Spherical die body

By providing nuts with external threads and internal threads on the outside of the boss of the spherical mold, the problem of debris entering the sphere during processing is solved, and the sealing and imaging quality are improved.

CN223143501UActive Publication Date: 2025-07-25SHANGHAI FULIDA TECH CO LTD
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Patent Information

Application Number
CN202422172022.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-04
Publication Date
2025-07-25
Estimated Expiration
2034-09-04

AI Technical Summary

Technical Problem

The existing spherical moulds are prone to bring debris into the spherical body during processing, and the opening is small and difficult to clean, which affects the imaging quality of the nuclear magnetic resonance equipment.

Method used

A spherical mold is designed, with external threads on the outside of the boss, the internal threads are connected in coordination with the nut, and are equipped with sealing gaskets to ensure sealing.

Benefits of technology

It avoids debris entering the sphere, ensures sealing, and improves the imaging quality of the nuclear magnetic resonance equipment.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223143501U_ABST
    Figure CN223143501U_ABST
Patent Text Reader

Abstract

The utility model discloses a spherical mold body which comprises a spherical mold main body, a boss is arranged on the spherical mold main body, a water filling nozzle is arranged in the boss, the water filling nozzle penetrates into the spherical mold main body, and external threads are arranged on the outer side of the boss. According to the spherical die body, the boss of the spherical die body is provided with the external threads, the external threads are directly formed on the outer side of the boss in a cutting mode, no cuttings enter the spherical die body from the water filling nozzle in the machining process, meanwhile, the internal threads of the nut are matched with the external threads of the boss, the nut and the boss are stably fixed, and the machining precision is improved. And the sealing gasket seals the water filling nozzle, so that the sealing performance is ensured.
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Description

Technical Field

[0001] The utility model belongs to the field of nuclear magnetic resonance equipment, and particularly relates to a spherical phantom. Background Art

[0002] The spherical phantom is used for imaging calibration of nuclear magnetic resonance equipment. Before equipment calibration, a solution with a certain ratio generally needs to be filled. Moreover, the volume, composition ratio and cleanliness of the solution affect the imaging quality.

[0003] In the related art, for the spherical phantom formed by rotational molding process, due to the characteristics of the rotational molding process, generally after integral molding, the water injection port is opened by drilling and threading, and at the same time, it is closed by matching with plastic screws and sealing washers. However, for the spherical phantom with internal threads, debris is easily brought into the sphere during processing, and the opening is small and not easy to clean, which affects the calibration imaging quality. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a spherical phantom to solve the problems in the prior art that for the spherical phantom with internal threads, debris is easily brought into the sphere during processing, and the opening is small and not easy to clean, which affects the calibration imaging quality.

[0005] To this end, the utility model provides a spherical phantom, including: a spherical phantom main body, a boss is arranged on the spherical phantom main body, a water injection port is arranged in the boss, the water injection port penetrates through to the inside of the spherical phantom main body, and an external thread is arranged on the outer side of the boss.

[0006] Preferably, it further includes a nut, and the nut is installed on the boss.

[0007] Preferably, an internal thread is arranged on the inner wall of the nut, and the internal thread is in fit connection with the external thread.

[0008] Preferably, a sealing gasket is arranged in the nut, and the sealing gasket is attached to the water injection port.

[0009] Preferably, the boss and the spherical phantom main body are integrally formed.

[0010] Preferably, the outer diameter range of the spherical phantom main body is 100 - 200 mm.

[0011] Preferably, the wall thickness range of the spherical phantom main body is 5 - 20 mm.

[0012] Preferably, the diameter range of the boss is 10 - 25 mm.

[0013] Preferably, the diameter range of the water injection port is 5 - 15 mm.

[0014] Preferably, the material of the spherical phantom main body is LLDPE low density linear polyethylene.

[0015] Beneficial effects:

[0016] 1. The utility model provides a spherical mold body. By providing an external thread on the boss of the spherical mold body, the external thread is directly formed by chip removal on the outside of the boss. During processing, no chips will enter the spherical mold body from the water injection port. At the same time, the internal thread of the nut is matched with the external thread of the boss to stably fix the nut and the boss, and the sealing gasket seals the water injection port to ensure the sealing performance. Description of the drawings

[0017] 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 following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of a spherical mold body provided by the present utility model.

[0019] Figure 2 It is a cross-sectional view of a spherical mold body provided by the present utility model.

[0020] In the figure, 1 is the spherical mold main body, 2 is the boss, 3 is the water injection port, 4 is the external thread, 5 is the nut, 6 is the internal thread, and 7 is the sealing gasket. Detailed implementation manners

[0021] The content of the present utility model can be more easily understood by referring to the following detailed description of the preferred implementation methods of the present utility model and the included embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. When there is a contradiction, the definition in this specification shall prevail.

[0022] Embodiment 1:

[0023] There is provided a spherical mold body as Figure 1-2 shown, including: a spherical mold main body 1, a boss 2 is provided on the spherical mold main body 1, a water injection port 3 is provided inside the boss 2, the water injection port 3 penetrates into the interior of the spherical mold main body 1, and an external thread 4 is provided on the outside of the boss 2. The boss 2 and the spherical mold main body 1 are integrally formed. The material of the spherical mold main body is LLDPE low-density linear polyethylene.

[0024] It further includes a nut 5, and the nut 5 is installed on the boss 2. An internal thread 6 is provided on the inner wall of the nut 5, and the internal thread 6 is connected in cooperation with the external thread 4. A sealing gasket 7 is provided inside the nut 5, and the sealing gasket 7 fits with the water injection port 3.

[0025] The outer diameter of the spherical mold body 1 is 150 mm. The wall thickness of the spherical mold body 1 is 6 mm. The diameter of the boss 2 is 18 mm. The diameter of the water injection port 3 is 8 mm.

[0026] The spherical mold body 1 and the boss 2 are integrally formed by injection molding, and then an external thread 4 is machined on the outer side of the boss 2. After injecting water through the water injection port 3, the internal thread 6 of the nut 5 is screwed tightly with the external thread 4 of the boss 2 for fixation, and the sealing gasket 7 seals the water injection port 3 to prevent liquid leakage.

Claims

1. A spherical mold body, characterized in that, Comprising: A spherical mold body, on which a boss is provided, a water injection port is arranged inside the boss, the water injection port penetrates to the inside of the spherical mold body, and an external thread is arranged on the outer side of the boss.

2. The spherical mold according to claim 1, characterized in that, It further includes a nut, and the nut is installed on the boss.

3. A spherical mold according to claim 2, characterized in that, An internal thread is arranged on the inner wall of the nut, and the internal thread is in mating connection with the external thread.

4. A spherical mold according to claim 3, characterized in that, A sealing gasket is arranged inside the nut, and the sealing gasket is in contact with the water injection port.

5. A spherical mold according to claim 1, characterized in that, The boss and the spherical mold body are integrally formed.

6. A spherical mold according to claim 1, characterized in that, The outer diameter range of the spherical mold body is 100 - 200 mm.

7. A spherical mold according to claim 1, characterized in that, The wall thickness range of the spherical mold body is 5 - 20 mm.

8. A spherical mold according to claim 1, wherein The diameter range of the boss is 10 - 25 mm.

9. A spherical mold according to claim 1, wherein, The diameter range of the water injection port is 5 - 15 mm.

10. A spherical mold according to claim 1, characterized in that, The material of the spherical mold body is LLDPE low density linear polyethylene.