Support for pipe welding and using method thereof

Abstract

The invention discloses a support for pipe welding and a using method thereof, and relates to the technical field of pipe welding, the support is characterized in that the support comprises a supporting seat, a welding seat and a limiting piece, the welding seat is arranged on the side portion of the supporting seat, the welding seat is provided with a sliding block, the supporting seat is provided with a sliding groove corresponding to the sliding block, and the side portion of the supporting seat is provided with a base; the limiting piece is fixed to the side portion of the welding base, a fixing groove is formed in the side portion of the welding base, the welding base is provided with an adjusting ring, and the limiting piece is fixed to the side portion of the welding base through a connecting ring arranged on the side portion of the supporting base. The device is provided with the supporting base, the welding base and the limiting pieces, the supporting base and the welding base are detachably connected through the connecting mode of the sliding rail and the sliding block, a worker can select the welding bases of different shapes and sizes according to different pipelines, the limiting pieces comprise the first limiting piece and the second limiting piece, and the adjusting rings are arranged at the two ends of the welding base correspondingly; the two pipelines are ensured to be consistent in centering property, and the axes of the two pipelines are positioned on the same straight line.

Description

Technical Field

[0001] The invention belongs to the technical field of pipe welding, and in particular relates to a bracket for pipe welding and a use method thereof. Background Art

[0002] During the construction, overhaul, routine maintenance and technical transformation of hydropower stations, welding is a common way to connect pipelines. Pipelines are important channels for transporting fluids such as oil, water and gas in hydropower stations. The quality and stability of their connection are directly related to the safe and stable operation of the entire hydropower station. Welded pipelines require good weld structure, small internal stress, good centering and no axis deviation after welding.

[0003] During the welding process, the traditional method of fixing the pipeline is to fix it manually or with an ordinary C-type clamp. This fixing method can only fix the pipeline on one side, and cannot make the pipelines on both sides well aligned and parallel. After welding, the pipeline will appear skewed, misaligned, etc., which on the one hand affects the appearance of the pipeline part, and on the other hand increases the stress of the weld after the pipeline is installed, which is not conducive to the stable operation of the pipeline and increases the risk of pipeline weld defects and leakage. Unstable fixing methods may also cause defects such as cracks and slag inclusions in the weld, reducing the strength and reliability of the weld.

[0004] The above-mentioned pipeline welding work is relatively common in the construction processes such as hydropower station overhaul, daily maintenance, and technical transformation. In order to solve this problem, it is necessary to design a bracket for pipe welding and a method of using the bracket. Summary of the invention

[0005] The technical problem to be solved by the present invention is to solve the deficiencies in the prior art and to design a new bracket for pipe welding. The bracket for pipe welding has a perfect structure and is provided with a support seat, a welding seat and a limiter. The pipeline is placed on the welding seat to complete the welding. The limiter fixes the pipeline to be welded. The limiter includes at least a first limiter and a second limiter. Adjustment rings are provided at both ends of the welding seat, respectively corresponding to a section of the pipeline, to ensure that the two pipelines are aligned in centering and the axes are on the same straight line.

[0006] The solution adopted by the present invention to solve the technical problem is:

[0007] A bracket for pipe welding,

[0008] It is characterized in that

[0009] Including support seat, welding seat and limiter,

[0010] The welding seat is arranged on the side of the supporting seat,

[0011] The welding seat is provided with a sliding block, and the supporting seat is provided with a sliding groove corresponding to the sliding block.

[0012] The side of the support seat is provided with a base.

[0013] The limiting member is fixed to the side of the welding seat.

[0014] The side of the welding seat is provided with a fixing groove.

[0015] The welding seat is provided with an adjustment ring,

[0016] The limiting member is fixed to the side of the welding seat through a connecting ring arranged on the side of the supporting seat.

[0017] As a preferred embodiment of the present invention, the limiting member at least includes a first limiting member and a second limiting member.

