A kind of building scaffolding polishing equipment

Abstract

The present invention discloses a building scaffolding polishing processing equipment in the field of steel pipe polishing technology, including a hollow steel pipe, corundum and a base, and also including an upper box, a lower box, a fixing device, a sand blasting device, a recycling device and a grinding device. The two ends of the hollow steel pipe are fixedly connected to the fixing device; the corundum is contained in the upper box, and the sand blasting device uses high-speed gas to spray corundum to the inner wall of the hollow steel pipe to perform sand blasting and polishing on the inner wall of the hollow steel pipe; the grinding device grinds and polishes the outer wall of the hollow steel pipe. The beneficial effects of the present invention are as follows: the sand blasting device uses high-speed gas to spray corundum to the inner wall of the hollow steel pipe to perform sand blasting and polishing on the inner wall of the hollow steel pipe, and the grinding device is used to grind and polish the outer wall of the hollow steel pipe. The circumference of the hollow steel pipe is evenly arranged, and multiple hollow steel pipes can be polished at the same time. The recycling device is used to transport the corundum in the lower box to the upper box to realize the recycling of corundum.

Description

Technical Field

[0001] The invention relates to a building scaffold polishing device, which is used for synchronously polishing the inside and outside of a hollow steel pipe for the scaffold. Background Art

[0002] Scaffolding is a working platform set up to ensure the smooth progress of each construction process. Steel pipe scaffolding is a more common type of scaffolding. Hollow steel pipe is one of the important components of steel pipe scaffolding. Hollow steel pipe is built outdoors to withstand the sun and rain, and will be repeatedly recycled. During long-term use, the inner and outer walls of the hollow steel pipe will rust. If not treated, the loose rust will increase the oxidation rate of the hollow steel pipe, thereby causing the structural strength of the hollow steel pipe to drop too quickly, creating a safety hazard. Therefore, when the hollow steel pipe is rusted, the hollow steel pipe needs to be polished and re-coated with an anti-rust layer.

[0003] In the prior art, the outer wall of the hollow steel pipe is ground and polished by sandpaper, which has high strength and low efficiency. The Chinese patent with patent application number: CN201811543723.0 discloses a multifunctional steel pipe polishing device for industrial machinery. The device is provided with a dust collection device, which can effectively handle dust. The device is provided with an outer box body, which can play a good protective role. The steel pipe support device of the device can adjust the distance and can support steel pipes of various sizes. The polishing grinding wheel of the device can adjust the distance and can adapt to steel pipes of various sizes. The device is provided with a steel pipe tightening device, which can improve the stability during polishing. The steel pipe support adjustment device is in contact with the outer box body of the device, the polishing lifting control device is connected to the steel pipe polishing device, the dust collection device is connected to the steel pipe polishing device, the steel pipe tightening device is connected to the outer box body of the device, the steel pipe support device is connected to the fixed bottom plate of the device, and the steel pipe support adjustment device is connected to the fixed bottom plate of the device.

[0004] However, the above patent has at least the following problems:

[0005] First, only one steel pipe can be polished at a time, which is inefficient;

[0006] Secondly, the above patent can only polish the outer wall of the steel pipe, but cannot polish the inner wall of the steel pipe. Summary of the invention

[0007] In order to solve the above problems, the present invention provides a building scaffolding polishing equipment, and the present invention is achieved through the following technical solutions.

[0008] A building scaffolding polishing treatment device comprises a hollow steel pipe, corundum and a base, and also comprises an upper box, a lower box, a fixing device, a sandblasting device, a recycling device and a grinding device, wherein the upper box and the lower box are arranged at intervals from top to bottom, and the lower box is located on the base; the circumference of the hollow steel pipe is evenly arranged between the upper box and the lower box, and the upper and lower ends of the hollow steel pipe are fixedly connected to the fixing device; the corundum is contained in the upper box, and the sandblasting device uses high-speed gas to spray the corundum onto the inner wall of the hollow steel pipe to perform sandblasting and polishing on the inner wall of the hollow steel pipe; the corundum in the hollow steel pipe flows into the lower box, and the recycling device is used to transport the corundum in the lower box to the upper box; the grinding device is arranged on the outer side of the hollow steel pipe, and is used to perform grinding and polishing on the outer wall of the hollow steel pipe,

[0009] The sand blasting device comprises a sand blasting tube, a hollow tube, a central column and a fan; the first mounting plate and the second mounting plate are rotatably connected to the side plates of the upper box body and the lower box body which are close to each other, respectively; the sand blasting tube is rotatably connected to the first mounting plate, and the upper circumference of the sand blasting tube is evenly provided with sand inlets, and the hollow tube is slidably connected to the sand blasting tube, and the position of the second mounting plate corresponding to the sand blasting tube is also rotatably connected to the hollow tube, and the fixing device is arranged on the hollow tube, and the outer wall of the upper hollow tube and the sand blasting tube are The inner walls are respectively provided with guide blocks and guide grooves that adapt to each other, the central column is fixedly connected to the centers of the first mounting plate and the second mounting plate, an air inlet bin is fixedly connected to the top of the upper box body, the central column is rotatably connected to the air inlet bin and the upper box body, an air inlet cavity is opened above the central column, an air inlet pipe is fixedly connected to the air inlet cavity, the other end of the air inlet pipe is rotatably connected to the sand flushing pipe, an air inlet is opened at the position of the air inlet cavity corresponding to the air inlet bin, the fan is fixedly connected to the left side of the lower box body, and the outlet of the fan is connected to the air inlet bin through an air supply pipe.

