Sand blasting pipe and highway guardrail surface rust removal device

Abstract

The invention discloses a sand blasting pipe and a highway guardrail surface rust removal device, and relates to the technical field of sand blasting pipes. The sand blasting pipe comprises a sand blasting pipe body, two symmetrically-arranged fixing pipes are fixedly connected to the two ends of the sand blasting pipe body, and a plurality of circular rings arranged in an array mode are fixedly connected to the side wall of the sand blasting pipe body; the side wall of the sand blasting pipe body is provided with a sealing mechanism for blocking and sealing a damaged and leaked part on the surface of the sand blasting pipe body; the sealing mechanism comprises an annular cover arranged on the side wall of the sand blasting pipe body in a sleeving mode, and the annular cover moves through a moving mechanism. According to the sand blasting pipe and the high-speed guardrail surface rust removal device, the surface of the sand blasting pipe body can be conveniently cleaned, meanwhile, concave or convex defects on the surface of the sand blasting pipe body can be conveniently detected, and the using effect and the service life of the sand blasting pipe body are guaranteed; the detection of the damaged and leaked part on the surface of the sandblasting pipe body is facilitated, and the sandblasting pipe body can be automatically and timely blocked and sealed to avoid leakage, so that the sandblasting pipe is safer and more reliable.

Description

Technical Field

[0001] The invention relates to the technical field of sandblasting tubes, in particular to a sandblasting tube and a device for removing rust from the surface of a high-speed guardrail. Background Art

[0002] Special sandblasting devices are usually used to remove rust from the surface of highway guardrails. These devices combine sandblasting technology and automated control to efficiently and evenly remove rust from the surface of the guardrail. The sandblasting hose is an important component in the sandblasting device. The sandblasting hose plays a key role in conveying abrasives in the sandblasting device. It is responsible for conveying abrasives (such as sand particles) from the sandblasting tank to the sandblasting gun, and spraying them onto the surface of the workpiece at high speed. The impact and grinding action of the abrasives remove rust, dirt or coating on the surface. The material and design of the sandblasting hose must be able to withstand the impact of high-pressure liquids and the wear of abrasives. In order to make it easier to bend and pull the pipe during sandblasting, rubber hoses are generally used, which have the characteristics of low quality and easy bending.

[0003] However, when the existing sandblasting tube and highway guardrail surface rust removal device is in use, impurities are easily adhered to the surface of the sandblasting tube, which is inconvenient to clean. At the same time, it is not convenient to detect the concave or convex defects on the surface, which can easily affect the effect and life of its use. In addition, when in use, the rubber pipe will be cracked and worn out due to the long-term influence of the high-pressure particles sprayed by the sandblasting device, which is not safe and reliable. Summary of the invention

[0004] The object of the present invention is to provide a sandblasting tube and a device for removing rust from the surface of a highway guardrail to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sandblasting tube and a device for removing rust from the surface of a highway guardrail, comprising a sandblasting tube body, two symmetrically arranged fixed tubes are fixedly connected to the two ends of the sandblasting tube body, and a plurality of array-arranged circular rings are fixedly connected to the side wall of the sandblasting tube body, and a sealing mechanism is provided on the side wall of the sandblasting tube body for plugging and sealing damaged and leaking parts on the surface of the sandblasting tube body;

[0006] The sealing mechanism includes an annular cover sleeved on the side wall of the sandblasting tube body, and the annular cover is moved by a moving mechanism, the inner side wall of the annular cover is fixedly connected to two symmetrically arranged fixing rings, and the two fixing rings are fixedly connected to the side wall of the sandblasting tube body close to the first rubber ring, two annular liquid storage cavities are formed between the two fixing rings and the annular cover, and each liquid storage cavity is fixedly connected to an annular plate, each liquid storage cavity is fixedly connected to a second rubber ring, and a through hole is opened in the side wall of the annular plate, each liquid storage cavity is connected to a moving ring by a moving mechanism, and a first detection mechanism for detecting the leakage part of the sandblasting tube body is arranged between the two fixing rings, and second detection mechanisms for detecting the surface defects of the sandblasting tube body are arranged at both ends of the annular cover.

