CN215678219U

CN215678219U - Pipeline ultrasonic detector

Info

Publication number: CN215678219U
Application number: CN202122197806.2U
Authority: CN
Inventors: 何宗辉; 程龙; 石青
Original assignee: Shanghai Piper Pipeline Inspection Technology Development Co ltd
Current assignee: Shanghai Piper Pipeline Inspection Technology Development Co ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-01-28
Anticipated expiration: 2031-09-10

Abstract

The utility model discloses an ultrasonic pipeline detector, which relates to the technical field of pipeline detection and comprises two piston boxes, wherein the two piston boxes are symmetrically arranged, piston plates are connected in the piston boxes in a sliding mode, a same sleeve is connected between the two piston boxes in a rotating mode, a threaded rod is fixedly connected to the center of the outer side face of each piston plate, and the threaded rod penetrates through the side wall of each piston box and is in threaded connection with the sleeve. According to the utility model, through the matched use of the piston box, the piston plate, the threaded rod, the sleeve, the meshing mechanism, the connecting pipe, the supporting rod and the fixing mechanism, the sleeve rotates to drive the threaded rod to slide, so that the piston plate is driven to extrude gas in the piston box, the supporting rod is pushed out, the detection of pipelines with different diameters is realized, and the application range of the detector is enlarged; meanwhile, the ultrasonic probe is conveniently and stably clamped and fixed, the phenomenon that the ultrasonic probe shakes in the detection process is reduced, and the detection precision is improved.

Description

Pipeline ultrasonic detector

Technical Field

The utility model relates to the technical field of pipeline detection, in particular to an ultrasonic pipeline detector.

Background

Ultrasonic inspection refers to a nondestructive inspection method for inspecting internal defects of a metal member by using ultrasonic waves. The ultrasonic wave is transmitted to the surface of the member by the coupling agent by using the transmitting probe, and the ultrasonic wave has different reflected signals when meeting different interfaces when propagating in the member. By using the time difference of the different reflected signals transmitted to the probe, defects inside the component can be inspected. The size, position and general nature of the defect can be determined from the height, position, etc. of the echo signal displayed on the screen. Ultrasonic detection is sensitive to cracks, incomplete penetration and incomplete fusion defects, so that the ultrasonic detection method is widely applied to the field of air tightness detection of pipelines.

The existing pipeline ultrasonic detector usually adopts a trolley capable of walking to assemble a detection probe, and extends into the pipeline to detect the air tightness and cracks, but one detector can only be suitable for the pipeline with one diameter, so that the pipeline ultrasonic detector has the advantages of small application range, poor flexibility and inconvenience in use.

To this end, we propose an ultrasonic pipeline inspection apparatus to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an ultrasonic pipeline detector, which solves the problems that one detector provided in the background technology can only be suitable for pipelines with one diameter, and is small in application range, poor in flexibility and inconvenient to use.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a pipeline ultrasonic detector comprises piston boxes, wherein the number of the piston boxes is two, the piston boxes are symmetrically arranged, piston plates are connected in the piston boxes in a sliding mode, the two piston boxes are rotatably connected with one sleeve pipe, a threaded rod is fixedly connected to the center of the outer side surface of each piston plate, the threaded rod penetrates through the side wall of each piston box and is in threaded connection with the corresponding sleeve pipe, external threads are arranged on the outer side surface of each threaded rod, internal threads matched with the external threads are arranged on the inner side wall of each sleeve pipe, the directions of the external threads of the two threaded rods are opposite, a servo motor is fixedly arranged on the outer side surface of one piston box, a rotating shaft is fixedly connected with the output end of the servo motor and is connected with the sleeve pipe through a meshing mechanism, three connecting pipes which are arranged in an L shape are communicated with one side of the back of the two piston boxes, a supporting rod is arranged in each connecting pipe, and a roller is fixedly arranged at the end part of the supporting rod, and a fixing mechanism is arranged between the two support rods positioned in the same column.

