Protective device for steel pipe welding

Abstract

The utility model discloses a protective device for steel pipe welding, which comprises a movable platform capable of being adjusted in a lifting manner, and a bearing device is arranged at the lifting end of the movable platform; the mounting frame is arranged on the bearing device, and a processing device is arranged on the mounting frame; the processing device comprises a rotating ring body and a smearing structure arranged on the rotating ring body, the smearing structure comprises a telescopic rod hinged to the rotating ring body, a soft coating block arranged at the telescopic end of the telescopic rod and a spray gun arranged on the telescopic rod, and a torsional spring is arranged at the hinged position of the telescopic rod. A spring is arranged in the telescopic rod, the output end of the spray gun faces the coating block, and a power device for driving the rotating ring body to rotate is arranged on the mounting frame. The steel pipe anti-rust protection device can efficiently and conveniently carry out anti-rust protection treatment on the welding position of the steel pipe, so that the steel pipe body has good protection performance after being welded, and follow-up use is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe welding processing, in particular to a protective device for steel pipe welding. Background Art

[0002] When a sewage treatment plant is modified or expanded, it will involve the connection of multiple pipelines, and the connection method is mainly welding. During the construction of multiple pipelines, steel pipes are usually required to be connected. Pipes can usually be connected by welding in a straight line or L shape. Although the welded steel pipe itself is not easy to produce new rust, the joints after welding will be prone to rust due to the lack of anti-rust treatment and inadequate anti-rust treatment. Common anti-rust methods include applying anti-rust paint and using anti-rust agents. However, most anti-rust operations are still manually applied, which is time-consuming and labor-intensive, has a great impact on the progress of construction, and often uneven application, affecting the protective performance of the steel pipe joints. Utility Model Content

[0003] The purpose of the utility model is to provide a protective device for steel pipe welding to solve the above-mentioned shortcomings, so as to achieve uniform and efficient rust prevention treatment on the welding part of the steel pipe.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a protective device for steel pipe welding, comprising:

[0005] A movable platform that can be raised and lowered, wherein a load-bearing device is provided at the lifting end of the movable platform, and the load-bearing device is used to bear the welded steel pipe;

[0006] A mounting frame, which is arranged on the carrying device, and a processing device is arranged on the mounting frame, and the processing device is used for rust prevention treatment of the welding part of the steel pipe;

[0007] The processing device includes a rotating ring body and a coating structure arranged on the rotating ring body, the coating structure includes a telescopic rod hingedly arranged on the rotating ring body, a soft paint block arranged at the telescopic end of the telescopic rod and a spray gun arranged on the telescopic rod, a torsion spring is provided at the hinge of the telescopic rod, a spring is provided in the telescopic rod, the output end of the spray gun faces the paint block, a power device for driving the rotating ring body to rotate is provided on the mounting frame, the spray gun is used to spray the rust inhibitor onto the welding part of the steel pipe, and the rotation of the rotating ring body drives the coating structure to rotate along the welding surface of the steel pipe and evenly spread the rust inhibitor on the welding part of the steel pipe.

[0008] Furthermore, the mobile platform includes a lifting device and a universal wheel rotatably arranged at the bottom of the lifting device, the bearing device includes a bearing platform and two bearing wheels rotatably installed in the bearing platform, and the bearing platform is arranged at the lifting end of the lifting device.

[0009] Furthermore, the rotating ring body includes a gear ring rotatably arranged on the mounting frame and a fixed ring that coincides with and is connected to the center of the gear ring, the telescopic rod is hingedly arranged on the fixed ring, and the power device includes a motor arranged on the mounting frame and a gear arranged on the motor shaft, and the gear is meshed with the gear ring.

[0010] Furthermore, the processing device also includes a feeding device arranged on the side of the gear ring away from the fixed ring, and the feeding device is used to transfer the rust inhibitor from the source to the rotating spray gun.

