Stretching type polishing assembly and polishing brush for inner wall of pipeline

Abstract

The invention discloses a pipeline inner wall stretching type grinding assembly and a grinding brush, and relates to the technical field of pipeline inner wall grinding, the pipeline inner wall stretching type grinding assembly comprises a bottom frame, a servo electric cylinder, a servo motor, a grinding wheel, a grinding wheel, a grinding wheel, a grinding wheel, a grinding wheel, a grinding wheel, a grinding wheel, a grinding wheel and a grinding wheel, and the bottom end of the interior of the bottom frame is provided with a bottom table and a cylindrical frame, and the cylindrical frame is fixed to the bottom end of the interior of the bottom frame; the servo electric cylinder is fixed to the top end of the interior of the cylindrical frame, a pressing wheel and an electric frame roller are arranged on the bottom face of the telescopic end of the servo electric cylinder, the electric frame roller is arranged on the lower portion of the interior of the cylindrical frame, the convex frame is fixed to the top of the inner wall of the bottom frame and located on the right side of the bottom table, and a notch and an electric telescopic rod are formed in the top face of the convex frame. The electric telescopic rod penetrates through and is fixed to the left side and the right side of the inner wall of the convex frame, and grinding scraps are shoveled in through a chamfer of the chamfering shell, so that the problem that the inner wall of a pipeline is not thoroughly ground due to the fact that the grinding scraps are accumulated in the pipeline is avoided.

Description

Technical Field

[0001] This invention relates to the field of pipe inner wall grinding technology, specifically to a pipe inner wall extension grinding component and grinding brush. Background Technology

[0002] The main purpose of the pipeline inner wall extension grinding assembly is to grind the inner wall of pipelines (oil and gas, chemical pipelines) to achieve the specified cleanliness and roughness, ensure the effective adhesion of coatings (such as epoxy resin, polyethylene, etc.), reduce corrosion of the inner wall, and significantly improve the safety of pipelines under high pressure.

[0003] Patent CN222308271U discloses a grinding device for the inner wall of a tubular heat exchanger pipe, including a convenient grinding mechanism, an extension mechanism, an observation mechanism, and an adjustment mechanism. The convenient grinding mechanism includes a first electric push rod, one end of which is fixedly connected to a setting plate. The setting plate has a hidden groove inside, and a first motor is fixedly installed inside the hidden groove. This patent, through the setting of the convenient grinding mechanism, and the setting of the adjustment mechanism and the extension mechanism, allows the convenient grinding mechanism to penetrate into the interior of the tubular heat exchanger. The first electric push rod drives the setting plate to move, so that the grinding wheel can contact the inner wall of the tubular heat exchanger. The first motor drives the grinding wheel to rotate and grind the inner wall of the tubular heat exchanger. When grinding the inner wall of the tubular heat exchanger, it is not necessary for the operator to be fixed in one position for a long time, and the operator does not need to penetrate into the tubular heat exchanger, which can prevent accidental injury during the grinding process.

[0004] However, the current tube heat exchanger pipe inner wall grinding device has the following problems: during the grinding process of the extended grinding component, the debris that falls off the grinding brush when grinding the inner wall of the pipe accumulates in the pipe, which leads to the problem of incomplete grinding of the inner wall of the pipe. Therefore, we propose an extended grinding component and grinding brush for the inner wall of the pipe. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a pipe inner wall extension grinding assembly and grinding brush, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pipe inner wall extension grinding assembly, comprising: a base frame, wherein a base platform is provided at the bottom of the base frame; a columnar frame, wherein the columnar frame is fixed at the bottom of the base frame and is located to the left of the base platform; a servo electric cylinder, wherein the servo electric cylinder is fixed at the top of the columnar frame and a pressure roller is provided on the bottom surface of the extension end of the servo electric cylinder; an electric frame roller, wherein the electric frame roller is located at the bottom of the columnar frame; a convex frame, wherein the convex frame is fixed at the top of the inner wall of the base frame and is located to the right of the base platform and a slot is provided on the top surface of the convex frame; and an electric telescopic rod, wherein the electric telescopic rod passes through... A hollow column is fixed to the left side of the telescopic end of the electric telescopic rod, and a grinding brush head is located on the left side of the hollow column. A U-shaped ring frame is fixed to the outer wall of the telescopic end of the electric telescopic rod, and a chamfered shell is fixed to the bottom of the outer wall of the U-shaped ring frame. The hollow column drives the grinding brush head to move to the left, and the grinding brush head grinds the inner wall of the round tube. The hollow column drives the U-shaped ring frame to move to the left, and the U-shaped ring frame drives the chamfered shell to move to the left. During the leftward movement, the chamfered shell contacts the rotating inner wall of the round tube. The chamfered shell is used to scrape the grinding debris into the inner wall of the pipe.

