CN216717245U

CN216717245U - Instrument for detecting installation verticality of sampling tube in thermal desorption instrument

Info

Publication number: CN216717245U
Application number: CN202220169266.9U
Authority: CN
Inventors: 朱旭丹; 雷锋; 章铁英
Original assignee: Hangzhou Construction Quality Testing Centre Co ltd
Current assignee: Hangzhou Construction Quality Testing Centre Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-06-10
Anticipated expiration: 2032-01-21

Abstract

The utility model discloses a determinator for detecting the mounting verticality of a sampling tube in a thermal desorption instrument, which comprises a first determination plate and a second determination plate, wherein the first determination plate is connected with the second determination plate, an angle measurement structure is arranged at the position where the first determination plate is connected with the second determination plate, the angle measurement structure comprises a fixed seat, an angle measurement plate and a pointer, the fixed seat is connected with the first determination plate, the angle measurement plate is mounted on the second determination plate, and the pointer is mounted on the first determination plate. The utility model relates to a measuring instrument for detecting the mounting verticality of a sampling tube in a thermal desorption instrument, which belongs to the field of verticality measurement.

Description

Instrument for detecting installation verticality of sampling tube in thermal desorption instrument

Technical Field

The utility model relates to the field of verticality measurement, in particular to a verticality measurement instrument for detecting the installation of a sampling tube in a thermal desorption instrument.

Background

With the development of urbanization, health problems and environmental problems caused by interior decoration are receiving more and more attention from society. In the decoration and renovation process, a large amount of volatile organic compounds are discharged from the coating and the plate, and if the volatile compounds are absorbed for a long time, the volatile compounds have great harm to the health of human bodies. Therefore, the detection of the indoor total volatile organic compound TVOC is more and more taken into social attention. Present TVOC detects and generally carries out thermal desorption through full-automatic thermal desorption appearance when detecting and goes out gas and advance the appearance and detect to the chromatogram again, because the straightness that hangs down between nut and the sampling tube is not enough when detection personnel installation sampling tube arrives on the thermal desorption appearance, can lead to advancing the appearance needle and prick askewly, leads to the sample to leak the problem that the spectrogram lost, consequently before carrying out the installation of sampling tube, need use the straightness survey work that hangs down of the straightness survey appearance of carrying out sampling tube and nut. Among the current straightness apparatus that hangs down, utilize the perpendicular right angle of I shape instrument to detect the straightness that hangs down of different length sampling pipe nut installations, but the square of apparatus can't stretch out and draw back, can't all satisfy the straightness requirement that hangs down to different length sampling pipes to hang down and rely on experience to judge, probably arouse great subjective error.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a determinator for detecting the installation verticality of a sampling pipe in a thermal desorption instrument, which can effectively solve the problems in the background technology.

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

detect sampling pipe installation straightness apparatus that hangs down among thermal desorption appearance, survey the board including first survey board and second, first survey board is connected with the second survey board, the position department that first survey board is connected with the second survey board is provided with the angle measurement structure, and the angle measurement structure includes fixing base, angle measurement board and pointer, the fixing base is connected on first survey board, the angle measurement board is installed on the second survey board, the pointer is installed on first survey board, the tip of second survey board is provided with the telescopic ruler, and the telescopic ruler includes fly leaf and connecting plate, the fly leaf is connected with the connecting plate, and the connecting plate is connected on the second survey board.

Preferably, a rotating groove is formed in the first measuring plate, the lower end of the second measuring plate is arranged in the rotating groove, the second measuring plate is rotatably connected with the first measuring plate, and a square groove is formed in the second measuring plate.

Preferably, the angle measuring structure further comprises a screwing block, the fixing base is fixedly installed on the first measuring plate, a rotating shaft is arranged on the second measuring plate and penetrates through the first measuring plate and the fixing base, and the screwing block is in threaded connection with the rotating shaft.

Preferably, the angle measuring plate is provided with a scale mark for measuring the offset angle, the angle measuring plate is fixedly connected with the second measuring plate, and the pointer is matched with the scale mark for use.

Preferably, the telescopic ruler further comprises a screwing bolt, the lower end of the connecting plate is connected to a square groove in the second measuring plate, the movable plate is connected with the second measuring plate in a sliding mode through the connecting plate, and the screwing bolt is connected to the second measuring plate in a threaded mode.

