CN220289869U - Measuring instrument - Google Patents

Abstract

The application relates to a measuring instrument, belonging to the technical field of measuring equipment. The measuring instrument comprises a chassis, a push-pull device, a first detector and a second detector, wherein the push-pull device is arranged on the inner side of the chassis and divides the inner space of the chassis into a detection cavity and a mounting cavity, and the detection cavity and the mounting cavity are distributed on two opposite sides of the push-pull device along a first direction; the first detector and the second detector are arranged in the detection cavity and are arranged along the second direction; the push-pull device comprises a drawing piece, the drawing piece is provided with a plurality of sample trays, the drawing piece moves along a second direction to enter and exit the case, the number of the first detectors is a plurality of, the plurality of first detectors are arranged along a third direction, the number of the second detectors is a plurality of, and in the first direction, the plurality of second detectors are in one-to-one correspondence with the plurality of sample trays. The measuring instrument provided by the embodiment of the application can measure a plurality of samples at the same time, and is high in measuring efficiency.

Description

Measuring instrument

Technical Field

The application relates to the technical field of measuring equipment, in particular to a measuring instrument

Background

The low background alpha and beta measuring instrument is mainly applied to the fields of water quality monitoring, food sanitation, environmental radioactivity evaluation, radiation protection and the like. Low background alpha, beta meters are important instruments for weak radioactivity measurement. The low background alpha and beta measuring instrument selects the low background alpha and beta measuring instrument of the corresponding channel according to the different quantity of the measured samples; the existing low-background alpha and beta measuring instrument has fewer measuring channels, and is difficult to meet the measuring requirements of users.

Disclosure of Invention

The present application aims to solve the above problems, and to provide a measuring instrument capable of providing a plurality of different independent detection channels for detection, so as to improve the above problems.

The application provides a measuring instrument, which comprises a case, a push-pull device, a first detector and a second detector, wherein the push-pull device is arranged on the inner side of the case and divides the inner space of the case into a detection cavity and a mounting cavity, and the detection cavity and the mounting cavity are distributed on two opposite sides of the push-pull device along a first direction; the first detector and the second detector are arranged in the detection cavity, and the first detector and the second detector are arranged along a second direction; the push-pull device comprises a pulling piece, the pulling piece is provided with a plurality of sample trays, the pulling piece moves along a second direction to enter and exit the case, the number of the first detectors is a plurality of, the plurality of first detectors are arranged along a third direction, the number of the second detectors is a plurality of, the plurality of second detectors are in one-to-one correspondence with the plurality of sample trays in the first direction, and the first direction, the second direction and the third direction are perpendicular to each other.

In the technical scheme of this embodiment, the measuring apparatu that this application provided can be pulled out the box and be convenient for place the sample that waits to measure in the sample dish in the use, and a plurality of second detectors and a plurality of second sample dish one-to-one, every second detector's work is completely independent, and a plurality of second detectors can measure a plurality of samples simultaneously, promotes the efficiency of detection, satisfies user's user demand.

In some embodiments, the push-pull device comprises a support plate, the support plate is provided with a plurality of sliding grooves extending along a plurality of second directions, the plurality of sliding grooves are arranged along the third directions, and the drawing piece is in sliding fit with the sliding grooves.

In the technical scheme of this embodiment, the pull spare is placed in the backup pad, pull spare and spout sliding fit, and the pull spare removes and business turn over quick-witted case in the backup pad along the second direction under the guide of spout, and the direction of movement of backup pad and spout restriction pull spare makes the pull board business turn over the steady flow of the removal process of quick-witted case, reduces the sample removal of placing in the sample dish and leads to the risk of the relative position skew influence measuring result between self and the second detector.

In some embodiments, the drawing member includes a drawing plate and a handle, the handle is connected to one end of the drawing plate and is located at the outer side of the chassis, a convex portion is disposed on one side, close to the drawing plate, of the surface of the drawing plate, which faces the mounting cavity, and a clamping groove for matching the convex portion is disposed on one end, close to the handle, of the supporting plate.