[0007] Preferably, the first detection mechanism includes a moving rod inserted between two fixed rings, and the upper end of the moving rod passes through the side wall of the annular cover and is fixedly connected to the first disk, the side wall of the moving rod is sleeved with a first spring, the side wall of the annular cover is fixedly connected to an L-shaped frame, and a distance sensor is fixedly inserted at the top of the L-shaped frame.

[0008] Preferably, the moving mechanism includes two symmetrically arranged guide rods inserted in the side walls of each moving ring, and both ends of the guide rods are fixed to the side walls of the liquid storage chamber, the side walls of each guide rod are sleeved with a second spring, and the side walls of each fixed ring are inserted with an L-shaped plate, one end of the L-shaped plate is fixed to the end of the moving ring, and the opposite side walls of the two fixed rings are slidably connected with the moving plate, the top of the moving plate is fixedly connected to two symmetrically arranged fixed seats, and the side walls of each fixed seat are rotatably connected to a connecting rod, the upper end of the connecting rod is rotatably connected to the side wall of the L-shaped plate, and the movement of the moving plate is driven by a driving mechanism.

[0009] Preferably, the driving mechanism comprises an iron block fixedly connected to the top of the moving plate, the inner side wall of the annular cover is fixedly connected to a mounting plate, and the bottom of the mounting plate is fixedly connected to an electromagnet.

[0010] Preferably, the second detection mechanism includes two symmetrically arranged fixing plates fixedly connected to the end of the annular cover, and the side wall of each fixing plate is fixedly connected with a mounting ring, the inner side wall of the mounting ring is fixedly connected with a plurality of brushes arranged in an array, and the side wall of the mounting ring is inserted with a plurality of conical rods arranged in an array, the lower end of the conical rod is provided with a ball, and the upper end of the conical rod is fixedly connected with a second disc, the side wall of the conical rod is sleeved with a reset spring, and the movement of the second disc is detected by the detection component.

[0011] Preferably, the detection assembly includes a detection ring, and the detection ring is connected to the side wall of the mounting ring through a reset mechanism, the side wall of the detection ring is provided with a V-shaped groove, and the second disk is inserted in the V-shaped groove, the side wall of the mounting ring is rotatably connected with a pointer through a rotating shaft, and a slide groove is provided on the top of the pointer, the side wall of the detection ring is fixedly connected with a connecting block, and the bottom of the connecting block is fixedly connected with a push rod, the push rod is inserted in the slide groove, and the side wall of the mounting ring is provided with an angle mark, the side wall of the mounting ring is fixedly connected with an L-shaped block, and a visual sensor is fixedly inserted on the top of the L-shaped block.

[0012] Preferably, the reset mechanism includes two symmetrically arranged T-shaped guide rods fixedly connected to the side wall of the detection ring, and the side wall of the T-shaped guide rod is sleeved with a connecting plate, the connecting plate is fixed to the side wall of the mounting ring, and the side wall of each T-shaped guide rod is sleeved with a third spring.

[0013] Preferably, the moving mechanism includes a support ring fixedly connected to the side wall of each fixed tube, and a plurality of pull ropes are inserted into the side wall of each support ring, a plurality of slots are opened on the side wall of each circular ring, and the pull ropes are inserted in the slots, each of the slots is connected with a block through a telescopic mechanism, and the block includes two symmetrically arranged inclined surfaces, one end of the pull rope close to the annular cover is fixed to the inner side wall of the annular cover through a connecting column, and a mounting frame is fixedly connected to the side wall of each fixed tube, the side wall of the mounting frame is fixedly connected to a motor, and the output end of the motor is fixedly connected to a winding roller, the side wall of the fixed tube is fixedly connected to a plurality of guide wheels, the other end of the pull rope is wound around the side wall of the winding roller, and the pull rope slides on the side wall of the guide wheel.

[0014] Preferably, the telescopic mechanism comprises a sliding groove provided on a side wall of the card slot, the card block is inserted into the sliding groove, and two symmetrically arranged fourth springs are fixedly connected between the card block and the sliding groove.

