Neutron dose rate instrument with wide energy response

Abstract

The utility model discloses a neutron dose rate meter with wide energy response, which belongs to the technical field of neutron dose rate meters and comprises a shell, a threaded column is fixedly connected to the top end of the shell, a fixing assembly is arranged at the top end of the shell, and a sealing assembly is arranged between the fixing assembly and the shell. According to the utility model, the gear ring is arranged inside, during installation, the gear ring is driven by the grip to rotate, and the threaded sleeve is driven by the gear to rotate, so that the threaded sleeve is driven by the gear ring to synchronously rotate so as to enable the top cover to stably descend, and through the design, the top cover can stably descend during installation and fixation. The gear and the threaded sleeve can be driven to synchronously rotate only by rotating the gear ring, so that the operation becomes simple, a worker can conveniently operate, meanwhile, due to the synchronous rotation of the threaded sleeve, the top cover can stably descend to avoid inclination, the sealing sleeve can be uniformly stressed, and the sealing effect is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to neutron dose rate instrument technical field especially relates to a wide energy response's neutron dose rate instrument. BACKGROUND

[0002] Neutron dose rate instrument is a kind of instrument specially designed for measuring neutron radiation dose rate, accurate measurement result can be provided in the neutron radiation environment of different energy range, the instrument is usually used in nuclear facilities, radioactive work place, radiation monitoring etc. Field, to detect whether the neutron radiation in the environment is qualified, to ensure the health of the staff in the environment.

[0003] In the use process of neutron dose rate instrument, the detection module needs to be placed in the shell with energy compensation structure, and it is sealed and fixed, and the traditional sealing and fixing mode usually adopts the combination mode of nut and threaded column, but when fastening, only single nut can be fixed, and other nuts are tightened and fixed one by one, so that a certain time is wasted, in order to solve the above problems, therefore, a wide energy response's neutron dose rate instrument is needed to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at: in order to solve in the use process of neutron dose rate instrument, the detection module needs to be placed in the shell with energy compensation structure, and it is sealed and fixed, and the traditional sealing and fixing mode usually adopts the combination mode of nut and threaded column, but when fastening, only single nut can be fixed, and other nuts are tightened and fixed one by one, so that a certain time is wasted, and a wide energy response's neutron dose rate instrument is provided.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme: a wide energy response's neutron dose rate instrument, including shell, the threaded column is fixedly connected at the top of shell, the placing groove is set up in the shell, the sealing groove is set up at the top of shell, the fixed assembly is equipped at the top of shell, and the sealing assembly is equipped between the fixed assembly and shell;

[0006] The fixed assembly includes top cover, the detection module is fixedly connected in the top cover, the threaded sleeve is rotatably connected in the through hole set up in the top cover, the threaded sleeve top is fixedly connected with gear, the top surface of top cover is equipped with gear ring, the outer wall of gear ring is fixedly connected with handle, and the top surface of top cover is fixedly connected with limiting frame.

[0007] As a further description of the above technical scheme:

[0008] The threaded sleeve is threadedly connected with threaded column by the thread set up in it, and the gear is engaged with gear ring.

[0009] As a further description of the above technical solutions:

[0010] The tooth ring is located in the groove in the limiting frame and is in sliding connection with the limiting frame, and the detection module is located in the placing groove.

[0011] As a further description of the above technical solutions:

[0012] The sealing assembly comprises a sealing ring, an extrusion ring in sliding connection with the sealing ring through a groove in the sealing ring, and a push rod in sliding connection with the sealing ring through a groove in the sealing ring.

[0013] As a further description of the above technical solutions:

[0014] One end of the push rod is fixedly connected with a pressing plate, the push rod and the pressing plate are provided with a plurality of push rods and pressing plates and are spaced apart from each other, the other end of the push rod is in contact with the extrusion ring and the contact surface is an inclined surface, and the top surface of the push rod is fixedly connected with a fixing strip.

[0015] As a further description of the above technical solutions:

[0016] One side of the fixing strip is fixedly connected with a spring, the other end of the spring is fixedly connected with the sealing ring, the top end of the sealing ring is fixedly connected with the top cover, and the surface of the sealing ring has a certain toughness.

