CN211123089U

CN211123089U - Low-frequency 9K-30M radiation testing device for 3M darkroom

Info

Publication number: CN211123089U
Application number: CN201921970063.4U
Authority: CN
Inventors: 王勇
Original assignee: Shenzhen Yitong Standard Technology Co ltd
Current assignee: Shenzhen Yitong Standard Technology Co ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-07-28
Anticipated expiration: 2029-11-14

Abstract

The utility model discloses a low-frequency 9K-30M radiation testing device for a 3M darkroom, which comprises a darkroom, wherein a motor is fixedly connected to the upper side of the upper wall of the darkroom, the output end of the motor is fixedly connected with a rotating shaft through a shaft coupling, one end of the rotating shaft is rotated through the upper wall of the darkroom through a bearing, one end of the rotating shaft is fixedly connected with a fixed plate, the upper side of the fixed plate is fixedly connected with an electric sliding table, one side of the moving end of the electric sliding table is fixedly connected with a first connecting block, one side of the first connecting block is fixedly connected with an electric push rod, the lower end of the electric push rod is fixedly connected with a clamping mechanism, and a radiation detector body is tightly pressed and fixed in the clamping mechanism, set up the shielding case, can shield electronic slip table and electric putter's radiation.

Description

Low-frequency 9K-30M radiation testing device for 3M darkroom

Technical Field

The utility model relates to a radiation detection device field specifically is a be used for 9K-30M radiation testing arrangement of 3M darkroom low frequency.

Background

Generally, for radiation testing, the test sites are divided into three types, full anechoic chamber, half anechoic chamber and open field. The radiation tests performed in the three test sites can be generally considered to accord with the propagation rule of the electromagnetic wave in the free space. Anechoic chambers are used to simulate open fields. The size of the anechoic chamber and the selection of the radio frequency wave-absorbing material are mainly determined by the dimension of the tested equipment and the test requirements, and are divided into a 1m method, a 3m method and a 10m method. The anechoic chamber mainly comprises a shielding chamber and a wave-absorbing material. The shielding chamber is composed of a shielding shell, a shielding door, a ventilation waveguide window, various power filters and the like. The shielding shell can adopt a welding type or assembling type structure. The wave-absorbing material is composed of a single-layer ferrite sheet with the working frequency range of 30MHz-1000MHz and a conical carbon-containing sponge wave-absorbing material, wherein the conical carbon-containing sponge wave-absorbing material is formed by polyurethane foam plastic which permeates in a carbon adhesive solution and has better flame-retardant property.

Part of 3m darkroom low-frequency radiation testing devices are inconvenient to move and detect the radiation of detected objects in all directions, at different distances and at different heights, and the detection result is incomplete; the low-frequency radiation testing device of a 3m dark room can introduce a new radiation source and cannot reduce the interference of external radiation to the maximum extent.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be used for 3M darkroom low frequency 9K-30M radiation testing device sets up motor and fixed plate, can realize the rotation of radiation detector body, sets up electronic slip table and electric putter, and the distance and the height of adjustable radiation detector body set up the shielded cell, can shield electronic slip table and electric putter's radiation to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a be used for 3M darkroom low frequency 9K-30M radiation testing device, includes the darkroom, darkroom upper wall upside fixedly connected with motor, the motor output passes through shaft coupling fixedly connected with pivot, pivot one end is rotated through the bearing and is run through the darkroom upper wall, pivot one end fixedly connected with fixed plate, the electronic slip table of fixed plate upside fixedly connected with, the first connecting block of removal end one side fixedly connected with of electronic slip table, first connecting block one side fixedly connected with electric putter, electric putter lower extreme fixedly connected with clamping mechanism, the inside radiation detector body that compresses tightly of clamping mechanism, fixed plate one side fixedly connected with second connecting block, second connecting block one side fixedly connected with shielded cell.

