CN215415912U

CN215415912U - Low-background alpha beta measuring instrument distribution sample introduction device

Info

Publication number: CN215415912U
Application number: CN202121606597.6U
Authority: CN
Inventors: 张士梅; 尹双全
Original assignee: Tianjin Aoxi Environmental Protection Technology Co ltd
Current assignee: Tianjin Aoxi Environmental Protection Technology Co ltd
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2022-01-04
Anticipated expiration: 2031-07-15

Abstract

The utility model discloses a low-background alpha beta measuring instrument distribution sample introduction device, which comprises a measuring instrument body and a sample introduction plate, wherein a feeding channel is arranged on one side of the measuring instrument body, a mounting plate is arranged in the feeding channel and fixedly connected with the sample introduction plate through a self-tapping screw, a connecting plate is fixedly mounted at one end of the sample introduction plate, which is far away from the mounting plate, an adapter plate is fixedly connected to one side of the connecting plate, which is far away from the sample introduction plate, and a limiting plate is fixedly connected to one side of the adapter plate, which is far away from the connecting plate; the measuring instrument comprises a measuring instrument body, a feeding channel, a limiting plate, a sealing groove, a sealing piece and a sealing plate, wherein the measuring instrument body is fixedly connected with the sealing plate on one side close to the feeding channel, the sealing plate is arranged on one side, away from the measuring instrument body, of the sealing plate, the limiting plate is fixedly connected with the sealing piece matched with the sealing groove on one side close to the sample feeding plate, the sealing plate is of a rectangular frame structure, and the sealing plate is sleeved on the sample feeding plate. The tightness of the measuring instrument body can be increased, and meanwhile, the sample plate is convenient to replace.

Description

Low-background alpha beta measuring instrument distribution sample introduction device

Technical Field

The utility model relates to the technical field of low-background alpha beta measuring instruments, in particular to a distribution sample introduction device of a low-background alpha beta measuring instrument.

Background

The low-background alpha beta measuring instrument is used for measuring the total alpha and total beta activity concentration in a sample in the fields of radioactive detection of domestic drinking water, radiation environment monitoring, nuclear power stations, geological exploration, universities and colleges, entry and exit inspection and quarantine, third-party detection, scientific research institutions and the like. The low background alpha beta measuring instrument consists of a main machine of the detector and a special computer. The detector host is the core part of the instrument. The device comprises five parts, namely a double-guide-rail drawer type sample bracket, a measuring and counting tube, a shielding and counting tube, a lead shielding chamber, a nuclear electronics unit and the like. The sample introduction plate of the existing low-background alpha beta measuring instrument is inconvenient to replace after being damaged, the existing low-background alpha beta measuring instrument has poor sealing property after sample introduction, and dust or impurities easily enter the low-background alpha beta measuring instrument.

Therefore, a distribution sample introduction device of the low-background alpha beta measuring instrument is provided.

Disclosure of Invention

The utility model mainly aims to provide a low-background alpha beta measuring instrument distribution sample introduction device which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a low background alpha beta measuring instrument distribution sampling device comprises a measuring instrument body and a sampling plate, wherein a feeding channel is arranged on one side of the measuring instrument body, a mounting plate is arranged in the feeding channel and fixedly connected with the sampling plate through a self-tapping screw, a connecting plate is fixedly mounted at one end, away from the mounting plate, of the sampling plate, a switching plate is fixedly connected to one side, away from the sampling plate, of the connecting plate, and a limiting plate is fixedly connected to one side, away from the connecting plate, of the switching plate;

the measuring instrument comprises a measuring instrument body, a feeding channel is arranged on the measuring instrument body, a sealing plate is fixedly connected to one side, close to the feeding channel, of the measuring instrument body, a sealing groove is formed in one side, away from the measuring instrument body, of the sealing plate, a sealing element matched with the sealing groove is fixedly connected to one side, close to the sample feeding plate, of the limiting plate, and the sealing element is located in the sealing groove, so that the limiting plate is connected with the measuring instrument body more tightly.

Further, the sealing plate is of a rectangular frame structure and is sleeved on the sample feeding plate.

Further, advance the model and the mounting panel joint, advance to offer the recess that a plurality of equidistance set up on the model.

Further, it arranges to advance to be the right angle structure between model and the limiting plate, limiting plate and closing plate parallel arrangement relatively, limiting plate one side and closing plate contact.

Further, the sealing element and the sealing groove are both of rectangular frame structures.

Furthermore, a sealing gasket is fixedly glued on one side, away from the limiting plate, of the sealing element, and the sealing gasket is a rubber gasket, so that the sealing performance between the limiting plate and the sealing plate can be improved.

Compared with the prior art, the utility model has the following beneficial effects: the mounting panel passes through self tapping screw and advances kind of board to be connected, and then be convenient for advance the installation and the dismantlement of model, the problem of the present low background alpha beta measuring apparatu advance kind of board damage not convenient for change after, through the closing plate, the design of limiting plate and sealing member, can increase the leakproofness of measuring apparatu body, the sealing member is located the seal groove, it is inseparabler to make limiting plate and this body coupling of measuring apparatu, sealed pad is the rubber pad, can further increase the leakproofness between limiting plate and the closing plate, it is internal to avoid debris dust to enter into the measuring apparatu.

