Metal elbow rust removal device

Abstract

The utility model relates to the technical field of rust removal equipment, and discloses a metal elbow rust removal device which comprises a circular moving seat, a cavity is formed in the circular moving seat, water flowing holes communicated with the interior of the cavity are formed in the side face of the circular moving seat at equal intervals, and a plurality of high-pressure spray heads matched with the water flowing holes are arranged on the side face of the circular moving seat. A water inlet pipe communicated with the interior of the cavity is fixedly mounted on one surface of the circular moving seat. The circular moving seat is arranged, the high-pressure nozzles are mounted on the side face of the circular moving seat, the circular moving seat is mounted at one end in the metal bent pipe through the supporting unit and connected with the traction ring through the traction rope, and the circular moving seat is pulled by the traction rope to move at a constant speed in the metal bent pipe; the water inlet pipe conveys high-pressure water flow to the high-pressure spray head, the high-pressure spray head sprays the high-pressure water flow to derust the inner side wall of the metal bent pipe, the whole device is simple, operation is convenient, the derusting mode is environmentally friendly, cost is low, and the derusting efficiency of the inner side wall of the metal bent pipe is improved.

Description

Technical Field

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

[0002] After long-term use, metal pipes will be rusted due to the lack of protective paint or the peeling of protective paint on the metal wall, which leads to long-term contact between the metal wall and air or other corrosive substances. If the rust is allowed to continue, the metal pipe will gradually reduce its structural strength and lose its function. The existing methods of surface rust removal for metal pipes include grinding, rust removal by immersion in rust removal liquid, high-pressure water rust removal, etc. Among them, high-pressure water rust removal is cheaper and more environmentally friendly, and its application range is becoming wider and wider.

[0003] In order to improve the effect of rust removal on the surface of metal parts, the prior art has made many improvements to the rust removal device, such as the patent with patent publication number CN218965007U, which discloses a rust cleaning device, including a base, a rotating part and a cleaning part, wherein the rotating part includes: a fixed plate: a bend is welded on the top outer wall thereof, and a mounting plate is welded on the end of the bend away from the fixed plate; a rotating motor: it is fixed to the outer wall of one side of the fixed plate, and the output end of the rotating motor is fixed with a support frame by a pin; a rotating frame: it is movably connected to the inner wall of the through hole opened on the surface of the mounting plate, and the rotating frame and the supporting frame are welded and fixed by an intermediate rod; a threaded column: it is movably connected to the inner wall of the threaded hole opened on the surface of the supporting frame and the rotating frame by a thread; a fastening plate: it is fixed to one end of the threaded column by a pin. The utility model can flip the steel structure after the rust removal on the upper surface and side of the steel structure is completed by providing a rotating part, so as to facilitate the rust removal on the lower surface of the steel structure, and the rotating part can be driven to rise by a hydraulic cylinder, thereby providing sufficient space for the steel structure to rotate.

[0004] The above patent has obvious beneficial effects, but still has the following shortcomings in actual operation:

[0005] In the above-mentioned comparative documents, rust is removed from the surface of metal parts by a rust removal disk, and in reality, the inner walls of many metal workpieces also need to be rusted, such as metal bent pipes and other workpieces. In the prior art, a grinding device adapted to the inner hole diameter of the metal workpiece is inserted into the metal pipe to grind and remove rust from its inner wall. However, for the metal bent pipe, it is difficult for the grinding device to move in a curve in the pipe, so the rust removal effect on the inner wall of the metal bent pipe is poor. Therefore, the art urgently needs to improve the metal bent pipe rust removal device to solve the defects of the prior art. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a rust removal device for a metal bent pipe, which improves the efficiency of rust removal on the inner wall of the metal bent pipe.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rust removal device for a metal bent pipe, comprising a circular movable seat, a cavity is opened in the circular movable seat, water holes connected to the interior of the cavity are opened at equal intervals on the side of the circular movable seat, a plurality of high-pressure nozzles adapted to the water holes are arranged on the side of the circular movable seat, a water inlet pipe connected to the interior of the cavity is fixedly installed on one side of the circular movable seat, a traction ring is fixedly installed on the side of the circular movable seat away from the water inlet pipe, an adjustable support unit is arranged on the side of the circular movable seat, the support unit is used to support the circular movable seat, an anti-fall unit is arranged on the side of the support unit, the anti-fall unit is used to prevent the circular movable seat from tipping over.

