CN205643200U - Fixing device and security installations - Google Patents

Abstract

The utility model provides a fixing device and security inspection equipment. The fixing device includes a bottom plate and a box body, the size and shape of the bottom plate and the box body are matched, and they are arranged to be matched with each other. A detection channel is arranged on the integrated bottom plate and the box body, and the detection channel is used to allow the object to be inspected to pass through. , the integrated bottom plate and the first end of the box body are used to install a fixed radiation source, the integrated bottom plate and the second end of the box body are used to install a fixed detector, the first end and the second end are opposite and Located on opposite sides of the detection channel. The fixing device realizes the installation and fixing of the radiation source and the detector in the security inspection equipment by combining the bottom plate and the box body. The structure of the fixing device is simpler and more compact, and the weight is lighter, thereby improving the reliability of detection; At the same time, the dimensional accuracy of the fixing device is high, so that the installation accuracy of the radiation source and the detector installed and fixed on the fixing device is relatively high, thereby improving the detection quality of the security inspection equipment.

Description

A fixing device and security inspection equipment

technical field

The utility model relates to the technical field of security inspection, in particular to a fixing device and security inspection equipment.

Background technique

Security inspection equipment mainly serves occasions that have security requirements for luggage items. The CT imaging system of security inspection equipment is the key, and the CT imaging system needs high-speed rotation to scan luggage items. The fixed structure supporting the CT imaging system becomes a key component, and core electrical components such as X-ray machines, collimators, and detectors need to be installed on the fixed structure. Therefore, a simple, compact, lightweight, durable and reliable fixing structure becomes the key to affect the imaging of the device.

At present, the fixed structure of the CT imaging system of most security inspection equipment is a solid structure, and the mounting seat of the CT imaging system is set on the fixed structure by welding. The fixed structure of the solid structure is heavy, and the reliability is not high when rotating at high speed. The welding process of the fixed structure connected to the mounting seat of the CT imaging system is complicated, and the quality of the weld seam is not easy to guarantee, especially under the condition of high-speed rotation, the reliability of the welded parts is poor. in addition. At present, the fixed structure of the CT imaging system has low dimensional accuracy. After the core electrical components such as X-ray machines, collimators, and detectors are installed on the fixed structure, it is difficult to ensure the installation accuracy, which will directly affect the imaging of the CT imaging system. quality.

Utility model content

The utility model aims at the above-mentioned technical problems existing in the prior art, and provides a fixing device and security inspection equipment. The structure of the fixture is simpler and more compact, the weight is lighter, and the reliability of detection is improved; at the same time, the dimensional accuracy of the fixture is high, so that the installation accuracy of the radiation source and the detector fixed on the fixture is relatively high. High, thereby improving the detection quality of security inspection equipment.

The utility model provides a fixing device for installing and fixing a radiation source and a detector in security inspection equipment, including a bottom plate and a box body, the size and shape of the bottom plate and the box body are matched, and they are arranged mutually. A detection channel is provided on the integrated bottom plate and the box body, the detection channel is used for passing the object to be inspected, and the first end of the integrated bottom plate and the box body is used for Install and fix the ray source, the integrated bottom plate and the second end of the box are used to install and fix the detector, the first end and the second end are opposite and located at the detection opposite sides of the channel.

Preferably, the shape of the bottom plate is fan-shaped; the shape of the box body is fan-shaped; the box body and the bottom plate are correspondingly buckled and connected to form a fan-shaped box;

The box body includes an arc-shaped wall opposite to the apex of the fan-shaped box, a first side wall opposite to the bottom plate, and a second side wall and a second side wall respectively connected to opposite sides of the first side wall. Three side walls; the detection channel is a through hole opened on the fan-shaped box, and the through hole passes through the bottom plate and the first side wall of the box body;

The ray source is used to be arranged at the apex position of the fan-shaped box, and an arc-shaped boss is arranged on the inner side of the bottom plate facing the box body, and the arc-shaped boss and the arc shape of the box body The walls correspond to each other, and the arc-shaped boss and the arc-shaped wall are spaced apart to form a gap, and the opposite ends of the detector are respectively used to be fixed on the arc-shaped wall and the arc-shaped boss , the radiation emitted by the radiation source is in the fan-shaped box, and the radiation emitted by the radiation source can be emitted to the detector through the detection channel.

Preferably, the length between the two opposite ends of the detector respectively used for fixing on the arc-shaped wall and the arc-shaped boss is equal to the bottom plate and the first side wall of the box body spacing between.

Preferably, the box body further includes a fourth side wall opposite to the apex of the fan-shaped box, the fourth side wall and the arc-shaped wall are respectively located on opposite sides of the detection channel, and the fourth side wall The side walls are respectively connected to the first side wall, the second side wall and the third side wall; the fourth side wall is used to fix the radiation source;

The fourth side wall is connected with the second side wall to form a first abutting edge, the fourth side wall is connected with the third side wall to form a second abutting edge, and the arc-shaped wall and the second side wall are connected to form a second abutting edge. The side walls are connected to form a third butt edge, and the arc wall is connected to the third side wall to form a fourth butt edge; the first butt edge, the second butt edge, the third butt edge and the At least one of the fourth butt-joint sides is positioned and connected to the bottom plate through a first positioning member.

