Pipeline welding opening splicing device

Abstract

The utility model discloses a pipeline welding splicing device which comprises a first supporting piece and a second supporting piece used for being supported on the outer circumferential wall of a first pipeline or used for being supported on the inner circumferential wall of the first pipeline, when the second supporting piece is supported on the outer circumferential wall of the first pipeline, one end of the second supporting piece is connected with the first supporting piece, and the other end of the second supporting piece is connected with the second supporting piece. The other end of the second support is used for supporting the bottom of the second pipeline; when the second supporting piece is supported on the inner circumferential wall of the first pipeline, one end of the second supporting piece is connected with the first supporting piece, and the other end of the second supporting piece is used for supporting a flange. The first supporting piece supports the pipe opening of the first pipeline, the second supporting piece supports the second pipeline or the flange, the first pipeline and the second pipeline or the first pipeline and the flange can be welded together conveniently, manual supporting is not needed, workers are prevented from being scalded in the opening splicing process, and the opening splicing quality is also prevented from being reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline welding, in particular to a pipeline welding butt joint device. Background Art

[0002] There are generally two types of interface methods for the butt joint of pipeline nozzles. One is direct butt joint (butt welding), and the other is welding a flange to the nozzle and connecting with a flange. For direct butt joint, the nozzles are placed parallel to each other, and a gap of less than 3 mm should be left at the butt joint for easy welding and to achieve a certain melting depth; when welding a flange to the nozzle, the flange should be parallel to the nozzle, and there should be a 3-mm gap between the nozzle and the flange to ensure the welding melting depth quality. However, for both of the above two interface methods, the pipeline needs to be lifted manually for butt joint. When butt joint is carried out manually, since the personnel operate close to the weld joint, there is a risk of scalding the personnel during tack welding, and even the displacement of the butt joint nozzle due to scalding, resulting in a decline in the butt joint quality. Content of the Utility Model

[0003] Aiming at the technical problem that the pipeline needs to be lifted manually for butt joint during welding, the utility model provides a pipeline welding butt joint device, which welds the first pipeline and the second pipeline, or the first pipeline and the flange together through the first support member and the second support member, without the need for manual support, thus avoiding scalding the personnel during butt joint.

[0004] The technical solution adopted by the utility model is as follows: a pipeline welding butt joint device includes a second support member and a first support member for supporting on the outer peripheral wall of the first pipeline or for supporting on the inner peripheral wall of the first pipeline. When the first support member supports on the outer peripheral wall of the first pipeline, one end of the second support member is connected to the first support member, and the other end of the second support member is used for supporting the bottom of the nozzle of the first pipeline and the bottom of the nozzle of the second pipeline; when the first support member supports on the inner peripheral wall of the first pipeline, one end of the second support member is connected to the first support member, and the other end of the second support member is used for supporting the flange.

[0005] Optionally, the first support member includes a sleeve and a first support rod connected to the sleeve, the second support member includes a second support rod and a support plate perpendicularly connected to the second support rod, and the second support rod is connected to the first support rod.

[0006] Optionally, the sleeve includes a plurality of unit blocks, and the plurality of unit blocks are sequentially hinged end to end to form a hollow cylinder. The unit block at the tail and the unit block at the tail are detachably connected, and one of the unit blocks is provided with a connecting block, and the first support rod is angularly connected to the connecting block.

[0007] Optionally, the unit block has magnetism.

[0008] Optionally, the connecting block and the first support rod are hinged, and the hinge joint between the connecting block and the first support rod is fixed by a knob.

[0009] Optionally, the first support rod and the second support rod are hinged, and the hinge joint between the first support rod and the second support rod is fixed by a knob.

[0010] Optionally, the first support member includes a first screw rod and a second screw rod symmetrically arranged with the first screw rod. The second support member includes a first support plate and a second support plate symmetrically arranged with the first support plate. One end of the first screw rod is connected to the first support plate, and the other end of the second screw rod is connected to an intermediate block. One end of the second screw rod is connected to the second support plate, and the other end of the second screw rod is connected to the intermediate block. One end of the second support plate and the first support plate respectively abuts against the inner peripheral wall of the first pipe, and the other end of the first support plate is used to pass through the connection hole on the flange.

[0011] Optionally, one end of the intermediate block is provided with a first screw hole for cooperating with the first screw rod, and the other end of the intermediate block is provided with a second screw hole for cooperating with the second screw rod. The thread directions of the first screw rod and the second screw rod are opposite.

