Activity meter mounting structure

Abstract

The utility model discloses an activity meter installation structure which comprises a rack upper platen, a rack lower platen and an installation flange connected with the rack upper platen, the upper end of an activity meter is in butt joint with the installation flange, and the periphery of the activity meter is provided with a flow guide cover used for guiding leaked gas to the position below the rack lower platen. The flow guide cover is arranged on the periphery of the activity meter, when the activity meter is not installed in place and an assembly gap exists between the activity meter and the installation flange, gas leaked in the activity meter is guided by the flow guide cover to flow to the position below the lower bedplate of the machine frame in the leakage test process, and therefore leakage detection operation can be conducted in the machine frame, operation difficulty is greatly reduced, and working efficiency is improved. And the device debugging efficiency is improved, and the structure is simple and effective.

Description

TECHNICAL FIELD

[0001] The utility model relates to radioactive medicine isolator equipment especially relates to a activity meter mounting structure. BACKGROUND

[0002] Activity meter is the common instrument used on radioactive medicine isolator equipment, is used in detecting the radioactivity dose in the medicine solution produced and configured in the isolator, and according to the radioactivity dose detected, the medicine solution is diluted and matched.

[0003] As Figure 1 As shown in the figure, the current activity meter 1 is generally installed on the upper rack plate 21 of the rack in the isolator through the sealing flange a, and the area between the upper rack plate 21 and the lower rack plate 22 of the rack is a shielding lead plate c, so that the contact position between the activity meter 1 and the sealing flange a is surrounded by the upper rack plate 21 and the lead plate, and once the activity meter 1 is not installed in place, there is a gap between the sealing flange a, which will cause the sealing to be not strict, and when the leakage test is carried out in the isolator later (the leakage test is an important test for detecting the sealing performance of the isolator, and when the test is carried out, the isolator is full of ammonia gas in the sealed state, and if there is gas leakage, the leakage position is detected by developing cloth, and the developing cloth reacts with ammonia gas to make the developing cloth present dark blue), the leakage gas diffusion area b is difficult to detect by artificial due to the small space, which greatly delays the equipment debugging. On the other hand, since it is directly installed on the upper rack plate 21 of the rack, a convex structure is formed on the upper rack plate 21 of the rack, which will affect the transfer and transportation of the materials on the plate (including trays, packaging materials and solution bottles, etc.), and it cannot meet the requirements of the users. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem of overcoming the prior art, and provides an activity meter mounting structure which is simple in structure and convenient for leakage detection operation.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] An activity meter mounting structure, comprising an upper rack plate, a lower rack plate and a mounting flange connected with the upper rack plate, the upper end of the activity meter is connected with the mounting flange, and a flow guide cover is arranged on the outer periphery of the activity meter for guiding the leaked gas to the lower side of the lower rack plate.

[0007] As a further improvement of the above technical scheme, the upper end of the flow guide cover is sealingly connected with the mounting flange.

[0008] As a further improvement of the above technical scheme, the upper end of the flow guide cover is weldingly connected with the mounting flange.

[0009] As a further improvement of the above technical solution: the lower end of the fairing is flush with the lower surface of the lower platform of the rack.

[0010] As a further improvement of the above technical solution: the upper end of the mounting flange is flush with the upper surface of the upper platform of the rack; or, the height of the upper end of the mounting flange is less than the height of the upper surface of the upper platform of the rack.

[0011] As a further improvement of the above technical solution: a flange part is arranged on the mounting flange, and a positioning hole is arranged on the upper platform of the rack, and the flange part is arranged in the positioning hole.

[0012] As a further improvement of the above technical solution: the flange part is welded with the upper platform of the rack, and the mounting flange is connected with the upper platform of the rack through fasteners.

[0013] As a further improvement of the above technical solution: a sealing element is arranged between the upper end of the activity meter and the mounting flange.

[0014] As a further improvement of the above technical solution: a supporting plate is arranged below the activity meter, a connecting element is arranged on the supporting plate, and the connecting element penetrates through the mounting flange and is connected with the upper platform of the rack.

[0015] As a further improvement of the above technical solution: a buffer pad is arranged between the lower end of the activity meter and the supporting plate.