[0018] Both ends of the welding seat are provided with adjustment rings.

[0019] The adjustment ring comprises a first adjustment ring and a second adjustment ring.

[0020] The first adjustment ring and the second adjustment ring are distributed on both sides of the fixing groove.

[0021] The first adjusting ring and the second adjusting ring are both threadedly connected with a first adjusting rod, and a first wear-resistant pad is arranged at the end of the first adjusting rod.

[0022] As a preferred embodiment of the present invention, the first limiting member and the second limiting member have the same structure.

[0023] The first limiting member includes a first supporting arm and a second supporting arm,

[0024] The first support arm and the second support arm are arranged in parallel,

[0025] A fixed arm is provided between the first supporting arm and the second supporting arm,

[0026] A first fixing ring is provided at the end of the first supporting arm.

[0027] A second fixing ring is provided at the end of the second supporting arm.

[0028] The first fixing ring is internally threaded with a threaded rod.

[0029] A fixing pin is connected inside the second fixing ring.

[0030] The end of the fixing pin is provided with a handle;

[0031] The fixed arm is provided with an adjustment hole,

[0032] The adjusting hole is threadedly connected with a second adjusting rod.

[0033] A second wear-resistant pad is provided at one end of the second adjusting rod close to the welding seat.

[0034] The other end of the second adjusting rod is connected to a first handle.

[0035] As a preferred embodiment of the present invention, the first limiting member is a semicircular structure.

[0036] Limiting rings are provided at both ends of the limiting member.

[0037] The side of the support seat is provided with a fixing column corresponding to the limiting ring.

[0038] The side of the fixing column is provided with a connection hole,

[0039] One end of the limiter is fixed by a fixing rod passing through its corresponding limiter ring and a fixing column corresponding to the limiter ring.

[0040] The other end of the limiter is fixed by a pin passing through its corresponding limiter ring and a fixing column corresponding to the limiter ring;

[0041] A limiting hole is arranged on the top of the limiting member.

[0042] The limiting hole is threadedly connected with a third adjusting rod.

[0043] The third adjusting rod is provided with a third wear-resistant pad at one end close to the welding seat.

[0044] The other end of the third adjusting rod is provided with a second handle.

[0045] As a preferred embodiment of the present invention, the support seat is provided with a first prefabricated hole.

[0046] The welding seat is provided with a second prefabricated hole corresponding to the position of the first prefabricated hole.

[0047] As a preferred embodiment of the present invention, a tray is provided on the side of the welding seat.

[0048] The tray is fixed to the side of the welding seat by buckles.

[0049] The position of the tray corresponds to the position of the second prefabricated hole.

[0050] As a preferred embodiment of the present invention, the fixing groove is a square groove.

[0051] As a preferred embodiment of the present invention, the fixing groove is a circular groove.

[0052] As a preferred embodiment of the present invention, the base is provided with a self-locking roller.

[0053] A method for using a bracket for pipe welding,

[0054] It is characterized in that

[0055] The following steps are involved:

[0056] S1: Select a suitable welding seat according to the shape of the pipeline to be welded and the shape of the fixing groove, disconnect the connection of one end of the limiter, rotate the limiter, and replace the welding seat through the slider of the welding seat and the slide groove of the support seat;

[0057] S2: Place the pipe to be welded in the fixing groove;

[0058] S3: Rotate the limiter and reconnect the disconnected end of the limiter at the same time;

[0059] S4: Adjust the first adjusting rod and the limiter to clamp the pipeline to be welded;

[0060] S5: Perform welding work.

[0061] Compared with the prior art, the present invention has the following beneficial effects:

[0062] 1. The device of the present invention is provided with a support seat, a welding seat and a limiter, wherein the support seat and the welding seat are detachably connected by a connection method of a slide rail and a slider, and the staff can select welding seats of different shapes and sizes according to pipes of different cross-sections, such as V-shaped, inner circular, outer circular, U-shaped, etc., to avoid the situation where only one cross-sectional shape of pipeline can be welded, thereby ensuring strong applicability.

