CN112730481B - Vehicle-mounted security inspection system - Google Patents
Vehicle-mounted security inspection system Download PDFInfo
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- CN112730481B CN112730481B CN202110336798.7A CN202110336798A CN112730481B CN 112730481 B CN112730481 B CN 112730481B CN 202110336798 A CN202110336798 A CN 202110336798A CN 112730481 B CN112730481 B CN 112730481B
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- 238000007689 inspection Methods 0.000 title abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 74
- 230000013011 mating Effects 0.000 claims description 9
- 239000003351 stiffener Substances 0.000 claims description 2
- 230000005855 radiation Effects 0.000 description 9
- 230000004308 accommodation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
- G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
- G01N23/10—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the material being confined in a container, e.g. in a luggage X-ray scanners
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/10—Different kinds of radiation or particles
- G01N2223/101—Different kinds of radiation or particles electromagnetic radiation
- G01N2223/1016—X-ray
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/30—Accessories, mechanical or electrical features
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Abstract
The vehicle-mounted security inspection system comprises a main body part; a horizontal frame integrally connected to the main body; and a scanning device, wherein the mounting frame comprises a pair of longitudinal support beams and a pair of transverse support frames. The scanning device includes: an upright frame, a slip ring rotatably mounted on the upright frame, and two sets of connecting mechanisms respectively mounted between upper and lower ends of both sides of the upright frame, the connecting mechanisms being configured to mount the upright frame on one of the longitudinal and transverse support beams such that at least a portion of the upright frame is below an upper surface of the horizontal frame. Since at least a part of the upright frame is lower than the upper surface of the horizontal frame, the conveying structure of the radiographic inspection apparatus for conveying the object to be inspected is also lowered accordingly, thereby facilitating the relevant personnel to place the object to be inspected on the conveying structure or to remove the inspected object from the conveying structure.
Description
Technical Field
The embodiment of the disclosure relates to a vehicle-mounted security check system, in particular to a movable vehicle-mounted security check system.
Background
On the basis of the need of public safety, a large public place such as a large exhibition, a temporary highway checkpoint, a side inspection port, a stadium and the like is subjected to non-intrusion inspection on an object such as a trunk or a package by using an on-board security inspection system frequently, and whether forbidden articles such as drugs and explosives exist in the object is inspected by using ray inspection equipment such as a ray inspection equipment installed on a vehicle. The object to be examined is usually passed through the examination space of a radiographic examination apparatus by means of a transport structure, and a radiation emitting device emits X-rays into a radiation passage to effect examination of the object.
In the existing vehicle-mounted security inspection system, the radiographic inspection apparatus is directly mounted in a box of the vehicle. Radiographic inspection equipment generally includes a housing and a scanning device (CT machine) mounted within the housing. The scanning device mainly includes: the apparatus includes a support frame, a slip ring rotatably mounted on the support frame, a radiation source mounted on the slip ring and adapted to emit X-rays, a detector array mounted on a side of the slip ring opposite the radiation source, and a transport structure passing through a substantially central location of the slip ring. Because the ray inspection equipment is directly arranged in the box body of the vehicle, the height of the scanning device from the ground is relatively high, and correspondingly, the height of the conveying structure from the ground is also relatively high, so that the related personnel can not conveniently place the target to be inspected on the conveying structure or take away the inspected target.
Disclosure of Invention
An object of the present disclosure is to solve at least one aspect of the above problems and disadvantages in the related art.
According to an embodiment of one aspect of the present disclosure, there is provided an in-vehicle security inspection system including a main body portion; a horizontal frame integrally connected to the main body; and a scanning device, wherein the mounting frame comprises a pair of longitudinal support beams and a pair of transverse support frames. The scanning device includes: an upright frame, a slip ring rotatably mounted on the upright frame, and two sets of connecting mechanisms respectively mounted between upper and lower ends of both sides of the upright frame, the connecting mechanisms being configured to mount the upright frame on one of the longitudinal and transverse support beams such that at least a portion of the upright frame is below an upper surface of the horizontal frame.
According to an embodiment of the present disclosure, each set of the connection mechanisms includes: a horizontal arm extending outwardly from an outer side of the upright frame and supported on the longitudinal or transverse support beam.
