CN209821399U

CN209821399U - Radon exhalation rate detection device

Info

Publication number: CN209821399U
Application number: CN201920678698.0U
Authority: CN
Inventors: 宋学进; 管莉芳; 柴建霞; 李京美; 巩晓娟; 朱彦启; 胡阿飞; 刘丽华; 宗金秀; 刘闯
Original assignee: Us Construction Project In Henan Henan Detects Co Ltd
Current assignee: Us Construction Project In Henan Henan Detects Co Ltd
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2019-12-20
Anticipated expiration: 2029-05-13

Abstract

The utility model relates to the technical field of detection devices, and discloses a radon exhalation rate detection device, which comprises a detection box with an opening at the upper end and a radon detector, wherein an air inlet pipe and an air outlet pipe are symmetrically communicated between the detection box and the radon detector, a box cover is arranged at the box opening of the detection box, a support plate is fixedly connected at the lower end of the box cover, and a suspended clamping mechanism is fixedly connected at the lower end of the support plate; unsettled fixture includes the supporting rod of two fixed plates, two telescopic links, two grip blocks, two L types, two threaded rods, two one end open-ended screw thread section of thick bamboos and a rolling disc, and two fixed plate symmetry fixed connection are at the lower extreme of backup pad, and the rolling disc setting is between two fixed plates, and the both sides that the rolling disc is close to the fixed plate are connected with two screw thread sections of thick bamboos. The utility model discloses a point contact replaces the face contact for wait to detect the sample and hang aloft, with the abundant contact of air, improved the accuracy nature that the emanometer detected.

Description

Radon exhalation rate detection device

Technical Field

The utility model relates to a detection device technical field especially relates to a radon exhalation rate detection device.

Background

The world health organization and the international atomic energy organization all consider radon in the air to be one of the causes of human cancers and the second cause of lung cancer (smoking is the first cause). Radon is classified as a class I carcinogen by the international agency for cancer research. At present, the problem of radon prevention and control is highly valued by European and American countries and Chinese governments, and relevant national and industrial standards are established to control radon gas pollution generated by building materials.

A detection device for radon exhalation rate on the surface of a building material is disclosed in a patent with the Chinese patent application number of CN201120137331.1, wherein a sample to be detected is placed in a box body for detection by the detection device for radon exhalation rate on the surface of the building material, but the contact between the sample and the bottom of the box body can cause the insufficient contact between the bottom of the sample and air, so that the detection effect of a radon detector is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving prior art and placing the sample that will wait to detect and detect in the box, but sample and bottom half contact can lead to sample bottom and air contact insufficient to influence the problem of the detection effect of emanometer, and the radon exhalation rate detection device who provides.

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

a radon exhalation rate detection device comprises a detection box and a radon detector, wherein the upper end of the detection box is provided with an opening, an air inlet pipe and an air outlet pipe are symmetrically communicated between the detection box and the radon detector, a box cover is arranged at a box opening of the detection box, a support plate is fixedly connected to the lower end of the box cover, and a suspended clamping mechanism is fixedly connected to the lower end of the support plate;

the suspended clamping mechanism comprises two fixed plates, two telescopic rods, two clamping plates, two L-shaped clamping rods, two threaded cylinders with one ends open and a rotating disc, the two fixed plates are symmetrically and fixedly connected to the lower ends of the supporting plates, the rotating disc is arranged between the two fixed plates, the two sides of the rotating disc close to the fixed plates are connected with the two threaded cylinders, the cylinder openings of the threaded cylinders are far away from the rotating disc, the two threaded rods are in threaded connection in the corresponding threaded cylinders, one ends of the threaded rods far away from the rotating disc penetrate through the cylinder openings of the threaded cylinders and extend outwards and are connected with the clamping plates, the vertical ends of the two clamping rods are respectively and fixedly connected to the lower ends of one clamping plate, one ends of the two telescopic rods are fixedly connected to one ends of the corresponding clamping plates far away from the threaded rods, and the other ends of the two telescopic rods are fixedly connected, one end of the threaded rod, which is close to the rotating disc, is fixedly connected with a limiting mechanism;

stop gear includes that the cross section is the spacing groove, gag lever post and the spacing dish of T type, the one end of holding plate is kept away from at the threaded rod is seted up to the gag lever post, the one end fixed connection of gag lever post is at the bottom of the section of thick bamboo in the screw thread section of thick bamboo, the other end of gag lever post passes the notch of gag lever post and extends to the spacing inslot, the one end at the bottom of the screw thread section of thick bamboo is kept away from to spacing dish fixed connection at the gag lever post.