Preferably, the clamping mechanism comprises a concave block, the upper side of the concave block is fixedly connected to the rotating shaft, a threaded knob is rotatably connected to one side of the concave block through threads, a pressing plate is fixedly connected to one end of the threaded knob, and an elastic rubber layer covers one side of the pressing plate.

Preferably, the motor is a stepping motor, and the surface of the rotating shaft is rotatably connected with the upper wall of the shielding box through a bearing.

Preferably, one side of the shielding box is rotatably connected with a box door through a hinge, and one side of the box door is fixedly connected with the shielding box through a hasp.

Preferably, the shielding case downside has been seted up the bar through-hole, electric putter passes the bar through-hole and extends in the shielding case downside.

Preferably, rectangular through holes are formed in two sides of the shielding box, a moving plate is connected to the inside of each rectangular through hole in a sliding mode, and the electric push rod is fixedly connected and inserted in the middle of the moving plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. The radiation detector is provided with a motor and a fixed plate, the motor drives the fixed plate to rotate through a rotating shaft, so that the radiation detector body can rotate, the distance between the radiation detector body and an object to be detected can be adjusted, an electric push rod is arranged, the height of the radiation detector body is adjusted, and the detection result is comprehensive;

2. Set up the shielding case, can shield electronic slip table and electric putter's radiation, can play the interference that weakens external radiation to the at utmost.

Drawings

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

FIG. 2 is a schematic view of a portion A of FIG. 1 according to the present invention;

Fig. 3 is a schematic view of the internal structure of the present invention.

In the figure: 1. a darkroom; 2. a motor; 3. a rotating shaft; 4. a fixing plate; 5. an electric sliding table; 6. a first connection block; 7. an electric push rod; 8. a clamping mechanism; 9. a radiation detector body; 10. a second connecting block; 11. a shielding box; 801. a concave block; 802. a threaded knob; 803. pressing a plate; 12. a box door; 13. a strip-shaped through hole; 14. a rectangular through hole; 15. and (5) moving the plate.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a be used for 3M darkroom low frequency 9K-30M radiation testing arrangement, includes

darkroom

1, 1 upper wall upside fixedly connected with motor 2 of darkroom, for making the output of motor 2 rotate certain angle at every turn, be convenient for measure the radiation around the object, set up motor 2 for step motor, 3 surfaces of pivot rotate through the bearing and connect 11 upper walls of shielded cell.

2 output ends of the motor pass through a shaft coupling fixedly connected with

pivot

3, 3 one ends of the pivot are rotated through the bearing and run through 1 upper wall of darkroom, 3 one end fixedly connected with fixed plates 4 of pivot, 4 upside fixedly connected with electric slipways 5 of fixed plate, the first connecting block 6 of removal end one side fixedly connected with of electric slipway 5, 6 one side fixedly connected with electric putter 7 of first connecting block, 7 lower extreme fixedly connected with clamping mechanism 8 of electric putter, clamping mechanism 8 includes concave piece 801, concave piece 801 upside fixedly connected in pivot 3, concave piece 801 one side is rotated through the screw thread and is connected with screw thread knob 802, screw thread knob 802 one end fixedly connected with clamp plate 803, clamp plate 803 one side covers there is the elastic rubber layer.

The inside of clamping mechanism 8 compresses tightly and is fixed with radiation detector body 9, and fixed plate 4 one side fixedly connected with second connecting block 10, second connecting block 10 one side fixedly connected with shielded cell 11. In order to facilitate the maintenance of the equipment inside the shielding box 11, a box door 12 is rotatably connected to one side of the shielding box 11 through a hinge, and the shielding box 11 is fixedly connected to one side of the box door 12 through a hasp. The shielding box 11 is made of wave-absorbing material, the wave-absorbing material is composed of a single-layer ferrite sheet with the working frequency range of 30MHz-1000MHz and a conical carbon-containing sponge wave-absorbing material, the conical carbon-containing sponge wave-absorbing material is formed by polyurethane foam plastic permeating in a carbon adhesive solution, and the conical carbon-containing sponge wave-absorbing material has a good flame-retardant characteristic.