[0011] Furthermore, the feeding device includes two rotatably connected and hollow conductive sleeves, the two conductive sleeves are interconnected and dynamically sealed, the first conductive sleeve is installed on the gear ring, and the first conductive sleeve is provided with a feeding pipe connected to the spray gun, and the second conductive sleeve is provided with a feed joint, and the feed joint is connected to the source of the rust inhibitor. The spray gun is a telescopic gun body, and its telescopic end is connected to the telescopic end of the telescopic rod through the rod body.

[0012] Furthermore, a positioning device is provided on the mobile platform, and the positioning device is used to position the steel pipe placed on the carrying device. The positioning device includes a sleeve provided on the mobile platform, a locking frame with one end slidably inserted in the sleeve and having a U-shaped appearance, and an adjusting device provided on the sleeve, and the adjusting device is used to drive the locking frame to move up and down.

[0013] Furthermore, the adjusting device includes a rotatable lead screw vertically arranged in the sleeve body and a bevel gear group arranged on the lead screw, the lead screw extends into the locking frame and cooperates therewith, the bevel gear group is composed of a first bevel gear and a second bevel gear meshing at ninety degrees, the first bevel gear is arranged on the lead screw, the second bevel gear is arranged on the side wall of the sleeve body, and a sprocket group is arranged at the end of the second bevel gear away from the lead screw, the sprocket group includes a plurality of sprockets and chains linked to the plurality of sprockets, the plurality of sprockets are connected to the second bevel gear by a connecting shaft, and one of the sprockets is rotatably connected to the mobile platform by a connecting shaft, and a handle is arranged on one of the sprockets.

[0014] The beneficial effects of the utility model are embodied in:

[0015] In the utility model, a worker places a straight or T-shaped steel pipe body that has been welded on a carrying device. At this time, the steel pipe body passes through a processing device. The worker then starts a power device, which rotates a rotating ring body in the processing device, and the rotating ring body drives a coating structure thereon to rotate and adjust, thereby rotating around the steel pipe body. During this process, the rotation of the spray gun sprays rust inhibitors on the welding parts of the steel pipe body, and the coating block rotates synchronously and evenly spreads the rust inhibitors on the welding parts of the steel pipe body, so that the steel pipe body has better protective performance after welding, and a uniform and efficient rust prevention treatment is achieved on the welding parts of the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional view of the utility model;

[0017] Figure 2 It is a partial view of the processing device in the utility model;

[0018] Figure 3 It is a front view of the utility model;

[0019] Figure 4 It is a rear view of the utility model;

[0020] Figure 5 It is a partial cross-sectional view of the sleeve body in the utility model;

[0021] Figure 6 It is a working schematic diagram of the utility model.

[0022] In the figure:

[0023] 1. Lifting device; 2. Universal wheel; 3. Carrying device; 31. Carrying platform; 32. Carrying wheel; 4. Mounting frame; 5. Processing device; 51. Gear ring; 52. Fixing ring; 53. Telescopic rod; 54. Paint block; 55. Spray gun; 56. Conducting sleeve; 57. Feeding pipe; 58. Feeding joint; 6. Motor; 7. Gear; 8. Positioning device; 81. Sleeve; 82. Locking frame; 83. Screw; 84. Bevel gear set; 85. Sprocket set; 86. Handle. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-6 The utility model discloses a protective device for steel pipe welding, including a movable platform which can be raised and lowered and adjusted and a steel pipe body 9. A carrying device 3 is installed at the lifting end of the movable platform. The carrying device 3 is used to carry the welded steel pipe body 9. A mounting frame 4 is installed on the carrying device 3. A processing device 5 is arranged on the mounting frame 4. The processing device 5 is used to perform rust prevention treatment on the welding part of the steel pipe body 9.