[0010] Preferably, the fixing device includes a socket, a support plate, a push ring, a threaded sleeve and a top seat; the socket is fixedly connected to the head of the hollow tube, the support plate is fixedly connected to the hollow tube, the push ring is slidably connected to the hollow tube, the inner wall of the push ring and the outer wall of the hollow tube are respectively provided with limit blocks and limit grooves, the threaded sleeve is threadedly connected to the hollow tube, the threaded sleeve is rotatably connected to the push ring, the top seat is evenly slidably connected to the socket in a circular shape, a fixing column is fixedly connected to the side of the top seat away from the hollow tube, a connecting rod is hinged between the top seat and the push ring, and an avoidance groove corresponding to the connecting rod is opened on the support plate.

[0011] Preferably, the upper surface of the lower socket is tilted downward in a direction pointing to the center thereof.

[0012] Preferably, a base is fixedly connected to the air inlet bin, a motor is fixedly connected to the lower surface of the base, the output shaft of the motor is connected to the center column, a through groove is opened in the center of the bottom plate of the upper box body, a ring-shaped connecting seat is fixedly connected to the side wall of the through groove, a connecting groove adapted to the connecting seat is opened on the outer ring of the first mounting plate, a gear ring is fixedly connected to the inner wall of the connecting seat, the position of the sand flushing pipe corresponds to the connecting groove, a rolling gear is fixedly connected to the sand flushing pipe, and the rolling gear is meshed with the gear ring.

[0013] Preferably, the grinding device includes a transmission box, a dust box and a grinding roller; track grooves are opened on the first mounting plate and the second mounting plate at positions corresponding to the hollow steel pipes, a track rod is fixedly connected in the track groove, a track block is slidably connected to the track rod, a spring is sleeved on the track rod, the transmission box is fixedly connected to the track block, the dust box is fixedly connected to one side of the transmission box close to the center column, the grinding roller is rotatably connected between the transmission boxes, and a pair of grinding rollers are provided.

[0014] Preferably, when the grinding roller contacts the hollow steel pipe, the spring is in a compressed state.

[0015] Preferably, the dust suction box is densely covered with dust suction ports on one side close to the hollow steel pipe, and a dust suction chamber is opened at the bottom of the central column, and the dust suction chamber is connected to the dust suction box through a dust suction hose. A filter box is fixedly connected to the left side of the lower box body, and a filter screen is fixedly connected to the filter box, and the filter screen divides the filter box into a clean air chamber and a collecting chamber. A box door is detachably connected to the position of the collecting chamber on the bottom plate of the filter box, and the inlet of the fan is connected to the clean air chamber through an exhaust pipe. An air outlet pipe is fixedly connected to the left side of the lower box body, one end of the air outlet pipe is connected to the collecting chamber, and the other end of the air outlet pipe is rotatably connected to the bottom of the central column.

[0016] Preferably, positioning rings are fixed symmetrically in the upper hollow tube, a sliding cylinder is movably connected between the positioning rings, the bottom of the sliding cylinder is connected to a magnetic ball through a sand outlet hose, a sandblasting tube is fixed to the magnetic ball, the grinding roller is rotatably connected between the transmission boxes through a rotating shaft symmetrically arranged above and below, the head of the rotating shaft extends into the transmission box and is fixedly connected to a driving gear, a reciprocating screw is rotatably connected between the transmission boxes, the head of the reciprocating screw is fixedly connected to a lifting gear meshing with the driving gear, a sliding rod is fixed between the transmission boxes, a permanent magnet seat is slidably connected to the sliding rod, and the permanent magnet seat meshes with the reciprocating screw.

[0017] Preferably, the recycling device includes a screen and a lifting cylinder, a fixing ring is fixedly connected to the inner wall of the side plate of the lower box body, a rotating ring is rotatably connected to the lower surface of the second mounting plate, the screen is fixedly connected between the fixing ring and the rotating ring, the cross-section of the screen is arc-shaped, a partition is fixedly connected in the upper box body, the center column is rotatably connected to the partition, the lifting cylinder is evenly fixed circumferentially between the upper box body and the lower box body, a support rod is fixedly connected between the lifting cylinder and the rotating ring, a lifting shaft is provided at the center of the lifting cylinder, the lifting shaft is rotatably connected to the fixing ring and the partition, a driven gear is fixedly connected to the top of the lifting shaft, a driving gear is fixedly connected to the center column, a transmission gear is rotatably connected between the driven gear and the driving gear, both sides of the transmission gear are respectively meshed with the driven gear and the driving gear, a spiral lifting blade is fixedly connected to the lifting shaft, and a cleaning port is provided on the rear side of the lower box body.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. Both ends of the hollow steel pipe are fixedly connected to the fixing device. The sandblasting device uses high-speed gas to spray diamond abrasive to the inner wall of the hollow steel pipe to perform sandblasting and polishing on the inner wall of the hollow steel pipe. The grinding device is used to grind and polish the outer wall of the hollow steel pipe. The inside and outside of the hollow steel pipe can be polished at the same time.

