Collimator for ray detection

Abstract

The utility model relates to the technical field of radiographic inspection, and provides a collimator for radiographic inspection, which comprises a support box, a driving mechanism arranged in the support box, a connecting mechanism arranged in the support box, adjusting mechanisms arranged on two sides of the top of the support box, and first fixing rods arranged on the adjusting mechanisms, a self-focusing lens is arranged at one end of the first fixing rod; a limiting rod is pulled upwards to be hinged to and separated from a limiting hole, then a first sliding block is pushed in the direction of a self-focusing lens to slide on a first fixing rod, and when a dustproof shell moves to the same position with the self-focusing lens, the limiting rod is hinged to be separated from the limiting hole by pulling the limiting rod downwards to enable the first sliding block to slide on a second fixing rod. And the bottom end of the limiting rod is inserted into the limiting hole for limiting and fixing, so that the purpose of dust prevention of the self-focusing lens through the dustproof shell is achieved, and dust is effectively prevented from falling on the self-focusing lens when the self-focusing lens is not used.

Description

Technical Field

[0001] This utility model relates to the field of X-ray detection technology, specifically to a collimator for X-ray detection. Background Technology

[0002] In X-ray collimator field-of-view testing, in X-ray photon detection for spatial positioning purposes, in addition to the X-ray photons from the target being detected, there are also noise signals entering the field of view radiated from all directions within the detector's field of view. In order to accurately test the field of view angle of the X-ray collimator, a collimator is required.

[0003] A known Chinese patent (Publication No.: CN201921536031.3) discloses a collimator for X-ray inspection, comprising a support column, a base, a self-focusing lens, a measuring lens aperture, and a screw. A first base is located at the upper left corner of the upper surface of the base, and a support column is vertically fixed to the first base. A screw sleeve is fitted onto the support column, and a fixing frame is fixed to the screw sleeve by fixing bolts. The self-focusing lens is installed on the right side of the fixing frame. A second base is located at the lower right corner of the upper right side of the base. This collimator for X-ray inspection has a reasonable overall structure, mainly featuring a self-focusing lens and a measuring lens aperture. The heights of both the self-focusing lens and the measuring lens aperture are easily adjustable. The self-focusing lens can rotate on the support column via the screw sleeve, and the screw sleeve can move up and down on the support column, facilitating changes in the height of the self-focusing lens. The height of the measuring lens aperture is mainly changed by the up and down movement of a slider. The adjustment method is simple, convenient for daily operation, and practical.

[0004] However, in implementing the relevant technology, the above-mentioned collimator for X-ray inspection has the following problems: it is difficult to prevent dust from falling on the self-focusing lens when it is not in use, and dust easily falls on the self-focusing lens. Therefore, when the self-focusing lens is used again, it is necessary to clean the self-focusing lens, which affects the work efficiency. Therefore, a collimator for X-ray inspection is proposed. Utility Model Content

[0005] This invention proposes a collimator for X-ray inspection, which solves the problem in related technologies that it is difficult to prevent dust from falling onto the self-focusing lens when it is not in use, thus requiring cleaning of the self-focusing lens when it is reused, which affects work efficiency.

[0006] The technical solution of this utility model is as follows: a collimator for X-ray detection, comprising: a support box;

[0007] The support box is equipped with a drive mechanism inside, a connecting mechanism inside, and adjustment mechanisms on both sides of the top of the support box.

[0008] A first fixed rod is provided on the adjustment mechanism. A self-focusing lens is provided at one end of the first fixed rod. A first slider is slidably connected to the outer side wall of the first fixed rod. Two dustproof shells are fixedly installed on both sides of the first slider. A limit rod is hinged to the top of the first slider. Multiple limit holes are opened from left to right on the outer side wall of the first fixed rod. The limit rod is inserted into one of the multiple limit holes.

[0009] A second fixing rod is also provided on the adjustment mechanism, and one end of the second fixing rod is provided with a measuring mirror hole.

[0010] Preferably, the drive mechanism includes a motor fixedly installed on the bottom wall of the support box, and a worm gear is fixedly connected to the output end of the motor.

[0011] Preferably, the connecting mechanism includes a rotating rod rotatably connected inside the support box via a fixed plate, a worm gear is fixedly installed on the outer wall of the rotating rod, the worm gear is meshed with the worm, and a first bevel gear is fixedly connected to both ends of the rotating rod.

[0012] Preferably, the adjusting mechanism includes two sliding plates fixedly installed on the top of the support box. A lead screw is rotatably connected to the inner top wall of the two sliding plates. The bottom end of the lead screw extends into the interior of the support box and is fixedly connected to a second bevel gear. The second bevel gear meshes with the first bevel gear. Two second sliders are slidably connected to each other inside the two sliding plates. The two second sliders are threadedly connected to the outer wall of the lead screw. One side of each of the two second sliders is connected to the first fixed rod.