[0007] According to the above technical solution, the pressure roller includes a square plate and rubber rollers. The square plate is fixed to the bottom surface of the telescopic end of the servo electric cylinder, and the rubber rollers are rotatably installed on the bottom surface of the square plate in pairs.

[0008] According to the above technical solution, the electric roller includes: a shaft frame, a rubber roller, a motor, a belt assembly one, and a belt assembly two. The shaft frame is fixed to the bottom inside the base frame. The rubber roller is rotatably mounted on the top of the inner wall of the shaft frame. The motor is fixedly mounted to the bottom inside the shaft frame. The belt assembly one is fixed to the left side of the rotating shaft of the rubber roller. The right side of the belt assembly one is fixedly connected to the left side of the rotating shaft of the motor. The belt assembly one drives the rubber roller through a belt. The belt assembly two is fixed to the right end of the rubber roller.

[0009] According to the above technical solution, the top surface of the base platform is provided with several arc openings, the pressure roller is located above the electric frame roller, and the bottom of the back of the chamfered shell is provided with a chamfer.

[0010] According to the above technical solution, a spraying device is provided on the outer wall of the U-shaped ring frame. The spraying device is used to spray abrasive agent onto the inner wall of the pipe. A wall wiping device is provided on the inner wall of the spraying device. The wall wiping device is used to wipe the inner wall of the pipe.

[0011] According to the above technical solution, the spraying device includes: a U-shaped frame fixed to the outer wall of a U-shaped ring frame; a bent pipe fixedly installed in front of the outer wall of the U-shaped frame; a flexible hose fixedly installed at the right end of the bent pipe, located inside the groove of a convex frame; an electric nozzle fixedly installed at the end of the bent pipe away from the flexible hose; a liquid storage tank fixedly installed at the bottom inside the base frame, located below the convex frame, with an inlet on the top surface of the liquid storage tank; and a suction pump fixed at the bottom inside the liquid storage tank, with its top surface fixedly connected to the end of the flexible hose away from the bent pipe. The U-shaped frame drives the bent pipe to move to the left, the bent pipe drives the electric nozzle to move to the left, the suction pump delivers the abrasive into the flexible hose, the flexible hose delivers the abrasive into the bent pipe, and the bent pipe delivers the abrasive into the electric nozzle. The electric nozzle is used to spray the abrasive onto the inner wall of the pipe.

[0012] According to the above technical solution, a square rod is fixed on the right side of the U-shaped frame. Two circular openings are opened on the outer wall of the square rod. A thin rod is fixed through and fixed on the top surface of the square rod. A ring block is fixed at the top of the thin rod. The ring block is fitted onto the flexible tube. The square rod drives the thin rod to move to the left, and the thin rod drives the ring block to move to the left. The ring block restricts the bending degree of the flexible tube.

[0013] According to the above technical solution, the wall-wiping device includes: a U-shaped rod fixed in the inner wall of the circular opening of a thin rod; a straight ring plate fixed in the middle of the outer wall of the U-shaped rod; a sponge block fixed at the end of the straight ring plate away from the U-shaped rod; and a connecting plate fixed on the front of the sponge block. The front end of the connecting plate is fixedly connected to the back of the U-shaped frame. The U-shaped rod drives the straight ring plate to move to the left, the straight ring plate drives the sponge block to move to the left, and the connecting plate supports the sponge block to move to the left. The sponge block is used to wipe the inner wall of the pipe.

