Flat-bottom seal head for nuclear magnetism

Abstract

The utility model discloses a flat-bottom end socket for nuclear magnetism, which comprises an end socket body and an installation adjusting ring, the end socket body is flat-bottom, the outer wall of the end socket body is provided with external threads, the inner wall of the installation adjusting ring is provided with internal threads, the end socket body is connected with the installation adjusting ring through the external threads and the internal threads, and the installation adjusting ring is connected with the end socket body through the external threads and the internal threads. And the deep stretching depth of the flat-bottom seal head is changed into threaded connection of the seal head body and the mounting adjusting ring, so that the stamping precision is higher, and the connection is convenient. The utility model relates to the technical field of flat-bottom end sockets, and particularly provides a flat-bottom end socket for nuclear magnetism.

Description

TECHNICAL FIELD

[0001] The utility model relates to flat bottom head technical field, concretely is a flat bottom head for nuclear magnetic. BACKGROUND

[0002] Nuclear magnetic resonance examination equipment is a medical image equipment based on magnetic resonance phenomenon, is widely used in medical clinical detection, and the flat bottom head plays the role of connection, sealing and positioning in the nuclear magnetic resonance equipment, ensures the sealing property in the experiment process, prevents the outside impurity from entering, is one of the key components of ensuring the normal operation and experiment precision of the equipment.

[0003] The flat bottom head of the nuclear magnetic resonance equipment is usually formed by cutting a steel plate into a disc and then spinning and forming a bowl shape on a spinning machine, but the efficiency of the produced flat bottom head is low and the size precision is general, especially the flatness and diameter have deviations, which seriously affects the manufacturing precision and production efficiency of the later container, and the flat bottom head formed by stamping has the problem of wrinkles at the chamfered arc, which is mainly caused by the excessive stretching depth of the flat bottom head, the large and uneven stretching resistance, and the deformation risk during the later welding with the equipment. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is that the spinning forming efficiency of the existing flat bottom head for nuclear magnetic resonance equipment is low and the size precision is general, the flat bottom head formed by stamping is prone to wrinkles, and the direct welding of the head with the equipment has a certain welding deformation risk, which is difficult to control.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: the utility model provides a flat bottom head for nuclear magnetic, which comprises a head body and an installation adjusting ring, the head body is designed as a flat bottom, an outer thread is arranged on the outer wall of the head body, an inner thread is arranged on the inner wall of the installation adjusting ring, the head body and the installation adjusting ring are connected through the outer thread and the inner thread, the deep stretching depth of the flat bottom head is changed to the threaded connection between the head body and the installation adjusting ring, the stamping precision is higher, and the connection is convenient.

[0006] In order to ensure the sealing property between the head body and the installation adjusting ring, annular welding is needed at the connection, in order to reduce the welding deformation, the utility model further comprises an auxiliary positioning assembly, an outer wall of the installation adjusting ring is provided with a support block, the auxiliary positioning assembly comprises a mounting bolt, a positioning frame, a support plate and a pressing plate, an inner thread hole is arranged on the support block, the bottom of the mounting bolt is threadedly connected with the inner thread hole, the positioning frame is penetratingly and rotatably arranged on the mounting bolt, the support plate is vertically arranged on the bottom wall of the positioning frame, the pressing plate is slidingly arranged on the bottom wall of the positioning frame, a pressing screw is penetratingly and threadedly connected with the pressing plate on the pressing plate, and one end of the pressing screw is rotatably arranged on the side wall of the pressing plate.

[0007] Preferably, a scale mark is arranged on the side wall of the positioning frame to visually observe the pressing amount.

[0008] Preferably, the support block and the auxiliary positioning assembly are arranged in multiple groups with the axis of the mounting adjusting ring as the center, the auxiliary positioning assembly is used to support and limit the bottom of the head body during use, and the auxiliary positioning assembly is removed after the weld is naturally cooled to reduce welding deformation.

[0009] Preferably, the two ends of the mounting adjusting ring are provided with variable cross sections, so that the head body with different diameters can be mounted and welded on the equipment, the installation diameter is not limited, and the use is more flexible.

[0010] The flat bottom head for nuclear magnetic resonance has the beneficial effects achieved by the above structure as follows.

[0011] (1) In order to increase the forming accuracy of the flat bottom head, avoid wrinkles at the chamfer of the flat bottom head, and ensure the sealing property and the accurate stability of the structure, the flat bottom head with large stretching depth is divided into a head body and a mounting adjusting ring connected through threads, and then is welded to be fixed through thread connection when being connected with the instrument, so that the deformation amount of the equipment after welding is reduced, the size accuracy of the flat bottom head is increased, and the deformation amount of the equipment after welding is reduced.

[0012] (2) The mounting bolt, the positioning frame, the support plate and the pressing plate are arranged to reduce the welding deformation between the head body and the mounting adjusting ring and improve the overall accuracy. DETAILED DESCRIPTION

[0013] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. In the drawings:

[0014] Figure 1 It is a whole structure schematic view of the flat bottom head for nuclear magnetic resonance.