Furthermore, a plurality of sliding grooves are formed in the inner side wall of the piston box, and a plurality of limiting blocks matched with the sliding grooves are fixedly connected to the outer side surface of the piston plate.

Furthermore, the meshing mechanism comprises a first gear fixedly sleeved on the outer side surface of the rotating shaft and a second gear fixedly sleeved on the outer side surface of the sleeve, and the first gear is meshed with the second gear.

It is further three the connecting pipe is the circumference array setting, connecting pipe inside wall sliding connection has the sliding block, bracing piece fixed connection is at the sliding block lateral surface, connecting pipe tip inside wall fixedly connected with is used for preventing the spacing ring of sliding block slippage.

Furthermore, fixed establishment includes the dead lever of fixed connection at two bracing piece lateral surfaces in the same row, slides and cup joints the grip block at the slip pipe of dead lever lateral surface and fixed connection at the slip pipe tip.

Further, the fixed cover of dead lever lateral surface has connect first solid fixed ring, the fixed cover of slip pipe lateral surface has connected the solid fixed ring of second, and the dead lever lateral surface cover that is located between the solid fixed ring of first solid fixed ring and second is equipped with reset spring, reset spring both ends respectively with the solid fixed ring lateral surface of first solid fixed ring and the solid fixed ring lateral surface fixed connection of second.

In summary, compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, through the matched use of the piston box, the piston plate, the threaded rod, the sleeve, the meshing mechanism, the connecting pipe, the sliding block and the supporting rod, the sleeve rotates to drive the threaded rod to slide, so that the piston plate is driven to extrude gas in the piston box, the supporting rod is pushed out, the detection device is suitable for the detection of pipelines with different diameters, and the application range of the detection device is enlarged.

2. The ultrasonic probe is fixedly arranged between the two support rods in the same column by the aid of the matched use of the support rods and the fixing mechanism and the reset action of the reset spring, so that the ultrasonic probe is convenient to mount and dismount quickly, overhaul and maintain conveniently, and the practicability of the device is improved.

Drawings

Fig. 1 is a schematic structural diagram of an ultrasonic pipeline detector according to the present invention.

Fig. 2 is a schematic structural diagram of another angle of the ultrasonic pipeline detector according to the present invention.

Fig. 3 is a partial cross-sectional view of a piston box, a piston plate, a connecting pipe, a supporting rod, a sliding block and a limiting ring in the ultrasonic pipeline detector.

Fig. 4 is a schematic structural diagram of a fixing mechanism in the ultrasonic pipeline inspection apparatus according to the present invention.

Description of reference numerals:

1. a piston case; 2. a piston plate; 3. a threaded rod; 4. a connecting pipe; 5. a slider; 6. a support bar; 7. a limiting ring; 8. a roller; 9. a sleeve; 10. a second gear; 11. a first gear; 12. a rotating shaft; 13. a servo motor; 14. fixing the rod; 15. a sliding tube; 16. a clamping plate; 17. a first retaining ring; 18. a second retaining ring; 19. a return spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, an ultrasonic pipeline detector comprises two piston boxes 1, wherein the piston boxes 1 are symmetrically arranged, piston plates 2 are arranged in the piston boxes 1, and the volume of gas in the piston boxes 1 is changed by moving the piston plates 2; a plurality of sliding chutes are formed in the inner side wall of the piston box 1, and a plurality of stopper which are matched to slide in the sliding chutes are fixedly connected to the outer side surface of the piston plate 2 and used for limiting the piston plate 2 to horizontally slide in the piston box 1.

Referring to fig. 2-3, the same sleeve 9 is rotatably connected between the two piston boxes 1, the center of the outer side surface of each piston plate 2 is fixedly connected with a threaded rod 3, the threaded rod 3 penetrates through the side wall of each piston box 1 and is in threaded connection with the sleeve 9, and the sleeve 9 is rotated to drive the threaded rod 3 to horizontally move, so that the piston plates 2 are pushed to slide, and gas in the piston boxes 1 is extruded; the outer side of the threaded rod 3 is provided with an external thread, the inner side wall of the sleeve 9 is provided with an internal thread matched with the external thread, and the external thread directions of the two threaded rods 3 are opposite, so that when the sleeve 9 rotates, the two threaded rods 3 are driven to move relatively or move back to back.

