Anti-rust paint spraying equipment for inner hole of metal pipe

Abstract

The invention discloses metal pipe inner hole rust-proof paint spraying equipment which comprises a fixed bottom plate and limiting mechanisms, a pair of transmission grooves are formed in the fixed bottom plate and symmetrically arranged, a plurality of limiting ring grooves are formed in the top of the fixed bottom plate and located between the transmission grooves, and the limiting mechanisms are arranged at the two ends of the fixed bottom plate correspondingly. The limiting mechanism on one side is movably arranged in the transmission groove, and the limiting mechanism on the other side is clamped to the top of the fixed bottom plate. Compared with the prior art, an air extractor starts to operate, an air pressure block shrinks, limiting force borne by a limiting rod disappears, the limiting rod can abut against the inner wall of the metal pipe under the action of a compression plate, and in the pushing process of a telescopic rod, an air pressure ball and the inner wall of the metal pipe can extrude each other to push a movable inserting plate to deform; and the friction shaft can be driven to abut against the inner wall of the metal pipe, the inner wall is rapidly polished along with circular motion, and the influence of an oxide layer on subsequent paint spraying machining quality is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline painting processing, and specifically to an anti-rust spraying device for the inner hole of a metal pipe. Background Technique

[0002] Sewage treatment is a process of purifying sewage to meet the water quality requirements for discharging into a certain water body or reusing it. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, and catering, and is also increasingly entering the daily lives of ordinary people.

[0003] Sewage pipes are generally made of metal, so multiple layers of anti-corrosion coatings often need to be sprayed on the inner wall to avoid corrosion and rusting during subsequent use. However, when spraying the inner wall of the pipe, the inner wall of the metal pipe needs to be polished multiple times to avoid the formation of an oxide layer on the inner wall during long-term storage, which may cause the anti-corrosion paint layer to peel off during use and affect the service life of the pipe. For this reason, we propose an anti-rust spraying device for the inner hole of a metal pipe to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide an anti-rust spraying device for the inner hole of a metal pipe to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An anti-rust spraying device for the inner hole of a metal pipe, including,

[0006] A fixed bottom plate, the fixed bottom plate is provided with a pair of transmission grooves, the transmission grooves are symmetrically arranged, and the top of the fixed bottom plate is provided with a plurality of limit ring grooves, and the limit ring grooves are located between the transmission grooves;

[0007] A limit mechanism, the limit mechanism is respectively arranged at both ends of the fixed bottom plate, one side of the limit mechanism is movably arranged inside the transmission groove, and the other side of the limit mechanism is clamped on the top of the fixed bottom plate;

[0008] A transmission and spraying mechanism, the transmission and spraying mechanism is arranged on the top of the fixed bottom plate, the transmission and spraying mechanism includes a fixed vertical plate, a telescopic rod, and a limit ring. The fixed vertical plate is installed on the surface of the fixed bottom plate, a fixed motor is installed on the fixed vertical plate, the telescopic rod is installed on the output end of the fixed motor, the limit ring is clamped on the telescopic rod, and a transmission ring is rotatably arranged inside the limit ring, and the transmission ring is communicated with an external paint output device;

[0009] A grinding and rust-removing mechanism is provided at one end of the telescopic rod. The grinding and rust-removing mechanism is used for quickly grinding the inner wall of the metal pipe. When it is necessary to paint and anticorrosive the inner wall of the metal pipe, the metal pipe can be quickly limited by means of the limiting mechanism. And with the operation of the grinding and rust-removing mechanism and the transmission and painting mechanism, the oxide layer on the inner wall of the metal pipe can be quickly ground, avoiding affecting the subsequent painting treatment of the inner wall of the pipe.

[0010] Preferably, the limiting mechanism includes a movable plate. A pair of fixed sliding rails are fixedly connected to the top of the movable plate, and a transmission block is movably arranged inside the fixed sliding rails. The transmission blocks are symmetrically arranged. Clamping blocks are fixedly connected to the inner walls of the transmission blocks, and rubber gaskets are fixedly connected to the clamping blocks;

[0011] A rectangular groove is formed on the surface of the movable plate, and a fixed insertion plate is movably clamped inside the rectangular groove. A straight pipe is fixedly connected to the bottom of the fixed insertion plate, and the size of the straight pipe corresponds to the limit ring groove. The fixed insertion plate is used to limit one side of the movable plate. When limiting the metal pipe, the position of one side of the movable plate can be adjusted, so as to quickly adjust for metal pipes of different lengths.