[0020] 2. The circumference of the hollow steel pipe is evenly arranged between the upper box and the lower box, so that multiple hollow steel pipes can be polished at the same time to improve efficiency.

[0021] 3. The corundum in the hollow steel pipe flows into the lower box, and the recycling device is used to transport the corundum in the lower box to the upper box, so that the corundum can be recycled. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 : A cross-sectional view of a building scaffold polishing device according to the present invention;

[0024] Figure 2 : A half-section view of the first mounting plate of the present invention;

[0025] Figure 3 : A three-dimensional schematic diagram of the grinding device of the present invention;

[0026] Figure 4 : Driving schematic diagram of the reciprocating screw rod of the present invention;

[0027] Figure 5 : A half-section view of the magnetic ball of the present invention;

[0028] Figure 6 : A half-section view of the screen of the present invention;

[0029] Figure 7 : Figure 1 A partial enlarged view of point A shown;

[0030] Figure 8 : Figure 1 A partial enlarged view of point B shown;

[0031] Fig. 9 : Figure 1 A local enlarged view of point C shown;

[0032] Fig.10 : Figure 1 A local enlarged view of point D shown;

[0033] Fig.11 : Figure 1 A local enlarged view of point E shown;

[0034] Fig.12 : Figure 1 A partial enlarged view of point F shown;

[0035] Fig.13 : Figure 1 A local enlarged view of point G is shown.

[0036] The reference numerals are as follows:

[0037] 11-hollow steel pipe, 12-emery, 13-base.

[0038] 21-upper box, 22-lower box.

[0039] 31-socket, 32-support plate, 33-push ring, 34-threaded sleeve, 35-top seat, 36-limiting block, 37-limiting groove, 38-fixing column, 39-connecting rod, 310-avoidance groove.

[0040] 41-sand flushing pipe, 42-hollow pipe, 43-center column, 44-fan, 45-first mounting plate, 46-second mounting plate, 47-sand inlet, 48-guide block, 49-guide groove, 410-air inlet bin, 411-air inlet cavity, 412-air inlet pipe, 413-air inlet, 414-air supply pipe.

[0041] 51-screen, 52-lifting cylinder, 53-fixed ring, 54-rotating ring, 55-partition, 56-support rod, 57-lifting shaft, 58-driven gear, 59-driving gear, 510-transmission gear, 511-lifting blade, 512-cleaning port.

[0042] 61-transmission box, 62-dust suction box, 63-grinding roller, 64-track groove, 65-track rod, 66-track block, 67-spring.

[0043] 71-machine base, 72-motor, 73-connecting base, 74-connecting groove, 75-gear ring, 76-rolling gear.

[0044] 81 - dust suction port, 82 - dust suction chamber, 83 - dust suction hose, 84 - filter box, 85 - filter screen, 86 - clean air chamber, 87 - collection chamber, 88 - box door, 89 - exhaust pipe, 810 - air outlet pipe.

[0045] 91-positioning ring, 92-sliding cylinder, 93-sand discharge hose, 94-magnetic ball, 95-sandblasting tube, 96-rotating shaft, 97-driving gear, 98-reciprocating screw rod, 99-lifting gear, 910-sliding rod, 911-permanent magnetic seat. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] like Figure 1-13 As shown, the present invention has the following five specific embodiments. Example 1

[0048] A building scaffolding polishing treatment equipment comprises a hollow steel pipe 11, corundum 12 and a base 13, and also comprises an upper box body 21, a lower box body 22, a fixing device, a sandblasting device, a recycling device and a grinding device, wherein the upper box body 21 and the lower box body 22 are arranged at intervals in the upper and lower parts, and the lower box body 22 is located on the base 13; the hollow steel pipe 11 is evenly arranged between the upper box body 21 and the lower box body 22 in a circumference, and the upper and lower ends of the hollow steel pipe 11 are fixedly connected to the fixing device; the corundum 12 is contained in the upper box body 21, and the sandblasting device uses high-speed gas to spray the corundum 12 onto the inner wall of the hollow steel pipe 11 to perform sandblasting and polishing on the inner wall of the hollow steel pipe 11; the corundum 12 in the hollow steel pipe 11 flows into the lower box body 22, and the recycling device is used to transport the corundum 12 in the lower box body 22 to the upper box body 21; the grinding device is arranged on the outer side of the hollow steel pipe 11, and is used to perform grinding and polishing on the outer wall of the hollow steel pipe 11,