According to an embodiment of the present disclosure, each set of the connection mechanisms further comprises: and the horizontal arm is connected to the lower end of the vertical arm.
According to an embodiment of the present disclosure, each set of the connection mechanisms further comprises: a plurality of stiffeners connected between the upright and horizontal arms.
According to an embodiment of the present disclosure, a height of the body part from the ground is greater than a height of the horizontal frame from the ground.
According to an embodiment of the present disclosure, the vehicle further includes: at least four support legs mounted on the main body portion, each support leg having a retracted state retracted toward the main body portion and an extended state extended toward the ground to support the weight of the vehicle.
According to an embodiment of the present disclosure, the scanning apparatus further includes: a locking mechanism adapted to lock the slip ring against rotation relative to the upright frame.
According to an embodiment of the present disclosure, the locking mechanism includes: a drive mechanism mounted on the upright frame; and a contact portion mounted on the driving mechanism to contact with an outer ring of the slip ring under driving of the driving mechanism, thereby preventing the slip ring from rotating relative to the upright frame.
According to an embodiment of the present disclosure, the contact portion includes: a base connected to the drive mechanism; and an elastic pad installed on the base and configured to elastically contact an outer ring of the slip ring.
According to an embodiment of the present disclosure, the driving mechanism includes: a link having a first end pivotably connected to the upright frame, the contact portion being pivotably connected between the first and second ends of the link; a driver mounted on the upright frame; and a drive rod connected between the driver and the second end of the link and configured to reciprocate linearly relative to the driver under the drive of the driver to drive the link to pivot relative to the upright frame.
According to an embodiment of the present disclosure, the drive mechanism further comprises a damping device mounted between the drive rod and the second end of the connecting rod.
According to an embodiment of the present disclosure, the buffer device includes: the first end of the cylinder body is pivotally connected with the connecting rod; and a spring installed in the sleeve, wherein one end of the driving rod is inserted into the sleeve and drives the sleeve to move by biasing the spring.
According to an embodiment of the present disclosure, the buffer device further includes: an end cap mounted on the sleeve; the connecting block is arranged at one end of the driving rod, penetrates through the end cover, is inserted into the sleeve and abuts against the spring.
According to an embodiment of the disclosure, a radially outwardly protruding flange is provided on the connecting block, the flange being located inside the end cap.
According to an embodiment of the present disclosure, a stopper rod is provided between a position of the connecting rod, which is connected with the contact portion, and the second end, and a stopper adapted to receive the stopper rod is provided on the base.
According to an embodiment of the present disclosure, the locking mechanism further comprises: a first proximity switch mounted on the upright frame; and a mating switch mounted on the link, the driver stopping driving the contact portion to move further toward the slip ring in response to the mating switch approaching the first proximity switch.
According to an embodiment of the present disclosure, the locking mechanism further comprises: a second proximity switch mounted on the upright frame, the driver ceasing to drive the contact portion further away from the slip ring in response to the mating switch approaching the first proximity switch.
Drawings
FIG. 1 illustrates a side view of an on-board security system of an exemplary embodiment of the present disclosure;
FIG. 2 illustrates an interior simplified side view of the in-vehicle security system shown in FIG. 1;
FIG. 3 illustrates a partial longitudinal cross-sectional view of the on-board security system shown in FIG. 2;
FIG. 4 illustrates a top view of the on-board security system shown in FIG. 2;
FIG. 5 illustrates a simplified front view of a radiographic inspection device of an exemplary embodiment of the present disclosure;
FIG. 6 shows an enlarged schematic view of portion A shown in FIG. 3;
FIG. 7 shows an enlarged schematic view of portion B shown in FIG. 4;
FIG. 8 shows a partial rear view of FIG. 7 from position F;
FIG. 9 illustrates a simplified schematic view of a locking mechanism in combination with a slip ring, the locking mechanism in an unlocked state, according to an exemplary embodiment of the present disclosure;
FIG. 10 shows an enlarged schematic view of section C shown in FIG. 9;
FIG. 11 is a simplified schematic illustration of the locking mechanism of FIG. 9 in combination with a slip ring, the locking mechanism shown in a locked condition;
FIG. 12 shows an enlarged schematic view of section D shown in FIG. 9;
FIG. 13 illustrates another simplified schematic view of a locking mechanism in combination with a slip ring, the locking mechanism being in a locked state, according to an exemplary embodiment of the disclosure;
FIG. 14 shows a top view of FIG. 13;
FIG. 15 shows an enlarged schematic view of section E shown in FIG. 13;
FIG. 16 shows a simplified schematic of a support leg of an on-board security check system according to an exemplary embodiment of the present disclosure;
FIG. 17 illustrates an interior simplified side view of an in-vehicle security system of another exemplary embodiment of the present disclosure;
FIG. 18 illustrates a top view of the on-board security system illustrated in FIG. 17;
FIG. 19 shows a perspective view of the chassis of the on-board security system of FIG. 17; and
fig. 20 shows an enlarged schematic view of portion F shown in fig. 17.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without any inventive step, are intended to be within the scope of the present disclosure.