[0012] Preferably, the transmission and painting mechanism further includes a transmission pipe and a tapered pipe. A limit circular groove is formed at one end of the limit ring. One end of the transmission pipe is clamped inside the limit ring. A plurality of hinge grooves are formed on the surface of the telescopic rod, and a hinge shaft is rotatably arranged inside the hinge grooves. A compression spring is fixedly connected to the bottom of the inner wall of the hinge shaft, and the other end of the compression spring is clamped inside the hinge groove. One end of the hinge shaft is fixedly connected to a compression ball, and the compression ball is fixedly connected to the transmission pipe. A compression ring is sleeved outside the transmission pipe, and the compression ring can be disassembled;

[0013] The tapered pipe is installed on the telescopic rod. The tapered pipe is used to limit the transmission pipe. A plurality of rotating balls are rotatably arranged on the side wall of the tapered pipe. When the hinge shaft rotates and presses against the inner wall of the metal pipe by the force of the compression spring, the transmission pipe can be pulled to move, and the spraying block can be pressed against the inner wall of the metal pipe, avoiding quickly painting the inner wall of the metal pipe.

[0014] Preferably, a plurality of fixed grooves are formed on the surface of the tapered pipe, and a clamping connection pipe is clamped inside the fixed grooves. The cross-section of the clamping connection pipe is arc-shaped. A plurality of limiting pipes are fixedly connected to the inner wall of the clamping connection pipe. A plurality of semi-circular grooves are formed on the surface of the limiting pipes. A sponge shaft is clamped between the limiting pipes. Paint can be conducted from inside the semi-circular grooves to the inside of the sponge shaft, avoiding the situation of remaining on the surface of the compression pipe.

[0015] Preferably, a plurality of spraying blocks are fixedly connected to the surface of the transmission pipe. The spraying blocks communicate with the transmission pipe and a grid plate is installed on the surface. The position of the spraying block corresponds to the limiting pipe. After painting is completed, the hinge shaft can be reset. During the reset process of the transmission pipe, the spraying block can be squeezed with the limiting pipe, and the excess paint on the surface can be adsorbed on the sponge shaft.

[0016] Preferably, the grinding and rust-removing mechanism includes a dust suction pipe and a connecting plate. The dust suction pipe is clamped at one end of the telescopic rod. A plurality of connecting grooves are formed on the side wall of the dust suction pipe. An activity insertion plate is movably inserted into the connecting groove. One end of the activity insertion plate penetrates through the dust suction pipe. The connecting plate is installed at one end of the activity insertion plate. A plurality of friction shafts are fixedly connected to the outer wall of the activity insertion plate. The friction shafts are arc-shaped and are arranged in a uniform array on the outside of the dust suction pipe. A plurality of dust suction grooves are formed on the surface of the dust suction pipe. The dust suction grooves are arranged between the connecting grooves. By the operation of the air extractor, the metal chips generated by grinding can be quickly accumulated in the collecting pipe along the dust suction grooves, and the metal chips can be clamped in the gap by means of the dust suction plate.

[0017] Preferably, an air extractor is installed on the surface of the connecting plate. A separation pipe is installed at the output end of the air extractor. The separation pipe is made of grid material and is conical. A collecting pipe is arranged outside the separation pipe. The collecting pipe is clamped inside the dust suction pipe. The cross section of the collecting pipe is "U"-shaped. Elastic shafts are fixedly connected between the collecting pipes. A plurality of dust suction plates are installed between the inner walls of the collecting pipes;

