Movable self-alignment height adjusting pipeline welding support

Abstract

The utility model provides a movable self-alignment height adjusting pipeline welding support. A supporting device for pipeline construction relates to the field of welding installation tools, and aims to solve the problem of low transfer efficiency caused by inconvenience in position adjustment of an existing supporting device for pipeline construction, a movable base is arranged, an adjustable telescopic structure is connected between the movable base and a carrier roller frame to adjust the height distance between the movable base and the carrier roller frame, and a plurality of universal wheels are arranged on the movable base. When the universal wheels are locked, stable supporting can be provided for the carrier roller frame, and when the universal wheels are unlocked, the whole welding support can be driven to adjust the position, so that the welding support is suitable for pipeline welding work at different positions, and the transferring efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of welding and installation tooling, and particularly relates to a movable self-aligning height-adjustable pipeline welding support. Background Technique

[0002] When pipelines are welded and installed in a thermal power plant workshop, the pipelines are mostly fixed by means of supports and hangers. Hoists are used on site to position the pipelines. It is difficult to accurately adjust the pipelines in the horizontal direction, and there is also an unstable state, which leads to misalignment of the pipelines from the stage of wire laying and positioning to the stage of preparing for welding, affecting the butt joint accuracy of the pipelines. When the civil construction has been completed, the pipeline supports and hangers need to be welded to receive the force bearing points, causing secondary damage to the completed parts on site, affecting the overall construction progress and the quality of finished product protection. The on-site construction workers use pipes to support between the ground and the pipelines. Its structure is not stable enough, and it is easy to be skewed due to bumping and other reasons, and there are certain safety hazards.

[0003] A Chinese patent (publication number CN209319147U) discloses a liftable support device for gas pipeline construction, which includes a bottom fixed seat, a liftable support device fixedly arranged on the bottom fixed seat, and a roller device fixed at the upper end of the liftable support device. The roller device includes a bottom plate, two roller frames relatively fixed on the bottom plate, and rollers rotatably installed on the roller frames. The two roller frames relatively fixed on the bottom plate can cooperate to reliably support the gas pipeline to be welded. And, since the rollers can rotate freely relative to the center line of the roller frames, during the welding process, the pipeline can be easily rotated to avoid the trouble of the operator rotating around the weld. However, multiple fixed bases are used to ensure the stability of the pipeline carried above, resulting in difficulty in transferring the entire support device. It is difficult to manually carry the whole device for moving, and auxiliary machinery is needed to assist, which is not conducive to large-scale construction and popularization. In addition, when adjusting the height, it uses threads with opposite rotation directions to be threadedly connected between the lower support column and the upper support column. When adjusting, tools such as wrenches are needed for operation and adjustment, which is inconvenient for operation and locking. Content of the Utility Model

[0004] The purpose of the utility model is to address the defects existing in the prior art and provide a movable self-aligning height-adjustable pipeline welding support. A movable base is provided, and an adjustable telescopic structure is connected between the movable base and the roller support to adjust the height distance between the two. Multiple universal wheels are arranged on the movable base. When the universal wheels are locked, they can provide stable support for the roller support, and when the universal wheels are unlocked, they can drive the entire welding support to adjust its position, so as to adapt to pipeline welding work at different positions and improve the transfer efficiency.

[0005] To achieve the above purpose, the following technical solutions are adopted:

[0006] A movable self-aligning height-adjustable pipe welding bracket, comprising:

[0007] A moving base, including a moving base plate and a circular ring bottom pipe that are coaxial and axially spaced apart. A plurality of inclined support pipes are connected between the moving base plate and the circular ring bottom pipe. A plurality of universal wheels are installed on the circular ring bottom pipe, and each universal wheel is provided with a brake pedal to unlock or lock the universal wheel;

[0008] A roller frame, on which rollers are rotatably installed. Two rollers with parallel and spaced axes are used as a group, and the rollers in the same group form a bearing part for bearing the pipe;

[0009] A telescopic structure, including an inner column and an outer column. The outer column is in a cylindrical shape and sleeved outside the inner column to form an axial sliding fit. One end of the inner column is coaxially connected to the moving base plate, and one end of the outer column is connected to the roller frame.