[0049] The sand flushing device includes a sand flushing tube 41, a hollow tube 42, a center column 43 and a fan 44; the first mounting plate 45 and the second mounting plate 46 are rotatably connected to the side plates of the upper box body 21 and the lower box body 22 that are close to each other, respectively; the sand flushing tube 41 is evenly rotatably connected to the first mounting plate 45, and the upper circumference of the sand flushing tube 41 is evenly provided with sand inlet 47, the hollow tube 42 is slidably connected to the sand flushing tube 41, and the position of the second mounting plate 46 corresponding to the sand flushing tube 41 is also rotatably connected to the hollow tube 42, and the fixing device is arranged on the hollow tube 42, and the outer wall of the upper hollow tube 42 and the inner wall of the sand flushing tube 41 are respectively provided with mutually adapted The guide block 48 and the guide groove 49, the center column 43 is fixedly connected to the center of the first mounting plate 45 and the second mounting plate 46, the top of the upper box body 21 is fixedly connected with an air inlet bin 410, the center column 43 is rotatably connected to the air inlet bin 410 and the upper box body 21, an air inlet cavity 411 is opened above the center column 43, an air inlet pipe 412 is fixedly connected to the air inlet cavity 411, the other end of the air inlet pipe 412 is rotatably connected to the sand flushing pipe 41, the air inlet cavity 411 corresponds to the position of the air inlet bin 410. The fan 44 is fixedly connected to the left side of the lower box body 22, and the outlet of the fan 44 is connected to the air inlet bin 410 through the air supply pipe 414.

[0050] Furthermore, the fixing device includes a socket 31, a support plate 32, a push ring 33, a threaded sleeve 34 and a top seat 35; the socket 31 is fixedly connected to the head of the hollow tube 42, the support plate 32 is fixedly connected to the hollow tube 42, the push ring 33 is slidably connected to the hollow tube 42, the inner wall of the push ring 33 and the outer wall of the hollow tube 42 are respectively provided with a limit block 36 and a limit groove 37, the threaded sleeve 34 is threadedly connected to the hollow tube 42, the threaded sleeve 34 is rotatably connected to the push ring 33, the top seat 35 is evenly slidably connected to the socket 31, a fixing column 38 is fixedly connected to the side of the top seat 35 away from the hollow tube 42, a connecting rod 39 is hinged between the top seat 35 and the push ring 33, and an avoidance groove 310 corresponding to the connecting rod 39 is opened on the support plate 32.

[0051] Furthermore, the upper surface of the lower socket 31 is tilted downward in a direction pointing to the center thereof.

[0052] In this embodiment, Figure 1 As shown, both ends of the hollow steel pipe 11 are fixedly connected to the fixing device, the sandblasting device uses high-speed gas to spray corundum 12 onto the inner wall of the hollow steel pipe 11 to sandblast and polish the inner wall of the hollow steel pipe 11, and the grinding device is used to grind and polish the outer wall of the hollow steel pipe 11, and the inside and outside of the hollow steel pipe 11 can be polished at the same time; the circumference of the hollow steel pipe 11 is evenly arranged between the upper box body 21 and the lower box body 22, and multiple hollow steel pipes 11 can be polished at the same time to improve efficiency; the corundum 12 in the hollow steel pipe 11 flows into the lower box body 22, and the recycling device is used to transport the corundum 12 in the lower box body 22 to the upper box body 21, so that the corundum 12 can be recycled.

[0053] When the device is in use, the hollow steel pipe 11 is fixed.

[0054] First, the bottom of the hollow steel pipe 11 is fixed, such as Fig.12 As shown, the bottom of the hollow steel pipe 11 is placed on the support plate 32, the socket 31 enters the hollow steel pipe 11, and then the threaded sleeve 34 is rotated to make it rise. The push ring 33 will not rotate under the action of the limit block 36 and the limit groove 37. Since the threaded sleeve 34 is rotatably connected with the push ring 33, the push ring 33 will be driven to rise when the threaded sleeve 34 rises. The push ring 33 pushes the top seat 35 and the fixing column 38 outward through the connecting rod 39, and the hollow steel pipe 11 is fixed by the fixing column 38.

[0055] When fixing the top of the hollow steel pipe 11, Figure 7 and 10 As shown, first move the upper hollow tube 42 upward so that the upper socket 31 moves to the top of the hollow steel tube 11, and then lower the hollow tube 42. Under the action of gravity, the socket 31 enters the hollow steel tube 11, and the upper support plate 32 contacts the top of the hollow steel tube 11. Then rotate the upper threaded sleeve 34 to make it descend, and the upper fixing column 38 fixes the top of the hollow steel tube 11, and the fixing of each hollow steel tube 11 is completed in turn.