Preferably, the ray source includes a first base and an X-ray machine, the X-ray machine is fixed on the first base for emitting detection rays; the first base is movably arranged on the fourth side wall On, the first base is provided with a positioning block;

A first clamping plate is provided on the first butt joint edge or the second butt joint edge, the first clamp plate corresponds to the position of the positioning block, and the first clamp plate and the positioning block pass through the first clamping plate An adjusting member is movably connected, and the first adjusting member can adjust the distance between the first base and the first clamping plate, so as to adjust the X-ray machine and the first abutting edge or the second Spacing between butt edges.

Preferably, the ray source includes a first base, a second base and an X-ray machine, the first base is arranged on the fourth side wall, the X-ray machine is fixed on the second base, and for emitting detection rays; the second base can move relative to the first base;

The fourth side wall is connected with the first side wall to form a fifth abutting edge; a second clamping plate is provided on one end of the second base corresponding to the fifth abutting edge, and the first base is provided with a There is an adjustment hole, the position of the second clamping plate corresponds to the position of the adjustment hole, the second clamping plate and the adjustment hole are movably connected through a second adjustment member, and the second adjustment member can adjust the first The relative position between the second base and the first base is used to adjust the distance between the X-ray machine and the fifth abutting edge.

Preferably, a strip-shaped hole is also opened on the first base, and the length direction of the strip-shaped hole is along the moving direction of the first base relative to the first clamping plate;

A second positioning piece is provided on the fourth side wall, and the second positioning piece is used to pass through the strip-shaped hole, and when the first base moves relative to the position of the first clamping plate, the second positioning piece The strip-shaped hole can move relative to the position of the second positioning member.

Preferably, it also includes a plurality of supports,

A plurality of the support members are supported between the first side wall of the box body and the bottom plate, and the plurality of support members are arranged along the extending direction of the arc-shaped wall of the box body.

Preferably, one side of the second side wall, the third side wall and the fourth side wall of the box body are respectively attached to the corresponding side of the bottom plate, and through the first connection connection;

Ends of the supporting member that are in contact with the first side wall of the box body and the bottom plate are respectively connected to the box body and the bottom plate through the first connecting piece.

Preferably, first reinforcing ribs are provided on the outer surface of the bottom plate facing away from the box body.

Preferably, the first reinforcing ribs are distributed in a grid pattern, and the first reinforcing ribs and the bottom plate are made of the same material and have an integral structure.

Preferably, second reinforcing ribs are provided on outer surfaces of the first side wall, the second side wall and the third side wall of the box body facing away from the bottom plate.

Preferably, the second reinforcing ribs are distributed in a grid pattern, and the second reinforcing ribs and the box body are made of the same material and have an integral structure.

Preferably, a plurality of first grooves are provided on the edge end surface of the arc-shaped wall of the box body, and the first grooves and the arc-shaped wall of the box body are made of the same material and have an integral structure.

Preferably, a plurality of second grooves are provided on the outer surface of the bottom plate facing away from the box body, and the plurality of second grooves are respectively located at the apex of the fan-shaped bottom plate and on the side of the arc edge .

Preferably, a plurality of third grooves are formed on the outer surface of the first side wall of the box body facing away from the bottom plate, and the plurality of third grooves are respectively located on the first side of the sector At the apex positions of the walls and on the sides of the curved edges.

Preferably, a shielding sheet is provided on the inner side of the bottom plate facing the box body; the first side wall, the second side wall, the third side wall and the first side wall of the box body The inner side of the four side walls facing the bottom plate is provided with a shielding sheet; the shielding sheet covers the entire inner side of the bottom plate and the first side wall, the second side wall, and the box body. The entire inner surface of the third side wall and the fourth side wall is used to prevent the radiation emitted by the radiation source from penetrating the bottom plate and the outside of the box.

Preferably, the arc-shaped edge side of the bottom plate extends outward along the plane where the bottom plate is located to form a first extension, and the arc-shaped edge side of the first side wall of the box body extends along the plane where the first side wall is located. The plane extends outward to form a second extension, and the first extension and the second extension correspond to each other; the space formed between the first extension and the second extension is used for arranging the circuit board, and the circuit board is electrically connected to the detector.

Preferably, a cover plate is also included, and the cover plate is used to cover the outside of the arc-shaped surface of the fan-shaped box, so that the arc-shaped boss, the arc-shaped wall, the detector and the circuit The plate cover is closed in the fan-shaped box;

A shielding sheet is provided on the inner surface of the cover plate facing the inside of the sector box to prevent the radiation emitted by the radiation source from penetrating the cover plate.

Preferably, the ray source further includes a collimator, the collimator is arranged on the fourth side wall and is correspondingly located below the X-ray machine, and is used to limit the X-ray machine to emit rays. range of exposure;

A light-transmitting hole is opened on the fourth side wall, and the shape and size of the light-transmitting hole are the same as the irradiation range of the rays limited by the collimator.

Preferably, the collimator is positioned on the fourth side wall through a third positioning member, and is connected and fixed with the fourth side wall through a second connecting member.

Preferably, both the bottom plate and the box body are aluminum castings.

The utility model also provides a security inspection device, which includes the above-mentioned fixing device.