[0008] Preferably, the support unit includes an arc-shaped plate fixedly connected to the two sides of the circular movable seat, the side surfaces of the arc-shaped plate are slidably connected with support rods, a movable roller is rotatably connected between the side surfaces of the two support rods away from the arc-shaped plates, a fixed plate is fixedly connected between the side surfaces of the two support rods close to the arc-shaped plates, an arc-shaped guide rod is passed through the two fixed plates, the arc-shaped guide rod passes through the circular movable seat and is concentric with the arc-shaped plate, a first spring is fixedly connected between the side surfaces of the two fixed plates, and a makeshift opening for making way for the first spring is opened through the circular movable seat.

[0009] Preferably, a sliding block is fixedly mounted on one end of the support rod close to the arc-shaped plate, and a sliding groove adapted to the sliding block is provided on the side surface of the arc-shaped plate.

[0010] Preferably, the anti-fall unit includes a hollow rod fixedly mounted on the opposite sides of the two arc-shaped plates, a moving rod with one end extending to the outside being slidably connected inside the hollow rod, an auxiliary wheel being rotatably connected to one end of the moving rod away from the hollow rod, and a second spring being fixedly connected between the inner wall of the hollow rod and one end of the moving rod.

[0011] Preferably, baffles are provided at both ends of the arc-shaped guide rod.

[0012] Preferably, a fastening bolt is passed through the baffle, and one end of the fastening bolt is threadedly connected to the end of the arc-shaped guide rod.

[0013] Preferably, the sliding block has a T-shaped cross section, the sliding groove is adapted to the sliding block, and the support rod is fixedly mounted to the sliding block via a fastener.

[0014] In view of the deficiencies of the prior art, the utility model provides a metal elbow rust removal device, which overcomes the deficiencies of the prior art. The beneficial effects of the utility model are:

[0015] 1. In the utility model, a circular movable seat is provided, and a plurality of high-pressure nozzles are installed on the side of the circular movable seat. The circular movable seat is installed at one end inside the metal elbow through a supporting unit, and is connected to the traction ring through a traction rope. The circular movable seat is pulled by the traction rope to move at a uniform speed inside the metal elbow. The water inlet pipe conveys high-pressure water to the high-pressure nozzle, and the high-pressure nozzle sprays high-pressure water to remove rust from the inner wall of the metal elbow. The overall device is simple and easy to operate. The rust removal method is environmentally friendly and low in cost, thereby improving the efficiency of rust removal on the inner wall of the metal elbow.

[0016] 2. In the utility model, by setting a plurality of support rods that can move on the side of the arc plate, in conjunction with the first spring and the fixed plate, the inner wall of different metal elbows can be derusted within a certain range, thereby improving the application range of the overall device.

[0017] 3. In the utility model, an anti-falling unit is provided, and two moving rods and auxiliary wheels are supported on the inner wall of the metal curved pipe to support the circular moving seat, thereby improving the stability of the circular moving seat in the metal curved pipe. At the same time, in conjunction with the second spring, the circular moving seat can be supported under different pipe diameters within a certain range, thereby improving the application range of the overall device.

[0018] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0020] Figure 1 It is a schematic diagram of the structure of the circular movable seat, etc. in the utility model;

[0021] Figure 2 This is a schematic diagram of the structure in which the circular movable seat in the utility model is installed inside one end of the metal elbow;

[0022] Figure 3 It is a structural schematic diagram of the circular movable seat in the utility model from another perspective;

[0023] Figure 4 It is a schematic structural diagram of a partial cross-section of the circular movable seat, etc. in the utility model;

[0024] Figure 5 It is a structural schematic diagram of a partial cross-section of the hollow core column of the utility model;

[0025] Figure 6 for Figure 4 The enlarged structural diagram at A in the middle;

[0026] Figure 7 for Figure 4 Enlarged structural diagram at B in the middle.

[0027] In the figure: 1. circular movable seat; 2. cavity; 3. water hole; 4. high-pressure nozzle; 5. water inlet pipe; 6. traction ring; 7. support unit; 8. anti-fall unit; 9. arc plate; 10. support rod; 11. movable roller; 12. fixed plate; 13. arc guide rod; 14. first spring; 15. clearance port; 16. sliding groove; 17. sliding block; 18. hollow rod; 19. movable rod; 20. auxiliary wheel; 21. second spring; 22. baffle; 23. fastening bolt. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] See also Figure 1-Figure 7 A rust removal device for a metal bent pipe comprises a circular movable seat 1, a cavity 2 is formed in the circular movable seat 1, water holes 3 connected to the inside of the cavity 2 are formed at equal intervals on the side of the circular movable seat 1, a plurality of high-pressure nozzles 4 adapted to the water holes 3 are formed on the side of the circular movable seat 1, a water inlet pipe 5 connected to the inside of the cavity 2 is fixedly installed on one side of the circular movable seat 1, a traction ring 6 is fixedly installed on the side of the circular movable seat 1 away from the water inlet pipe 5, an adjustable support unit 7 is provided on the side of the circular movable seat 1, the support unit 7 is used to support the circular movable seat 1, and an anti-falling unit 8 is provided on the side of the support unit 7, the anti-falling unit 8 is used to prevent the circular movable seat 1 from falling over.

