CN113075718A

CN113075718A - Radiation detection device

Info

Publication number: CN113075718A
Application number: CN202110634096.7A
Authority: CN
Inventors: 伦俊杰; 黄丽丽
Original assignee: Changle County Peoples Hospital
Current assignee: Changle County Peoples Hospital
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-07-06
Anticipated expiration: 2041-06-08
Also published as: CN113075718B

Abstract

The invention discloses a radioactive ray detection device which comprises a base, wherein a water containing tank is arranged on the base, a side bracket capable of rotating around the water containing tank is arranged on the base, the top end of the side bracket is connected with a cantilever, a first suspender and a second suspender are rotatably arranged on the cantilever, a horizontal supporting arm capable of sliding up and down along the second suspender is arranged in the water containing tank, a fixed sleeve is arranged on the horizontal supporting arm, the first suspender penetrates through the fixed sleeve and is connected with the fixed sleeve through threads, a first belt wheel and a second belt wheel are arranged on the horizontal supporting arm, the first belt wheel is sleeved on the second suspender in a slidable and non-rotatable mode, a synchronous belt is arranged between the first belt wheel and the second belt wheel, a movable seat is fixedly connected onto the synchronous belt, and a nuclear radiation detector is. The invention can detect the radiation intensity of different positions of the ray path and different radiuses of the radiation range, the water level in the water containing tank can be automatically adjusted, and water does not need to be temporarily added into the water containing tank in the using process.

Description

Radiation detection device

Technical Field

The invention relates to the technical field of radiation measurement, in particular to a radiation detection device.

Background

With the development of science and technology, nuclear radiation technology is widely applied in different fields such as medical treatment, security inspection, industrial and agricultural production and the like. For example, X-rays are used for radiation therapy and safety inspection, X-rays are used for industrial inspection, and gamma rays are used for agricultural breeding. In order to ensure safety and effectiveness of radiation use, the radiation intensity of radiation needs to be detected in advance, which requires the use of a radiation detection apparatus.

The conventional radioactive ray detection device comprises a water tank, wherein a nuclear radiation detector is fixedly arranged in the water tank, water is filled in the water tank, and the nuclear radiation detector is submerged under water to a certain depth, so that the transmitted radioactive ray can be detected.

Such a radiation detection apparatus has disadvantages in that: the nuclear radiation detector is fixedly installed in the water tank, when the radiation intensity of different positions of a ray path and different radiuses of a radiation range needs to be detected, the height and the horizontal position of the water tank need to be frequently adjusted, and the adjustment is very inconvenient due to the fact that the water tank is heavy.

Disclosure of Invention

The present invention has been made in view of the above problems, and an object of the present invention is to provide a radiation detecting apparatus which does not require adjustment of the height and horizontal position of a water tank during use and is more convenient to use.

In order to achieve the above object, the present invention discloses a radiation detecting apparatus including a base, install water containing tank on the base, install on the base and can center on water containing tank pivoted collateral branch frame, the top of collateral branch frame is connected with the cantilever that stretches to water containing tank opening part, rotate on the cantilever and install the first jib that the lower extreme stretches to water containing tank, the second jib, be equipped with gliding horizontal support arm from top to bottom along the second jib in the water containing tank, be equipped with the fixed sleeve on the horizontal support arm, first jib passes fixed sleeve and both pass through threaded connection, install first band pulley on the horizontal support arm, the second band pulley, first band pulley is with the nonrotatable mode suit of slidable on the second jib, be equipped with the hold-in range between first band pulley and the second band pulley, the movable seat of horizontal support arm motion can be followed to fixedly connected with on the hold-in range, install nuclear radiation detector on the movable seat. After adopting above-mentioned structure, can detect the radiation intensity of ray path different positions through the regulation to horizontal support arm height, can detect the radiation intensity of the different radiuses of radiation range through the regulation of offside support turned angle and the regulation of nuclear radiation detector position on horizontal support arm, it is more comprehensive to detect the radioactive ray like this, and the testing result is also more accurate.

And a first servo motor for driving the first suspender to rotate is arranged on the cantilever. First servo motor can accurate control the rotation of first jib, utilizes fixed sleeve, first jib to go up the cooperation of internal and external screw thread and can order about horizontal support arm lift.

And a second servo motor for driving the second suspender to rotate is arranged on the cantilever. The second servo motor can accurately control the second suspender to rotate, the second suspender drives the first belt wheel to rotate, the synchronous belt is driven to rotate, and finally the movable seat and the nuclear radiation detector move along the horizontal supporting arm.

The water containing tank comprises a tray and an outer cylinder body which is connected to the tray and made of transparent materials. The tray and the outer cylinder body can be made of different materials, so that the bottom of the water containing tank is ensured to have enough strength while the side wall of the water containing tank is ensured to be transparent.