Beneficial effects of the utility model: the fixing device provided by the utility model realizes the installation and fixing of the radiation source and the detector in the security inspection equipment by combining the bottom plate and the box body into one body, and the structure of the fixing device is simpler and more It is compact and lighter in weight, which improves the reliability of security inspection equipment detection; at the same time, the dimensional accuracy of the fixture is high, so that the installation accuracy of the radiation source and detector fixed on the fixture is also relatively high, thereby improving The inspection quality of the security inspection equipment has been improved.

The security inspection equipment provided by the utility model adopts the above-mentioned fixing device, which not only makes the structure of the security inspection equipment simpler and more compact, but also has a lighter weight, which improves the reliability of the detection of the security inspection equipment; and makes the installation accuracy of the security inspection equipment relatively high. , improving the detection quality of the security inspection equipment.

Description of drawings

Fig. 1 is a structural schematic view of the fixing device in Embodiment 1 of the present invention viewed from the side of the box body;

Fig. 2 is a structural schematic view of the fixing device in Embodiment 1 of the present invention viewed from the side of the bottom plate;

Fig. 3 is a schematic structural view of the outside of the box body of the fixing device in Fig. 1;

Fig. 4 is a schematic structural view of the inner side of the box body of the fixing device in Fig. 1;

Fig. 5 is a top view of the structure of the fixing device in Fig. 1 for fixing the radiation source;

Fig. 6 is a bottom view of the structure of the fixing device in Fig. 1 for fixing the radiation source;

Fig. 7 is a schematic structural diagram of the collimator in the ray source in Fig. 1;

Fig. 8 is a schematic structural view of the outside of the bottom plate of the fixing device in Fig. 1;

FIG. 9 is a schematic structural view of the inner side of the bottom plate of the fixing device in FIG. 1 .

The reference signs therein explain:

1. Bottom plate; 11. Arc-shaped boss; 12. Rib; 13. Second groove; 14. First extension; 100. Gap; 2. Box body; 21. Arc-shaped wall; 22. First side 23. The second side wall; 24. The third side wall; 29. The fourth side wall; 290. The light hole; 25. The second rib; 26. The first groove; 27. The third groove; 28. The second extension; 200. The first clamping plate; 201. The first butt edge; 202. The second butt edge; 203. The third butt edge; 204. The fourth butt edge; 205. The fifth butt edge; 206 .The first adjustment piece; 207. The second clamping plate; 208. The second adjustment piece; 3. The detection channel; 4. The radiation source; 41. The first base; 410. The strip hole; 411. The positioning block; 42.X 43. Second base; 44. Collimator; 440. First positioning hole; 441. First connection hole; 5. Detector; 6. Support member; 7. Cover plate.

detailed description

In order to enable those skilled in the art to better understand the technical solution of the utility model, a fixing device and security inspection equipment provided by the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Example 1:

This embodiment provides a fixing device for installing and fixing the radiation source and detector in the security inspection equipment, as shown in Figure 1 and Figure 2, including a bottom plate 1 and a box body 2, the size and shape of the bottom plate 1 and the box body 2 are similar Adapted to each other and set up, the integrated bottom plate 1 and box body 2 are provided with a detection channel 3, the detection channel 3 is used to pass the object to be inspected, and the integrated bottom plate 1 and box body 2 The first end is used to install the fixed radiation source 4, and the second end of the integrated bottom plate 1 and box body 2 is used to install the fixed detector 5. The first end and the second end are opposite and located at the opposite ends of the detection channel 3. side.

By combining the bottom plate 1 and the box body 2 into one, the installation and fixation of the radiation source 4 and the detector 5 in the security inspection equipment are realized, and the structure of the fixing device is simpler and more compact. A space is formed inside the body 2, so the weight of the fixing device is greatly reduced.

In this embodiment, the shape of the bottom plate 1 is fan-shaped; the shape of the box body 2 is fan-shaped; the box body 2 and the bottom plate 1 are correspondingly buckled and connected to form a fan-shaped box. As shown in Figures 3 and 4, the box body 2 includes an arc-shaped wall 21 opposite to the apex of the fan-shaped box, a first side wall 22 opposite to the bottom plate 1, and two sides respectively connected to the opposite sides of the first side wall 22. The second side wall 23 and the third side wall 24; as shown in FIGS. The ray source 4 is used to be arranged at the apex position of the fan-shaped box. The bottom plate 1 is provided with an arc-shaped boss 11 on the inner side facing the box body 2. The arc-shaped boss 11 corresponds to the arc-shaped wall 21 of the box body 2, and The arc-shaped boss 11 and the arc-shaped wall 21 are spaced apart to form a gap 100, and the opposite ends of the detector 5 are respectively used to be fixed on the arc-shaped wall 21 and the arc-shaped boss 11, and the radiation emitted by the radiation source 4 is in the shape of a fan Inside the box, and the radiation emitted by the radiation source 4 can be emitted to the detector 5 through the detection channel 3 . The setting of the slit 100 can ensure that the radiation emitted by the radiation source 4 located at the apex of the fan-shaped box can be emitted to the detector 5 after passing through the detection channel 3 and the object to be inspected passing through the detection channel 3, so that the detection The device 5 can receive the radiation passing through the object to be inspected, thereby realizing the safe detection of the object to be inspected.