[0015] Figure 2 It is an assembled state structure schematic view of the flat bottom head for nuclear magnetic resonance.

[0016] Figure 3 It is Figure 2 A partial enlarged schematic view of part A.

[0017] 1, head body, 2, mounting adjusting ring, 3, external thread, 4, internal thread, 5, auxiliary positioning assembly, 6, support block, 7, mounting bolt, 8, positioning frame, 9, support plate, 10, pressing plate, 11, internal thread hole, 12, pressing screw, 13, scale mark. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0020] Example 1

[0021] like Figures 1 to 3 As shown, the technical solution adopted by this utility model is as follows: A flat-bottomed end cap for nuclear magnetic resonance includes an end cap body 1 and an installation adjustment ring 2. The end cap body 1 has a flat-bottomed design, and the outer wall of the end cap body 1 is provided with an external thread 3. The inner wall of the installation adjustment ring 2 is provided with an internal thread 4. The end cap body 1 and the installation adjustment ring 2 are connected by the external thread 3 and the internal thread 4. The deep stretching depth of the flat-bottomed end cap is changed to a threaded connection between the end cap body 1 and the installation adjustment ring 2, resulting in higher stamping accuracy and easier connection. The side wall of the positioning frame 8 is provided with a scale mark 13 for intuitive observation of the pressing amount. The support block 6 and the auxiliary positioning component 5 are evenly distributed in multiple sets with the central axis of the installation adjustment ring 2 as the center. During use, the bottom of the end cap body 1 is supported and limited by multiple sets of auxiliary positioning components 5. The auxiliary positioning components 5 are removed after the weld has cooled down naturally, reducing welding deformation. The two ends of the installation adjustment ring 2 are set with variable cross sections, which makes it easy to install and weld end cap bodies 1 of different diameters onto the equipment, without being limited by the installation diameter, making it more flexible in use.

[0022] Example 2

[0023] Based on Example 1, such as Figure 2 and Figure 3 As shown, it also includes an auxiliary positioning component 5. A support block 6 is provided on the outer wall of the mounting adjustment ring 2. The auxiliary positioning component 5 includes a mounting bolt 7, a positioning frame 8, a support plate 9, and a pressure plate 10. The support block 6 is provided with an internal threaded hole 11. The bottom of the mounting bolt 7 is threadedly connected to the internal threaded hole 11. The positioning frame 8 is rotatably mounted on the mounting bolt 7. The support plate 9 is vertically mounted on the bottom wall of the positioning frame 8. The pressure plate 10 is slidably mounted on the bottom wall of the positioning frame 8. A clamping screw 12 is threadedly connected to the pressure plate 10. One end of the clamping screw 12 is rotatably mounted on the side wall of the pressure plate 10.

[0024] In specific use, the head body 1 is formed by stamping, the head body 1 and the installation adjusting ring 2 are connected through the outer thread 3 and the inner thread 4, then the lower end of the mounting bolt 7 is screwed with the supporting block 6, then the pressing plate 10 is located at the bottom side of the head body 1, the pressing screw 12 is rotated to push the pressing plate 10 and contact with the bottom of the head body 1, a plurality of the pressing plate 10 is adjusted to the same pressing size through the scale mark 13, then welding is carried out, the auxiliary positioning assembly 5 is disassembled after the welding trace is cooled, and the device is connected in the later period, and the same can be connected through the thread and then auxiliary welding.

[0025] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0026] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments change, modify, replace, and vary in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A flat bottom head for nuclear magnetic applications, comprising a head body (1) and a mounting adjustment ring (2), characterized in that: The head body (1) is flat bottom design, the outer wall of the head body (1) is provided with external thread (3), the inner wall of the installation adjusting ring (2) is provided with internal thread (4), the head body (1) and installation adjusting ring (2) are connected through external thread (3) and internal thread (4) between them; It also includes auxiliary positioning assembly (5), the outer wall of the installation adjusting ring (2) is provided with support block (6), the auxiliary positioning assembly (5) includes mounting bolt (7), positioning frame (8), support plate (9) and press plate (10), the support block (6) is provided with internal thread hole (11), the bottom of the mounting bolt (7) is threadedly connected with internal thread hole (11), the positioning frame (8) is through and rotationally arranged on the mounting bolt (7), the support plate (9) is vertically arranged on the bottom wall of the positioning frame (8), the press plate (10) is slidably arranged on the bottom wall of the positioning frame (8), the press plate (10) is through and threadedly connected with the pressing screw (12) on the side wall, one end of the pressing screw (12) is rotationally arranged on the side wall of the press plate (10); The side wall of the positioning frame (8) is provided with scale mark (13).

2. A flat bottom closure for nuclear magnetic resonance applications according to claim 1, characterized in that: The support block (6) and auxiliary positioning assembly (5) are uniformly distributed with multiple groups with the central axis of the installation adjusting ring (2) as the center.

3. A flat bottom closure for nuclear magnetic resonance applications according to claim 2, characterized in that: The two ends of the installation adjusting ring (2) are provided with variable cross section.

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