[0015] A device for removing rust from the surface of a high-speed guardrail comprises the sandblasting tube described above.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The sandblasting tube and the high-speed guardrail surface rust removal device are provided with a sealing mechanism and a first detection mechanism, etc. When in use, the motor is started, and the rotation of the motor drives the rotation of the winding roller, so that one of the winding rollers can reel in the pull rope, and the other winding roller can loosen the pull rope, so that the annular cover can be pulled to slide along the side wall of the sandblasting tube body. When the connecting column abuts against the inclined surface, the block can be pushed to retract into the sliding groove. At the same time, the fourth spring is compressed. When the connecting column passes over the block, the block can extend outward under the action of the fourth spring, and the pull rope can be limited, so that the connecting column can pass over the annular ring. At the same time, the first rubber ring can also pass over the annular ring to ensure that the annular cover can pass over the annular ring. When the leakage part is located between the two fixed rings, the pressure between the two fixed rings will increase. At this time, the first disc can be pushed to approach the distance transmission by the moving rod. The first spring is compressed, and the distance sensor is used to detect the distance to the first disc, so as to determine whether the surface of the sandblasting tube body is damaged or leaking. When damage and leakage occur, the motor is stopped, and the electromagnet is energized. After the electromagnet is energized, the iron block is attracted, so that the moving plate moves in the direction close to the mounting plate. When the moving plate moves, the connecting rod can be rotated, and at the same time, the two L-shaped plates are pushed away from each other, and the two moving rings are pushed away from each other. The second spring is compressed. At this time, the liquid temporarily stored in the liquid storage chamber can be squeezed and enters the second rubber ring through the through hole, so that the second rubber ring expands and abuts against the side wall of the sandblasting tube body to form a sealing effect, thereby facilitating timely sealing of the damaged and leaking parts of the sandblasting tube body to avoid leakage. It is safer and more reliable to handle it after the sandblasting is completed.

[0018] (2) The rust removal device for the surface of the sandblasting tube and the high-speed guardrail is provided with a second detection mechanism, etc. When the annular cover moves, the brush and the tapered rod can be driven to move through the fixing plate and the mounting ring, and the brush and the tapered rod can pass over the annular ring. At the same time, the brush can clean the surface of the sandblasting tube body to remove impurities adhering to the surface, making the cleaning more convenient and quick, thereby ensuring the effect and life of the use. At the same time, the ball can roll on the surface of the sandblasting tube body. When a concave or convex defect occurs on the surface of the sandblasting tube body, the tapered rod will move, and at the same time, drive the second disc to slide along the side wall of the V-shaped groove, thereby pushing the detection ring to move in the direction close to the connecting plate, and the third spring is compressed. When the detection ring moves, the push rod can be driven to slide in the slide groove through the connecting block, thereby pushing the pointer to rotate along the rotating shaft. By detecting the change of the angle mark indicated by the pointer through the visual sensor, the size of the concave or convex defect can be determined, and an alarm can be given in time through an external alarm to remind the operator to perform inspection and maintenance, thereby ensuring the effect and life of the use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the overall structure of the present invention from another perspective;

[0021] Figure 3 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 4 for Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0023] Figure 5 for Figure 3 Schematic diagram of the enlarged structure at C in the middle;

[0024] Figure 6 for Figure 4 Schematic diagram of the enlarged structure at D in the middle;

[0025] Figure 7 for Figure 6 Schematic diagram of the enlarged structure at E in the middle;

[0026] Figure 8 for Figure 6 The enlarged structural diagram at F in the middle;

[0027] Fig. 9 for Figure 8 Schematic diagram of the enlarged structure at G in the middle;

[0028] Fig.10 for Fig. 9 Schematic diagram of the enlarged structure at H in the middle.

