Laser high-precision detection device for sealing size of double-layer composite air pipe

Abstract

The invention relates to the technical field of measuring devices, and particularly discloses a double-layer composite air pipe sealing size laser high-precision detection device which comprises a base and an air pipe, sealing plates are fixedly connected to the positions, close to a port, of the outer surface of the air pipe, a bolt is arranged between the two sealing plates, and a guide seat is movably connected to the upper side of the base. A positioning assembly is arranged on the upper side of the guide base and comprises a sleeve fixedly connected with the outer surface of the upper end of the guide base. By arranging the positioning assembly, the air pipes can be lifted and supported on the two sides of the connecting position of the air pipes through the symmetrically-distributed jacking blocks, the probability that the air pipes deform downwards in the placing process can be effectively reduced, therefore, the two sets of air pipes are kept in a straight line shape, and then the risk that a gap between the sealing plates changes can be reduced; the detection error of the sealing performance of the air pipe joint caused by the external force can be reduced, and the detection precision can be effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of measuring devices, in particular to a double-layer composite air pipe sealing size laser high-precision detection device. BACKGROUND

[0002] The double-layer composite air pipe is a ventilation pipe system composed of two different material layers. The double-layer composite air pipe has become the mainstream choice for modern building ventilation systems due to its excellent fireproof performance, heat preservation effect and construction convenience. The sealing performance of the air pipe system directly affects the ventilation efficiency, energy consumption and operation safety, especially in air conditioning and smoke control systems.

[0003] For example, the Chinese patent with publication number CN222689341U discloses an air pipe interface sealing detection device. The device improves the convenience of detection, reduces detection costs, improves use diversity, and improves use effect by setting an integrated bidirectional control and fixing structure. The integrated gas injection detection and inflation of the inflatable bladder allows the sealing of air pipe interfaces of different diameters, reducing the impact on detection effect. During assembly, flange connection is often used to fixedly connect two groups of air pipes. In order to ensure the sealing performance of the air pipe system, the sealing performance of the connection of the air pipe needs to be detected after assembly. However, when the existing sealing performance detection device detects the connection of the air pipe, the connection of the air pipe will deform downward under the action of gravity, so that the gap on the lower side of the air pipe connection will be larger than the upper side. During sealing detection, the deformation of the joint will increase the detection error, thereby adversely affecting the detection accuracy of the air pipe sealing performance. SUMMARY

[0004] The present application aims to provide a double-layer composite air pipe sealing size laser high-precision detection device to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a double-layer composite air pipe sealing size laser high-precision detection device, comprising a base and an air pipe, the outer surface of the air pipe is fixedly connected with a sealing plate near the port, two groups of sealing plates are provided with bolts, the upper side of the base is movably connected with a guide seat, the upper side of the guide seat is provided with a positioning assembly, the positioning assembly comprises a sleeve fixedly connected with the outer surface of the upper end of the guide seat, the inner surface of the sleeve is fixedly connected with an electric push rod on the lower side, the driving rod of the electric push rod is fixedly connected with a jack on the upper end, the outer surface of the upper end of the jack is provided with a mounting groove, the mounting groove is screwedly connected with an adjusting rod, the upper end of the adjusting rod is rotatably connected with a rotating plate, the upper end of the rotating plate is fixedly connected with a top block on the outer surface, and the outer surface of the top block is in contact with the lower side of the air pipe.

[0006] Preferably, the top rod is located inside the sleeve and in sliding contact with the inner surface of the sleeve, the outer surface of the top block is in the shape of a circular arc, the top rod and the outer surface of the adjusting rod are provided with scale lines, and the number of the electric push rods, the sleeves and the top blocks is two and is symmetrically distributed.

[0007] Preferably, the upper side of the guide seat is provided with a detection assembly, the detection assembly comprises a connecting seat fixedly connected with the outer surface of the upper end of the guide seat, a mounting frame fixedly connected with the outer surface of the upper end of the connecting seat, the mounting frame is in the shape of a circular ring, a rotating frame rotatably connected with the inner side of the mounting frame, a laser emitter fixedly connected with the inner surface of the lower side of the rotating frame, and a photosensitive plate provided on the inner surface of the rotating frame in a symmetrical position with the laser emitter.

