Digital radiographic testing instrument fixing device

Abstract

The utility model provides a digital ray detection instrument fixing device which comprises a pipeline to be detected and a flat panel detector body, the flat panel detector body is placed on the upper side of the annular side face of the pipeline to be detected, a connecting and fixing assembly is arranged on the upper end face of a fixing base, and a guiding and conveying assembly is arranged at the upper end of the fixing base. According to the device, the fixing seats can be fixed at the left end and the right end of the flat panel detector body through the connecting screws and the fixing nuts and the connecting pieces, so that the fixing seats support the flat panel detector body; when the adjusting worm rotates reversely, the adjusting worm can drive the guide wheel to swing outwards through the transmission worm gear, the connecting shaft, the supporting side plate and the first supporting shaft, similarly, when the adjusting worm rotates reversely, the guide wheel can swing inwards, and the adjustable supporting seat can move up and down by unscrewing a locking screw, so that the guide wheel can swing inwards. And therefore, a user can adjust the use height of the bearing roller according to needs.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline flaw detection, in particular to a digital ray detection instrument fixing device. Background Art

[0002] Digital radiographic detection technology is a radiographic detection technology that can obtain digital detection images, including two commonly used methods: digital flat-panel direct imaging technology and computer radiography technology. The former is also often called DR technology, which belongs to direct digital radiographic detection technology. It mainly uses hard flat-panel detectors. Data acquisition only takes a few seconds and can achieve near real-time imaging. It has been widely used in the field of pipeline flaw detection. When the current digital radiographic detection technology is used to perform flaw detection monitoring on pipeline equipment, it is necessary to use a flat-panel detector to surround the pipeline detection part. In this process, a fixing device is needed to fix the flat-panel detector on the annular side of the pipeline for use.

[0003] Publication number "CN220508824U" provides a digital radiation detection instrument fixing device, which is convenient for fixing and installing a flat-panel detector and protecting the flat-panel detector by opening a cavity inside the fixing seat. By setting a connecting strip, it is convenient to fix and connect two fixing seats, thereby firmly fixing and protecting the flat-panel detector. By setting a connecting groove, it is convenient to sleeve it on the outside of the connecting strip, thereby fixing and connecting the two fixing seats. By setting a fixing knob, it is convenient to fix the connecting strip inserted in the connecting groove, thereby fixing the two fixing seats.

[0004] However, the above technical solutions and the prior art have the following defects:

[0005] Although the fixing device is convenient for adjusting the angle between the fixing seat and the wheel seat by means of the adjustment knob, the self-locking ability of the adjustment knob is poor during actual use. Therefore, during actual use, the binding force of the strap easily causes the wheel seat to drive the wheel to swing upward, resulting in contact between the bottom of the fixing device and the annular side of the pipe, so that when the flat-panel detector rotates around the outer wall of the pipe, hard friction will be generated between the bottom of the fixing device and the annular side of the pipe, resulting in the flat-panel detector not rotating smoothly. In addition, the height of the second strap roller in the device is not adjustable, resulting in the need to replace straps of different lengths when detecting pipes of different thicknesses, and the versatility is low. Secondly, the connecting strip in the device is prone to cracks after a period of actual use, so the connection stability to the fixing seat is also poor, resulting in the fixing seat being easily loosened from the flat-panel detector after a period of use, and poor practicality. Utility Model Content

[0006] The purpose of the utility model is to provide a digital ray detection instrument fixing device to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A digital ray detection instrument fixing device comprises a pipeline to be tested, a flat-panel detector body and a fixing seat, wherein the annular side surface of the pipeline to be tested is bound with an elastic band, the flat-panel detector body is placed on the upper side of the annular side surface of the pipeline to be tested, and fixing seats are installed on both left and right ends of the flat-panel detector body, and the upper end surface of the fixing seat is provided with a connecting and fixing component, and the connecting and fixing component is used to fix the fixing seat to the left and right ends of the flat-panel detector body, and the upper end of the fixing seat is provided with a guiding component, and the guiding component enables the flat-panel detector body to perform flaw detection around the pipeline to be tested.

[0009] Preferably, the connecting and fixing assembly includes a connecting screw, a connecting plate, a fixing nut and an installation cavity. The upper end face of the fixing seat is symmetrically fixedly connected with connecting plates on both sides of the front and rear, a connecting screw is inserted inside the connecting plate, fixing nuts are installed on both sides of the annular side of the connecting screw, and an installation cavity is opened on the inner wall of the fixing seat.