[0016] Compared with the prior art, the activity meter mounting structure has the advantages that:

[0017] The activity meter mounting structure disclosed by the utility model has the advantages that: when the activity meter is not installed in place and there is an assembly gap between the activity meter and the mounting flange, the leaked gas in the activity meter flows to the lower platform of the rack under the guidance of the fairing during the leakage test, so that the leakage test can be conducted in the rack, the operation difficulty is greatly reduced, the efficiency of equipment debugging is improved, and the structure is simple and effective.

[0018] Other features and advantages of the utility model will be described in detail in the subsequent specific embodiment part. DRAWINGS

[0019] Figure 1 is a schematic view of the prior activity meter mounting structure.

[0020] Figure 2 is a schematic view of the activity meter mounting structure of the utility model.

[0021] Figure 3 is an enlarged schematic view of the connection between the mounting flange and the upper platform of the rack in the utility model.

[0022] Figure 4Is the installation flange and activity meter of the utility model in the enlarged view.

[0023] Figure 5 Is the installation flanne and activity meter of the utility model in the explosion view.

[0024] Figure 6 Is the installation flanne and fairing of the utility model in the explosion view.

[0025] In the drawing, various signs represent: a, sealing flange;B, leakage gas diffusion area;C, lead plate;

[0026] 1, activity meter;21, rack upper plate;211, positioning hole;22, rack lower plate;3, installation flange;31, flange part;4, fairing;5, sealing element;6, supporting plate;61, connecting element;62, buffer pad. DETAILED DESCRIPTION

[0027] In the description of the utility model, it is understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the utility model.

[0028] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0029] In the utility model, unless otherwise specifically defined and limited, the terms "assembly", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0030] The utility model will be further described in detail below in combination with the drawings and specific embodiments.

[0031] Figures 2 to 6An embodiment of the activity meter mounting structure of this utility model is shown. The activity meter mounting structure of this embodiment includes an upper frame plate 21, a lower frame plate 22, and a mounting flange 3 connected to the upper frame plate 21. The upper end of the activity meter 1 is connected to the mounting flange 3. A flow guide shroud 4 is provided on the outer periphery of the activity meter 1 to guide the leaked gas to the area below the lower frame plate 22.

[0032] In this embodiment, the activity meter mounting structure includes a flow guide shroud 4 around the activity meter 1. If the activity meter 1 is not properly installed, resulting in an assembly gap between it and the mounting flange 3, during a leak test, the leaking gas inside the activity meter 1 flows under the guidance of the flow guide shroud 4 to below the lower platform 22 of the frame. Specifically, as shown... Figure 2 As shown in region b, leak detection can be performed inside the frame, greatly reducing operational difficulty and improving equipment debugging efficiency. The structure is simple and effective. Preferably, the flow guide is a cylindrical structure and is coaxially arranged with the activity meter 1.

[0033] See details Figure 3 and Figure 4 In this embodiment, the upper end of the flow guide shroud 4 is sealed to the mounting flange 3, which helps to prevent the gas leaking from inside the activity meter 1 from leaking between the upper end of the flow guide shroud 4 and the mounting flange 3, thereby concentrating it in the area below the lower platform 22 of the frame, making the color change of the developing cloth more obvious.

[0034] Furthermore, in this embodiment, the upper end of the flow guide 4 is welded to the mounting flange 3. Welding provides good sealing at the connection point, which helps prevent leaked gas from the activity meter 1 from being discharged through the connection, and also provides high mechanical strength. Of course, in other embodiments, the upper end of the flow guide 4 and the mounting flange 3 can also be connected by bolts, clips, or other methods.

[0035] See details Figure 2 In a preferred embodiment, the lower end of the flow guide shroud 4 is flush with the lower surface of the rack lower platform 22. This allows leaked gas to be directed below the rack lower platform 22 for easier detection, while also minimizing the space occupied inside the rack.

[0036] See details Figure 3 In this embodiment, the upper end of the mounting flange 3 is flush with the upper surface of the upper platform 21 of the frame, and will not form a protruding structure on the upper platform 21 of the frame, thus avoiding affecting the transfer and transportation of materials on the upper platform 21 of the frame. The structure is simple and effective.

[0037] Of course, in other embodiments, the height of the upper end of the mounting flange 3 may also be less than the height of the upper surface of the upper platform 21 of the frame.

[0038] See details Figure 3 and Figure 6Furthermore, in this embodiment, the mounting flange 3 is provided with a flange portion 31, and the upper platform 21 of the frame is provided with a positioning hole 211. The flange portion 31 passes through the positioning hole 211, which not only facilitates the positioning of the mounting flange 3 on the upper platform 21 of the frame, but also helps to prevent the formation of a protruding structure on the upper platform 21 of the frame. The structure is simple and reasonable.

