Pipeline connector rust removal device

Abstract

The utility model relates to the field of derusting equipment, in particular to a pipeline connector derusting device which comprises an inner supporting frame arranged in a pipeline and used for supporting the inner wall of the pipeline, the inner supporting frame is rotationally connected with a transmission shaft, the inner end of the transmission shaft is in power connection with a rotary driving device, and the outer end of the transmission shaft is connected with a sliding sleeve in a clamped mode. A telescopic column is fixed to the sliding sleeve, a rotating support is arranged at the movable end of the telescopic column, and an angle grinder is arranged on the rotating support. The pipeline groove derusting device can automatically polish and derust a pipeline groove, and the operation risk of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the field of rust removal equipment, in particular to a pipeline interface rust removal device. Background Art

[0002] Before butt welding, the groove of the pipe needs to be polished and rust-free to prevent the rust from affecting the welding quality. Currently, the groove is generally polished and rust-free by hand with a handheld angle grinder. This method is dangerous and laborious, and will affect work efficiency after working for a long time. Utility Model Content

[0003] Based on the above problems, the purpose of the utility model is to provide a pipeline interface rust removal device, and the utility model adopts the following technical solutions:

[0004] The utility model provides a pipeline interface rust removal device, comprising an inner support frame arranged in the pipeline for supporting the inner wall of the pipeline, a transmission shaft being rotatably connected to the inner support frame, the inner end of the transmission shaft being dynamically connected to a rotary drive device, a sliding sleeve being clamped at the outer end of the transmission shaft, a telescopic column being fixed on the sliding sleeve, a rotating support being arranged at the movable end of the telescopic column, and an angle grinder being arranged on the rotating support.

[0005] Preferably, the inner support frame includes a center tube, the transmission shaft is rotatably connected in the center tube, a plurality of supporting feet are arranged in a ring shape on the outer circumference of the center tube, the supporting feet are arranged side by side with the center tube, two first connecting rods and one second connecting rod are arranged between the supporting feet and the center tube, the two first connecting rods are arranged side by side and inclined toward the outer end of the center tube, one end of the first connecting rod is rotatably connected to the supporting foot, and the other end is rotatably connected to the center tube, the second connecting rod is inclined toward the inner end of the center tube, and one end of the second connecting rod is rotatably connected to the first connecting rod located on the outside, and the other end is rotatably connected to the center sleeve, and the center sleeve is sleeved in the center tube; a handwheel is provided at the outer end of the center sleeve, the handwheel is threadedly connected to the center tube, and the handwheel is press-fitted with the center sleeve.

[0006] Preferably, a guide groove is circumferentially arranged on the outer end wall of the transmission shaft, a first limiting bolt is threadedly connected to the sliding sleeve, and an inner end of the first limiting bolt is embedded in the guide groove.

[0007] Preferably, the telescopic column includes a fixed column and a movable column which are sleeved together, the connecting end of the fixed column is fixed to the sliding sleeve, the connecting end of the movable column is fixed to the rotating support, a second limiting bolt is threadedly connected to the fixed column, and the inner end of the second limiting bolt abuts against the movable column.

[0008] Preferably, the rotating support includes an upper support, the upper support is door-shaped, a lower hoop is fixed on the top of the upper support, an upper hoop is arranged on the lower hoop, the upper hoop and the lower hoop are tightly clamped to fix the angle grinder; a lower support is arranged in the upper support, the lower support fixer is on the movable column, an upper connecting hole is arranged on the upper support, a lower connecting hole is arranged on the lower support, and the upper connecting hole is aligned with the lower connecting hole and fixed by a bolt assembly.

[0009] Preferably, the inner side surface of the upper support is provided with a plurality of upper anti-slip grooves around the upper connecting hole; the inner side surface of the lower support is provided with a plurality of lower anti-slip grooves around the lower connecting hole.

[0010] Compared with the prior art, the beneficial technical effects of the utility model are:

[0011] The utility model can automatically grind and remove rust on the pipeline groove, thereby reducing the risk of workers' operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model will be further described below in conjunction with the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the main structure of the pipeline interface rust removal device of the utility model;

[0014] Figure 2 This is an exploded view of the pipeline interface rust removal device of the utility model;

[0015] Figure 3 It is a side view structural diagram of the rotary support of the utility model;

[0016] Figure 4 It is a side exploded view of the rotary support of the utility model.