[0030] When it is necessary to remove rust from the inside of the metal elbow, a traction rope is used to pass through the two ends of the metal elbow, one end of the traction rope is tied to the traction ring 6, and the circular movable seat 1 is placed on one end of the metal elbow by adjusting the support unit 7 and the anti-fall unit 8, and the water inlet pipe 5 is connected to one side of the circular movable seat 1, and the water inlet pipe 5 is opened to send high-pressure water into the cavity 2, and the high-pressure water flows to several high-pressure nozzles 4 through the water holes 3, and the traction rope is pulled at the other end of the metal elbow, and the high-pressure water flow sprayed by the several high-pressure nozzles 4 is used to remove rust from the inner wall of the metal elbow, so as to facilitate the rust removal of the inner wall of the metal elbow.

[0031] See also Figure 1 , Figure 3 , Figure 4 and Figure 6The support unit 7 includes an arc-shaped plate 9 fixedly connected to both sides of the circular movable seat 1, a support rod 10 is slidably connected to the side of the arc-shaped plate 9, a movable roller 11 is rotatably connected between the side of one end of the two support rods 10 away from the arc-shaped plate 9, a fixed plate 12 is fixedly connected between the side of one end of the two support rods 10 close to the arc-shaped plate 9, an arc-shaped guide rod 13 is passed through the two fixed plates 12, the arc-shaped guide rod 13 passes through the circular movable seat 1 and is concentric with the arc-shaped plate 9, a first spring 14 is fixedly connected between the side surfaces of the two fixed plates 12, and a make way opening 15 for making way for the first spring 14 is opened through the circular movable seat 1.

[0032] When it is necessary to use the support unit 7 to install the circular movable seat 1 in the metal bend, the two adjacent support rods 10 are pulled in opposite directions, and the circular movable seat 1 is inserted into one end of the metal bend. After the support rods 10 are released, the tension of the first spring 14 pulls the two fixed plates 12 to move toward each other, so that the two adjacent movable rollers 11 move toward each other, and all the support rods 10 are X-shaped and clamped in the metal bend. The movable rollers 11 are elastic and can allow the circular movable seat 1 to move inside the metal bend. By pulling the support rods 10 whose position can be adjusted, it can be used to remove rust on the inner wall of metal bends with different diameters within a certain range, thereby improving the application range of the overall device.

[0033] See also Figure 6 A sliding block 17 is fixedly installed at one end of the support rod 10 close to the arc plate 9, and a sliding groove 16 adapted to the sliding block 17 is opened on the side of the arc plate 9. When the support rod 10 is adjusted, the sliding block 17 moves in the sliding groove 16.

[0034] See also Figure 3 , Figure 4 and Figure 5 The anti-fall unit 8 includes a hollow rod 18 fixedly mounted on the opposite sides of the two arc-shaped plates 9, a moving rod 19 with one end extending to the outside is slidably connected inside the hollow rod 18, an end of the moving rod 19 away from the hollow rod 18 is rotatably connected to an auxiliary wheel 20, and a second spring 21 is fixedly connected between the inner wall of the hollow rod 18 and one end of the moving rod 19.

[0035] The two hollow rods 18 are in a vertical state with one side of the arc plate 9. When the moving roller 11 is located in a vertical position in the metal bend, the two hollow rods 18 are in a horizontal position in the metal bend. The two auxiliary wheels 20 have a certain elasticity. The moving rollers 11 and the auxiliary wheels 20 are crossed in a cross shape to limit the circular moving seat 1 inside the metal bend to prevent the circular moving seat 1 from tipping over. The moving rod 19 can move in the hollow rod 18 and the auxiliary wheels 20 are pushed to fit tightly against the inner wall of the metal bend through the tension of the second spring 21. It can be applicable to different inner diameters of metal bends within a certain range, thereby improving the applicability of the overall device.

[0036] See also Figure 7 Baffles 22 are provided at both ends of the arc-shaped guide rod 13, and fastening bolts 23 are passed through the baffles 22. One end of the fastening bolt 23 is threadedly connected to the end of the arc-shaped guide rod 13. Through the cooperation of the baffle 22 and the fastening bolt 23, the first spring 14 can be replaced. For metal bent pipes with different diameters, different types of first springs 14 can be replaced to provide supporting strength for the moving roller 11 in the metal bent pipe.