[0026] In one embodiment, the processing device 5 includes a rotating ring body and a coating structure arranged on the rotating ring body, the coating structure includes a telescopic rod 53 hingedly arranged on the rotating ring body, a soft paint block 54 installed on the telescopic end of the telescopic rod 53, and a spray gun 55 installed on the telescopic rod 53. A torsion spring is installed at the hinge of the telescopic rod 53, and a spring is installed in the telescopic rod 53. The spring is used to push the telescopic end of the telescopic rod 53 outward, and the output end of the spray gun 55 is facing the paint block 54. A power device for driving the rotating ring body to rotate is installed on the mounting frame 4. The spray gun 55 is used to spray the rust inhibitor onto the welding part of the steel pipe body 9. The rotation of the rotating ring body drives the coating structure to rotate along the welding surface of the steel pipe body 9 and evenly spread the rust inhibitor at the welding part of the steel pipe body 9.

[0027] In the specific implementation, the staff places the welded straight or T-shaped steel pipe body 9 on the supporting device 3. At this time, the steel pipe body 9 passes through the processing device 5. The staff then starts the power device, which rotates the rotating ring body in the processing device 5, and the rotating ring body drives the coating structure thereon to rotate and adjust, thereby rotating around the steel pipe body 9. During this process, the rotation of the spray gun 55 will spray the rust inhibitor on the welding part of the steel pipe body 9, and the coating block 54 will rotate synchronously and evenly spread the rust inhibitor on the welding part of the steel pipe body 9, so that the steel pipe body 9 has better protective performance after welding, and realizes uniform and efficient rust prevention treatment of the steel pipe welding part, and the above-mentioned rust inhibitor can also be replaced with anti-rust paint.

[0028] It should be noted that when the facing steel pipe body 9 is a T-shaped pipe, the welding point of the two steel pipes is arc-shaped. During this process, when the telescopic rod 53 rotates, it first drives the paint block 54 to rotate synchronously. When passing through the arc-shaped part on the side of the steel pipe body 9, the telescopic rod 53 is squeezed and shortened, so that the paint block 54 can completely pass through the arc-shaped welding point. The steel pipe body 9 in the T-shaped pipe state can be welded in conjunction with the spray gun 55. In addition, since a torsion spring is provided at the hinge of the telescopic rod 53, when the diameters of the two welded steel pipes in the steel pipe body 9 are different, the torsion spring will apply force to the rotatable telescopic rod 53, so that the paint block 54 can still be close to the welding point of the steel pipe body 9.

[0029] In one embodiment, the mobile platform includes a lifting device 1 and a universal wheel 2 rotatably installed at the bottom of the lifting device 1, the carrying device 3 includes a carrying platform 31 and two carrying wheels 32 rotatably installed in the carrying platform 31, and the carrying platform 31 is arranged at the lifting end of the lifting device 1.

[0030] In this design, the load-bearing wheel 32 is pre-equipped with another external load-bearing frame, or is pre-lifted by a sling, and then the device can pass through the steel pipe body 9, so that the steel pipe body 9 is directly placed between the two load-bearing wheels 32. This placement method can place steel pipe bodies 9 of different diameters, and the setting of the universal wheel 2 can make the lifting device 1 flexibly displaced. The lifting device 1 can be a hydraulic lifting mechanism powered by hydraulics, which can be raised and lowered to adapt to steel pipe bodies 9 of different placement heights.

[0031] In one embodiment, the rotating ring body includes a gear ring 51 rotatably mounted on a mounting frame 4 and a fixed ring 52 that coincides with and is connected to the center of the gear ring 51, a telescopic rod 53 is hingedly disposed on the fixed ring 52, and a power device includes a motor 6 mounted on the mounting frame 4 and a gear 7 disposed on the rotating shaft of the motor 6, and the gear 7 is meshed with the gear ring 51.

[0032] With this design, when the motor 6 is started, the gear 7 rotates synchronously, thereby driving the ring gear 51 to rotate. At this time, the telescopic rod 53 rotates around the welding part of the steel pipe body 9 with the center of the ring gear 51 as the center, so that the spray gun 55 and the paint block 54 rotate synchronously to spray and apply the welding part of the steel pipe body 9.