[0010] Further, the moving base plate is disc-shaped, the circular ring bottom pipe is circular, the diameter of the moving base plate is smaller than the diameter of the circular ring bottom pipe, and the inclined support pipes are inclinedly distributed relative to the axis of the moving base plate.

[0011] Further, one end of the inclined support pipe is connected to the moving base plate, and the other end is connected to the circular ring bottom pipe. The axis of the inclined support pipe is coplanar with the axis of the moving base plate.

[0012] Further, there are four inclined support pipes, which are evenly distributed along the circumferential direction of the moving base plate. The universal wheels and the inclined support pipes are distributed in one-to-one correspondence, and the universal wheels and the corresponding inclined support pipes are installed at the same circumferential position of the circular ring bottom pipe.

[0013] Further, the universal wheels are installed on the side of the circular ring bottom pipe away from the moving base plate, and installation holes for fitting the mounting shafts of the universal wheels are provided on the circular ring bottom pipe.

[0014] Further, a rack guide rail distributed along the axial direction of the inner column is provided on the outer peripheral wall of the inner column, a groove for slidingly mating with the rack guide rail is provided on the inner wall of the outer column, a gear is rotatably installed on the outer wall of the outer column, the gear passes through the side wall of the outer column and meshes with the rack guide rail, and a handwheel is coaxially corresponding to the gear.

[0015] Further, the gear is installed on the outer column through a rotating support, and the handwheel rotates coaxially with the gear.

[0016] Further, a locking wrench is rotatably connected to the outer wall of the outer column, and a stop block is provided on the locking wrench. When the locking wrench is driven, the stop block is driven to be stuck between the inner column and the outer column to lock the sliding of the inner column and the outer column.

[0017] Further, two groups of rollers are provided on the roller frame, and the bearing parts formed by the two groups of rollers are axially spaced apart along the bearing pipe.

[0018] Further, an elastic layer is provided at the position where the outer circumferential surface of the idler roller contacts the pipeline.

[0019] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0020] (1) Aiming at the problem that the support device for pipeline construction is inconvenient to adjust the position at present, resulting in low transfer efficiency, a mobile base is provided. An adjustable telescopic structure is connected between the mobile base and the idler roller frame to adjust the height distance between the two. A plurality of universal wheels are arranged on the mobile base. When the universal wheels are locked, they can provide stable support for the idler roller frame. When the universal wheels are unlocked, they can drive the entire welding bracket to adjust the position, so as to adapt to the pipeline welding work at different positions and improve the transfer efficiency.

[0021] (2) The mobile base adopts a frustum-shaped structure formed by connecting inclined support pipes between a mobile base plate and a circular ring bottom pipe, forming a structure with a smaller upper part and a larger lower part. The mobile base plate can connect and carry the inner column, and the circular ring bottom pipe can install a plurality of universal wheels. The circular ring bottom pipe can be grounded at multiple positions to achieve stable load bearing. The mobile base plate and the circular ring bottom pipe are coaxially distributed, and the force is dispersed to improve stability.

[0022] (3) The telescopic structure is composed of an inner column and an outer column in sliding fit. The outer column is a cylindrical structure with an opening on the side wall. The rack guide rail provided on the inner column meshes with the gear connected to the hand wheel. The hand wheel is rotatably installed on the outer column. By controlling the relative sliding of the outer column and the inner column through the hand wheel, the height of the idler roller frame is adjusted. Combining the locking handle to lock or unlock the sliding positions of the inner column and the outer column improves the convenience of adjusting the idler roller frame and the safety after adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The specification drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0024] Figure 1 It is a schematic diagram of a movable self-aligning height-adjustable pipeline welding bracket in an embodiment of the present utility model.

[0025] Figure 2 It is a schematic diagram of a universal wheel in an embodiment of the present utility model.

[0026] Figure 3 It is a schematic structural diagram of a mobile base in an embodiment of the present utility model.

[0027] Figure 4 It is a schematic side view of a mobile base in an embodiment of the present utility model.

[0028] Figure 5Schematic diagram of the connection between the inner column and the mobile base in the embodiment of the present utility model.

[0029] Figure 6 Schematic diagram of the locking wrench in the embodiment of the present utility model.