In the technical scheme of the embodiment of the application, the handle is connected to one end of the drawing plate and is positioned at the outer side of the chassis, so that a user can conveniently apply force to the drawing plate to push in or pull out the drawing plate, and the use difficulty is reduced; the clamping groove is matched with the convex part of the drawing plate to limit the moving range of the drawing plate in the second direction.

In some embodiments, the chassis includes an upper case and a lower case, where the upper case includes a top wall, a side wall, and a bottom wall, where the top wall and the bottom wall are disposed opposite to each other along a first direction, the side wall is enclosed around the bottom wall, and two ends of the side wall are respectively connected to the top wall and the bottom wall; the detection cavity is the inner space of the upper box body, the installation cavity is the inner space of the lower box body, and the push-pull device is positioned at the inner side of the upper box body and is close to the bottom wall.

In some embodiments, the top wall includes a plurality of first screens stacked along the first direction.

In the technical scheme of this application embodiment, the quantity of first screen is a plurality of, makes the roof to external signal's isolated effect stronger, reduces the signal transmission of the quick-witted case outside natural environment and to detect the risk that the chamber influences the testing result.

In some embodiments, the sidewall includes a plurality of second screens stacked along the first direction.

In the technical scheme of this application embodiment, a plurality of second screen pile up the back fixed in order to constitute the lateral wall, compare in the processing degree of difficulty of current holistic lateral wall lower, reduce the manufacturing cost of lateral wall.

In some embodiments, the bottom wall includes a third screen and a fourth screen, the fourth screen is disposed on a side of the third screen facing away from the push-pull device along the first direction, and a crystal is embedded in the center of the third screen.

In the technical scheme of this application embodiment, the center on push-and-pull device's surface can be provided with the blind hole, and the crystal sets up in the blind hole.

The fourth screen correspondingly shields the position of the third screen, where the crystal is arranged, so that the risk that rays of the environment in the installation cavity enter the detection cavity through the crystal to influence the measurement result is reduced; the crystal can reflect background signals generated by cosmic rays to the detection positions of the first detector and the second detector, and the accuracy of detection results is improved.

In some embodiments, the first screen, the second screen, the third screen, and the fourth screen are all made of lead.

In the technical scheme of this application embodiment, the material of first screen, second screen, third screen and fourth screen is plumbous, and is better to the shielding effect of external radial, reduces and promotes the risk that the measuring result of first detector and second detector receives external environment influence.

In some embodiments, a source box and a measurement chassis are also included, the source box and the measurement chassis being disposed within the mounting cavity.

In the technical scheme of the embodiment of the application, the measuring machine case is used for acquiring the measuring results of the first detector and the second detector, and the source box can be used for placing radioactive objects such as samples to be measured and is convenient to take; the source box and the measuring machine box are arranged in the mounting cavity, so that the space utilization rate of the machine box is improved, the machine box is compact in structure, the size of the machine box is reduced, and the machine box is convenient to move and store.

In some embodiments, the device further comprises a base, and the chassis is disposed on the base.

In the technical scheme of this application embodiment, the base sets up in ground or work platform, and the quick-witted case sets up the base, and the high comfortable height when making the machine case can be in the user and use, facilitate the use.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the internal structure of a measuring instrument according to some embodiments of the present application;

FIG. 2 is a schematic view of the internal structure of the measuring instrument according to other embodiments of the present application;

fig. 3 is a schematic structural diagram of a push-pull device according to some embodiments of the present disclosure;

fig. 4 is a schematic structural diagram of a push-pull device according to other embodiments of the present application.

Icon: 1-a case; 10-a detection chamber; 11-a mounting cavity; 12-upper box body; 120-top wall; 1200-first screen; 121-sidewalls; 1210-a second screen; 122-a bottom wall; 1220-third screen; 1221-fourth screen; 1222-crystals; 13-lower box body; 2-push-pull device; 20-drawing piece; 200-sample tray; 201-a drawing plate; 2010-projecting portions; 202-handle; 21-a support plate; 210-a chute; 211-clamping grooves; 3-a first detector; 4-a second detector; 5-source box; 6-measuring a case; 7-a base; x-a first direction; y-a second direction; z-third direction.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "attached" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

The term "and/or" in this application is merely an association relation describing an associated object, and indicates that three relations may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In this application, the character "/" generally indicates that the associated object is an or relationship.