[0033] In one embodiment, the processing device 5 also includes a feeding device arranged on the side of the ring gear 51 away from the fixed ring 52, and the feeding device is used to transfer the rust inhibitor from the source to the rotating spray gun 55. In actual circumstances, a pump body device will be provided at the source, and the pump body device is used as a power source to transport the rust inhibitor.

[0034] In one embodiment, the feeding device includes two rotatably connected and internally hollow conductive sleeves 56, the two conductive sleeves 56 are interconnected and dynamically sealed, the first conductive sleeve 56 is installed on the gear ring 51, and the first conductive sleeve 56 is provided with a feeding pipe 57 connected to the spray gun 55, the second conductive sleeve 56 is provided with a feed joint 58, and the second conductive sleeve 56 is connected to the mounting frame 4, the feed joint 58 is connected to the source of the rust inhibitor, the feed joint 58 is connected to the source of the rust inhibitor, and the spray gun 55 is a telescopic gun body, and its telescopic end is connected to the telescopic end of the telescopic rod 53 through the rod body.

[0035] In a specific implementation, when the gear ring 51 is rotated and adjusted, the first conductive sleeve 56 will also rotate synchronously, while the second conductive sleeve 56 will not rotate. With this design, the feed joint 58 can be connected to the source of the rust inhibitor, so that the rust inhibitor passes through the two conductive sleeves 56 and is delivered to the spray gun 55. The rotation of the spray gun 55 will not affect the normal delivery of the rust inhibitor. When the telescopic end of the telescopic rod 53 is telescopically adjusted, the telescopic end of the spray gun 55 can also move synchronously, so that the output end of the spray gun 55 can always be aligned with the welding point of the steel pipe body 9.

[0036] In one embodiment, a positioning device 8 is provided on the mobile platform, and the positioning device 8 is used to position the steel pipe placed on the supporting device 3. The positioning device 8 includes a sleeve 81 provided on the mobile platform, a locking frame 82 with one end slidably inserted in the sleeve 81 and having a U-shaped appearance, and an adjusting device provided on the sleeve 81, and the adjusting device is used to drive the locking frame 82 to move up and down.

[0037] With this design, when the steel pipe body 9 is placed on the supporting device 3, the locking frame 82 can be controlled to descend so that its inner top wall is close to the top of the steel pipe body 9, and the supporting device 3 is cooperated to lock the steel pipe body, thereby making the steel pipe body 9 more stable during rust prevention treatment.

[0038] In one embodiment, the adjusting device includes a lead screw 83 rotatably installed vertically in the sleeve 81 and a bevel gear set 84 arranged on the lead screw 83. The lead screw 83 extends into the locking frame 82 and cooperates therewith. The bevel gear set 84 is composed of a first bevel gear and a second bevel gear meshing at ninety degrees. The first bevel gear is installed on the lead screw 83, and the second bevel gear is installed on the side wall of the sleeve 81. A sprocket set 85 is provided at the end of the second bevel gear away from the lead screw 83. The sprocket set 85 includes a plurality of sprockets and chains linked to the plurality of sprockets. The plurality of sprockets are connected to the second bevel gear by a connecting shaft, and one of the sprockets is rotatably connected to the mobile platform by a connecting shaft, and a handle 86 is provided on one of the sprockets.

[0039] In a specific implementation, a staff member holds the handle 86 and rotates it to adjust the sprocket and the chain to drive the second bevel gear to rotate. At this time, the first bevel gear meshing with the second bevel gear rotates synchronously, and the locking frame 82 is raised and lowered in the sleeve 81.

