EP pipe weighing device

By designing a weighing device including an outer cylinder, an inner cylinder and a cone, the problem of weighing EP pipes in a standing position is solved, and the functions of simple self-standing hanging weighing and weighing while adding samples are realized.

CN223389268UActive Publication Date: 2025-09-26HUADU DISTRICT GUANGZHOU CITY PEOPLES HOSPITAL
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Patent Information

Application Number
CN202422939515.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-09-26
Estimated Expiration
2034-11-29

AI Technical Summary

Technical Problem

The prior art lacks specialized tools to assist in weighing EP tubes in a standing position, resulting in inconvenience in weighing.

Method used

A weighing device including an outer cylinder, an inner cylinder and a cone is designed. The outer cylinder is coaxial with the inner cylinder, and a gradually enlarging annular plate is provided on the inner wall of the cone. The EP tube can be placed in a self-standing position and clamped on the annular plate through the tube cover to achieve self-standing hanging weighing.

Benefits of technology

It realizes the self-supporting hanging weighing of EP pipes of different sizes and specifications, simplifies the weighing process, and supports weighing while adding samples.

✦ Generated by Eureka AI based on patent content.

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Abstract

The EP pipe weighing device comprises an outer cylinder and an inner cylinder arranged in the outer cylinder, the diameter of the outer cylinder is larger than that of the inner cylinder, the upper end of the outer cylinder is higher than that of the inner cylinder, a conical body is arranged between the upper end of the outer cylinder and the upper end of the inner cylinder, the lower end of the conical body is provided with a lower through hole with the same diameter as that of the inner cylinder, and the lower end of the conical body is provided with an upper through hole with the same diameter as that of the inner cylinder. An upper through hole with the same diameter as the outer cylinder body is formed in the upper end of the conical body, and a plurality of annular plates which are stacked at intervals and have different inner diameters are arranged on the inner wall of the conical body. According to the principle of the utility model, the weighing device is placed on the electronic scale, the EP pipe to be weighed is put into the weighing device from top to bottom in a self-standing posture, the EP pipe can directly penetrate through the weighing device when the maximum diameter of the EP pipe is smaller than the inner diameter of the annular plate, and when the maximum diameter of the EP pipe is larger than the inner diameter of the annular plate, the EP pipe is clamped on the annular plate through the pipe cover, and at the moment, the EP pipe is in a self-standing hanging state; the weight of the removing device is the weight of the EP pipe.
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Description

Technical Field

[0001] The utility model relates to a laboratory appliance, in particular to an EP tube weighing device. Background Art

[0002] Small centrifuge tubes, also known as EP (Eppendorf) tubes, are used with microcentrifuges to separate and centrifuge trace amounts of reagents. EP tubes come in various sizes and specifications. After centrifugation, EP tubes need to be aligned and weighed. Currently, there are no specialized tools to assist with weighing EP tubes in a standing position. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide an EP pipe weighing device which can assist in weighing EP pipes of different sizes in a standing posture.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: an EP tube weighing device, comprising an outer cylinder and an inner cylinder arranged in the outer cylinder, the diameter of the outer cylinder is larger than the diameter of the inner cylinder, the upper end of the outer cylinder is higher than the upper end of the inner cylinder, a cone is provided between the upper end of the outer cylinder and the upper end of the inner cylinder, the lower end of the cone is provided with a lower through hole with the same diameter as the inner cylinder, the upper end of the cone is provided with an upper through hole with the same diameter as the outer cylinder, and the inner wall of the cone is provided with a plurality of stacked and spaced annular plates with different inner diameters. The principle of the utility model is as follows: a weighing device is placed on an electronic scale, and the EP tube to be weighed is placed into the weighing device from top to bottom in a self-standing posture. When the maximum diameter of the EP tube is smaller than the inner diameter of the annular plate, the EP tube can pass through directly. When the maximum diameter of the EP tube is larger than the inner diameter of the annular plate, the EP tube is clamped on the annular plate at that location through the tube cover. At this time, the EP tube is in a self-standing hanging state, and the weight of the EP tube is obtained by subtracting the weight of the device. In addition, after the EP tube is placed on the weighing device, it can be weighed while adding samples.

[0005] As an improvement, the inner diameter of the annular plate gradually increases from bottom to top.

[0006] As an improvement, the distance between the annular plates gradually increases from bottom to top.

[0007] Compared with the prior art, the present invention has the following beneficial effects:

[0008] Place the weighing device on the electronic scale, and put the EP tube to be weighed into the weighing device from top to bottom in a self-standing posture. When the maximum diameter of the EP tube is smaller than the inner diameter of the annular plate, it can pass directly. When the maximum diameter of the EP tube is larger than the inner diameter of the annular plate, the EP tube is stuck on the annular plate at that location through the tube cover. At this time, the EP tube is in a self-standing hanging state. The weight of the EP tube is obtained by subtracting the weight of the device. In addition, after the EP tube is placed on the weighing device, it can be weighed while adding samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a cross-sectional view of the utility model.

[0010] Figure 2 This is a state diagram used in the present utility model. DETAILED DESCRIPTION

[0011] The present invention will be further described below in conjunction with the accompanying drawings.

[0012] like Figure 1 、 2 As shown, an EP tube weighing device includes an outer cylinder 1 and an inner cylinder 2 disposed within the outer cylinder 1. The outer cylinder 1 and the inner cylinder 2 are coaxial. The diameter of the outer cylinder 1 is larger than the diameter of the inner cylinder 2, and the upper end of the outer cylinder 1 is higher than the upper end of the inner cylinder 2. A cone 3 is disposed between the upper ends of the outer cylinder 1 and the upper ends of the inner cylinder 2. The lower end of the cone 3 is provided with a lower through hole having the same diameter as the inner cylinder 2, and the upper end of the cone 3 is provided with an upper through hole having the same diameter as the outer cylinder 1. The inner wall of the cone 3 is provided with a plurality of stacked and spaced annular plates 4 having different inner diameters. The inner diameters of the annular plates 4 gradually increase from bottom to top, and the distance between the annular plates 4 gradually increases from bottom to top.

[0013] The principle of this utility model: Figure 2 As shown, the weighing device is placed on the electronic scale, and the EP tube 5 to be weighed is placed into the weighing device from top to bottom in a self-standing posture. When the maximum diameter of the EP tube 5 is smaller than the inner diameter of the annular plate 4, it can pass directly. When the maximum diameter of the EP tube 5 is larger than the inner diameter of the annular plate 4, the EP tube 5 is clamped on the annular plate 4 at that location through the tube cover. At this time, the EP tube 5 is in a self-standing hanging state, and the weight of the EP tube minus the weight of the device is the weight of the EP tube. In addition, after the EP tube is placed on the weighing device, it can be weighed while adding samples.

Claims

1. An EP tube weighing device, characterized by: It includes an outer cylinder and an inner cylinder arranged in the outer cylinder, the diameter of the outer cylinder is larger than the diameter of the inner cylinder, the upper end of the outer cylinder is higher than the upper end of the inner cylinder, a cone is provided between the upper end of the outer cylinder and the upper end of the inner cylinder, the lower end of the cone is provided with a lower through hole with the same diameter as the inner cylinder, the upper end of the cone is provided with an upper through hole with the same diameter as the outer cylinder, and the inner wall of the cone is provided with a plurality of stacked and spaced annular plates with different inner diameters.

2. The EP tube weighing device according to claim 1, characterized in that: The inner diameter of the annular plate gradually increases from bottom to top.

3. The EP tube weighing device according to claim 1, characterized in that: The distance between the annular plates increases gradually from bottom to top.