Preferably, the clamping plate is close to the one end fixedly connected with kelly of backup pad, the draw-in groove has been seted up to the lower extreme symmetry of backup pad, the kelly is kept away from the one end of clamping plate and is extended to in the draw-in groove, just kelly sliding connection is in the draw-in groove.

Preferably, a sealing groove is formed in the vertical side wall of the supporting plate, a sealing strip is fixedly connected to the inside of the sealing groove, and one end, away from the bottom of the sealing groove, of the sealing strip is abutted to the inner box wall of the detection box.

Preferably, the center of the bottom of the detection box is fixedly connected with a soft cushion.

Preferably, a plurality of rolling grooves are uniformly and equidistantly formed in the annular side wall of the limiting disc, rolling balls are arranged in the rolling grooves, and the rolling balls are connected to the groove wall of the limiting groove in a rolling mode.

Preferably, the upper end of the box cover is symmetrically and fixedly connected with a handle.

Compared with the prior art, the utility model provides a radon exhalation rate detection device possesses following beneficial effect:

1. this radon exhalation rate detection device constitutes a unsettled fixture through setting up fixed plate, telescopic link, grip block, holding rod, threaded rod, a screw thread section of thick bamboo and rolling disc, replaces the face contact through the point contact for wait to detect the sample and hang aloft, with the abundant contact of air, improved the accuracy nature that the emanometer detected.

2. This radon exhalation rate detection device constitutes a stop gear through setting up spacing groove, gag lever post, spacing dish, and when spacing dish moved the end of spacing groove and supported, threaded rod stop motion prevented that the threaded rod breaks away from in the screw thread section of thick bamboo.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses a point contact replaces the face contact for wait to detect the sample and hang aloft, with the abundant contact of air, improved the accuracy nature that the emanometer detected.

Drawings

Fig. 1 is a schematic structural view of a radon exhalation rate detecting device provided by the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is an enlarged view of a portion B in fig. 2.

In the figure: the device comprises a detection box 1, a radon measuring instrument 2, an air inlet pipe 3, an air outlet pipe 4, a box cover 5, a support plate 6, a suspended clamping mechanism 7, a fixed plate 71, a telescopic rod 72, a clamping plate 73, a clamping rod 74, a threaded rod 75, a threaded cylinder 76, a rotating disc 77, a limiting mechanism 8, a limiting groove 81, a limiting rod 82, a limiting disc 83, a clamping rod 9, a clamping groove 10, a sealing groove 11, a sealing strip 12, a cushion 13, a rolling groove 14, a ball 15 and a handle 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a radon exhalation rate detection device comprises a detection box 1 and a radon detector 2 with openings at the upper ends, wherein an air inlet pipe 3 and an air outlet pipe 4 are symmetrically communicated between the detection box 1 and the radon detector 2, a box cover 5 is installed at a box opening of the detection box 1, a support plate 6 is fixedly connected to the lower end of the box cover 5, and a suspended clamping mechanism 7 is fixedly connected to the lower end of the support plate 6;