[0040] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0042] In addition, "plurality" means two or more.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A protective device for steel pipe welding, characterized in that: include, A movable platform capable of being raised and lowered, wherein a carrying device (3) is provided at a lifting end of the movable platform, and the carrying device (3) is used to carry the welded steel pipe; A mounting frame (4) is arranged on the carrying device (3); a processing device (5) is arranged on the mounting frame (4); the processing device (5) is used for rust prevention treatment of the welding part of the steel pipe; The processing device (5) comprises a rotating ring body and a coating structure arranged on the rotating ring body, the coating structure comprises a telescopic rod (53) hingedly arranged on the rotating ring body, a soft coating block (54) arranged at the telescopic end of the telescopic rod (53), and a spray gun (55) arranged on the telescopic rod (53), a torsion spring is arranged at the hinge of the telescopic rod (53), a spring is arranged in the telescopic rod (53), the output end of the spray gun (55) faces the coating block (54), a power device for driving the rotating ring body to rotate is arranged on the mounting frame (4), the spray gun (55) is used to spray the rust preventive onto the welding part of the steel pipe, and the rotation of the rotating ring body drives the coating structure to rotate along the welding surface of the steel pipe and evenly spread the rust preventive on the welding part of the steel pipe.

2. A protective device for steel pipe welding according to claim 1, characterized in that: The mobile platform comprises a lifting device (1) and a universal wheel (2) rotatably arranged at the bottom of the lifting device (1); the bearing device (3) comprises a bearing platform (31) and two bearing wheels (32) rotatably installed in the bearing platform (31); the bearing platform (31) is arranged at the lifting end of the lifting device (1).

3. A protective device for steel pipe welding according to claim 1, characterized in that: The rotating ring body comprises a gear ring (51) rotatably arranged on the mounting frame (4) and a fixed ring (52) which coincides with and is connected to the center of the gear ring (51); the telescopic rod (53) is hingedly arranged on the fixed ring (52); the power device comprises a motor (6) arranged on the mounting frame (4) and a gear (7) arranged on the rotating shaft of the motor (6); the gear (7) is meshed with the gear ring (51).

4. A protective device for steel pipe welding according to claim 3, characterized in that: The processing device (5) further comprises a feeding device arranged on a side of the gear ring (51) away from the fixing ring (52), and the feeding device is used to transfer the rust preventive agent from a source to the rotating spray gun (55).

5. A protective device for steel pipe welding according to claim 4, characterized in that: The feeding device comprises two rotatably connected and internally hollow conductive sleeves (56), the two conductive sleeves (56) are interconnected and dynamically sealed, the first conductive sleeve (56) is mounted on the gear ring (51), and the first conductive sleeve (56) is provided with a feed pipe (57) connected to the spray gun (55), the second conductive sleeve (56) is provided with a feed connector (58), the feed connector (58) is connected to the source of the rust inhibitor, the spray gun (55) is a telescopic gun body, and its telescopic end is connected to the telescopic end of the telescopic rod (53) through the rod body.

6. The protective device for steel pipe welding according to claim 1, characterized in that: A positioning device (8) is provided on the mobile platform, and the positioning device (8) is used to position the steel pipe placed on the carrying device (3). The positioning device (8) comprises a sleeve (81) provided on the mobile platform, a locking frame (82) having a U-shaped shape and one end of which is slidably inserted into the sleeve (81), and an adjusting device is provided on the sleeve (81), and the adjusting device is used to drive the locking frame (82) to move up and down.

7. A protective device for steel pipe welding according to claim 6, characterized in that: The adjusting device comprises a lead screw (83) rotatably arranged vertically in the sleeve (81) and a bevel gear set (84) arranged on the lead screw (83), the lead screw (83) extends into the locking frame (82) and cooperates therewith, the bevel gear set (84) is composed of a first bevel gear and a second bevel gear meshing at 90 degrees, the first bevel gear is arranged on the lead screw (83), the second bevel gear is arranged on the side wall of the sleeve (81), a sprocket set (85) is arranged at one end of the second bevel gear away from the lead screw (83), the sprocket set (85) comprises a plurality of sprockets and chains linked to the plurality of sprockets, the plurality of sprockets are connected to the second bevel gear via a connecting shaft, and one of the sprockets is rotatably connected to the moving platform via a connecting shaft, and a handle (86) is arranged on one of the sprockets.

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