[0013] Preferably, one side of one of the two second sliders is provided with a groove, and a slide plate is slidably connected inside the groove. One side of the slide plate is connected to the second fixed rod.

[0014] Preferably, one side of the slide plate is provided with a plurality of threaded holes from top to bottom, and one side of one of the two second sliders is threadedly connected with a bolt, the bolt being threadedly connected to one of the plurality of threaded holes.

[0015] The working principle and beneficial effects of this utility model are as follows:

[0016] In use, by pulling the limiting rod upward, the limiting rod is hinged and disengaged from the limiting hole. Then, by pushing the first slider towards the self-focusing lens, the first slider slides on the first fixed rod. When the dust cover moves to the same position as the self-focusing lens, by pulling the limiting rod downward, the limiting rod is hinged, and the bottom end of the limiting rod inserts into the limiting hole for limiting and fixing. This achieves the purpose of dust protection for the self-focusing lens through the dust cover, effectively preventing dust from falling on the self-focusing lens when it is not in use. At the same time, when using the self-focusing lens, there is no need to clean it, which effectively improves work efficiency. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the overall side view of the three-dimensional structure proposed in this utility model;

[0020] Figure 3 This is a cross-sectional three-dimensional structural diagram of the support box proposed in this utility model;

[0021] Figure 4 This is a partial three-dimensional structural diagram of the first fixing rod proposed in this utility model;

[0022] Figure 5 This is a partial three-dimensional structural diagram of the slide plate proposed in this utility model;

[0023] Figure 6 This utility model proposes Figure 2 A magnified three-dimensional structural diagram at point A in the diagram.

[0024] In the diagram: 1. Support box; 2. First fixed rod; 3. Self-focusing lens; 4. First slider; 5. Dustproof shell; 6. Limiting rod; 7. Limiting hole; 8. Second fixed rod; 9. Measuring lens hole; 10. Drive mechanism; 100. Motor; 101. Worm gear; 11. Connecting mechanism; 110. Rotating rod; 111. Worm wheel; 112. First bevel gear; 12. Adjusting mechanism; 120. Slide plate; 121. Lead screw; 122. Second bevel gear; 123. Second slider; 13. Slide groove; 14. Slide plate; 15. Threaded hole; 16. Bolt. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model. Example

[0026] Please see Figures 1 to 6 A collimator for X-ray detection includes: a support box 1;

[0027] A first fixed rod 2 is set on the adjustment mechanism 12. A self-focusing lens 3 is set at one end of the first fixed rod 2. A first slider 4 is slidably connected to the outer side wall of the first fixed rod 2. Two dustproof shells 5 are fixedly installed on both sides of the first slider 4. A limit rod 6 is hinged to the top of the first slider 4. Multiple limit holes 7 are opened from left to right on the outer side wall of the first fixed rod 2. The limit rod 6 is inserted into one of the multiple limit holes 7.

[0028] A second fixing rod 8 is also provided on the adjustment mechanism 12, and one end of the second fixing rod 8 is provided with a measuring mirror hole 9.

[0029] The technical solution provided by this utility model is as follows: In use, by pulling the limiting rod 6 upward, the limiting rod 6 is hinged and disengaged from the limiting hole 7. Then, by pushing the first slider 4 towards the self-focusing lens 3, the first slider 4 slides on the first fixed rod 2. When the dust cover 5 moves to the same position as the self-focusing lens 3, by pulling the limiting rod 6 downward, the limiting rod 6 is hinged. The bottom end of the limiting rod 6 is inserted into the interior of the limiting hole 7 for limiting and fixing. This achieves the purpose of dust protection for the self-focusing lens 3 through the dust cover 5, effectively preventing dust from falling on the self-focusing lens 3 when it is not in use. At the same time, when using the self-focusing lens 3, there is no need to clean the self-focusing lens 3, which effectively improves work efficiency.

[0030] Furthermore, a groove 13 is provided on one side of one of the two second sliders 123, and a slide plate 14 is slidably connected inside the groove 13. One side of the slide plate 14 is connected to the second fixed rod 8. Multiple threaded holes 15 are provided on one side of the slide plate 14 from top to bottom. A bolt 16 is threadedly connected to one side of one of the two second sliders 123, and the bolt 16 is threadedly connected to one of the multiple threaded holes 15.