Since the radiation emitted by the radiation source 4 is usually distributed in a fan shape, installing and fixing the radiation source 4 and the detector 5 on the fan-shaped box provided in this embodiment can make more effective use of the radiation emitted by the radiation source 4, and at the same time Improve the efficiency and accuracy of the detection of substances to be tested. In addition, the fan-shaped box is simple and compact in structure and light in weight, which greatly facilitates the fixed installation of the radiation source 4 and the detector 5 .

In this embodiment, as shown in FIG. 1 , the length between the two opposite ends of the detector 5 respectively used for fixing on the arc-shaped wall 21 and the arc-shaped boss 11 is equal to the first side of the bottom plate 1 and the box body 2 The spacing between the walls 22. Arranged in this way, the setting area of the shielding sheet (such as shielding lead) used to prevent the radiation emitted by the radiation source 4 from passing through the fan-shaped box on the inner wall of the fan-shaped box is reduced, thereby reducing the overall weight of the fixing device, making the fixing device in It is more portable and flexible during the rotation detection process.

In this embodiment, as shown in FIGS. 3 and 4 , the box body 2 also includes a fourth side wall 29 opposite to the apex of the fan-shaped box. The fourth side wall 29 is respectively connected to the first side wall 22 , the second side wall 23 and the third side wall 24 ; the fourth side wall 29 is used to fix the radiation source 4 . The fourth side wall 29 is connected with the second side wall 23 to form a first butt edge 201, the fourth side wall 29 is connected with the third side wall 24 to form a second butt edge 202, and the arc wall 21 is connected with the second side wall 23 to form The third butt edge 203, the arc wall 21 is connected with the third side wall 24 to form the fourth butt edge 204; One butt edge is positioned and connected to the bottom plate 1 through the first positioning member.

Preferably, the first abutting edge 201 , the second abutting edge 202 , the third abutting edge 203 and the fourth abutting edge 204 are all positioned and connected to the base plate 1 through a first positioning member, respectively. Such setting can make the alignment between the bottom plate 1 and the box body 2 more accurate, so that the corresponding fastening between the bottom plate 1 and the box body 2 is more accurate, and the fan-shaped box formed by the corresponding fastening between the bottom plate 1 and the box body 2 has higher dimensional accuracy , thereby ensuring the detection quality of the security inspection equipment using the fixing device.

In this embodiment, the first positioning member adopts positioning pins, and the positions corresponding to the respective butt edges on the first butt edge 201, the second butt edge 202, the third butt edge 203, the fourth butt edge 204 and the base plate 1 are all A positioning hole is provided, and the positioning pin is inserted into the positioning hole, so as to realize the alignment of the corresponding fastened bottom plate 1 and the box body 2 .

In this embodiment, as shown in Figures 5 and 6, the radiation source 4 includes a first base 41 and an X-ray machine 42, and the X-ray machine 42 is fixed on the first base 41 for emitting detection rays; the first base 41 It is movably arranged on the fourth side wall 29 , and a positioning block 411 is arranged on the first base 41 . The first clamping plate 200 is arranged on the first butt joint edge 201, and the position of the first clamping plate 200 corresponds to the position of the positioning block 411. 206 can adjust the distance between the first base 41 and the first pallet 200 , so as to adjust the distance between the X-ray machine 42 and the first abutting edge 201 .

Wherein, the first adjusting member 206 adopts bolts, the first clamping plate 200 and the first adjusting member 206 are connected through threads, the positioning block 411 is connected with the first adjusting member 206 through threads, and the screw thread on the adjusting bolt and the positioning block 411 is engaged The number of teeth, so as to push the first base 41 to move away from or close to the first clamping plate 200, that is, to push the first base 41 to move away from or close to the first butt edge 201, thereby realizing the X-ray machine 42 in the left and right direction The position adjustment on the X-ray machine 42 makes the installation position of the X-ray machine 42 more accurate, and improves the imaging quality of the X-ray machine 42 in the security check process.

It should be noted that the first clamping plate 200 can also be arranged on the second abutting edge 202 , which can also realize the position adjustment of the X-ray machine 42 in the left and right directions.

In this embodiment, the radiation source 4 also includes a second base 43, the first base 41 is arranged on the fourth side wall 29, and the X-ray machine 42 is fixed on the second base 43 for emitting detection rays; the second base 43 Can move relative to the first base 41 . The fourth side wall 29 is connected with the first side wall 22 to form a fifth butt joint 205; a second clamping plate 207 is provided on one end of the second base 43 corresponding to the fifth butt joint 205, and an adjustment hole is provided on the first base 41 , the second clamping plate 207 corresponds to the position of the adjustment hole, the second clamping plate 207 and the adjustment hole are flexibly connected through the second adjustment member 208, and the second adjustment member 208 can adjust the distance between the second base 43 and the first base 41 The relative position is used to adjust the distance between the X-ray machine 42 and the fifth abutting edge 205 .

Wherein, the second adjusting member 208 adopts bolts, the second clamping plate 207 and the second adjusting member 208 are connected by threads, the adjusting hole and the second adjusting member 208 are connected by threads, and by adjusting the number of meshing teeth of the thread on the bolt and the adjusting hole, Thereby pushing the second base 43 to move away from or close to the direction of the second clamping plate 207, that is, to push the second base 43 to move away from or close to the direction of the fifth abutting edge 205, thereby realizing the front and back movement of the X-ray machine 42 The position adjustment makes the installation position of the X-ray machine 42 more precise, and improves the imaging quality of the X-ray machine 42 during the security inspection process.

