Vacuumizing device for interlayer of low-temperature storage tank

Abstract

The utility model discloses a low-temperature storage tank interlayer vacuumizing device which comprises a telescopic pipe, an air suction pipe, a limiting frame, an air exhaust cover, a nitrogen tank, an air exhaust tank and an air exhaust tank, the nitrogen tank and the air exhaust tank are arranged on the two sides of the air exhaust tank respectively, the detachable air exhaust cover is arranged on the top of the air exhaust tank, the air suction pipe is arranged in the middle of the top end of the air exhaust cover, and the limiting frame is arranged on the air suction pipe. A telescopic pipe is arranged in the air suction pipe, limiting frames are arranged on the two sides of the air exhaust cover, adjusting rods are arranged on the limiting frames, and a suction cup and an adjusting handle are arranged at the two ends of each adjusting rod respectively. The low-temperature storage tank is provided with the exhaust tank, the nitrogen tank and the exhaust tank are arranged on the two sides of the exhaust tank respectively, nitrogen can be conveniently supplied, air can be conveniently exhausted through the nitrogen tank and the exhaust tank, the air pressure of the interlayer of the low-temperature storage tank can be conveniently adjusted, and the exhaust tank is simple in structure, convenient to carry and use and light and convenient to use; a plug is arranged at the bottom of the air exhaust cover, the air exhaust tank is convenient to install through the plug, and limiting frames are arranged on the two sides of the air exhaust tank.

Description

Technical Field

[0001] The utility model relates to the field of vacuum pumping devices, in particular to a vacuum pumping device for a low-temperature storage tank interlayer. Background Art

[0002] The tank interlayer vacuum device is used to extract the air in the tank interlayer. In order to ensure the thermal insulation effect, the low-temperature tank is provided with an inner layer and an outer layer, and the interlayer between the inner layer and the outer layer is filled with pearl salt, and the filling of pearl salt and vacuuming are carried out at the same time, and the vacuuming operation is carried out through the vacuum tube structure;

[0003] For example, the authorized patent with publication number CN210164676U (low-temperature storage tank sandwich vacuum tube structure): including a suction tube, a pipe joint is provided at the left end of the suction tube, the right end of the suction tube is connected to the exhaust fan, a screen barrel is fixedly installed on the inner side of the suction tube through a welding plate, a rotating shaft is rotatably installed on the inner side of the screen barrel, a fan blade is fixedly installed on the left end of the rotating shaft, and a brush plate is fixedly installed on the outer wall of the rotating shaft. The vacuum tube structure has a simple structure and effectively solves the problem that during the vacuum process, the filler blocks the filter structure, thereby obstructing the airflow, increasing the power of the exhaust fan, and easily causing damage to the exhaust fan, thereby ensuring the service life of the exhaust fan;

[0004] The above-mentioned prior art is large in size, inconvenient to carry and use, and inconvenient to install and fix. It is basically connected by a hose, and the vacuum tank cannot be directly adsorbed and fixed to the tank body, resulting in low vacuum efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a low-temperature storage tank interlayer vacuum pumping device to solve the problems proposed in the above background technology that the device is large in size, inconvenient to carry and use, inconvenient to install and fix, basically uses a hose for connection, and cannot directly adsorb and fix the vacuum tank to the tank body, resulting in low vacuum efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-temperature storage tank interlayer vacuum pumping device, comprising a telescopic tube, an air suction pipe, a limiting frame, an exhaust hood, a nitrogen tank, an exhaust tank and an exhaust tank, wherein a nitrogen tank and an exhaust tank are respectively provided on both sides of the exhaust tank, a detachable exhaust hood is provided on the top of the exhaust tank, an air suction pipe is provided in the middle of the top of the exhaust hood, a telescopic tube is provided inside the exhaust pipe, limiting frames are provided on both sides of the exhaust hood, an adjusting rod is provided on the limiting frame, and a suction cup and an adjusting handle are respectively provided at both ends of the adjusting rod.

[0007] In a further embodiment, a plug is provided at the middle portion of the bottom end of the vacuum hood, and the plug is threadedly fixed to the middle portion of the top end of the vacuum tank.