[0063] 2. A limiter and an adjusting ring are arranged on the support seat of the device of the present invention, and clamps are arranged on the upper, left and right sides of the corresponding pipeline to ensure that the upper, lower, left and right sides of the pipeline are all fixed. The pipeline can be stably and securely fixed by appropriate clamps to ensure that during the welding process, the pipeline axis will not be offset due to thermal deformation.

[0064] 3. The limiter includes at least a first limiter and a second limiter. Adjustment rings are provided at both ends of the welding seat, corresponding to a section of the pipeline respectively, to ensure that the two pipelines are aligned in the same center and the axes are located on the same straight line.

[0065] 4. The first adjusting rod, the second adjusting rod and the third adjusting rod are all adjusted by threaded matching, which is convenient to adjust, firmly fixed, has a wide range of lengths, and can be applied to a wide range of pipeline sizes, meeting the requirements of pipelines of different sizes.

[0066] 5. The interval between the first stopper and the second stopper of the device of the present invention is relatively large, leaving enough space to meet the requirements of different connection methods between pipelines, such as direct welding of pipelines, welding of pipelines and flanges, or welding of pipelines and threaded joints, so that the device of the present invention has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] Figure 1 A top view of a bracket for pipe welding proposed by the present invention;

[0068] Figure 2 A side view of a certain embodiment of a bracket for pipe welding proposed by the present invention;

[0069] Figure 3 A side view of a certain embodiment of a bracket for pipe welding proposed by the present invention;

[0070] Figure 4 A side view of a certain embodiment of a bracket for pipe welding proposed by the present invention;

[0071] Figure 5 A side view of a certain embodiment of a bracket for pipe welding proposed by the present invention;

[0072] Figure 6 A side view of a certain embodiment of a bracket for pipe welding proposed by the present invention;

[0073] Figure 7 A side view of a certain embodiment of a bracket for pipe welding proposed by the present invention;

[0074] Figure 8 A top view of a bracket support seat for pipe welding proposed by the present invention;

[0075] Fig. 9 A partial side view of a bracket support seat for pipe welding proposed by the present invention;

[0076] Fig.10 The present invention is a partial side view of a support welding seat for pipe welding proposed by the present invention.

[0077] Description of reference numerals:

[0078] 1. Support seat,

[0079] 1-1, Slider,

[0080] 1-2, chute,

[0081] 1-3, connecting ring,

[0082] 2. Welding seat,

[0083] 2-1, fixed slot,

[0084] 2-2, Adjustment ring,

[0085] 2-3. The first adjustment lever,

[0086] 2-4, the first limiter,

[0087] 2-5. The second limiter,

[0088] 2-6, the first adjustment ring,

[0089] 2-7. Second adjustment ring

[0090] 3. Limiting parts,

[0091] 3-1. The first support arm,

[0092] 3-2, second support arm,

[0093] 3-3, Fixed arm,

[0094] 3-4, threaded rod,

[0095] 3-5, fixing pin,

[0096] 3-6, handle,

[0097] 3-7, the second adjustment lever,

[0098] 3-8, first handle,

[0099] 3-9, fixed column,

[0100] 3-10, fixed rod,

[0101] 3-11, latch,

[0102] 3-12, the third adjustment lever,

[0103] 3-13, second handle,

[0104] 3-14, the first prefabricated hole,

[0105] 3-15, the second prefabricated hole,

[0106] 4. Base,

[0107] 5. Self-locking roller,

[0108] 6. Pipelines to be welded. DETAILED DESCRIPTION

[0109] The specific implementation of the present invention is described below in conjunction with the accompanying drawings and embodiments:

[0110] It should be noted that the structures, colors, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0111] At the same time, in the description of the present invention, it should be understood that the terms "one end", "the other end", "middle", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0112] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0113] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0114] like Figure 1-Figure 10 The present invention proposes a bracket for pipe welding, comprising a support seat 1, a welding seat 2 and a limiter 3. The welding seat 2 is fixed on the support seat 1, and the pipeline 6 to be welded is fixed on the welding seat 2 to complete the welding work. The limiter 3 is used to fix the pipeline 6 to be welded to prevent the pipeline 6 to be welded from derailing during the welding process, resulting in welding failure.

