Joint closing device for pipeline construction

Abstract

The utility model belongs to the technical field of pipeline construction, and particularly relates to a joint closing device for pipeline construction, which comprises a support frame and a welding head, the welding head is fixedly connected to the middle position of the top end of the inner side of the support frame, and the inner end and the outer end of the support frame are connected with joint closing mechanisms. When the joint closing device for pipeline construction is used, a pipeline to be welded and closed is placed on a rotating ball, then a hydraulic cylinder is started, an output shaft of the hydraulic cylinder extends out to drive a rectangular frame at the upper end to move upwards until the upper end welding position of the pipeline at the upper end moves to the lower end of a welding head, the welding head and a motor are started, and when the welding head is used for welding the pipeline, welding is completed. The output shaft of the motor rotates to drive the rotating rod at the upper end to rotate, drive the driving gear on the outer side to rotate and drive the driven gear to rotate to enable the rotating rod on the inner side to rotate, so that the rotating ball at the upper end is driven to rotate relatively, and the pipeline at the upper end is driven to move while being welded and seamed.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline construction, in particular to a jointing device for pipeline construction. Background Art

[0002] Metal round tubes are widely used in our daily production and life due to their convenience and connectivity. For some round tubes with smaller sizes, they can be directly cast using casting equipment, but for round tubes with larger sizes, large steel plates are generally used for folding into the shape of round tubes, and then welding equipment is used to weld the two ends of the steel plates. However, in the production process of traditional large round tubes, after the steel plates are folded into a circle using a folding device, the two ends of the steel plates are generally welded manually. Due to the large specifications of large round tubes, the workers are less efficient during the welding process, the workers' labor intensity is high, and the workers' random operation makes it difficult to weld the round tubes with high quality, reducing the efficiency and quality of the round tube welding seams.

[0003] The existing round tube jointing device cannot adjust the round tube placing mechanism according to the specifications of the round tube, so that the round tube placing mechanism cannot place round tubes of various specifications, which reduces the application scope of the existing round tube jointing device and cannot meet the production needs.

[0004] For example, a round tube seaming device disclosed in Chinese patent CN204381708U has two lifting hydraulic cylinders vertically arranged on both sides of a main bracket, a lifting plate horizontally arranged on the upper side of the lifting hydraulic cylinder, and pipe-bearing rollers are horizontally rotatably connected on both sides of the lifting plate. The horizontal position of the pipe-bearing rollers can be adjusted according to the specifications of the round tubes, so that round tubes of various specifications can be placed on the pipe-bearing rollers, ensuring that the round tube welding mechanism can perform welding efficiently and accurately.

[0005] However, during the lengthening process of the round tube, after the jointing device completes the welding of a section of the round tube, it is necessary to pull the round tube to move the unwelded position to the bottom of the welding machine head for welding and jointing, which is very inconvenient.

[0006] For this reason, we urgently need to provide a pipeline construction jointing device that is convenient to move during the welding of a long pipeline. Utility Model Content

[0007] The utility model aims to provide a jointing device for pipeline construction, so as to solve the problem that when the length of the round pipe is increased as mentioned in the background technology, after the jointing device completes the welding of a section of the round pipe, it is necessary to pull the round pipe to move the unwelded position to the bottom of the welding machine head and then carry out the welding work, which is very inconvenient.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a joint device for pipeline construction, comprising a support frame and a welding head, wherein the welding head is fixedly connected to the middle position of the inner top end of the support frame, and the inner and outer ends of the support frame are connected with a joint mechanism, wherein the joint mechanism comprises a joint unit and a purification unit, wherein the joint unit is arranged at the inner bottom end of the support frame, and the purification unit is arranged at the upper end of the support frame.