[0017] As described above, due to the adoption of the above technical solutions, the beneficial effects of the present application are:

[0018] In the present application, the tooth ring is arranged in the inner part, during installation, the detection module is placed in the placing groove, and the position of the threaded sleeve corresponds to the threaded column, so that the tooth ring is rotated by the handle and the threaded sleeve is rotated by the gear, thereby the threaded sleeve is synchronously rotated by the tooth ring to make the top cover smoothly descend, through the design, during installation and fixation, only the tooth ring is rotated to synchronously rotate the gear and the threaded sleeve, thereby the operation is simple and the staff can operate conveniently, and since the synchronous rotation of the threaded sleeve can make the top cover smoothly descend to avoid tilting, the sealing sleeve can be uniformly stressed to ensure the sealing effect.

[0019] In this invention, a pressure plate is installed inside. During sealing, as the top cover descends, the sealing ring descends and enters the sealing groove. The sealing ring is then pressed downwards by the top cover, causing the pressure ring to compress the push rod. This, in turn, causes the pressure plate to move and apply pressure to both sides of the sealing ring, resulting in a tighter fit between the sealing ring and the sealing groove. This design achieves the effect that when the top cover seals, it compresses the sealing ring, causing the pressure block to move. The pressure block then compresses the push rod, causing the pressure plate to compress the sealing ring, resulting in a tighter contact between the sealing ring and the sealing groove. This further ensures the seal between the top cover and the outer shell. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of a neutron dose rate meter with a wide energy response.

[0021] Figure 2 This is a schematic diagram of the exploded three-dimensional structure of a neutron dose rate meter with a wide energy response.

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of a sealed component in a neutron dose rate meter with a wide energy response, showing a localized explosion.

[0023] Figure 4 This is a schematic diagram of the exploded three-dimensional structure of a fixed component in a neutron dose rate meter with a wide energy response.

[0024] Figure 5 This is a magnified three-dimensional structural diagram of point A in a neutron dose rate meter with a wide energy response.

[0025] Legend:

[0026] 1. Placement slot; 2. Threaded post; 3. Housing; 4. Sealing groove; 5. Sealing assembly; 51. Sealing ring; 52. Compression ring; 53. Pressure plate; 54. Spring; 55. Fixing strip; 56. Push rod; 6. Fixing assembly; 61. Gear; 62. Threaded sleeve; 63. Gear ring; 64. Handle; 65. Limiting bracket; 66. Top cover; 67. Detection module. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-5The utility model provides a technical scheme: a neutron dose rate appearance of wide energy response, including shell 3, the top fixedly connected with screw thread column 2 of shell 3, be equipped with the placement groove 1 in shell 3, the top of shell 3 is equipped with sealing groove 4, shell 3 top is equipped with fixed component 6, fixed component 6 with shell 3 between being equipped with sealing component 5,

[0029] Fixed component 6 includes the top cover 66, the fixedly connected with detection module group 67 in top cover 66, top cover 66 is rotatably connected with the threaded sleeve 62 through the through -hole being set up in it, the top fixedly connected with gear 61 of threaded sleeve 62, the top surface of top cover 66 is equipped with the tooth ring 63, the tooth ring 63 outer wall fixedly connected with handle 64, the top surface of top cover 66 is fixedly connected with the limiting frame 65.

[0030] Threaded sleeve 62 is screwed with screw thread column 2 through the thread being set up in it, gear 61 is engaged with tooth ring 63, tooth ring 63 is in the groove in limiting frame 65 and with limiting frame 65 sliding connection, detection module group 67 is in the placement groove 1,

[0031] Its specific implementation is: when installing, detection module group 67 is put into the placement groove 1 and the position of threaded sleeve 62 corresponds with screw thread column 2, so that screw thread column 2 is inserted into threaded sleeve 62, then tooth ring 63 is driven to rotate through handle 64 to drive gear 61 to rotate and drive threaded sleeve 62 to rotate, so that threaded sleeve 62 is driven to rotate synchronously through tooth ring 63, so that top cover 66 can descend smoothly, simultaneously, because the energy compensation structure in shell 3 adopts different thicknesses of polyethylene plus lead to improve the response to high-energy neutrons, so that it has greater detection range relative to traditional neutron dose rate appearance,

[0032] Sealing component 5 includes sealing ring 51, extrusion ring 52 is slidably connected through the groove being set up in sealing ring 51, push rod 56 is slidably connected through the groove being set up in sealing ring 51, the one end fixedly connected with pressing plate 53 of push rod 56, push rod 56 and pressing plate 53 are equipped with a plurality of and have certain interval between them, the other end of push rod 56 and extrusion ring 52 contact and the contact surface is inclined surface, the top fixedly connected with fixed strip 55 of push rod 56, the one side fixedly connected with spring 54 of fixed strip 55, the other end of spring 54 and sealing ring 51 are fixedly connected, the top of sealing ring 51 and top cover 66 are fixedly connected, the surface of sealing ring 51 has certain tenacity.

