Automatic rust removal device for inner wall of building engineering sleeve

Abstract

The application discloses an automatic rust removal device for the inner wall of a sleeve pipe in a building engineering, relates to the technical field of engineering construction, and comprises a trolley frame, a sliding frame is slidably arranged on the inner wall of the trolley frame, a motor is fixedly arranged on the inner wall of the sliding frame, a rotating shaft is rotatably arranged on the output end of the motor, a supporting frame is fixedly arranged on the side wall of the rotating shaft, and a plurality of steel wire balls are uniformly fixedly arranged on the side wall of the supporting frame. The application further comprises spraying devices arranged on the side wall of the rotating shaft and used for spraying rust removal agents on the inner wall of the sleeve pipe. The spraying devices comprise spray bottles, the ports of the spray bottles are threadedly connected with spray heads, the side wall of each spray head is provided with a spray hole, and the inside of each spray head is in communication with a hose. The application is characterized in that the spraying devices are arranged, the nylon rope is controlled to be contracted, the position of the spray head of the spray bottle at a distance is extruded, the stable and uniform spraying work of the rust removal agent on the inner side of a long steel pipe is facilitated, and thus the rust removal efficiency of the rusted iron slag on the inner side of the steel pipe in the later stage is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engineering construction, in particular to an automatic rust removal device for the inner wall of a sleeve pipe in building engineering. BACKGROUND

[0002] Engineering construction refers to the process of constructing a certain work. In the process of engineering construction, the inner wall of a welded steel pipe is prone to rust due to long storage time and a humid surrounding environment before processing. The automatic rust removal device uses a steel ball to rotate inside the steel pipe to polish and remove rust on the inner side of the steel pipe, thereby improving the use performance of the steel pipe.

[0003] In the process of polishing the inner side of the steel pipe, rust remover is usually sprayed on the inner side of the steel pipe to improve the efficiency of rusting iron slag on the inner side of the steel pipe. However, the inner side of the steel pipe is relatively narrow, and when the length of the steel pipe is slightly long, it is not convenient to uniformly spray the rust remover on the inner side of the long steel pipe in the narrow space, thereby reducing the rust removal effect on the inner side of the steel pipe.

[0004] Therefore, we propose an automatic rust removal device for the inner wall of a sleeve pipe in building engineering. SUMMARY

[0005] The purpose of the present application is to provide an automatic rust removal device for the inner wall of a sleeve pipe in building engineering to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an automatic rust removal device for the inner wall of a sleeve pipe in building engineering, comprising a cart frame, a sliding frame is installed on the inner wall of the cart frame, a motor is fixedly installed on the inner wall of the sliding frame, a rotating shaft is rotatably installed at the output end of the motor, a support frame is fixedly installed on the side wall of the rotating shaft, a plurality of steel balls are uniformly fixedly installed on the side wall of the support frame, and further comprising: a spraying device is respectively arranged on the side wall of the rotating shaft to spray rust remover on the inner wall of the sleeve pipe, the spraying device comprises a spray bottle, a spray head is threadedly connected to the port of the spray bottle, a spray hole is formed in the side wall of the spray head, a soft tube is in communication with the inside of the spray head, a gravity ball shell is fixedly connected to the port of the soft tube, and a plurality of through holes are uniformly formed in the side wall of the gravity ball shell; a wiping structure is respectively arranged on the side wall of the support frame to wipe and clean the residual liquid after cleaning the rust, the wiping structure comprises an elastic band in a circular ring structure, and the elastic band can be applied to different sizes of sleeve pipes through support; a positioning structure is respectively arranged on the side wall of the cart frame to position and support different sizes of sleeve pipes, the positioning structure comprises a connecting frame capable of accurately positioning a cylindrical sleeve pipe, and the lower side cross section of the connecting frame is an isosceles trapezoid.

[0007] The effects of the above components are that: by setting the spraying device, the nylon rope is controlled to shrink to realize the extrusion work on the position of the spray head of the spray bottle far away, which facilitates the stable and uniform spraying work of the rust remover inside the long steel pipe, thereby improving the rust removal efficiency of the rusted iron slag inside the steel pipe in the later period; by setting the wiping structure, the wiping treatment work of the elastic belt on the iron slag residue inside the steel pipe is facilitated, and the wiping treatment work of the residue and residue on the inner wall of the steel pipe is further improved; by setting the positioning structure, the positioning and clamping work of the steel pipe by the screw rod driving the connecting frame to the side of each other is facilitated, and the stability of the grinding of the rusted iron slag inside the steel pipe is further improved.

