CN210465707U - Ray detection device for preventing lead curtain from blocking - Google Patents
Ray detection device for preventing lead curtain from blocking Download PDFInfo
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- CN210465707U CN210465707U CN201920934786.2U CN201920934786U CN210465707U CN 210465707 U CN210465707 U CN 210465707U CN 201920934786 U CN201920934786 U CN 201920934786U CN 210465707 U CN210465707 U CN 210465707U
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Abstract
The utility model relates to a prevent ray detection device that lead curtain blockked. The conveying device of the detection host comprises a detection conveying section, a first slope conveying section and a second slope conveying section, wherein the detection conveying section, the first slope conveying section and the second slope conveying section are arranged along a detection channel; detecting the passage of the conveying section between the ray generator and the detector; the vertical distance between the lower end of the lead curtain at the positions of the two ends of the detection channel and the conveying plane of the corresponding conveying section is within 100-400 mm, and the distance between the lower end of the lead curtain positioned on the upper side of the second slope conveying section and the conveying plane of the detection conveying section in the vertical direction is within 50 mm; the first slope conveying section is provided with a shielding plate at the lower side of a conveying plane of the first slope conveying section, and the shielding plate is arranged along the conveying plane and is used for shielding rays leaked out of the avoidance channel.
Description
Technical Field
The utility model relates to a prevent ray detection device that lead curtain blockked.
Background
The ray safety inspection equipment is necessary safety inspection equipment in public places, transportation, logistics industries and the like. In the logistics industry, a measured object is conveyed through a ray safety inspection device through a conveying line, the ray safety inspection device irradiates the measured object to form a transmission image, and a computer transmits the transmission image to a diagraph through a network to perform safety identification on the object.
The utility model discloses a ray security check machine as chinese utility model patent specification that the publication number is CN201421439Y authorizes, including the host computer and link up the testing channel of host computer, be equipped with the conveyer belt in the testing channel for the conveying is detected article, is equipped with ray machine and the relative detector array to ray machine in the testing channel in the host computer, is irradiated by the ray when being detected article and passing through, and detector array can collect the ray that passes and be detected article and finally generate the scanning image. Since the security inspection machines of this kind are all detected by radiation, which may damage human body, shielding structures are often disposed on the security inspection machines to prevent radiation from leaking out, such as shielding plates disposed in the inner cavity of the detection channel and shielding lead curtains disposed at the entrance and exit of the detection channel of the host.
In consideration of improving the shielding effect as much as possible, the lower end of a lead curtain of the current security inspection machine is generally close to a conveying belt, most of the lead curtain is about 2mm, but the lead curtain has heavier weight, when the detected object is driven by the conveying belt to pass through an inlet and an outlet, the lead curtain needs to be pushed away, so that for the detected object with large volume and heavy weight, the lead curtain can be pushed away in the moving process along with the conveying belt due to the fact that the friction force between the lead curtain and the conveying belt is larger, but for the detected object with small volume and light weight, the lead curtain can not be pushed away and is blocked at the inlet and the outlet due to the fact that the friction force between the lead curtain and the conveying belt is smaller, and the situation. When the security inspection machine is applied to the full-automatic unmanned logistics industry, the detected objects are accumulated at the front side of an inlet and an outlet of the security inspection machine, the situation that the scanned images of the detected objects and the bar codes and appearances on the scanned images are in disordered matching is caused, and normal detection is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a prevent ray detection device that lead curtain blockked for detect present ray detection device when using, small, light in weight are by the easy accumulational problem of position in exit.