[0017] Explanation of the accompanying drawings: 1. Pipe; 2. Inner support frame; 201. Center tube; 202. Support foot; 203. First connecting rod; 204. Second connecting rod; 205. Center sleeve; 206. Handwheel; 3. Transmission shaft; 301. Guide groove; 4. Rotation drive device; 5. Sleeve; 501. First limiting bolt; 6. Telescopic column; 601. Fixed column; 602. Movable column; 603. Second limiting bolt; 7. Rotating support; 701. Upper support; 702. Lower hoop; 703. Upper hoop; 704. Lower support; 705. Upper connecting hole; 706. Lower connecting hole; 707. Bolt assembly; 708. Upper anti-slip pattern; 709. Lower anti-slip pattern; 8. Angle grinder. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] like Figure 1 As shown, the present embodiment discloses a pipeline interface rust removal device, including an inner support frame 2 arranged in the pipeline 1 for supporting the inner wall of the pipeline 1, a transmission shaft 3 is rotatably connected to the inner support frame 2, the inner end of the transmission shaft 3 is dynamically connected to a rotary drive device 4, a sliding sleeve 5 is clamped at the outer end of the transmission shaft 3, a telescopic column 6 is fixed on the sliding sleeve 5, a rotating support 7 is arranged at the movable end of the telescopic column 6, and an angle grinder 8 is arranged on the rotating support 7.

[0020] like Figure 2 As shown, in this embodiment, the inner support frame 2 includes a central tube 201 , the transmission shaft 3 is rotatably connected in the central tube 201 , and the rotary drive device 4 can be a motor, the housing of the motor is fixed to the inner end of the central tube 201 . A plurality of supporting feet 202 are arranged in a ring shape on the outer circumference of the center tube 201. The supporting feet 202 and the center tube 201 are arranged side by side. Two first connecting rods 203 and a second connecting rod 204 are arranged between the supporting feet 202 and the center tube 201. The two first connecting rods 203 are arranged side by side and inclined toward the outer end of the center tube 201. One end of the first connecting rod 203 is rotatably connected to the supporting feet 202, and the other end is rotatably connected to the center tube 201. The second connecting rod 204 is inclined toward the inner end of the center tube 201, and one end of the second connecting rod 204 is rotatably connected to the first connecting rod 203 located on the outside, and the other end is rotatably connected to the center sleeve 205, and the center sleeve 205 is sleeved in the center tube 201; a hand wheel 206 is provided at the outer end of the center sleeve 205, the hand wheel 206 is threadedly connected to the center tube 201, and the hand wheel 206 is pressed and fitted with the center sleeve 205.

[0021] In this embodiment, a guide groove 301 is circumferentially arranged on the outer end wall of the transmission shaft 3 , a first limiting bolt 501 is threadedly connected to the sliding sleeve 5 , and the inner end of the first limiting bolt 501 is embedded in the guide groove 301 .

[0022] In this embodiment, the telescopic column 6 includes a fixed column 601 and a movable column 602 which are sleeved together. The connecting end of the fixed column 601 is fixed to the sliding sleeve 5, and the connecting end of the movable column 602 is fixed to the rotating support 7. A second limiting bolt 603 is threadedly connected to the fixed column 601, and the inner end of the second limiting bolt 603 rests on the movable column 602.

[0023] like Figure 3 and 4As shown, in this embodiment, the rotating support 7 includes an upper support 701, the upper support 701 is door-shaped, a lower hoop 702 is fixed on the top of the upper support 701, an upper hoop 703 is arranged on the lower hoop 702, the upper hoop 703 and the lower hoop 702 are fixed by screws, and the upper hoop 703 and the lower hoop 702 are clamped and fixed to the angle grinder 8; a lower support 704 is arranged in the upper support 701, the lower support 704 is fixed on the movable column 602, an upper connecting hole 705 is arranged on the upper support 701, and a lower connecting hole 706 is arranged on the lower support 704, and the upper connecting hole 705 and the lower connecting hole 706 are fixed by a bolt assembly 707 after being aligned.

[0024] In this embodiment, the inner side surface of the upper support 701 is provided with a plurality of upper anti-skid patterns 708 around the upper connection hole 705, and the inner side surface of the lower support 704 is provided with a plurality of lower anti-skid patterns 709 around the lower connection hole 706. The upper anti-skid patterns 708 cooperate with the lower anti-skid patterns 709 to facilitate fixing the rotation angle of the rotating support 7.

[0025] The use process of the utility model is as follows:

[0026] First, place the inner support frame 2 into the pipe 1 and turn the hand wheel 206. The hand wheel 206 moves axially along the center tube 201 through the threaded structure. During the rotation of the hand wheel 206, the center sleeve 205 is squeezed, so that the center sleeve 205 drives the first connecting rod 203 and the second connecting rod 204 to unfold. After the first connecting rod 203 and the second connecting rod 204 are unfolded, they will drive the supporting feet 202 to press against the inner wall of the pipe 1, thereby finally fixing the inner support frame 2.