[0014] According to the above technical solution, a horizontal plate is fixedly installed on the top surface of the ring plate and the connecting plate. A housing is fixedly installed through the middle of the top surface of the horizontal plate. A glass window is fixedly installed on the top of the inner wall of the housing. A laser sensor is fixedly installed at the bottom of the inner wall of the housing. The U-shaped rod drives the ring plate to move to the left. The ring plate drives the sponge block to move to the left. The connecting plate supports the sponge block to move to the left. During the leftward movement, the sponge block wipes the inner wall of the round tube. The horizontal plate drives the housing to move to the left. The housing drives the glass window to move to the left. The housing drives the laser sensor to move to the left.

[0015] According to the above technical solution, a pipe polishing brush includes: a concave round shell, sandpaper, and a T-shaped threaded cap. The concave round shell is fixed to the left end of a hollow column. The sandpaper is fixedly installed on the outer wall of the concave round shell. The outer wall of the T-shaped threaded cap has a self-locking threaded groove. The T-shaped threaded cap is rotatably installed on the inner wall of the concave round shell. The T-shaped threaded cap is unscrewed clockwise to remove the sandpaper from the concave round shell. A new sandpaper is then placed on the surface of the concave round shell. Finally, the T-shaped threaded cap is screwed back on counterclockwise into the concave round shell.

[0016] This invention provides a pipe inner wall extension grinding assembly. It has the following beneficial effects: (1) The present invention uses a base frame, a base platform, a column frame, a servo electric cylinder, a pressure roller, an electric frame roller, a convex frame, an electric telescopic rod, a hollow column, a grinding brush head and a U-shaped ring frame in conjunction with a chamfered shell. The hollow column drives the grinding brush head to move to the left, and the grinding brush head grinds the inner wall of the round tube. The hollow column drives the U-shaped ring frame to move to the left, and the U-shaped ring frame drives the chamfered shell to move to the left. During the leftward movement of the chamfered shell, the chamfer of the chamfered shell contacts the inner wall of the rotating round tube, and the chamfer of the chamfered shell scoops in the grinding debris, preventing the grinding debris from accumulating in the pipe and causing incomplete grinding of the inner wall of the pipe.

[0017] (2) The present invention, through the setting of the spraying device, enables the eccentric frame, the bend pipe, the hose, the electric nozzle and the liquid storage tank to work with the suction pump. The eccentric frame drives the bend pipe to move to the left, the bend pipe drives the electric nozzle to move to the left, the suction pump delivers the polishing agent into the hose, the hose delivers the polishing agent into the bend pipe, the bend pipe delivers the polishing agent into the electric nozzle, and the electric nozzle sprays the polishing agent onto the inner wall of the round pipe, preventing the polishing brush head from having a poor polishing effect on the inner wall of the round pipe, resulting in unqualified polishing of the inner wall of the pipe.

[0018] (3) The present invention, through the setting of the spraying device, makes the square rod and the thin rod cooperate with the ring block. The square rod drives the thin rod to move to the left, and the thin rod drives the ring block to move to the left. The ring block restricts the bending degree of the hose and prevents the hose from being excessively bent, causing the hose to be blocked inside.

[0019] (4) The present invention uses a wall-wiping device to make the U-shaped rod, the ring straight plate and the sponge block cooperate with the connecting plate. The U-shaped rod drives the ring straight plate to move to the left, the ring straight plate drives the sponge block to move to the left, and the connecting plate supports the sponge block to move to the left. During the leftward movement, the sponge block wipes the inner wall of the round tube to prevent the inner wall of the round tube from having too much polishing agent and causing too much liquid to accumulate inside the round tube.