[0009] The joint unit includes a rectangular frame, an intermediate plate, a bearing, a rotating rod, a rotating ball, a transmission member, a motor and a hydraulic cylinder. The hydraulic cylinder is fixedly connected to the left and right ends of the bottom side of the support frame, the rectangular frame is fixedly connected to the upper end of the output shaft of the hydraulic cylinder, the intermediate plate is fixedly connected to the middle position of the inner side of the rectangular frame, the bearing is fixedly connected to the front and rear ends of the upper part of the rectangular frame, the rotating rod is fixedly connected to the inner side of the bearing, the rotating ball is fixedly connected to the upper end of the rotating rod, the transmission member is connected to the outer end of the rotating rod, and the motor is fixedly connected to the lower front end of the intermediate plate.

[0010] A further improvement is that a rotating hole is opened in the middle of the front and rear ends of the middle plate, the outer side of the lower end of the rotating rod is rotatably connected to the inner side of the rotating hole, and the upper end of the output shaft of the motor is fixedly connected to the lower end of the rotating rod at the front of the rectangular frame. Therefore, when the output shaft of the motor is started and rotated to drive the rotating rod at the front end of the rectangular frame, the rotating rods at the front and rear ends of the rectangular frame can be driven by the transmission member at the outer end of the rotating rod, so that the rotating rods at the front and rear ends of the rectangular frame can be relatively rotated together, thereby driving the rotating ball at the upper end to relatively rotate together, and transmitting the pipeline above it.

[0011] A further improvement is that the purification unit includes a fan, an air intake pipe, an air intake hopper, a connecting pipe, a processing box, a threaded rod, a cylinder, a sliding frame, a fixing plate, a HEPA filter and an activated carbon filter, the fan is fixedly connected to the upper right end of the support frame, the air intake pipe is fixedly connected to the left end of the fan, the air intake hopper is fixedly connected to the end of the air intake pipe away from the fan, the connecting pipe is fixedly connected to the right end of the fan, the processing box is fixedly connected to the right end of the connecting pipe, the threaded rod is fixedly connected to the left and right ends of the front side of the processing box, the cylinder is connected to the outer end of the threaded rod, the sliding frame is connected to the interior of the processing box, the fixing plate is fixedly connected to the front side of the sliding frame, the HEPA filter is fixedly connected to the inner side of the sliding frame above the interior of the processing box, and the HEPA filter is fixedly connected to the inner side of the sliding frame below the interior of the processing box.

[0012] A further improvement is that the end of the air intake hopper away from the air intake pipe is located at the lower end of the welding head, so that when the fan is started, the smoke generated during welding at the lower end of the welding head can be sucked in through the air intake hopper through the air intake pipe and then enter the processing box through the connecting pipe.

[0013] A further improvement is that through grooves are provided at the upper and lower ends of the front of the processing box, the threaded rod is fixed to the front side of the processing box at the left and right ends of the through groove, a circular hole is provided at the middle position of the left and right ends of the interior of the fixed plate, an internal thread is provided on the inner side of the cylinder, the outer side of the sliding frame is slidably connected to the inner side of the through groove, the outer side of the threaded rod is slidably connected to the inner side of the circular hole, the rear side of the cylinder abuts against the left and right ends of the front side of the fixed plate, and the inner side of the cylinder is threadedly connected to the outer side of the threaded rod. Therefore, after the sliding frame is slid into the through groove and the fixed plate is moved to the front side of the processing box, and the circular hole passes through the outer side of the threaded rod, the cylinder is threadedly connected to the outer side of the threaded rod until the rear side of the cylinder contacts the front side of the fixed plate, so that the fixed plate can be fixed to the front side of the processing box, thereby fixing the sliding frame to the through groove.

[0014] A further improvement is that the outer side of the sliding frame abuts against the inner side of the processing box, so that the smoke entering the processing box will be filtered from top to bottom through the activated carbon filter and the HEPA filter before being discharged, thereby purifying the smoke.

[0015] A further improvement is that an anti-skid pad is fixedly connected to the outside of the processing box, so that when the rotating ball rotates relatively to transport the pipeline above it, the rubber pad on the outside of the rotating ball contacts the outside of the pipeline, so that the pipeline is transported stably.

[0016] In summary, the present application discloses a jointing device for pipeline construction.