[0030] Figure 7 Schematic diagram of the gear-rack drive in the embodiment of the present utility model.

[0031] Figure 8 Schematic diagram of the connection between the outer column and the idler bracket in the embodiment of the present utility model.

[0032] In the figure, 1. Universal wheel, 2. Mobile base, 3. Inner column, 4. Rack guide, 5. Locking wrench, 6. Gear, 7. Handwheel, 8. Outer column, 9. Idler bracket, 10. Idler, 101. Universal wheel mounting shaft, 102. Universal wheel adjustment disc, 103. Roller, 104. Brake pedal, 201. Mobile base plate, 202. Inclined support tube, 203. Circular bottom tube, 204. Mounting hole, 801. Rotating support, 802. Handwheel support, 803. Cutting groove, 804. Wrench support, 805. Outer wall of the outer column, 901. Rib plate, 902. Seat plate, 903. Idler vertical plate, 904. Idler axis. Detailed implementation mode

[0033] In a typical implementation mode of the present utility model, as Figures 1-8 shown, a movable self-aligning height-adjustable pipe welding bracket is proposed.

[0034] When supporting a pipe, multiple fixed bases are used to ensure the stability of the pipe carried above, resulting in difficulty in transferring the entire support device and difficulty in manual handling during overall movement. Based on this, a movable self-aligning height-adjustable pipe welding bracket is provided. Multiple universal wheels 1 are provided on the mobile base 2 to drive the mobile base 2 and the idler bracket 9 carried thereon to adjust the position. The telescopic structure can adjust the distance between the mobile base 2 and the idler bracket 9 to adapt to the pipe support requirements at different heights.

[0035] As Figure 1 shown, a movable self-aligning height-adjustable pipe welding bracket includes a mobile base 2, an idler bracket 9 and a telescopic structure. The mobile base 2 and the idler bracket 9 are connected by the telescopic structure. The idler bracket 9 can contact and support the pipe. The telescopic structure can telescopically adjust the length, thereby changing the height of the idler bracket 9. The mobile base 2 can drive the idler bracket 9 to move and adjust the position. The universal wheels 1 can provide stable support for the idler bracket 9 when locked, and can drive the entire welding bracket to adjust the position when the universal wheels 1 are unlocked, so as to adapt to the pipe welding work at different positions and improve the handling efficiency.

[0036] As Figure 3And Figure 4 As shown, the moving base 2 is composed of a moving base plate 201 and a circular ring bottom tube 203, which are coaxial and axially spaced apart, and are connected by multiple inclined support tubes 202 to enhance the stability and load-bearing capacity of the overall structure. A plurality of universal wheels 1 are installed on the circular ring bottom tube 203. The universal wheels 1 allow the welding bracket to move freely in the unlocked state to adapt to the pipeline welding requirements at different positions. As Figure 2 shown, each universal wheel 1 is equipped with a brake pedal 104. By stepping on or releasing the brake pedal 104, the universal wheel 1 can be conveniently unlocked or locked to ensure stability during welding operations.

[0037] As Figure 1 And Figure 8 shown, a roller 10 is rotatably installed on the roller support 9, and the roller 10 is used to carry the pipeline to be welded. Two rollers 10 with parallel axes and spaced apart are used as a group to form self-aligning of the pipeline. The axis of the pipeline is located on the perpendicular bisecting plane of the connection line of the axes 904 of the rollers in the same group, which can support the pipeline more effectively. The rollers 10 in the same group are spaced apart and jointly form a loading part for loading the pipeline, ensuring the stability and safety of the pipeline during the welding process.

[0038] As Figure 6 shown, the telescopic structure is composed of an inner column 3 and an outer column 8. The outer column 8 is in a cylindrical shape and sleeved outside the inner column 3, and the two form an axial sliding fit. By adjusting the relative position of the inner and outer columns 8, the height distance between the roller support 9 and the moving base 2 is adjusted.

[0039] As Figure 5 shown, one end of the inner column 3 is coaxially connected to the moving base plate 201. As Figure 7 shown, one end of the outer column 8 is connected to the roller support 9. By adjusting the telescopic structure, the height of the roller support 9 can be conveniently adjusted according to actual needs to adapt to the pipeline welding requirements at different heights and angles.