The utility model discloses a prevent ray detection device that lead curtain blockked includes:
the detection host machine is provided with a detection channel, and a ray generator and a detector are respectively and oppositely arranged on two sides of the detection channel in the detection host machine;
the lead curtain is hung on the detection host and is positioned at the inlet and outlet positions at the two ends of the detection channel;
the conveying device comprises a detection conveying section arranged along the detection channel, a first slope conveying section connected to one end of the detection conveying section and a second slope conveying section connected to the other end of the detection conveying section, wherein the first slope conveying section is connected with the detection conveying section outside the detection channel, the second slope conveying section is connected with the detection conveying section in the detection channel, the first slope conveying section inclines upwards from the detection conveying section, and the second slope conveying section inclines downwards from the detection conveying section;
detecting the passage of the conveying section between the ray generator and the detector;
the vertical distance between the lower end of the lead curtain at the positions of the two ends of the detection channel and the conveying plane of the corresponding conveying section is within 100-400 mm, so that an avoidance channel for passing the detected objects with smaller donor size is formed between the lower end of the lead curtain and the conveying plane of the detection conveying section, and the vertical distance between the lower end of the lead curtain on the upper side of the second slope conveying section and the conveying plane of the detection conveying section is within 50 mm;
the first slope conveying section is provided with a shielding plate at the lower side of a conveying plane of the first slope conveying section, and the shielding plate is arranged along the conveying plane and is used for shielding rays leaked out of the avoidance channel.
The utility model discloses a passageway is dodged through setting up to ray detection device for those small, light in weight can need not to push away lead curtain and directly get into in the detection host computer by the detected article, avoided current detection device because lead curtain shelter from, small, light in weight detected article because of with first, second slope carry the frictional force between the section less and can't push away lead curtain, import and export accumulational problem at the detection passageway. In addition, the shielding of ray has also been guaranteed to the structure of exit position department, and the security performance is better.
Further, the slopes of the first conveying section and the second conveying section are within 10-50 degrees. In such a gradient range, good shielding can be realized without influencing the article conveying, and the ray safety inspection device is more reliable in use.
Further, detect and carry the section and carry the independent segmentation setting of section with first slope, realize carrying through the butt joint and connect, detect and carry section and second slope and carry section formula conveyor as an organic whole. The conveying device is convenient and flexible to use, and each conveying section is convenient to assemble and connect.
The first slope conveying section adopts an annular belt conveyor, and the shielding plate is arranged between an upper layer of belt body and a lower layer of belt body of the annular belt conveyor. Therefore, the shielding plate is closer to the detected object, and the setting length of the shielding plate can be shortened when the same shielding effect is achieved.
Preferably, the shielding plate is arranged close to the upper belt body of the annular belt conveyor, so that the shielding plate can also provide certain support for the upper belt body, and smooth conveying is guaranteed.
Further, the vertical height of the upper end of the shielding plate from the detection conveying section is between 100mm and 400 mm. The distance can be matched with the size of the avoiding channel, and finally a better shielding effect is achieved.
Further, the lower end of the lead curtain on the upper side of the second slope conveying section is flush with the conveying plane of the detection conveying section. So that the detection channel has a smaller amount of radiation leakage at the location of the port.
Or, further, the detection conveying section is a straight conveying section horizontally extending along the conveying direction, so that the conveying of the detected articles is more stable, and the detection accuracy is higher.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of a radiation detection apparatus according to the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
fig. 3 is a schematic structural diagram of a second embodiment of the radiation detecting apparatus of the present invention.
In the figure: 1-detecting the host computer; 10-a frame; 13-lead curtain; 20-a straight conveying section; 21-a first ramp conveying section; 22-a second ramp conveying section; 210-a conveyor frame body; 211-conveyor belt; 212-belt rollers; 213-lead plate.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
The utility model discloses a ray detection device's embodiment one, as shown in fig. 1 to fig. 2, including detecting host computer 1, detect host computer 1 inside have the inspection channel who runs through detecting host computer 1, install ray generator and detector on detecting host computer 1's the frame 10. The ray generator and the detector are respectively arranged on two opposite sides of the detection channel, specifically, the ray generator is arranged at a position above the detection channel of the detection host, the detector is arranged at a position below the detection channel of the detection host, so that when the detected object passes through the detection channel, the ray generator emits rays to irradiate the detected object, and the detector receives rays penetrating through the detected object and transmits the rays to the computer to generate a scanning image.
In order to avoid the leakage of the rays in the detection channel to the outside of the detection host 1, shielding structures are arranged on the front side and the rear side of the detection channel on the rack of the detection host 1. In addition, lead curtains 13 are hung on the detection host 1 at the inlet and outlet positions of the detection channel respectively, so as to avoid ray leakage from the inlet and outlet positions.