[0056] When the sand washing device is working, Figure 1 As shown, the fan 44 delivers gas to the air inlet bin 410 through the air supply pipe 414. Fig. 9 As shown, the gas enters the sandblasting tube 41 through the air inlet 413, the air inlet cavity 411 and the air inlet pipe 412 in sequence, the corundum 12 in the upper box 21 flows down through the sand inlet 47, and mixes with the high-speed flowing gas in the sandblasting tube 41, and the mixture of gas and corundum 12 is discharged through the hollow tube 42 above and sprayed onto the inner wall of the hollow steel pipe 11 to perform sandblasting and polishing on the inner wall of the hollow steel pipe 11.

[0057] like Fig.12 As shown, since the upper surface of the lower socket 31 is tilted downward in a direction pointing to the center thereof, the diamond sand 12 enters the lower box body 22 through the hollow tube 42 below. Example 2

[0058] A base 71 is fixedly connected to the air inlet bin 410, a motor 72 is fixedly connected to the lower surface of the base 71, the output shaft of the motor 72 is connected to the center column 43, a through groove (not shown) is opened in the center of the bottom plate of the upper box body 21, a ring-shaped connecting seat 73 is fixedly connected to the side wall of the through groove, a connecting groove 74 adapted to the connecting seat 73 is opened on the outer ring of the first mounting plate 45, a gear ring 75 is fixedly connected to the inner wall of the connecting seat 73, the position of the sand flushing pipe 41 corresponds to the connecting groove 74, a rolling gear 76 is fixedly connected to the sand flushing pipe 41, and the rolling gear 76 is meshed with the gear ring 75.

[0059] Furthermore, the grinding device includes a transmission box 61, a dust box 62 and a grinding roller 63; a track groove 64 is opened on the first mounting plate 45 and the second mounting plate 46 at a position corresponding to the hollow steel pipe 11, a track rod 65 is fixedly connected in the track groove 64, a track block 66 is slidably connected to the track rod 65, a spring 67 is sleeved on the track rod 65, the transmission box 61 is fixedly connected to the track block 66, the dust box 62 is fixedly connected to one side of the transmission box 61 close to the center column 43, the grinding roller 63 is rotatably connected between the transmission box 61, and a pair of grinding rollers 63 are provided.

[0060] Furthermore, when the grinding roller 63 contacts the hollow steel pipe 11 , the spring 67 is in a compressed state.

[0061] In this embodiment, in order to achieve the grinding and polishing of the outer wall of the hollow steel pipe 11, this embodiment discloses the structure of the self-rotation of the hollow steel pipe 11 and the structure of the grinding device, such as Figure 1 As shown, when the motor 72 is working, it drives the central column 43, the first mounting plate 45 and the second mounting plate 46 to rotate, so that the hollow steel pipe 11 revolves around the central column 43. Figure 2 and 7 As shown, when the first mounting plate 45 rotates, the rolling gear 76 rotates under the action of the gear ring 75, so that the sand blasting tube 41 and the upper hollow tube 42 rotate synchronously. Since the lower hollow tube 42 is rotationally connected to the second mounting plate 46, and the hollow steel tube 11 is fixed between the hollow tubes 42 by the fixing device, the hollow steel tube 11 rotates around its own axis.

[0062] like Figure 3-4 ,as well as Fig.11 As shown, under the action of the spring 67 , the grinding roller 63 contacts the outer wall of the hollow steel pipe 11 , and the outer wall of the hollow steel pipe 11 is ground and polished by the grinding roller 63 when the hollow steel pipe 11 rotates. Example 3

[0063] The dust suction box 62 is densely covered with dust suction ports 81 on one side close to the hollow steel pipe 11, and a dust suction chamber 82 is opened at the bottom of the central column 43, and the dust suction chamber 82 is connected to the dust suction box 62 through a dust suction hose 83. A filter box 84 is fixedly connected to the left side of the lower box body 22, and a filter screen 85 is fixedly connected to the filter box 84. The filter screen 85 divides the filter box 84 into a clean air chamber 86 and a collection chamber 87. A box door 88 is detachably connected to the position of the collection chamber 87 on the bottom plate of the filter box 84, and the inlet of the fan 44 is connected to the clean air chamber 86 through an exhaust pipe 89. An air outlet pipe 810 is fixedly connected to the left side of the lower box body 22, and one end of the air outlet pipe 810 is connected to the collection chamber 87, and the other end of the air outlet pipe 810 is rotatably connected to the bottom of the central column 43.