[0017] The technical solution starts the motor and rotates its output shaft to drive the rotating rod at the front end of the rectangular frame to rotate. The transmission member at the outer end of the rotating rod transmits the transmission, so that the rotating rods at the front and rear ends of the rectangular frame can rotate relatively together, thereby driving the rotating ball at the upper end to rotate relatively together, and transmitting the pipeline above it, so that the pipeline can be moved during the welding process, and there is no need to weld again after moving it after one welding is completed, thereby improving the welding efficiency of the pipeline.

[0018] Furthermore, by starting the fan, the smoke generated during welding at the lower end of the welding head can be sucked in through the air intake pipe and the air intake hopper, and then enter the processing box through the connecting pipe, and then filtered through the activated carbon filter and the HEPA filter before being discharged, thereby purifying the smoke. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a top view of the main structure of the utility model;

[0020] Figure 2 This is a bottom view of the main structure of the utility model;

[0021] Figure 3It is a schematic diagram of the internal structure of the rectangular frame of the utility model;

[0022] Figure 4 This is a schematic diagram of the processing box structure of the utility model.

[0023] In the figure: 1, support frame; 2, welding head; 301, rectangular frame; 302, middle plate; 303, bearing; 304, rotating rod; 305, rotating ball; 306, transmission part; 307, motor; 308, hydraulic cylinder; 401, fan; 402, air intake pipe; 403, air intake hopper; 404, connecting pipe; 405, treatment box; 406, threaded rod; 407, cylinder; 408, sliding frame; 409, fixed plate; 410, HEPA filter; 411, activated carbon filter. 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0026] Embodiment 1:

[0027] A jointing device for pipeline construction includes a support frame 1 and a welding head 2, wherein the welding head 2 is fixedly connected to the middle position of the inner top end of the support frame 1, and the inner and outer ends of the support frame 1 are connected with a jointing mechanism, and the jointing mechanism includes a jointing unit and a purification unit, wherein the jointing unit is arranged at the inner bottom end of the support frame 1, and the purification unit is arranged at the upper end of the support frame 1.

[0028] The seam unit includes a rectangular frame 301, an intermediate plate 302, a bearing 303, a rotating rod 304, a rotating ball 305, a transmission member 306, a motor 307 and a hydraulic cylinder 308. The hydraulic cylinder 308 is fixedly connected to the left and right ends of the bottom side of the support frame 1, the rectangular frame 301 is fixedly connected to the upper end of the output shaft of the hydraulic cylinder 308, the intermediate plate 302 is fixedly connected to the inner middle position of the rectangular frame 301, the bearing 303 is fixedly connected to the front and rear ends of the upper part of the rectangular frame 301, the rotating rod 304 is fixedly connected to the inner side of the bearing 303, the rotating ball 305 is fixedly connected to the upper end of the rotating rod 304, the transmission member 306 is connected to the outer end of the rotating rod 304, and the motor 307 is fixedly connected to the lower front end of the intermediate plate 302.

[0029] A rotating hole is provided in the middle of the front and rear ends of the middle plate 302, the lower end outer side of the rotating rod 304 is rotatably connected to the inner side of the rotating hole, and the upper end of the output shaft of the motor 307 is fixedly connected to the lower end of the rotating rod 304 at the front of the rectangular frame 301. When the motor 307 is started and its output shaft rotates to drive the rotating rod 304 at the front end of the rectangular frame 301 to rotate, the transmission member 306 at the outer end of the rotating rod 304 can be used to drive the rotating rods 304 at the front and rear ends of the rectangular frame 301 to rotate relatively together, thereby driving the rotating ball 305 at the upper end to rotate relatively together, and transmitting the pipeline above it.