In order to facilitate the horizontal movement of the electric push rod 7, a strip-shaped through hole 13 is formed in the lower side of the shielding box 11, and the electric push rod 7 penetrates through the strip-shaped through hole 13 and extends to the lower side of the shielding box 11. In order to seal the shielding box 11, the gaps of the strip-shaped through holes 13 are plugged, and the electric push rod 7 is not blocked from moving, rectangular through holes 14 are formed in two sides of the shielding box 11, a moving plate 15 is connected to the inside of each rectangular through hole 14 in a sliding mode, and the electric push rod 7 is fixedly connected and inserted in the middle of the moving plate 15.

The working principle is as follows: an object to be detected enters the darkroom 1, the motor 2 drives the fixing plate 4 to rotate through the rotating shaft 3, so that the radiation detector body 9 can rotate, the moving end of the electric sliding table 5 can drive the radiation detector body 9 to move through the electric push rod 7, the distance between the radiation detector body 9 and the object to be detected can be adjusted, and the electric push rod 7 can extend and shorten, so that the height of the radiation detector body 9 can be adjusted; the shielding case 11 can shield the radiation of electronic slip table 5 and electric putter 7, and the movable plate 15 can seal shielding case 11, plugs up the breach of bar through-hole 13 to movable plate 15 can be along with electric putter 7 horizontal migration, does not hinder electric putter 7's removal, can play the interference that weakens external radiation in the at utmost.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A low-frequency 9K-30M radiation testing device for a 3M darkroom comprises a darkroom (1) and is characterized in that: the upper side of the upper wall of the darkroom (1) is fixedly connected with a motor (2), the output end of the motor (2) is fixedly connected with a rotating shaft (3) through a coupler, one end of the rotating shaft (3) penetrates through the upper wall of the darkroom (1) through the rotation of a bearing, one end of the rotating shaft (3) is fixedly connected with a fixed plate (4), an electric sliding table (5) is fixedly connected with the upper side of the fixed plate (4), one side of the moving end of the electric sliding table (5) is fixedly connected with a first connecting block (6), one side of the first connecting block (6) is fixedly connected with an electric push rod (7), the lower end of the electric push rod (7) is fixedly connected with a clamping mechanism (8), a radiation detector body (9) is tightly pressed and fixed in the clamping mechanism (8), fixed plate (4) one side fixedly connected with second connecting block (10), second connecting block (10) one side fixedly connected with shielded cell (11).

2. A low frequency 9K-30M radiation testing device for a 3M dark room according to claim 1, wherein: clamping mechanism (8) are including concave piece (801), concave piece (801) upside fixed connection is in pivot (3), concave piece (801) one side is connected with screw thread knob (802) through the screw thread rotation, screw thread knob (802) one end fixedly connected with clamp plate (803), clamp plate (803) one side covers there is the elasticity rubber layer.

3. A low frequency 9K-30M radiation testing device for a 3M dark room according to claim 1, wherein: the motor (2) is a stepping motor, and the surface of the rotating shaft (3) is rotatably connected with the upper wall of the shielding box (11) through a bearing.

4. A low frequency 9K-30M radiation testing device for a 3M dark room according to claim 1, wherein: one side of the shielding box (11) is rotatably connected with a box door (12) through a hinge, and one side of the box door (12) is fixedly connected with the shielding box (11) through a hasp.

5. A low frequency 9K-30M radiation testing device for a 3M dark room according to claim 1, wherein: bar through-hole (13) have been seted up to shielded cell (11) downside, electric putter (7) pass bar through-hole (13) and extend in shielded cell (11) downside.

6. A low frequency 9K-30M radiation testing device for a 3M dark room according to claim 1, wherein: rectangular through holes (14) are formed in two sides of the shielding box (11), a moving plate (15) is connected to the inside of each rectangular through hole (14) in a sliding mode, and the electric push rod (7) is fixedly connected and inserted in the middle of the moving plate (15).