[0008] Preferably, the spraying device further comprises a mounting frame fixedly installed on the side wall of the rotating shaft, the mounting frame is formed by splicing a long strip and a circular ring, a bolt is threaded in the mounting frame, the spray bottle is located on the inner wall of the mounting frame, a positioning plate is fixedly installed on the end side of the spray head, the inner side of the positioning plate is in the shape of "U", a support frame with a "Y" shaped cross section is fixedly installed on the side wall of the rotating shaft, a nylon rope is fixedly installed on the surface of the support frame, the nylon rope is located on the inner side of the positioning plate, two mounting strips are fixedly installed on the side wall of the sliding frame, a circular ring frame is fixedly installed on the end side of the two mounting strips, six driving pieces are uniformly and slidingly installed in the circular ring frame, the end of the driving piece located on the inner side of the circular ring frame is an isosceles triangle plate, the end of the driving piece located on the outer side of the circular ring frame is a right triangle plate, two positioning blocks are fixedly installed on the side wall of the circular ring frame, a first automatic telescopic rod is fixedly installed on the surface of the positioning block, and a driving ring is fixedly installed on the output end of the two first automatic telescopic rods.

[0009] The effects of the above components are that: after the support frame is deeply inserted into the inside of the steel pipe, the two first automatic telescopic rods are started to expand, the first automatic telescopic rod drives the driving ring to move, the driving ring moves relative to the driving piece at the position of the right trapezoidal plate, which facilitates the driving work of the multiple driving pieces to the side of each other, and after the driving piece is driven to a certain position, the nylon rope is deformed by the extrusion of the driving piece during the rotation of the motor driving the rotating shaft, at this time, the straight line positions on both sides of the nylon rope are contracted, which can realize the extrusion work of the spray head, thereby realizing the spraying work of the rust remover inside the spray bottle, the positioning plate plays a role in limiting the nylon rope from being clamped at the position of the spray head, and the gravitational sphere shell always falls to the lowest position on the bottom side of the spray bottle under the action of its own gravity, which facilitates the stable use of the rust remover inside the spray bottle, the mounting frame and the spray bottle are detachably connected, which facilitates the stable use of the rust remover, and after the nylon rope passes through the driving pieces in the circular array, the nylon rope moves relative to the driving pieces, thereby facilitating the uniform smearing work of the rust remover.

[0010] Preferably, the side wall of the nylon rope is fixedly connected with a fixing cylinder, the side wall of the fixing cylinder is rotationally installed with a limiting wheel, and the side close to each other of the driving piece and the circular ring frame is fixedly installed with a first spring.

[0011] The above-mentioned components achieve the effects that the first telescopic rod is retracted, the driving piece is reset by the elastic force of the first spring, the control of the spraying time of the spray is facilitated, the appropriate use of the rust remover inside the steel pipe is facilitated, the limiting wheel and the driving piece move relatively, the friction between the nylon rope and the side wall of the driving piece is reduced, and the service life of the nylon rope is improved.

[0012] Preferably, the side wall of the shaft is fixedly installed with two limiting strips, the inner side of the two limiting strips is rotationally installed with a pulley, and the nylon rope penetrates through the limiting strips.

[0013] The above-mentioned components achieve the effects that the nylon rope slides on the surface of the pulley, the effect of changing the pulling force of the nylon rope is achieved, and the pressing work of the position of the spray head is further facilitated.

[0014] Preferably, the wiping structure further comprises four rectangular plates fixedly installed on the surface of the support frame, a positioning frame fixedly installed on the end side of the four rectangular plates, the positioning frame is a regular octagon structure, a plurality of sliding frames slidingly arranged in the positioning frame, a support plate fixedly installed on the end side of the sliding frame in a bent structure, an elastic pad glued to the surface of the support plate, the cross section of the elastic pad is a semicircle, and the elastic belt is sleeved on the surface of the eight elastic pads.

[0015] The above-mentioned components achieve the effects that after the inner wall of the steel pipe is rusted, the rotation of the shaft is started to realize the wiping work of the residual liquid and rust slag inside the steel pipe, the elastic pad is filled between the elastic belt and the steel pipe, and the stability of wiping the iron slag inside the steel pipe is improved.

[0016] Preferably, the side close to each other of the four rectangular plates is fixedly connected with a connecting plate, the surface of the connecting plate is fixedly installed with a second automatic telescopic rod, the output end of the second automatic telescopic rod is fixedly installed with a driving cover, and the driving cover is in a circular truncated cone structure.

[0017] The above-mentioned components achieve the effects that the second automatic telescopic rod is started to retract, the driving cover drives a plurality of sliding frames to expand in the positioning frame at the same time, and the expansion work of the elastic belt outside a plurality of support plates is realized.

[0018] Preferably, eight connecting ropes are fixedly installed between the elastic belt and the positioning frame, the inner side of the elastic belt is pulled into a conical cavity structure, and a plurality of fluffs are fixedly connected to the outer surface of the elastic belt.