[0018] An installation groove is formed on the connecting plate, and a pressure plate is fixedly connected to the inner wall of the installation groove. The pressure plate penetrates through the air extractor. A plurality of limiting plates are arranged outside the connecting plate. One end of the limiting plate is fixedly connected to a compression plate, and one end of the compression plate is fixedly connected to the inner wall of the installation groove. The limiting plate is clamped between the pressure plates. An air pressure ball is fixedly connected to the limiting plate. When the air extractor starts to operate, the air pressure block contracts, and the limiting force on the limiting rod disappears. It can abut against the inner wall of the metal pipe under the action of the compression plate. During the pushing process of the telescopic rod, the air pressure ball can be squeezed with the inner wall of the metal pipe, pushing the activity insertion plate to deform, and driving the friction shaft to abut against the inner wall of the metal pipe, so as to process the oxide layer on the inner wall.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. In the present invention, when the air extractor starts to operate, the air pressure block contracts, and the limiting force on the limiting rod disappears. It can abut against the inner wall of the metal pipe under the action of the compression plate. During the pushing process of the telescopic rod, the air pressure ball can be squeezed with the inner wall of the metal pipe, pushing the activity insertion plate to deform, and driving the friction shaft to abut against the inner wall of the metal pipe. With the circular motion, the inner wall is quickly ground and processed, reducing the influence of the oxide layer on the subsequent painting processing quality;

[0021] 2. When the present invention limits the metal tube, it can adjust the position of the movable plate on one side, so as to quickly adjust for metal tubes of different lengths and sizes, avoid the situation that the excessive unclamped part of the metal tube shakes during the painting and grinding process, ensure the stability of equipment processing, and avoid excessive grinding;

[0022] 3. When the air extractor of the present invention operates, it can quickly accumulate the metal chips generated by grinding along the dust suction groove inside the collecting pipe, and use the dust suction plate to block the metal chips and the like inside the gap, which is convenient for subsequent unified treatment;

[0023] 4. When the hinge shaft rotates in the present invention, it can push against the inner wall of the metal tube by the force of the compression spring, pull the transmission pipe to move, and press the spraying block against the inner wall of the metal tube, so as to quickly paint the inner wall of the metal tube and avoid omission;

[0024] 5. After the painting is completed in the present invention, the hinge shaft can be reset. During the reset process of the transmission pipe, the spraying block can be squeezed between the limiting pipe, and the excess paint and the like on the surface can be adsorbed on the sponge shaft, avoiding the situation of dry knot and blockage caused by long-term use. Subsequently, directly replacing the sponge shaft can improve the maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 is a schematic diagram of the structure of the transmission and painting mechanism of the present invention;

[0027] Figure 3 is a schematic diagram of one end structure of the telescopic rod of the present invention;

[0028] Figure 4 is a schematic diagram of the conical tube of the present invention;

[0029] Figure 5 is the present invention Figure 4 is a schematic diagram of the partial enlarged structure at A in the present invention;

[0030] Figure 6 is a schematic diagram of the dust suction pipe of the present invention;

[0031] Figure 7 is a schematic diagram of the internal structure of the collecting pipe of the present invention;

[0032] In the figure: 1. Fixed bottom plate; 2. Limiting mechanism; 3. Transmission and painting mechanism; 4. Grinding and rust removal mechanism; 11. Limiting ring groove; 12. Transmission groove; 21. Movable plate; 22. Fixed plug board; 23. Transmission block; 31. Fixed vertical plate; 32. Telescopic rod; 321. Limiting ring; 33. Transmission pipe; 331. Compression ring; 332. Spraying block; 34. Conical pipe; 341. Fixed groove; 342. Rotating ball; 35. Clamping connection pipe; 351. Sponge shaft; 36. Limiting pipe; 361. Semi-circular groove; 37. Hinge shaft; 371. Compression ball; 38. Compression spring; 41. Dust suction pipe; 411. Connection groove; 42. Movable plug board; 421. Friction shaft; 43. Connection plate; 431. Air extractor; 44. Separation pipe; 45. Limiting plate; 451. Air pressure ball; 46. Dust suction groove; 47. Collection pipe; 471. Dust suction plate; 48. Elastic shaft. Detailed implementation mode

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to Figure 1-7 , the present invention provides a technical solution: an anti-rust painting device for the inner hole of a metal pipe, including