[0064] In this embodiment, when the outer wall of the hollow steel tube 11 is polished, some iron filings will be generated. Figure 3 , 8 As shown in Figure 13, the inlet of the fan 44 is connected to the filter box 84 through the exhaust pipe 89. When the fan 44 is working, iron filings enter the dust box 62 through the dust suction port 81, and enter the collecting chamber 87 through the dust suction hose 83, the dust suction chamber 82 and the air outlet pipe 810 in turn. The iron filings are filtered by the filter 85, and the clean air is drawn by the fan 44 into the air inlet bin 410. The box door 88 can be opened to discharge the iron filings in the collecting chamber 87. Example 4

[0065] A positioning ring 91 is symmetrically fixed to the upper and lower hollow tube 42, a sliding cylinder 92 is movably connected between the positioning rings 91, the bottom of the sliding cylinder 92 is connected to a magnetic ball 94 through a sand outlet hose 93, a sandblasting tube 95 is fixed to the magnetic ball 94, the grinding roller 63 is rotatably connected to the transmission box 61 through a rotating shaft 96 symmetrically arranged above and below, the head of the rotating shaft 96 extends into the transmission box 61 and is fixedly connected to a driving gear 97, a reciprocating screw rod 98 is rotatably connected to the transmission box 61, the head of the reciprocating screw rod 98 is fixedly connected to a lifting gear 99 meshing with the driving gear 97, a sliding rod 910 is fixedly connected to the transmission box 61, a permanent magnet seat 911 is slidably connected to the sliding rod 910, and the permanent magnet seat 911 meshes with the reciprocating screw rod 98.

[0066] In this embodiment, the diamond sand 12 sprayed in the upper hollow tube 42 may not be fully sprayed to the inner wall of the hollow steel tube 11, so a magnetic ball 94 and a permanent magnetic seat 911 are provided. Figure 4 As shown, when the outer wall of the hollow steel pipe 11 is polished, under the action of friction, the polishing roller 63 itself rotates, thereby driving the driving gear 97 to rotate, and then driving the lifting gear 99 meshing with it to rotate, and the reciprocating screw 98 rotates with the lifting gear 99. Since the permanent magnet seat 911 is meshed with the lifting screw and is slidably connected to the sliding rod 910, the reciprocating screw 98 will drive the permanent magnet seat 911 to perform lifting movement when it rotates.

[0067] like Fig.12 As shown, the hollow steel pipe 11 near the permanent magnet seat 911 will generate magnetic attraction, thereby adsorbing the magnetic ball 94, driving the magnetic ball 94 to move up and down, and the diamond sand 12 enters the sliding cylinder 92 through the hollow tube 42 above, and enters the magnetic ball 94 through the sand outlet hose 93, and is then sprayed out from the sandblasting tube 95 to act on the inner wall of the hollow steel pipe 11. The magnetic ball 94 moves up and down, so that the inner wall of the hollow steel pipe 11 can be polished at different heights.

[0068] When the magnetic ball 94 rises, the sand outlet hose 93 bends to adapt to the rise of the magnetic ball 94. Of course, the sliding cylinder 92 can also rise and fall in the hollow tube 42 to adapt to the rise and fall of the magnetic ball 94. The positioning ring 91 is set to prevent the sliding cylinder 92 from separating from the hollow tube 42. Example 5

[0069] The recycling device includes a screen 51 and a lifting cylinder 52. A fixed ring 53 is fixedly connected to the inner wall of the side plate of the lower box body 22. A rotating ring 54 is rotatably connected to the lower surface of the second mounting plate 46. The screen 51 is fixedly connected between the fixed ring 53 and the rotating ring 54. The cross section of the screen 51 is arc-shaped. A partition 55 is fixedly connected to the upper box body 21. The center column 43 is rotatably connected to the partition 55. The lifting cylinder 52 is evenly fixed between the upper box body 21 and the lower box body 22. A support rod 56 is fixedly connected between the lifting cylinder 52 and the rotating ring 54. A lifting shaft 57 is provided at the center of the lifting cylinder 52, and the lifting shaft 57 is rotatably connected to the fixing ring 53 and the partition 55. A driven gear 58 is fixed to the top of the lifting shaft 57, and a driving gear 59 is fixed to the center column 43. A transmission gear 510 is rotatably connected between the driven gear 58 and the driving gear 59. The two sides of the transmission gear 510 are respectively meshed with the driven gear 58 and the driving gear 59. A spiral lifting blade 511 is fixed to the lifting shaft 57, and a cleaning port 512 is opened on the rear side of the lower box body 22.

[0070] In this embodiment, Fig.13 As shown, the diamond dust 12 is discharged from the hollow tube 42 below and falls onto the screen 51, and the iron filings generated when the inner wall of the hollow steel tube 11 is polished are screened out through the screen 51. The screened iron filings can be cleaned through the cleaning port 512, as shown in FIG. Figure 1 As shown, when the center column 43 rotates, the driving gear 59 is driven to rotate, and the driving gear 59 drives the driven gear 58 to rotate through the transmission gear 510, so that the lifting shaft 57 and the lifting blade 511 rotate, and the diamond sand 12 rises in the lifting cylinder 52 and returns to the upper box body 21, so that the diamond sand 12 is recycled.

[0071] The working principle of the present invention is:

[0072] The two ends of the hollow steel pipe 11 are fixed by a fixing device. When the fan 44 is working, a high-speed airflow is delivered to the sandblasting pipe 41. The corundum 12 falls into the sandblasting pipe 41 and mixes with the airflow, so that the corundum 12 is ejected from the magnetic ball 94 to the inner wall of the hollow steel pipe 11 for sandblasting and polishing.

