Rust removal device for inner wall of metal pipe

Abstract

The utility model discloses a derusting device for the inner wall of a metal pipe, and relates to the technical field of pipeline derusting, the derusting device comprises a sleeve, four groups of telescopic rods are fixedly arranged on the periphery of the sleeve, each group comprises two telescopic rods, the other end of each telescopic rod is fixedly provided with a mounting frame, the mounting frame is arranged to be in an arc shape, and the telescopic rods are fixedly connected with the sleeve. And two first springs are fixedly arranged on the side, away from the telescopic rod, of the interior of the mounting frame, the two first springs are symmetrically arranged along the center line of the mounting frame, and an anti-skid pad is fixedly arranged at the other end of each first spring and is also arranged to be in an arc shape. Compared with an existing common rust removal device, the rust removal device for the inner wall of the metal pipe has the advantages that when the rust removal device is mounted on one side of a pipeline, the peripheral mounting frames are firstly clamped on the pipe wall, and the non-slip mats are propped against the pipe wall through the screws, so that the mounting frames can be fixed on the pipe wall, and the rust removal device can adapt to metal pipes with different pipe diameters; and the adaptive capacity of the device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline rust removal, in particular to a rust removal device for the inner wall of a metal pipe. Background Art

[0002] With the development of industrialization, the chemical industry has developed by leaps and bounds. In these application fields, a large number of metal pipes of different shapes are involved and used. In some reactors, a large number of metal pipes are needed as connectors with external equipment. Long-term use will cause rust and solid particles to adhere inside the metal pipes.

[0003] As the application number is 202010272676.1, the present invention discloses a rust removal and grinding device for the inner wall of a metal tube for a reactor, including a top seat and a base, a turntable is provided at the lower part of the base, the center of the turntable is a threaded inner hole, a rotating rod is provided through the base and the threaded inner hole of the turntable, a grinding column is provided at one end of the rotating rod located in the metal tube, and the upper end of the grinding column has a spherical head; a traction rod is provided through the top seat, and a vertical plate is provided at one end of the traction rod located in the metal tube, a pair of clamping arms are provided on the vertical plate, the middle position of the clamping arm is connected to the vertical plate through a rotating shaft, the lower end of the clamping arm is an arc-shaped clamping head, and a first spring is provided between the upper ends of the clamping arms; an inclined groove is provided on the inner bottom surface of the top seat, and an inclined end in contact with the inclined groove is provided at the upper end of the clamping arm. The present invention can realize rotary descent through the gravity of the grinding column and the cooperation of the rotating rod and the threaded inner hole to grind the inner wall of the metal tube, which is practical and simple. However, the rust removal process of the device is relatively complicated, and it is not convenient to quickly install the device at one end of the pipeline. Moreover, when performing rust removal work, it is not convenient to efficiently grind the inner wall of the pipeline only by relying on the weight of the grinding device itself, and the efficiency of grinding the pipeline alone is low.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a rust removal device for the inner wall of a metal pipe is proposed. Utility Model Content

[0005] The utility model aims to provide a rust removal device for the inner wall of a metal pipe to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rust removal device for the inner wall of a metal pipe, comprising a sleeve, telescopic rods are fixedly arranged around the sleeve, and the telescopic rods are arranged in four groups, with two in each group, and a mounting frame is fixedly arranged on the other end of the telescopic rod, and the mounting frame is arranged in an arc shape, a spring 1 is fixedly arranged on the side of the inside of the mounting frame away from the telescopic rod, and two springs 1 are symmetrically arranged along the center line of the mounting frame, and an anti-skid pad is fixedly arranged on the other end of the spring 1, and the anti-skid pad is also arranged in an arc shape.

[0007] Preferably, the anti-slip pad is slidably connected to the mounting frame, and a screw is meshed on one side of the mounting frame, two screws are symmetrically arranged along the center line of the mounting frame, and the screws are both located on the outside of spring 1, a mounting shaft is slidably arranged in the middle of the sleeve, and a mounting seat is rotatably arranged at the lower end of the mounting shaft, and slots are opened around the mounting seat.

[0008] Preferably, four of the slots are evenly arranged around the center of the mounting seat, a spring 2 is fixedly arranged at the inner lower end of the slot, and a limiting block 1 is arranged at the upper end of the spring 2, the limiting block 1 is also slidably connected to the slot, and the outer upper end of the limiting block 1 is formed as an inclined surface, and a grinding block is arranged below the mounting seat.

[0009] Preferably, the grinding block is also slidably connected to the mounting seat, a spring three is fixedly provided on the inner upper end of the grinding block, and a limit block two is fixedly provided on the other side of the spring three, the limit block two is also slidably connected to the grinding block, and both the limit block two and the limit block one are arranged in an arc shape, the inner upper end of the limit block two is provided with an inclined surface, and a tooth groove is provided on the inner side of the mounting seat close to the mounting axis.