[0115] The welding seat 2 is arranged on the side of the support seat 1 and is stacked and fixed. The support seat 1 supports the entire device and fixes the welding seat 2. The welding seat 2 has a limiting function to fix the pipeline 6 to be welded on this device.

[0116] The welding seat 2 is provided with a slider 1-1, and the support seat 1 is provided with a slide groove 1-2 corresponding to the slider 1-1. The support seat 1 and the welding seat 2 are detachably connected through the slide rail and the slider 1-1. The welding seat 2 can be slidably installed along the support seat 1, and the welding seat 2 can be replaced to select a welding seat 2 suitable for the shape or size of the pipeline 6 to be welded. The sliding connection not only provides convenience for installation, but also ensures the stability and accuracy of the welding seat 2 during use. When it is necessary to weld pipelines of different shapes or sizes, the current welding seat 2 can be easily removed and replaced with a welding seat suitable for the shape or size of the new pipeline. The flexibility and applicability of the device of the present invention are greatly improved, so that it can cope with various welding tasks according to various pipelines.

[0117] As a preferred embodiment of the present invention, a fixed structure is provided on the slide rail to ensure a stable connection between the support seat 1 and the welding seat 2, and to limit the slider 1-1 to prevent the slider 1-1 from sliding on its own due to external force or vibration, and the welding seat 2 from falling. When the slider 1-1 slides along the slide rail to the desired position, the fixed structure is operated to firmly fix the slider 1-1 on the slide rail, thereby ensuring the stability of the welding seat 2 during the connection.

[0118] Specifically, it can be a mechanical locking device, such as a locking screw, a buckle or a clip, to fix the position of the slider 1-1 on the slide rail; it can also be a magnetic fixing device, which uses magnetic force to adsorb the slider 1-1 to a specific position of the slide rail to achieve a stable connection; in addition, other innovative fixing technologies can also be used, such as an elastic locking mechanism, a self-locking sliding device, etc.

[0119] A base 4 is provided on the side of the support seat 1, and the base 4 contacts the working platform. The base 4 provides stable support for the entire structure, ensuring stability and safety during the welding process. The base 4 supports the support seat 1 and the welding seat 2, leaving enough space for debris and debris generated during the welding process to fall, making it easier to clean up the debris and debris generated during the welding process, thereby maintaining a clean working environment, and also preventing the accumulation of debris and debris, which hinders the placement and welding operation of the pipeline 6 to be welded.

[0120] The limiter 3 is fixed on the side of the welding seat 2, and the two ends of the limiter 3 are fixed on the left and right sides of the welding seat 2, and the remaining parts cover the upper side of the welding seat 2, which plays a fixing role for the welded part in the fixing groove 2-1. The limiter includes at least a first limiter 2-4 and a second limiter 2-5, which correspond to the two parts of the pipeline 2 to be welded, ensuring that the two pipelines are aligned in center and the axes are on the same straight line.

[0121] A fixing groove 2-1 is provided on the side of the welding seat 2 for placing the pipeline 6 to be welded. The shape of the fixing groove 2-1 includes common shapes according to the shapes of common pipelines 6 to be welded (such as V-shaped pipelines, inner circular (circular) pipelines, outer circular pipelines (understood by external shape), U-shaped pipelines, and other common managements), and is suitable for pipelines of different shapes.

