A portable surface contamination measuring instrument standard measuring device

Abstract

A standard measuring device of a portable sampling surface contamination measuring instrument includes an instrument probe shielding part and a sample holding part; the instrument probe shielding part includes: a portable surface contamination measuring instrument probe; an anti-interference shielding body; an instrument probe stopper; a through hole is provided in the center of the anti-interference shielding body, and an instrument probe stopper is provided at the bottom end of the through hole, and the portable surface contamination measuring instrument probe is inserted into the anti-interference shielding body; the sample holding part includes: a sample holding tray to be tested, a sample holding tray handle at both ends of the sample holding tray to be tested, a fork-shaped bracket telescopic handle guide groove is provided in the handle of the sample holding tray to be tested, so that the fork-shaped bracket telescopic handle moves in a direction along the fork-shaped bracket telescopic handle guide groove, a compression spring is provided on the inner side of the sample holding tray handle, one end of the compression spring is connected to the fork-shaped bracket telescopic handle, and the fork-shaped bracket telescopic handle is connected to the fork-shaped bracket through an embedded fork-shaped bracket driving connecting rod.

Description

Technical Field

[0001] The invention relates to the field of measuring devices, in particular to a standard measuring device of a portable sampling type surface contamination measuring instrument. Background Art

[0002] When conducting surface contamination measurements, nuclear power plants or nuclear technology utilization units often use a portable sampling method, which involves wiping samples and analyzing them using portable instruments. However, each time the wipe sample measurement and analysis work is performed, the distance and angle between the traditional handheld wipe sample and the instrument probe vary, and each measurement data is affected by the environmental background radiation level, resulting in deviations in the measurement results. This is especially true for related statistical and analytical work such as data collection and comparison, as it does not conform to the single variable principle, resulting in the cumulative data being neither referenceable nor comparable, which directly affects the analysis results. Summary of the Invention

[0003] The purpose of the present invention is to compensate for the limitations of traditional measurement through this device, shield the measuring instrument probe, greatly reduce the impact of the environmental background radiation level, fix the angle and distance between the wipe sample and the measuring instrument probe, unify the variables in the surface contamination measurement process, reduce measurement errors, and can be widely used in nuclear power plants or nuclear technology utilization units.

[0004] The technical solution of the present invention is as follows: a portable sampling type surface contamination measuring instrument standard measuring device, comprising an instrument probe shielding part and a sample holding part;

[0005] The instrument probe shielding part includes: a portable surface contamination measuring instrument probe; an anti-interference shielding body; and an instrument probe stopper. A through hole is provided in the center of the anti-interference shielding body, and an instrument probe stopper is provided at the bottom of the through hole. The portable surface contamination measuring instrument probe is inserted into the anti-interference shielding body.

[0006] The sample holding part includes: a wipe sampling sample; a fork-shaped bracket; a sample holding tray to be tested; a fork-shaped bracket telescopic handle; a compression spring; a handle of the sample holding tray to be tested; a guide groove of the fork-shaped bracket telescopic handle; a fork-shaped bracket driving connecting rod; a handle of a waste sample collection box; a waste sample collection box; the sample holding tray to be tested is inserted under the anti-interference shielding body, and there are sample holding tray handles at both ends of the sample holding tray to be tested, and a fork-shaped bracket telescopic handle guide groove is provided in the handle of the sample holding tray to be tested, so that the fork-shaped bracket telescopic handle moves in a direction along the fork-shaped bracket telescopic handle guide groove, and a compression spring is provided on the inner side of the handle of the sample holding tray to be tested, one end of the compression spring is connected to the telescopic handle of the fork-shaped bracket, and the telescopic handle of the fork-shaped bracket is connected to the fork-shaped bracket through an embedded fork-shaped bracket driving connecting rod, and a through hole is provided in the cross center of the sample holding tray to be tested, so that the wipe sampling sample is placed in the through hole.

[0007] The sample tray handles at both ends of the sample tray can be used to achieve bidirectional pulling.

[0008] The compression spring is in a compressed state, providing a closing force for the telescopic handle of the fork-type bracket.

[0009] Due to the elastic force of the compression spring, the fork-shaped brackets on both sides are in a normally closed state.

[0010] The measurement is performed while being supported by a fork-type bracket.

[0011] After the measurement is completed, the telescopic handles of the fork-shaped bracket in the handles of the sample holding tray at both ends are pulled radially outward, and the fork-shaped bracket drives the connecting rod to move to both sides together with the fork-shaped bracket, and the wiped sample falls along the through hole into the waste sample collection box below the sample holding tray.

[0012] Bidirectional pulling is achieved through the waste sample collection box handles at both ends of the waste sample collection box.

[0013] The significant benefits of this invention lie in its ability to shield the measuring instrument probe, significantly reducing the impact of ambient background radiation levels. It also maintains a fixed angle and distance between the wiped sample and the measuring instrument probe, standardizing variables in the surface contamination measurement process and reducing measurement errors. Its simple structure, mature production technology, and high cost-effectiveness make it suitable for widespread application in nuclear power plants and other nuclear technology utilization institutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the standard measuring device of a portable surface contamination measuring instrument;

[0015] Figure 2 yes Figure 1 AA view

[0016] Figure: 1. Portable surface contamination measuring instrument probe; 2. Anti-interference shield; 3. Instrument probe stopper; 4. Wipe sample; 5. Fork bracket; 6. Sample tray; 7. Fork bracket telescopic handle; 8. Compression spring; 9. Sample tray handle; 10. Fork bracket telescopic handle guide slot; 11. Fork bracket drive link; 12. Waste sample collection box handle; 13. Waste sample collection box DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0018] The invention discloses a standard measuring device of a portable sampling type surface contamination measuring instrument, which is mainly divided into an instrument probe shielding part and a sample holding part.