Compared with the prior art, the utility model has the following beneficial effects: this detect sampling pipe installation straightness apparatus that hangs down among thermal desorption appearance through the angle measurement structure that sets up for two survey boards can rotate, utilize pointer, angle measurement board isotructure, can the vertical deviation angle of spot test sampling pipe and nut, have improved and have measured the precision, adopt the telescopic ruler, make the second survey board can stretch out and draw back, satisfy in the straightness determination work that hangs down of different length sampling pipes.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the angle measuring structure of the present invention;

fig. 3 is a schematic structural view of the telescopic rule of the present invention.

In the figure: 1. a first assay plate; 2. a second assay plate; 3. an angle measuring structure; 301. a fixed seat; 302. screwing the block; 303. an angle measuring plate; 304. a pointer; 4. a telescopic ruler; 401. a movable plate; 402. a connecting plate; 403. screwing the bolt; 5. a rotating trough.

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, detect sampling tube installation straightness apparatus that hangs down in thermal desorption appearance, including first survey board 1 and second survey board 2, first survey board 1 is connected with second survey board 2, the position department that first survey board 1 is connected with second survey board 2 is provided with angle measurement structure 3, and angle measurement structure 3 includes fixing base 301, angle measurement board 303 and pointer 304, fixing base 301 is connected on first survey board 1, angle measurement board 303 is installed on second survey board 2, pointer 304 is installed on first survey board 1, the tip of second survey board 2 is provided with telescopic ruler 4, and telescopic ruler 4 includes fly leaf 401 and connecting plate 402, fly leaf 401 is connected with connecting plate 402, and connecting plate 402 is connected on second survey board 2.

Through above-mentioned embodiment, seted up swivelling chute 5 on the first survey board 1, the lower extreme of second survey board 2 sets up in swivelling chute 5, and rotates between second survey board 2 and the first survey board 1 to be connected, is equipped with square groove on the second survey board 2.

Through above-mentioned embodiment, angle measurement structure 3 is still including tightening piece 302 soon, fixing base 301 fixed mounting is on first survey board 1, be equipped with the rotation axis on the second survey board 2, and the rotation axis runs through in first survey board 1 and fixing base 301, tightening piece 302 threaded connection is on the rotation axis, be provided with the scale mark that is used for measuring the skew angle on the angle measurement board 303, and fixed connection between angle measurement board 303 and the second survey board 2, pointer 304 uses with the scale mark cooperation, angle measurement structure 3 through setting up, make two survey boards can rotate, utilize pointer 304, angle measurement board 303 isotructures, can the vertical deviation angle of spot test sampling tube and nut, the measurement precision has been improved.

Through above-mentioned embodiment, telescopic ruler 4 is still including the bolt 403 of screwing, and the lower extreme of connecting plate 402 is connected in the square groove on second survey board 2, and sliding connection between fly leaf 401 passes through connecting plate 402 and second survey board 2, and bolt 403 threaded connection of screwing adopts telescopic ruler 4 on second survey board 2 for second survey board 2 can stretch out and draw back, satisfies the straightness measurement work of hanging down in different length sampling pipes.

