A pipe welding support device

Abstract

The present invention discloses a pipe welding support device, comprising a support, a transmission frame is arranged in the middle of the support, and a primary driving mechanism capable of driving the transmission frame to lift and reciprocate in the vertical direction is also arranged on the support; the bottom of the transmission frame is linked to two lifting pieces capable of abutting against the bottom of a steel conduit to lift the steel conduit, the two lifting pieces are arranged in a horizontal direction and have clearance fit, the bottom of the transmission frame is also linked to a pipe pressing piece capable of abutting against the top of a sleeve to press the sleeve downward, and the pipe pressing piece is arranged between the two lifting pieces in the horizontal direction; the transmission frame is also linked to a secondary driving mechanism capable of driving the pipe pressing piece to lift and reciprocate in the vertical direction. The pipe welding support device can achieve full-circle welding between the sleeve and the steel conduit to ensure the sealing effect of the assembly structure between the sleeve and the steel conduit, and can avoid structural bending and deformation of the pipe during welding.

Description

Technical Field

[0001] The invention relates to the technical field of positioning support equipment for pipe fitting welding assembly, and in particular to a pipe fitting welding support device. Background Art

[0002] During the construction of the building structure, when the pre-buried electrical steel conduit is installed on the roof of the house, the junction boxes on the roof are distributed in different rooms and need to be fixed at the specified points to complete the alignment. After the components at each point are welded and installed according to the circuit layout requirements, there will be a need to assemble the free ends between two steel conduits that have completed the basic installation at some locations. At this time, it is necessary to rely on the sleeve for matching welding to realize the corresponding steel conduit assembly.

[0003] When the above-mentioned welding construction between the casing and the steel conduit is carried out, when the casing and the steel conduit are welded to the bottom position of the component, because the main structure of the conduit has been installed on the corresponding main structure such as the pipe network or the top plate, it is difficult to lift up the section of the conduit that needs to be welded to the conduit, resulting in insufficient operating space under the conduit, which makes it impossible for the staff to weld the bottom position of the component where the casing and the steel conduit match, and finally leaves unwelded component structural defects at the bottom of the casing, resulting in the inability to form a full circle of welding between the casing and the steel conduit. If these unwelded parts are not processed, when the subsequent matching concrete pouring operation is carried out, the cement slurry will enter the steel conduit through the gaps and gaps of the unwelded parts where the casing and the bottom of the steel conduit match, thereby blocking the conduit and causing adverse effects on the relevant cable layout structure.

[0004] At present, the traditional way to deal with the above-mentioned casing and steel conduit adapter assembly structure with the bottom unwelded defect is to wrap the casing and steel conduit with tape in a full circle to cover and seal the defective position of the casing bottom that is not welded in place, in order to prevent cement slurry from entering the interior of the steel conduit through this place. However, due to the fact that the tape can only provide a certain degree of bonding effect, its connection strength is poor, and its sealing structure for the defective position is not reliable. In actual operation, after the tape wrapping treatment, there is still a risk of cement slurry entering the defective position at the bottom of the casing.

[0005] In addition, the industry currently also adopts the operation method of lifting and welding the casing and the corresponding steel conduit separately. Specifically, the casing and the steel conduit at one end are appropriately lifted and then welded in place. After the end is fully welded, the casing and the steel conduit at the other end are appropriately lifted and welded in place. Although this operation method can achieve full welding assembly between the casing and the steel conduit, it requires lifting the two ends of the casing separately before carrying out the operation. In actual operation, this operation method of lifting a single end separately can easily cause the casing to bend and deform, resulting in abnormality of the main structure of the casing, causing inconvenience to the relevant pipe network and its supporting steel bar laying arrangement, and also causing adverse effects on the corresponding house roof construction.