[0008] Preferably, the outer surface of the right end of the connecting seat is fixedly connected with a second motor, the output shaft of the second motor penetrates to the left side of the connecting seat and is in rotating contact with the bearing connecting seat, the output shaft of the second motor is fixedly connected with a gear, the outer surface of the rotating frame is fixedly connected with a tooth block, the number of the tooth blocks is several groups and is arranged in a ring-like array, and the gear penetrates to the inner side of the mounting frame and is in meshing transmission connection with the tooth block.

[0009] Preferably, the upper side of the base is provided with a clamping assembly, the clamping assembly comprises a supporting seat fixedly connected with the outer surface of the upper end of the base, a bracket fixedly connected with the outer surface of the upper end of the supporting seat, the bracket is used for placing the air pipe, an active slot is embeddedly formed in the outer surface of the upper end of the bracket, a sliding plate is horizontally and slidably connected with the inner surface of the active slot, a clamping plate is fixedly connected with the outer surface of the upper end of the sliding plate, and the clamping plate is in the shape of an L-shaped structure.

[0010] Preferably, the outer surface of the clamping plate is fixedly connected with an elastic plate close to one side of the air pipe, the outer surface of the elastic plate is in contact with the air pipe, the number of the elastic plates is several groups and is arranged in a parallel array, the elastic plates are made of wear-resistant elastic materials, the clamping plates are symmetrically arranged on the front and rear sides of the air pipe, the inner side of the active slot is slidably connected with a movable block, and the outer surface of the upper end of the movable block is in the shape of an inclined surface.

[0011] Preferably, the outer surface of the movable block is fixedly connected with a spring away from one side of the sliding plate, one end of the spring away from the movable block is fixedly connected with the inner wall of the active slot, the inner surface of the active slot is slidably connected with a pressing plate, the lower end of the outer surface of the pressing plate is in the shape of a circular arc and is in sliding contact with the upper surface of the movable block, and the upper end of the outer surface of the pressing plate is in contact with the lower surface of the air pipe.

[0012] Preferably, the upper side of the base is provided with a displacement assembly, the displacement assembly comprises a guide groove embedded on the upper side of the base, the guide seat is located inside the guide groove and in sliding contact with the guide groove, the outer surface of the right end of the support seat is fixedly connected with a motor one, the left end of the output shaft of the motor one is fixedly connected with a screw rod, the screw rod penetrates through the left and right ends of the guide seat and is in screw transmission connection with the guide seat, the two groups of support seats are fixedly connected with a slide rod, and the guide seat is in sliding contact with the outer surface of the slide rod.

[0013] Preferably, the inner side of the rotating frame is provided with a cleaning assembly, the cleaning assembly comprises a pin shaft one fixedly connected with the outer surface of the rotating frame, the outer surface of the pin shaft one is rotatably connected with a swing rod, the end away from the pin shaft one of the swing rod is rotatably connected with a pin shaft two, and the outer surface of the pin shaft two is rotatably connected with a cleaning roller.

[0014] Preferably, the outer surface of the cleaning roller is in rotary contact with the outer surface of the sealing plate, the cleaning roller is made of a brush, and the expansion plate is fixedly connected between the swing rod and the rotating frame.

[0015] Compared with the prior art, the beneficial effects of the present application are: 1. The positioning assembly is arranged, the wind pipe can be lifted and supported on both sides of the wind pipe connection through the symmetrically distributed top blocks, the probability of downward deformation of the wind pipe during placement can be effectively reduced, so that the two groups of wind pipes remain linear, thereby reducing the risk of changes in the gap between the sealing plates, helping to reduce the detection error of the sealing performance of the wind pipe connection under the action of external force, and thereby effectively improving the detection accuracy;

[0016] 2. The detection assembly is arranged, the laser emitter and the photosensitive plate are driven to do circular motion through the mounting frame, 360-degree annular scanning of the wind pipe connection can be realized, so that the detection effect of the wind pipe connection can be further improved, the fluorescent gas in the wind pipe can be discharged outward from the gap of the sealing plate, and the leakage range and position of the fluorescent gas can be directly observed under the irradiation of the laser beam, so that the gap size of the wind pipe connection can be further detected;