[0035] A fixed bottom plate 1, the fixed bottom plate 1 is provided with a pair of transmission grooves 12, the transmission grooves 12 are symmetrically arranged, and the top of the fixed bottom plate 1 is provided with a plurality of limiting ring grooves 11, and the limiting ring grooves 11 are located between the transmission grooves 12;

[0036] A limiting mechanism 2, the limiting mechanisms 2 are respectively arranged at both ends of the fixed bottom plate 1, one side of the limiting mechanism 2 is movably arranged inside the transmission groove 12, and the other side of the limiting mechanism 2 is clamped on the top of the fixed bottom plate 1;

[0037] A transmission and painting mechanism 3, the transmission and painting mechanism 3 is arranged on the top of the fixed bottom plate 1, the transmission and painting mechanism 3 includes a fixed vertical plate 31, a telescopic rod 32, and a limiting ring 321. The fixed vertical plate 31 is installed on the surface of the fixed bottom plate 1, a fixed motor is installed on the fixed vertical plate 31, the telescopic rod 32 is installed on the output end of the fixed motor, the limiting ring 321 is clamped on the telescopic rod 32, and a transmission ring is rotatably arranged inside the limiting ring 321, and the transmission ring communicates with an external paint output device;

[0038] The grinding and rust-removing mechanism 4 is arranged at one end of the telescopic rod 32. The grinding and rust-removing mechanism 4 is used for quickly grinding the inner wall of the metal pipe. When it is necessary to paint and anticorrode the inner wall of the metal pipe, the limiting mechanism 2 can be used to quickly limit the metal pipe. And with the operation of the grinding and rust-removing mechanism 4 and the transmission and painting mechanism 3, the oxide layer on the inner wall of the metal pipe can be quickly ground, avoiding affecting the subsequent painting treatment of the inner wall of the pipe.

[0039] The limiting mechanism 2 includes a movable plate 21. A pair of fixed slide rails are fixedly connected to the top of the movable plate 21. And a transmission block 23 is movably arranged inside the fixed slide rails. The transmission blocks 23 are symmetrically arranged. Clamping blocks are fixedly connected to the inner walls of the transmission blocks 23. And rubber gaskets are fixedly connected to the clamping blocks.

[0040] A rectangular groove is formed on the surface of the movable plate 21. And a fixed plug 22 is movably clamped inside the rectangular groove. A straight pipe is fixedly connected to the bottom of the fixed plug 22. And the size of the straight pipe corresponds to the limit ring groove 11. The fixed plug 22 is used to limit one side of the movable plate 21. When limiting the metal pipe, the position of one side of the movable plate 21 can be adjusted, so as to quickly adjust for metal pipes of different lengths and sizes. It can avoid the situation that the excessive unclamped part of the metal pipe shakes during the painting and grinding process, ensure the stability of equipment processing, and avoid the situation of excessive grinding.

[0041] The transmission and painting mechanism 3 further includes a transmission pipe 33 and a tapered pipe 34. A limit circular groove is formed at one end of the limit ring 321. One end of the transmission pipe 33 is clamped inside the limit ring 321. A plurality of hinge grooves are formed on the surface of the telescopic rod 32. And a hinge shaft 37 is rotatably arranged inside the hinge groove. A compression spring 38 is fixedly connected to the bottom of the inner wall of the hinge shaft 37. The other end of the compression spring 38 is clamped inside the hinge groove. One end of the hinge shaft 37 is fixedly connected to a compression ball 371. The compression ball 371 is fixedly connected to the transmission pipe 33. A compression ring 331 is clamped outside the transmission pipe 33. The compression ring 331 can be disassembled.

[0042] The tapered pipe 34 is installed on the telescopic rod 32. The tapered pipe 34 is used to limit the transmission pipe 33. A plurality of rotating balls 342 are rotatably arranged on the side wall of the tapered pipe 34. When the hinge shaft 37 rotates and presses against the inner wall of the metal pipe by the force of the compression spring 38, the transmission pipe 33 can be pulled to move, and the spraying block 332 can be pressed against the inner wall of the metal pipe, avoiding missing the quick painting of the inner wall of the metal pipe.