[0122] The welding seat is provided with adjusting rings 2 on both sides of the first limit piece 2-4 and the second limit piece 2-5. The two adjusting rings 2 have the same structure. The adjusting rings 2-2 include a first adjusting ring 2-6 and a second adjusting ring 2-7, which are respectively fixed on both sides of the adjusting groove for fixing the limit piece 3 from both sides. The two adjusting rings 2-2 are both threadedly connected with a first adjusting rod 2-3. The end of the first adjusting rod 2-3 clamps the pipeline 6 to be welded to ensure the stability of the placement of the pipeline 6 to be welded. The threaded connection makes the insertion depth of the first adjusting rod 2-3 adjustable and can be adjusted by rotation to adapt to pipelines 6 to be welded of different sizes. The opposite ends of the two first adjusting rods 2-3 are provided with a first wear-resistant pad so that the first adjusting rod 2-3 can be close to the pipeline 6 to be welded.

[0123] The limiting member 3 is fixed to the side of the welding seat 2 through a connecting ring 1-3 arranged on the side of the supporting seat 1, and is detachably connected through the connecting ring 1-3, which is convenient for transportation and maintenance.

[0124] like Figure 3 and Figure 5 As shown, the limiting member 3 includes a first support arm 3-1 and a second support arm 3-2, the first support arm 3-1 and the second support arm 3-2 are arranged in parallel, and a fixed arm 3-3 is arranged between the first support arm 3-1 and the second support arm 3-2. The first support arm 3-1 and the second support arm 3-2 support the fixed arm 3-3 to leave enough space for the welding seat 2. When replacing the welding seat 2, the second support arm 3-2 does not need to be opened and the welding seat 2 can be directly pulled out.

[0125] A first fixing ring is provided at the end of the first support arm 3-1, and a threaded rod 3-4 is threadedly connected inside the first fixing ring. The threaded connection makes the limit member 3 detachable, and the threaded connection is tighter, so the second adjustment rod 3-7 can be fixed more stably during welding.

[0126] A second fixing ring is provided at the end of the second support arm 3-2, a fixing pin 3-5 is connected inside the second fixing ring, and a handle 3-6 is provided at the end of the fixing pin 3-5; when the fixing pin 3-5 needs to be pulled out, just hold the handle 3-6 to pull it out, which is convenient for opening the limit member 3.

[0127] One end of the limiter 3 is fixed by a threaded rod 3-4, and the other end is fixed by a fixing pin 3-5. When the fixing pin 3-5 is pulled out, the limiter 3 can be rotated, which is convenient for replacing the welding seat 2, and then ensuring that the connection between the welding seat 2 and the limiter 3 is stable while facilitating the rotation of the limiter 3 for subsequent operations.

[0128] The fixed arm 3-3 is provided with an adjustment hole, and the adjustment hole is threadedly connected with a second adjustment rod 3-7. The second adjustment rod 3-7 and the fixed arm 3-3 are threadedly connected, and the length of the second adjustment rod 3-7 extending into the limiter 3 can be adjusted to adapt to different sizes of pipelines 6 to be welded.

[0129] A second wear-resistant pad is provided at one end of the second adjusting rod 3 - 7 close to the welding seat 2 , so that the second adjusting rod 3 - 7 can be closely attached to the pipeline 6 to be welded.

[0130] The other end of the second adjusting rod 3-7 is connected to the first handle 3-8, and when adjusting the second adjusting tube, just hold the first handle 3-8 and turn it.

[0131] As a preferred embodiment of the present invention, the surface of the first handle 3-8 may also be provided with protrusions and wear-resistant pads that fit the human body.

[0132] like Figure 2 and Figure 4 As shown, as an embodiment of the present invention, the limiting member 3 is a semicircular structure, which can be directly covered on the upper side of the welding seat 2, and the third adjusting rod 3-12 is fixed so that its end is close to the upper side of the pipeline 6 to be welded, so as to limit the pipeline 6 to be welded.

[0133] Limiting rings are arranged at both ends of the limiting member 3, and fixing columns 3-9 corresponding to the limiting rings are arranged on the side of the support seat 1. The limiting rings are sleeved on the fixing columns 3-9 or passed through the rod-like structure horizontally with the limiting columns to complete the fixation.