[0029] In the figure: 1, sandblasting tube body; 201, moving rod; 202, first disc; 203, first spring; 204, L-shaped frame; 205, distance sensor; 301, support ring; 302, pull rope; 303, connecting column; 304, slot; 305, block; 306, inclined plane; 307, mounting frame; 308, motor; 309, winding roller; 310, guide wheel; 401, L-shaped plate; 402, moving plate; 403, fixed seat; 404, connecting rod; 405, guide rod; 406, second spring; 501, iron block; 502, mounting plate; 503, electromagnet; 601, fixing plate; 602, mounting ring; 603, brush; 604, tapered rod; 60 5. Ball; 606. Second disc; 607. Return spring; 701. Slide groove; 702. Fourth spring; 801. Detection ring; 802. V-shaped groove; 803. Rotating shaft; 804. Pointer; 805. Angle mark; 806. L-shaped block; 807. Visual sensor; 808. Connecting block; 809. Slide groove; 810. Push rod; 901. Connecting plate; 902. T-shaped guide rod; 903. Third spring; 11. Circular ring; 12. Fixed tube; 1301. Annular cover; 1302. Fixed ring; 1303. Liquid storage chamber; 1304. Annular plate; 1305. Through hole; 1306. Second rubber ring; 1307. First rubber ring; 1308. Moving ring. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-Figure 10 The present invention provides a technical solution: a sandblasting tube and a device for removing rust from the surface of a highway guardrail, comprising a sandblasting tube body 1, two symmetrically arranged fixed tubes 12 are fixedly connected to the two ends of the sandblasting tube body 1, and a plurality of array-arranged circular rings 11 are fixedly connected to the side wall of the sandblasting tube body 1, and the arrangement of the circular rings 11 can also prevent the sandblasting tube body 1 from being excessively bent, and a sealing mechanism is arranged on the side wall of the sandblasting tube body 1 for plugging and sealing damaged and leaking parts on the surface of the sandblasting tube body 1;

[0032] The sealing mechanism includes an annular cover 1301 sleeved on the side wall of the sandblasting tube body 1, and the annular cover 1301 is moved by a moving mechanism. The inner side wall of the annular cover 1301 is fixedly connected with two symmetrically arranged fixing rings 1302, and the two fixing rings 1302 are fixedly connected with a first rubber ring 1307 near the side wall of the sandblasting tube body 1. Two annular liquid storage cavities 1303 are formed between the two fixing rings 1302 and the annular cover 1301, and each liquid storage cavity 1303 is fixedly connected with an annular plate 1304, and each liquid storage cavity 1303 is fixedly connected with a second rubber ring 1306, and the side wall of the annular plate 1304 is provided with a through hole 1305. Each liquid storage cavity 1303 is connected with a movable ring 1308 through a movable mechanism, and a first detection mechanism for detecting the leakage part of the sandblasting tube body 1 is arranged between the two fixed rings 1302, and second detection mechanisms for detecting surface defects of the sandblasting tube body 1 are arranged at both ends of the annular cover 1301, which is convenient for cleaning the surface of the sandblasting tube body 1, and at the same time, it is convenient to detect the concave or convex defects on the surface of the sandblasting tube body 1 to ensure its use effect and life; it is convenient to detect the damaged leakage part on the surface of the sandblasting tube body 1, and it can automatically and timely seal it to avoid leakage, which is safer and more reliable.

[0033] The first detection mechanism includes a moving rod 201 inserted between the two fixed rings 1302, and the upper end of the moving rod 201 passes through the side wall of the annular cover 1301 and is fixedly connected to the first disc 202, the side wall of the moving rod 201 is sleeved with a first spring 203, the side wall of the annular cover 1301 is fixedly connected to an L-shaped frame 204, and the top of the L-shaped frame 204 is fixedly inserted with a distance sensor 205. When the leakage part is located between the two fixed rings 1302, the pressure between the two fixed rings 1302 will increase. At this time, the moving rod 201 can push the first disc 202 to move in the direction close to the distance sensor 205. At the same time, the first spring 203 is compressed, and the distance to the first disc 202 is detected by the distance sensor 205, so as to determine whether the surface of the sandblasting tube body 1 is damaged and leaking.