In this embodiment, the first base 41 is also provided with a strip-shaped hole 410, and the length direction of the strip-shaped hole 410 is along the moving direction of the first base 41 relative to the first clamping plate 200; the fourth side wall 29 is provided with a second As for the positioning part, the second positioning part is used to pass through the bar-shaped hole 410 , and when the first base 41 moves relative to the position of the first clamping plate 200 , the bar-shaped hole 410 can move relative to the position of the second positioning part. Wherein, the second positioning member adopts positioning pins, and the setting of the bar-shaped hole 410 can make the first base 41 not deviate from its left and right adjustment direction when moving away from or close to the first butt edge 201, so that the X-ray machine 42 will not deviate from the position adjustment direction during the left and right position adjustment process, which ensures the accurate position adjustment of the X-ray machine 42 in the left and right directions, and improves its imaging quality in the security inspection process.

In addition, it should be noted that when the second base 43 is adjusted relative to the first base 41, that is, in the process of adjusting the position of the X-ray machine 42 forward and backward, since the position of the first base 41 in contact with the second base 43 is provided with a Guide rail, the second base 43 can only move along the extension direction of the guide rail during the position adjustment process relative to the first base 41, and the extension direction of the guide rail is just along the direction that the second base 43 is away from or close to the second clamping plate 207, therefore, The second base 43 will not deviate from the position adjustment direction forward and backward, so that the X-ray machine 42 will not deviate from the position adjustment direction during the position adjustment process, which ensures that the X-ray machine 42 can be adjusted accurately in the front-back direction, and improves its performance. Imaging quality during security checks.

In this embodiment, as shown in FIG. 3 , FIG. 4 and FIG. 7 , the ray source 4 further includes a collimator 44, the collimator 44 is used to be arranged on the fourth side wall 29, and is correspondingly located in the X-ray machine 42. The lower part is used to limit the irradiation range of the rays emitted by the X-ray machine 42 ; the fourth side wall 29 is provided with a light-transmitting hole 290 whose shape and size are the same as the irradiation range of the rays limited by the collimator 44 . The rays emitted by the X-ray machine 42 are controlled by the collimator 44 to pass through the light-transmitting hole 290 on the fourth side wall 29, and are irradiated in the range of the fan-shaped box, which improves the utilization rate of the light, thereby improving the performance of the X-ray machine 42 The imaging quality in the security inspection process improves the accuracy of the safety inspection of the object to be inspected.

In this embodiment, the collimator 44 is positioned on the fourth side wall 29 through the third positioning member, and is connected and fixed to the fourth side wall 29 through the second connecting member. Wherein, the collimator 44 is provided with a first positioning hole 440, and the fourth side wall 29 is provided with a second vacancy hole at a position corresponding to the first positioning hole 440. One positioning hole 440 and the second positioning hole to position the collimator 44 on the fourth side wall 29 . In addition, the collimator 44 is also provided with a first connecting hole 441, and the fourth side wall 29 is also provided with a second connecting hole at a position corresponding to the first connecting hole 441. The second connecting piece adopts connecting bolts, and the connecting bolts penetrate The collimator 44 is connected and fixed to the fourth side wall 29 in the first connection hole 441 and the second connection hole. The setting of the third positioning member and the second connecting member can make the positioning of the collimator 44 on the fourth side wall 29 more accurate, and the connection with the fourth side wall 29 is also more firm, thereby improving the X-ray machine 42 in the fourth side wall 29. The imaging quality in the security inspection process improves the accuracy of the safety inspection of the object to be inspected.

In this embodiment, the fixing device further includes a plurality of support members 6, and the plurality of support members 6 are supported between the first side wall 22 of the box body 2 and the bottom plate 1, and the plurality of support members 6 are arranged along the arc shape of the box body 2. The extension directions of the walls 21 are arranged. The setting of the support member 6 can improve the strength and rigidity of the sector box. Since during the detection process of the object to be inspected, the fan-shaped box will rotate at a high speed around the center of the detection channel, thereby realizing omni-directional ray scanning of the object to be inspected passing through the detection channel 3, so the setting of the support member 6 can make the fan-shaped box It is not easy to deform during high-speed rotation, thus ensuring the accuracy of the detection of the object to be detected.

It should be noted that a plurality of support members 6 can also be connected as a whole, that is, a plurality of support members 6 are connected together to form a support frame, which can also support the bottom plate 1 and the first side wall 22 of the box body 2 .

In this embodiment, one side of the second side wall 23, the third side wall 24, and the fourth side wall 29 of the box body 2 respectively fits with the corresponding side of the bottom plate 1, and is connected by a first connecting piece; Ends of the supporting member 6 that are in contact with the first side wall 22 of the box body 2 and the bottom plate 1 are respectively connected to the box body 2 and the bottom plate 1 through the first connecting piece.