[0010] Preferably, the guide assembly includes a supporting side plate, a first supporting shaft, a guide wheel, a supporting seat, an adjusting worm, a supporting roller, a second supporting shaft, an adjustable supporting seat, a connecting shaft and a transmission worm gear. The supporting seat is symmetrically fixedly connected to the front and rear sides of the upper end face of the fixed seat, an adjustable supporting seat is inserted into the support seat, a second supporting shaft is arranged on the upper side of the inner wall of the adjustable support seat, a supporting roller is arranged on the annular side surface of the second supporting shaft, a connecting shaft is arranged inside the fixed seat, a transmission worm gear is arranged at the middle position of the annular side surface of the connecting shaft, an adjusting worm is meshed on the annular side surface of the transmission worm gear, support side plates are arranged on the front and rear sides of the connecting shaft, the first supporting shaft is installed on the lower side of the inner wall of the support side plate, and a guide wheel is arranged on the annular side surface of the first support shaft.

[0011] Preferably, an insertion cavity is provided on the upper end surface of the support seat, and the insertion cavity matches the adjustable support seat, an internal threaded through hole is provided on the upper side of the front end surface of the support seat, and the internal threaded through hole is connected to the insertion cavity, a locking screw is installed inside the internal threaded through hole, and a height scale line is set on the front end surface of the adjustable support seat.

[0012] Preferably, a rotating cap is provided at the upper end of the adjusting worm, and a limiting ring is provided on the upper side of the annular side surface of the adjusting worm.

[0013] Preferably, a through hole is provided inside the connecting sheet, and the through hole matches the connecting screw, and the mounting cavity matches the flat panel detector body.

[0014] Preferably, gripping handles are symmetrically arranged at the front and rear ends of the fixing seat, and a blocking cover is installed on the upper end surface of the fixing seat, and the blocking cover is annular in shape.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. This device can make the adjusting worm rotate forward to drive the guide wheel to swing outward through the transmission worm gear, the connecting shaft, the supporting side plate and the first supporting shaft. Similarly, when the adjusting worm gear is reversed, the guide wheel can swing inward, so that the flat plate detector body can carry out detection around the pipelines to be tested with different thicknesses. In addition, since the transmission worm gear and the adjusting worm gear have self-locking ability, the guide wheel is prevented from swinging during rolling use. By loosening the locking screw, the adjustable support seat can be moved up and down, so that the user can adjust the use height of the supporting roller according to the needs. Therefore, when testing pipelines to be tested with different thicknesses, there is no need to replace elastic straps of different lengths, and the versatility is good.

[0017] 2. This device can fix the fixing base on the left and right ends of the flat-panel detector body by means of connecting screws and fixing nuts and through connecting sheets, so that the fixing base can support the flat-panel detector body. When the fixing nuts are loosened and disassembled, the fixing base and the flat-panel detector body can be separated and disassembled. In addition, since the connecting screws and fixing nuts will not easily crack during use, the fixing base and the flat-panel detector body will not easily become loose, and the practicability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 It is a structural diagram of the guide assembly and the connecting and fixing assembly in the utility model;

[0020] Figure 3 This is a structural diagram of the disassembled connecting and fixing components in the present utility model;

[0021] Figure 4 It is a partial structural diagram of the guide assembly in the utility model;

[0022] Figure 5 This is a structural diagram of the adjustable support seat after disassembly in the utility model.

[0023] In the figure: 1. pipeline to be tested; 2. flat plate detector body; 3. fixing seat; 31. gripping handle; 32. blocking cover; 4. guiding assembly; 41. supporting side plate; 42. first supporting shaft; 43. guiding wheel; 44. supporting seat; 441. inserting cavity; 442. internal threaded through hole; 45. adjusting worm; 451. limiting ring; 452. rotating cap; 46. supporting roller; 47. second supporting shaft; 48. adjustable support seat; 481. height scale line; 49. connecting shaft; 411. driving worm gear; 412. locking screw; 5. connecting and fixing assembly; 51. connecting screw; 52. connecting piece; 53. fixing nut; 54. inserting through hole; 55. installation cavity; 6. elastic band. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 , the utility model provides a technical solution:

[0026] Embodiment 1:

[0027] A digital ray detection instrument fixing device includes a pipeline to be tested 1, a flat-panel detector body 2 and a fixing seat 3. The annular side of the pipeline to be tested 1 is bound with an elastic band 6. The elastic band 6 is convenient for binding a guide component 4 and a connecting and fixing component 5 to the annular side of the pipeline to be tested 1 for use. The flat-panel detector body 2 is placed on the upper side of the annular side of the pipeline to be tested 1. The flat-panel detector body 2 can perform flaw detection on the pipeline to be tested 1 when working. Since the internal detailed structure and working principle of the flat-panel detector body 2 are relatively mature technologies in the prior art, they will not be described in detail here. The fixing seats 3 are installed on both left and right ends of the flat-panel detector body 2, and the fixing seats 3 can support the flat-panel detector body 2.