[0043] A plurality of fixing grooves 341 are formed on the surface of the conical tube 34. A clamping connecting tube 35 is clamped inside the fixing groove 341. The cross section of the clamping connecting tube 35 is arc-shaped. A plurality of limiting tubes 36 are fixedly connected to the inner wall of the clamping connecting tube 35. A plurality of semi-circular grooves 361 are formed on the surface of the limiting tube 36. A sponge shaft 351 is clamped between the limiting tubes 36. Paint can be conducted from inside the semi-circular groove 361 to the inside of the sponge shaft 351, avoiding the situation of remaining on the surface of the compression tube 36.

[0044] A plurality of spraying blocks 332 are fixedly connected to the surface of the transmission tube 33. The spraying blocks 332 are in communication with the transmission tube 33 and a grid plate is installed on the surface. The position of the spraying blocks 332 corresponds to that of the limiting tubes 36. After painting is completed, the hinge shaft 37 can be reset. During the reset process of the transmission tube 33, the spraying blocks 332 can be mutually extruded with the limiting tubes 36, and the excess paint and the like on the surface can be adsorbed on the sponge shaft 351, avoiding the situation of caking and blocking caused by long-term use. Subsequently, the sponge shaft 351 is directly replaced, which can improve the maintenance efficiency.

[0045] The grinding and rust-removing mechanism 4 includes a dust suction pipe 41 and a connecting plate 43. The dust suction pipe 41 is clamped at one end of the telescopic rod 32. A plurality of connecting grooves 411 are formed on the side wall of the dust suction pipe 41. An activity plug board 42 is movably inserted into the connecting groove 411. One end of the activity plug board 42 penetrates through the dust suction pipe 41. The connecting plate 43 is installed at one end of the activity plug board 42. A plurality of friction shafts 421 are fixedly connected to the outer wall of the activity plug board 42. The friction shafts 421 are arc-shaped and are uniformly arranged in an array outside the dust suction pipe 41. A plurality of dust suction grooves 46 are formed on the surface of the dust suction pipe 41. The dust suction grooves 46 are arranged between the connecting grooves 411. By the operation of the air extractor 431, the metal debris generated by grinding can be quickly accumulated in the collecting pipe 47 along the dust suction grooves 46, and the metal debris and the like are clamped in the gap by means of the dust suction board 471, which is convenient for subsequent unified treatment.

[0046] An air extractor 431 is installed on the surface of the connecting plate 43. A separation pipe 44 is installed at the output end of the air extractor 431. The separation pipe 44 is made of grid material and is conical. A collecting pipe 47 is arranged outside the separation pipe 44. The collecting pipe 47 is clamped inside the dust suction pipe 41. The cross section of the collecting pipe 47 is "U"-shaped. An elastic shaft 48 is fixedly connected between the collecting pipes 47. A plurality of dust suction boards 471 are installed between the inner walls of the collecting pipes 47;

[0047] The connecting plate 43 is provided with an installation groove, and a pneumatic plate is fixedly connected to the inner wall of the installation groove. The pneumatic plate is penetrated by an air extractor 431. A plurality of limiting plates 45 are arranged outside the connecting plate 43. One end of the limiting plate 45 is fixedly connected to a compression plate, and one end of the compression plate is fixedly connected to the inner wall of the installation groove. The limiting plate 45 is clamped between the pneumatic plates. A pneumatic ball 451 is fixedly connected to the limiting plate 45. When the air extractor 431 starts to operate, the pneumatic block contracts, and the restraining force on the limiting rod 45 disappears. It can be pressed against the inner wall of the metal pipe under the action of the compression plate. During the pushing process of the telescopic rod 32, the pneumatic ball 451 can be mutually extruded with the inner wall of the metal pipe, pushing the movable plug board 42 to deform, and driving the friction shaft 421 to press against the inner wall of the metal pipe. With the circular motion, the inner wall is quickly polished to reduce the influence of the oxide layer on the subsequent painting processing quality.

[0048] Working principle: First, when it is necessary to paint and anticorrosive the inner wall of the metal pipe, the limiting mechanism 2 can be used to quickly limit the metal pipe. With the operation of the grinding and rust removal mechanism 4 and the transmission and painting mechanism 3, the oxide layer on the inner wall of the metal pipe can be quickly ground to avoid affecting the subsequent painting treatment of the inner wall of the pipe. When it is necessary to limit the metal pipe, the position of the movable plate 21 on one side can be adjusted, so as to quickly adjust for metal pipes of different lengths and sizes, and it can avoid the situation that the excess unclamped part of the metal pipe shakes during the painting and grinding process due to the excessive length of the metal pipe, ensuring the stability of the equipment processing and avoiding the situation of excessive grinding.