[0019] The effect achieved by the above-mentioned components is that during the supporting of the elastic belt, the elastic belt is pulled into a conical structure at some positions, thereby facilitating the collection of the dropped residue and liquid during the wiping process.

[0020] Preferably, the positioning structure further comprises two long plates fixedly installed on the side walls of the trolley frame, guide rail strips fixedly installed on one side of the two long plates close to each other, the connecting frames slidingly installed on the surfaces of the guide rail strips, screw rods rotatably installed in the interiors of the two long plates, opposite threads formed on the two sides of the screw rods, the screw rods and the connecting frames internally screwed together, and two anti-skid pads glued to the inner walls of the connecting frames.

[0021] The effect achieved by the above-mentioned components is that the screw rods in the interiors of the long plates are rotated to drive the two connecting frames to move towards one side at the same time, thereby facilitating the clamping of the steel pipe, the screw rods are continuously rotated to facilitate the clamping and positioning of the steel pipe, the steel pipe is positioned between the two connecting frames, and the stable cleaning of the rust and iron slag on the inner wall of the steel pipe is facilitated, and the anti-skid pads are filled between the connecting frames and the steel pipe to further improve the stability of the positioning of the steel pipe.

[0022] Preferably, the side walls of the long plates are fixedly installed with circular rings, a plurality of positioning holes are uniformly formed on the surface of the circular ring, a protruding strip is arranged on the end side of the screw rod, a positioning pin is slidingly arranged in the interior of the protruding strip, the size of the positioning pin is matched with the size of the positioning hole, a stop ring is fixedly installed on the side wall of the positioning pin, a second spring is sleeved on the surface of the positioning pin, and the second spring is fixedly installed between the stop ring and the protruding strip of the screw rod.

[0023] The effect achieved by the above-mentioned components is that after the positioning of the steel pipe, the positioning pin is loosened, the positioning pin is clamped on the inner wall of the corresponding positioning hole of the circular ring under the elastic force of the second spring between the stop ring and the protruding strip of the screw rod, the fixing of the rotated screw rod is realized, and the screw rod is prevented from being twisted during use.

[0024] Preferably, the side walls of the trolley frame are fixedly installed with support rods, and two rows of positioning strips are fixedly installed on the side walls of the support rods.

[0025] The effect achieved by the above-mentioned components is that the steel pipe is placed between the two rows of positioning strips on the support rods, and the preliminary supporting and positioning of the steel pipe are realized.

[0026] Compared with the prior art, the present application has the following advantages:

[0027] 1. The present application is through the rotation of the steel wire ball matched with the support frame, so that the inner wall of the large diameter steel pipe is rusted simply and quickly, and the strength of the steel pipe is ensured, and the inner wall of the steel pipe is rusted automatically through the movement of the sliding frame in the inside of the trolley frame, the spraying device is set, the nylon rope is controlled to shrink to realize the extrusion work of the position of the spray head of the remote spray bottle, the stable and uniform spraying work of the inner side of the long steel pipe is facilitated, and the rust removal efficiency of the rust and iron slag on the inner side of the steel pipe in the later period is improved.

[0028] 2. The present application is through the setting of the wiping structure, which facilitates the wiping treatment work of the iron slag residue in the inner side of the steel pipe by the elastic belt, and further improves the wiping treatment work of the residue and residue in the inner wall of the steel pipe.

[0029] 3. The present application is through the setting of the positioning structure, which facilitates the positioning and clamping work of the steel pipe by the screw rod driving the connecting frame to the side of each other, and further improves the stability of the rust and iron slag polishing in the inner side of the steel pipe. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is the overall structure schematic diagram of the present application;

[0031] Figure 2 It is the structure schematic diagram of the trolley frame in the present application;

[0032] Figure 3 It is the structure schematic diagram of the sliding frame in the present application;

[0033] Figure 4 It is another angle structure schematic diagram of the present application; Figure 3

[0034] Figure 5 It is the enlarged view of A in the present application; Figure 3

[0035] Figure 6 It is the local structure schematic diagram of the spraying device in the present application;

[0036] Figure 7 It is the structure schematic diagram of the driving piece in the present application;

[0037] Figure 8 It is the structure schematic diagram of the wiping structure in the present application;

[0038] Figure 9 It is the structure schematic diagram of the positioning structure in the present application;

[0039] Figure 10 It is the enlarged view of B in the present application; Figure 9