[0017] 3. The cleaning assembly is arranged, the cleaning roller can always be in contact with the outer side of the sealing plate under the extrusion force of the expansion plate, the gap between the two sealing plates can be cleaned through the rotary contact between the cleaning roller and the outer side of the sealing plate, the probability of blockage of the gap of the sealing plate by impurities can be effectively reduced, thereby effectively reducing the interference caused by the adhesion of impurities in the process of detecting the sealing performance of the wind pipe, and thereby effectively improving the detection accuracy of the sealing performance of the wind pipe connection. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort based on these drawings.

[0019] Figure 1 It is a schematic view of the overall structure of the present application. Figure 2 It is a top view of the overall structure of the present application. Figure 3 It is a schematic view of the overall structure of the present application. Figure 2 It is a sectional view along A-A direction in the present application. Figure 4 It is a schematic view of the overall structure of the present application. Figure 2 It is a sectional view along B-B direction in the present application. Figure 5 It is a schematic view of the overall structure of the present application. Figure 2 It is a sectional view along C-C direction in the present application. Figure 6 It is a schematic view of the overall structure of the present application. Figure 5 It is an enlarged schematic view at D in the present application. Figure 7 It is an enlarged schematic view at E in the present application. Figure 5 It is an enlarged schematic view at F in the present application. Figure 8 Figure 3 It is an enlarged schematic view at F in the present application.

[0020] Explanation of reference signs: 11, base; 12, guide groove; 13, guide seat; 14, support seat; 15, motor one; 16, connecting seat; 17, mounting frame; 18, air pipe; 19, bracket; 20, clamping plate; 21, motor two; 22, sealing plate; 23, pin shaft one; 24, bolt; 25, pin shaft two; 26, swing rod; 27, expansion plate; 28, cleaning roller; 29, rotating frame; 30, laser emitter; 31, tooth block; 32, sleeve; 33, electric push rod; 34, jacking rod; 35, mounting groove; 36, adjusting rod; 37, rotating plate; 38, top block; 39, movable groove; 40, spring; 41, movable block; 42, extrusion plate; 43, sliding plate; 44, elastic plate; 45, photosensitive plate; 46, screw rod; 47, sliding rod; 48, gear. DETAILED DESCRIPTION

[0021] ​With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0022] Please refer to Figures 1 to 8 , the present application provides a technical solution: A double-layer composite air pipe sealing size laser high-precision detection device, comprising a base 11 and an air pipe 18, the outer surface of the air pipe 18 is fixedly connected with a sealing plate 22 near the port, two groups of the sealing plate 22 are provided with bolts 24, the upper side of the base 11 is movably connected with a guide seat 13, the upper side of the guide seat 13 is provided with a positioning assembly, the positioning assembly comprises a sleeve 32 fixedly connected with the outer surface of the upper end of the guide seat 13, the inner surface of the sleeve 32 is fixedly connected with an electric push rod 33 at the lower side, the driving rod of the electric push rod 33 is fixedly connected with a top rod 34 at the upper end, the outer surface of the upper end of the top rod 34 is provided with a mounting groove 35, the mounting groove 35 is screw transmission connected with an adjusting rod 36, the upper end of the adjusting rod 36 is rotatably connected with a rotating plate 37, the outer surface of the upper end of the rotating plate 37 is fixedly connected with a top block 38, the outer surface of the upper side of the top block 38 is in contact with the lower side of the air pipe 18.

[0023] The top rod 34 is located inside the sleeve 32 and in sliding contact with the inner surface of the sleeve 32, the outer surface of the top block 38 is arc-shaped, the outer surfaces of the top rod 34 and the adjusting rod 36 are both provided with scale lines, the number of the electric push rod 33, the sleeve 32 and the top block 38 is two groups and symmetrically distributed.

[0024] The upper side of the base 11 is provided with a clamping assembly, the clamping assembly comprises a support seat 14 fixedly connected with the outer surface of the upper end of the base 11, the outer surface of the upper end of the support seat 14 is fixedly connected with a bracket 19, the bracket 19 is used for placing the air pipe 18.