[0006] In view of this, how to achieve full-circle welding between the casing and the steel conduit to ensure the sealing effect of the assembly structure between the casing and the steel conduit and avoid bending and deformation of the pipe structure during welding is an important technical problem that technical personnel in this field currently need to solve. Summary of the invention

[0007] The object of the present invention is to provide a pipe welding support device, which can achieve full-circle welding between the casing and the steel conduit to ensure the sealing effect of the assembly structure between the casing and the steel conduit, and can avoid structural bending and deformation of the pipe during welding.

[0008] In order to solve the above technical problems, the present invention provides a pipe welding support device, comprising a bracket, a transmission frame is arranged in the middle of the bracket, and a primary driving mechanism capable of driving the transmission frame to reciprocate and rise and fall in a vertical direction is also arranged on the bracket;

[0009] The bottom of the transmission frame is linked with two lifting pieces that can abut against the bottom of the steel pipe to lift the steel pipe, and the two lifting pieces are arranged in a horizontal direction and have clearance fit. The bottom of the transmission frame is also linked with a pipe pressing piece that can abut against the top of the casing to press the casing downward, and the pipe pressing piece is arranged between the two lifting pieces in the horizontal direction;

[0010] The transmission frame is also linked with a secondary driving mechanism capable of driving the pipe pressing member to reciprocate and lift in a vertical direction.

[0011] Preferably, the transmission frame comprises an upper support plate and a lower support plate extending horizontally, and the upper support plate and the lower support plate are arranged in a vertical direction from top to bottom and are clearance-matched;

[0012] The primary driving mechanism is linked to the middle part of the upper supporting plate, and the secondary driving mechanism is linked to the middle part of the lower supporting plate.

[0013] Preferably, the secondary driving mechanism comprises a secondary transmission rod, a secondary rotating disk and a rolling bearing, the axes of which extend in the vertical direction and are coaxially arranged;

[0014] The secondary transmission rod passes through the middle part of the lower support plate in the vertical direction, the secondary rotating disk is coaxially connected to the top end of the secondary transmission rod, the inner ring of the rolling bearing is coaxially connected to the bottom end of the secondary transmission rod, and the outer ring of the rolling bearing is connected to the middle part of the pressure pipe fitting.

[0015] Preferably, the tube pressing member is a horizontally extending tube pressing plate.

[0016] Preferably, the primary driving mechanism comprises a primary transmission rod, a primary rotating disk and a locking assembly, the axes of which extend in the vertical direction and are coaxially arranged;

[0017] The primary rotating disk is coaxially linked to the top end of the primary transmission rod, the locking assembly is aligned and linked to the bottom end of the primary transmission rod, and the locking assembly is linked to the middle part of the upper support plate.

[0018] Preferably, the locking assembly includes a lower locking plate arranged in close contact with the bottom surface of the upper support plate and an upper locking plate arranged in close contact with the top surface of the upper support plate. The lower part of the primary transmission rod is a threaded section with an external thread, and the threaded section passes through the middle part of the upper support plate in a vertical direction. The lower locking plate and the upper locking plate are coaxially arranged and threadedly fastened to the outer periphery of the threaded section.

[0019] Preferably, the lifting member is a lifting hook with both ends bent upward.

[0020] Preferably, a lifting chain is connected between the lifting hook and the transmission frame, the top end of the lifting chain is linked to the bottom of the transmission frame, and the bottom end of the lifting chain is linked to at least one end of the lifting hook.

[0021] Preferably, the upper part of the bracket is provided with two cross arms extending in the horizontal direction, the two cross arms are arranged in parallel and fit with clearance, a positioning seat is overlapped between the two cross arms, and the primary driving mechanism is linkedly arranged on the positioning seat.

[0022] Preferably, a slide rail extending in a horizontal direction is provided on the cross arm, and the positioning seat is slidably disposed on the slide rail.