[0010] Preferably, a gear is meshed inside the tooth groove, and the gear is rotatably connected to the mounting shaft. A water guide groove is provided on one side of the mounting shaft close to the mounting seat, and a water dividing plate is provided in the middle of the water guide groove.

[0011] Preferably, the other end of the water diversion plate is fixedly connected to the mounting seat, a pull rod is slidably arranged inside the mounting shaft above the water diversion plate, a sealing gasket 1 is fixedly arranged at the lower end of the pull rod, and a bracket is fixedly arranged at the middle of the end of the pull rod away from the sealing gasket 1.

[0012] Preferably, a sealing ring is provided on the outer side of the bracket, a sliding rod is slidably provided in the middle of the bracket, and a spring four is provided around the sliding rod, the upper and lower ends of the spring four are respectively slidably connected to the sliding rod and the bracket, and a sealing pad two is fixedly provided at the lower end of the sliding rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model is provided with a sleeve, a telescopic rod, a mounting frame, a spring, an anti-skid pad and screws. When the device is installed on one side of a pipe, the mounting frames around are first clamped on the pipe wall, and the anti-skid pad is pressed against the pipe wall by screws, so that the mounting frame can be fixed on the pipe wall, so that the device can adapt to metal pipes of different diameters, thereby improving the adaptability of the device;

[0015] 2. The utility model is provided with the installation shaft, the installation seat, the slot, the second spring, the first limit block, the grinding block, the third spring, the second limit block, the tooth groove and the gear. When the pipeline is derusted, the grinding block of the corresponding size is first pushed into the installation seat. As the grinding block enters, the second limit block inside it will lift the first limit block under the action of the third spring, so that it is away from the second spring. In this way, the grinding block can be fixed on the lower side of the installation seat, and then the installed installation shaft is inserted into the sleeve. Finally, the installation seat and the grinding block are driven to rotate by the cooperation of the gear and the tooth groove. In this way, the pipe wall can be better polished and the working efficiency of the device can be accelerated.

[0016] 3. The utility model, through the arrangement of the water guide groove, the water dividing plate, the pull rod, the sealing gasket 1, the bracket, the sliding rod, the spring 4 and the sealing gasket 2, when grinding the pipe wall, if the rust inside the pipe wall is relatively stubborn, the external rust remover can be connected to the end of the pull rod through a hose. After the device is working, the external rust remover is sucked into the installation shaft by repeatedly pulling the pull rod interface, and is sprinkled to the surrounding pipe walls through the water guide groove by the water dividing plate, so as to better deal with the rust stains inside the pipe wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the fixing device of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the installation shaft of the utility model;

[0020] Figure 4 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0021] Figure 5 This is a schematic cross-sectional view of the driving device of the utility model;

[0022] Figure 6 For this utility model Figure 3 Enlarged structural diagram at B in the middle.

[0023] In the figure: 1. sleeve; 2. telescopic rod; 3. mounting bracket; 4. spring 1; 5. anti-skid pad; 6. screw; 7. mounting shaft; 8. mounting seat; 9. slot; 10. spring 2; 11. limit block 1; 12. grinding block; 13. spring 3; 14. limit block 2; 15. tooth groove; 16. gear; 17. water guide groove; 18. water distribution plate; 19. pull rod; 20. sealing pad 1; 21. bracket; 22. slide rod; 23. spring 4; 24. sealing pad 2. DETAILED DESCRIPTION

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

[0025] like Figure 1-Figure 2 As shown, a rust removal device for the inner wall of a metal pipe comprises a sleeve 1, a telescopic rod 2 is fixedly arranged around the sleeve 1, and the telescopic rod 2 is arranged in four groups, two in each group, a mounting frame 3 is fixedly arranged on the other end of the telescopic rod 2, and the mounting frame 3 is arranged in an arc shape, a spring 1 4 is fixedly arranged on the side of the mounting frame 3 away from the telescopic rod 2, and two springs 1 4 are symmetrically arranged along the center line of the mounting frame 3, an anti-skid pad 5 is fixedly arranged on the other end of the spring 1 4, and the anti-skid pad 5 is also arranged in an arc shape, when the device is installed on one side of the pipeline, the mounting frames 3 around are first clamped on the pipe wall, and the anti-skid pad 5 is pressed against the pipe wall by screws 6, so that the mounting frame 3 can be fixed on the pipe wall, so that the device can adapt to metal pipes of different diameters, thereby improving the adaptability of the device;

[0026] Furthermore, the telescopic rod 2 can not only enable the device to adapt to metal pipes of different diameters, but also reduce the vibration generated by the device when the device is working.