[0040] ​​​In the figure: 1-trolley frame; 2-slideway frame; 3-motor; 4-rotation shaft; 5-support frame; 6-steel wire ball; 7-spraying device; 701-circular ring frame; 702-limiting strip; 703-nylon rope; 704-mounting frame; 705-bolt; 706-spraying bottle; 707-spraying head; 708-spraying hole; 709-positioning plate; 710-pulley; 711-hose; 712-gravity ball shell; 713-limiting wheel; 714-support frame; 715-fixing cylinder; 716-mounting strip; 717-driving ring; 718-positioning block; 719-first automatic telescopic rod; 720-driving sheet; 721-first spring; 8-wiping structure; 801-positioning frame; 802-sliding frame; 803-support plate; 804-elastic pad; 805-second automatic telescopic rod; 806-driving cover; 807-connecting rope; 808-elastic band; 809-rectangular plate; 810-connecting plate; 9-positioning structure; 901-long plate; 902-supporting rod; 903-positioning strip; 904-guide rail strip; 905-screw rod; 906-connecting frame; 907-anti-skid pad; 908-blocking ring; 909-second spring; 910-positioning hole; 911-circular ring; 912-positioning pin. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0042] Please refer to Figures 1-10The application provides a technical scheme: an automatic rust removal device for the inner wall of a sleeve for building engineering, which comprises a trolley frame 1, a sliding frame 2 is slidably arranged on the inner wall of the trolley frame 1, a motor 3 is fixedly arranged on the inner wall of the sliding frame 2, a rotating shaft 4 is rotatably arranged on the output end of the motor 3, a support frame 5 is fixedly arranged on the side wall of the rotating shaft 4, a plurality of steel wire balls 6 are uniformly fixedly arranged on the side wall of the support frame 5, and the device further comprises: spraying devices 7 arranged on the side wall of the rotating shaft 4 and used for spraying rust removal agent on the inner wall of the sleeve, wherein the spraying device 7 comprises a spray bottle 706, a spray head 707 is threadedly connected to the port of the spray bottle 706, a spray hole 708 is formed in the side wall of the spray head 707, a hose 711 is in communication with the interior of the spray head 707, a gravity ball shell 712 is fixedly connected to the port of the hose 711, and a plurality of through holes are uniformly formed in the side wall of the gravity ball shell 712; the spraying device 7 is arranged, the nylon rope 703 is controlled to be retracted to realize extrusion work on the position of the spray head 707 of the spray bottle 706 far away, the stable and uniform spraying work of the rust removal agent on the inner side of the long steel pipe is facilitated, and therefore the rust removal efficiency of the rusted iron slag on the inner side of the steel pipe in the later period is improved; the wiping structures 8 are arranged on the side wall of the support frame 5 and used for wiping and cleaning the residual liquid after rust removal, the wiping structure 8 comprises an elastic band 808 in a ring structure, and the elastic band 808 is applicable to sleeves of different sizes through support; the wiping structure 8 is arranged, the wiping treatment work of the residual liquid of the iron slag on the inner side of the steel pipe is facilitated by using the elastic band 808, and the wiping treatment work of the residual liquid and the residual slag on the inner wall of the steel pipe is further improved; the positioning structures 9 are arranged on the side wall of the trolley frame 1 and used for positioning and supporting sleeves of different sizes, the positioning structure 9 comprises a connecting frame 906 capable of accurately positioning a cylindrical sleeve, and the lower side of the connecting frame 906 is in the shape of an isosceles trapezoid. The positioning structure 9 is arranged, the positioning and clamping work of the steel pipe is facilitated by simultaneously driving the connecting frame 906 to move towards each other on one side through the screw rod 905, and the stability of the rusted iron slag on the inner side of the steel pipe is further improved.

[0043] The specific arrangement and role of the spraying device 7, the wiping structure 8 and the positioning structure 9 will be described below.