Wherein, one side of the second side wall 23 and the third side wall 24 of the box body 2 and the corresponding side of the bottom plate 1 are all provided with through holes, and the first connecting piece adopts screws or bolts, and by passing the screws or bolts In the through hole, the connection and fixation between the box body 2 and the bottom plate 1 are realized. The support member 6 adopts a support rod, and the two ends of the support rod are pushed against the first side wall 22 and the bottom plate 1 respectively, and the two ends of the support rod are respectively provided with through holes. A through hole is also opened at the contact position, and the connection and fixation between the support rod, the first side wall 22 and the bottom plate 1 can be realized by passing a screw or a bolt into the through hole. The setting of the first connecting piece can enhance the solidity of the connection between the bottom plate 1 and the box body 2, so that the combined bottom plate 1 and box body 2 are not easy to separate during the high-speed rotation of the fan-shaped box, thereby ensuring the fastening Reliable fixation of the device to the radiation source 4 and the detector 5.

In this embodiment, as shown in FIG. 8 and FIG. 9 , a first reinforcing rib 12 is provided on the outer surface of the bottom plate 1 facing away from the box body 2 . The first reinforcing ribs 12 can strengthen the strength and rigidity of the bottom plate 1, so that the bottom plate 1 is not easily deformed or damaged during the high-speed rotation of the sector box, thereby improving the detection accuracy of the object to be detected.

Wherein, the first reinforcing ribs 12 are distributed in a grid shape, and the first reinforcing ribs 12 and the bottom plate 1 are made of the same material and have an integral structure. Such arrangement enables the first reinforcing ribs 12 to enhance the overall strength and rigidity of the bottom plate 1 , so that the bottom plate 1 is not easily deformed or damaged.

In this embodiment, as shown in FIG. 3 and FIG. 4 , the outer surfaces of the first side wall 22 , the second side wall 23 and the third side wall 24 of the box body 2 facing away from the bottom plate 1 are provided with second reinforcing ribs. 25. The second reinforcing rib 25 can strengthen the strength and the rigidity of the first side wall 22, the second side wall 23 and the third side wall 24 of the box body 2, so that each side wall of the box body 2 is not in the high-speed rotation process of the fan-shaped box. It is easy to be deformed or damaged, so as to ensure the accuracy of the detection of the object to be inspected.

Wherein, the second reinforcing ribs 25 are distributed in a grid shape, and the second reinforcing ribs 25 and the box body 2 are made of the same material and have an integral structure. Such arrangement enables the second reinforcing rib 25 to enhance the overall strength and rigidity of each side wall of the box body 2, so that the box body 2 is not easily deformed or damaged.

In this embodiment, a plurality of first grooves 26 are provided on the edge surface of the arc-shaped wall 21 of the box body 2 , and the first grooves 26 and the arc-shaped wall 21 of the box body 2 are made of the same material and have an integral structure. The setting of the first groove 26 can increase the surface area of the arc-shaped wall 21 , thereby allowing the heat generated by the detector 5 to be discharged faster, thereby ensuring the normal operation of the detector 5 .

In this embodiment, a plurality of second grooves 13 are provided on the outer surface of the bottom plate 1 facing away from the box body 2 , and the plurality of second grooves 13 are respectively located at the apex and the arc edge of the fan-shaped bottom plate 1 . The arrangement of multiple second grooves 13 can greatly reduce the weight of the bottom plate 1, making the bottom plate 1 lighter when rotating at high speed, and at the same time reduce or avoid the low reliability caused by the heavy weight of the bottom plate 1 when rotating at high speed. problem, so that the detection of the object to be detected is more accurate.

In this embodiment, a plurality of third grooves 27 are opened on the outer surface of the first side wall 22 of the box body 2 facing away from the bottom plate 1, and the plurality of third grooves 27 are respectively located on the sides of the fan-shaped first side wall 22. At the vertex position and at the edge side of the arc. The setting of multiple third grooves 27 can greatly reduce the weight of the box body 2, making the box body 2 lighter when rotating at high speed, and can also reduce or avoid the reliability of the box body 2 caused by too much weight when rotating at high speed. The problem of low sex is not high, so that the detection of the object to be detected is more accurate.

In this embodiment, a shielding sheet is provided on the inner side of the bottom plate 1 facing the box body 2; The inner side of the bottom plate 1 is provided with a shielding sheet; the shielding sheet covers the entire inner side of the bottom plate 1 and the first side wall 22, the second side wall 23, the third side wall 24 and the fourth side wall 29 of the box body 2. The entire inner surface is used to prevent the radiation emitted by the radiation source 4 from penetrating the bottom plate 1 and the box body 2 .

Wherein, the shielding sheet adopts a lead plate, and the rays emitted by the radiation source 4 cannot pass through the lead plate, so that the radiation emitted by the radiation source 4 can be well shielded. It should be noted that there is no shielding sheet on the side wall of the detection channel 3 opened in the fan-shaped box, because the radiation emitted by the radiation source 4 needs to pass through the side wall of the detection channel 3 to irradiate the object to be inspected, so as to realize the inspection. Object scanning detection.

In this embodiment, the arc-shaped edge side of the bottom plate 1 extends outward along the plane where the bottom plate 1 is located to form the first extension 14 , and the arc-shaped edge side of the first side wall 22 of the box body 2 extends along the plane where the first side wall 22 is located. The outer extension forms the second extension 28, and the first extension 14 and the second extension 28 are corresponding in position; the space formed between the first extension 14 and the second extension 28 is used to place the circuit board, and the circuit board is connected to the second extension 28. The detector 5 is electrically connected. The detector 5 can convert the received radiation signal into an electrical signal and transmit it to the circuit board, and the circuit board transmits the electrical signal to the imaging device. Scanning imaging detection.