the suspended clamping mechanism 7 comprises two fixing plates 71, two telescopic rods 72, two clamping plates 73, two L-shaped clamping rods 74, two threaded rods 75, two threaded barrels 76 with one ends open and a rotating disc 77, wherein the two fixing plates 71 are symmetrically and fixedly connected to the lower end of the supporting plate 6, the rotating disc 77 is arranged between the two fixing plates 71, two sides of the rotating disc 77 close to the fixing plates 71 are connected with the two threaded barrels 76, the barrel openings of the threaded barrels 76 are far away from the rotating disc 77, the two threaded rods 75 are in threaded connection in the corresponding threaded barrels 76, one ends of the threaded rods 75 far away from the rotating disc 77 penetrate through the barrel openings of the threaded barrels 76 and extend outwards and are connected with the clamping plates 73, the vertical ends of the two clamping rods 74 are respectively and fixedly connected to the lower end of one clamping plate 73, and one ends of the two telescopic rods 72 are both fixedly connected to one end of the, the other ends of the two telescopic rods 72 are fixedly connected to the corresponding fixed plates 71, one end of the threaded rod 75 close to the rotating disc 77 is fixedly connected with a limiting mechanism 8, the box cover 5 is taken down firstly, a sample to be detected is placed between the two clamping rods 74, a rotating force is applied to the rotating disc 77, the rotating disc 77 drives the two threaded cylinders 76 to rotate at the same speed and in the same direction, the two threaded rods 75 drive the two clamping plates 73 to move in the opposite direction or in the opposite direction according to the rotation direction of the threaded cylinders 76 as the telescopic rods 72 can only do transverse telescopic movement to limit the threaded rod 74 connected with the clamping plates 73, the threaded rod 75 is prevented from rotating along with the rotation of the threaded cylinders 76, the two clamping plates 73 carry out synchronous movement along with the clamping rods 74, the sample to be detected is clamped through the two clamping rods 74, surface contact is replaced by point contact, so that the sample to be detected is suspended in the air, the radon detector is fully contacted with the air, so that the detection accuracy of the radon detector is improved;

stop gear 8 includes that the cross section is the spacing groove 81 of T type, gag lever post 82 and spacing dish 83, the one end of keeping away from grip block 73 is seted up at threaded rod 75 to spacing groove 81, the bobbin base of the one end fixed connection of gag lever post 82 in threaded barrel 76, the notch of gag lever post 82 is passed to the other end of gag lever post 82 and extends to spacing inslot 81, spacing dish 83 fixed connection is in the one end that threaded barrel 76 bobbin base was kept away from to gag lever post 82, when threaded rod 75 moves in threaded barrel 76, spacing groove 81 is synchronous motion, and then make relative motion between spacing groove 81 and gag lever post 82 and the spacing dish 83, when spacing dish 83 moved the end of spacing groove 81 and supported, threaded rod 75 stop motion prevents that threaded rod 75 from breaking away from in the threaded barrel 76.

Clamping plate 73 is close to the one end fixedly connected with kelly 9 of backup pad 6, draw-in groove 10 has been seted up to the lower extreme symmetry of backup pad 6, and the one end that clamping plate 73 was kept away from to kelly 9 extends to in the draw-in groove 10, and kelly 9 sliding connection is in draw-in groove 10, because kelly 9 can only be transverse motion in draw-in groove 10, carries on spacingly to the direction of motion of kelly 9, and then carries on spacingly to clamping plate 73, reduces the turning force that telescopic link 72 received.

The vertical side wall of the supporting plate 6 is provided with a sealing groove 11, a sealing strip 12 is fixedly connected in the sealing groove 11, one end, away from the bottom of the sealing groove 11, of the sealing strip 12 is abutted to the inner box wall of the detection box 1, and the air tightness between the detection box 1 and the box cover 5 is increased.

The center of the bottom of the case in the detection case 1 is fixedly connected with cushion 13, prevents to detect that the sample drops and directly pounds at the bottom of the case of detection case 1 and cause the damage.

Even equidistance has seted up a plurality of rolling groove 14 on the annular lateral wall of spacing dish 83, is equipped with rolling ball 15 in the rolling groove 14, and ball 15 roll connection supports the cell wall of spacing groove 81 through ball 15 on the cell wall of spacing groove 81 for spacing dish 83 is more stable at the motion of spacing inslot 81.

The upper end of the box cover 5 is symmetrically and fixedly connected with a handle 16, and the handle 16 is used for conveniently applying pulling force to the box cover 5.