[0025] By adopting the above technical scheme, when the multi-section air pipe 18 is assembled, the two groups of sealing plates 22 on the surfaces of the air pipe 18 are locked and fixed by the bolts 24, and the sealing gaskets made of rubber material arranged between the two groups of sealing plates 22 can seal the space between the sealing plates 22. Before the air pipe 18 is hoisted, the sealing property of the connection part of the two groups of air pipes 18 needs to be detected. During the detection process, the bracket 19 is fixedly installed on the base 11 by the supporting seat 14, and the air pipe 18 is lifted and supported by the bracket 19. Then, the two ends of the air pipe 18 are placed on the upper side of the bracket 19, and the connection part of the two groups of air pipes 18 will be deformed downward under the action of gravity. In order to reduce the influence of the deformation of the connection part of the air pipe 18 on the detection accuracy of the sealing property, the positioning assembly is arranged. The guide seat 13 slidably supports the top rod 34 through the sleeve 32. After the air pipe 18 is placed on the upper side of the bracket 19, the electric push rod 33 is started to run. The electric push rod 33 drives the top rod 34 to slide upward along the inside of the sleeve 32. In the process of movement, the top rod 34 drives the rotating plate 37 and the top block 38 to move upward synchronously through the adjusting rod 36. After the top block 38 moves by a distance, the operator rotates the adjusting rod 36 through the rotating plate 37. The adjusting rod 36 is screw transmission connected with the mounting groove 35 on the inner side of the top rod 34. In the process of rotation, the adjusting rod 36 will move along the axis direction of the adjusting rod 36. The top block 38 is moved synchronously by the top rod 34 to drive the rotating plate 37 and the top block 38 to move upward, so that the upper side of the top block 38 is in contact with the lower surface of the air pipe 18. The symmetrically distributed top blocks 38 can lift and support the air pipe 18 on both sides of the connection part of the air pipe 18. The probability of downward deformation of the air pipe 18 during placement can be effectively reduced, so that the two groups of air pipes 18 can maintain a straight line, thereby reducing the risk of changes in the gap between the sealing plates 22. This helps to reduce the detection error of the sealing property of the connection part of the air pipe 18 caused by external force, thereby effectively improving the detection accuracy. By flexibly adjusting the position of the top block 38, the extrusion force between the top block 38 and the air pipe 18 can be maintained within a proper range, thereby supporting the position of the air pipe 18 more accurately. The adjusting rod 36 and the top rod 34 are both provided with scale lines on the outer sides, which can intuitively observe and calculate the movement distance of the top block 38, and help to further improve the adjustment accuracy of the position of the top block 38.

[0026] Specifically, as shown in Figure 1 Figure 3 As shown in Figure 4 The upper side of the guide seat 13 is provided with a detection assembly. The detection assembly comprises a connecting seat 16 fixedly connected with the outer surface of the upper end of the guide seat 13. The upper end of the outer surface of the connecting seat 16 is fixedly connected with a mounting frame 17. The mounting frame 17 is annular. A rotating frame 29 is rotatably connected with the inner side of the mounting frame 17. A laser emitter 30 is fixedly connected with the inner surface of the lower side of the rotating frame 29. A photosensitive plate 45 is arranged on the inner surface of the rotating frame 29 and the laser emitter 30 in a symmetrical position.

[0027] The outer surface of the right end of the connecting seat 16 is fixedly connected with a motor two 21, the output shaft of the motor two 21 penetrates to the left side of the connecting seat 16 and is in rotating contact with the connecting seat 16 through the bearing, the outer surface of the output shaft of the motor two 21 is fixedly connected with a gear 48, the outer surface of the rotating frame 29 is fixedly connected with a tooth block 31, the number of the tooth block 31 is several groups and is arranged in a ring array, the gear 48 penetrates to the inner side of the mounting frame 17 and is in meshing transmission connection with the tooth block 31.