[0008] In a further embodiment, a nitrogen inlet is provided at an upper position on one side of the nitrogen tank, and an exhaust port is provided at a lower position on one side of the exhaust tank.

[0009] In a further embodiment, a threaded hole is provided in the middle of the limiting frame, and the adjusting rod is transmission-connected to the threaded hole screw.

[0010] In a further embodiment, a piston head is provided at the end of the telescopic tube, and the piston head is slidably embedded in the inner cavity of the suction pipe.

[0011] In a further embodiment, a vacuum pump is provided inside the vacuum tank, and nitrogen tanks and exhaust tanks are respectively connected on both sides of the vacuum pump.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with a vacuum tank, and a nitrogen tank and an exhaust tank are respectively provided on both sides of the vacuum tank. The nitrogen tank and the exhaust tank are used to conveniently supply nitrogen and exhaust air, and conveniently adjust the air pressure of the interlayer of the low-temperature storage tank. The vacuum tank has a simple structure, is convenient to carry and use, and is relatively light to use.

[0014] 2. The utility model has a plug at the bottom of the vacuum hood, which facilitates the installation of the vacuum tank. Limit frames are provided on both sides of the vacuum tank, and an adjusting rod is provided on the limit frame. An adjusting handle and a suction cup are provided at both ends of the adjusting rod, respectively, by which the vacuum tank can be manually adjusted and fixed by adsorption through the suction cup, which greatly facilitates installation and disassembly. A telescopic tube is provided inside the suction pipe, so that the height of the suction end can be adjusted, which is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a low-temperature storage tank interlayer vacuum pumping device of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the vacuum hood of the utility model;

[0017] Figure 3 It is a top view of the vacuum tank of the utility model;

[0018] Figure 4 It is a structural schematic diagram of part A of the utility model.

[0019] In the figure: 1. telescopic tube; 2. suction pipe; 3. suction cup; 4. limit frame; 5. adjustment rod; 6. adjustment handle; 7. exhaust hood; 8. nitrogen tank; 9. exhaust tank; 10. exhaust tank; 11. threaded hole; 12. plug; 13. piston head. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] See also Figure 1-4 The utility model provides an embodiment: a low-temperature storage tank interlayer vacuum pumping device, comprising a telescopic tube 1, an air suction pipe 2, a limiting frame 4, an exhaust hood 7, a nitrogen tank 8, an exhaust tank 9 and an exhaust tank 10, wherein the nitrogen tank 8 and the exhaust tank 10 are respectively arranged on both sides of the exhaust tank 9, a detachable exhaust hood 7 is arranged on the top of the exhaust tank 9, an air suction pipe 2 is arranged in the middle of the top of the exhaust hood 7, a telescopic tube 1 is arranged inside the exhaust pipe 2, both sides of the exhaust hood 7 are provided with limiting frames 4, the limiting frames 4 are provided with an adjusting rod 5, and the two ends of the adjusting rod 5 are respectively provided with a suction cup 3 and an adjusting handle 6.

[0022] The nitrogen tank 8 and the exhaust tank 10 are used for storing nitrogen and discharging air respectively, the exhaust hood 7 is used for convenient exhaust, the suction pipe 2 is used for suction, and the length of the suction head can be adjusted through the telescopic tube 1. The installation of the adjusting rod 5 is convenient through the limit frame 4. The adjusting handle 6 is used to manually control the rotation of the adjusting rod 5, so that the adjusting rod 5 controls the adsorption and fixation of the suction cup 3.

[0023] Furthermore, a plug 12 is provided at the middle of the bottom end of the exhaust hood 7 , and the plug 12 is threadedly fixed to the middle of the top end of the exhaust tank 9 , so that the plug 12 facilitates the assembly of the exhaust hood 7 and the exhaust tank 9 .

[0024] Furthermore, a nitrogen inlet is provided at an upper position on one side of the nitrogen tank 8, and an exhaust port is provided at a lower position on one side of the exhaust tank 10. The nitrogen tank 8 is used to store nitrogen, and the exhaust tank 10 is used to collect and discharge the extracted air.