A connecting column is arranged between the base and the tray, a rotating sleeve is sleeved on the connecting column, a supporting arm extending to the edge of the tray is fixedly connected to the rotating sleeve, and the lower end of the side support is connected to the supporting arm. The spliced pole is used for connecting the base and provides the support to the tray, and the trailing arm is used for connecting and rotates sleeve and collateral branch frame, makes the collateral branch frame rotate around flourishing water tank.

The rotating sleeve is fixedly connected with a gear ring, a third servo motor and a gear driven by the third servo motor are installed on the base, and the gear is meshed with the gear ring. The third servo motor can drive the gear to rotate, and the gear is meshed with the gear ring to enable the rotating sleeve to rotate for a certain angle.

The base is a box structure, a water storage cavity is arranged in the base, a central hole is formed in the connecting column, a check valve allowing water to flow upwards from the bottom is installed at the upper section of the central hole, a pipe joint is connected with the lower section of the central hole, a water pump is installed in the water storage cavity, a water outlet pipe is connected with a water outlet pipe, and the other end of the water outlet pipe is connected with the pipe joint. The water storage cavity can store part of water, the water pump can pump water from the water storage cavity and send the water into the water containing tank, and the check valve arranged on the upper section of the central hole can prevent the water in the water containing tank from reversely flowing into the water storage cavity. The structure can adjust the water level in the water containing tank, and avoids the trouble of adding water into the water containing tank.

The second suspender is a cylinder with two sides cut into planes, and the inner hole of the first belt wheel is in a shape matched with the second suspender. The second suspender adopts the structure, thereby not hindering the up-and-down movement of the horizontal supporting arm, but also utilizing the rotation of the second suspender to drive the first belt wheel to rotate.

The horizontal support arm is fixedly connected with a guide sleeve, an inner hole of the guide sleeve is a round hole, and the second suspender penetrates through the inner hole of the guide sleeve. The guide sleeve can be used as a guide for the up-and-down movement of the horizontal support arm and does not obstruct the rotation of the second suspender.

Three threaded sleeves are annularly distributed at the bottom of the base, the threaded sleeves are in threaded connection with adjusting bolts, and the lower ends of the adjusting bolts are connected with a supporting plate. When the water containing tank is not enough in levelness, the levelness of the water containing tank can be adjusted by rotating any two supporting disks.

In conclusion, the beneficial effects of the invention are as follows: the height, the angle and the horizontal position of the nuclear radiation detector in the water containing tank can be adjusted, so that the radiation intensities of different positions of a ray path and different radiuses of a radiation range can be detected and used as a reference in the use process of the radiation emitting device, and the use effect and the use safety of the radiation emitting device are ensured; in the radioactive ray detection device, the water level in the water containing tank can be automatically adjusted, and water does not need to be temporarily added into the water containing tank in the using process.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 taken along line A-A;

fig. 3 is an enlarged view of the first boom and the first pulley of fig. 2.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Referring to the attached drawings, the radioactive ray detection device disclosed by the invention comprises a base 1, wherein a water containing tank 2 which is cylindrical in shape and transparent in side wall is arranged on the base 1. The base 1 is provided with a side bracket 3 which can rotate around the water containing tank 2, the top end of the side bracket 3 is connected with a cantilever 4 extending to the opening of the water containing tank 2, and the cantilever 4 is rotatably provided with a first suspender 5 and a second suspender 6, the lower end of which extends to the inside of the water containing tank 2. Be equipped with in the flourishing water tank 2 and follow gliding horizontal support arm 7 from top to bottom of second jib 6, be equipped with fixed sleeve 8 on the horizontal support arm 7, first jib 5 passes fixed sleeve 8, is equipped with the external screw thread, the internal thread of looks adaptation on first jib 5, the fixed sleeve 8 and is connected through the screw thread. The horizontal supporting arm 7 is provided with a first belt wheel 9 and a second belt wheel 10 which are rotatable, the first belt wheel 9 is sleeved on the second suspender 6 in a slidable and non-rotatable mode, and a synchronous belt 11 which wraps the first belt wheel 9 and the second belt wheel 10 is arranged between the first belt wheel 9 and the second belt wheel. The horizontal supporting arm 7 is provided with a movable seat 12 capable of moving along the length direction of the horizontal supporting arm, the movable seat 12 is fixedly connected to the synchronous belt 11, and the movable seat 12 is provided with a nuclear radiation detector 13. The nuclear radiation detector 13 is a detection device for detecting the intensity of radiation, such as an ionization chamber, a counting tube, a scintillation counter, or the like.