[0023] Compared with the above background technology, the pipe welding support device provided by the present invention, during its operation and use, when it is necessary to align and weld the horizontally arranged casing and the two steel conduits at both ends thereof, firstly align and insert the two steel conduits into the two ends of the casing respectively, and then use the primary driving mechanism to drive the transmission frame to descend moderately. At this time, the lifting member and the pipe pressing member both move downward synchronously with the transmission frame until the lifting member reaches the position where it can fit with the bottom of the assembled steel conduit, and then the lifting member is aligned and inserted into the gap between the bottom of the steel conduit and the ground, and the secondary driving mechanism is used to drive the pipe pressing member to move downward moderately until the bottom of the pipe pressing member reliably abuts against the top of the assembled casing. At this time, since the two steel conduits have been aligned and inserted into the two ends of the casing respectively, the lifting member and the bottom of the steel conduit are lifted in combination with the downward pressure of the middle part of the casing by the pipe pressing member, so as to form a reliable clamping and positioning of the casing and steel conduit pre-assembled structure, and ensure the coaxial adaptation state of the casing and the steel conduit. Afterwards, the primary driving mechanism can be used to drive the transmission frame to lift as a whole, thereby ensuring the relative position of the pipe pressing fitting and the lifting fitting, and lifting synchronously with the transmission frame. At this time, the steel pipe will be lifted appropriately under the lifting action of the lifting fitting, until the lifting height of the steel pipe is sufficient to ensure that the space below the steel pipe can meet the welding operation requirements. Afterwards, the staff can perform full-circle welding assembly on the casing and each steel pipe at both ends to ensure that there are no welding gaps or structural defects between the casing and the steel pipe, and to avoid cement slurry entering the steel pipe through the welding gap during subsequent concrete pouring and causing pipeline blockage; at the same time, due to the downward pressure of the middle section of the pipe pressing fitting and the lifting and matching structure of the lifting fitting at both ends, the casing and the steel pipe always maintain a constant axial position and maintain force balance during the welding operation, effectively avoiding the bending and deformation of the casing structure caused by the imbalance of the pipe structure, greatly improving the operation accuracy during the welding process, and making the pipeline assembly structure more regular and reliable after the welding assembly is completed.

[0024] In another preferred embodiment of the present invention, the transmission frame includes an upper support plate and a lower support plate extending horizontally, and the upper support plate and the lower support plate are arranged in a vertical direction from top to bottom and are clearance-matched; the primary drive mechanism is linked to the middle of the upper support plate, and the secondary drive mechanism is linked to the middle of the lower support plate. Arranging and connecting the primary drive mechanism and the secondary drive mechanism to the upper support plate and the lower support plate respectively can effectively avoid structural interference between the primary drive mechanism and the secondary drive mechanism, ensure the smooth operation of each drive mechanism, and reasonably utilize the assembly structure space at the transmission frame, so that the assembly connection between the transmission frame and each drive mechanism and related linkage components is more reliable, and the corresponding linkage effect and action efficiency are also optimized accordingly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A structural front view of a pipe welding support device provided in a specific embodiment of the present invention;

[0027] Figure 2 for Figure 1 Side view of

[0028] Figure 3 for Figure 1 Top view of the .

[0029] in:

[0030] 10- bracket; 101- pillar; 102- crossbeam; 103- base; 104- cross arm; 105- positioning seat; 106- slide rail;

[0031] 11-transmission frame; 111-upper support plate; 112-lower support plate; 113-connecting frame;

[0032] 12-lifting hook; 121-lifting chain;

[0033] 13-Pipe fittings;

[0034] 141-secondary transmission rod; 142-secondary rotating disk; 143-rolling bearing;

[0035] 151 - primary transmission rod; 152 - primary rotating disk; 153 - lower locking disk; 154 - upper locking disk. DETAILED DESCRIPTION

[0036] The core of the present invention is to provide a pipe welding support device, which can achieve full-circle welding between the casing and the steel conduit to ensure the sealing effect of the assembly structure between the casing and the steel conduit, and can avoid structural bending and deformation of the pipe during the welding process.

[0037] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0038] It should be noted in advance that, in the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Furthermore, in the present invention, unless explicitly specified and limited otherwise, a first feature being “on” or “under” a second feature may include the first and second features being in direct contact with each other, or the first and second features not being in direct contact with each other but being in contact with each other through another feature therebetween.