[0027] like Figure 3-Figure 6As shown, the anti-skid pad 5 is slidably connected to the mounting frame 3 at the same time, and a screw 6 is meshed on one side of the mounting frame 3. Two screws 6 are symmetrically arranged along the center line of the mounting frame 3, and the screws 6 are both located on the outside of the spring 1 4. A mounting shaft 7 is slidably arranged in the middle of the sleeve 1, and a mounting seat 8 is rotatably arranged at the lower end of the mounting shaft 7. A card slot 9 is provided around the mounting seat 8, and four card slots 9 are evenly provided around the center of the mounting seat 8. A spring 2 10 is fixedly provided at the lower end of the inner part of the card slot 9, and a limit block 11 is provided at the upper end of the spring 2 10. The limit block 11 is slidably connected to the card slot 9 at the same time, and the upper end of the outer side of the limit block 11 is provided with an inclined surface. A grinding block 12 is provided below the mounting seat 8. The grinding block 12 is also slidably connected to the mounting seat 8, a spring three 13 is fixedly provided on the inner upper end of the grinding block 12, and a limit block two 14 is fixedly provided on the other side of the spring three 13, the limit block two 14 is also slidably connected to the grinding block 12, and the limit block two 14 and the limit block one 11 are both arranged in an arc shape, and the inner upper end of the limit block two 14 is provided with an inclined surface, a tooth groove 15 is provided on the inner side of the mounting seat 8 close to the mounting shaft 7, and a gear 16 is provided in the inner meshing of the tooth groove 15, and the gear 16 is also rotatably connected to the mounting shaft 7, a water guide groove 17 is provided on the inner side of the mounting shaft 7 close to the mounting seat 8, and a water diversion plate 18 is provided in the middle of the water guide groove 17, and the other end of the water diversion plate 18 is fixedly connected to the mounting seat 8 , a pull rod 19 is slidably provided inside the installation shaft 7 above the water dividing plate 18, and a sealing gasket 20 is fixedly provided at the lower end of the pull rod 19, a bracket 21 is fixedly provided at the middle of the end of the pull rod 19 away from the sealing gasket 20, a sealing ring is provided on the outside of the bracket 21, a sliding rod 22 is slidably provided in the middle of the bracket 21, and a spring four 23 is provided around the sliding rod 22, and the upper and lower ends of the spring four 23 are slidably connected with the sliding rod 22 and the bracket 21 respectively, and a sealing gasket two 24 is fixedly provided at the lower end of the sliding rod 22. When derusting the pipeline, first push the grinding block 12 of the corresponding size into the mounting seat 8. As the grinding block 12 enters, the limit block two 14 inside it will be under the action of the spring three 13. Lift the limit block 11 and keep it away from the spring 2 10 so that the grinding block 12 can be fixed on the lower side of the mounting seat 8. Then, insert the installed mounting shaft 7 into the sleeve 1. Finally, the mounting seat 8 and the grinding block 12 are driven to rotate by the cooperation of the gear 16 and the tooth groove 15. This can better grind the pipe wall and speed up the working efficiency of the device. When grinding the pipe wall, if the rust inside the pipe wall is relatively stubborn, the external rust remover can be connected to the end of the pull rod 19 through a hose. After the device is working, the external rust remover is repeatedly pulled and pulled through the pull rod 19 interface to suck the external rust remover into the mounting shaft 7, and is sprinkled to the surrounding pipe walls through the water guide groove 17 by the water distribution plate 18, so as to better deal with the rust stains on the pipe wall.

[0028] Furthermore, when one end of the pull rod 19 outside the sleeve 1 is facing upward, the rust remover can be directly poured in without pulling the pull rod 19, and under the action of gravity, the sealing gasket 24 is away from the bracket 21 to facilitate the entry of the rust remover.

[0029] Furthermore, when one end of the pull rod 19 is located outside the sleeve 1 and faces downward, the sealing gasket 24 will be pushed open by the water pressure of the rust remover, and the rust remover can be prevented from flowing back under the action of the sealing gasket 24 and the spring 4 23. When a certain amount of rust remover enters, the pull rod 19 is pulled to make the rust remover rush to the water dividing plate 18. In this way, the amount of rust remover used can be flexibly controlled manually to avoid waste of rust remover.