When the radioactive ray detection device is used, the radioactive ray detection device can be placed below the radioactive ray emitting device, water is added into the water containing tank 2 to a certain height, the water body is used as a quality control die body for detecting the radioactive rays, the radioactive rays penetrate through a water layer to irradiate the nuclear radiation detector 13, and the nuclear radiation detector 13 detects the radiation intensity of the radioactive rays. The side bracket 3, the cantilever 4, the two suspenders and the horizontal supporting arm 7 together form a mounting bracket body for mounting the nuclear radiation detector 13, so that the nuclear radiation detector 13 is positioned in the water containing tank 2. Can adjust the angle of horizontal support arm 7 for flourishing water tank 2 through rotating side support 3 to adjust the angle of horizontal support arm 7, can make horizontal support arm 7 rise or descend through rotating first jib 5, can order about hold-in range 11 through rotating second jib 6 and rotate, drive nuclear radiation detector 13 and follow horizontal support arm 7 and move. As can be seen from this, the radiation detection apparatus is advantageous in that: the radiation intensity of different positions of a ray path can be detected by adjusting the height of the horizontal supporting arm 7, and the radiation intensity of different radiuses of a radiation range can be detected by adjusting the rotation angle of the side support 3 and the position of the nuclear radiation detector 13 on the horizontal supporting arm 7, so that the detection of radioactive rays is comprehensive, and the detection result is more accurate. The detection result can be used as a reference for the use of the radiation emitting apparatus, for example, in the treatment of tumors.

In order to facilitate the adjustment of the height of the horizontal support arm 7, a first servomotor 14 for driving the first boom 5 in rotation is mounted on the boom 4. The first servo motor 14 can accurately control the rotation of the first suspender 5, and the horizontal supporting arm 7 can be driven to lift by the matching of the fixing sleeve 8 and the internal and external threads on the first suspender 5.

For adjusting the position of the nuclear radiation detector 13 on the horizontal support arm 7, a second servomotor 15 for rotating the second boom 6 is mounted on the boom 4. The second servo motor 15 can accurately control the second suspender 6 to rotate, the second suspender 6 drives the first belt pulley 9 to rotate, the synchronous belt 11 is driven to rotate, and finally the movable seat 12 and the nuclear radiation detector 13 move along the horizontal supporting arm 7.

In this embodiment, the water containing tank 2 includes a tray 16 and an outer cylinder 17 made of a transparent material and attached to the tray 16. The tray 16 and the outer cylinder 17 can be made of different materials, so that the bottom of the water containing tank 2 is ensured to have enough strength while the side wall of the water containing tank is transparent. In order to realize the connection between the base 1 and the tray 16, a connecting column 18 is arranged between the base 1 and the tray 16. The connecting column 18 is sleeved with a rotating sleeve 19, the rotating sleeve 19 is fixedly connected with a supporting arm 20 extending to the edge of the tray 16, and the lower end of the side bracket 3 is connected to the supporting arm 20. The connecting column 18 is used for connecting the base 1 and providing support for the tray 16, and the bracket arm 20 is used for connecting the rotating sleeve 19 and the side bracket 3, so that the side bracket 3 can rotate around the water containing tank 2.

In order to accurately control the rotation angle of the side bracket 3, a gear ring 21 is fixedly connected to the rotating sleeve 19, a third servo motor 22 and a gear 23 driven by the third servo motor 22 are installed on the base 1, and the gear 23 is meshed with the gear ring 21. The third servomotor 22 can drive the gear 23 to rotate, and the rotating sleeve 19 is rotated by a certain angle by the engagement of the gear 23 with the ring gear 21.

In the embodiment shown in fig. 1 and 2, the present invention is further improved, the improved base 1 is a box structure, a water storage cavity 24 is arranged in the box structure, a central hole 25 is arranged on the connecting column 18, and a one-way valve 26 allowing water to flow from bottom to top is arranged at the upper section of the central hole 25. In order to ensure the sealing between the check valve 26 and the central hole 25, the check valve 26 is provided with a plurality of sealing grooves, and sealing rings are arranged in the sealing grooves. The lower section of the central hole 25 is connected with a pipe joint 27, a water pump 28 is arranged in the water storage cavity 24, the water outlet of the water pump 28 is connected with a water outlet pipe 29, and the other end of the water outlet pipe 29 is connected with the pipe joint 27. A part of water can be stored in the water storage cavity 24, the water pump 28 can pump water from the water storage cavity 24 and send the water into the water containing tank 2, and the check valve 26 arranged at the upper section of the central hole 25 can prevent the water in the water containing tank 2 from reversely flowing into the water storage cavity 24. The structure can adjust the water level in the water containing tank 2, and avoids the trouble of adding water into the water containing tank 2. In order to add water into the water storage cavity 24 and discharge water in the water containing tank 2 conveniently, a water return pipe communicated with the water storage cavity 24 can be further arranged on the water containing tank 2, and an electromagnetic valve is mounted on the water return pipe.