[0073] When the motor 72 is working, it drives the hollow steel pipe 11 to rotate. During this process, the grinding roller 63 grinds and polishes the outer wall of the hollow steel pipe 11. When the hollow steel pipe 11 rotates, the grinding roller 63 is driven to rotate by friction. When the grinding roller 63 rotates, it drives the reciprocating screw 98 to rotate, thereby causing the permanent magnet seat 911 to move up and down, and then drives the magnetic ball 94 to move up and down, and sandblasting and polishing the different heights of the inner wall of the hollow steel pipe 11.

[0074] Iron filings generated when grinding the outer wall of the hollow steel pipe 11 are extracted into the filter box 84 for filtering.

[0075] The diamond grit 12 falls onto the screen 51 through the hollow tube 42 below, and the iron filings generated by sandblasting and polishing are screened out. The lifting blades 511 transport the diamond grit 12 to the upper box 21 for further use.

[0076] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A building scaffolding polishing device, comprising a hollow steel pipe (11), diamond sand (12) and a base (13), and also comprising an upper box (21), a lower box (22), a fixing device, a sand washing device, a recycling device and a grinding device, wherein the upper box (21) and the lower box (22) are arranged with a spacing from top to bottom, and the lower box (22) is located on the base (13); the hollow steel pipe (11) is evenly arranged between the upper box (21) and the lower box (22), and the upper and lower ends of the hollow steel pipe (11) are fixedly connected to the fixing device; the diamond sand The corundum (12) is contained in the upper box (21), and the sandblasting device uses high-speed gas to spray the corundum (12) onto the inner wall of the hollow steel pipe (11) to perform sandblasting and polishing on the inner wall of the hollow steel pipe (11); the corundum (12) in the hollow steel pipe (11) flows into the lower box (22), and the recycling device is used to transport the corundum (12) in the lower box (22) to the upper box (21); the polishing device is arranged on the outer side of the hollow steel pipe (11) to perform polishing on the outer wall of the hollow steel pipe (11), characterized in that: The sand flushing device comprises a sand flushing pipe (41), a hollow pipe (42), a central column (43) and a fan (44); the first mounting plate (45) and the second mounting plate (46) are rotatably connected to the side plates of the upper box body (21) and the lower box body (22) which are close to each other, respectively; the sand flushing pipe (41) is rotatably connected to the first mounting plate (45); the upper circumference of the sand flushing pipe (41) is evenly provided with sand inlet ports (47); the hollow pipe (42) is slidably connected to the sand flushing pipe (41); the position of the second mounting plate (46) corresponding to the sand flushing pipe (41) is also rotatably connected to the hollow pipe (42); the fixing device is arranged on the hollow pipe (42); the outer wall of the upper hollow pipe (42) and the inner wall of the sand flushing pipe (41) are respectively provided with guide blocks which are adapted to each other (48) and guide grooves (49), the central column (43) is fixedly connected to the center of the first mounting plate (45) and the second mounting plate (46), the top of the upper box body (21) is fixedly connected with an air inlet bin (410), the central column (43) is rotatably connected to the air inlet bin (410) and the upper box body (21), an air inlet cavity (411) is provided above the central column (43), an air inlet pipe (412) is fixedly connected to the air inlet cavity (411), the other end of the air inlet pipe (412) is rotatably connected to the sand flushing pipe (41), the air inlet cavity (411) is provided with an air inlet (413) at a position corresponding to the air inlet bin (410), the fan (44) is fixedly connected to the left side of the lower box body (22), and the outlet of the fan (44) is connected to the air inlet bin (410) through an air supply pipe (414); The air inlet bin (410) is fixedly connected to a base (71), a motor (72) is fixedly connected to the lower surface of the base (71), an output shaft of the motor (72) is connected to the center column (43), a through groove is provided at the center of the bottom plate of the upper box body (21), a ring-shaped connecting seat (73) is fixedly connected to the side wall of the through groove, a connecting groove (74) adapted to the connecting seat (73) is provided on the outer ring of the first mounting plate (45), a gear ring (75) is fixedly connected to the inner wall of the connecting seat (73), the position of the sand flushing pipe (41) corresponds to the connecting groove (74), a rolling gear (76) is fixedly connected to the sand flushing pipe (41), and the rolling gear (76) is meshed with the gear ring (75); The grinding device comprises a transmission box (61), a dust collection box (62) and a grinding roller (63); a track groove (64) is provided on the first mounting plate (45) and the second mounting plate (46) at positions corresponding to the hollow steel pipe (11); a track rod (65) is fixedly connected in the track groove (64); a track block (66) is slidably connected to the track rod (65); a spring (67) is sleeved on the track rod (65); the transmission box (61) is fixedly connected to the track block (66); the dust collection box (62) is fixedly connected to one side of the transmission box (61) close to the central column (43); the grinding roller (63) is rotatably connected between the transmission box (61); and a pair of grinding rollers (63) are provided.