In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In the description of the present disclosure, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are based on the traveling direction of the vehicle, only for the convenience of describing and simplifying the present disclosure, and in the case of not being explained to the contrary, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the scope of the present disclosure; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
In the description of the present disclosure, it should be understood that the terms "first", "second", etc. are used to define the components, and are used only for convenience of distinguishing the corresponding components, and if not otherwise stated, the terms have no special meaning, and thus, should not be construed as limiting the scope of the present disclosure.
According to a general inventive concept of the present disclosure, there is provided a vehicle-mounted security inspection system, including a main body part; a horizontal frame integrally connected to the main body; and a scanning device, wherein the mounting frame comprises a pair of longitudinal support beams and a pair of transverse support frames. The scanning device includes: an upright frame, a slip ring rotatably mounted on the upright frame, and two sets of connecting mechanisms respectively mounted between upper and lower ends of both sides of the upright frame, the connecting mechanisms being configured to mount the upright frame on one of the longitudinal and transverse support beams such that at least a portion of the upright frame is below an upper surface of the horizontal frame.
FIG. 1 illustrates a side view of an on-board security system of an exemplary embodiment of the present disclosure; FIG. 2 illustrates an interior simplified side view of the in-vehicle security system shown in FIG. 1; FIG. 3 illustrates a partial longitudinal cross-sectional view of the on-board security system shown in FIG. 2; FIG. 4 illustrates a top view of the on-board security system shown in FIG. 2.
In an exemplary embodiment, referring to fig. 1-4, the in-vehicle security check system 100 is adapted to check objects such as luggage, packages, handbags, etc. for the presence of contraband items such as drugs, explosives, at stations, airports, stadiums, malls, etc. where personnel mobility is high. The on-vehicle security inspection system 100 includes a vehicle 10 and a scanning device 20 of a radiographic inspection apparatus mounted on the vehicle. The vehicle 10 includes: the vehicle comprises a chassis, a compartment 11 mounted on the chassis, a cab 12, a partition wall 13 for partitioning the cab 12 and the compartment 11, and wheels 14 mounted on a lower portion of the chassis.
FIG. 5 illustrates a simplified front view of a radiographic inspection device of an exemplary embodiment of the present disclosure; FIG. 6 shows an enlarged schematic view of portion A shown in FIG. 3; FIG. 7 shows an enlarged schematic view of portion B shown in FIG. 4; fig. 8 shows a partial rear view from position F in fig. 7.
In an exemplary embodiment, referring to fig. 1-8, the chassis 101 of the vehicle 10 includes: a body part 1 placed horizontally; and a horizontal frame 2 integrally connected to the main body 1, the horizontal frame 2 including a pair of longitudinal support beams 21 arranged in a traveling direction of the vehicle and a pair of lateral support frames 22. The pair of longitudinal support beams 21 and the pair of lateral support frames 22 define a substantially rectangular accommodation space 23. The scanning device 20 includes: an upright frame 3, a slip ring 4 rotatably mounted on the upright frame 3; and two sets of connecting mechanisms 5 respectively installed between upper and lower ends of both sides of the upright frame 3, the connecting mechanisms 5 being configured to mount the upright frame 3 on the lateral support beams 22 such that at least a portion of the upright frame 3 is lower than an upper surface of the horizontal frame 2. That is, at least a part of the lower portion of the upright frame 3 is accommodated in the accommodation space 23.