The ray detection device also comprises a conveying device for conveying detected objects, the conveying device mainly comprises a straight conveying section 20, a first slope conveying section 21 connected to the upstream of the straight conveying section 20 and a second slope conveying section 22 connected to the downstream of the straight conveying section 20, and the straight conveying section 20 penetrates through the detection host machine 1 along a detection channel so as to convey the detected objects when in use. The upstream end of the straight conveying section 20 extends out of the detection host machine 1 for a certain distance and then is connected with the corresponding first slope conveying section 22, and the second slope conveying section 22 is connected with the straight conveying section 20 in the detection host machine 1 and extends out of the detection host machine 1. The straight conveying section 20, the first inclined conveying section 21 and the second inclined conveying section 22 in the embodiment are all annular belt conveyors. The straight conveying section 20 and the first slope conveying section 21 are segmented independent conveying devices, conveying connection is achieved between the straight conveying section 20 and the first slope conveying section through butt joint, and the straight conveying section 20 and the second slope conveying section 22 are integrated conveying devices. Of course, the ray detection device of the present invention is not excluded in other embodiments, the first slope conveying section and the flat conveying section may also be an integrated conveying device, such as an integrated roller conveyor, which conveys the detected object through a plurality of conveying rollers arranged along the conveying path; or the straight conveying section and the second slope conveying section are segmented independent conveying devices, and the straight conveying section and the second slope conveying section are in conveying connection through butt joint.
The lead curtain 13 installed at the inlet position of the detection channel is positioned above the straight conveying section 20, the lead curtain 13 installed at the outlet position of the detection channel is positioned above the second slope conveying section 22, and the vertical distance between the lower end of the lead curtain 13 and the conveying plane at the lower side of the lead curtain (namely the upper surface of the upper-layer belt body) is 300mm, namely, the vertical distance L1 is 300mm, and the vertical distance L2 is 300 mm. Like this, just formed between plumbous curtain 13 and the transport plane and dodged the passageway, detected article and detected the time measuring at the small part that height dimension is less than 300mm, can directly get into and send out through dodging the passageway and detect host computer 1, can not receive the blockking of plumbous curtain 13 to sheltered from by plumbous curtain among the current detection device has been solved, small, light in weight detected article because of with straight transport section between frictional force less and can't push away plumbous curtain, imports and exports accumulational problem at the detection passageway.
Wherein, the lower end of the lead curtain 13 above the second slope conveying surface is flush with the conveying plane of the straight conveying section 20, so that the shielding at the outlet position of the detection channel is ensured. The first slope conveying section 21 is provided with a lead plate 213, and the lead plate 213 is arranged along the conveying plane of the corresponding conveying section and extends upwards along the corresponding slope surface from the position which is basically flush with the straight conveying section. As shown in fig. 2, the lead plate 213 is located at the lower side of the conveying plane (i.e. the upper surface of the upper belt body) of the first slope conveying section, so that even if a small part of rays leak outwards from the avoiding channel, the rays can be shielded and absorbed by the lead plate 213 arranged on the first slope conveying section, and shielding at the inlet position is ensured.
More optimally, the lead plate 213 is arranged close to the upper belt body of the corresponding conveying section, so that the lead plate 213 can also support the upper belt body for supporting and dragging the detected object at the same time, and has double functions.
Of course, when the radiation detection device of the present invention is specifically arranged, the transportation reliability of the first and second slope transportation sections needs to be considered comprehensively to avoid the material from sliding on the slope surface and to shield the leaked radiation, so the slope of the first and second slope transportation sections can be set within 10 ° to 50 °, preferably within 20 ° to 30 °; the vertical height range of the upper end of the lead plate on the first slope conveying section from the straight conveying section is within 100mm-400mm, such as 200mm, 300mm or 350mm, so that the effect of achieving good shielding without using too many shielding plates to cause too high cost is achieved.
The radiation detecting device of the present invention is not limited to the first embodiment described above. In other embodiments, the vertical distance of the lead curtain from the conveying plane of the straight conveying section can also be 100mm, 200mm, 400mm, 350mm and the like, and can be selected within 100mm-400 mm.
In other embodiments, the straight conveying section constituting the detection conveying section may be replaced with an arc-shaped conveying section having a small arc in the up-down direction.
