Liquid nitrogen tank pail

Abstract

The utility model discloses a liquid nitrogen tank pail which comprises a pail body, a round bottom plate of the pail body comprises a door plate capable of being opened in a rotating mode, a fixed lifting pipe is arranged on the upper portion of the side, facing the door plate, of the pail body, a pull rod capable of sliding up and down is arranged in the lifting pipe, a bent head is arranged at the upper end of the pull rod and can be placed at the upper end of the lifting pipe in a lap joint mode, and a spring is arranged at the bottom end of the pull rod. The spring is connected with the middle of the arc-shaped edge of the door plate. The door plate is smaller than the semicircular plate and rotates through a hinge. The spring is fixedly connected with the pull rod and the door plate. According to the liquid nitrogen tank pail, when the liquid level of liquid nitrogen in a liquid nitrogen tank is low, the liquid nitrogen can be conveniently taken out as much as possible, waste is reduced, the liquid nitrogen tank is prevented from being poured out, operation is easy and safe, and high practical value and popularization value are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid nitrogen tank lifting buckets, and specifically refers to a liquid nitrogen tank lifting bucket. Background Art

[0002] Studying the specific surface area, pore size, pore volume and adsorption properties of microporous and mesoporous materials such as coal, rock minerals, and materials science is an important way to develop and utilize reservoir evaluations of coal, shale gas, petroleum, etc. and to study the physical and chemical properties of materials. However, obtaining these data requires liquid nitrogen low-temperature adsorption test analysis. Liquid nitrogen low-temperature adsorption requires transferring liquid nitrogen from a liquid nitrogen tank to a test tube, which requires the use of a liquid nitrogen lifting bucket.

[0003] Since the inner diameter of the liquid nitrogen tank opening is relatively small, the lifting bucket can only be used to pick up liquid nitrogen vertically up and down. The ladle of the liquid nitrogen lifting bucket is usually a cylindrical container with a certain height. When the liquid nitrogen in the liquid nitrogen tank drops to a certain height, the liquid nitrogen can no longer be taken out with the lifting bucket and cannot be conveniently transferred to the test tube, resulting in waste of liquid nitrogen. If the liquid nitrogen in the liquid nitrogen tank is directly poured into the test tube, the liquid nitrogen is likely to spill, which is relatively dangerous. Therefore, the existing liquid nitrogen tank lifting bucket needs to be improved. Content of the Utility Model

[0004] The purpose of the utility model is to provide a liquid nitrogen tank lifting bucket to solve the problems raised in the above background art.

[0005] To solve the above technical problems, the utility model provides the following technical solutions:

[0006] A liquid nitrogen tank lifting bucket of the utility model includes a lifting bucket body. The circular bottom plate of the lifting bucket body includes a door plate that can be rotated and opened. A fixed lifting tube is provided on the upper part of one side of the lifting bucket body facing the door plate. A pull rod that can slide up and down is provided in the lifting tube. A bent head is provided at the upper end of the pull rod, and the bent head can be placed on the upper end of the lifting tube. A spring is provided at the bottom end of the pull rod, and the spring is connected to the middle of the arc edge of the door plate.

[0007] As an improvement, the door plate is smaller than a semi-circular plate and rotates through a hinge.

[0008] As an improvement, the spring is fixedly connected to the pull rod and the door plate.

[0009] The advantages of the present utility model compared with the prior art are as follows: When there is a relatively large amount of liquid nitrogen in the liquid nitrogen tank, one can directly hold the lifting tube and use the bucket body to take liquid nitrogen. The pull rod remains stationary all the time, and the pulling force of the spring keeps the door panel tightly closed. When there is a relatively small amount of liquid nitrogen in the liquid nitrogen tank, hold the lifting tube and immerse the bottom of the bucket body in the liquid nitrogen. Then pull the bent head away from the placement position, turn it slightly, and push the pull rod downward. A part of the door panel at the bottom of the bucket body opens, and the liquid nitrogen enters the bucket. Then pull the lifting rod upward to make the bent head return to the placement position, and the door panel closes tightly. Hold the lifting tube and lift the bucket body out of the liquid nitrogen tank, and the liquid nitrogen is taken out.