[0040] In addition, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. The terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions 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 limiting the present invention.

[0041] Please refer to Figures 1 to 3 .

[0042] In a specific embodiment, the pipe welding support device provided by the present invention includes a bracket 10, a transmission frame 11 is arranged in the middle of the bracket 10, and a primary driving mechanism capable of driving the transmission frame 11 to reciprocate and rise and fall in the vertical direction is also arranged on the bracket 10.

[0043] The bottom of the transmission frame 11 is linked with two lifting members that can abut against the bottom of the steel pipe to lift the steel pipe. The two lifting members are arranged in a horizontal direction and have clearance. The bottom of the transmission frame 11 is also linked with a pipe pressing member 13 that can abut against the top of the casing to press the casing downward, and the pipe pressing member 13 is arranged between the two lifting members in the horizontal direction. The transmission frame 11 is also linked with a secondary driving mechanism that can drive the pipe pressing member 13 to reciprocate and rise and fall in the vertical direction.

[0044] During the specific operation and use of the equipment, when it is necessary to align and weld the two steel conduits at both ends of the horizontally arranged casing and the two steel conduits at both ends, first align and insert the two steel conduits into the two ends of the casing, and then use the primary drive mechanism to drive the transmission frame 11 to descend appropriately. At this time, the lifting member and the pipe pressing member 13 are synchronously moved down with the transmission frame 11 until the lifting member reaches the position where it can fit with the bottom of the assembled steel conduit, and then the lifting member is aligned and inserted into the gap between the bottom of the steel conduit and the ground, and the secondary drive mechanism is used to drive the pipe pressing member 13 to move down appropriately until the bottom of the pipe pressing member 13 is reliably against the top of the assembled casing. At this time, since the two steel conduits have been aligned and inserted into the two ends of the casing, respectively, the lifting member and the bottom of the steel conduit are lifted in combination with the downward pressure of the pipe pressing member 13 on the middle of the casing to form a reliable clamping and positioning of the casing and steel conduit pre-assembled structure, ensuring the coaxial adaptation state of the casing and the steel conduit.

[0045] Afterwards, the primary driving mechanism can be used to drive the transmission frame 11 to lift as a whole, thereby lifting it synchronously with the transmission frame 11 while ensuring the relative position of the pipe pressing member 13 and the lifting member. At this time, the steel pipe will be lifted appropriately under the lifting action of the lifting member until the lifting height of the steel pipe is sufficient to ensure that the space below the steel pipe can meet the welding operation requirements.

[0046] After the above operations are completed, the staff can perform full-circle welding and assembly on the casing and the steel conduits at both ends to ensure that there are no welding gaps or structural defects between the casing and the steel conduits, so as to avoid the cement slurry entering the steel conduits through the welding gaps during the subsequent concrete pouring and causing pipeline blockage; at the same time, due to the pressing and matching structure of the middle section of the pressing pipe 13 and the lifting and matching structure of the lifting parts at both ends, the casing and the steel conduit always maintain a constant axial position and maintain force balance during the welding operation, effectively avoiding the bending and deformation of the casing structure caused by the imbalance of the force of the pipe structure, greatly improving the operation accuracy during the welding process, and making the pipeline component structure more regular and reliable after the welding assembly is completed.

[0047] It should be noted that the alignment and insertion processing between the casing and the two steel conduits located at its two ends belongs to the pre-assembly operation method existing in the existing technology in the industry. The specific operation method is not improved or limited in this scheme. During actual operation, the staff can refer to the conventional operation method in the existing technology in this field for corresponding processing, which will not be repeated in this article.