[0034] The moving mechanism includes two symmetrically arranged guide rods 405 inserted in the side walls of each moving ring 1308, and the two ends of the guide rods 405 are fixed to the side walls of the liquid storage chamber 1303, and the side walls of each guide rod 405 are sleeved with a second spring 406, and the side walls of each fixed ring 1302 are inserted with an L-shaped plate 401, one end of the L-shaped plate 401 is fixed to the end of the moving ring 1308, and the opposite side walls of the two fixed rings 1302 are slidably connected with the moving plate 402, and the top of the moving plate 402 is fixedly connected to the There are two symmetrically arranged fixed seats 403, and the side walls of each fixed seat 403 are rotatably connected with a connecting rod 404, the upper end of the connecting rod 404 is rotatably connected to the side wall of the L-shaped plate 401, and the movement of the movable plate 402 is driven by a driving mechanism. When damage and leakage occur, the movable plate 402 is moved by the driving mechanism, which can cause the connecting rod 404 to rotate, and at the same time, push the two L-shaped plates 401 to move away from each other, and push the two movable rings 1308 to move away from each other.

[0035] The driving mechanism includes an iron block 501 fixedly connected to the top of the movable plate 402, the inner wall of the annular cover 1301 is fixedly connected to the mounting plate 502, and the bottom of the mounting plate 502 is fixedly connected to the electromagnet 503. When the electromagnet 503 is energized, the electromagnet 503 attracts the iron block 501, so that the movable plate 402 moves toward the direction close to the mounting plate 502.

[0036] The second detection mechanism includes two symmetrically arranged fixing plates 601 fixedly connected to the ends of the annular cover 1301, and the side walls of each fixing plate 601 are fixedly connected with a mounting ring 602, the inner side walls of the mounting ring 602 are fixedly connected with a plurality of brushes 603 arranged in an array, and the side walls of the mounting ring 602 are inserted with a plurality of tapered rods 604 arranged in an array, the lower ends of the tapered rods 604 are provided with balls 605, and the upper ends of the tapered rods 604 are fixedly connected with a second disc 606, the side walls of the tapered rods 604 are sleeved with a reset spring 607, and the movement of the second disc 606 is detected by the detection assembly. When the annular cover 1301 moves, The brush 603 and the tapered rod 604 can be driven to move by the fixing plate 601 and the mounting ring 602. The brush 603 and the tapered rod 604 can pass over the ring 11. At the same time, the brush 603 can clean the surface of the sandblasting tube body 1 to remove impurities adhering to the surface, making the cleaning more convenient and quick, thereby ensuring the use effect and lifespan. At the same time, the ball 605 can roll on the surface of the sandblasting tube body 1. When the surface of the sandblasting tube body 1 has a concave or convex defect, the tapered rod 604 will move. When the tapered rod 604 moves, it drives the second disc 606 to move, and the detection is performed through the detection component.

[0037] The detection assembly includes a detection ring 801, and the detection ring 801 is connected to the side wall of the mounting ring 602 through a reset mechanism, the side wall of the detection ring 801 is provided with a V-shaped groove 802, and the second disc 606 is inserted in the V-shaped groove 802, the side wall of the mounting ring 602 is rotatably connected with a pointer 804 through a rotating shaft 803, and the top of the pointer 804 is provided with a slide groove 809, the side wall of the detection ring 801 is fixedly connected with a connecting block 808, and the bottom of the connecting block 808 is fixedly connected with a push rod 810, and the push rod 810 is inserted in the slide groove 809, and the side wall of the mounting ring 602 is provided with an angle mark 805, and the side wall of the mounting ring 602 is fixedly connected with an L-shaped block 806, and the top of the L-shaped block 806 A visual sensor 807 is fixedly inserted in the part. When the conical rod 604 moves, it drives the second disc 606 to slide along the side wall of the V-shaped groove 802, thereby pushing the detection ring 801 to move. When the detection ring 801 moves, it can drive the push rod 810 to slide in the slide groove 809 through the connecting block 808, thereby pushing the pointer 804 to rotate along the rotating shaft 803. The visual sensor 807 detects the change of the angle mark 805 indicated by the pointer 804, so as to determine the size of the concave or convex defect, and promptly alarms through an external alarm to remind the operator to carry out inspection and maintenance to ensure its use effect and life. An alarm can be set on the rust removal device.

[0038] The reset mechanism includes two symmetrically arranged T-shaped guide rods 902 fixedly connected to the side wall of the detection ring 801, and the side wall of the T-shaped guide rod 902 is sleeved with a connecting plate 901, the connecting plate 901 is fixed to the side wall of the mounting ring 602, and the side wall of each T-shaped guide rod 902 is sleeved with a third spring 903, which guides and resets the movement of the detection ring 801.