[0049] Then, when the fixed motor starts to operate, it can drive the telescopic rod 32 to rotate, making the connecting plate 43 move. At the same time, the air extractor 431 starts to operate, causing the pneumatic block to contract, and the restraining force on the limiting rod 45 disappears. It can be pressed against the inner wall of the metal pipe under the action of the compression plate. During the pushing process of the telescopic rod 32, the pneumatic ball 451 can be mutually extruded with the inner wall of the metal pipe, pushing the movable plug board 42 to deform, and driving the friction shaft 421 to press against the inner wall of the metal pipe. With the circular motion, the inner wall is quickly polished to reduce the influence of the oxide layer on the subsequent painting processing quality. And with the operation of the air extractor 431, the metal debris generated by grinding can be quickly accumulated inside the collecting pipe 47 along the dust suction groove 46, and the metal debris can be stuck in the gap by means of the dust suction plate 471, which is convenient for subsequent unified treatment.

[0050] Finally, after the inner wall of the pipeline is polished, the hinge shaft 37 can rotate, and with the force of the compression spring 38 against the inner wall of the metal pipe, the transmission pipe 33 can be pulled to move, and the spraying block 332 can be pressed against the inner wall of the metal pipe, preventing rapid painting on the inner wall of the metal pipe and avoiding omission. After painting, the hinge shaft 37 can be reset. During the reset process of the transmission pipe 33, the spraying block 332 can be squeezed with the limiting pipe 36, and the excess paint on the surface can be adsorbed on the sponge shaft 351, preventing dry blockage caused by long-term use. Subsequently, directly replacing the sponge shaft 351 can improve the maintenance efficiency.

[0051] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-rust painting equipment for inner hole of metal pipe, characterized by: include, A fixed bottom plate (1), the fixed bottom plate (1) being provided with a pair of transmission grooves (12), the transmission grooves (12) being symmetrically arranged, a plurality of limiting ring grooves (11) being provided on the top of the fixed bottom plate (1), the limiting ring grooves (11) being located between the transmission grooves (12); A limiting mechanism (2), the limiting mechanism (2) being respectively arranged at two ends of the fixed bottom plate (1), the limiting mechanism (2) on one side being movably arranged inside the transmission groove (12), and the limiting mechanism (2) on the other side being clamped on the top of the fixed bottom plate (1); A paint transmission mechanism (3), the paint transmission mechanism (3) being arranged on the top of the fixed base plate (1), the paint transmission mechanism (3) comprising a fixed vertical plate (31), a telescopic rod (32), and a limiting ring (321), the fixed vertical plate (31) being mounted on the surface of the fixed base plate (1), a fixed motor being mounted on the fixed vertical plate (31), the telescopic rod (32) being mounted on the output end of the fixed motor, the limiting ring (321) being clamped on the telescopic rod (32), a transmission ring being rotatably arranged inside the limiting ring (321), and the transmission ring being connected to an external paint output device; A grinding and rust removal mechanism (4), wherein the grinding and rust removal mechanism (4) is arranged at one end of the telescopic rod (32), and the grinding and rust removal mechanism (4) is used for quickly grinding the inner wall of the metal pipe.

2. The anti-rust paint spraying equipment for inner hole of metal pipe according to claim 1, characterized in that: The limiting mechanism (2) comprises a movable plate (21), a pair of fixed slide rails are fixedly connected to the top of the movable plate (21), and transmission blocks (23) are movably provided inside the fixed slide rails, the transmission blocks (23) are symmetrically arranged, and clamping blocks are fixedly connected to the inner walls of the transmission blocks (23), and rubber gaskets are fixedly connected to the clamping blocks; A rectangular groove is provided on the surface of the movable plate (21), and a fixed plug plate (22) is movably provided inside the rectangular groove. A straight pipe is fixedly connected to the bottom of the fixed plug plate (22), and the size of the straight pipe corresponds to the limiting ring groove (11). The fixed plug plate (22) is used to limit the movable plate (21) on one side.

