Nuclear radiation detector front end convenient uncovering device

Abstract

The utility model relates to the technical field of uncovering devices, and discloses a convenient uncovering device at the front end of a nuclear radiation detector, which comprises a detection assembly. The detection assembly comprises a detector cylindrical tube, the inner side wall of which is provided with a scintillation crystal; a dismounting assembly is arranged on the inner side wall of the detector cylindrical tube, and the dismounting assembly comprises a groove body formed in the inner side wall of the detector cylindrical tube; the inner nut is fixed in the cylindrical tube of the detector through the two sunk screws, the front cover is in threaded connection with the inner side wall of the inner nut, during use, the front cover is directly rotated to slide out of the inner nut, the front cover is detached, the front end of the scintillation crystal is exposed at the moment, normal use of the nuclear radiation detector is not affected, and the service life of the nuclear radiation detector is prolonged. The front cover is convenient to disassemble, the scintillation crystal in the detector cylindrical tube is limited through the inner nut, normal use of the scintillation crystal is not affected, and the scintillation crystal is prevented from falling off from the detector cylindrical tube.

Description

Technical Field

[0001] The utility model relates to the technical field of cover opening devices, in particular to a convenient cover opening device at the front end of a nuclear radiation detector. Background Art

[0002] A component that detects nuclear radiation by utilizing the ionization effect, luminescence, physical or chemical changes caused by nuclear radiation in gases, liquids or solids is called a nuclear radiation detector. The front end of most nuclear radiation detectors is enclosed, such as a protective cover, which protects the nuclear radiation detector without affecting its normal use.

[0003] For example, Chinese patent publication number CN203786306U discloses a new type of protective cover for nuclear radiation detectors. Although the protective cover improves the sealing performance of the device by providing a tightening nut, a gasket and a sealing ring, the protective cover will block the radiation of the scintillation crystal, and the intensity of the radiation will be greatly reduced, thereby affecting the performance of the detector. A few detectors also use a front-opening cover, but because the front cover must be connected to the main pipe, there must be a step inside the cylindrical tube to prevent the scintillation crystal from falling out. The cylindrical tube wall is thickened and difficult to process, and it will block the radiation of the scintillation crystal, and the intensity of the radiation will be greatly reduced, thereby affecting the performance of the detector.

[0004] Existing nuclear radiation detectors do not have a good disassembly function, and it is inconvenient to disassemble the protective cover at the front end of the nuclear radiation detector, which brings inconvenience to use and reduces the performance of the nuclear radiation detector. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the shortcomings of the existing technology, the utility model provides a convenient front-end cover opening device for a nuclear radiation detector, which has the advantage of convenient disassembly and solves the problem that the existing nuclear radiation detectors do not have a good disassembly function.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a convenient front-end cover opening device for a nuclear radiation detector, comprising a detection assembly; the detection assembly comprises: a detector cylindrical tube, the inner wall of which is provided with a scintillation crystal; the inner wall of the detector cylindrical tube is provided with a disassembly assembly, the disassembly assembly comprises: a groove body, opened on the inner wall of the detector cylindrical tube; an inner nut, arranged in the groove body; a front cover, threadedly connected to the inner wall of the inner nut; threaded holes, symmetrically opened on the outer wall of the inner nut; a countersunk screw, threadedly connected to the two threaded holes, and the two countersunk screws both pass through the outer wall of the detector cylindrical tube.

[0009] Preferably, the disassembly assembly further comprises a knob fixedly connected to the outer side wall of the countersunk screw.

[0010] Preferably, the disassembly assembly further includes anti-slip grooves formed on the outer side wall of the front cover.

[0011] Preferably, the inner wall diameter of the inner nut is smaller than the inner wall diameter of the detector cylindrical tube.

[0012] Preferably: a limiting component is provided on the outer side wall of the inner nut; the limiting component comprises: a slide groove fixedly connected to the outer side wall of the inner nut; a slider opened on the inner side wall of the groove body, and the slider is embedded in the slide groove.