[0010] This liquid nitrogen tank bucket can conveniently take out as much liquid nitrogen as possible when the liquid nitrogen level in the liquid nitrogen tank is relatively low, reduce waste, avoid pouring the liquid nitrogen tank, and has simple and safe operation, with high practical value and promotion value. Brief Description of the Drawings

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings listed below are only some structural schematic diagrams of the present utility model, rather than all of them.

[0012] Figure 1 is a structural schematic diagram of a liquid nitrogen tank bucket of the present utility model Figure 1 .

[0013] Figure 2 is a structural schematic diagram of a liquid nitrogen tank bucket of the present utility model Figure 2 .

[0014] Figure 3 is a top view of a liquid nitrogen tank bucket of the present utility model.

[0015] Figure 4 is a bottom view of a liquid nitrogen tank bucket of the present utility model.

[0016] Reference Signs:

[0017] Bucket body 1; Door panel 2; Lifting tube 3; Pull rod 4; Bent head 5; Spring 6; Detailed Description of the Embodiments

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0019] In the description of the embodiments of the present utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0020] In addition, if terms such as "first", "second", "third", etc. appear, they are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance. If terms such as "horizontal", "vertical", "hanging" and other terms do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0021] In the description of the embodiments of the present utility model, if terms such as "a plurality of" and "several" appear, they represent at least two.

[0022] In the description of the embodiments of the present utility model, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected", "connected" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0023] This embodiment will be described in detail with reference to the attached Figures 1 to 4 , a liquid nitrogen tank lifting bucket.

[0024] A liquid nitrogen tank lifting bucket in this embodiment includes a lifting bucket body 1. The circular bottom plate of the lifting bucket body 1 includes a door panel 2 that can be rotated and opened. On the upper part of one side of the lifting bucket body 1 facing the door panel 2, a fixed lifting pipe 3 is provided. A pull rod 4 that can slide up and down is provided in the lifting pipe 3. A bent head 5 is provided at the upper end of the pull rod 4. The bent head 5 can be placed on the upper end of the lifting pipe 3. A spring 6 is provided at the bottom end of the pull rod 4. The spring 6 is connected to the middle of the arc edge of the door panel 2.

[0025] The door panel 2 is smaller than a semi-circular plate and is rotated by a hinge.

[0026] The spring 6 is fixedly connected to the pull rod 4 and the door panel 2.

[0027] In specific implementation, when there is a relatively large amount of liquid nitrogen in the liquid nitrogen tank, one can directly hold the lifting tube 3 and use the bucket body 1 to take the liquid nitrogen. The pull rod 4 remains stationary all the time, and the pulling force of the spring 6 keeps the door panel 2 tightly closed. When there is a relatively small amount of liquid nitrogen in the liquid nitrogen tank, hold the lifting tube 3 and immerse the bottom of the bucket body 1 into the liquid nitrogen. Then pull the bent head 5 away from the placement position, turn it slightly and then push down the pull rod 4. A part of the door panel 2 at the bottom of the bucket body 1 will open, and the liquid nitrogen will enter the bucket. Then pull up the lifting rod 4 to make the bent head 5 return to the placement position, and the door panel 2 closes tightly. Hold the lifting tube 3 and lift the bucket body 1 out of the liquid nitrogen tank, and the liquid nitrogen is taken out.

[0028] The above description of the present invention and its implementation manner is not restrictive. The actual protection scope is not limited thereto. Any changes or substitutions that can be easily thought of by any person skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claimed rights.

Claims

1. A liquid nitrogen tank lifting bucket, characterized in that, It includes a bucket body (1). The circular bottom plate of the bucket body (1) includes a door panel (2) that can be rotated and opened. On the upper part of one side of the bucket body (1) facing the door panel (2), there is a fixed lifting tube (3). A pull rod (4) that can slide up and down is arranged in the lifting tube (3). The upper end of the pull rod (4) is provided with a bent head (5), and the bent head (5) can be placed on the upper end of the lifting tube (3). A spring (6) is arranged at the bottom end of the pull rod (4), and the spring (6) is connected to the middle of the arc-shaped edge of the door panel (2).

2. The nitrogen liquid tank bucket according to claim 1, characterized in that, The door panel (2) is smaller than a semi-circular plate and rotates through a hinge.

3. A liquid nitrogen tank lifting bucket according to claim 1, characterized in that, The spring (6) is fixedly connected to the pull rod (4) and the door panel (2).

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