3. The anti-rust paint spraying equipment for inner hole of metal pipe according to claim 1, characterized in that: The paint transmission mechanism (3) further comprises a transmission tube (33) and a conical tube (34); a limiting circular groove is provided at one end of the limiting ring (321); one end of the transmission tube (33) is clamped inside the limiting ring (321); a plurality of hinge grooves are provided on the surface of the telescopic rod (32); a hinge shaft (37) is rotatably provided inside the hinge groove; a compression spring (38) is fixedly connected to the bottom of the inner wall of the hinge shaft (37); the other end of the compression spring (38) is clamped inside the hinge groove; a compression ball (371) is fixedly connected to one end of the hinge shaft (37); the compression ball (371) is fixedly connected to the transmission tube (33); a compression ring (331) is clamped on the outer side of the transmission tube (33); and the compression ring (331) is removable; The conical tube (34) is mounted on the telescopic rod (32); the conical tube (34) is used to limit the position of the transmission tube (33); and a plurality of rotating balls (342) are rotatably provided on the side wall of the conical tube (34).

4. The anti-rust paint spraying equipment for inner hole of metal pipe according to claim 3, characterized in that: A plurality of fixing grooves (341) are formed on the surface of the conical tube (34), a clamping tube (35) is clamped inside the fixing groove (341), the clamping tube (35) has an arc-shaped cross section, a plurality of limiting tubes (36) are fixedly connected to the inner wall of the limiting tube (35), a plurality of semicircular grooves (361) are formed on the surface of the limiting tube (36), and a sponge shaft (351) is clamped between the limiting tubes (36).

5. The anti-rust painting equipment for inner hole of metal pipe according to claim 4, characterized in that: A plurality of spray blocks (332) are fixedly connected to the surface of the transmission tube (33); the spray blocks (332) are connected to the transmission tube (33) and a grid plate is installed on the surface; the positions of the spray blocks (332) correspond to the position limiting tube (36).

6. The anti-rust painting equipment for inner hole of metal pipe according to claim 1, characterized in that: The grinding and rust removal mechanism (4) comprises a dust suction pipe (41) and a connecting plate (43). The dust suction pipe (41) is clamped at one end of the telescopic rod (32). A plurality of connecting grooves (411) are provided on the side wall of the dust suction pipe (41). A movable plug plate (42) is movably inserted inside the connecting groove (411). One end of the movable plug plate (42) passes through the dust suction pipe (41). The connecting plate (43) is mounted on one end of the movable plug plate (42). A plurality of friction shafts (421) are fixedly connected to the outer wall of the movable plug plate (42). The friction shafts (421) are arc-shaped and are evenly arranged in an array outside the dust suction pipe (41). A plurality of dust suction grooves (46) are provided on the surface of the dust suction pipe (41). The dust suction grooves (46) are arranged between the connecting grooves (411).

7. The anti-rust paint spraying equipment for inner hole of metal pipe according to claim 6, characterized in that: An air extractor (431) is installed on the surface of the connecting plate (43); a separation tube (44) is installed on the output end of the air extractor (431); the separation tube (44) is made of a mesh material and is conical; a collection tube (47) is provided on the outside of the separation tube (44); the collection tube (47) is clamped inside the dust suction tube (41); the cross section of the collection tube (47) is U-shaped; an elastic shaft (48) is fixedly connected between the collection tubes (47); and a plurality of dust suction plates (471) are installed between the inner walls of the collection tube (47); The connecting plate (43) is provided with a mounting groove, and a gas pressure plate is fixedly connected to the inner wall of the mounting groove, and the gas pressure plate and the air pump (431) are penetrated, and a plurality of limit plates (45) are provided on the outer side of the connecting plate (43), one end of the limit plate (45) is fixedly connected to a compression plate, and one end of the compression plate is fixedly connected to the inner wall of the mounting groove, the limit plate (45) is clamped between the gas pressure plates, and a gas pressure ball (451) is fixedly connected to the limit plate (45).

Images