In an exemplary embodiment, referring to fig. 1-8, the radiographic inspection apparatus further comprises: a radiation source (not shown) adapted to emit X-rays, a detector array (not shown) adapted to receive X-rays, a transport mechanism 30 adapted to carry the object 40 for movement through the slip ring 4, and a shielding curtain 8 disposed at the entrance and exit of the radiographic inspection apparatus, mounted on opposite sides of the slip ring 4. The radiographic inspection apparatus also includes a controller adapted to receive electrical signals from the various sensors and control operation of associated devices (e.g., radiation source, drive mechanism, etc.) of the radiographic inspection apparatus.
According to the vehicle-mounted security inspection system 100 of the embodiment of the present disclosure, since at least a portion of the upright frame 3 is lower than the upper surface of the horizontal frame 2, the conveying structure 30 of the radiation inspection apparatus for conveying the target 40 to be inspected is also lowered accordingly, thereby facilitating the relevant person to place the target 40 to be inspected on the conveying structure 30 or take the inspected target 40 away from the conveying structure 30. In addition, the stability of the radiation source and detector array mounted on the slip ring can be improved, since the height of the slip ring 4 is also reduced accordingly.
According to an exemplary embodiment of the present invention, as shown in fig. 2-8, each set of said connection means 5 comprises: a horizontal arm 51 extending outwardly from the outer side of the upright frame 3 and supported on the transverse support beam 22. In an exemplary embodiment, each set of said connection mechanisms 5 further comprises: an upright arm 52 installed at an outer side of the upright frame 3, and the horizontal arm 51 is connected to a lower end of the upright arm 52. Thus, the supporting strength of the horizontal arm 51 can be increased. Further, each set of the connecting mechanisms 5 further includes: a plurality of ribs 53 connected between the upright arm 52 and the horizontal arm 51 to further increase the holding strength of the horizontal arm 51. The tie plates 54 may be welded in advance to the lateral support beams 22 of the horizontal frame 2 to increase the supporting strength of the lateral support beams 22. The horizontal arm 51 of the connecting mechanism 5 may be fixed to the cross support beam 22 using, for example, a bolt assembly.
According to an exemplary embodiment of the present invention, as shown in fig. 3 and 6, the height of the main body portion 1 of the chassis 101 from the ground is greater than the height of the horizontal frame 2 from the ground. In this way, the height of the inspection apparatus from the ground can be further reduced.
According to an exemplary embodiment of the invention, the vehicle further comprises: at least four support legs 6 mounted on the main body 1, each support leg having a contracted state contracted toward the main body 1 and an expanded state expanded toward the ground to support the weight of the vehicle 20.
FIG. 16 shows a simplified schematic of a support leg of an on-board security check system according to an exemplary embodiment of the present disclosure.
According to an exemplary embodiment of the present invention, as shown in fig. 2 to 7 and 16, the vehicle 10 further includes at least four support legs 6 mounted on the main body portion 1, each support leg 6 having a contracted state contracted toward the main body portion 1 and an expanded state expanded toward the ground to support the weight of the vehicle 10. That is, in the extended state, support leg 6 extends out and rests on the ground and supports the weight of the entire on-board security check system 100 in place of vehicle 14. This prevents the vehicle from moving forward and backward. Further, a sensor adapted to measure the attitude of the vehicle may be mounted on the vehicle to sense whether the vehicle is in a horizontal state, and if the sensor detects that the vehicle is not in a fitted state, the corresponding support leg is controlled to be raised or lowered, thereby adjusting the vehicle to the horizontal state. This improves the operational stability of the radiographic inspection device.