The term "plurality" as used herein refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural sheets" refers to two or more (including two).

According to some embodiments of the present application, as shown in fig. 1-2, the present application provides a measuring instrument, including a chassis 1, a push-pull device 2, a first detector 3 and a second detector 4, where the push-pull device 2 is disposed inside the chassis 1, and divides an internal space of the chassis 1 into a detection cavity 10 and an installation cavity 11, and the detection cavity 10 and the installation cavity 11 are distributed on two opposite sides of the push-pull device 2 along a first direction X; the first detector 3 and the second detector 4 are arranged in the detection cavity 10, and the first detector 3 and the second detector 4 are arranged along the second direction Y; the push-pull device 2 comprises a drawing piece 20, the drawing piece 20 is provided with a plurality of sample trays 200, the drawing piece 20 moves along a second direction Y to enter and exit the chassis 1, the number of the first detectors 3 is multiple, the plurality of the first detectors 3 are arranged along a third direction Z, the number of the second detectors 4 is multiple, the plurality of the second detectors 4 are in one-to-one correspondence with the plurality of sample trays 200 in a first direction X, and the first direction X, the second direction Y and the third direction Z are perpendicular to each other.

The sample is placed in a sample tray 200 for detection.

The first detector 3 is an anti-coincidence detector, the second detector 4 is a main detector, the anti-coincidence detector is used for detecting background signals generated by detecting cosmic rays, and the main detector is used for detecting the background signals generated by alpha, beta and cosmic rays. The alpha, beta ray signals emitted by the sample and the background signals generated by the cosmic rays are detected by the main detector, and the background signals generated by the cosmic rays are detected by the anti-coincidence detector. Each main detector circuit is divided into an alpha path and a beta path, and if the anti-coincidence detector does not detect a signal while the main detector detects the signal, the main detector detects an actual alpha or beta signal; in contrast, if the anti-coincidence detector detects a signal while the main detector detects a signal, the main detector detects an actual background signal.

The chassis 1 may be made of a material that suppresses electromagnetic radiation and conduction.

The number of the plurality of first detectors 3 may be two, three, four, five, six or more.

The number of the plurality of second detectors 4 may be two, three, four, five, six, seven, eight or more.

The X direction shown in the figure is the first direction X.

The Y direction shown in the figure is the second direction Y.

The Z direction shown in the figure is the third direction Z.

In the measuring apparatu that this application provided in the use, pull piece 20 can be pulled out quick-witted case 1 and be convenient for place the sample that waits to measure in sample dish 200, and a plurality of second detectors 4 and a plurality of second sample dish 200 one-to-one, the work of every second detector 4 is completely independent, and a plurality of second detectors 4 can measure a plurality of samples simultaneously, promotes the efficiency of detection, satisfies user's user demand.

Alternatively, as shown in fig. 4, the push-pull device 2 includes a support plate 21, where the support plate 21 is provided with a plurality of sliding grooves 210 extending along a plurality of second directions Y, the plurality of sliding grooves 210 are arranged along a third direction Z, and the pull member 20 is slidably engaged with the sliding grooves 210.

Rollers may be disposed in the chute 210 to promote smooth movement of the drawer 20 within the chute 210.

The drawer 20 is placed on the supporting plate 21, the drawer 20 is in sliding fit with the sliding groove 210, the drawer 20 moves on the supporting plate 21 along the second direction Y and enters and exits the chassis 1 under the guidance of the sliding groove 210, the moving direction of the drawer 20 is limited by the supporting plate 21 and the sliding groove 210, so that the moving process of the drawer 201 entering and exiting the chassis 1 is smooth, and the risk that the relative position offset between the drawer and the second detector 4 is influenced due to the movement of a sample placed in the sample tray 200 is reduced.