[0028] A connecting and fixing component 5 is provided on the upper end surface of the fixing seat 3, and the connecting and fixing component 5 is used to fix the fixing seat 3 to the left and right ends of the flat-panel detector body 2. A guiding component 4 is provided on the upper end of the fixing seat 3, and the guiding component 4 enables the flat-panel detector body 2 to perform flaw detection around the pipeline 1 to be tested.

[0029] The connection and fixing assembly 5 includes a connecting screw 51, a connecting piece 52, a fixing nut 53 and an installation cavity 55. The connecting piece 52 is symmetrically fixedly connected to the front and rear sides of the upper end surface of the fixing seat 3. The connecting piece 52 is connected to the fixing seat 3 by welding. The connecting piece 52 can support the connecting screw 51. The connecting screw 51 is inserted into the connecting piece 52. The fixing nuts 53 are installed on the left and right sides of the annular side of the connecting screw 51. The connecting screw 51 and the fixing nut 53 can connect and fix the fixing seats 3 on the left and right sides through the connecting piece 52, so as to avoid the fixing seat 3 from being stuck during use. During the process, the nut 53 becomes loose and separates from the flat-panel detector body 2. The fixing nut 53 is a butterfly nut. The fixing nut 53 of the butterfly nut is convenient for the user to loosen or tighten it by hand for disassembly and assembly. The inner wall of the fixing seat 3 is provided with an installation cavity 55, and the installation cavity 55 matches the flat-panel detector body 2. The installation cavity 55 facilitates the left and right ends of the flat-panel detector body 2 to be inserted into the fixing seat 3. The connecting piece 52 is provided with an insertion hole 54, and the insertion hole 54 matches the connecting screw 51. The insertion hole 54 facilitates the connecting screw 51 to be inserted into the connecting piece 52.

[0030] Embodiment 2:

[0031] On the basis of the first embodiment, in this embodiment, by rotating the adjusting worm 45 forward, the adjusting worm 45 can drive the guide wheel 43 to swing outward through the transmission worm gear 411, the connecting shaft 49, the supporting side plate 41 and the first supporting shaft 42. Similarly, when the adjusting worm 45 is reversed, the guide wheel 43 can be swung inward, so that the flat-panel detector body 2 can perform surrounding detection on the pipes 1 to be tested of different thicknesses. By loosening the locking screw 412, the adjustable support seat 48 can be moved up and down, so that the user can adjust the use height of the supporting roller 46 as needed.

[0032] The guide assembly 4 includes a supporting side plate 41, a first supporting shaft 42, a guiding wheel 43, a supporting seat 44, an adjusting worm 45, a supporting roller 46, a second supporting shaft 47, an adjustable supporting seat 48, a connecting shaft 49 and a driving worm gear 411. The upper end surface of the fixed seat 3 is symmetrically fixedly connected with the supporting seat 44 on both sides of the front and rear sides. The supporting seat 44 is connected to the fixed seat 3 by welding. The supporting seat 44 can limit the adjustable supporting seat 48. The adjustable supporting seat 48 is inserted inside the supporting seat 44. The adjustable supporting seat 48 can support the second supporting shaft 47. A second support shaft 47 is arranged on the upper side of the inner wall of the support seat 48, and the second support shaft 47 can support the supporting roller 46. The supporting roller 46 is arranged on the annular side of the second support shaft 47. The supporting roller 46 is a rotatable structure. The rotatable supporting roller 46 can not only support and tighten the elastic band 6, but also when the flat-panel detector body 2 moves around the pipeline 1 to be tested for detection, the elastic band 6 can be used to limit and guide the fixed seat 3, thereby avoiding the flat-panel detector body 2 from deviating when it moves around the pipeline 1 to be tested for detection.