The utility model discloses in, at first take off case lid 5, will wait to detect the sample and place between two holding rods 74, apply a turning force to carousel 77, carousel 77 drives two screw thread section of thick bamboo 76 and does the syntropy and rotate with the same speed, because telescopic link 72 can only be horizontal concertina movement, carry on spacingly to the threaded rod 74 of connecting grip block 73, prevent that threaded rod 75 from rotating along with the rotation of screw thread section of thick bamboo 76, along with the syntropy rotation of two screw thread section of thick bamboo 76, two threaded rod 75 drive two grip blocks 73 and do the motion of opposite directions or carrying on the back of the body according to the turning to of screw thread section of thick bamboo 76, two grip blocks 73 take grip block 74 again and do the synchronization movement, will wait to detect the sample and clip through two holding rods 74, replace surface contact through the point contact, make it is in the air to wait to detect the sample suspension, with the; when the threaded rod 75 moves in the threaded cylinder 76, the limiting groove 81 moves synchronously, so that the limiting groove 81, the limiting rod 82 and the limiting disc 83 move relatively, when the limiting disc 83 moves to the end of the limiting groove 81 and abuts against the limiting groove, the threaded rod 75 stops moving, and the threaded rod 75 is prevented from being separated from the threaded cylinder 76.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The radon exhalation rate detection device comprises a detection box (1) and a radon measuring instrument (2) with openings at the upper ends, wherein an air inlet pipe (3) and an air outlet pipe (4) are symmetrically communicated between the detection box (1) and the radon measuring instrument (2), and the radon exhalation rate detection device is characterized in that a box cover (5) is installed at a box opening of the detection box (1), a support plate (6) is fixedly connected to the lower end of the box cover (5), and a suspended clamping mechanism (7) is fixedly connected to the lower end of the support plate (6);

the suspended clamping mechanism (7) comprises two fixing plates (71), two telescopic rods (72), two clamping plates (73), two L-shaped clamping rods (74), two threaded rods (75), two threaded cylinders (76) with one open end and a rotating disc (77), the two fixing plates (71) are symmetrically and fixedly connected to the lower end of the supporting plate (6), the rotating disc (77) is arranged between the two fixing plates (71), two sides of the rotating disc (77) close to the fixing plates (71) are connected with the two threaded cylinders (76), the cylinder opening of each threaded cylinder (76) is far away from the rotating disc (77), the two threaded rods (75) are in threaded connection in the corresponding threaded cylinders (76), and one end of each threaded rod (75) far away from the rotating disc (77) penetrates through the cylinder opening of each threaded cylinder (76), extends outwards and is connected with the clamping plate (73), the vertical ends of the two clamping rods (74) are respectively fixedly connected to the lower end of one clamping plate (73), one ends of the two telescopic rods (72) are respectively fixedly connected to one end, far away from the threaded rod (75), of the corresponding clamping plate (73), the other ends of the two telescopic rods (72) are fixedly connected to the corresponding fixing plate (71), and one end, close to the rotating disc (77), of the threaded rod (75) is fixedly connected with a limiting mechanism (8);

stop gear (8) include spacing groove (81), gag lever post (82) and spacing dish (83) that the cross section is the T type, the one end of keeping away from grip block (73) is seted up in threaded rod (75) in spacing groove (81), the bobbin base of the one end fixed connection in threaded barrel (76) of gag lever post (82), the other end of gag lever post (82) passes the notch of spacing groove (81) and extends in spacing groove (81), the one end at the bobbin base of threaded barrel (76) is kept away from in gag lever post (82) fixed connection to spacing dish (83).

2. The radon exhalation rate detection device according to claim 1, wherein a clamping rod (9) is fixedly connected to one end of the clamping plate (73) close to the support plate (6), clamping grooves (10) are symmetrically formed in the lower end of the support plate (6), one end of the clamping rod (9) far away from the clamping plate (73) extends into the clamping groove (10), and the clamping rod (9) is slidably connected in the clamping groove (10).

3. The radon exhalation rate detection device according to claim 1, wherein a sealing groove (11) is formed in a vertical side wall of the support plate (6), a sealing strip (12) is fixedly connected in the sealing groove (11), and one end, away from the bottom of the sealing groove (11), of the sealing strip (12) abuts against the inner box wall of the detection box (1).

4. The radon exhalation rate detection device as claimed in claim 1, wherein a soft cushion (13) is fixedly connected to the center of the bottom of the detection box (1).

5. The radon exhalation rate detection device according to claim 1, wherein a plurality of rolling grooves (14) are uniformly and equidistantly formed in the annular side wall of the limiting plate (83), rolling balls (15) are arranged in the rolling grooves (14), and the rolling balls (15) are connected to the wall of the limiting groove (81) in a rolling manner.

6. The radon exhalation rate detection device according to claim 1, wherein a handle (16) is symmetrically and fixedly connected to the upper end of the box cover (5).