Alternatively, as shown in fig. 1 to 4, the drawer 20 includes a drawer plate 201 and a pull handle 202, the pull handle 202 is connected to one end of the drawer plate 201 and is located at the outer side of the chassis 1, a protrusion 2010 is disposed on a side, facing the mounting cavity 11, of the drawer plate 201, and a clamping groove 211 for the protrusion 2010 to be matched is disposed on one end, facing the pull handle 202, of the support plate 21.

When the drawing plate 201 completely enters the cabinet 1, the handle 202 contacts with the outer wall of the cabinet 1.

The handle 202 is connected to one end of the drawing plate 201 and is positioned at the outer side of the chassis 1, so that a user can conveniently apply force to the drawing plate 201 to push in or pull out the drawing plate 201, and the use difficulty is reduced; the engagement groove 211 cooperates with the protrusion 2010 of the drawer plate 201 to limit the movement range of the drawer plate 201 in the second direction Y.

Alternatively, as shown in fig. 1-2, the chassis 1 includes an upper case 12 and a lower case 13, where the upper case 12 includes a top wall 120, a side wall 121 and a bottom wall 122, the top wall 120 and the bottom wall 122 are oppositely disposed along a first direction X, the side wall 121 is enclosed around the bottom wall 122, and two ends of the side wall 121 are respectively connected with the top wall 120 and the bottom wall 122; the detection chamber 10 is the inner space of the upper box 12, the installation chamber 11 is the inner space of the lower box 13, and the push-pull device 2 is positioned inside the upper box 12 and near the bottom wall 122.

The upper housing 12 may be constructed of a material that inhibits electromagnetic radiation and conduction.

The installation position of the push-pull device 2 corresponds to the connection between the side wall 121 and the bottom wall 122.

The top wall 120, side walls 121 and bottom wall 122 enclose the detection chamber 10.

Alternatively, as shown in fig. 1-2, the top wall 120 includes a plurality of first panels 1200, the plurality of first panels 1200 being stacked along a first direction X.

The number of the plurality of first screens 1200 may be two, three, four, or more.

The number of the first screens 1200 is multiple, so that the top wall 120 has a strong isolation effect on external signals, and the risk that signals of the natural environment outside the chassis 1 are transmitted to the detection cavity 10 to influence the detection result is reduced.

Alternatively, as shown in fig. 1-2, the sidewall 121 includes a plurality of second screens 1210, the plurality of second screens 1210 being stacked along the first direction X.

The number of the plurality of first screens 1200 may be two, three, four, five, six or more.

The second screens 1210 are stacked and fixed to form the sidewall 121, so that the manufacturing cost of the sidewall 121 is reduced as compared with the conventional integral sidewall 121 with lower processing difficulty.

Optionally, as shown in fig. 1-2, the bottom wall 122 includes a third screen 1220 and a fourth screen 1221, the fourth screen 1221 is disposed on a side of the third screen 1220 facing away from the push-pull device 2 along the first direction X, and a crystal 1222 is embedded in the center of the third screen 1220.

A through hole may be provided at the center of the third screen 1220, and a crystal 1222 is provided in the through hole; alternatively, the third screen 1220 may be provided with a blind hole in the centre of the surface facing the push-pull device 2, in which the crystal 1222 is provided.

The fourth screen 1221 corresponds to a position where the third screen 1220 is provided with crystals 1222, reducing the risk that rays of the environment within the installation cavity 11 enter the detection cavity 10 via the crystals 1222 affecting the measurement result; the crystal 1222 can reflect background signals generated by cosmic rays to detection positions of the first detector 3 and the second detector 4, and accuracy of detection results is improved.

Optionally, the materials of the first screen 1200, the second screen 1210, the third screen 1220 and the fourth screen 1221 are all lead.

The metallic lead is a corrosion-resistant heavy nonferrous metal material, and has the advantages of low melting point, high corrosion resistance, difficult penetration of x-rays, gamma rays and the like, good plasticity and the like.

The materials of the first screen 1200, the second screen 1210, the third screen 1220 and the fourth screen 1221 are all lead, so that the shielding effect on external rays is good, and the risk that the measurement results of the first detector 3 and the second detector 4 are influenced by the external environment is reduced.