[0044] As Figures 1-7As shown, the spraying device 7 further comprises a mounting rack 704 fixedly installed on the side wall of the rotating shaft 4, the mounting rack 704 is spliced by a long strip and a circular ring, the inside of the mounting rack 704 is threaded with a bolt 705, a spray bottle 706 is located on the inner wall of the mounting rack 704, a positioning plate 709 is fixedly installed on the end side of the spray head 707, the inner side of the positioning plate 709 is in a "U" shape, the side wall of the rotating shaft 4 is fixedly installed with a support frame 714 in a "Y" shape structure, a nylon rope 703 is fixedly installed on the surface of the support frame 714, the nylon rope 703 is located on the inner side of the positioning plate 709, two mounting strips 716 are fixedly installed on the side wall of the sliding frame 2, a circular ring frame 701 is fixedly installed on the end side of the two mounting strips 716, six driving pieces 720 are uniformly and slidingly installed in the circular ring frame 701, one end of the driving piece 720 located on the inner side of the circular ring frame 701 is an isosceles triangle plate, the other end of the driving piece 720 located on the outer side of the circular ring frame 701 is a right triangle plate, two positioning blocks 718 are fixedly installed on the side wall of the circular ring frame 701, a first automatic telescopic rod 719 is fixedly installed on the surface of the positioning block 718, a driving ring 717 is fixedly installed on the output end of the two first automatic telescopic rods 719. After the support frame 5 is deeply inserted into the steel pipe, the two first automatic telescopic rods 719 are started to expand, the first automatic telescopic rod 719 drives the driving ring 717 to move, the driving ring 717 moves relative to the driving piece 720 in the position of the right trapezoidal plate, which facilitates the driving work of the multiple driving pieces 720 to the side, after the driving piece 720 is driven to a certain position, the nylon rope 703 is deformed by the extrusion of the driving piece 720 during the rotation of the rotating shaft 4 driven by the motor 3, at this time the straight line position on both sides of the nylon rope 703 is contracted, which can realize the extrusion work of the spray head 707, so as to realize the spraying work of the rust remover in the spray bottle 706. The positioning plate 709 plays a role in limiting the nylon rope 703 from being stuck in the position of the spray head 707, the gravitational sphere 712 always falls to the lowest position on the bottom side of the spray bottle 706 under the action of its own gravity, which facilitates the stable use of the rust remover in the spray bottle 706. The mounting rack 704 and the spray bottle 706 are detachable, which facilitates the stable use of the rust remover, after the nylon rope 703 passes through the driving pieces 720 in the circular array, it moves relative to the driving piece 720, thereby facilitating the uniform application of the rust remover.

[0045] The side wall of the nylon rope 703 is fixedly connected with a fixing cylinder 715, the side wall of the fixing cylinder 715 is rotationally installed with a limiting wheel 713, and the side close to each other of the driving piece 720 and the circular ring frame 701 is fixedly installed with a first spring 721. The first telescopic rod is retracted, the driving piece 720 is reset by the elastic force of the first spring 721, the control work of the spraying time of the spray is facilitated, the appropriate use work of the rust remover inside the steel pipe is facilitated, the limiting wheel 713 and the driving piece 720 relatively move, the friction between the nylon rope 703 and the side wall of the driving piece 720 is reduced, and the service life of the nylon rope 703 is improved. The side wall of the rotating shaft 4 is fixedly installed with two limiting strips 702, the inner side of the two limiting strips 702 is rotationally installed with a pulley 710, and the nylon rope 703 penetrates through the limiting strips 702. The nylon rope 703 slides on the surface of the pulley 710, changes the pulling effect of the nylon rope 703, and further facilitates the pressing work of the position of the spray head 707.

[0046] As shown in Figures 1-4 and Figure 8 The wiping structure 8 further includes four rectangular plates 809 fixedly installed on the surface of the support frame 5, the end side of the four rectangular plates 809 is fixedly installed with a positioning frame 801, the positioning frame 801 is a regular octagon structure, a plurality of sliding frames 802 are slidingly arranged in the positioning frame 801, the end side of the sliding frame 802 is fixedly installed with a support plate 803 of a bending structure, the surface of the support plate 803 is glued with an elastic pad 804, the cross section of the elastic pad 804 is a semicircle, and an elastic belt 808 is sleeved on the surface of the eight elastic pads 804. After the inner wall of the steel pipe is rusted, the rotating shaft 4 is started to rotate, the wiping work of the residual liquid and rust slag inside the steel pipe is realized, the elastic pad 804 is filled between the elastic belt 808 and the steel pipe, and the stability of wiping the iron slag inside the steel pipe is improved.

[0047] The side close to each other of the four rectangular plates 809 is fixedly connected with a connecting plate 810, the surface of the connecting plate 810 is fixedly installed with a second automatic telescopic rod 805, the output end of the second automatic telescopic rod 805 is fixedly installed with a driving cover 806, and the driving cover 806 is a circular truncated cone structure. The second automatic telescopic rod 805 is started to retract, the driving cover 806 drives a plurality of sliding frames 802 to expand in the positioning frame 801 at the same time, and the opening work of the elastic belt 808 outside a plurality of support plates 803 is realized. Eight connecting ropes 807 are fixedly installed between the elastic belt 808 and the positioning frame 801, the inner side of the elastic belt 808 is pulled into a conical cavity structure, and a plurality of furs are fixedly connected to the outer surface of the elastic belt 808. In the process of supporting the elastic belt 808, part of the elastic belt 808 is pulled into a conical structure, so that the collection work of the falling rust slag and residual liquid in the wiping process is facilitated.