[0020] (5) By setting up the wall wiping device, the horizontal plate, the housing and the glass window work together with the laser sensor. The horizontal plate drives the housing to move to the left, the housing drives the glass window to move to the left, and the housing drives the laser sensor to move to the left. The infrared light emitted by the laser sensor irradiates the inner wall of the pipe, which prevents the operator from having a complicated operation when checking the roughness of the inner wall of the pipe, thus resulting in poor equipment performance. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the entire invention; Figure 2 This is a schematic diagram of the entire invention from the left side; Figure 3 This is a schematic diagram of the internal components of the present invention; Figure 4 This is a cross-sectional view of the base frame of the present invention; Figure 5 For the present invention Figure 4 A magnified view of a portion of point A in the middle; Figure 6 This is a cross-sectional view of the grinding brush head of the present invention; Figure 7 This is a schematic diagram of the spraying device of the present invention; Figure 8 For the present invention Figure 7 A magnified view of a portion of point B in the middle; Figure 9 This is a schematic diagram of the wall-rubbing device of the present invention; Figure 10 For the present invention Figure 9 A magnified view of a portion of point C.

[0022] In the diagram: 1. Base frame; 2. Base platform; 3. Column frame; 4. Servo electric cylinder; 5. Pressure roller; 501. Square plate; 502. Rubber roller; 6. Electric frame roller; 601. Shaft frame; 602. Rubber roller; 603. Electric motor; 604. Belt assembly one; 605. Belt assembly two; 7. Convex frame; 8. Electric telescopic rod; 9. Hollow column; 10. Grinding brush head; 101. Concave round shell; 102. Grinding sandpaper; 103. T-shaped threaded cap; 11. U-shaped ring 12. Frame; 13. Chamfered shell; 14. Spraying device; 15. U-shaped frame; 16. Bend; 17. Hose; 18. Electric nozzle; 19. Storage tank; 10. Suction pump; 11. Square rod; 12. Thin rod; 13. Ring block; 14. Wall wiping device; 15. U-shaped rod; 16. Ring straight plate; 17. Sponge block; 18. Connecting plate; 19. Horizontal plate; 10. Housing; 11. Glass window; 12. Laser sensor. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0024] Please see Figures 1-10One embodiment of the present invention is: a pipe inner wall extension grinding assembly, comprising: a base frame 1, a base platform 2 provided at the bottom of the base frame 1, a plurality of arc openings on the top surface of the base platform 2, a column frame 3, the column frame 3 being fixed at the bottom of the base frame 1 and located on the left side of the base platform 2, a servo electric cylinder 4, the servo electric cylinder 4 being fixed at the top of the column frame 3, and a pressure roller 5 provided on the bottom surface of the telescopic end of the servo electric cylinder 4, the pressure roller 5 comprising: a square plate 501 and rubber rollers 502, the square plate 501 being fixed on the bottom surface of the telescopic end of the servo electric cylinder 4, and the rubber rollers 502 being rotatably mounted on the bottom surface of the square plate 501 in pairs; An electric roller 6 is located inside the lower part of the column frame 3. The electric roller 6 includes: a shaft frame 601, a rubber roller 602, a motor 603, a first belt assembly 604, and a second belt assembly 605. The shaft frame 601 is fixed to the bottom inside the base frame 1. The rubber roller 602 is rotatably mounted on the top of the inner wall of the shaft frame 601. The motor 603 is fixedly mounted to the bottom inside the shaft frame 601. The first belt assembly 604 is fixed to the left side of the rotating shaft of the rubber roller 602. The right side of the first belt assembly 604 is fixedly connected to the left side of the rotating shaft of the motor 603. The first belt assembly 604 drives the rubber roller 602 through a belt. The second belt assembly 605 is fixed to the right end of the rubber roller 602. The pressure roller 5 is located above the electric roller 6. A convex frame 7 is fixed to the top of the inner wall of the base frame 1 and is located on the right side of the base platform 2. A slot is provided on the top surface of the convex frame 7. An electric telescopic rod 8 passes through and is fixed to the left and right sides of the inner wall of the convex frame 7. A hollow column 9 is fixed to the left side of the telescopic end of the electric telescopic rod 8. A grinding brush head 10 is located on the left side of the hollow column 9. A U-shaped ring frame 11 is fixed to the outer wall of the telescopic end of the electric telescopic rod 8. A chamfered shell 12 is fixed to the bottom of the outer wall of the U-shaped ring frame 11, and a chamfer is provided on the bottom back of the chamfered shell 12. The chamfered shell 12 is used to scrape grinding debris from the inner wall of the pipe. A pipe polishing brush includes: a concave round shell 101, sandpaper 102, and a T-shaped threaded cap 103. The concave round shell 101 is fixed to the left end of a hollow column 9. The sandpaper 102 is fixedly installed on the outer wall of the concave round shell 101. The outer wall of the T-shaped threaded cap 103 is provided with a self-locking threaded groove. The T-shaped threaded cap 103 is rotatably installed on the inner wall of the concave round shell 101. When using this equipment, the base frame 1 supports the base platform 2. The operator places the round tube above the electric roller 6, and the base platform 2 supports the bottom of the round tube. The operator activates the servo cylinder 4 in the column frame 3. The telescopic end of the servo cylinder 4 moves downward, driving the pressure roller 5 downward. The square plate 501 moves downward, driving the rubber roller 502 downward. The rubber roller 502 contacts the outer wall of the round tube. Simultaneously, the operator activates the motor 603 in the shaft frame 601. The motor 603... The shaft begins to rotate forward. The shaft of motor 603 drives the belt in belt assembly 604 to rotate. Belt assembly 604 drives rubber roller 602, which rotates forward on the shaft bracket 601. The shaft of rubber roller 602 drives belt assembly 605 to rotate, making the rotation of rubber roller 602 more stable. Under the pressure of rubber roller 502, the round tube rotates in reverse on rubber roller 602. At the same time, the operator starts the electric telescopic rod 8 on the convex frame 7. The telescopic end of the electric telescopic rod 8... Moving to the left, the telescopic end of the electric telescopic rod 8 drives the hollow column 9 to move to the left. The hollow column 9 drives the grinding brush head 10 to move to the left. During the leftward movement, the grinding brush head 10 contacts the inner wall of the round tube and grinds the inner wall of the round tube. At the same time, the hollow column 9 drives the U-shaped ring frame 11 to move to the left. The U-shaped ring frame 11 drives the chamfered shell 12 to move to the left. During the leftward movement, the chamfered edge of the chamfered shell 12 contacts the rotating inner wall of the round tube, and the chamfered edge of the chamfered shell 12 scrapes in the grinding debris. This avoids the problem of incomplete grinding of the inner wall of the pipe caused by the accumulation of grinding debris in the pipe when the extension grinding component grinds the inner wall of the pipe. The grinding brush head 10 adopts a quick-release design. The operator can unscrew the T-shaped thread cap 103 clockwise to remove the sandpaper 102 from the concave round shell 101, replace the new sandpaper 102 on the surface of the concave round shell 101, and then screw the T-shaped thread cap 103 back into the concave round shell 101 counterclockwise, so that the operator can easily replace sandpaper 102 with different roughness.