Optionally, as shown in fig. 1-2, the device further comprises a source box 5 and a measuring machine box 6, wherein the source box 5 and the measuring machine box 6 are arranged in the mounting cavity 11.

The first detector 3 and the second detector 4 are both connected to the measuring cabinet 6 via data lines.

The outside of the chassis 1 may be provided with a cabling box for placing data lines for connecting the first detector 3 and the second detector 4 with the measuring chassis 6.

The measuring box 6 is used for acquiring the measuring results of the first detector 3 and the second detector 4, and the source box 5 can be used for placing radioactive objects such as samples to be measured and is convenient to take; the source box 5 and the measuring case 6 are arranged in the mounting cavity 11, so that the space utilization rate of the case 1 is improved, the case 1 is compact in structure, the size of the case 1 is reduced, and the case is convenient to move and store.

Optionally, as shown in fig. 1-2, the device further comprises a base 7, and the chassis 1 is disposed on the base 7.

The base 7 can be provided with travelling wheels, so that the case 1 has certain mobility and is convenient to transport.

When the base 7 is provided with the walking wheel, the base 7 can also be provided with a positioning component, the base 7 can be fixed on the ground or a working platform, the risk that the measuring instrument automatically moves in the working process is reduced, and the use is convenient.

The base 7 is arranged on the ground or a working platform, the chassis 1 is provided with the base 7, so that the height of the chassis 1 can be at a comfortable height when a user uses the chassis, and the chassis is convenient to use.

While the present application has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the present application. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (10)

1. A meter, comprising:

a chassis;

the push-pull device is arranged on the inner side of the case and divides the inner space of the case into a detection cavity and a mounting cavity, and the detection cavity and the mounting cavity are distributed on two opposite sides of the push-pull device along the first direction;

the first detector and the second detector are arranged in the detection cavity and are arranged along a second direction;

the push-pull device comprises a pulling piece, the pulling piece is provided with a plurality of sample trays, the pulling piece moves along a second direction to enter and exit the case, the number of the first detectors is a plurality of, the plurality of first detectors are arranged along a third direction, the number of the second detectors is a plurality of, the plurality of second detectors are in one-to-one correspondence with the plurality of sample trays in the first direction, and the first direction, the second direction and the third direction are perpendicular to each other.

2. The gauge of claim 1, wherein the push-pull device comprises a support plate provided with a plurality of slide grooves extending in a plurality of second directions, the plurality of slide grooves being aligned in the third direction, the drawer being in sliding engagement with the slide grooves.

3. The measuring instrument of claim 2, wherein the drawing member comprises a drawing plate and a handle, the handle is connected to one end of the drawing plate and is located at the outer side of the case, a convex portion is arranged on one side, close to the drawing plate, of the surface of the drawing plate, which faces the mounting cavity, and a clamping groove for matching the convex portion is formed on one end, close to the handle, of the supporting plate.

4. The measuring instrument of claim 1, wherein the housing comprises an upper housing body and a lower housing body, the upper housing body comprises a top wall, a side wall and a bottom wall, the top wall and the bottom wall are oppositely arranged along a first direction, the side wall is arranged around the bottom wall in a surrounding manner, and two ends of the side wall are respectively connected with the top wall and the bottom wall;

the detection cavity is the inner space of the upper box body, the installation cavity is the inner space of the lower box body, and the push-pull device is positioned at the inner side of the upper box body and is close to the bottom wall.

5. The gauge of claim 4, wherein the top wall includes a plurality of first screens stacked along the first direction.

6. The gauge of claim 5, wherein the sidewall includes a plurality of second screens stacked along the first direction.

7. The gauge of claim 6, wherein the bottom wall includes a third screen and a fourth screen, the fourth screen being disposed on a side of the third screen facing away from the push-pull device in the first direction, the third screen having a crystal embedded in a center thereof.

8. The gauge of claim 7, wherein the first, second, third, and fourth screens are all lead.

9. The meter of claim 1, further comprising a source box and a meter box, the source box and the meter box being disposed within the mounting cavity.

10. The gauge of claim 1, further comprising a base, the chassis being disposed on the base.