Referring to fig. 2, for electric drive sleeve pipe 9 rotates, 1 lateral surface fixed mounting at piston box has servo motor 13, servo motor 13 output end fixedly connected with pivot 12, pivot 12 passes through meshing mechanism and the linkage of sleeve pipe 9, meshing mechanism is including fixed first gear 11 and the fixed second gear 10 of cup jointing at the sleeve pipe 9 lateral surface of cup jointing at pivot 12 lateral surface, first gear 11 is connected with the meshing of second gear 10, through setting up meshing mechanism, when making servo motor 13 drive pivot 12 pivoted, sleeve pipe 9 also follows the rotation, be convenient for control the slip of piston plate 2.

Referring to fig. 2-3, three connecting pipes 4 arranged in an L shape are communicated with the opposite sides of the two piston boxes 1, the three connecting pipes 4 are arranged in a circumferential array, and the connecting pipes 4 are arranged by utilizing the stability of a triangle, which is beneficial to improving the stability of the device; the inner side wall of the connecting pipe 4 is connected with a sliding block 5 in a sliding mode, the outer side face of the sliding block 5 is fixedly connected with a supporting rod 6, the end portion of the supporting rod 6 is fixedly provided with a roller 8, when the sleeve 9 rotates to drive the piston plate 2 to extrude gas in the piston box 1, the sliding block 5 is pushed to slide in the connecting pipe 4, and the supporting rod 6 is driven to extend outwards, so that the roller 8 is attached to the inner side wall of the pipeline, the pipeline is suitable for pipelines with different diameters, and the application range of the device is enlarged; connecting pipe 4 tip inside wall fixedly connected with spacing ring 7 for it is spacing to carry out sliding block 5, improved the security of device.

Referring to fig. 1 and 4, for the convenience of carrying out quick installation and dismantlement to ultrasonic probe, make things convenient for operating personnel to overhaul and maintain ultrasonic probe, improve the practicality of device, install fixed establishment between two bracing pieces 6 that lie in same row, including the dead lever 14 of fixed connection at two bracing piece 6 lateral surfaces on the same row, slide and cup joint at the slide tube 15 of dead lever 14 lateral surface and the grip block 16 of fixed connection at slide tube 15 tip, grip block 16 is circular-arc, be convenient for carry out stable centre gripping and fixed to ultrasonic probe, it rocks the phenomenon to reduce ultrasonic probe and take place in the testing process, help improving the detection precision.

Referring to fig. 4, a first fixing ring 17 is fixedly sleeved on the outer side surface of the fixing rod 14, a second fixing ring 18 is fixedly sleeved on the outer side surface of the sliding tube 15, a return spring 19 is sleeved on the outer side surface of the fixing rod 14 between the first fixing ring 17 and the second fixing ring 18, and the sliding tube 15 and the clamping plate 16 are pushed to clamp and fix the ultrasonic probe by utilizing the return action of the return spring 19, so that the operation is simple, the fixing is firm and reliable, and the ultrasonic probe is convenient to mount and dismount; two ends of the return spring 19 are respectively fixedly connected with the outer side surface of the first fixing ring 17 and the outer side surface of the second fixing ring 18, and the return spring 19 is fixed and the two ends of the return spring 19 are limited.

The operating principle of the present invention will now be described as follows:

in the utility model, the two sliding tubes 15 are held by hands to move towards two sides, so that the return spring 19 is compressed, the ultrasonic probe is placed between the two clamping plates 16 at the moment, the sliding tubes 15 are loosened, the return spring 19 is driven to return, and the clamping plates 16 are pushed to the outer side surface of the ultrasonic probe, thereby clamping and fixing the ultrasonic probe.