[0025] A spraying device 13 is provided on the outer wall of the U-shaped ring frame 11. The spraying device 13 is used to spray abrasive onto the inner wall of the pipe. A wall wiping device 14 is provided on the inner wall of the spraying device 13. The wall wiping device 14 is used to wipe the inner wall of the pipe.

[0026] Working principle: The base frame 1 supports the base platform 2, and the round tube is placed above the electric roller 6. The servo cylinder 4 drives the pressure roller 5 to move downward. The square plate 501 drives the rubber roller 502 to move downward. The rubber roller 502 contacts the outer wall of the round tube. The rotating shaft of the motor 603 drives the belt in the belt assembly 604 to rotate. The belt of the belt assembly 604 drives the rubber roller 602. The rubber roller 602 rotates forward in the shaft frame 601. The rotating shaft of the rubber roller 602 drives the belt assembly 605 to rotate. Under the pressure of the rubber roller 502, the round tube rotates in reverse on the rubber roller 602. The telescopic end of the electric telescopic rod 8 drives the hollow column 9 to move to the left. The hollow column 9 drives the grinding brush head 10 to move to the left. The grinding brush head 10 grinds the inner wall of the round tube. The hollow column 9 drives the U-shaped ring frame 11 to move to the left. The U-shaped ring frame 11 drives the chamfered shell 12 to move to the left. Unscrew the T-shaped thread cap 103 clockwise, remove the sandpaper 102 from the concave round shell 101, replace it with a new sandpaper 102 on the surface of the concave round shell 101, and then screw the T-shaped thread cap 103 back onto the concave round shell 101 counterclockwise.