[0048] Specifically, the transmission frame 11 includes an upper support plate 111 and a lower support plate 112 extending horizontally. The upper support plate 111 and the lower support plate 112 are arranged in a vertical direction from top to bottom and are gap-matched. The upper support plate 111 and the lower support plate 112 can be assembled in linkage through a plurality of vertically extending connecting frames 113 or connecting columns; the primary drive mechanism is linked to the middle of the upper support plate 111, and the secondary drive mechanism is linked to the middle of the lower support plate 112. Arranging and connecting the primary drive mechanism and the secondary drive mechanism to the upper support plate 111 and the lower support plate 112 respectively can effectively avoid the structural interference between the primary drive mechanism and the secondary drive mechanism, ensure the smooth operation of each drive mechanism, and reasonably utilize the assembly structure space of the transmission frame 11, so that the assembly connection between the transmission frame 11 and each drive mechanism and related linkage components is more reliable, and the corresponding linkage effect and action efficiency are also optimized accordingly.

[0049] More specifically, the secondary driving mechanism includes a secondary transmission rod 141, a secondary rotating disk 142 and a rolling bearing 143 whose axes extend in the vertical direction and are coaxially arranged; the secondary transmission rod 141 passes through the middle part of the lower support plate 112 in the vertical direction, the secondary rotating disk 142 is coaxially connected to the top end of the secondary transmission rod 141, the inner ring of the rolling bearing 143 is coaxially connected to the bottom end of the secondary transmission rod 141, and the outer ring of the rolling bearing 143 is linked to the middle part of the pressing pipe 13.

[0050] Generally, the middle part of the lower support plate 112 is provided with a secondary threaded hole that can be threadedly adapted to the secondary transmission rod 141. In actual operation, the secondary rotating disk 142 can be rotated to drive the secondary transmission rod 141 to rotate synchronously with a fixed axis, and then the threaded matching structure between the secondary transmission rod 141 and the secondary threaded hole is used to realize the axial reciprocating lifting and lowering action of the secondary transmission rod 141, thereby driving the rolling bearing 143 to rise and fall synchronously. On this basis, the coaxial relative sliding match between the inner and outer rings of the rolling bearing 143 is used to realize the lifting and lowering action of the pressing tube 13 along with the secondary transmission rod 141, and to avoid the pressing tube 13 from rotating along with the secondary transmission rod 141 with a fixed axis, thereby ensuring the constant circumferential position of the pressing tube 13, thereby ensuring the alignment accuracy and matching effect of the pressing tube 13 and the casing.

[0051] Specifically in practical applications, the pipe pressing member 13 can be a plate-like member or a block-like member with an arc-shaped concave bottom surface, so that the arc-shaped concave surface at the bottom can fully fit and abut against the outer wall of the sleeve, thereby further improving the structural adaptation effect and positioning accuracy of the pipe pressing member 13 and the sleeve, and making the clamping force distribution between the two more uniform.

[0052] Considering the convenience of component operation and the need for structural simplification in actual applications, it is preferable that the tube pressing member 13 be a tube pressing plate with a plate-like structure.

[0053] In addition, the primary driving mechanism includes a primary transmission rod 151, a primary rotating disk 152 and a locking assembly, the axis of which extends in the vertical direction and is coaxially arranged. The primary rotating disk 152 is coaxially linked to the top of the primary transmission rod 151, the locking assembly is aligned and linked to the bottom of the primary transmission rod 151, and the locking assembly is linked to the middle of the upper support plate 111. Similar to the working principle of the secondary driving mechanism mentioned above, the primary driving mechanism also relies on twisting the primary rotating disk 152 to drive the primary transmission rod 151 to rotate on a fixed axis, and then realizes the reciprocating lifting of the transmission frame 11 as a whole through the linkage connection between the primary transmission rod 151 and the upper support plate 111.

[0054] Correspondingly, the upper support plate 111 and the primary transmission rod 151 can achieve an adaptation effect of only axial lifting linkage without circumferential fixed-axis rotation linkage through bearings. Under the premise that there is a rolling bearing 143 in the secondary drive mechanism, they can also be directly linked and assembled to achieve axial and circumferential linkage between the upper support plate 111 and the primary transmission rod 151. The specific linkage structure will not affect the final adaptation effect of the pipe pressing part 13 and the lifting part on the casing and the steel conduit, nor will it cause any interference or adverse effect on the in-position welding assembly operation of the casing and the steel conduit.