[0134] A connecting hole is set on the side of the fixing column 3-9, and one end of the limiting member 3 is fixed by a fixing rod 3-10 passing through its corresponding limiting ring and the fixing column 3-9 corresponding to the limiting ring, and the other end of the limiting member 3 is fixed by a plug 3-11 passing through its corresponding limiting ring and the fixing column 3-9 corresponding to the limiting ring;

[0135] One end of the limiter 3 is fixed by a fixing rod 3-10, and the other end is fixed by a latch 3-11. When the latch 3-11 is pulled out, the limiter 3 can be rotated, which is convenient for replacing the welding seat 2, and then ensuring that the connection between the welding seat 2 and the limiter 3 is stable while facilitating the rotation of the limiter 3 for subsequent operations.

[0136] A limiting hole is set at the top of the limiting member 3, and the limiting hole is threadedly connected with a third adjusting rod 3-12. The third adjusting rod 3-12 is threadedly connected to the top of the limiting member 3, and the length of the third adjusting rod 3-12 extending into the limiting member 3 can be adjusted to adapt to different sizes of pipelines 6 to be welded.

[0137] A third wear-resistant pad is provided at one end of the third adjusting rod 3 - 12 close to the welding seat 2 , so that the third adjusting rod 3 - 12 can be closely attached to the pipeline 6 to be welded.

[0138] The other end of the third adjusting rod 3-12 is provided with a second handle 3-13. When adjusting the third adjusting tube, just hold the second handle 3-13 and turn it.

[0139] The support seat 1 is provided with a first prefabricated hole 3-14, and the welding seat 2 is provided with a second prefabricated hole 3-15 corresponding to the position of the first prefabricated hole 3-14, so that the welding slag can fall onto the tabletop. The welding slag and other debris generated during the welding process can smoothly fall onto the tabletop or other collecting devices through the channel formed by the first prefabricated hole 3-14 and the second prefabricated hole 3-15, preventing residue accumulation. The welding area can be kept relatively tidy, thereby reducing the burden of cleaning work, reducing the interference of debris on welding operations, improving the efficiency of welding operations, and ensuring the stability of welding quality.

[0140] A tray is arranged on the side of the welding seat 2, and the position of the tray corresponds to the position of the second prefabricated hole 3-15. When the welding slag falls, it falls into the tray, which is convenient for centralized cleaning.

[0141] The tray is fixed to the side of the welding seat 2 by means of buckles, and the buckles are selected from existing buckles on the market, such as:

[0142] 1. Press-type buckle:

[0143] The press-type buckle usually has an elastic pressing part. When the tray needs to be fixed, just press the pressing part and the buckle will lock the tray tightly. When removing, the tray can be easily removed by pressing or toggling the release part of the buckle again.

[0144] Advantages: easy to operate, firmly fixed, suitable for occasions of frequent disassembly.

[0145] 2. Rotating buckle:

[0146] The rotary buckle usually includes a fixed part and a rotatable locking part. The fixed part is installed on the welding seat 2, and the locking part is connected to the tray. By rotating the locking part, the tray can be fixed and removed.

[0147] Advantages: solid structure, strong locking force, suitable for occasions that need to bear large loads.

[0148] 3. Plug-in buckle:

[0149] The design of the plug-in buckle allows the tray to be fixed and removed by a simple plug-in and pull-out action. It usually has a slot and a latch 3-11, and the latch 3-11 can be inserted into the slot and locked.

[0150] Advantages: Fast installation and removal, suitable for occasions where pallets need to be replaced quickly.

[0151] 4. Spring buckle:

[0152] The spring-loaded clip uses the elastic force of the spring to fix the tray. When the tray is placed in a fixed position, the spring will tightly clamp the tray to prevent it from moving. When removing it, you can unlock the tray by pressing or flicking the release part of the spring.