It should be noted that, in order to detect the installation verticality of the sampling tube in the thermal desorption apparatus, in the initial state, the first measuring plate 1 and the second measuring plate 2 are vertically arranged, at this time, the pointer 304 on the first measuring plate 1 is directly opposite to the middle position of the scale mark on the angle measuring plate 303, the screwing block 302 on the fixing seat 301 in the angle measuring structure 3 is unscrewed, so that the first measuring plate 1 and the second measuring plate 2 can rotate, then the verticality detection work of the sampling tube and the screw cap is started, in the detection process, the first measuring plate 1 and the second measuring plate 2 are attached to be close to the sampling tube and the screw cap, after the first measuring plate 1 and the second measuring plate 2 are respectively attached to the sampling tube and the screw cap, if the sampling tube and the screw cap are exactly vertical, then the two measuring plates are vertically arranged, the pointer 304 is opposite to the middle position of the scale mark on the angle measuring plate 303, if the sampling tube and the screw cap are not vertical, a certain rotation can occur between the first measuring plate 1 and the second measuring plate 2, at the moment, the two measuring plates are not vertically arranged any more, the second measuring plate 2 rotates relative to the first measuring plate 1 and then drives the angle measuring plate 303 in the angle measuring structure 3 to rotate, so that the position of the pointer 304 relative to the angle measuring plate 303 is changed, then the two measuring plates are ensured to be fixed, the screwing block 302 on the fixing seat 301 is screwed, the second measuring plate 2 is fixed, so that the second measuring plate 2 is fixedly connected relative to the first measuring plate 1, then the measuring instrument can be taken away, a worker can know the offset angle between the measuring plates at the moment according to the scale mark value corresponding to the pointer 304 at the moment and further know the verticality, when the verticality detection work of the next sampling tube and the screw cap needs to be carried out, the screwing block 302 is rotated to loosen the fixing effect on the second measuring plate 2, then survey according to above-mentioned in-process can, if sampling pipe length is longer, can utilize telescopic ruler 4 to carry out the extension work of second survey board 2, during the operation, the bolt 403 of screwing on second survey board 2 of unscrewing, remove movable plate 401, movable plate 401 passes through connecting plate 402 and moves on second survey board 2, thereby realize the purpose of extension, then reuse bolt 403 of screwing carry out the fixed of movable plate 401 isotructure can, moreover, the steam generator is simple in structure, excellent in use effect, through the angle measurement structure 3 that sets up, make two survey boards can rotate, utilize pointer 304, the isotructure of angle measurement board 303, can the vertical deviation angle of spot test sampling pipe and nut, the measurement accuracy has been improved, adopt telescopic ruler 4, make second survey board 2 can stretch out and draw back, satisfy the survey work in different length sampling pipes.

The foregoing has described the principles of use, features and advantages of the utility model. The above embodiments and the description of the utility model are provided to illustrate the basic principles and features of the utility model and, within the scope of the utility model concept, to be understood by those skilled in the art from the foregoing description, various modifications may be made to the utility model and these modifications are within the scope of the utility model as claimed.

Claims

1. Detect sampling pipe installation straightness apparatus that hangs down in thermal desorption appearance, including first survey board (1) and second survey board (2), first survey board (1) is connected its characterized in that with second survey board (2): the utility model discloses a measuring device, including first survey board (1) and second survey board (2) and be connected position department and be provided with angle measurement structure (3), and angle measurement structure (3) are including fixing base (301), angle measurement board (303) and pointer (304), fixing base (301) are connected on first survey board (1), angle measurement board (303) are installed on second survey board (2), pointer (304) are installed on first survey board (1), the tip of second survey board (2) is provided with telescopic ruler (4), and telescopic ruler (4) include fly leaf (401) and connecting plate (402), fly leaf (401) are connected with connecting plate (402), and connecting plate (402) are connected on second survey board (2).

2. The apparatus for detecting the installation verticality of the sampling tube in the thermal desorption instrument according to claim 1, wherein: the improved structure is characterized in that a rotary groove (5) is formed in the first measuring plate (1), the lower end of the second measuring plate (2) is arranged in the rotary groove (5), the second measuring plate (2) is rotatably connected with the first measuring plate (1), and a square groove is formed in the second measuring plate (2).

3. The apparatus for detecting the installation verticality of the sampling tube in the thermal desorption instrument according to claim 2, wherein: angle measurement structure (3) still include and tighten piece (302), fixing base (301) fixed mounting is on first survey board (1), be equipped with the rotation axis on second survey board (2), and the rotation axis runs through in first survey board (1) and fixing base (301), tighten piece (302) threaded connection is on the rotation axis.

4. The apparatus for detecting the installation verticality of the sampling tube in the thermal desorption instrument according to claim 3, wherein: the angle measurement plate (303) is provided with scale marks for measuring an offset angle, the angle measurement plate (303) is fixedly connected with the second measurement plate (2), and the pointer (304) is matched with the scale marks for use.

5. The apparatus for detecting the installation verticality of the sampling tube in the thermal desorption instrument according to claim 4, wherein: telescopic ruler (4) still including bolt (403) of screwing, the lower extreme of connecting plate (402) is connected in the square groove on second survey board (2), sliding connection between fly leaf (401) pass through connecting plate (402) and second survey board (2), bolt (403) threaded connection of screwing is on second survey board (2).