According to an exemplary embodiment of the present invention, as shown in fig. 16, the support leg 6 includes: a base 61 mounted on the main body 1, a first hydraulic cylinder 62 mounted on the base 1, a first piston rod 63 linearly reciprocating with respect to the first hydraulic cylinder by the drive of the first hydraulic cylinder 62, a second hydraulic cylinder 64 pivotably mounted on an end of the first piston rod 63 about a pivot 66, and a second piston rod 65 linearly reciprocating with respect to the second hydraulic cylinder by the drive of the second hydraulic cylinder 64. During the idle period of the radiographic inspection device of the vehicle-mounted security inspection system 100, the support leg 6 is in a contracted state, the first piston rod 63 is contracted into the first hydraulic cylinder 62, the second hydraulic cylinder 64 is pivoted to a state of being kept horizontal to the first piston rod 63, and the second piston rod 65 is contracted into the second hydraulic cylinder; during the operation of the radiographic inspection apparatus of the in-vehicle security inspection system 100 at the inspection target, the support legs 6 are in the unfolded state, the first piston rod 63 extends out of the first hydraulic cylinder 62, the second hydraulic cylinder 64 is pivoted to a state of being perpendicular to the first piston rod 63, and the second piston rod 65 extends out of the second hydraulic cylinder and is in contact with the ground, thereby jacking up the vehicle 10 so that the wheels 14 are off the ground.
FIG. 9 illustrates a simplified schematic view of a locking mechanism in combination with a slip ring, the locking mechanism in an unlocked state, according to an exemplary embodiment of the present disclosure; FIG. 10 shows an enlarged schematic view of section C shown in FIG. 9; FIG. 11 is a simplified schematic illustration of the locking mechanism of FIG. 9 in combination with a slip ring, the locking mechanism shown in a locked condition; FIG. 12 shows an enlarged schematic view of section D shown in FIG. 9; FIG. 13 illustrates another simplified schematic view of a locking mechanism in combination with a slip ring, the locking mechanism being in a locked state, according to an exemplary embodiment of the disclosure; FIG. 14 shows a top view of FIG. 13; fig. 15 shows an enlarged schematic view of the portion E shown in fig. 13.
In an exemplary embodiment, referring to fig. 9-15, the scanning device 20 further comprises: a locking mechanism 7, said locking mechanism 7 being adapted to lock said slip ring 4 to prevent rotation of said slip ring 4 relative to said upright frame 3. In this way, during the idle state of the scanning apparatus 20, the locking mechanism 7 locks the slip ring 4 to prevent the slip ring 4 from rotating, thereby preventing critical components of the scanning apparatus 20, such as the radiation source, the detector array, and the like, from being damaged during movement of the vehicle 10.
In an exemplary embodiment, referring to fig. 9-14, the locking mechanism comprises: a drive mechanism 71 mounted on the upright frame 3 via a first mount 31; and a contact portion 72 mounted on the driving mechanism 71 to be in close contact with an outer ring of the slip ring 4 by the driving of the driving mechanism 71, thereby preventing the slip ring 4 from rotating with respect to the upright frame 3. The slip ring 4 is prevented from rotating with respect to the upright frame 3 by the frictional force generated by the close contact of the contact portion 72 with the outer ring of the slip ring 4. The locking mechanism 7 can lock the slip ring 4 at any time without being limited by the specific position of the slip ring 4, thereby improving the flexibility of the slip ring braking.
In an exemplary embodiment, the contact portion includes: a base portion 721 connected to the drive mechanism 71; and an elastic pad 722 installed on the base 721, the elastic pad 722 being configured to elastically contact with an outer ring of the slip ring 4, which may prevent the slip ring 4 from being damaged during braking.
In an exemplary embodiment, referring to fig. 9-15, the drive mechanism comprises: a link 711, a first end of the link 711 being pivotably connected to the upright frame 3, the contact portion 72 being pivotably connected between the first end and a second end of the link 711; a driver 712 mounted on the upright frame 4; and a driving rod 713, the driving rod 713 being connected between the driver 712 and the second end of the link 711 and configured to be reciprocally linearly moved with respect to the driver by the driver 712 to drive the link 711 to pivot with respect to the upright frame 3. In an exemplary embodiment, a first end of link 711 is pivotably coupled to second mount 32 by pivot 33.
In an exemplary embodiment, the actuator 712 includes a pneumatic or hydraulic cylinder and the actuator rod 713 includes a piston rod driven by the pneumatic or hydraulic cylinder. In an alternative embodiment, the drive comprises an electric motor and the electric motor drives the link 711 in rotation with respect to said upright 3 through a worm gear in combination with a worm screw acting as a drive rod.
