ends of both the liquid nitrogen inlet pipe 3 and the liquid nitrogen discharge pipe 4.

[0028] Working principle: During use, a sealing cylinder head 1 is connected to the upper end of the liquid nitrogen tank cylinder body 11 through a first threaded connection portion 2. An operation cylinder barrel 8 is provided at the upper end of the sealing cylinder head 1. A driving motor 16 is installed inside the operation cylinder barrel 8. The output end of the driving motor 16 is connected to a transmission shaft 19 through a rotating shaft tube 17. The transmission shaft 19 and the rotating shaft tube 17 are of a detachable structure. The lower end of the transmission shaft 19 is fixedly connected to a brushing mechanism 21 through a fixed cross bar 18. A brush hair structure 22 is provided on the outer surface of the brushing mechanism 21. The brush hair structure 22 is in close contact with the inner wall of the liquid nitrogen tank cylinder body 11. Through the convenient assembly design of the liquid nitrogen tank cylinder body 11, it is convenient to quickly assemble and disassemble it. At the same time, a detachable brushing mechanism 21 is provided. By disassembling the sealing cylinder head 1 from the liquid nitrogen tank cylinder body 11, then installing the brushing mechanism 21 inside the liquid nitrogen tank cylinder body 11 and quickly docking and installing it with the rotating shaft tube 17, and then hermetically screwing and fixing the sealing cylinder head 1 to the liquid nitrogen tank cylinder body 11. Open the cleaning agent inlet valve 10, and send the cleaning reagent into the liquid nitrogen tank cylinder body 11 through the cleaning agent inlet pipe 9. Fill the entire liquid nitrogen tank cylinder body 11 with the cleaning agent and clean water. Then start the driving motor 16 to drive the brushing mechanism 21 to rotate, so as to prompt the brush hair structure 22 to quickly brush the inner wall of the liquid nitrogen tank cylinder body 11. After the brushing operation is completed, open the cleaning agent discharge valve 6, and discharge the cleaned sewage through the cleaning agent discharge pipe 7, thereby improving the cleaning effect inside the liquid nitrogen tank cylinder body 11.

[0029] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0030] The standard parts used in this application document can all be purchased from the market. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art for connection. Moreover, the machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, and no specific description will be made here.

[0031] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A liquid nitrogen tank that is easy to clean, comprising a liquid nitrogen tank barrel (11), characterized in that: The upper end of the liquid nitrogen tank barrel (11) is connected to a sealing barrel head (1) through a first threaded connection portion (2); an operating barrel (8) is arranged at the upper end of the sealing barrel head (1); a driving motor (16) is installed inside the operating barrel (8); an output end of the driving motor (16) is connected to a transmission shaft (19) through a rotating shaft tube (17); a detachable structure is formed between the transmission shaft (19) and the rotating shaft tube (17); a brushing mechanism (21) is fixedly connected to the lower end of the transmission shaft (19) through a fixed cross bar (18); a brush structure (22) is arranged on the outer surface of the brushing mechanism (21); the brush structure (22) is in close contact with the inner wall of the liquid nitrogen tank barrel (11); a cleaning agent inlet pipe (9) is installed at the upper end of the liquid nitrogen tank barrel (11); and a cleaning agent discharge pipe (7) is installed at the bottom end of the liquid nitrogen tank barrel (11).

2. The liquid nitrogen tank that is easy to clean according to claim 1, characterized in that: The upper end of the transmission shaft (19) is provided with a threaded end (20), and the threaded end (20) is screwed and fixed to the inside of the rotating shaft tube (17) through threads.

3. The liquid nitrogen tank that is easy to clean according to claim 1, characterized in that: The cleaning agent inlet pipe (9) is provided with a cleaning agent inlet valve (10), and the cleaning agent discharge pipe (7) is provided with a cleaning agent discharge valve (6).

4. The liquid nitrogen tank that is easy to clean according to claim 1, characterized in that: The lower end of the liquid nitrogen tank cylinder (11) is connected to a cylinder base (14) via a second threaded connection portion (13), and a bearing base plate (15) is provided at the bottom end of the cylinder base (14).

5. The liquid nitrogen tank that is easy to clean according to claim 1, characterized in that: A gas pressure monitoring gauge (12) is provided on the front end surface of the liquid nitrogen tank cylinder (11).

6. The liquid nitrogen tank that is easy to clean according to claim 1, characterized in that: A liquid nitrogen inlet pipe (3) is arranged on the front end surface of the liquid nitrogen tank barrel (11), and a liquid nitrogen discharge pipe (4) is arranged on the side surface of the liquid nitrogen tank barrel (11).

7. The liquid nitrogen tank that is easy to clean according to claim 6, characterized in that: The front ends of the liquid nitrogen inlet pipe (3) and the liquid nitrogen discharge pipe (4) are both provided with sealing covers (5).

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