[0153] Advantages: simple structure, reliable fixation, suitable for use in various environmental conditions.

[0154] 5. Button buckle:

[0155] Push-button latches usually consist of a button and a locking mechanism. When the button is pressed, the locking mechanism releases the tray, allowing it to be removed. When the button is released, the locking mechanism relocks the tray.

[0156] Advantages: intuitive operation, easy to understand and use, suitable for occasions where it needs to be frequently operated by non-professionals.

[0157] The tray and the welding seat 2 are detachably connected, and the tray can be removed during cleaning. Meanwhile, the detachable design makes the tray easy to replace.

[0158] like Figure 4 and Figure 5 As shown, the fixed groove 2-1 is a square groove, corresponding to a square pipeline.

[0159] like Figure 2 and Figure 3 As shown, the fixed groove 2-1 is a circular groove, corresponding to a circular pipeline.

[0160] As another preferred embodiment of the present invention, the fixing groove 2 - 1 can also be a V-shaped groove or a U-shaped groove, corresponding to pipelines of corresponding shapes.

[0161] The fixing groove 2 - 1 of the welding seat 2 is set to different sizes and shapes to correspond to different pipelines, thereby improving the adaptability of the device.

[0162] The base 4 is provided with a self-locking roller 5, which can roll easily on various ground surfaces, including smooth ground, slightly uneven ground, and even stairs. When the device needs to be fixed at a certain position, the roller can be locked by simply stepping on it or rotating the lock buckle, ensuring that the device of the present invention is stable and easy to move.

[0163] Preferably, the setting of the self-locking roller 5 is determined according to the weight of the device. When welding small pipelines, the device of the present invention is light in weight and can be easily carried and moved by the staff without the need to set the self-locking roller 5. When welding medium and large pipelines, the overall weight of the device of the present invention is heavy and inconvenient to move, and the self-locking roller 5 needs to be set to assist its movement.

[0164] The device of the present invention is made entirely of stainless steel, which increases the service life of the device.

[0165] A method for using a bracket for pipe welding,

[0166] S1: Select a suitable welding seat 2 according to the shape of the pipe 6 to be welded and the shape of the fixing groove 2-1, disconnect one end of the limiter 3, rotate the limiter 3, and replace the welding seat 2 through the slider 1-1 of the welding seat 2 and the slide groove 1-2 of the support seat 1;

[0167] S2: placing the pipe 6 to be welded in the fixing groove 2-1;

[0168] S3: rotating the limiting member 3 and reconnecting the disconnected end of the limiting member 3;

[0169] S4: Adjust the first adjusting rod 2-3 and the limiting member 3 to clamp the pipeline 6 to be welded;

[0170] S5: Perform welding work.

[0171] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

[0172] Many other changes and modifications may be made without departing from the concept and scope of the present invention.It should be understood that the present invention is not limited to the specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. A bracket for pipe welding, It is characterized in that It comprises a support seat (1), a welding seat (2) and a limiter (3). The welding seat (2) is arranged on the side of the supporting seat (1). The welding seat (2) is provided with a sliding block (1-1), and the supporting seat (1) is provided with a sliding groove (1-2) corresponding to the sliding block (1-1). The support seat (1) is provided with a base (4) on the side thereof. The limiting member (3) is fixed to the side of the welding seat (2). The side of the welding seat (2) is provided with a fixing groove (2-1). The welding seat (2) is provided with an adjustment ring (2-2). The limiting member (3) is fixed to the side of the welding seat (2) via a connecting ring (1-3) arranged on the side of the supporting seat (1).

2. A support for pipe welding as claimed in claim 1, It is characterized in that The limiting member (3) comprises at least a first limiting member (2-4) and a second limiting member (2-5). Both ends of the welding seat (2) are provided with adjustment rings (2-2). The adjustment ring (2-2) comprises a first adjustment ring (2-6) and a second adjustment ring (2-7). The first adjustment ring (2-6) and the second adjustment ring (2-7) are distributed on both sides of the fixing groove (2-1). The first adjustment ring (2-6) and the second adjustment ring (2-7) are both threadedly connected to a first adjustment rod (2-3), and a first wear-resistant pad is provided at the end of the first adjustment rod (2-3).