[0037] Among them, the cross-section of the sliding block 17 is T-shaped, the sliding groove 16 is adapted to the sliding block 17, the support rod 10 is fixedly installed with the sliding block 17 by fasteners, and the support rod 10 can be replaced according to the size of the internal aperture of the pipeline to improve the applicability of the overall device.

[0038] The main operation steps in this embodiment are as follows: use a traction rope to pass through the two ends of the metal elbow, one end of the traction rope is tied to the traction ring 6, pull the two adjacent support rods 10 in opposite directions, push the moving rod 19 in the opposite direction, the second spring 21 is compressed, and the circular moving seat 1 is plugged into one end of the metal elbow. After loosening the support rod 10, the tension of the first spring 14 pulls the two fixed plates 12 to move toward each other, and all the support rods 10 are clamped in the metal elbow in an X shape. The tension of the second spring 21 pushes the auxiliary wheel 20 to press against the inner wall of the metal elbow. The moving rod 19 and the support rod 10 are in a cross shape, and the circular moving seat 1 is stably clamped in the metal elbow. The high-pressure water flow is delivered to the cavity 2 through the installed water inlet pipe 5. The high-pressure water flow is sprayed through the high-pressure nozzle 4, and the circular moving seat 1 is pulled by the traction rope to move in the metal elbow to remove rust from the inner wall of the metal elbow.

[0039] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A rust removal device for a metal bent pipe, comprising a circular movable seat (1), characterized in that: The circular movable seat (1) has a cavity (2) formed therein, and water holes (3) communicating with the interior of the cavity (2) are formed at equal intervals on the side of the circular movable seat (1). The side of the circular movable seat (1) has a plurality of high-pressure nozzles (4) adapted to the water holes (3). A water inlet pipe (5) communicating with the interior of the cavity (2) is fixedly mounted on one side of the circular movable seat (1), and a traction ring (6) is fixedly mounted on the side of the circular movable seat (1) away from the water inlet pipe (5). An adjustable support unit (7) is provided on the side of the circular movable seat (1), and the support unit (7) is used to support the circular movable seat (1). An anti-falling unit (8) is provided on the side of the support unit (7), and the anti-falling unit (8) is used to prevent the circular movable seat (1) from falling over.

2. A rust removal device for a metal elbow pipe according to claim 1, characterized in that: The support unit (7) comprises an arc-shaped plate (9) fixedly connected to two surfaces of the circular movable seat (1); a support rod (10) is slidably connected to the side surface of the arc-shaped plate (9); a movable roller (11) is rotatably connected between the side surfaces of the two support rods (10) at one end away from the arc-shaped plate (9); a fixed plate (12) is fixedly connected between the side surfaces of the two support rods (10) at one end close to the arc-shaped plate (9); an arc-shaped guide rod (13) is passed through the two fixed plates (12); the arc-shaped guide rod (13) passes through the circular movable seat (1) and is concentric with the arc-shaped plate (9); a first spring (14) is fixedly connected between the side surfaces of the two fixed plates (12); and a clearance opening (15) for making way for the first spring (14) is passed through and opened on the circular movable seat (1).

3. A rust removal device for a metal elbow pipe according to claim 2, characterized in that: A sliding block (17) is fixedly mounted on one end of the support rod (10) close to the arc-shaped plate (9), and a sliding groove (16) adapted to the sliding block (17) is provided on the side of the arc-shaped plate (9).

4. A rust removal device for a metal elbow pipe according to claim 2, characterized in that: The anti-fall unit (8) comprises a hollow rod (18) fixedly mounted on opposite sides of two arc-shaped plates (9); a moving rod (19) having one end extending to the outside is slidably connected inside the hollow rod (18); an auxiliary wheel (20) is rotatably connected to one end of the moving rod (19) away from the hollow rod (18); and a second spring (21) is fixedly connected between the inner side wall of the hollow rod (18) and one end of the moving rod (19).

5. A rust removal device for a metal elbow pipe according to claim 2, characterized in that: Baffles (22) are provided at both ends of the arc-shaped guide rod (13).

6. A rust removal device for a metal elbow pipe according to claim 5, characterized in that: A fastening bolt (23) is passed through the baffle (22), and one end of the fastening bolt (23) is threadedly connected to the end of the arc-shaped guide rod (13).

7. A rust removal device for a metal elbow pipe according to claim 3, characterized in that: The sliding block (17) has a T-shaped cross section, the sliding groove (16) is adapted to the sliding block (17), and the support rod (10) is fixedly mounted to the sliding block (17) via a fastener.

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