[0030] Embodiment 2:

[0031] On the basis of the first embodiment: the purification unit includes a fan 401, an air intake pipe 402, an air intake hopper 403, a connecting pipe 404, a processing box 405, a threaded rod 406, a cylinder 407, a sliding frame 408, a fixing plate 409, a HEPA filter 410 and an activated carbon filter 411, the fan 401 is fixedly connected to the upper right end of the support frame 1, the air intake pipe 402 is fixedly connected to the left end of the fan 401, the air intake hopper 403 is fixedly connected to the end of the air intake pipe 402 away from the fan 401, the connecting pipe 404 is fixedly connected to the right end of the fan 401, and the end of the air intake hopper 403 away from the air intake pipe 402 is located at the lower end of the welding head 2. Thus, when the fan 401 is started, the smoke generated during welding at the lower end of the welding head 2 can be sucked in through the air intake pipe 402 and the air intake hopper 403, and then enters the processing box 405 through the connecting pipe 404.

[0032] The processing box 405 is fixedly connected to the right end of the connecting pipe 404, the threaded rod 406 is fixedly connected to the left and right ends of the front side of the processing box 405, the cylinder 407 is connected to the outer end of the threaded rod 406, the sliding frame 408 is connected to the inside of the processing box 405, the fixed plate 409 is fixedly connected to the front side of the sliding frame 408, the HEPA filter 410 is fixedly connected to the inner side of the sliding frame 408 at the upper part of the processing box 405, and the HEPA filter 410 is fixedly connected to the inner side of the sliding frame 408 at the lower part of the processing box 405.

[0033] A through groove is opened at the upper and lower ends of the front of the processing box 405, and the threaded rod 406 is fixed to the front side of the processing box 405 at the left and right ends of the through groove. A circular hole is opened in the middle position of the left and right ends of the interior of the fixed plate 409, and an internal thread is opened on the inner side of the cylinder 407. The outer side of the sliding frame 408 is slidably connected to the inner side of the through groove, the outer side of the threaded rod 406 is slidably connected to the inner side of the circular hole, the rear side of the cylinder 407 abuts against the left and right ends of the front side of the fixed plate 409, and the inner side of the cylinder 407 is threadedly connected to the outer side of the threaded rod 406. Thus, after the sliding frame 408 is slid into the through groove and the fixed plate 409 is moved to the front side of the processing box 405, and the round hole passes through the outside of the threaded rod 406, the cylinder 407 is threadedly connected to the outside of the threaded rod 406 until the back side of the cylinder 407 contacts the front side of the fixed plate 409, the fixed plate 409 can be fixed to the front side of the processing box 405, thereby fixing the sliding frame 408 to the through groove.

[0034] The outer side of the sliding frame 408 abuts against the inner side of the processing box 405. Therefore, the smoke entering the processing box 405 is filtered from top to bottom through the activated carbon filter 411 and the HEPA filter 410 before being discharged, thereby purifying the smoke.

[0035] Embodiment three:

[0036] On the basis of the first embodiment: an anti-skid pad is fixedly connected to the outside of the processing box 405. Therefore, when the rotating ball 305 rotates relatively to transport the pipeline above it, the rubber pad on the outside of the rotating ball 305 contacts the outside of the pipeline, so that the pipeline is transported stably.