In order to realize that the first belt pulley 9 is sleeved on the second suspension rod 6 in a slidable and non-rotatable manner, the second suspension rod 6 is a cylinder with two sides cut into planes 32, so that the section of the second suspension rod 6 is not a full circle any more, and the inner hole of the first belt pulley 9 is in a shape matched with the second suspension rod 6, so that the first belt pulley 9 can slide up and down relative to the second suspension rod 6, but cannot rotate relative to the second suspension rod. The second suspender 6 adopts the structure, which can not only prevent the up-and-down movement of the horizontal supporting arm 7, but also drive the first belt pulley 9 to rotate by utilizing the rotation of the second suspender 6. In order to realize the guiding of the up-and-down movement of the horizontal supporting arm 7 and not to hinder the rotation of the second suspender 6, the horizontal supporting arm 7 is fixedly connected with a guiding sleeve 33, the inner hole of the guiding sleeve 33 is a round hole, and the second suspender 6 passes through the inner hole of the guiding sleeve 33.

In order to adjust the levelness of the water tank 2, three threaded sleeves 34 (only two threaded sleeves 34 are shown in the figure) are annularly distributed at the bottom of the base 1, the threaded sleeves 34 are screwed with adjusting bolts, and the lower ends of the adjusting bolts are connected with a supporting plate 35. When the water containing tank 2 is not enough in levelness, the levelness of the water containing tank 2 can be adjusted by rotating any two supporting disks 35.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A radioactive ray detection device comprises a base (1) and is characterized in that a water containing tank (2) is mounted on the base (1), a side bracket (3) capable of rotating around the water containing tank (2) is mounted on the base (1), a cantilever (4) extending to an opening of the water containing tank (2) is connected to the top end of the side bracket (3), a first suspender (5) and a second suspender (6) are rotatably mounted on the cantilever (4), a horizontal supporting arm (7) capable of sliding up and down along the second suspender (6) is arranged in the water containing tank (2), a fixing sleeve (8) is arranged on the horizontal supporting arm (7), the first suspender (5) penetrates through the fixing sleeve (8) and is connected with the fixing sleeve and the second suspender through threads, a first belt wheel (9) and a second belt wheel (10) are mounted on the horizontal supporting arm (7), the first belt wheel (9) is sleeved on the second suspender (6) in a slidable and non-rotatable manner, be equipped with hold-in range (11) between first band pulley (9) and second band pulley (10), fixedly connected with can follow sliding seat (12) of horizontal support arm (7) motion on hold-in range (11), install nuclear radiation detector (13) on sliding seat (12).

2. The radiation detecting apparatus according to claim 1, wherein a first servo motor (14) for rotating the first boom (5) is mounted on the arm (4).

3. The radiation detecting apparatus according to claim 1, wherein a second servo motor (15) for driving the second boom (6) to rotate is mounted on the arm (4).

4. The radiation detecting apparatus according to claim 1, wherein the water containing tank (2) includes a tray (16) and an outer cylinder (17) made of a transparent material attached to the tray (16).

5. The radiation detecting apparatus according to claim 4, wherein a connecting column (18) is provided between the base (1) and the tray (16), a rotating sleeve (19) is sleeved on the connecting column (18), a supporting arm (20) extending to the edge of the tray (16) is fixedly connected to the rotating sleeve (19), and the lower end of the side bracket (3) is connected to the supporting arm (20).

6. The radiation detecting apparatus according to claim 5, wherein a ring gear (21) is fixedly connected to the rotary sleeve (19), a third servo motor (22) and a gear (23) driven by the third servo motor (22) are mounted on the base (1), and the gear (23) is engaged with the ring gear (21).

7. The radiation detection apparatus according to claim 4, wherein the base (1) is a box structure, a water storage cavity (24) is provided inside the base, a central hole (25) is provided on the connection column (18), a check valve (26) allowing water to flow upward from bottom to top is installed on the upper section of the central hole (25), a pipe joint (27) is connected to the lower section of the central hole (25), a water pump (28) is installed in the water storage cavity (24), a water outlet pipe (29) is connected to a water outlet of the water pump (28), and a pipe joint (27) is connected to the other end of the water outlet pipe (29).

8. The radiation detecting apparatus according to claim 1, wherein the second suspension lever (6) is a cylinder with both sides cut into flat surfaces (32), and the inner hole of the first pulley (9) has a shape corresponding to the second suspension lever (6).

9. The radiation detecting apparatus according to claim 8, wherein a guide sleeve (33) is fixedly attached to the horizontal support arm (7), an inner hole of the guide sleeve (33) is a circular hole, and the second hanger bar (6) passes through the inner hole of the guide sleeve (33).

10. The radiation detecting apparatus according to any one of claims 1 to 9, wherein three threaded sleeves (34) are annularly arranged on the bottom of the base (1), the threaded sleeves (34) are screwed with adjusting bolts, and the lower ends of the adjusting bolts are connected with a support plate (35).