[0025] Furthermore, a threaded hole 11 is provided in the middle of the limiting frame 4 , and the adjusting rod 5 is screw-connected to the threaded hole 11 , so that the threaded hole 11 facilitates the installation of the adjusting rod 5 .

[0026] Furthermore, a piston head 13 is provided at the end of the telescopic tube 1 , and the piston head 13 is slidably embedded in the inner cavity of the air intake pipe 2 , so that the telescopic tube 1 is conveniently slidably connected with the inner cavity of the air intake pipe 2 through the piston head 13 .

[0027] Furthermore, a vacuum pump is provided inside the vacuum tank 9, and a nitrogen tank 8 and an exhaust tank 10 are respectively connected to the vacuum pump on both sides.

[0028] Working principle: When in use, the nitrogen tank 8 and the exhaust tank 10 are respectively arranged on both sides of the suction tank 9, the bottom end of the exhaust hood 7 is inserted and fixed with the middle part of the top of the suction tank 9 through the plug 12, the telescopic tube 1 is manually adjusted to be telescopic in the suction pipe 2, and the end of the telescopic tube 1 is adjusted to be connected with the air hole of the interlayer of the low-temperature storage tank, and the gas is extracted through the telescopic tube 1 and introduced into the suction tank 9, and discharged into the exhaust tank 10 through the suction tank 9. The adjusting rod 5 is manually controlled to rotate by adjusting the handle 6, so that the adjusting rod 5 and the threaded hole 11 in the middle of the limit frame 4 are controlled by the screw rod transmission, so that the adjusting rod 5 controls the suction cup 3 to be adsorbed and fixed to the low-temperature storage tank, nitrogen can be stored through the nitrogen tank 8, and nitrogen can be supplied to the suction pipe 2, and nitrogen is discharged into the interlayer through the suction pipe 2, and the support seat at the bottom of the suction tank 9 is used to facilitate the support and placement of the suction tank 9.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A low-temperature storage tank interlayer vacuum pumping device, comprising a telescopic tube (1), an air suction pipe (2), a limit frame (4), an air extraction hood (7), a nitrogen tank (8), an air extraction tank (9) and an exhaust tank (10), characterized in that: A nitrogen tank (8) and an exhaust tank (10) are respectively provided on both sides of the vacuum tank (9); a detachable vacuum hood (7) is provided on the top of the vacuum tank (9); a suction pipe (2) is provided at the middle of the top of the vacuum hood (7); a telescopic pipe (1) is provided inside the suction pipe (2); a limiting frame (4) is provided on both sides of the vacuum hood (7); an adjusting rod (5) is provided on the limiting frame (4); and a suction cup (3) and an adjusting handle (6) are respectively provided at both ends of the adjusting rod (5).

2. A low-temperature storage tank interlayer vacuum pumping device according to claim 1, characterized in that: A plug (12) is provided at the middle of the bottom end of the vacuum hood (7), and the plug (12) is threadedly fixed to the middle of the top end of the vacuum tank (9).

3. The low-temperature storage tank interlayer vacuum pumping device according to claim 1, characterized in that: A nitrogen inlet is provided at an upper position on one side of the nitrogen tank (8), and an exhaust port is provided at a lower position on one side of the exhaust tank (10).

4. The low-temperature storage tank interlayer vacuum pumping device according to claim 1, characterized in that: A threaded hole (11) is provided in the middle of the limiting frame (4), and the adjusting rod (5) is screw-rod-connected to the threaded hole (11).

5. The low-temperature storage tank interlayer vacuum pumping device according to claim 1, characterized in that: The end of the telescopic tube (1) is provided with a piston head (13), and the piston head (13) is slidably embedded in the inner cavity of the air intake pipe (2).

6. The low-temperature storage tank interlayer vacuum pumping device according to claim 1, characterized in that: An air pump is provided inside the air extraction tank (9), and a nitrogen tank (8) and an exhaust tank (10) are respectively provided on both sides of the air extraction pump for connection.

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