In this embodiment, the fixing device also includes a cover plate 7, and the cover plate 7 is used to cover the outside of the arc-shaped surface of the fan-shaped box, so as to cover the arc-shaped boss 11, the arc-shaped wall 21, the detector 5 and the circuit board. In the fan-shaped box; the inner surface of the cover plate 7 facing the inside of the fan-shaped box is provided with a shielding sheet, which is used to prevent the radiation emitted by the radiation source from penetrating the cover plate 7 . The setting of the cover plate 7 can prevent the radiation emitted by the radiation source 4 from leaking out from the gap 100 on the arc surface of the fan-shaped box, thereby preventing the radiation emitted by the radiation source 4 from harming people in the external environment.

In this embodiment, both the bottom plate 1 and the box body 2 are aluminum castings. The aluminum material can make the fan-shaped box formed by the combination of the bottom plate 1 and the box body 2 lighter in weight, which makes the fan-shaped box rotating at high speed during the detection process more reliable. The structure of the parts is firm and not easily deformed, so that the structure of the sector box is stable during high-speed rotation, and the reliability of detection is improved.

Beneficial effects of Embodiment 1: The fixing device provided in Embodiment 1 realizes the installation and fixing of the radiation source and the detector in the security inspection equipment by combining the bottom plate and the box body, and the structure of the fixing device is simpler And compact, lighter in weight, thereby improving the reliability of security inspection equipment detection; at the same time, the dimensional accuracy of the fixing device is high, so that the installation accuracy of the radiation source and detector fixed on the fixing device is also relatively high, and then Improve the detection quality of security inspection equipment.

Example 2:

This embodiment provides a security inspection device, including the fixing device in Embodiment 1.

By adopting the fixing device in Embodiment 1, not only the structure of the security inspection equipment is simpler and more compact, the weight is lighter, and the reliability of the detection of the security inspection equipment is improved; the installation accuracy of the security inspection equipment is relatively high, and the security inspection equipment is improved. The testing quality of the equipment.

It can be understood that, the above embodiments are only exemplary embodiments adopted to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present utility model, and these variations and improvements are also regarded as the protection scope of the present utility model.

Claims (23)

1. a fixing device, for installing the radiographic source in fixing rays safety detection apparatus and spy Survey device, it is characterised in that include base plate and box body, described base plate and described box body size Suitable with shape, and mutual involutory setting, to the described base plate being integrated and described Being provided with sense channel on box body, described sense channel is used for making thing to be checked pass through, involutory The described base plate being integrated and the first end of described box body are for installing fixing described ray Source, to the second end of the described base plate being integrated and described box body for installing fixing institute Stating detector, described first end is relative with described second end and is positioned at described sense channel Opposite sides.

Fixing device the most according to claim 1, it is characterised in that the described end The shape of plate is sector；The shape of described box body is sector；Described box body and described base plate Correspondence is fastened and connected and forms fan-shaped box；

Described box body includes the arcwall relative with the summit of described fan-shaped box and the described end The first side wall that plate is relative and be connected to the opposite sides limit of described the first side wall The second sidewall and the 3rd sidewall；Described sense channel is to be opened on described fan-shaped box Through hole, the through described base plate of described through hole and the described the first side wall of described box body；

Described radiographic source is for being arranged on the vertex position of described fan-shaped box, described base surface Arc boss, described arc boss and described box it is provided with on medial surface to described box body The arcwall of body is corresponding, and spaced between described arc boss and described arcwall Form gap, the opposite end of described detector be respectively used to be fixed on described arcwall and On described arc boss, the ray that described radiographic source sends is in described fan-shaped box, and The radial energy that described radiographic source sends is launched to described detector through described sense channel.

Fixing device the most according to claim 2, it is characterised in that described spy Survey device be respectively used to be fixed on described arcwall relative with on described arc boss two Length between end is equal between described base plate and the described the first side wall of described box body Spacing.

Fixing device the most according to claim 2, it is characterised in that described box Body also includes fourth sidewall relative with the summit of described fan-shaped box, described 4th sidewall and Described arcwall lays respectively at the opposite sides of described sense channel, described 4th sidewall with Described the first side wall, described second sidewall and described 3rd sidewall connect respectively；Described Four sidewalls are used for fixing described radiographic source；

Described 4th sidewall is connected formation the first butt joint edge with described second sidewall, and described the Four sidewalls are connected formation the second butt joint edge with described 3rd sidewall, and described arcwall is with described Second sidewall connects formation the 3rd butt joint edge, and described arcwall is connected with described 3rd sidewall Form the 4th butt joint edge；Described first butt joint edge, described second butt joint edge, the described 3rd At least one butt joint edge in butt joint edge and described 4th butt joint edge passes through with described base plate First keeper is located by connecting.

Fixing device the most according to claim 4, it is characterised in that described in penetrate Line source includes that the first base and X-ray machine, described X-ray machine are fixed on described first base, For sending detection ray；Described first base is movably set on described 4th sidewall, It is provided with locating piece on described first base；

It is provided with the first clamp on described first butt joint edge or described second butt joint edge, described First clamp is corresponding with the position of described locating piece, described first clamp and described location Block is flexibly connected by the first regulating part, and described first regulating part can regulate described first end Spacing between seat and described first clamp is first right with described to regulate described X-ray machine Spacing between edge fit or described second butt joint edge.