[0039] The moving mechanism includes a support ring 301 fixedly connected to the side wall of each fixed tube 12, and a plurality of pull ropes 302 are inserted into the side wall of each support ring 301, a plurality of slots 304 are opened on the side wall of each circular ring 11, and the pull rope 302 is inserted into the slot 304, and a block 305 is connected to each slot 304 through a telescopic mechanism, and the block 305 includes two symmetrically arranged inclined surfaces 306, and one end of the pull rope 302 close to the annular cover 1301 is fixed to the inner side wall of the annular cover 1301 through a connecting column 303, and a mounting frame 307 is fixedly connected to the side wall of each fixed tube 12, and a motor 308 is fixedly connected to the side wall of the mounting frame 307, and a winding roller 309 is fixedly connected to the output end of the motor 308, and a plurality of guide wheels 310 are fixedly connected to the side wall of the fixed tube 12, and the other end of the pull rope 302 is wound around the winding roller The side wall of the guide wheel 309 is moved, and the pull rope 302 slides on the side wall of the guide wheel 310, and the motor 308 is started. The rotation of the motor 308 drives the rotation of the winding rollers 309, so that one of the winding rollers 309 can reel in the pull rope 302, and the other winding roller 309 loosens the pull rope 302, so that the annular cover 1301 can be pulled to slide along the side wall of the sandblasting tube body 1. When the connecting column 303 and the inclined surface 306 are against each other, the block 305 can be pushed to retract into the sliding groove 701. When the connecting column 303 passes over the block 305, the block 305 can extend outward under the action of the telescopic mechanism, and can limit the pull rope 302, so that the connecting column 303 can pass over the ring 11. At the same time, the first rubber ring 1307 can also pass over the ring 11 to ensure that the annular cover 1301 can pass over the ring 11.

[0040] The telescopic mechanism includes a sliding groove 701 opened on the side wall of the card slot 304, the card block 305 is inserted in the sliding groove 701, and two symmetrically arranged fourth springs 702 are fixedly connected between the card block 305 and the sliding groove 701 to guide and reset the movement of the card block 305.

[0041] A device for removing rust from the surface of a high-speed guardrail comprises the above-mentioned sandblasting tube.

[0042] Working principle: When in use, by starting the motor 308, the rotation of the motor 308 drives the rotation of the winding roller 309, so that one of the winding rollers 309 can reel in the pull rope 302, and the other winding roller 309 can loosen the pull rope 302, so that the annular cover 1301 can be pulled to slide along the side wall of the sandblasting tube body 1, and when the connecting column 303 is against the inclined surface 306, the block 305 can be pushed to retract into the sliding groove 701, and at the same time, the fourth spring 702 is compressed. When the connecting column 303 passes over the block 305, the block 305 can extend outward under the action of the fourth spring 702, and the pull rope 302 can be limited, so that the connecting column 303 can pass over the ring 11, and at the same time, the first rubber ring 1307 can also pass over the ring 11, to ensure that the annular cover 1301 can pass over the ring 11.

[0043] When the annular cover 1301 moves, the brush 603 and the tapered rod 604 can be driven to move through the fixed plate 601 and the mounting ring 602. The brush 603 and the tapered rod 604 can pass over the ring 11. At the same time, the brush 603 can clean the surface of the sandblasting tube body 1 to remove impurities adhering to the surface, making cleaning more convenient and quick, thereby ensuring the use effect and lifespan. At the same time, the ball 605 can roll on the surface of the sandblasting tube body 1.

[0044] When a concave or convex defect occurs on the surface of the sandblasting tube body 1, the conical rod 604 will move, and at the same time, drive the second disc 606 to slide along the side wall of the V-shaped groove 802, thereby pushing the detection ring 801 to move in the direction close to the connecting plate 901, and the third spring 903 is compressed. Moreover, when the detection ring 801 moves, it can drive the push rod 810 to slide in the slide groove 809 through the connecting block 808, thereby pushing the pointer 804 to rotate along the rotating shaft 803. The visual sensor 807 detects the change of the angle mark 805 indicated by the pointer 804, and the size of the concave or convex defect can be determined, and an alarm can be issued in time through an external alarm to remind the operator to perform inspection and maintenance to ensure its effectiveness and life.