In an exemplary embodiment, referring to fig. 9-15, the drive mechanism 71 further includes a buffer 714 mounted between the drive rod 713 and the second end of the link 711. With the locking mechanism 7 in the locked state, the buffer 714 may provide a predetermined pressing force to the contact portion 72, so that the contact portion 72 presses the outer ring of the slip ring 4 with a substantially constant pressing force.
In an exemplary embodiment, referring to fig. 12, 13 and 15, the buffer 714 includes: a sleeve 7141, a first end of said barrel 7141 providing a pivot 7146 pivotally connected to said link 711; and a spring 7142 installed in the sleeve 7141, and one end of the driving rod 713 is inserted into the sleeve 7141 and drives the sleeve 7141 to move by biasing the spring 7142.
In an exemplary embodiment, the buffering means further comprises: an end cap 7143 mounted on the sleeve 7141; and a connecting block 7144 installed at the one end of the driving rod 713, the connecting block 7144 being inserted through the end cap 7143 inside the sleeve 7141 and abutting against the spring 7142. Further, a flange 7145 protruding radially outward is provided on the connecting block 7144, the flange 7145 being located inside the end cap 7143. Thus, the connecting block 7144 abuts against one end of the spring 7142 through the flange 7145, thereby applying a biasing force to the spring 7142; on the other hand, during the release of the locking mechanism 7, the flange 7145 abuts against the end cap 7143, moving the damping means 714, and moving the contact portion 72 away from the slip ring 4 via the link 711, thereby allowing the slip ring 4 to rotate.
In an exemplary embodiment, referring to fig. 10, 12-14, a stop bar 7111 is provided between the second end of the link 711 and the location where the link is connected to the contact portion 72, and a stop 7211 adapted to receive the stop bar 7111 is provided on the base 721 of the contact portion 72. In the process that the connecting rod 711 gradually drives the contact portion 72 close to the slip ring 4, the contact portion 72 can be prevented from rotating, so that the contact portion 72 is stably pressed against the outer ring of the slip ring 4.
In an exemplary embodiment, referring to fig. 13-14, the locking mechanism 7 further comprises: a first proximity switch 73 mounted on the upright frame 3; and an engagement switch 74 mounted on the link 711, the driver 712 stopping driving the contact portion 73 to move further toward the slip ring 4 in response to the engagement switch 74 approaching the first proximity switch 73. The locking mechanism further comprises: a second proximity switch 75 mounted on the upright frame 3, the driver 712 responsive to the mating switch 74 approaching the first proximity switch 73, ceasing to drive the contact portion 72 further away from the slip ring 4. Thus, the engagement switch 74 engages with the first proximity switch 73 and the second proximity switch 75, and the rotation range of the link 711 can be defined.
In one exemplary embodiment, the first and second proximity switches 73, 75 are electromagnetically coupled to the mating switch 74 in an inductive manner. For example, each of the first proximity switch 73 and the second proximity switch 75 includes a transmission coil, and the cooperation switch 74 includes a reception coil electromagnetically coupled to the transmission coil. In an alternative embodiment, the first proximity switch 73 and the second proximity switch 75 are electrically connected in electrical contact with the mating switch 74.
During the locking operation performed by the locking mechanism 7, as shown in fig. 12 and 13, the controller of the scanning device 20 of the radiographic inspection apparatus controls the driver 712 to drive the drive rod 713 to extend downward, and the drive rod 713 drives the link 711 to rotate clockwise, thereby bringing the contact portion 72 close to the outer ring of the slip ring 4; when the controller receives an electric signal indicating that the engagement switch 74 of the link 711 approaches the first proximity switch 73, the controller stops the driver 712 from continuing to drive the driving rod 713, and the contact portion 72 is kept pressed against the slip ring 4, so that the slip ring stops rotating.
During the operation of releasing the contact portion 72 by the locking mechanism 7, as shown in fig. 10, 12 and 13, the controller of the scanning apparatus 20 of the radiographic inspection apparatus controls the driver 712 to drive the driving rod 713 to contract toward the driver, and the driving rod 713 drives the link 711 to rotate counterclockwise, thereby bringing the contact portion 72 away from the outer ring of the slip ring 4; when the controller receives an electrical signal indicating that the engagement switch 74 on the link 711 is disengaged from the first proximity switch 73, the controller stops the driver 712 from continuing to drive the driving rod 713, and the contact portion 72 is maintained in a state of being away from the slip ring 4, allowing the slip ring to rotate.