[0027] After the inner support frame 2 is fixed, the sliding sleeve 5 is mounted on the transmission shaft 3, the first limiting bolt 501 is rotated so that its inner end is embedded in the guide groove 301, the telescopic column 6 is adjusted to an appropriate height, and then the upper support 701 is rotated and adjusted so that the grinding disc of the angle grinder 8 is parallel to the groove of the pipe 1, and the grinding disc of the angle grinder 8 is close to the groove. At this time, the first limiting bolt 501 and the bolt assembly 707 are locked to ensure that the angle grinder 8 is in the current state.

[0028] The rotary drive device 4 and the angle grinder 8 are started, and the angle grinder 8 drives the grinding disc to rotate. At the same time, the rotary drive device 4 drives the angle grinder 8 to rotate circumferentially through the transmission shaft 3, and finally completes the circumferential grinding of the pipeline groove.

[0029] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A pipeline interface rust removal device, characterized in that: The invention comprises an inner support frame (2) arranged in a pipeline (1) for supporting the inner wall of the pipeline (1), a transmission shaft (3) being rotatably connected to the inner support frame (2), the inner end of the transmission shaft (3) being dynamically connected to a rotary drive device (4), a sliding sleeve (5) being clamped at the outer end of the transmission shaft (3), a telescopic column (6) being fixed on the sliding sleeve (5), a rotating support (7) being arranged at the movable end of the telescopic column (6), and an angle grinder (8) being arranged on the rotating support (7).

2. The pipeline interface rust removal device according to claim 1, characterized in that: The inner support frame (2) comprises a central tube (201), the transmission shaft (3) is rotatably connected to the central tube (201), a plurality of support legs (202) are arranged in a ring shape on the outer periphery of the central tube (201), the support legs (202) and the central tube (201) are arranged side by side, two first connecting rods (203) and a second connecting rod (204) are arranged between the support legs (202) and the central tube (201), the two first connecting rods (203) are arranged side by side and face the central tube (201). The outer end of the center tube (201) is inclined, one end of the first connecting rod (203) is rotatably connected to the supporting foot (202), and the other end is rotatably connected to the center tube (201), the second connecting rod (204) is inclined toward the inner end of the center tube (201), and one end of the second connecting rod (204) is rotatably connected to the first connecting rod (203) located on the outside, and the other end is rotatably connected to the center sleeve (205), and the center sleeve (205) is sleeved in the center tube (201); A hand wheel (206) is provided at the outer end of the center sleeve (205), the hand wheel (206) is threadedly connected to the center tube (201), and the hand wheel (206) is pressed and matched with the center sleeve (205).

3. The pipeline interface rust removal device according to claim 1, characterized in that: A guide groove (301) is circumferentially arranged on the outer end wall of the transmission shaft (3); a first limiting bolt (501) is threadedly connected to the sliding sleeve (5); and the inner end of the first limiting bolt (501) is embedded in the guide groove (301).

4. The pipeline interface rust removal device according to claim 1, characterized in that: The telescopic column (6) comprises a fixed column (601) and a movable column (602) which are sleeved together, the connecting end of the fixed column (601) is fixed to the sliding sleeve (5), the connecting end of the movable column (602) is fixed to the rotating support (7), and a second limiting bolt (603) is threadedly connected to the fixed column (601), and the inner end of the second limiting bolt (603) abuts against the movable column (602).

5. The pipeline interface rust removal device according to claim 4, characterized in that: The rotating support (7) comprises an upper support (701), the upper support (701) is door-shaped, a lower hoop (702) is fixed on the top of the upper support (701), an upper hoop (703) is arranged on the lower hoop (702), and the upper hoop (703) and the lower hoop (702) are clamped and fixed to the angle grinder (8); A lower support (704) is arranged in the upper support (701); a fixing member of the lower support (704) is arranged on the movable column (602); an upper connecting hole (705) is arranged on the upper support (701); a lower connecting hole (706) is arranged on the lower support (704); the upper connecting hole (705) is aligned with the lower connecting hole (706) and then fixed by a bolt assembly (707).

6. The pipeline interface rust removal device according to claim 5, characterized in that: The inner side surface of the upper support (701) is provided with a plurality of upper anti-slip grooves (708) around the upper connecting hole (705); The inner side surface of the lower support (704) is provided with a plurality of lower anti-slip grooves (709) around the lower connecting hole (706).

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