3. A support for pipe welding as claimed in claim 2, It is characterized in that The first limiting member (3) and the second limiting member (2-5) have the same structure. The first limiting member (2-4) comprises a first supporting arm (3-1) and a second supporting arm (3-2). The first support arm (3-1) and the second support arm (3-2) are arranged in parallel. A fixed arm (3-3) is provided between the first supporting arm (3-1) and the second supporting arm (3-2). A first fixing ring is provided at the end of the first supporting arm (3-1). A second fixing ring is provided at the end of the second supporting arm (3-2). The first fixing ring is internally threadedly connected with a threaded rod (3-4). A fixing pin (3-5) is connected inside the second fixing ring. A handle (3-6) is provided at the end of the fixing pin (3-5); The fixed arm (3-3) is provided with an adjustment hole. The adjusting hole is threadedly connected with a second adjusting rod (3-7). A second wear-resistant pad is provided at one end of the second adjustment rod (3-7) close to the welding seat (2). The other end of the second adjustment rod (3-7) is connected to a first handle (3-8).

4. A support for pipe welding as claimed in claim 2, It is characterized in that The first limiting member (2-4) is a semicircular structure. Limiting rings are provided at both ends of the limiting member (3). The side of the support seat (1) is provided with a fixing column (3-9) corresponding to the limiting ring. The side of the fixing column (3-9) is provided with a connection hole. One end of the limiting member (3) is fixed by a fixing rod (3-10) passing through its corresponding limiting ring and a fixing column (3-9) corresponding to the limiting ring. The other end of the limiting member (3) is fixed by a latch pin (3-11) passing through its corresponding limiting ring and a fixing column (3-9) corresponding to the limiting ring; A limiting hole is provided on the top of the limiting member (3). The limiting hole is threadedly connected with a third adjusting rod (3-12). A third wear-resistant pad is provided at one end of the third adjustment rod (3-12) close to the welding seat (2). The other end of the third adjustment rod (3-12) is provided with a second handle (3-13).

5. A bracket for pipe welding as claimed in claim 1, It is characterized in that The support seat (1) is provided with a first prefabricated hole (3-14), The welding seat (2) is provided with a second prefabricated hole (3-15) corresponding to the position of the first prefabricated hole (3-14).

6. A support for pipe welding as claimed in claim 5, It is characterized in that A tray is provided on the side of the welding seat (2). The tray is fixed to the side of the welding seat (2) by means of a buckle. The position of the tray corresponds to the position of the second prefabricated hole (3-15).

7. A bracket for pipe welding as claimed in claim 1, It is characterized in that The fixing groove (2-1) is a square groove.

8. A bracket for pipe welding as claimed in claim 1, It is characterized in that The fixing groove (2-1) is a circular groove.

9. A bracket for pipe welding as claimed in claim 1, It is characterized in that The base (4) is provided with a self-locking roller (5).

10. A method for using a bracket for pipe welding, A support for pipe welding as claimed in any one of claims 1 to 9 is used, It is characterized in that The following steps are involved: S1: Select a suitable welding seat (2) according to the shape of the pipeline (6) to be welded and the shape of the fixing groove (2-1), disconnect one end of the limiting member (3), rotate the limiting member (3), and replace the welding seat (2) through the slider (1-1) of the welding seat (2) and the slide groove (1-2) of the support seat (1); S2: placing the pipe to be welded (6) in the fixing groove (2-1); S3: rotating the limiting member (3) and reconnecting the disconnected end of the limiting member (3); S4: adjusting the first adjusting rod (2-3) and the limiting member (3) to clamp the pipeline to be welded (6); S5: Perform welding work.

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