FIG. 17 illustrates an interior simplified side view of an in-vehicle security system of another exemplary embodiment of the present disclosure; FIG. 18 illustrates a top view of the on-board security system illustrated in FIG. 17; FIG. 19 shows a perspective view of the chassis of the on-board security system of FIG. 17; fig. 20 shows an enlarged schematic view of portion F shown in fig. 9.
In an exemplary embodiment, referring to fig. 17-20, the chassis of the vehicle 10 includes: a body part 1 placed horizontally; and a horizontal frame 2 'integrally connected with the main body 1, the horizontal 2' frame including a pair of longitudinal support beams 21 'and a pair of lateral support frames 22' arranged in a traveling direction of the vehicle. The pair of longitudinal support beams 21 ' and the pair of transverse support frames 22 ' define a substantially rectangular receiving space 23 '. The scanning device 20 includes: an upright frame 3, a slip ring 4 rotatably mounted on the upright frame 3; and two sets of connecting mechanisms 5 respectively installed between upper and lower ends of both sides of the upright frame 3, the connecting mechanisms 5 being configured to mount the upright frame 3 on the longitudinal support beams 21 'such that at least a portion of the upright frame 3 is lower than an upper surface of the horizontal frame 2'. That is, at least a portion of the lower portion of the upright frame 3 is accommodated in the accommodation space 23'.
Each set of the connection mechanisms 5 includes: a horizontal arm 51 extending outwardly from the outer side of the upright frame 3 and supported on the transverse support beam 22. In an exemplary embodiment, each set of said connection mechanisms 5 further comprises: an upright arm 52 installed at an outer side of the upright frame 3, and the horizontal arm 51 is connected to a lower end of the upright arm 52. Thus, the supporting strength of the horizontal arm 51 can be increased. Further, each set of the connecting mechanisms 5 further includes: a plurality of ribs 53 connected between the upright arm 52 and the horizontal arm 51 to further increase the holding strength of the horizontal arm 51. The tie plates 54 may be welded in advance to the longitudinal support beams 21 of the horizontal frame 2 to increase the supporting strength of the longitudinal support beams 21. The horizontal arm 51 of the connecting mechanism 5 may be fixed to the longitudinal support beam 21 using, for example, a bolt assembly.
It will be appreciated by those skilled in the art that the embodiments described above are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle.
While the present disclosure has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to be illustrative of the preferred embodiments of the disclosure, and should not be construed as limiting the disclosure. Although a few embodiments of the disclosed inventive concept have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the claims and their equivalents.
Claims (17)
1. An on-board security system (100), comprising:
a main body (1);
a horizontal frame (2) integrally connected with the main body part, the horizontal frame comprising a pair of longitudinal support beams (21) and a pair of transverse support frames (22); and
scanning device (20), comprising:
an upright frame (3);
a slip ring (4) rotatably mounted on the upright frame; and
two sets of connecting mechanisms (5) mounted between upper and lower ends of both sides of the upright frame, respectively, and configured to mount the upright frame on one of the longitudinal and transverse support beams such that at least a portion of the upright frame is below an upper surface of the horizontal frame.
2. The on-board security system of claim 1, wherein each set of the attachment mechanisms comprises: a horizontal arm (51) extending outwardly from the outer side of the upright frame and supported on the longitudinal or transverse support beam.
3. The vehicle mounted security system of claim 2, wherein each set of the attachment mechanisms further comprises: an upright arm (52) mounted on the outside of the upright frame, the horizontal arm being connected at its lower end.
4. The vehicle mounted security system of claim 3, wherein each set of the attachment mechanisms further comprises: a plurality of stiffeners (53) connected between the upright and horizontal arms.
5. The vehicle-mounted security system of any one of claims 1-4, wherein the height of the main body portion from the ground is greater than the height of the horizontal frame from the ground.