[0045] When the leakage site is located between the two fixing rings 1302, the pressure between the two fixing rings 1302 will increase. At this time, the first disc 202 can be pushed to move toward the distance sensor 205 by the moving rod 201. At the same time, the first spring 203 is compressed. The distance to the first disc 202 is detected by the distance sensor 205 to determine whether the surface of the sandblasting tube body 1 is damaged or leaking. When damage and leakage occur, the motor 308 is stopped, and at the same time, the electromagnet 503 is energized. After being energized, the electromagnet 503 attracts the iron block 501, so that the movable plate 402 moves in the direction close to the mounting plate 502. When the movable plate 402 moves, the connecting rod 404 can be rotated, and at the same time, the two L-shaped plates 401 are pushed to move away from each other, and the two movable rings 1308 are pushed to move away from each other. The second spring 406 is compressed. At this time, the liquid temporarily stored in the liquid storage chamber 1303 can be squeezed and enter the second rubber ring 1306 through the through hole 1305, so that the second rubber ring 1306 expands and abuts against the side wall of the sandblasting tube body 1 to form a sealing effect, thereby facilitating timely sealing of the damaged and leaking parts of the sandblasting tube body 1 to avoid leakage. It is safer and more reliable to handle it after the sandblasting is completed.

[0046] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0047] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A sandblasting tube, comprising a sandblasting tube body (1), characterized in that: Two symmetrically arranged fixed tubes (12) are fixedly connected to both ends of the sandblasting tube body (1), and a plurality of array-arranged circular rings (11) are fixedly connected to the side wall of the sandblasting tube body (1), and a sealing mechanism is provided on the side wall of the sandblasting tube body (1) for sealing damaged and leaking parts on the surface of the sandblasting tube body (1); The sealing mechanism comprises an annular cover (1301) sleeved on the side wall of the sandblasting tube body (1), and the annular cover (1301) is moved by a moving mechanism, the inner side wall of the annular cover (1301) is fixedly connected with two symmetrically arranged fixing rings (1302), and the two fixing rings (1302) are fixedly connected with a first rubber ring (1307) near the side wall of the sandblasting tube body (1), and two annular liquid storage chambers (1303) are formed between the two fixing rings (1302) and the annular cover (1301), and each liquid storage chamber (1303) is fixedly connected with a first rubber ring (1307). An annular plate (1304) is connected, each of the liquid storage chambers (1303) is fixedly connected to a second rubber ring (1306), and a through hole (1305) is opened on the side wall of the annular plate (1304), each of the liquid storage chambers (1303) is connected to a movable ring (1308) via a movable mechanism, and a first detection mechanism for detecting leakage parts of the sandblasting tube body (1) is arranged between the two fixed rings (1302), and second detection mechanisms for detecting surface defects of the sandblasting tube body (1) are arranged at both ends of the annular cover (1301).

2. A sandblasting tube according to claim 1, characterized in that: The first detection mechanism comprises a moving rod (201) inserted between two fixed rings (1302), and the upper end of the moving rod (201) passes through the side wall of the annular cover (1301) and is fixedly connected to the first disc (202), the side wall of the moving rod (201) is sleeved with a first spring (203), the side wall of the annular cover (1301) is fixedly connected to an L-shaped frame (204), and the top of the L-shaped frame (204) is fixedly inserted with a distance sensor (205).

3. A sandblasting tube according to claim 1, characterized in that: The moving mechanism includes two symmetrically arranged guide rods (405) inserted into the side walls of each moving ring (1308), and both ends of the guide rods (405) are fixed to the side walls of the liquid storage chamber (1303), the side walls of each guide rod (405) are sleeved with a second spring (406), and the side walls of each fixed ring (1302) are inserted with an L-shaped plate (401), one end of the L-shaped plate (401) is fixed to the end of the moving ring (1308), and the moving plates (402) are slidably connected to the opposite side walls of the two fixed rings (1302), the top of the moving plate (402) is fixedly connected to two symmetrically arranged fixed seats (403), and the side walls of each fixed seat (403) are rotatably connected to a connecting rod (404), the upper end of the connecting rod (404) is rotatably connected to the side wall of the L-shaped plate (401), and the movement of the moving plate (402) is driven by a driving mechanism.