When 8 diameters of opening of a plurality of gyro wheels are less than the pipeline internal diameter, start servo motor 13 corotation, servo motor 13 is prior art, do not do too much to describe here, servo motor 13 work corotation will drive pivot 12 corotation, pivot 12 corotation passes through meshing mechanism and drives sleeve pipe 9 corotation, sleeve pipe 9 corotation drives two piston plates 2 through two threaded rods 3 and slides back to back in two piston boxes 1, thereby extrude gas in the piston box 1, gaseous promotion sliding block 5 outwards slides in connecting pipe 4, and then promote bracing piece 6 outwards to extend, until gyro wheel 8 and the contact of pipeline inner wall, make the device be applicable to the detection of multiple different internal diameter pipeline.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a pipeline ultrasonic testing appearance, includes piston box (1), its characterized in that: the number of the piston boxes (1) is two and is symmetrically arranged, the piston plates (2) are connected in the piston boxes (1) in a sliding manner, the two piston boxes (1) are connected with the same sleeve (9) in a rotating manner, the center of the outer side surface of each piston plate (2) is fixedly connected with a threaded rod (3), the threaded rod (3) penetrates through the side wall of each piston box (1) and is in threaded connection with the sleeve (9), the outer side surface of each threaded rod (3) is provided with an external thread, the inner side wall of each sleeve (9) is provided with an internal thread matched with the external thread, the external thread directions of the two threaded rods (3) are opposite, one of the piston boxes (1) is fixedly provided with a servo motor (13), the output end of each servo motor (13) is fixedly connected with a rotating shaft (12), and the rotating shaft (12) is connected with the sleeves (9) through a meshing mechanism, two piston case (1) one side mutually the back of the body all communicates there is three connecting pipe (4) that are the setting of L type, be provided with bracing piece (6) in connecting pipe (4), and bracing piece (6) tip fixed mounting has gyro wheel (8), is located two of same row install fixed establishment between bracing piece (6).

2. The ultrasonic pipeline inspection apparatus of claim 1, wherein: a plurality of sliding grooves are formed in the inner side wall of the piston box (1), and a plurality of limiting blocks matched with the sliding grooves are fixedly connected to the outer side surface of the piston plate (2).

3. The ultrasonic pipeline inspection apparatus of claim 1, wherein: the meshing mechanism comprises a first gear (11) fixedly sleeved on the outer side face of the rotating shaft (12) and a second gear (10) fixedly sleeved on the outer side face of the sleeve (9), and the first gear (11) is meshed with the second gear (10).

4. The ultrasonic pipeline inspection apparatus of claim 1, wherein: three connecting pipe (4) are the circumference array setting, connecting pipe (4) inside wall sliding connection has sliding block (5), bracing piece (6) fixed connection is in sliding block (5) lateral surface, connecting pipe (4) tip inside wall fixedly connected with is used for preventing spacing ring (7) of sliding block (5) slippage.

5. The ultrasonic pipeline inspection apparatus of claim 1, wherein: the fixing mechanism comprises a fixing rod (14) fixedly connected to the outer side surfaces of the two supporting rods (6) in the same row, a sliding pipe (15) in sliding sleeve connection with the outer side surface of the fixing rod (14), and a clamping plate (16) fixedly connected to the end portion of the sliding pipe (15).

6. The ultrasonic pipeline inspection apparatus of claim 5, wherein: the fixed ring fixing device is characterized in that a first fixing ring (17) is fixedly sleeved on the outer side face of the fixing rod (14), a second fixing ring (18) is fixedly sleeved on the outer side face of the sliding tube (15), a reset spring (19) is sleeved on the outer side face of the fixing rod (14) located between the first fixing ring (17) and the second fixing ring (18), and two ends of the reset spring (19) are fixedly connected with the outer side face of the first fixing ring (17) and the outer side face of the second fixing ring (18) respectively.