[0028] In order to accurately measure the sealing performance of the connection of the air pipe 18, the detection assembly is arranged, the guide seat 13 is fixedly supported on the mounting frame 17 through the connecting seat 16, the mounting frame 17 is in a circular ring shape, and the air pipe 18 passes through the middle of the mounting frame 17 when placed, the mounting frame 17 rotationally supports the rotating frame 29, the laser emitter 30 on the surface of the mounting frame 17 emits a fan-shaped laser beam to irradiate the connection between the two groups of sealing plates 22, the photosensitive plate 45 symmetrically arranged with the laser emitter 30 inductively receives the laser, the gap between the sealing plates 22 is detected and analyzed through the light spot distribution on the surface of the photosensitive plate 45, when the leakage of the connection of the air pipe 18 is detected, the fluorescent gas is injected into the air pipe 18 through one end of the air pipe 18, and the motor two 21 is started to operate, the gear 48 is synchronously rotated by the output shaft of the motor two 21, the tooth block 31 on the surface of the rotating frame 29 is in meshing transmission connection with the gear 48, the gear 48 drives the rotating frame 29 to rotate in the mounting frame 17 in the process of rotating, the mounting frame 17 drives the laser emitter 30 and the photosensitive plate 45 to do circular motion, and the connection of the air pipe 18 can be scanned in 360 degrees in a ring shape, so that the detection effect of the connection of the air pipe 18 can be further improved, the fluorescent gas in the air pipe 18 is discharged outward from the gap of the sealing plate 22, and the leakage range and position of the fluorescent gas can be directly observed under the irradiation of the laser beam, so that the gap size of the connection of the air pipe 18 can be further detected.

[0029] Specifically, as shown in Figure 5 and Figure 6 The outer surface of the upper end of the bracket 19 is embeddedly provided with a movable groove 39, the inner surface of the movable groove 39 is horizontally slidably connected with a sliding plate 43, the outer surface of the upper end of the sliding plate 43 is fixedly connected with a clamping plate 20, and the clamping plate 20 is in an L-shaped structure.

[0030] The outer surface of the clamping plate 20 close to one side of the air pipe 18 is fixedly connected with an elastic plate 44, the outer surface of the elastic plate 44 is in contact with the air pipe 18, the number of the elastic plate 44 is several groups and is arranged in a parallel array, the elastic plate 44 is made of wear-resistant elastic material, the clamping plate 20 is symmetrically arranged on the front and back sides of the air pipe 18, the inner side of the movable groove 39 is slidably connected with a movable block 41, and the outer surface of the upper end of the movable block 41 is in an inclined shape.

[0031] The outer surface of the movable block 41 is fixedly connected with a spring 40 away from the sliding plate 43, one end of the spring 40 away from the movable block 41 is fixedly connected with the inner wall of the movable groove 39, the inner surface of the movable groove 39 is slidably connected with a pressing plate 42, the outer surface of the lower end of the pressing plate 42 is arc-shaped and in sliding contact with the upper surface of the movable block 41, and the outer surface of the upper end of the pressing plate 42 is in contact with the lower surface of the air pipe 18.

[0032] By adopting the above technical scheme, when the sealing performance of the connection of the air pipe 18 is detected, in order to reduce the influence of the accidental movement of the air pipe 18 on the detection accuracy, the clamping assembly is arranged, when the air pipe 18 is placed on the upper side of the bracket 19, the air pipe 18 will be in contact with the upper end of the pressing plate 42, at this time the pressing plate 42 will slide linearly downward in the movable groove 39 under the gravity of the air pipe 18, the pressing plate 42 will press the upper surface of the movable block 41 in the process of movement, the upper surface of the movable block 41 is inclined, and under the action of the pressure, the movable block 41 will be moved in the movable groove 39, when the movable block 41 moves to the side close to the spring 40, the clamping plate 20 will be driven to move synchronously through the sliding plate 43, the elastic plate 44 will be attached to the outer side of the air pipe 18 through the clamping plate 20, and the air pipe 18 is clamped and fixed through the cooperation of the two groups of clamping plates 20 and the elastic plate 44, so that the position of the air pipe 18 remains stable, the clamping plate 20 is L-shaped, the upper side of the clamping plate 20 can limit the air pipe 18 to a certain extent, which helps to reduce the risk of deviation and lifting of the air pipe 18, thereby further improving the detection accuracy of the sealing performance of the connection of the air pipe 18, when the air pipe 18 is taken out and is out of contact with the pressing plate 42, the movable block 41 will move reversely under the action of the elastic force of the spring 40, at this time the movable block 41 will drive the pressing plate 42 to move reversely, so that the pressing plate 42 is reset.