6. A vehicle mounted security system according to any of claims 1 to 4, wherein at least four support legs (6) are mounted on the main body, each support leg having a retracted state retracted towards the main body and an extended state extended towards the ground.
7. The vehicle mounted security system of any of claims 1-4, wherein the scanning device further comprises: a locking mechanism (7) adapted to lock the slip ring against rotation relative to the upright frame.
8. The on-board security system of claim 7, wherein the locking mechanism comprises:
a drive mechanism (71) mounted on the upright frame; and
a contact portion (72) mounted on the drive mechanism to contact an outer ring of the slip ring under drive of the drive mechanism to resist rotation of the slip ring relative to the upright frame.
9. The vehicle-mounted security system of claim 8, wherein the contact portion comprises:
a base (721) connected to the drive mechanism; and
an elastic pad (722) mounted on the base and configured to elastically contact an outer ring of the slip ring.
10. The on-board security system of claim 9, wherein the drive mechanism comprises:
a link (711) having a first end pivotably connected to the upright frame, the contact portion pivotably connected between the first and second ends of the link;
a driver (712) mounted on the upright frame; and
a drive rod (713) connected between the driver and the second end of the link and configured to reciprocate linearly relative to the driver upon actuation of the driver to drive the link to pivot relative to the upright frame.
11. A vehicle mounted security system according to claim 10, wherein said drive mechanism further comprises a buffer (714) mounted between said drive rod and said second end of said link.
12. The on-board security system of claim 11, wherein the buffer device comprises:
a sleeve (7141) having a first end pivotally connected to the link; and
a spring (7142) mounted within the sleeve, one end of the drive rod inserted into the sleeve and biasing the spring to drive the sleeve to move.
13. The on-board security system of claim 12, wherein the buffer device further comprises:
an end cap (7143) mounted on the sleeve;
a connecting block (7144) mounted at the one end of the drive rod, the connecting block being inserted through the end cap inside the sleeve and abutting against the spring.
14. A vehicle mounted security system according to claim 13, wherein a radially outwardly projecting flange (7145) is provided on the connection block, said flange being located inwardly of the end cap.
15. A vehicle mounted security system according to any of claims 10-14, wherein a stop bar (7111) is provided between the second end and the position of the link where the link connects with the contact portion, and a stop block (7211) adapted to receive the stop bar is provided on the base.
16. The vehicle mounted security system of any of claims 10-14, wherein the locking mechanism further comprises:
a first proximity switch (73) mounted on the upright frame; and
a mating switch (74) mounted on the linkage, the driver ceasing to drive the contact portion further toward the slip ring in response to the mating switch approaching the first proximity switch.
17. The on-board security system of claim 16, wherein the locking mechanism further comprises:
a second proximity switch (75) mounted on the upright frame, the driver ceasing to drive the contact portion further away from the slip ring in response to the mating switch approaching the first proximity switch.
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|---|---|---|---|
| CN202110336798.7A CN112730481B (en) | 2021-03-30 | 2021-03-30 | Vehicle-mounted security inspection system |
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| CN202110336798.7A CN112730481B (en) | 2021-03-30 | 2021-03-30 | Vehicle-mounted security inspection system |
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| CN112730481B true CN112730481B (en) | 2021-06-29 |
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| CN112730473B (en) * | 2021-03-30 | 2021-07-27 | 同方威视技术股份有限公司 | Radiographic inspection device and vehicle-mounted security inspection system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103720485A (en) * | 2012-10-10 | 2014-04-16 | 苏州生物医学工程技术研究所 | Movable CT machine |
| CN103750851B (en) * | 2013-12-26 | 2015-11-25 | 中国科学院苏州生物医学工程技术研究所 | A kind of mobile X-ray diagnostic equipment |
| DE102017200313B4 (en) * | 2017-01-10 | 2022-09-22 | Hartmann Spezialkarosserien Gmbh | Facility for security control |
| CN210652828U (en) * | 2019-07-23 | 2020-06-02 | 宁波耐克萨斯专用车有限公司 | Security check vehicle chassis and mobile security check vehicle |
| CN111098771A (en) * | 2019-10-22 | 2020-05-05 | 山东正泰希尔专用汽车有限公司 | Mobile security inspection vehicle based on Internet of things |
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