[0055] Furthermore, the locking assembly includes a lower locking plate 153 arranged in close contact with the bottom surface of the upper support plate 111 and an upper locking plate 154 arranged in close contact with the top surface of the upper support plate 111. The lower part of the primary transmission rod 151 is a threaded section with external threads, and the threaded section passes through the middle of the upper support plate 111 in the vertical direction. The lower locking plate 153 and the upper locking plate 154 are coaxially sleeved and threadedly fastened to the outer periphery of the threaded section. When assembling the assembly, after the threaded section of the primary transmission rod 151 is aligned and inserted into the middle of the upper support plate 111, the upper locking plate 154 and the lower locking plate 153 are respectively threadedly adapted and fastened to the threaded section, so that the threaded section is reliably locked and fixed on the upper support plate 111, thereby realizing the reliable locking and linkage assembly of the primary transmission rod 151 and the upper support plate 111.

[0056] Of course, in practical applications, auxiliary connectors such as lock buckles or bayonet pins can also be used as the main locking components of the locking assembly to realize the separate assembly between the upper lock plate 154, the lower lock plate 153 and the upper support plate 111 and the reliable clamping and fixing of the upper support plate 111; bolts that penetrate the upper lock plate 154, the upper support plate 111 and the lower lock plate 153 along the axial direction can also be used to realize the linkage assembly between the primary drive mechanism and the transmission frame 11. In short, the staff can flexibly select and adjust the linkage assembly form between the primary drive mechanism and the transmission frame 11 according to the actual working conditions and the specific assembly conditions. In principle, any form that can meet the actual application needs of the pipe welding support device is acceptable.

[0057] In actual assembly application, the lifting member is a lifting hook 12 with both ends bent upward. The structure of this type of lifting hook 12 is simple and reliable, and can fully adapt to the space under the assembled steel conduit, making the disassembly and assembly arrangement between the lifting member and the steel conduit more convenient and efficient, and the corresponding supporting adaptation effect is better, and can make the lifting process of the lifting member on the steel conduit smoother and more efficient.

[0058] On this basis, a lifting chain 121 is connected between the lifting hook 12 and the transmission frame 11, and the top end of the lifting chain 121 is linked to the bottom of the transmission frame 11, and the bottom end of the lifting chain 121 is linked to at least one end of the lifting hook 12. The structure of the lifting chain 121 is simple and reliable, and can achieve flexible adaptation of the linkage connection structure between the lifting hook 12 and the transmission frame 11 by using the moderately flexible structure of the chain itself, while ensuring the strength of the linkage structure between the lifting hook 12 and the transmission frame 11, so that in the actual operation process, the lifting hook 12 can have a certain swing ability, thereby meeting the pipe lifting and supporting requirements under different working conditions.

[0059] Generally, the lifting chain 121 adopts a single-end assembly structure with one end connected to the lifting chain 121. In this structure, the other end of the lifting hook 12 serves as a free end. The matching gap between the free end and the lifting chain 121 can be utilized to enable the lifting hook 12 to be more smoothly installed on the steel conduit, thereby making the disassembly and assembly operations between the lifting hook 12 and the assembled steel conduit smoother and more efficient.

[0060] Of course, you can also choose to connect both ends of the lifting hook 12 to the bottom end of the lifting chain 121, so that the lifting hook 12 forms an enclosed set gap, so that the assembled steel pipe can be inserted into the lifting hook 12 and complete the corresponding lifting and supporting operations. Due to the use of a double-end assembly linkage assembly structure, the structural stress distribution of the lifting hook 12 when lifting the steel pipe is more balanced and the structural strength is higher, so that the lifting hook 12 can lift the steel pipe more smoothly and reliably.