[0040] Traditional pipeline welding brackets often lack mobility, resulting in frequent handling and adjustment of the bracket position when welding at different positions, with low efficiency. In this embodiment, by installing universal wheels 1 and equipped with brake pedals 104, rapid movement and stable positioning of the welding bracket are achieved, greatly improving work efficiency. Different pipeline welding tasks may require different height settings, while traditional brackets are often difficult to adjust flexibly. In this embodiment, the telescopic structure can easily adjust the height of the roller support 9 according to needs to adapt to the welding requirements at different heights and angles.

[0041] During pipeline welding, it is necessary to ensure the stability and safety of the pipeline to prevent welding quality problems caused by displacement. In this embodiment, by using multiple sets of parallel rollers 10 as the bearing part and a stable mobile base 2 structure, the bearing stability and welding quality of the pipeline are effectively improved.

[0042] By increasing mobility and height adjustment functions, the flexibility and efficiency of pipeline welding work are improved, and the time cost of carrying and adjusting the bracket is reduced. The stable load-bearing structure and flexible adjustment ability ensure the stability and safety of the pipeline during welding, and effectively avoid welding quality problems caused by displacement. It can be applied to pipeline welding tasks in various positions and angles, enhancing the adaptability and versatility of the welding bracket.

[0043] Specifically, Figure 2 and Figure 3 As shown, the movable base plate 201 is in the shape of a disc, the annular bottom tube 203 is in the shape of an annular ring, and the diameter of the movable base plate 201 is smaller than the diameter of the annular bottom tube 203. This makes the base present a truncated cone structure with a small top and a large bottom, and the overall structure is compact and stable. The oblique support tube 202 is tilted relative to the axis of the movable base plate 201, which enhances the load-bearing capacity and stability of the base.

[0044] One end of the inclined support tube 202 is connected to the movable base plate 201, and the other end is connected to the circular bottom tube 203, and its axis is coplanar with the axis of the movable base plate 201, so that the inclined support tube 202 can stably transmit force, so that the load above can be transferred to the circular bottom tube 203, ensuring the integrity and rigidity of the base structure.

[0045] There are four oblique support tubes 202, which are evenly distributed along the circumferential direction of the movable base plate 201. The universal wheels 1 are distributed one by one with the oblique support tubes 202, and the universal wheels 1 and the corresponding oblique support tubes 202 are installed at the same circumferential position of the circular bottom tube 203; the universal wheels 1 are installed on the side of the circular bottom tube 203 away from the movable base plate 201, and each universal wheel 1 is provided with a brake pedal 104. The universal wheels 1 are distributed one by one with the oblique support tubes 202, and are installed at the same circumferential position of the circular bottom tube 203, so that the force of the oblique support tubes 202 can be more accurately transmitted to the universal wheels 1.

[0046] like Figure 2As shown in the figure, the ring bottom pipe 203 is provided with an installation hole 204 for fitting the universal wheel mounting shaft 101. The universal wheel 1 is vertically arranged with the universal wheel mounting shaft 101, so that the main body of the universal wheel 1 can rotate around the universal wheel mounting shaft 101, facilitating the displacement of the pipe welding bracket. The universal wheel 1 is provided with a universal wheel adjustment disc 102 capable of realizing height fine adjustment to ensure the level of the idler bracket 9. The rotating part of the universal wheel 1 is a roller 103, and the moving resistance is reduced through the roller 103, and the entire welding bracket can be conveniently pushed to the position where it is needed by manual. The universal wheel 1 is also equipped with a brake pedal 104. After being in place, stepping on the brake pedal can fix the universal wheel 1 at the welding station to support and position the pipe to be welded.

[0047] As Figure 5 shown, on the outer peripheral wall of the inner column 3, there are rack guides 4 distributed along the axial direction of the inner column 3. On the inner wall of the outer column 8, there is a groove that slidably cooperates with the rack guide 4. A gear 6 is rotatably installed on the outer wall 805 of the outer column 8. The gear 6 passes through the side wall of the outer column 8 and meshes with the rack guide 4, enabling an axial sliding between the outer column 8 and the inner column 3, while restricting the upward rotation of the ring, ensuring the accurate meshing of the rack guide 4 and the gear 6. The gear 6 corresponds to a handwheel 7 coaxially.