Fixing device the most according to claim 4, it is characterised in that described in penetrate Line source includes that the first base, the second base and X-ray machine, described first base are arranged on institute Stating on the 4th sidewall, described X-ray machine is fixed on described second base, is used for sending inspection Survey ray；Described second base can move relative to described first base；

Described 4th sidewall is connected formation the 5th butt joint edge with described the first side wall；Described The second clamp it is provided with on one end of described 5th butt joint edge of correspondence of two bases, described Offering adjustment hole on one base, described second clamp is relative with the position of described adjustment hole Should, described second clamp is flexibly connected by the second regulating part with described adjustment hole, described Second regulating part can regulate the phase para-position between described second base with described first base Put, to regulate the spacing between described X-ray machine and described 5th butt joint edge.

Fixing device the most according to claim 5, it is characterised in that described Being further opened with bar hole on one base, the length direction of described bar hole is along described first end The moving direction of the most described first clamp of seat；

Being provided with the second keeper on described 4th sidewall, described second keeper is used for passing through It is through in described bar hole, and moves at the most described first card Board position of described first base Time dynamic, described bar hole can move relative to described second locating piece position.

Fixing device the most according to claim 4, it is characterised in that also include Multiple support members,

Multiple described supports support are in described the first side wall and the described end of described box body Between plate, and multiple described support member is along the bearing of trend row of the arcwall of described box body Cloth.

Fixing device the most according to claim 8, it is characterised in that described box One side of described second sidewall of body, described 3rd sidewall and described 4th sidewall is respectively Fit with the respective side of described base plate, and connected by the first connector；

The described the first side wall with described box body of described support member and described base plate are respectively The end contacted is by described first connector and described box body and described base plate difference Connect.

Fixing device the most according to claim 2, it is characterised in that described It is provided with the first reinforcement on the lateral surface of the most described box body of base plate.

11. fixing devices according to claim 10, it is characterised in that described First reinforcement distributes as net shape, and described first reinforcement uses phase with described base plate With material and be structure as a whole.

12. fixing devices according to claim 2, it is characterised in that described The described the first side wall of box body, described second sidewall and described 3rd sidewall described dorsad The second reinforcement it is provided with on the lateral surface of base plate.

13. fixing devices according to claim 12, it is characterised in that described Second reinforcement distributes as net shape, and described second reinforcement uses phase with described box body With material and be structure as a whole.

14. fixing devices according to claim 2, it is characterised in that described Multiple first groove, described first groove it is provided with on the edge end face of the arcwall of box body With the identical material of arcwall employing of described box body and being structure as a whole.

15. fixing devices according to claim 2, it is characterised in that described Multiple second groove is offered on the lateral surface of the most described box body of base plate, multiple described At the vertex position of the described base plate that the second groove lays respectively at sector and curved edge side.

16. fixing devices according to claim 2, it is characterised in that described Multiple is offered on the lateral surface of the most described base plate of the described the first side wall of box body Three grooves, multiple described 3rd grooves lay respectively at the summit of the described the first side wall of sector Position and curved edge side.

17. fixing devices according to claim 4, it is characterised in that described It is provided with shielding sheet on the medial surface towards described box body of base plate；Described box body described The first side wall, described second sidewall, described 3rd sidewall and described 4th sidewall towards Shielding sheet it is provided with on the medial surface of described base plate；Described shielding sheet is covered with described base plate Whole medial surface and the described the first side wall of described box body, described second sidewall, described Three sidewalls and the whole medial surface of described 4th sidewall, be used for preventing described radiographic source from sending Ray appear outside described base plate and described box body.

18. fixing devices according to claim 2, it is characterised in that described The curved edge side of base plate stretches out along described base plate place plane and forms the first extension Portion, the curved edge side of the described the first side wall of described box body is along described the first side wall place Plane stretches out and forms the second extension, and described first extension and described second extends Position, portion is corresponding；The sky formed between described first extension and described second extension It is used for disposing circuit board, described circuit board to electrically connect with described detector between.

19. fixing devices according to claim 18, it is characterised in that also wrap Including cover plate, described cover plate is for covering outside the arcwall face of described fan-shaped box, with by institute State arc boss, described arcwall, described detector and described circuit board cover and be combined in described In fan-shaped box；

Described cover plate on the medial surface in described fan-shaped box, be provided with shielding sheet, use Outside the ray preventing described radiographic source from sending appears described cover plate.

20. according to the fixing device described in claim 5 or 6, it is characterised in that Described radiographic source also includes that collimator, described collimator are used for being arranged on described 4th sidewall On, and correspondence is positioned at the lower section of described X-ray machine, is used for limiting described X-ray machine and sends and penetrate The range of exposures of line；

Offer loophole on described 4th sidewall, the shapes and sizes of described loophole with The range of exposures of the ray that described collimator limits is identical.

21. fixing devices according to claim 20, it is characterised in that described Collimator is positioned on described 4th sidewall by the 3rd keeper, and by the second connection Part is connected fixing with described 4th sidewall.

22. according to the fixing device described in claim 1-19 any one, its feature Being, described base plate and described box body are aluminium casting.

23. 1 kinds of rays safety detection apparatus, it is characterised in that include that claim 1-22 is any One described fixing device.