[0012] The beneficial effects of the present utility model are as follows: The first support member supports the first pipe, and the second support member supports the second pipe or the flange, which is convenient for welding the first pipe and the second pipe, or the first pipe and the flange together. It does not require manual support, avoiding scalding personnel during the jointing process and also preventing the decline of the jointing quality. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the pipe welding joint device proposed in Embodiment 1 of the present utility model;

[0014] Figure 2 It is a schematic diagram of the sleeve of the pipe welding joint device proposed in Embodiment 1 of the present utility model;

[0015] Figure 3 It is a schematic structural diagram of the pipe welding joint device proposed in Embodiment 2 of the present utility model.

[0016] The marks in each drawing are: 1, sleeve; 101, unit block; 102, connecting block; 103, convex; 2, first support rod; 3, second support rod; 4, support plate; 5, knob; 6, first screw rod; 7, second screw rod; 8, first support plate; 9, second support plate; 10, intermediate block; 11, first pipe; 12, second pipe; 13, flange. Detailed Embodiments

[0017] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than limiting the utility model. In addition, it should be noted that for the convenience of description, only the parts related to the utility model are shown in the drawings. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions without contradiction or conflict, which are all within the scope of protection required by the present utility model.

[0018] Embodiment 1

[0019] As Figure 1 and 2 shown, this embodiment discloses a pipe welding joint device, which includes a second support member and a first support member for supporting on the outer peripheral wall of the first pipe 11. One end of the second support member is connected to the first support member, and the other end of the second support member is used to support the bottom of the nozzle of the first pipe 11 and the bottom of the nozzle of the second pipe 12; the first support member supports the first pipe 11, and the second support member supports the second pipe 12, which is convenient for splicing the nozzles of the first pipe 11 and the second pipe 12, eliminating the need for manual support, avoiding scalding personnel during jointing, and also avoiding the decline in joint quality.

[0020] In this embodiment, as Figure 1 shown, the first support member includes a sleeve 1 and a first support rod 2 connected to the sleeve 1. The second support member includes a second support rod 3 and a support plate 4 perpendicularly connected to the second support rod 3. The second support rod 3 is connected to the first support rod 2. The sleeve 1 is sleeved on the outer peripheral wall of the first pipe 11, and the support plate 4 supports the bottom of the nozzles of the first pipe 11 and the second pipe 12, ensuring that the first pipe 11 and the second pipe 12 are coaxially arranged. The second support rod 3 is vertically arranged, and the interfaces of the first pipe 11 and the second pipe 12 are arranged opposite to each other. The support plate 4 can be connected to the second support rod 3 by screws, facilitating the adjustment of the height of the support plate 4.

[0021] In this embodiment, as Figure 2 shown, the sleeve 1 includes a plurality of unit blocks 101. The plurality of unit blocks 101 are sequentially hinged end to end to form a hollow cylinder. The unit block 101 at the tail and the unit block 101 at the tail are detachably connected. One of the unit blocks 101 is provided with a connecting block 102, and the first support rod 2 is angularly connected to the connecting block 102. The unit blocks 101 at the head and tail can be detachably connected by providing a clamping projection 103 and a snap fastener on the outside. Here, one of the connecting blocks 102 refers to any one of the connecting blocks 102.

[0022] In this embodiment, the unit block 101 has magnetism. The first pipe 11 and the second pipe 12 are steel pipes respectively, and the sleeve 1 with magnetic attraction increases the firmness of the support of the sleeve 1 for the first pipe 11.

[0023] In this embodiment, as Figure 1 shown, the connecting block 102 is hinged to the first support rod 2, and the hinged part of the connecting block 102 and the first support rod 2 is fixed by a knob 5. The first support rod 2 is hinged to the second support rod 3, and the hinged part of the first support rod 2 and the second support rod 3 is fixed by a knob 5. It is convenient to store the first support rod 2 and the second support rod 3 after welding is completed. Fixing by the knob 5 belongs to a common technical means.

[0024] Embodiment 2

[0025] As Figure 3 shown, the pipe welding joint device of this embodiment includes a second support member and a first support member for supporting on the inner peripheral wall of the first pipe 11. One end of the second support member is connected to the first support member, and the other end of the second support member is used to support the flange 13, which is convenient for connecting the first pipe 11 and the second pipe 12 without manual support, avoiding scalding personnel during jointing and also avoiding the decline of joint quality.