2. A construction scaffolding polishing equipment according to claim 1, characterized in that: The fixing device comprises a socket (31), a support plate (32), a push ring (33), a threaded sleeve (34) and a top seat (35); the socket (31) is fixedly connected to the head of the hollow tube (42), the support plate (32) is fixedly connected to the hollow tube (42), the push ring (33) is slidably connected to the hollow tube (42), and the inner wall of the push ring (33) and the outer wall of the hollow tube (42) are respectively provided with a limit block (36) and a limit groove (37). The threaded sleeve (34) is threadedly connected to the hollow tube (42), the threaded sleeve (34) is rotatably connected to the push ring (33), the top seat (35) is circumferentially evenly slidably connected to the socket (31), a fixing column (38) is fixedly connected to the side of the top seat (35) away from the hollow tube (42), a connecting rod (39) is hinged between the top seat (35) and the push ring (33), and an avoidance groove (310) corresponding to the connecting rod (39) is opened on the support plate (32).

3. A construction scaffolding polishing equipment according to claim 2, characterized in that: The upper surface of the lower socket (31) is tilted downward in a direction pointing to the center thereof.

4. A construction scaffolding polishing equipment according to claim 1, characterized in that: When the grinding roller (63) contacts the hollow steel pipe (11), the spring (67) is in a compressed state.

5. The construction scaffolding polishing equipment according to claim 1, characterized in that: The dust suction box (62) is densely covered with dust suction ports (81) on one side close to the hollow steel pipe (11), the bottom of the central column (43) is provided with a dust suction chamber (82), the dust suction chamber (82) is connected to the dust suction box (62) through a dust suction hose (83), the left side of the lower box body (22) is fixedly connected with a filter box (84), a filter screen (85) is fixedly connected inside the filter box (84), and the filter screen (85) divides the filter box (84) into a clean air chamber (86) and a clean air chamber (87). ) and a collecting chamber (87), a box door (88) is detachably connected to a position on the bottom plate of the filter box (84) corresponding to the collecting chamber (87), the inlet of the fan (44) is connected to the clean air chamber (86) through an exhaust pipe (89), an air outlet pipe (810) is fixedly connected to the left side of the lower box body (22), one end of the air outlet pipe (810) is connected to the collecting chamber (87), and the other end of the air outlet pipe (810) is rotatably connected to the bottom of the central column (43).

6. A construction scaffolding polishing equipment according to claim 1, characterized in that: The upper hollow tube (42) is symmetrically fixed with a positioning ring (91) in the upper and lower parts, and a sliding cylinder (92) is movably connected between the positioning rings (91). The bottom of the sliding cylinder (92) is connected to a magnetic ball (94) through a sand discharge hose (93). A sandblasting tube (95) is fixed to the magnetic ball (94). The grinding roller (63) is rotatably connected between the transmission box (61) through a rotating shaft (96) symmetrically arranged in the upper and lower parts. The head of the rotating shaft (96) extends The transmission box (61) is inserted into the transmission box (61) and is fixedly connected to a driving gear (97). A reciprocating screw rod (98) is rotatably connected between the transmission box (61). The head of the reciprocating screw rod (98) is fixedly connected to a lifting gear (99) meshing with the driving gear (97). A sliding rod (910) is fixedly connected between the transmission box (61). A permanent magnet seat (911) is slidably connected to the sliding rod (910). The permanent magnet seat (911) meshes with the reciprocating screw rod (98).

7. The construction scaffolding polishing equipment according to claim 1, characterized in that: The recycling device comprises a screen (51) and a lifting cylinder (52); a fixed ring (53) is fixedly connected to the inner wall of the side plate of the lower box body (22); a rotating ring (54) is rotatably connected to the lower surface of the second mounting plate (46); the screen (51) is fixedly connected between the fixed ring (53) and the rotating ring (54); the cross section of the screen (51) is arc-shaped; a partition (55) is fixedly connected inside the upper box body (21); the central column (43) is rotatably connected to the partition (55); the lifting cylinder (52) is evenly fixedly connected between the upper box body (21) and the lower box body (22); a support rod (54) is fixedly connected between the lifting cylinder (52) and the rotating ring (54); 56), a lifting shaft (57) is provided at the center of the lifting cylinder (52), the lifting shaft (57) is rotatably connected to the fixing ring (53) and the partition plate (55), a driven gear (58) is fixedly connected to the top of the lifting shaft (57), a driving gear (59) is fixedly connected to the center column (43), a transmission gear (510) is rotatably connected between the driven gear (58) and the driving gear (59), the two sides of the transmission gear (510) are respectively meshed with the driven gear (58) and the driving gear (59), a spiral lifting blade (511) is fixedly connected to the lifting shaft (57), and a cleaning port (512) is opened at the rear side of the lower box body (22).

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