[0048] A gear 6 is rotatably installed on the outer wall 805 of the outer column 8. The gear 6 passes through the side wall of the outer column 8 and meshes with the rack guide 4. The gear 6 corresponds to a handwheel 7 coaxially. By rotating the handwheel 7, the gear 6 can be driven to rotate, thereby driving the relative movement between the inner column 3 and the outer column 8.

[0049] The axle of the gear 6 cooperates with the rotating support 801 on the outer column 8. The handwheel 7 is rotatably installed with a handwheel support 802. The handwheel 7 and the gear 6 share a common shaft. Through grooving on the shaft and installing a key to transmit torque, the handwheel 7 and the gear 6 rotate synchronously. On one side of the rotating support 801 of the outer column 8, there is a cut groove 803. The gear 6 passes through the cut groove 803 and meshes with the rack guide 4. By operating the handwheel 7 to drive the gear 6 to rotate, the gear 6 converts the rotation into a vertical movement through the rack guide 4 to adjust the height of the pipe welding bracket.

[0050] A locking wrench 5 is also rotatably connected to the outer wall 805 of the outer column 8. The locking wrench 5 is rotatably installed on the outer column 8 through a wrench support 804. The locking wrench 5 is provided with a stop block. When the locking wrench 5 is driven, the stop block is driven to be stuck between the inner column 3 and the outer column 8 to lock the sliding of the inner column 3 and the outer column 8. In this embodiment, the stop block can be a cam structure arranged at the rotating position of the locking wrench 5. One side of the wrench support 804 is provided with a slot for the cam to pass through. When the locking wrench 5 is opened, the cam does not contact the inner column 3. When the locking wrench 5 is driven to close, the eccentric cam can pass through the slot and abut and press the inner column 3, locking the relative sliding of the inner column 3 and the outer column 8.

[0051] When locking is required, drive the locking wrench 5 to make the stopper snap into the space between the inner column 3 and the outer column 8, thereby locking the sliding of the inner and outer columns 8. The locking wrench 5 is made of rubber and is used for height positioning. When adjusting the height of the pipe welding bracket, first open the locking wrench 5 to unlock the outer column 8 and the inner column 3. After driving the relative movement of the inner column 3 and the outer column 8 through the handwheel 7 to adjust the height and position it, press the locking wrench 5, use the cam to press tightly against the inner column 3. The locking wrench 5 is made of rubber, and after pressing, it uses its own elasticity to clamp on the brackets of the inner and outer columns 8 to prevent the relative movement of the inner column 3 and the outer column 8 and prevent the idler bracket 9 from accidentally slipping. After manually lifting the locking wrench 5, the height of the pipe welding bracket can be adjusted with the handwheel 7.

[0052] There are two groups of rollers 10 provided on the idler bracket 9, and the bearing parts formed by the two groups of rollers 10 are arranged at intervals along the axial direction of the bearing pipe. This arrangement can better support the pipe and prevent the pipe from shifting during welding.

[0053] An elastic layer is provided at the position where the outer circumferential surface of the roller 10 contacts the pipe. This can not only protect the surface of the pipe from damage, but also increase the friction between the roller 10 and the pipe to ensure the stability of the pipe during welding.

[0054] As Figure 8 shown, in this embodiment, the idler bracket 9 includes a rib plate 901, a seat plate 902 and an idler vertical plate 903. The outer column 8 is welded to the seat plate 902. The rib plate 901 is used as a rib to connect the seat plate 902 and the outer column 8. An opening for rotatably connecting the roller 10 is provided on the idler vertical plate 903, and the axis of the opening is the roller axis 904. During welding, ensure the perpendicularity of the axis of the outer column 8 and the roller axis 904, so as to ensure that the idler bracket 9 is in a horizontal structure. When positioning the two axes corresponding to the rollers 10 in the same group, they are in a parallel state, ensuring that the rollers 10 are in a parallel state after installation, so as to realize the function of self-aligning the axis of the welded pipe. The roller 10 is fixed to the roller seat by an axis. The elastic layer on the outer layer of the roller 10 is made of modified nylon material, which is wear-resistant, heat-resistant and slightly elastic, can rotate on the roller seat, and can effectively support during pipe welding without damaging the pipe anti-corrosion coating.