[0033] Specifically, as shown in Figure 3 and Figure 4 The upper side of the base 11 is provided with a displacement assembly, the displacement assembly comprises a guide groove 12 embedded in the upper side of the base 11, a guide seat 13 located in the guide groove 12 and in sliding contact with the guide groove 12, a support seat 14, a motor one 15 fixedly connected with the outer surface of the right end of the support seat 14, a screw rod 46 fixedly connected with the left end of the output shaft of the motor one 15, the screw rod 46 penetrating through the left and right ends of the guide seat 13 and being in screw transmission connection with the guide seat 13, two groups of support seats 14 being fixedly connected with a sliding rod 47, and the guide seat 13 being in sliding contact with the outer surface of the sliding rod 47.

[0034] By adopting the above technical scheme, in order to facilitate the detection of the sealing performance of the weld in the axial direction of the air pipe 18, the laser emitter 30 is aligned with the weld on the surface of the air pipe 18, and then the fluorescent gas is injected into the air pipe 18 again, and at the same time, the motor one 15 is started to move, and the output shaft of the motor one 15 drives the screw rod 46 to rotate synchronously. The guide seat 13 is in screw transmission connection with the screw rod 46, and the guide seat 13 is driven to slide linearly in the guide groove 12 with the rotation of the screw rod 46. The guide seat 13 drives the mounting frame 17 and the rotating frame 29 to move linearly through the connecting seat 16 during the movement, so that the weld on the surface of the air pipe 18 can be uniformly scanned by the laser beam. The sliding rod 47 between the two groups of supporting seats 14 is in sliding connection with the guide seat 13, which can improve the stability of the guide seat 13 during movement to a certain extent.

[0035] Specifically, as shown in Figure 5 and Figure 7 shown, the rotating frame 29 is provided with a cleaning assembly on the inner side, the cleaning assembly comprising a pin shaft one 23 fixedly connected with the outer surface of the rotating frame 29, the pin shaft one 23 being in rotary connection with an oscillating rod 26 on the outer surface, the oscillating rod 26 being in rotary connection with a pin shaft two 25 at the end away from the pin shaft one 23, and the pin shaft two 25 being in rotary connection with a cleaning roller 28 on the outer surface.

[0036] The outer surface of the cleaning roller 28 is in rotary contact with the outer surface of the sealing plate 22, the cleaning roller 28 is made of a brush, and the oscillating rod 26 is fixedly connected with an expansion plate 27 between the rotating frame 29, the expansion plate 27 being in U-shaped structure and made of elastic material.

[0037] By adopting the above technical scheme, the rotating frame 29 rotates and supports the oscillating rod 26 through the pin shaft one 23, the oscillating rod 26 rotates and supports the cleaning roller 28 through the pin shaft two 25 at the end away from the pin shaft one 23, and the expansion plate 27 between the oscillating rod 26 and the rotating frame 29 applies a certain elastic force to the oscillating rod 26. At this time, the oscillating rod 26 will drive the cleaning roller 28 to adhere to the outer side of the sealing plate 22 under the action of the elastic force, and when the rotating frame 29 drives the oscillating rod 26 to do circular motion through the pin shaft one 23, the cleaning roller 28 will always be in contact with the outer side of the sealing plate 22 under the action of the extrusion force of the expansion plate 27. By the rotary contact between the cleaning roller 28 and the outer side of the sealing plate 22, the gap between the two groups of sealing plates 22 can be cleaned, which can effectively reduce the probability of blockage of the gap of the sealing plate 22 caused by impurities, thereby effectively reducing the interference caused by the attachment of impurities in the sealing performance detection process of the air pipe 18, and further effectively improving the detection accuracy of the sealing performance of the connection of the air pipe 18.