[0031] Specifically, when the height of the measuring lens hole 9 needs to be adjusted separately, the bolt 16 is turned counterclockwise to disengage it from the threaded hole 15. At this time, the slide plate 14 can be pulled according to the required height to slide inside the slide groove 13. After the adjustment is completed, the bolt 16 is turned clockwise to enter the threaded hole 15 for limiting and fixing, thereby achieving the purpose of adjusting the height of the measuring lens hole 9. Example

[0032] Based on Embodiment 1, in this embodiment: a drive mechanism 10 is provided inside the support box 1, and a connecting mechanism 11 is also provided inside the support box 1. Adjustment mechanisms 12 are provided on both sides of the top of the support box 1. The drive mechanism 10 includes a motor 100 fixedly installed on the bottom wall inside the support box 1. A worm gear 101 is fixedly connected to the output end of the motor 100. The connecting mechanism 11 includes a rotating rod 110 rotatably connected inside the support box 1 through a fixed plate. A worm wheel 111 is fixedly installed on the outer wall of the rotating rod 110. The worm wheel 111 and the worm gear 101 are meshed together. Both ends of the rotating rod 110 are fixedly connected to... The first bevel gear 112 is connected to the adjusting mechanism 12, which includes two slide plates 120 that are fixedly installed on the top of the support box 1. The inner top wall of the two slide plates 120 is rotatably connected to a lead screw 121. The bottom end of the lead screw 121 extends into the interior of the support box 1 and is fixedly connected to a second bevel gear 122. The second bevel gear 122 is meshed with the first bevel gear 112. The interior of the two slide plates 120 is slidably connected to two second sliders 123. The two second sliders 123 are threadedly connected to the outer wall of the lead screw 121. One side of the two second sliders 123 is connected to the first fixed rod 2.

[0033] The technical solution provided in this embodiment is as follows: by starting the motor 100, the motor 100 drives the worm gear 101 to rotate, and the worm wheel 111 connected to the worm gear 101 rotates in conjunction, causing the rotating rod 110 to rotate inside the support box 1, and the second bevel gear 122 connected to the first bevel gear 112 rotates in conjunction, thereby causing the lead screw 121 to rotate inside the slide plate 120, and the second slider 123 to rotate inside the slide plate 120, thereby achieving the purpose of synchronously adjusting the height of the self-focusing lens 3 and the measuring mirror hole 9.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A collimator for radiation detection, characterized by, include: Support box (1); The support box (1) is provided with a drive mechanism (10) inside, and a connecting mechanism (11) is also provided inside the support box (1). Adjustment mechanisms (12) are provided on both sides of the top of the support box (1). The first fixed rod (2) is provided on the adjustment mechanism (12). A self-focusing lens (3) is provided at one end of the first fixed rod (2). A first slider (4) is slidably connected to the outer side wall of the first fixed rod (2). Two dustproof shells (5) are fixedly installed on both sides of the first slider (4). A limit rod (6) is hinged to the top of the first slider (4). Multiple limit holes (7) are opened from left to right on the outer side wall of the first fixed rod (2). The limit rod (6) is inserted into one of the multiple limit holes (7). A second fixing rod (8) is also provided on the adjustment mechanism (12), and one end of the second fixing rod (8) is provided with a measuring mirror hole (9).

2. The collimator for X-ray detection according to claim 1, characterized in that: The drive mechanism (10) includes a motor (100) fixedly installed on the bottom wall of the support box (1), and a worm gear (101) is fixedly connected to the output end of the motor (100).

3. A collimator for X-ray detection according to claim 2, characterized in that: The connecting mechanism (11) includes a rotating rod (110) rotatably connected inside the support box (1) via a fixed plate. A worm gear (111) is fixedly installed on the outer wall of the rotating rod (110). The worm gear (111) meshes with the worm (101). A first bevel gear (112) is fixedly connected to both ends of the rotating rod (110).

4. A collimator for X-ray detection according to claim 3, characterized in that: The adjustment mechanism (12) includes two slide plates (120) that are fixedly installed on the top of the support box (1). The inner top walls of the two slide plates (120) are rotatably connected to a lead screw (121). The bottom end of the lead screw (121) extends into the interior of the support box (1) and is fixedly connected to a second bevel gear (122). The second bevel gear (122) meshes with the first bevel gear (112). The interiors of the two slide plates (120) are slidably connected to two second sliders (123). The two second sliders (123) are threadedly connected to the outer wall of the lead screw (121). One side of the two second sliders (123) is connected to the first fixed rod (2).

5. A collimator for X-ray detection according to claim 4, characterized in that: One of the two second sliders (123) has a groove (13) on one side, and a slide plate (14) is slidably connected inside the groove (13). One side of the slide plate (14) is connected to the second fixed rod (8).

6. A collimator for X-ray detection according to claim 5, characterized in that: The slide plate (14) has a plurality of threaded holes (15) arranged sequentially from top to bottom on one side. One of the two second slides (123) is threaded with a bolt (16) on one side. The bolt (16) is threaded with one of the plurality of threaded holes (15).

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