4. A sandblasting tube according to claim 3, characterized in that: The driving mechanism comprises an iron block (501) fixedly connected to the top of the moving plate (402), the inner side wall of the annular cover (1301) is fixedly connected to the mounting plate (502), and the bottom of the mounting plate (502) is fixedly connected to the electromagnet (503).

5. A sandblasting tube according to claim 1, characterized in that: The second detection mechanism comprises two symmetrically arranged fixing plates (601) fixedly connected to the ends of the annular cover (1301), and the side walls of each fixing plate (601) are fixedly connected with a mounting ring (602), the inner side wall of the mounting ring (602) is fixedly connected with a plurality of brushes (603) arranged in an array, and the side wall of the mounting ring (602) is inserted with a plurality of conical rods (604) arranged in an array, the lower end of the conical rod (604) is provided with a ball (605), and the upper end of the conical rod (604) is fixedly connected with a second disc (606), the side wall of the conical rod (604) is sleeved with a reset spring (607), and the movement of the second disc (606) is detected by the detection component.

6. A sandblasting tube according to claim 5, characterized in that: The detection assembly comprises a detection ring (801), and the detection ring (801) is connected to the side wall of the mounting ring (602) through a reset mechanism, the side wall of the detection ring (801) is provided with a V-shaped groove (802), and the second disc (606) is inserted in the V-shaped groove (802), the side wall of the mounting ring (602) is rotatably connected to a pointer (804) through a rotating shaft (803), and a sliding groove (809) is provided on the top of the pointer (804), The side wall of the detection ring (801) is fixedly connected to a connecting block (808), and the bottom of the connecting block (808) is fixedly connected to a pushing rod (810), and the pushing rod (810) is inserted into a sliding groove (809), and the side wall of the mounting ring (602) is provided with an angle mark (805), and the side wall of the mounting ring (602) is fixedly connected to an L-shaped block (806), and the top of the L-shaped block (806) is fixedly inserted with a visual sensor (807).

7. A sandblasting tube according to claim 6, characterized in that: The reset mechanism comprises two symmetrically arranged T-shaped guide rods (902) fixedly connected to the side wall of the detection ring (801), and the side wall of the T-shaped guide rod (902) is sleeved with a connecting plate (901), the connecting plate (901) is fixed to the side wall of the mounting ring (602), and the side wall of each T-shaped guide rod (902) is sleeved with a third spring (903).

8. A sandblasting tube according to claim 1, characterized in that: The moving mechanism comprises a support ring (301) fixedly connected to the side wall of each fixed tube (12), and a plurality of pull ropes (302) are inserted into the side wall of each support ring (301), a plurality of slots (304) are opened on the side wall of each circular ring (11), and the pull ropes (302) are inserted into the slots (304), and a block (305) is connected to each slot (304) through a telescopic mechanism, and the block (305) comprises two symmetrically arranged inclined surfaces (306), and one end of the pull rope (302) close to the annular cover (1301) It is fixed to the inner side wall of the annular cover (1301) through a connecting column (303), and the side wall of each fixed tube (12) is fixedly connected to a mounting frame (307), the side wall of the mounting frame (307) is fixedly connected to a motor (308), and the output end of the motor (308) is fixedly connected to a winding roller (309), the side wall of the fixed tube (12) is fixedly connected to a plurality of guide wheels (310), the other end of the pull rope (302) is wound around the side wall of the winding roller (309), and the pull rope (302) slides on the side wall of the guide wheel (310).

9. A sandblasting tube according to claim 8, characterized in that: The telescopic mechanism comprises a sliding groove (701) provided on a side wall of the clamping groove (304), the clamping block (305) is inserted into the sliding groove (701), and two symmetrically arranged fourth springs (702) are fixedly connected between the clamping block (305) and the sliding groove (701).

10. A device for removing rust from the surface of a high-speed guardrail, characterized in that: A sandblasting tube comprising any one of claims 1-9.

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