[0030] Working principle: when using the rust removal device for the inner wall of a metal pipe, first, when installing the device on one side of the pipe, first clamp the mounting frames 3 around the pipe wall, and use screws 6 to push the anti-skid pads 5 against the pipe wall, so that the mounting frames 3 can be fixed on the pipe wall, so that the device can adapt to metal pipes of different diameters, thereby improving the adaptability of the device; secondly, when removing rust from the pipe, first push the grinding block 12 of the corresponding size into the mounting seat 8, as the grinding block 12 enters, the limit block 14 inside it will push up the limit block 11 under the action of the spring 13, so that it is away from the spring 10, so that the grinding block 12 can be removed. The block 12 is fixed on the lower side of the mounting seat 8, and then the installed mounting shaft 7 is inserted into the sleeve 1, and finally the mounting seat 8 and the grinding block 12 are driven to rotate by the cooperation of the gear 16 and the tooth groove 15, so that the pipe wall can be polished better and the working efficiency of the device can be accelerated; finally, when polishing the pipe wall, if the rust inside the pipe wall is relatively stubborn, the external rust remover can be connected to the end of the pull rod 19 through a hose. After the device is working, the external rust remover is repeatedly pulled and pulled through the pull rod 19 interface to absorb the external rust remover into the mounting shaft 7, and is sprinkled to the surrounding pipe walls through the water guide groove 17 by the water distribution plate 18, so that the rust stains in the pipe wall can be better treated. This is the working principle of the rust removal device for the inner wall of the metal pipe.

Claims

1. A rust removal device for the inner wall of a metal pipe, comprising a sleeve (1), characterized in that: The sleeve (1) is fixedly provided with telescopic rods (2) around its periphery, and the telescopic rods (2) are provided in four groups, with two in each group; a mounting frame (3) is fixedly provided at the other end of the telescopic rod (2), and the mounting frame (3) is arranged in an arc shape; a spring (4) is fixedly provided at a side of the mounting frame (3) away from the telescopic rod (2), and two springs (4) are symmetrically arranged along the center line of the mounting frame (3); an anti-skid pad (5) is fixedly provided at the other end of the spring (4), and the anti-skid pad (5) is also arranged in an arc shape.

2. A rust removal device for the inner wall of a metal pipe according to claim 1, characterized in that: The anti-skid pad (5) is slidably connected to the mounting frame (3), and a screw (6) is meshedly arranged on one side of the mounting frame (3). Two screws (6) are symmetrically arranged along the center line of the mounting frame (3), and the screws (6) are both located on the outside of the spring 1 (4). A mounting shaft (7) is slidably arranged in the middle of the sleeve (1), and a mounting seat (8) is rotatably arranged at the lower end of the mounting shaft (7), and a card slot (9) is opened around the mounting seat (8).

3. A rust removal device for the inner wall of a metal pipe according to claim 2, characterized in that: Four of the clamping grooves (9) are evenly arranged around the center of the mounting seat (8); a second spring (10) is fixedly arranged at the lower end of the inner part of the clamping groove (9); a limiting block (11) is arranged at the upper end of the second spring (10); the limiting block (11) is slidably connected to the clamping groove (9); and the outer upper end of the limiting block (11) is arranged as an inclined surface; and a grinding block (12) is arranged below the mounting seat (8).

4. A rust removal device for the inner wall of a metal pipe according to claim 3, characterized in that: The grinding block (12) is also slidably connected to the mounting seat (8); a spring three (13) is fixedly arranged on the inner upper end of the grinding block (12); and a limit block two (14) is fixedly arranged on the other side of the spring three (13); the limit block two (14) is also slidably connected to the grinding block (12); the limit block two (14) and the limit block one (11) are both arranged in an arc shape; the inner upper end of the limit block two (14) is provided with an inclined surface; and a tooth groove (15) is provided on the inner side of the mounting seat (8) near the mounting shaft (7).

5. A rust removal device for the inner wall of a metal pipe according to claim 4, characterized in that: A gear (16) is meshed inside the tooth groove (15), and the gear (16) is rotatably connected to the mounting shaft (7). A water guide groove (17) is provided on one side of the mounting shaft (7) close to the mounting seat (8), and a water dividing plate (18) is provided in the middle of the water guide groove (17).

6. A rust removal device for the inner wall of a metal pipe according to claim 5, characterized in that: The other end of the water dividing plate (18) is fixedly connected to the mounting seat (8), a pull rod (19) is slidably arranged inside the mounting shaft (7) above the water dividing plate (18), and a sealing gasket (20) is fixedly arranged at the lower end of the pull rod (19), and a bracket (21) is fixedly arranged in the middle of one end of the pull rod (19) away from the sealing gasket (20).

7. A rust removal device for the inner wall of a metal pipe according to claim 6, characterized in that: A sealing ring is arranged on the outer side of the bracket (21), a sliding rod (22) is slidably arranged in the middle of the bracket (21), and a spring four (23) is arranged around the sliding rod (22), the upper and lower ends of the spring four (23) are respectively slidably connected to the sliding rod (22) and the bracket (21), and a sealing pad two (24) is fixedly arranged at the lower end of the sliding rod (22).

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