[0033] A connecting shaft 49 is arranged inside the fixing seat 3, and the connecting shaft 49 is connected to the transmission worm gear 411 and the supporting side plate 41 by welding. The connecting shaft 49 can support the supporting side plate 41. A transmission worm gear 411 is arranged in the middle position of the annular side surface of the connecting shaft 49, and the transmission worm gear 411 can drive the connecting shaft 49 to rotate. An adjusting worm 45 is meshed with the annular side surface of the transmission worm gear 411. The adjusting worm 45 is connected to the limiting ring 451 and the rotating cap 452 by welding. The adjusting worm 45 can drive the transmission worm gear 411 to rotate. Supporting side plates 41 are arranged on both the front and rear sides of the connecting shaft 49. The supporting side plate 41 can support the first supporting shaft 42. The first supporting shaft 42 is installed on the lower side of the inner wall of the supporting side plate 41. The first supporting shaft 42 can support the guide wheel 43. The annular side of the first supporting shaft 42 is provided with a guide wheel 43. The guide wheel 43 is a rotatable structure. The rotatable guide wheel 43 makes the flat-panel detector body 2 move around the pipeline 1 to be tested more smoothly. The front and rear ends of the fixing seat 3 are symmetrically provided with gripping rods 31. The gripping rod 31 is connected to the fixing seat 3 by welding. The gripping rod 31 is convenient for the user to move the fixing seat 3 by hand.

[0034] An inserting cavity 441 is provided on the upper end surface of the support seat 44, and the inserting cavity 441 matches the adjustable support seat 48. The inserting cavity 441 facilitates the adjustable support seat 48 to be inserted into the support seat 44. An internal threaded through hole 442 is provided on the upper side of the front end surface of the support seat 44, and the internal threaded through hole 442 is communicated with the inserting cavity 441. A locking screw 412 is installed inside the internal threaded through hole 442. The internal threaded through hole 442 and the locking screw 412 can lock the adjustable support seat 48 inserted in the inserting cavity 441. The locking screw 412 is a butterfly screw. The locking screw 412 of the butterfly screw is convenient for the user to tighten or loosen it by hand. The adjustable support seat 48 A height scale line 481 is provided on the front end surface, and the height scale line 481 is convenient for the user to observe the height of the adjustable support seat 48, so as to adjust the adjustable support seats 48 on the left and right sides to the same height at a later time. A rotating cap 452 is provided on the upper end of the adjusting worm 45, and the rotating cap 452 is convenient for the user to rotate the adjusting worm 45 by hand. A limiting ring 451 is provided on the upper side of the annular side surface of the adjusting worm 45, and a blocking cover 32 is installed on the upper end surface of the fixed seat 3, and the blocking cover 32 is annular in shape. The limiting ring 451 and the blocking cover 32 can limit the adjusting worm 45 to prevent the adjusting worm 45 from shifting up and down or shaking during rotation and use.