[0037] Working principle: When in use, place the pipe to be welded on the rotating ball 305, then start the hydraulic cylinder 308, and its output shaft extends to drive the upper rectangular frame 301 to move upward, until the upper welding point of the upper pipe moves to the lower end of the welding head 2, then start the welding head 2 and the motor 307, while the welding head 2 welds the pipe, the output shaft of the motor 307 rotates to drive the upper rotating rod 304 to rotate, drive the outer driving gear to rotate, and drive the driven gear to rotate to make the inner rotating rod 304 rotate, thereby driving the upper rotating ball 305 to rotate relatively, driving the upper pipe to move and be welded, and at the same time start the fan 401 to inhale the smoke generated during welding at the lower end of the welding head 2 through the air inlet pipe 402 and the air inlet hopper 403, and then enter the treatment box 405 through the connecting pipe 404, and then pass through the activated carbon filter 411 and the HEPA filter 410 for filtration before being discharged.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A jointing device for pipeline construction, comprising a support frame (1) and a welding head (2), wherein the welding head (2) is fixedly connected to the middle position of the inner top end of the support frame (1), characterized in that: The inner and outer ends of the support frame (1) are connected with a joint mechanism, the joint mechanism comprising a joint unit and a purification unit, the joint unit is arranged at the inner bottom end of the support frame (1), and the purification unit is arranged at the upper end of the support frame (1); The joint unit comprises a rectangular frame (301), an intermediate plate (302), a bearing (303), a rotating rod (304), a rotating ball (305), a transmission member (306), a motor (307) and a hydraulic cylinder (308); the hydraulic cylinder (308) is fixedly connected to the left and right ends of the bottom side of the support frame (1); the rectangular frame (301) is fixedly connected to the upper end of the output shaft of the hydraulic cylinder (308); the intermediate plate (302) is fixedly connected to the middle position of the inner side of the rectangular frame (301); the bearing (303) is fixedly connected to the front and rear ends of the upper part of the rectangular frame (301); the rotating rod (304) is fixedly connected to the inner side of the bearing (303); the rotating ball (305) is fixedly connected to the upper end of the rotating rod (304); the transmission member (306) is connected to the outer end of the rotating rod (304); and the motor (307) is fixedly connected to the lower front end of the intermediate plate (302).

2. A joint closing device for pipeline construction according to claim 1, characterized in that: A rotating hole is provided in the middle of the front and rear ends of the middle plate (302), the outer side of the lower end of the rotating rod (304) is rotatably connected to the inner side of the rotating hole, and the upper end of the output shaft of the motor (307) is fixedly connected to the lower end of the rotating rod (304) at the front inside the rectangular frame (301).

3. A joint closing device for pipeline construction according to claim 1, characterized in that: The purification unit comprises a fan (401), an air intake pipe (402), an air intake hopper (403), a connecting pipe (404), a processing box (405), a threaded rod (406), a cylinder (407), a sliding frame (408), a fixing plate (409), a HEPA filter (410) and an activated carbon filter (411), wherein the fan (401) is fixedly connected to the upper right end of the support frame (1), the air intake pipe (402) is fixedly connected to the left end of the fan (401), the air intake hopper (403) is fixedly connected to the end of the air intake pipe (402) away from the fan (401), and the connecting pipe (404) is fixedly connected to the left end of the fan (401). The processing box (405) is fixedly connected to the right end of the connecting pipe (404), the threaded rod (406) is fixedly connected to the left and right ends of the front side of the processing box (405), the cylinder (407) is connected to the outer end of the threaded rod (406), the sliding frame (408) is connected to the inside of the processing box (405), the fixed plate (409) is fixedly connected to the front side of the sliding frame (408), the HEPA filter (410) is fixedly connected to the inner side of the sliding frame (408) at the upper part of the processing box (405), and the HEPA filter (410) is fixedly connected to the inner side of the sliding frame (408) at the lower part of the processing box (405).

4. A joint closing device for pipeline construction according to claim 3, characterized in that: One end of the air inlet hopper (403) away from the air inlet pipe (402) is located at the lower end of the welding head (2).

5. A joint closing device for pipeline construction according to claim 3, characterized in that: The upper and lower ends of the front of the processing box (405) are provided with through grooves, the threaded rod (406) is fixed to the front side of the processing box (405) at the left and right ends of the through groove, a circular hole is provided in the middle of the left and right ends of the interior of the fixed plate (409), the inner side of the cylinder (407) is provided with an internal thread, the outer side of the sliding frame (408) is slidably connected to the inner side of the through groove, the outer side of the threaded rod (406) is slidably connected to the inner side of the circular hole, the rear side of the cylinder (407) is in contact with the left and right ends of the front side of the fixed plate (409), and the inner side of the cylinder (407) is threadedly connected to the outer side of the threaded rod (406).

6. A joint closing device for pipeline construction according to claim 3, characterized in that: The outer side of the sliding frame (408) abuts against the inner side of the processing box (405).

7. A joint closing device for pipeline construction according to claim 3, characterized in that: An anti-slip pad is fixedly connected to the outer side of the processing box (405).

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