[0055] The moving base 2 can also be made of round pipes or other steel structures, and the structural dimensions can be adjusted according to requirements to ensure the stability of the base of the pipe welding bracket.

[0056] When multiple groups of parallel rollers 10 are installed on the idler bracket 9, the seat plate 902 can also be made of plate parts with other structural forms, and the idler vertical plate 903 can be adjusted in height according to requirements and ensure that its stiffness meets the load-bearing requirements.

[0057] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A movable self-aligning height-adjustable pipe welding bracket, characterized in that, Comprising: A mobile base, including a mobile base plate and an annular bottom tube that are coaxial and axially spaced apart. A plurality of inclined support tubes are connected between the mobile base plate and the annular bottom tube. A plurality of universal wheels are installed on the annular bottom tube, and each universal wheel is provided with a brake pedal to unlock or lock the universal wheel; A roller support frame, on which rollers are rotatably installed. Two rollers with parallel and spaced axes are taken as a group, and the rollers in the same group form a bearing portion for bearing the pipeline; A telescopic structure, including an inner column and an outer column. The outer column is cylindrical and sleeved outside the inner column to form an axial sliding fit. One end of the inner column is coaxially connected to the mobile base plate, and one end of the outer column is connected to the roller support frame.

2. The movable self-aligning height-adjustable pipe welding bracket according to claim 1, wherein, The mobile base plate is disc-shaped, the annular bottom tube is circular, the diameter of the mobile base plate is smaller than the diameter of the annular bottom tube, and the inclined support tubes are inclinedly distributed relative to the axis of the mobile base plate.

3. The movable self-aligning height-adjustable pipe welding bracket according to claim 2, wherein, One end of the inclined support tube is connected to the mobile base plate, and the other end is connected to the annular bottom tube. The axis of the inclined support tube is coplanar with the axis of the mobile base plate.

4. The movable self-aligning height-adjustable pipe welding bracket according to claim 1 or 2 or 3, characterized in that, There are four inclined support tubes, which are evenly distributed along the circumferential direction of the mobile base plate. The universal wheels and the inclined support tubes are distributed in one-to-one correspondence, and the universal wheels and the corresponding inclined support tubes are installed at the same circumferential position of the annular bottom tube.

5. The movable self-aligning height-adjustable pipe welding bracket according to claim 4, characterized in that, The universal wheels are installed on the side of the annular bottom tube away from the mobile base plate, and the annular bottom tube is provided with mounting holes for fitting the mounting shafts of the universal wheels.

6. The movable self-aligning height-adjustable pipe welding bracket according to claim 1, characterized in that, A rack guide rail is provided on the outer peripheral wall of the inner column along the axial direction of the inner column. A groove for slidingly fitting the rack guide rail is provided on the inner wall of the outer column. A gear is rotatably installed on the outer wall of the outer column. The gear passes through the side wall of the outer column and meshes with the rack guide rail, and a handwheel is coaxially corresponding to the gear.

7. The movable self-aligning height-adjustable pipe welding bracket according to claim 6, wherein, The gear is installed on the outer column through a rotating support, and the handwheel rotates coaxially with the gear.

8. The movable self-aligning height-adjustable pipeline welding bracket according to claim 6 or 7, characterized in that, A locking wrench is rotatably connected to the outer wall of the outer column, and a stop block is provided on the locking wrench. When the locking wrench is driven, the stop block is driven to be clamped between the inner column and the outer column to lock the sliding of the inner column and the outer column.

9. The movable self-aligning height-adjustable pipe welding bracket according to claim 1, characterized in that, Two groups of rollers are provided on the roller support frame, and the bearing portions formed by the two groups of rollers are axially spaced apart along the bearing pipeline.

10. The movable self-aligning height-adjustable pipe welding bracket according to claim 1 or 9, characterized in that, An elastic layer is provided at the position where the outer circumferential surface of the roller contacts the pipeline.

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