[0038] Working principle: the composite air pipe 18 sealing detection device works, first of all, the air pipe 18 both ends are placed on the bracket 19 upper side, the extrusion plate 42 under the action of gravity in the air pipe 18 in the movable groove 39 linear sliding, extrusion plate 42 under the action of pressure will push the movable block 41 in the movable groove 39 moves, movable block 41 through the slide plate 43 drive clamp plate 20 synchronous movement, through two sets of clamp plate 20 cooperate with elastic plate 44 to air pipe 18 clamping fixed, so that the position of the air pipe 18 remains stable, and then the electric push rod 33 drive rod drive the top rod 34 along the sleeve 32 inside up, through the symmetrical distribution of the top block 38 can be in the air pipe 18 connecting place both sides of the air pipe 18 to lift support, can effectively reduce the air pipe 18 in the process of placing down deformation probability, make two sets of air pipe 18 between the gap between the sealing plate 22 keep straight, in turn can reduce the risk of gap between the sealing plate 22 appear change, then the laser emitter 30 on the surface of the mounting frame 17 emits fan-shaped laser beam to the connecting place of two sets of sealing plate 22, and the photosensitive plate 45 arranged symmetrically with the laser emitter 30 inductance receiving laser, through the spot distribution on the surface of the photosensitive plate 45 detects the gap between the sealing plate 22, through the mounting frame 17 drive laser emitter 30 and photosensitive plate 45 do circular motion, can be carried out 360 degree ring scanning to the air pipe 18 connecting place, so as to further improve the detection effect of the air pipe 18 connecting place, the guide seat 13 in the process of movement through the connecting seat 16 drive mounting frame 17 and rotary frame 29 linearly, so as to be able to scan the weld on the surface of the air pipe 18 through the laser beam, when the rotary frame 29 through the pin shaft one 23 drive swing rod 26 do circular motion, the cleaning roller 28 under the action of the expansion plate 27 extrusion will always contact with the outside of the sealing plate 22, through the cleaning roller 28 and the outside of the sealing plate 22 rotating contact can clean the gap between the two sets of sealing plate 22, can effectively reduce the probability of impurities causing the sealing plate 22 gap blockage.

[0039] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A high-precision laser detection device for the sealing dimensions of a double-layer composite duct, comprising a base (11) and a duct (18), wherein a sealing plate (22) is fixedly connected to the outer surface of the duct (18) near the port, and bolts (24) are provided between the two sets of sealing plates (22), characterized in that: The upper side of the base (11) is movably connected with a guide seat (13), and the upper side of the guide seat (13) is provided with a positioning assembly, which comprises a sleeve (32) fixedly connected with the outer surface of the upper end of the guide seat (13), an electric push rod (33) fixedly connected with the inner surface of the sleeve (32), a top rod (34) fixedly connected with the driving rod of the electric push rod (33), an installation groove (35) formed in the outer surface of the upper end of the top rod (34), an adjusting rod (36) in screw transmission connection with the installation groove (35), a rotating plate (37) rotatably connected with the upper end of the adjusting rod (36), and a top block (38) fixedly connected with the outer surface of the upper end of the rotating plate (37), wherein the outer surface of the top block (38) is in contact with the lower side of the air pipe (18).

2. The double-layer composite air pipe sealing size laser high-precision detection device according to claim 1, characterized in that: The top rod (34) is located inside the sleeve (32) and in sliding contact with the inner surface of the sleeve (32), the outer surface of the top block (38) is arc-shaped, and the outer surfaces of the top rod (34) and the adjusting rod (36) are both provided with scale lines.

3. The double-layer composite air pipe sealing size laser high-precision detection device according to claim 2, characterized in that: The upper side of the guide seat (13) is provided with a detection assembly, which comprises a connecting seat (16) fixedly connected with the outer surface of the upper end of the guide seat (13), an installation rack (17) fixedly connected with the outer surface of the upper end of the connecting seat (16), a rotating rack (29) rotatably connected with the inner side of the installation rack (17), a laser emitter (30) fixedly connected with the lower side of the inner surface of the rotating rack (29), and a photosensitive plate (45) arranged at a position symmetrical to the laser emitter (30) with respect to the inner surface of the rotating rack (29).