[0033] The specific implementation is that when sealing, the top cover 66 drives the sealing ring 51 to descend, and the sealing ring 51 is pressed into the sealing groove 4, and the sealing ring 51 is deformed due to the flexibility of the surface of the sealing ring 51, so that the sealing ring 51 drives the pressing ring 52 to move downward when being pressed by the top cover 66, the pressing ring 52 presses the push rod 56, the push rod 56 moves due to the inclined surface of the contact surface between the pressing ring 52 and the push rod 56, the spring 54 is pressed by the fixed strip 55, the push rod 56 drives the pressing plate 53 to move and press the two sides of the sealing ring 51, and the sealing ring 51 is more closely attached to the sealing groove 4.

[0034] The working principle is that when installing, the detection module 67 is placed into the placing groove 1, the threaded sleeve 62 is corresponded to the position of the threaded column 2, the threaded column 2 is inserted into the threaded sleeve 62, the handle 64 drives the gear ring 63 to rotate, the gear ring 63 drives the gear 61 to rotate and the threaded sleeve 62 to rotate, the threaded sleeve 62 is synchronously rotated by the gear ring 63, the top cover 66 can stably descend, the top cover 66 drives the sealing ring 51 to descend into the sealing groove 4 and press the sealing ring 51, the sealing ring 51 is deformed due to the flexibility of the surface of the sealing ring 51, the sealing ring 51 drives the pressing ring 52 to move downward when being pressed by the top cover 66, the pressing ring 52 presses the push rod 56, the push rod 56 moves due to the inclined surface of the contact surface between the pressing ring 52 and the push rod 56, the spring 54 is pressed by the fixed strip 55, the push rod 56 drives the pressing plate 53 to move and press the two sides of the sealing ring 51, and the sealing ring 51 is more closely attached to the sealing groove 4.

[0035] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A neutron dose rate meter with a wide energy response, comprising a housing (3), characterized in that: The top of the outer shell (3) is fixedly connected to a threaded post (2), the inner part of the outer shell (3) is provided with a placement groove (1), the top of the outer shell (3) is provided with a sealing groove (4), the top of the outer shell (3) is provided with a fixing component (6), and a sealing component (5) is provided between the fixing component (6) and the outer shell (3). The fixing component (6) includes a top cover (66), a detection module (67) is fixedly connected inside the top cover (66), a threaded sleeve (62) is rotatably connected to the top cover (66) through a through hole, a gear (61) is fixedly connected to the top of the threaded sleeve (62), a toothed ring (63) is provided on the top surface of the top cover (66), a handle (64) is fixedly connected to the outer wall of the toothed ring (63), and a limit frame (65) is fixedly connected to the top surface of the top cover (66).

2. The neutron dose rate meter with a wide energy response according to claim 1, characterized in that, The threaded sleeve (62) is threadedly connected to the threaded column (2) through the thread inside it, and the gear (61) meshes with the gear ring (63).

3. A neutron dose rate meter with a wide energy response according to claim 2, characterized in that, The toothed ring (63) is located in the slot opened in the limiting frame (65) and is slidably connected to the limiting frame (65), and the detection module (67) is located in the placement slot (1).

4. A neutron dose rate meter with a wide energy response according to claim 3, characterized in that, The sealing assembly (5) includes a sealing ring (51), which is slidably connected to a compression ring (52) through a groove therein, and a push rod (56) is slidably connected to the sealing ring (51) through a groove therein.

5. A neutron dose rate meter with a wide energy response according to claim 4, characterized in that, One end of the push rod (56) is fixedly connected to a pressure plate (53). Both the push rod (56) and the pressure plate (53) are provided with a number of plates and there is a certain interval between them. The other end of the push rod (56) is in contact with the extrusion ring (52) and the contact surface is an inclined surface. The top surface of the push rod (56) is fixedly connected to a fixing strip (55).

6. A neutron dose rate meter with a wide energy response according to claim 5, characterized in that, A spring (54) is fixedly connected to one side of the fixing strip (55), and the other end of the spring (54) is fixedly connected to the sealing ring (51). The top end of the sealing ring (51) is fixedly connected to the top cover (66), and the surface of the sealing ring (51) has a certain toughness.

Images