In other embodiments, the conveying plane of the straight conveying section and the lower end of the lead curtain above the second slope conveying section do not need to be completely flush, and the lower end of the lead curtain can be within 50mm of the upper side or the lower side of the conveying plane of the straight conveying section, for example, the lower end of the lead curtain is 50mm, 30mm or 25mm higher than the conveying plane of the straight conveying section, or the lower end of the lead curtain is 50mm, 30mm or 25mm lower than the conveying plane of the straight conveying section, so that good shielding effect and conveying stability can be ensured.
In addition, the present invention further specifically provides a second embodiment of the radiation detection apparatus, as shown in fig. 3, the second embodiment has substantially the same structure as the first embodiment, and the difference is only that the conveying direction is opposite. That is, the radiation detecting apparatus of the first embodiment is a conveying apparatus for a continuous downhill, and the radiation detecting apparatus of the second embodiment is a conveying apparatus for a continuous uphill.
Claims (8)
1. The utility model provides a prevent ray detection device that lead curtain blockked, characterized by includes:
the detection host machine is provided with a detection channel, and a ray generator and a detector are respectively and oppositely arranged on two sides of the detection channel in the detection host machine;
the lead curtain is hung on the detection host and is positioned at the inlet and outlet positions at the two ends of the detection channel;
the conveying device comprises a detection conveying section arranged along the detection channel, a first slope conveying section connected to one end of the detection conveying section and a second slope conveying section connected to the other end of the detection conveying section, wherein the first slope conveying section is connected with the detection conveying section outside the detection channel, the second slope conveying section is connected with the detection conveying section in the detection channel, the first slope conveying section inclines upwards from the detection conveying section, and the second slope conveying section inclines downwards from the detection conveying section;
detecting the passage of the conveying section between the ray generator and the detector;
the vertical distance between the lower end of the lead curtain at the positions of the two ends of the detection channel and the conveying plane of the corresponding conveying section is within 100-400 mm, so that an avoidance channel for passing the detected objects with smaller donor size is formed between the lower end of the lead curtain and the conveying plane of the detection conveying section, and the vertical distance between the lower end of the lead curtain on the upper side of the second slope conveying section and the conveying plane of the detection conveying section is within 50 mm;
the first slope conveying section is provided with a shielding plate at the lower side of a conveying plane of the first slope conveying section, and the shielding plate is arranged along the conveying plane and is used for shielding rays leaked out of the avoidance channel.
2. The radiation detection device for preventing the lead curtain from blocking as recited in claim 1, wherein the slopes of the first slope conveying section and the second slope conveying section are within 10-50 degrees.
3. The radiation detection device for preventing the lead curtain from blocking as claimed in claim 1 or 2, wherein the detection conveying section and the first slope conveying section are arranged separately and separately, the conveying connection is realized through butt joint, and the detection conveying section and the second slope conveying section are an integrated conveying device.
4. The apparatus for detecting radiation blocked by a lead curtain as claimed in claim 3, wherein the first slope conveying section is an endless belt conveyor, and the shielding plate is disposed between upper and lower belt bodies of the endless belt conveyor.
5. The apparatus of claim 4, wherein the shield plate is disposed against the upper belt of the endless belt conveyor.
6. The radiation detection device for preventing the lead curtain from blocking as claimed in claim 1 or 2, wherein the vertical height of the upper end of the shielding plate from the detection conveying section is between 100mm and 400 mm.
7. The radiation detection device for preventing the lead curtain from blocking according to the claim 1 or 2, wherein the lower end of the lead curtain on the upper side of the second slope conveying section is flush with the conveying plane of the detection conveying section.
8. The radiation detection device for preventing the lead curtain from blocking according to the claim 1 or 2, wherein the detection conveying section is a straight conveying section horizontally extending along the conveying direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920934786.2U CN210465707U (en) | 2019-06-20 | 2019-06-20 | Ray detection device for preventing lead curtain from blocking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920934786.2U CN210465707U (en) | 2019-06-20 | 2019-06-20 | Ray detection device for preventing lead curtain from blocking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210465707U true CN210465707U (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920934786.2U Active CN210465707U (en) | 2019-06-20 | 2019-06-20 | Ray detection device for preventing lead curtain from blocking |
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| Country | Link |
|---|---|
| CN (1) | CN210465707U (en) |
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- 2019-06-20 CN CN201920934786.2U patent/CN210465707U/en active Active
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