[0013] Preferably, two groups of the limiting components are symmetrically arranged on the outer side wall of the inner nut.

[0014] Preferably, the left ends of the two sliders are both arc-shaped.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention provides a convenient front-end cover opening device for a nuclear radiation detector, which has the following beneficial effects:

[0017] The utility model has the advantage of convenient disassembly. When in use, the inner nut is fixed to the inside of the cylindrical tube of the detector by two countersunk screws, and the front cover is threadedly connected to the inner wall of the inner nut. When in use, the front cover is directly rotated to make the front cover slide out from the inner nut to complete the disassembly of the front cover. At this time, the front end of the scintillation crystal leaks out, which does not affect the normal use of the nuclear radiation detector. While making it convenient to disassemble the front cover, the inner nut limits the scintillation crystal inside the cylindrical tube of the detector, which does not affect the normal use of the scintillation crystal and prevents the scintillation crystal from falling out of the cylindrical tube of the detector, thereby improving the practicality of the device and solving the problem that the existing nuclear radiation detector does not have a good disassembly function. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 Schematic diagram of the locally enlarged structure at point A in the middle.

[0020] In the picture:

[0021] 1. Detection assembly; 11. Detector cylindrical tube; 12. Scintillator crystal;

[0022] 2. Disassembly assembly; 21. Slot; 22. Internal nut; 23. Front cover; 24. Threaded hole; 25. Countersunk screw; 26. Knob; 27. Anti-slip groove;

[0023] 3. Limiting assembly; 31. Slide groove; 32. Slider. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] A convenient front-end cover-opening device for a nuclear radiation detector includes a detection component 1; the detection component 1 includes: a detector cylindrical tube 11, the inner wall of which is provided with a scintillation crystal 12; a disassembly component 2 is provided on the inner wall of the detector cylindrical tube 11, and the disassembly component 2 includes: a groove body 21, which is opened on the inner wall of the detector cylindrical tube 11; an inner nut 22, which is arranged in the groove body 21; a front cover 23, which is threadedly connected to the inner wall of the inner nut 22; threaded holes 24, which are symmetrically opened on the outer wall of the inner nut 22; a countersunk screw 25, which is threadedly connected to two of the threaded holes 24, and both of the countersunk screws 25 pass through the outer wall of the detector cylindrical tube 11; the disassembly component 2 also includes: a knob 26, which is fixedly connected to the outer wall of the countersunk screw 25; the disassembly component 2 also includes: an anti-slip groove 27, which is opened on the outer wall of the front cover 23; the inner wall diameter of the inner nut 22 is smaller than the inner wall diameter of the detector cylindrical tube 11.

[0027] See Figure 1-2When in use, after inserting the inner nut 22 into the groove 21 of the inner wall of the cylindrical tube 11 of the detector, insert the two countersunk screws 25 into the two threaded holes 24, and rotate the two countersunk screws 25 so that the two countersunk screws 25 are embedded in the outer wall of the inner nut 22 to fix the inner nut 22. At this time, directly insert the front cover 23 into the inner wall of the inner nut 22 through a threaded connection and rotate it to complete the installation of the front cover 23. When the nuclear radiation detector needs to be used, directly rotate the front cover 23 so that the front cover 23 is threadedly connected to the inner wall of the inner nut 22, so that the front cover 23 slides out from the inner wall of the inner nut 22 until the front cover 23 is separated from the inner nut 22, and the disassembly of the front cover 23 is completed. At this time, the flashing The leakage of the front end of the crystal 12 does not affect the normal use of the nuclear radiation detector. When installing the inner nut 22, the knob 26 can be directly turned or the countersunk screw 25 can be turned with a screwdriver to screw the countersunk screw 25 into the threaded hole 24, thereby fixing the inner nut 22 and improving the practicality of the device. When the front cover 23 is rotated for installation or removal, the anti-slip grooves on the outer wall of the front cover 23 have a good anti-slip effect, thereby improving the practicality of the device. When in use, the step formed by the inner side wall of the inner nut 22 and the inner side wall of the detector cylindrical tube 11 limits the scintillation crystal 12 and the photomultiplier tube, preventing the scintillation crystal 12 and the photomultiplier tube in the detector cylindrical tube 11 from falling, thereby improving the practicality of the device.