[0048] As shown in Figures 1-2 andFigure 9 And Figure 10 As shown in the figure, the positioning structure 9 further comprises two long plates 901 fixedly installed on the side walls of the trolley frame 1, a guide rail 904 fixedly installed on one side of the two long plates 901 close to each other, and a connecting frame 906 slidingly installed on the surface of the guide rail 904. A screw rod 905 is rotatably installed inside the two long plates 901, and opposite threads are formed on both sides of the screw rod 905. The screw rod 905 is screw-connected with the connecting frame 906 inside, and two anti-skid pads 907 are glued to the inner wall of the connecting frame 906. Rotating the screw rod 905 inside the long plate 901 drives the two connecting frames 906 to move towards the same side, thereby facilitating the clamping work of the steel pipe. Continuing to drive the screw rod 905 to rotate facilitates the clamping and positioning work of the steel pipe, so that the steel pipe is positioned between the two connecting frames 906, thereby facilitating the stable cleaning work of the rust and iron slag on the inner wall of the steel pipe. The anti-skid pads 907 are filled between the connecting frames 906 and the steel pipe, further improving the stability of the positioning of the steel pipe.

[0049] A circular ring 911 is fixedly installed on the side wall of the long plate 901, a plurality of positioning holes 910 are uniformly formed on the surface of the circular ring 911, a protrusion is arranged on the end side of the screw rod 905, a positioning pin 912 is slidingly arranged inside the protrusion, the size of the positioning pin 912 is matched with the size of the positioning hole 910, a stop ring 908 is fixedly installed on the side wall of the positioning pin 912, a second spring 909 is sleeved on the surface of the positioning pin 912, and the second spring 909 is fixedly installed between the stop ring 908 and the protrusion on the screw rod 905. After positioning the steel pipe, the positioning pin 912 is loosened, and at this time the positioning pin 912 is clamped on the inner wall of the corresponding positioning hole 910 of the circular ring 911 under the elastic force of the second spring 909 between the stop ring 908 and the protrusion of the screw rod 905. At this time, the fixing work of the rotated screw rod 905 can be realized, and the twisting of the screw rod 905 during use is avoided. The side wall of the trolley frame 1 is fixedly installed with a support rod 902, and two rows of positioning strips 903 are uniformly fixedly installed on the side wall of the support rod 902. The steel pipe is placed between the two rows of positioning strips 903 on the support rod 902, and at this time the preliminary supporting and positioning work of the steel pipe can be realized.

[0050] Working principle: through the rotation of the steel ball 6 matched with the support frame 5, the inner wall of the large-diameter steel pipe is rusted simply and quickly, and the strength of the steel pipe is ensured, and the inner wall of the steel pipe is rusted automatically through the movement of the sliding frame 2 in the inside of the trolley frame 1, and the spraying device 7 is set, after the support frame 5 is deeply inserted into the inside of the steel pipe, the two first automatic telescopic rods 719 are started to stretch, the first automatic telescopic rod 719 drives the driving ring 717 to move, the driving ring 717 moves relative to the driving piece 720 of the right trapezoidal plate position, which facilitates the driving work of the multiple driving pieces 720 to the side, the driving piece 720 is driven to a certain position, and in the process of the motor 3 driving the rotating shaft 4 to rotate, the nylon rope 703 is deformed by the extrusion of the driving piece 720, at this time the straight line position of the nylon rope 703 on both sides is contracted, which can realize the extrusion work of the spray head 707, so that the spraying work of the rust remover in the spray bottle 706 can be realized, the setting of the positioning plate 709 plays a role in limiting the nylon rope 703 from being stuck in the position of the spray head 707, the gravitational sphere shell 712 always falls to the lowest position on the bottom side of the spray bottle 706 under the action of its own gravity, which facilitates the stable use of the rust remover in the spray bottle 706, the detachable structure between the mounting bracket 704 and the spray bottle 706 is set, which facilitates the stable use of the rust remover, wherein the nylon rope 703 slides on the surface of the pulley 710 to change the tension effect of the nylon rope 703, which further facilitates the pressing work of the position of the spray head 707, when the nylon rope 703 passes through the circumferential array of the driving piece 720, the driving piece 720 moves relative to the driving piece 720, which facilitates the uniform application of the rust remover, the first telescopic rod is retracted, the driving piece 720 is reset under the action of the first spring 721, which facilitates the control of the spraying time of the spray, facilitates the appropriate use of the rust remover in the inside of the steel pipe, the limiting wheel 713 moves relative to the driving piece 720, which can reduce the friction between the nylon rope 703 and the side wall of the driving piece 720, thereby improving the service life of the nylon rope 703, by setting the spraying device 7, the contraction of the nylon rope 703 realizes the extrusion work of the position of the spray head 707 of the remote spray bottle 706, which facilitates the stable and uniform spraying work of the rust remover in the inside of the long steel pipe, thereby improving the rust removal efficiency of the rusted iron slag in the inside of the steel pipe.