4. The double-layer composite air pipe sealing size laser high-precision detection device according to claim 3, characterized in that: The outer surface of the right end of the connecting seat (16) is fixedly connected with a second motor (21), the output shaft of the second motor (21) penetrates to the left side of the connecting seat (16) and is in rotating contact with the bearing connecting seat (16), the output shaft of the second motor (21) is fixedly connected with a gear (48), the outer surface of the rotating rack (29) is fixedly connected with a tooth block (31), the number of the tooth blocks (31) is several groups and is arranged in a ring array, and the gear (48) penetrates to the inner side of the installation rack (17) and is in meshing transmission connection with the tooth blocks (31).

5. The double-layer composite air pipe sealing size laser high-precision detection device according to claim 4, characterized in that: The upper side of the base (11) is provided with a clamping assembly, which comprises a supporting seat (14) fixedly connected with the outer surface of the upper end of the base (11), a bracket (19) fixedly connected with the outer surface of the upper end of the supporting seat (14), and the bracket (19) is used for placing the air pipe (18), an active groove (39) is embeddedly formed in the outer surface of the upper end of the bracket (19), a sliding plate (43) is horizontally and slidably connected with the inner surface of the active groove (39), a clamping plate (20) is fixedly connected with the outer surface of the upper end of the sliding plate (43), and the clamping plate (20) is in L-shaped structure.

6. The double-layer composite air pipe sealing size laser high-precision detection device according to claim 5, characterized in that: The outer surface of the clamping plate (20) is fixedly connected with elastic plates (44) near the side of the air pipe (18), the outer surface of the elastic plates (44) is in contact with the air pipe (18), the number of the elastic plates (44) is several groups and is distributed in parallel array, the elastic plates (44) are made of wear-resistant elastic material, the clamping plates (20) are symmetrically distributed on the front and back sides of the air pipe (18), and the inner side of the movable groove (39) is slidably connected with a movable block (41).

7. The double-layer composite air pipe sealing size laser high-precision detection device according to claim 6, characterized in that: The outer surface of the movable block (41) is fixedly connected with a spring (40) away from the sliding plate (43), one end of the spring (40) away from the movable block (41) is fixedly connected with the inner wall of the movable groove (39), and the inner surface of the movable groove (39) is slidably connected with a pressing plate (42) up and down, the outer surface of the lower end of the pressing plate (42) is arc-shaped and in sliding contact with the upper surface of the movable block (41), and the outer surface of the upper end of the pressing plate (42) is in contact with the lower surface of the air pipe (18).

8. The double-layer composite air pipe sealing size laser high-precision detection device according to claim 7, characterized in that: The upper side of the base (11) is provided with a displacement assembly, the displacement assembly comprises a guide groove (12) embedded in the upper side of the base (11), a guide seat (13) located in the guide groove (12) and in sliding contact with the guide groove (12), a support seat (14) fixedly connected with a motor one (15) on the outer surface of the right end, a screw rod (46) fixedly connected with the output shaft left end of the motor one (15), the screw rod (46) penetrating through the left and right ends of the guide seat (13) and being in screw transmission connection with the guide seat (13), and a slide rod (47) fixedly connected between the two support seats (14).

9. The double-layer composite air pipe sealing size laser high-precision detection device according to claim 8, characterized in that: The inner side of the rotating frame (29) is provided with a cleaning assembly, the cleaning assembly comprises a pin shaft one (23) fixedly connected with the outer surface of the rotating frame (29), the outer surface of the pin shaft one (23) is rotatably connected with a swing rod (26), one end of the swing rod (26) away from the pin shaft one (23) is rotatably connected with a pin shaft two (25), and the outer surface of the pin shaft two (25) is rotatably connected with a cleaning roller (28).

10. The device according to claim 9, wherein the device is characterized by: The outer surface of the cleaning roller (28) is in rotary contact with the outer surface of the sealing plate (22), the cleaning roller (28) is made of a brush, and the expansion plate (27) is fixedly connected between the swing rod (26) and the rotating frame (29), the expansion plate (27) is in U-shaped structure and is made of elastic material.

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