[0027] Please see Figures 1-10 Based on the above embodiments, in another embodiment of the present invention, the spraying device 13 includes: a U-shaped frame 131, which is fixed on the outer wall of the U-shaped ring frame 11; a bent pipe 132, which is fixedly installed in front of the outer wall of the U-shaped frame 131; a flexible hose 133, which is fixedly installed at the right end of the bent pipe 132 and is located inside the groove of the convex frame 7; an electric nozzle 134, which is fixedly installed at the end of the bent pipe 132 away from the flexible hose 133; a liquid storage tank 135, which is fixed at the bottom inside the base frame 1 and is located below the convex frame 7; an inlet is provided on the top surface of the liquid storage tank 135; and a suction pump 136, which is fixed at the bottom inside the liquid storage tank 135 and is fixedly connected to the top surface of the flexible hose 133 away from the bent pipe 132. The electric nozzle 134 is used to spray abrasive agent onto the inner wall of the pipe. While the U-shaped ring frame 11 moves the chamfered shell 12 to the left, the U-shaped ring frame 11 also moves the spiral frame 131 to the left. The spiral frame 131 then moves the bent pipe 132 to the left, which in turn moves the electric nozzle 134 to the left. Simultaneously, the operator starts the suction pump 136 in the storage tank 135. The suction pump 136 draws the polishing agent from the storage tank 135 and delivers it into the hose 133. The hose 133 then delivers the polishing agent into the bent pipe 132, which in turn delivers it into the electric nozzle 134. The electric nozzle 134 sprays the polishing agent onto the inner wall of the round pipe, improving the polishing effect of the polishing brush head 10. This avoids the problem of substandard polishing of the inner wall of the pipe caused by the poor polishing effect of the polishing brush head 10 when the extended polishing assembly polishes the inner wall of the pipe.

[0028] A square rod 137 is fixed on the right side of the U-shaped frame 131. Two round openings are opened on the outer wall of the square rod 137. A thin rod 138 is fixed through the top surface of the square rod 137. A ring block 139 is fixed at the top of the thin rod 138. The ring block 139 is fitted onto the flexible tube 133. While the U-shaped ring frame 11 moves the bent pipe 132 to the left, the U-shaped ring frame 11 also moves the square rod 137 to the left. The square rod 137 then moves the thin rod 138 to the left, and the thin rod 138 moves the ring block 139 to the left. As the ring block 139 moves, it restricts the bending of the hose 133, thereby preventing the hose 133 from becoming excessively bent and causing internal blockage when the extension grinding assembly grinds the inner wall of the pipe.

[0029] The wall wiping device 14 includes: a U-shaped rod 141, which is fixed in the inner wall of the round opening of the thin rod 138; a straight ring plate 142, which is fixed in the middle of the outer wall of the U-shaped rod 141; a sponge block 143, which is fixed at the end of the straight ring plate 142 away from the U-shaped rod 141; and a connecting plate 144, which is fixed on the front side of the sponge block 143. The front end of the connecting plate 144 is fixedly connected to the back side of the spiral frame 131. The sponge block 143 is used to wipe the inner wall of the pipe. While the square rod 137 drives the thin rod 138 to move to the left, the square rod 137 drives the U-shaped rod 141 to move to the left, the U-shaped rod 141 drives the ring straight plate 142 to move to the left, the ring straight plate 142 drives the sponge block 143 to move to the left, and the connecting plate 144 supports the sponge block 143 to move to the left, so that the sponge block 143 wipes the inner wall of the round tube during the process of moving to the left, thereby avoiding the problem of a lot of abrasive residue on the inner wall of the round tube when the extension grinding assembly grinds the inner wall of the pipe, causing a lot of liquid accumulation inside the round tube.