[0019] The instrument probe shielding system includes a portable surface contamination measurement instrument probe 1, an anti-interference shield 2, and an instrument probe stop 3. The anti-interference shield 2 has a central through-hole, and the instrument probe stop 3 is located at the bottom of the through-hole. The instrument probe stop 3 is used to position the portable surface contamination measurement instrument probe 1 within the anti-interference shield 2.

[0020] The sample holding part includes: a wiped sample 4; a fork-shaped bracket 5; a sample holding tray 6; a fork-shaped bracket telescopic handle 7; a compression spring 8; a sample holding tray handle 9; a fork-shaped bracket telescopic handle guide groove 10; a fork-shaped bracket drive connecting rod 11; a waste sample collection box handle 12; and a waste sample collection box 13. The sample tray 6 to be tested is inserted under the anti-interference shielding body 2, and the sample tray handles 9 at both ends of the sample tray 6 can be pulled in both directions. The sample tray handles 9 at both ends are provided with fork-shaped bracket telescopic handle guide grooves 10, so that the fork-shaped bracket telescopic handle 7 moves in a direction along the fork-shaped bracket telescopic handle guide grooves 10. A compression spring 8 is provided on the inside of the sample tray handle 9, and the other end of the compression spring 8 is connected to the fork-shaped bracket telescopic handle 7, and the compression spring 8 is in a compressed state, providing a closing force for the fork-shaped bracket telescopic handle 7. The fork-shaped bracket telescopic handle 7 is connected to the fork-shaped bracket 5 through the embedded fork-shaped bracket driving connecting rod 11. Due to the compression spring Due to the elastic force of the spring 8, the fork-shaped brackets 5 on both sides are normally closed. A through hole is provided in the cross center of the sample holding tray 6 to be tested, so that the wiped sample 4 can be placed in the through hole, supported and measured by the fork-shaped bracket 5. After the measurement is completed, the fork-shaped bracket telescopic handle 7 in the handle 9 of the sample holding tray to be tested at both ends is pulled radially outward, and the fork-shaped bracket driving connecting rod 11 moves together with the fork-shaped bracket 5 to both sides, and the wiped sample 4 falls along the through hole into the waste sample collection box 13 under the sample holding tray to be tested 6. The waste sample collection box handles 12 at both ends of the waste sample collection box 13 can achieve two-way pulling and can be discarded when too many waste samples are stored.

[0021] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A portable surface contamination measuring instrument standard measuring device, characterized by: It includes the instrument probe shielding part and the sample holding part; The instrument probe shielding part comprises: a portable surface contamination measuring instrument probe (1); an anti-interference shielding body (2); and an instrument probe stopper (3); a through hole is provided at the center of the anti-interference shielding body (2), and the instrument probe stopper (3) is provided at the bottom end of the through hole; the portable surface contamination measuring instrument probe (1) is inserted into the anti-interference shielding body (2); The sample holding part includes: a wiping sample (4); a fork-shaped bracket (5); a sample holding tray (6); a fork-shaped bracket telescopic handle (7); a compression spring (8); a sample holding tray handle (9); a fork-shaped bracket telescopic handle guide groove (10); a fork-shaped bracket driving connecting rod (11); a waste sample collection box handle (12); a waste sample collection box (13); the sample holding tray (6) is inserted under the anti-interference shielding body (2), and the sample holding tray (6) has sample holding tray handles (9) at both ends. A fork-shaped bracket telescopic handle guide groove (10) is provided in the tray handle (9), so that the fork-shaped bracket telescopic handle (7) can be directed along the fork-shaped bracket telescopic handle guide groove (10). A compression spring (8) is provided on the inner side of the sample tray handle (9), one end of the compression spring (8) is connected to the fork-shaped bracket telescopic handle (7), and the fork-shaped bracket telescopic handle (7) is connected to the fork-shaped bracket (5) through an embedded fork-shaped bracket driving connecting rod (11). A through hole is provided at the cross center of the sample tray (6), so that the wiped sample (4) can be placed in the through hole.

2. The portable surface contamination measuring instrument standard measuring device according to claim 1 is characterized in that: Bidirectional pulling and drawing are achieved through the sample holding tray handles (9) at both ends of the sample holding tray (6).

3. The portable surface contamination measuring instrument standard measuring device according to claim 1 is characterized in that: The compression spring (8) is in a compressed state, providing a closing force for the telescopic handle (7) of the fork-shaped bracket.

4. The portable surface contamination measuring instrument standard measuring device according to claim 1 is characterized by: Due to the elastic force of the compression spring (8), the fork-shaped brackets (5) on both sides are in a normally closed state.

5. The portable surface contamination measuring instrument standard measuring device according to claim 1 is characterized in that: The measurement is performed by supporting it with a fork-shaped bracket (5).

6. The portable surface contamination measuring instrument standard measuring device according to claim 1, characterized in that: After the measurement is completed, the telescopic handles (7) of the fork-shaped bracket in the handles (9) of the sample holding tray to be tested at both ends are pulled radially outward, and the fork-shaped bracket driving connecting rod (11) moves the fork-shaped bracket (5) to both sides, and the wiped sample (4) falls into the waste sample collection box (13) below the sample holding tray to be tested (6) along the through hole.

7. The portable surface contamination measuring instrument standard measuring device according to claim 1, characterized in that: Bidirectional pulling is achieved through the waste sample collection box handles (12) at both ends of the waste sample collection box (13).

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