[0061] On the other hand, two horizontally extending cross arms 104 are arranged on the upper part of the bracket 10, the two cross arms 104 are arranged in parallel and with clearance, a positioning seat 105 is overlapped between the two cross arms 104, and the primary driving mechanism is linked and arranged on the positioning seat 105. Generally, the bracket 10 is composed of four vertically extending pillars 101 arranged in an array in the horizontal direction as a structural foundation, and a horizontally extending cross beam 102 is arranged between two adjacent pillars 101 to ensure reliable connection and assembly position locking between the pillars 101. The cross beams 102 can be arranged symmetrically in parallel in pairs to form a circumferential quadrilateral enclosure structure in the horizontal direction, and a base 103 can also be arranged at the bottom of the pillars 101 to relieve the overall weighing pressure and structural impact of the bracket 10.

[0062] Correspondingly, two horizontally extended cross arms 104 are connected between any two parallel arranged cross beams 102, the two cross arms 104 are matched with each other in a clearance, and the positioning seat 105 is overlapped on the two cross arms 104 in an aligned manner, and the positioning seat 105 is used as the assembly basis and supporting structure of the primary drive mechanism to ensure the assembly strength and structural stability of the primary drive mechanism.

[0063] On this basis, a slide rail 106 extending in the horizontal direction is provided on the cross arm 104, and the positioning seat 105 is slidably provided on the slide rail 106. When the equipment is in operation, the positioning seat 105 can be controlled to move horizontally appropriately along the slide rail 106 to drive the first-level driving mechanism to move horizontally synchronously, thereby driving the transmission frame 11 to move synchronously to the target position, so as to move the pipe pressing member 13 and the lifting member to the station where the pipe processing is required, so that the pipe welding support device can not only realize the vertical lifting station adjustment of the pipe pressing member 13 and the lifting member, but also realize the horizontal translation station adjustment, thereby greatly improving the working condition adaptability and operation convenience of the pipe welding support device.

[0064] It is not difficult to understand that the operation and driving of the positioning seat 105 and each rotating disk involved in this solution can be realized by manual operation of the staff, or by driving of a motor or other power equipment. In practical applications, the driving mode of each action component can be flexibly selected and adjusted according to specific working conditions and actual operation requirements. In principle, any method can be used as long as it can meet the practical application requirements of the pipe welding support device.

[0065] In summary, it can be seen that during the operation and use of the pipe welding support device provided in the present invention, when it is necessary to align and weld the horizontally arranged casing and the two steel conduits at both ends thereof, the two steel conduits are first aligned and inserted into the two ends of the casing respectively, and then the primary driving mechanism is used to drive the transmission frame to descend moderately. At this time, the lifting member and the pipe pressing member are synchronously moved downward with the transmission frame until the lifting member reaches a position that can be adapted to the bottom of the assembled steel conduit, and then the lifting member is aligned and inserted into the gap between the bottom of the steel conduit and the ground, and the secondary driving mechanism is used to drive the pipe pressing member to move moderately downward until the bottom of the pipe pressing member reliably abuts against the top of the assembled casing. At this time, since the two steel conduits have been aligned and inserted into the two ends of the casing respectively, the lifting member and the bottom support of the steel conduit are combined with the downward pressure of the middle part of the casing by the pipe pressing member to form a reliable clamping and positioning of the casing and steel conduit pre-assembled structure, thereby ensuring the coaxial adaptation state of the casing and the steel conduit. Afterwards, the primary driving mechanism can be used to drive the transmission frame to lift as a whole, thereby ensuring the relative position of the pipe pressing fitting and the lifting fitting, and lifting synchronously with the transmission frame. At this time, the steel pipe will be lifted appropriately under the lifting action of the lifting fitting, until the lifting height of the steel pipe is sufficient to ensure that the space below the steel pipe can meet the welding operation requirements. Afterwards, the staff can perform full-circle welding assembly on the casing and each steel pipe at both ends to ensure that there are no welding gaps or structural defects between the casing and the steel pipe, and to avoid cement slurry entering the steel pipe through the welding gap during subsequent concrete pouring and causing pipeline blockage; at the same time, due to the downward pressure of the middle section of the pipe pressing fitting and the lifting and matching structure of the lifting fitting at both ends, the casing and the steel pipe always maintain a constant axial position and maintain force balance during the welding operation, effectively avoiding the bending and deformation of the casing structure caused by the imbalance of the pipe structure, greatly improving the operation accuracy during the welding process, and making the pipeline assembly structure more regular and reliable after the welding assembly is completed.