Drawings

Fig. 1 is a schematic structural diagram of a distribution sample introduction device of a low background alpha beta measuring instrument.

Fig. 2 is an enlarged view of a portion a in fig. 1 of a low background α β measurement instrument distribution sample injection device of the present invention.

Fig. 3 is a perspective view of a limiting plate of the distribution sample introduction device of the low background alpha beta measuring instrument.

In the figure: 1. a gauge body; 2. feeding a sample plate; 3. a groove; 4. a limiting plate; 5. a feed channel; 6. a sealing plate; 7. a sealing groove; 8. mounting a plate; 9. self-tapping screws; 10. a seal member; 11. a gasket; 12. an adapter plate; 13. a connecting plate.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1-3, a low background α β measurement instrument distribution sample introduction device comprises a measurement instrument body 1 and a sample introduction plate 2, wherein a feed channel 5 is arranged on one side of the measurement instrument body 1, a mounting plate 8 is arranged in the feed channel 5, the mounting plate 8 is fixedly connected with the sample introduction plate 2 through a self-tapping screw 9, a connecting plate 13 is fixedly mounted on one end of the sample introduction plate 2 away from the mounting plate 8, an adapter plate 12 is fixedly connected to one side of the connecting plate 13 away from the sample introduction plate 2, and a limit plate 4 is fixedly connected to one side of the adapter plate 12 away from the connecting plate 13;

one side fixedly connected with closing plate 6 that measuring apparatu body 1 is close to feedstock channel 5, one side that measuring apparatu body 1 was kept away from to closing plate 6 has seted up seal groove 7, limiting plate 4 is close to one side fixedly connected with and the sealing member 10 of 7 looks adaptations of seal groove of model 2, and sealing member 10 is located seal groove 7, makes limiting plate 4 be connected inseparabler with measuring apparatu body 1.

The sealing plate 6 is of a rectangular frame structure, and the sealing plate 6 is sleeved on the sample feeding plate 2.

Wherein,

advance model

2 and 8 joint of mounting panel, advance the recess 3 that the model 2 was seted up a plurality of equidistance and set up.

The sample feeding plate 2 and the limiting plate 4 are arranged in a right-angle structure, the limiting plate 4 and the sealing plate 6 are arranged in parallel, and one side of the limiting plate 4 is in contact with the sealing plate 6.

The sealing element 10 and the sealing groove 7 are both in a rectangular frame structure.

And a sealing gasket 11 is fixedly glued on one side of the sealing element 10, which is far away from the limiting plate 4, and the sealing gasket 11 is a rubber gasket, so that the sealing performance between the limiting plate 4 and the sealing plate 6 can be improved.

It should be noted that, the present invention is a distributed sample introduction device for a low-background α β measurement instrument, when a sample introduction plate 2 needs to be replaced, only a tapping screw 9 located on the sample introduction plate 2 needs to be unscrewed, the sample introduction plate 2 is taken off from an installation plate 8, and then a new sample introduction plate 2 is replaced, when the sample introduction plate 2 enters a feed channel 5 on a measurement instrument body 1, a sealing member 10 on a position close to one side of the sample introduction plate 2 on a position limiting plate 4 is embedded in a sealing groove 7 located on a sealing plate 6.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The distributed sample introduction device for the low background alpha beta measuring instrument comprises a measuring instrument body (1) and is characterized by further comprising a sample introduction plate (2), wherein a feeding channel (5) is arranged on one side of the measuring instrument body (1), a mounting plate (8) is arranged in the feeding channel (5), the mounting plate (8) is fixedly connected with the sample introduction plate (2) through a self-tapping screw (9), a connecting plate (13) is fixedly mounted at one end, away from the mounting plate (8), of the sample introduction plate (2), a transition plate (12) is fixedly connected to one side, away from the sample introduction plate (2), of the connecting plate (13), and a limiting plate (4) is fixedly connected to one side, away from the connecting plate (13), of the transition plate (12);

one side fixedly connected with closing plate (6) that measuring apparatu body (1) is close to feedstock channel (5), sealing groove (7) have been seted up to one side that measuring apparatu body (1) was kept away from in closing plate (6), limiting plate (4) are close to one side fixedly connected with and sealing member (10) of sealing groove (7) looks adaptation of advancing model (2).

2. The low background alpha beta measuring instrument distribution sample introduction device according to claim 1, characterized in that: the sealing plate (6) is of a rectangular frame structure, and the sealing plate (6) is sleeved on the sample feeding plate (2).

3. The low background alpha beta measuring instrument distribution sample introduction device according to claim 1, characterized in that: advance model (2) and mounting panel (8) joint, advance and offer recess (3) that a plurality of equidistance set up on model (2).

4. The low background alpha beta measuring instrument distribution sample introduction device according to claim 1, characterized in that: the sample feeding plate (2) and the limiting plate (4) are arranged in a right-angle structure, and the limiting plate (4) and the sealing plate (6) are arranged in parallel relatively.

5. The low background alpha beta measuring instrument distribution sample introduction device according to claim 1, characterized in that: the sealing element (10) and the sealing groove (7) are both of rectangular frame structures.

6. The low background alpha beta measuring instrument distribution sample introduction device according to claim 1, characterized in that: and a sealing gasket (11) is fixedly glued on one side of the sealing element (10) far away from the limiting plate (4).