[0028] Example 2

[0029] The limiting function is added based on the first embodiment;

[0030] A limiting component 3 is provided on the outer side wall of the inner nut 22; the limiting component 3 includes: a slide groove 31, fixedly connected to the outer side wall of the inner nut 22; a slider 32, opened on the inner side wall of the groove body 21, and the slider 32 is embedded in the slide groove 31; two groups of the limiting components 3 are symmetrically provided on the outer side wall of the inner nut 22; the left ends of the two sliders 32 are both arc-shaped.

[0031] See Figure 1-2 When installing the inner nut 22, first embed the inner nut 22 into the inner wall of the groove body 21, rotate the inner nut 22, align the slider 32 with the slide groove 31, insert the inner nut 22 into the groove body 21, and slide the slide groove 31 in the slide groove 31 until the side surface of the inner nut 22 is tightly attached to the groove body 21, so that the threaded hole 24 is aligned with the countersunk screw 25, which is convenient for fixing the inner nut 22; when in use, the two sets of limit assemblies 3 simultaneously limit the inner nut 22; when in use, after the inner nut 22 is embedded in the groove body 21, the arc at the left end of the slider first contacts the slide groove 31, which facilitates the embedding of the slider 32 into the slide groove 31 and improves the installation efficiency.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A convenient front-end opening device for a nuclear radiation detector, comprising a detection assembly (1); the detection assembly (1) comprising: A detector cylindrical tube (11) having a scintillation crystal (12) disposed on its inner side wall; The invention is characterized in that a disassembly component (2) is provided on the inner side wall of the detector cylindrical tube (11), and the disassembly component (2) comprises: A groove body (21) is provided on the inner wall of the detector cylindrical tube (11); An inner nut (22) is disposed in the groove body (21); A front cover (23) is threadedly connected to the inner wall of the inner nut (22); A threaded hole (24) is symmetrically provided on the outer side wall of the inner nut (22); The countersunk screw (25) is threadedly connected in the two threaded holes (24), and the two countersunk screws (25) both penetrate the outer wall of the detector cylindrical tube (11).

2. The convenient front cover opening device for a nuclear radiation detector according to claim 1, characterized in that: The disassembly assembly (2) further comprises: The knob (26) is fixedly connected to the outer side wall of the countersunk screw (25).

3. The convenient front cover opening device for a nuclear radiation detector according to claim 1, characterized in that: The disassembly assembly (2) further comprises: Anti-slip lines (27) are provided on the outer side wall of the front cover (23).

4. The convenient front cover opening device for a nuclear radiation detector according to claim 1, characterized in that: The inner wall diameter of the inner nut (22) is smaller than the inner wall diameter of the detector cylindrical tube (11).

5. The convenient front cover opening device for a nuclear radiation detector according to claim 1, characterized in that: A limiting assembly (3) is provided on the outer side wall of the inner nut (22); the limiting assembly (3) comprises: A slide groove (31) fixedly connected to the outer side wall of the inner nut (22); A slider (32) is provided on the inner side wall of the groove body (21), and the slider (32) is embedded in the sliding groove (31).

6. The convenient front cover opening device for a nuclear radiation detector according to claim 5, characterized in that: Two groups of the limiting components (3) are symmetrically arranged on the outer side wall of the inner nut (22).

7. The convenient front cover opening device for a nuclear radiation detector according to claim 6, characterized in that: The left ends of the two sliding blocks (32) are both arc-shaped.

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