[0030] A horizontal plate 145 is fixedly installed on the top surface of the ring plate 142 and the connecting plate 144. A housing 146 is fixedly installed through the middle of the top surface of the horizontal plate 145. A glass window 147 is fixedly installed on the top of the inner wall of the housing 146. A laser sensor 148 is fixedly installed at the bottom inside the housing 146. While the U-shaped rod 141 drives the ring straight plate 142 to move to the left, the ring straight plate 142 drives the horizontal plate 145 to move to the left, the horizontal plate 145 drives the housing 146 to move to the left, the housing 146 drives the glass window 147 to move to the left, and the housing 146 drives the laser sensor 148 to move to the left. The operator activates the laser sensor 148, and the infrared light emitted by the laser sensor 148 illuminates the inner wall of the pipe. When the inner wall of the pipe is rough, the photosensitive element of the laser sensor 148 receives less light signal, and vice versa, it indicates that the inner wall of the pipe is smooth. This avoids the problem that when the extension grinding assembly grinds the inner wall of the pipe, the operator has to perform the operation cumbersomely when checking the roughness of the inner wall of the pipe, which leads to poor equipment performance.

[0031] Working principle: The U-shaped ring frame 11 drives the spiral frame 131 to move to the left, the spiral frame 131 drives the bent pipe 132 to move to the left, the bent pipe 132 drives the electric nozzle 134 to move to the left, the suction pump 136 draws the polishing agent from the storage tank 135, the suction pump 136 delivers the polishing agent into the hose 133, the hose 133 delivers the polishing agent into the bent pipe 132, the bent pipe 132 delivers the polishing agent into the electric nozzle 134, and the electric nozzle 134 sprays the polishing agent onto the inner wall of the circular pipe; The U-shaped ring frame 11 drives the square rod 137 to move to the left, the square rod 137 drives the thin rod 138 to move to the left, the thin rod 138 drives the ring block 139 to move to the left, and the ring block 139 restricts the bending of the hose 133. The square rod 137 drives the U-shaped rod 141 to move to the left, the U-shaped rod 141 drives the ring straight plate 142 to move to the left, the ring straight plate 142 drives the sponge block 143 to move to the left, and the connecting plate 144 supports the sponge block 143 to move to the left. The ring plate 142 drives the horizontal plate 145 to move to the left, the horizontal plate 145 drives the housing 146 to move to the left, the housing 146 drives the glass window 147 to move to the left, the housing 146 drives the laser sensor 148 to move to the left, and the infrared light emitted by the laser sensor 148 irradiates the inner wall of the pipe.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A pipe in-wall extension polishing assembly comprising: The bottom frame (1) is internally provided with a bottom table (2); A cylindrical frame (3) is fixed to the internal bottom end of the bottom frame (1), and the cylindrical frame (3) is located on the left side of the bottom table (2); A servo cylinder (4) is fixed to the internal top end of the cylindrical frame (3), and the servo cylinder (4) is provided with a pressing wheel (5) on the bottom surface of the telescopic end; An electric frame roller (6) is arranged below the internal cylindrical frame (3); A convex frame (7) is fixed to the top of the internal wall of the bottom frame (1), and the convex frame (7) is located on the right side of the bottom table (2), and the top surface of the convex frame (7) is provided with a notch; An electric telescopic rod (8) penetrates and is fixed to the internal wall of the convex frame (7); A hollow column (9) is fixed to the left side of the telescopic end of the electric telescopic rod (8); A polishing brush head (10) is arranged on the left side of the hollow column (9); A U-shaped ring frame (11) is fixed to the outer wall of the telescopic end of the electric telescopic rod (8), and the outer wall of the U-shaped ring frame (11) is fixed with a chamfered shell (12) at the bottom, and the chamfered shell (12) is used for shoveling the polishing scraps in the inner wall of the pipeline.

2. A pipe in-wall extension polishing assembly according to claim 1, wherein: The pressing wheel (5) comprises a square plate (501) and rubber rollers (502), the square plate (501) is fixed to the bottom surface of the telescopic end of the servo cylinder (4), and the rubber rollers (502) are rotatably installed in pairs on the bottom surface of the square plate (501).