[0066] The above is a detailed introduction to the pipe welding support device provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A pipe welding support device, characterized in that: The invention comprises a bracket, a transmission frame is arranged in the middle of the bracket, and a primary driving mechanism capable of driving the transmission frame to move up and down in a vertical direction is also arranged on the bracket; The bottom of the transmission frame is linked with two lifting pieces that can abut against the bottom of the steel pipe to lift the steel pipe, and the two lifting pieces are arranged in a horizontal direction and have clearance fit. The bottom of the transmission frame is also linked with a pipe pressing piece that can abut against the top of the casing to press the casing downward, and the pipe pressing piece is arranged between the two lifting pieces in the horizontal direction; The transmission frame is also linked with a secondary driving mechanism capable of driving the pipe pressing member to reciprocate and lift in a vertical direction.

2. The pipe welding support device according to claim 1, characterized in that: The transmission frame comprises an upper support plate and a lower support plate extending horizontally, wherein the upper support plate and the lower support plate are arranged in a vertical direction from top to bottom and are clearance-matched; The primary driving mechanism is linked to the middle part of the upper supporting plate, and the secondary driving mechanism is linked to the middle part of the lower supporting plate.

3. The pipe welding support device according to claim 2, characterized in that: The secondary driving mechanism comprises a secondary transmission rod, a secondary rotating disk and a rolling bearing, the axes of which extend in the vertical direction and are coaxially arranged; The secondary transmission rod passes through the middle part of the lower support plate in the vertical direction, the secondary rotating disk is coaxially connected to the top end of the secondary transmission rod, the inner ring of the rolling bearing is coaxially connected to the bottom end of the secondary transmission rod, and the outer ring of the rolling bearing is connected to the middle part of the pressure pipe fitting.

4. The pipe welding support device according to claim 3, characterized in that: The pipe pressing member is a horizontally extending pipe pressing plate.

5. The pipe welding support device according to claim 2, characterized in that: The primary driving mechanism comprises a primary transmission rod, a primary rotating disk and a locking assembly, the axes of which extend in the vertical direction and are coaxially arranged; The primary rotating disk is coaxially linked to the top end of the primary transmission rod, the locking assembly is aligned and linked to the bottom end of the primary transmission rod, and the locking assembly is linked to the middle part of the upper support plate.

6. The pipe welding support device according to claim 5, characterized in that: The locking assembly includes a lower locking plate arranged in close contact with the bottom surface of the upper support plate and an upper locking plate arranged in close contact with the top surface of the upper support plate. The lower part of the primary transmission rod is a threaded section with an external thread, and the threaded section passes through the middle part of the upper support plate in a vertical direction. The lower locking plate and the upper locking plate are coaxially sleeved and threadedly fastened to the outer periphery of the threaded section.

7. The pipe welding support device according to claim 1, characterized in that: The lifting member is a lifting hook with two ends bent upward.

8. The pipe welding support device according to claim 7, characterized in that: A lifting chain is connected between the lifting hook and the transmission frame, the top end of the lifting chain is linked to the bottom of the transmission frame, and the bottom end of the lifting chain is linked to at least one end of the lifting hook.

9. The pipe welding support device according to claim 1, characterized in that: The upper part of the bracket is provided with two cross arms extending in the horizontal direction, the two cross arms are arranged in parallel and fit with a gap, a positioning seat is overlapped between the two cross arms, and the primary driving mechanism is linked and arranged on the positioning seat.

10. The pipe welding support device according to claim 9, characterized in that: The cross arm is provided with a slide rail extending in a horizontal direction, and the positioning seat is slidably arranged on the slide rail.

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