[0039] In a preferred embodiment, the flange 31 is welded to the upper plate 21 of the frame, which can achieve a sealed connection between the flange 31 and the upper plate 21 of the frame, avoid leakage, and the connection strength is high. The mounting flange 3 is connected to the upper plate 21 of the frame by fasteners (such as bolts, screws, etc.), which has high connection strength, which helps to reduce the amount of welding work and welding deformation, and the structure is reasonable.

[0040] See details Figure 4 and Figure 5 In this embodiment, a sealing element 5 is provided between the upper end of the activity meter 1 and the mounting flange 3. The sealing element 5 can be, for example, a sealing gasket, a sealing strip, and / or a sealing ring, which helps to improve the sealing performance between the upper end of the activity meter 1 and the mounting flange 3 and reduce the risk of leakage.

[0041] See details Figure 4 and Figure 5 In this embodiment, a support plate 6 is provided below the activity meter 1, and a connector 61 is provided on the support plate 6. The connector 61 passes through the mounting flange 3 (i.e., the mounting flange 3 has a hole for the connector 61 to pass through) and is connected to the upper platform 21 of the frame. Preferably, the connector 61 is a connecting rod with connecting threads at both ends. The connecting thread at the upper end connects to the threaded hole of the upper platform 21 of the frame, and the connecting thread at the lower end is locked by a nut. This can reliably fix the activity meter 1 to the upper platform 21 of the frame and press the sealing element 5, improving the sealing between the upper end of the activity meter 1 and the mounting flange 3. It also achieves the positioning between the activity meter 1 and the mounting flange 3, avoiding relative displacement, and is convenient for disassembly and assembly. Of course, in other embodiments, the connector 61 can also be a connecting plate, bracket, etc., which will not be described in detail.

[0042] Furthermore, in this embodiment, a buffer pad 62 is provided between the lower end of the activity meter 1 and the support plate 6. The buffer pad 62 can play a buffering role, preventing the activity meter 1 from being damaged or deformed due to excessive compression. Preferably, the buffer pad 62 is made of hard plastic, which has a good buffering effect, long service life and low cost.

[0043] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A vitality meter mounting structure, characterized in that: It includes an upper frame plate (21), a lower frame plate (22), and a mounting flange (3) connected to the upper frame plate (21). The upper end of the activity meter (1) is connected to the mounting flange (3). The outer periphery of the activity meter (1) is provided with a guide shroud (4) for guiding the leaked gas to the area below the lower frame plate (22).

2. The activity meter mounting structure according to claim 1, characterized in that: The upper end of the flow guide (4) is sealed to the mounting flange (3).

3. The activity meter mounting structure according to claim 2, characterized in that: The upper end of the flow guide (4) is welded to the mounting flange (3).

4. The activity meter mounting structure according to claim 1, characterized in that: The lower end of the flow guide (4) is flush with the lower surface of the frame lower platform (22).

5. The activity meter mounting structure according to any one of claims 1 to 4, characterized in that: The upper end of the mounting flange (3) is flush with the upper surface of the upper platform plate (21) of the frame; or, the height of the upper end of the mounting flange (3) is less than the height of the upper surface of the upper platform plate (21) of the frame.

6. The activity meter mounting structure according to claim 5, characterized in that: The mounting flange (3) is provided with a flange portion (31), and the upper platform (21) of the frame is provided with a positioning hole (211), and the flange portion (31) passes through the positioning hole (211).

7. The activity meter mounting structure according to claim 6, characterized in that: The flange (31) is welded to the upper platform (21) of the frame, and the mounting flange (3) is connected to the upper platform (21) of the frame by fasteners.

8. The activity meter mounting structure according to any one of claims 1 to 4, characterized in that: A sealing element (5) is provided between the upper end of the activity meter (1) and the mounting flange (3).

9. The activity meter mounting structure according to any one of claims 1 to 4, characterized in that: The activity meter (1) is provided with a support plate (6) below it. The support plate (6) is provided with a connector (61). The connector (61) passes through the mounting flange (3) and is connected to the upper platform (21) of the frame.

10. The activity meter mounting structure according to claim 9, characterized in that: A buffer pad (62) is provided between the lower end of the activity meter (1) and the tray (6).

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