[0051] After the inner wall of the steel pipe is rusted, the second automatic telescopic rod 805 is started to retract, at this time the driving cover 806 drives multiple sliding frames 802 to expand inside the positioning frame 801, at this time the expansion of the multiple supporting plates 803 outside the elastic belt 808 can be realized, at this time the rotation of the rotating shaft 4 is started, which can realize the wiping work of the residual liquid and rust slag inside the steel pipe, the elastic pad 804 is filled between the elastic belt 808 and the steel pipe, which improves the stability of the wiping of the iron slag inside the steel pipe, and further improves the treatment effect of the iron slag inside the steel pipe. The supporting plate 803 with a bending structure facilitates the sleeving work of the steel pipe outside the wiping structure 8. During the supporting of the elastic belt 808, part of the elastic belt 808 is pulled into a conical structure, thereby facilitating the collection of the falling iron slag and residual liquid during wiping. The driving cover 806 is driven in the opposite direction, at this time the elastic belt 808 will be retracted, thereby facilitating the wiping work of the steel pipe inside with different structure and size. The lint on the elastic belt 808 will adhere to the surface of the lint, improving the collection effect of the iron slag. By setting the wiping structure 8, the wiping and treatment of the iron slag and residual liquid inside the steel pipe by the elastic belt 808 are facilitated, and the wiping and treatment of the residual liquid and slag on the inner wall of the steel pipe are further improved.

[0052] The steel pipe is placed between the two positioning strips 903 on the supporting rod 902, at this time the preliminary supporting and positioning work of the steel pipe can be realized, at this time the positioning pin 912 is pulled out from the inner wall of the positioning hole 910, at this time the screw rod 905 inside the long plate 901 is rotated, the screw rod 905 drives the two connecting frames 906 to move towards each other, thereby facilitating the clamping work of the steel pipe. Continue to drive the screw rod 905 to rotate, which facilitates the clamping and positioning work of the steel pipe, and positions the steel pipe between the two connecting frames 906, thereby facilitating the stable cleaning work of the rusted iron slag on the inner wall of the steel pipe. The anti-skid pad 907 is filled between the connecting frame 906 and the steel pipe, which further improves the stability of the positioning of the steel pipe. After the steel pipe is positioned, the positioning pin 912 is loosened, at this time the positioning pin 912 is clamped on the inner wall of the corresponding positioning hole 910 of the circular ring 911 by the elastic force of the second spring 909 between the stop ring 908 and the convex strip of the screw rod 905, at this time the fixing work of the rotating screw rod 905 can be realized, which avoids the twisting of the screw rod 905 during use. By setting the positioning structure 9, the positioning and clamping work of the steel pipe by the screw rod 905 driving the connecting frames 906 to move towards each other is facilitated, and the stability of the polishing of the rusted iron slag inside the steel pipe is further improved.

[0053] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0054] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic rust removal device for the inner wall of casings in building engineering, comprising a trolley frame (1), characterized in that: The inner wall of the trolley frame (1) is slidably fitted with a slide (2), the inner wall of the slide (2) is fixedly fitted with a motor (3), the output end of the motor (3) is rotatably fitted with a rotating shaft (4), the side wall of the rotating shaft (4) is fixedly fitted with a support frame (5), the side wall of the support frame (5) is evenly fitted with several steel wool balls (6), and it also includes: a spraying device (7) respectively set on the side wall of the rotating shaft (4) for spraying rust remover onto the inner wall of the sleeve, the spraying device (7) includes a spray bottle (706), the port of the spray bottle (706) is threadedly connected to a nozzle (707), the side wall of the nozzle (707) is provided with a spray hole (708), the inside of the nozzle (707) is connected to a hose (711), the port of the hose (711) is fixedly connected to a gravity sphere (712), the side wall of the gravity sphere (712) is evenly provided with several through holes; Wiping structures (8) are respectively installed on the side walls of the support frame (5) for wiping and cleaning the residual liquid of rust after cleaning. The wiping structure (8) includes an elastic band (808) with a circular structure. The elastic band (808) can be used to support different sizes of sleeves. Positioning structures (9) are respectively installed on the side wall of the trolley frame (1) to position and support sleeves of different sizes. The positioning structure (9) includes a connecting frame (906) that can accurately position cylindrical sleeves. The lower cross section of the connecting frame (906) is an isosceles trapezoid. The spraying device (7) also includes a mounting bracket (704) fixedly installed on the side wall of the rotating shaft (4). The mounting bracket (704) is composed of a strip and a ring. Bolts (705) are threaded through the internal threads of the mounting bracket (704). The spray bottle (706) is located on the inner wall of the mounting bracket (704). A positioning plate (709) is fixedly installed on the end side of the nozzle (707). The inner cross-section of the positioning plate (709) is "U". A support frame (714) with a "Y" shaped cross-section is fixedly installed on the side wall of the rotating shaft (4). A nylon rope (703) is fixedly installed on the surface of the support frame (714). The nylon rope (703) is located inside the positioning plate (709). The slide... (2) Two mounting strips (716) are fixedly installed on the side wall. A ring frame (701) is fixedly installed on the end side of the two mounting strips (716). Six drive plates (720) are evenly slidably installed inside the ring frame (701). One end of the drive plate (720) located inside the ring frame (701) is an isosceles triangle plate, and the other end of the drive plate (720) located outside the ring frame (701) is a right triangle plate. Two positioning blocks (718) are fixedly installed on the side wall of the ring frame (701). A first automatic telescopic rod (719) is fixedly installed on the surface of the positioning block (718). A drive ring (717) is fixedly installed on the output end of the two first automatic telescopic rods (719).