[0035] Working principle: When it is necessary to use the flat plate detector body 2 to perform flaw detection on the pipeline 1 to be tested, the user first inserts the two sets of fixing seats 3 at the left and right ends of the flat plate detector body 2. During this process, the connecting screw 51 needs to be inserted into the insertion hole 54, and then the fixing nut 53 is fixed to the left and right sides of the annular side of the connecting screw 51, so that the connecting screw 51 and the fixing nut 53 connect and fix the two sets of fixing seats 3 through the connecting piece 52, thereby fixing the two sets of fixing seats 3 at the left and right ends of the flat plate detector body 2 (refer to Figure 2 ), after the fixing nut 53 is loosened and separated from the connecting screw 51, the fixing base 3 can be disassembled and separated from the flat panel detector body 2 (refer to Figure 3), so that the flat-panel detector body 2 can be disassembled separately; when the flat-panel detector body 2 is fixed in the fixing seat 3, the user rotates the adjusting worm 45 forward through the rotating cap 452, so that the adjusting worm 45 drives the driving worm wheel 411 to reverse, and the reversed driving worm wheel 411 will drive the connecting shaft 49 to reverse together, and then the connecting shaft 49 drives the guide wheel 43 to swing outward through the supporting side plate 41 and the first supporting shaft 42. Similarly, when the adjusting worm 45 is reversed, the guide wheel 43 can be swung inward. In this process, when the two sets of guide wheels 43 swing inward respectively, the flat-panel detector body 2 can perform surrounding detection on the small-diameter pipeline 1 to be tested, and when the two sets of guide wheels 43 swing outward respectively, it can The flat plate detector body 2 is made to perform surrounding detection on the pipeline 1 to be tested with a large diameter, thereby improving the versatility of the flat plate detector body 2, and because the transmission worm wheel 411 and the adjusting worm 45 have a self-locking ability, the connecting shaft 49 is prevented from loosening during use; then the locking screw 412 is loosened, and the adjustable support seat 48 can be moved up and down at this time, so that the user can adjust the use height of the supporting roller 46 as needed. After the adjustment is completed, the locking screw 412 is tightened to prevent the adjustable support seat 48 from falling back and loosening, and then the device can be placed on the upper side of the annular side of the pipeline 1 to be tested. At this time, the elastic band 6 is put on the annular side of the pipeline 1 to be tested, and the supporting roller 46 is placed on the inner side of the elastic band 6 (reference Figure 1 ), and then the user operates the flat panel detector body 2, and moves the flat panel detector body 2 by holding the handle 31, so that the flat panel detector body 2 performs flaw detection around the pipeline 1 to be tested. During this process, the guide wheel 43 enables the flat panel detector body 2 to move around the pipeline 1 to be tested more smoothly. At the same time, the supporting roller 46 can not only support and tighten the elastic band 6, but also limit and guide the flat panel detector body 2 during the process of moving around the pipeline 1 to be tested, so as to avoid the flat panel detector body 2 from deviating during the process of moving around the pipeline 1 to be tested, thereby ensuring the detection accuracy of the flat panel detector body 2.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A digital ray detection instrument fixing device, comprising a pipeline to be detected (1), a flat panel detector body (2) and a fixing seat (3), characterized in that: The annular side surface of the pipeline to be tested (1) is bound with an elastic band (6), a flat panel detector body (2) is placed on the upper side of the annular side surface of the pipeline to be tested (1), and fixed seats (3) are installed at both left and right ends of the flat panel detector body (2); The upper end surface of the fixing seat (3) is provided with a connecting and fixing component (5), and the connecting and fixing component (5) is used to fix the fixing seat (3) to the left and right ends of the flat-panel detector body (2); the upper end of the fixing seat (3) is provided with a guiding component (4), and the guiding component (4) enables the flat-panel detector body (2) to carry out flaw detection around the pipeline (1) to be detected; The guide assembly (4) comprises a supporting side plate (41), a first supporting shaft (42), a guide wheel (43), a supporting seat (44), an adjusting worm (45), a supporting roller (46), a second supporting shaft (47), an adjustable support seat (48), a connecting shaft (49) and a transmission worm gear (411); the upper end face of the fixed seat (3) is symmetrically fixedly connected to the support seat (44) on both sides of the front and rear sides; the support seat (44) is inserted with an adjustable support seat (48); the upper side of the inner wall of the adjustable support seat (48) is provided with a second supporting shaft (47); A supporting roller (46) is arranged on the annular side surface of the second support shaft (47), a connecting shaft (49) is arranged inside the fixed seat (3), a transmission worm gear (411) is arranged at the middle position of the annular side surface of the connecting shaft (49), an adjusting worm (45) is meshed on the annular side surface of the transmission worm gear (411), support side plates (41) are arranged on both the front and rear sides of the connecting shaft (49), a first support shaft (42) is installed on the lower side of the inner wall of the support side plate (41), and a guide wheel (43) is arranged on the annular side surface of the first support shaft (42).

2. A digital ray detection instrument fixing device according to claim 1, characterized in that: The connecting and fixing assembly (5) comprises a connecting screw (51), a connecting sheet (52), a fixing nut (53) and a mounting cavity (55); the connecting sheet (52) is symmetrically fixedly connected to the front and rear sides of the upper end surface of the fixing seat (3); the connecting screw (51) is inserted into the inside of the connecting sheet (52); the fixing nuts (53) are installed on the left and right sides of the annular side surface of the connecting screw (51); and the mounting cavity (55) is opened on the inner wall of the fixing seat (3).

3. A digital ray detection instrument fixing device according to claim 1, characterized in that: The upper end surface of the support seat (44) is provided with an insertion cavity (441), and the insertion cavity (441) matches the adjustable support seat (48); the upper side of the front end surface of the support seat (44) is provided with an internal threaded through hole (442), and the internal threaded through hole (442) is connected to the insertion cavity (441); a locking screw (412) is installed inside the internal threaded through hole (442); and the front end surface of the adjustable support seat (48) is provided with a height scale line (481).

4. A digital ray detection instrument fixing device according to claim 1, characterized in that: A rotating cap (452) is provided at the upper end of the adjusting worm (45), and a limiting ring (451) is provided on the upper side of the annular side surface of the adjusting worm (45).

5. A digital ray detection instrument fixing device according to claim 2, characterized in that: The connecting piece (52) is provided with an insertion through hole (54) inside, and the insertion through hole (54) matches the connecting screw (51), and the installation cavity (55) matches the flat panel detector body (2).

6. A digital ray detection instrument fixing device according to claim 1, characterized in that: The fixing seat (3) is symmetrically provided with gripping handles (31) at the front and rear ends thereof, and a blocking cover (32) is mounted on the upper end surface of the fixing seat (3), and the blocking cover (32) is annular in shape.

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