3. A pipe in-wall extension polishing assembly according to claim 2, wherein: The electric frame roller (6) comprises an axle frame (601), a rubber roller (602), an electric motor (603), a belt assembly one (604) and a belt assembly two (605), the axle frame (601) is fixed to the internal bottom end of the bottom frame (1), the rubber roller (602) is rotatably installed on the top of the internal wall of the axle frame (601), the electric motor (603) is fixedly installed on the internal bottom end of the axle frame (601), the belt assembly one (604) is fixed to the left side of the rotating shaft of the rubber roller (602), the right side of the belt assembly one (604) is fixedly connected with the left side of the rotating shaft of the electric motor (603), the belt assembly one (604) drives the rubber roller (602) through a belt, and the belt assembly two (605) is fixed to the right end of the rubber roller (602).

4. A pipe in-wall extension polishing assembly according to claim 3, wherein: The top surface of the bottom table (2) is provided with a plurality of arc openings, the pressing wheel (5) is located above the electric frame roller (6), and the chamfered shell (12) is provided with a chamfer at the bottom of the back surface.

5. A pipe in-wall extension polishing assembly according to claim 4, wherein: The outer wall of the U-shaped ring frame (11) is provided with a spraying device (13), and the spraying device (13) is used for spraying the polishing agent onto the inner wall of the pipeline; The inner wall of the spraying device (13) is provided with a wall wiping device (14), and the wall wiping device (14) is used for wiping the inner wall of the pipeline.

6. A pipe in-wall extension polishing assembly according to claim 5, wherein: The spraying device (13) comprises a back-shaped frame (131) fixed to the outer wall of the U-shaped ring frame (11); A bent pipe (132) is fixedly installed on the front of the outer wall of the back-shaped frame (131); A hose (133) is fixedly installed at the right end of the elbow (132), and located inside the notch of the convex bracket (7); An electric spray head (134) is fixedly installed at the end of the elbow (132) away from the hose (133); A liquid storage tank (135) is fixed at the bottom end inside the chassis (1), and located below the convex bracket (7), and the top surface of the liquid storage tank (135) is provided with a liquid inlet; A suction pump (136) is fixed at the bottom end inside the liquid storage tank (135), and the top surface of the suction pump (136) is fixedly connected with the end of the hose (133) away from the elbow (132); The electric spray head (134) is used for spraying the polishing agent on the inner wall of the pipeline.

7. A pipe in-wall extension polishing assembly according to claim 6, wherein: A square rod (137) is fixed at the right side of the L-shaped bracket (131), two circular openings are formed in the outer wall of the square rod (137), a thin rod (138) penetrates through and is fixed to the top surface of the square rod (137), a ring block (139) is fixed to the top end of the thin rod (138), and the ring block (139) is sleeved on the hose (133).

8. A pipe in-wall extension polishing assembly according to claim 7, wherein: The wall wiping device (14) comprises a U-shaped rod (141) fixed in the inner wall of the circular opening of the thin rod (138); A ring straight plate (142) is fixed to the middle of the outer wall of the U-shaped rod (141); A sponge block (143) is fixed to the end of the ring straight plate (142) away from the U-shaped rod (141); An adapter plate (144) is fixed to the front surface of the sponge block (143), and the front end of the adapter plate (144) is fixedly connected with the back surface of the L-shaped bracket (131); The sponge block (143) is used for wiping the inner wall of the pipeline.

9. A pipe in-wall extension polishing assembly according to claim 8, wherein: A horizontal plate (145) is fixedly installed on the top surfaces of the ring straight plate (142) and the adapter plate (144), a housing (146) penetrates through and is fixed to the middle of the top surface of the horizontal plate (145), a glass window (147) is fixedly installed on the inner wall of the top of the housing (146), and a laser sensor (148) is fixedly installed at the bottom end inside the housing (146).

10. A pipe polishing brush, a pipe inner wall extending type polishing assembly according to any one of claims 1-9, characterized in that: It comprises: A concave round shell (101), polishing sandpaper (102) and a T-shaped threaded cap (103), the concave round shell (101) is fixed at the left end of the hollow column (9), the polishing sandpaper (102) is fixedly installed on the outer wall of the concave round shell (101), and the T-shaped threaded cap (103) is rotatably installed on the inner wall of the concave round shell (101).

Images