[0026] In this embodiment, as Figure 3 shown, the first support member includes a first screw rod 6 and a second screw rod 7 symmetrically arranged with the first screw rod 6. The second support member includes a first support plate 8 and a second support plate 9 symmetrically arranged with the first support plate 8. One end of the first screw rod 6 is connected to the first support plate 8, the other end of the second screw rod 7 is connected with an intermediate block 10, one end of the second screw rod 7 is connected to the second support plate 9, and the other end of the second screw rod 7 is connected to the intermediate block 10. One ends of the second support plate 9 and the first support plate 8 respectively abut against the inner peripheral wall of the first pipe 11, and the other end of the first support plate 8 is used to pass through the connection hole on the flange 13. The first screw rod 6 and the second screw rod 7 support the inner diameter of the first pipe 11, and the first support plate 8 supports the flange 13, relatively fixing the first pipe 11 and the flange 13 for convenient welding.

[0027] In this embodiment, as Figure 3 shown, one end of the intermediate block 10 is provided with a first screw hole matching the first screw rod 6, and the other end of the intermediate block 10 is provided with a second screw hole matching the second screw rod 7. The threads of the first screw rod 6 and the second screw rod 7 have opposite helix directions. When the intermediate block 10 is rotated, the first screw rod 6 and the second screw rod 7 move in opposite directions, or when the intermediate block 10 is rotated in the reverse direction, the first screw rod 6 and the second screw rod 7 move towards each other, so that the first screw rod 6 and the second screw rod 7 are applicable to first pipes 11 of different sizes.

[0028] The above are only the preferred embodiments of the present utility model, and thus do not limit the patent protection scope of the present utility model. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model, directly or indirectly applied in other related technical fields, shall similarly be included within the protection scope of the present utility model.

Claims

1. A pipe welding joint device, characterized in that: It includes a second support member and a first support member used to support the outer peripheral wall of the first pipe or the inner peripheral wall of the first pipe. When the first support member is supported on the outer peripheral wall of the first pipe, one end of the second support member is connected to the first support member, and the other end of the second support member is used to support the bottom of the first pipe orifice and the bottom of the second pipe orifice; when the first support member is supported on the inner peripheral wall of the first pipe, one end of the second support member is connected to the first support member, and the other end of the second support member is used to support the flange.

2. The pipeline welding joint device according to claim 1 is characterized in that: The first support member includes a sleeve and a first support rod connected to the sleeve, the second support member includes a second support rod and a support plate vertically connected to the second support rod, and the second support rod is connected to the first support rod.

3. The pipeline welding joint device according to claim 2 is characterized in that: The sleeve includes a plurality of unit blocks, which are hinged head to tail in sequence to form a hollow cylinder, and the unit blocks located at the tail are detachably connected to the unit blocks located at the tail, and one of the unit blocks is provided with a connecting block, and the first support rod is connected to the connecting block at an angle.

4. The pipeline welding joint device according to claim 3 is characterized in that: The unit block has magnetism.

5. The pipeline welding joint device according to claim 4 is characterized in that: The connecting block is hinged to the first supporting rod, and the hinge between the connecting block and the first supporting rod is fixed by a knob.

6. The pipeline welding joint device according to claim 2, characterized in that: The first support rod and the second support rod are hinged, and the hinge between the first support rod and the second support rod is fixed by a knob.

7. The pipeline welding joint device according to claim 1, characterized in that: The first support member includes a first screw and a second screw symmetrically arranged with the first screw, the second support member includes a first support plate and a second support plate symmetrically arranged with the first support plate, one end of the first screw is connected to the first support plate, and the other end of the second screw is connected to an intermediate block, one end of the second screw is connected to the second support plate, and the other end of the second screw is connected to the intermediate block, one end of the second support plate and the first support plate respectively abut against the inner circumferential wall of the first pipe, and the other end of the first support plate is used to pass through the connecting hole on the flange.

8. The pipeline welding joint device according to claim 7, characterized in that: A first screw hole matched with the first screw rod is provided at one end of the middle block, and a second screw hole matched with the second screw rod is provided at the other end of the middle block. The thread of the first screw rod and the thread of the second screw rod have opposite rotation directions.

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