2. The automatic rust removal device for the inner wall of a casing in building engineering according to claim 1, characterized in that: A fixed cylinder (715) is fixedly connected to the side wall of the nylon rope (703), and a limit wheel (713) is rotatably installed on the side wall of the fixed cylinder (715). A first spring (721) is fixedly installed on the side of the drive plate (720) and the ring frame (701) that are close to each other.

3. The automatic rust removal device for the inner wall of a casing in building engineering according to claim 1, characterized in that: Two limiting strips (702) are fixedly installed on the side wall of the rotating shaft (4), and pulleys (710) are rotatably installed on the inner side of the two limiting strips (702). The nylon rope (703) passes through the limiting strips (702).

4. An automatic rust removal device for the inner wall of a casing in building engineering according to claim 1, characterized in that: The wiping structure (8) also includes four rectangular plates (809) fixedly installed on the surface of the support frame (5). Positioning frames (801) are fixedly installed on the ends of the four rectangular plates (809). The positioning frames (801) are regular octagonal structures. Several sliding frames (802) are slidably inserted inside the positioning frames (801). A bent support plate (803) is fixedly installed on the ends of the sliding frames (802). An elastic pad (804) is glued to the surface of the support plate (803). The cross-section of the elastic pad (804) is semi-circular. The elastic band (808) is sleeved on the surface of the eight elastic pads (804).

5. An automatic rust removal device for the inner wall of a casing in building engineering according to claim 4, characterized in that: A connecting plate (810) is fixedly connected to one side of the four rectangular plates (809) that are close to each other. A second automatic telescopic rod (805) is fixedly installed on the surface of the connecting plate (810). A drive cover (806) is fixedly installed at the output end of the second automatic telescopic rod (805). The drive cover (806) has a frustum structure.

6. An automatic rust removal device for the inner wall of a casing in building engineering according to claim 4, characterized in that: Eight connecting ropes (807) are fixedly installed between the elastic band (808) and the positioning frame (801). The inner side of the elastic band (808) is stretched into a conical cavity structure, and a number of fibers are fixedly connected to the outer surface of the elastic band (808).

7. An automatic rust removal device for the inner wall of a casing in building engineering according to claim 1, characterized in that: The positioning structure (9) also includes two long plates (901) fixedly installed on the side wall of the trolley frame (1). A guide rail (904) is fixedly installed on the side of the two long plates (901) that are close to each other. The connecting frame (906) is slidably installed on the surface of the guide rail (904). A screw (905) is rotatably installed inside the two long plates (901). The two sides of the screw (905) are provided with threads in opposite directions. The screw (905) and the connecting frame (906) are internally threaded. Two anti-slip pads (907) are glued to the inner wall of the connecting frame (906).

8. An automatic rust removal device for the inner wall of a casing in building engineering according to claim 7, characterized in that: A circular ring (911) is fixedly installed on the side wall of the long plate (901). A plurality of positioning holes (910) are evenly opened on the surface of the circular ring (911). A protrusion is provided on the end side of the screw (905). A positioning pin (912) is slidably inserted inside the protrusion. The size of the positioning pin (912) is adapted to the size of the positioning hole (910). A retaining ring (908) is fixedly installed on the side wall of the positioning pin (912). A second spring (909) is sleeved on the surface of the positioning pin (912). The second spring (909) is fixedly installed between the retaining ring (908) and the protrusion on the screw (905).

9. An automatic rust removal device for the inner wall of a casing in building engineering according to claim 1, characterized in that: The side wall of the trolley frame (1) is fixedly installed with a support rod (902), and two rows of positioning strips (903) are evenly fixedly installed on the side wall of the support rod (902).

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