Welding construction device for foldable pre-embedded sleeve set and using method

Abstract

The invention provides a welding construction device for an embedded sleeve set and a using method. The welding construction device comprises a construction platform, and a horizontal guide rail is arranged on the construction platform; the two groups of positioning frames are oppositely arranged and can synchronously move along opposite directions so as to be close to or far away from each other; the material placing frame is located on the construction platform and can move in the direction perpendicular to the horizontal guide rail; wherein the extending direction of the horizontal guide rail is perpendicular to the relative movement direction of the two sets of positioning frames, and the positioning frames are connected with the horizontal guide rail in a sliding mode and can slide in the extending direction of the horizontal guide rail. By means of the two symmetrically-arranged first transmission gear sets, synchronous opposite movement of the two positioning frames can be achieved, synchronous movement of the two positioning frames along the horizontal guide rails is achieved through arrangement of the sliding seats, and accurate and rapid regulation and control of collinear centers of the multiple embedded sleeves and the distance between the embedded sleeves are achieved through cooperation of the positioning frames and the sliding seats. And the construction quality and efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding construction of a pre-buried casing group, and in particular to a welding construction device of a foldable pre-buried casing group and a use method thereof. Background Art

[0002] In the field of construction engineering, the installation quality and efficiency of embedded casings play a vital role in the smooth progress and long-term stable operation of the entire project. In the installation of multiple embedded casings, it is necessary to ensure their horizontality, verticality and casing spacing. The usual method is to first set multiple casings side by side, adjust the casing spacing, and then use the connecting steel plate to weld each casing to a long angle steel. During construction and installation, the long angle steel or a small number of casings can be positioned by laying out the line.

[0003] However, due to limitations in experience and equipment, the accuracy of manual welding is currently low, especially when the diameters of the casings in the embedded casing group are different, the positioning welding accuracy and efficiency are more difficult to control, seriously affecting the quality and schedule of the project. Summary of the invention

[0004] The object of the present invention is to provide a welding construction device and a use method of a foldable embedded casing group to solve the problems in the above background.

[0005] The technical solution adopted by the present invention is: a welding construction device for a pre-buried casing group, comprising:

[0006] A construction platform, wherein a horizontal guide rail is provided on the construction platform;

[0007] Two sets of positioning frames arranged opposite to each other can move synchronously in opposite directions to move closer to or farther from each other;

[0008] A material rack, which is located on the construction platform and can move in a direction perpendicular to the horizontal guide rail;

[0009] The extension direction of the horizontal guide rail is perpendicular to the direction of relative movement of the two groups of positioning frames, and the positioning frame is slidably connected to the horizontal guide rail and can slide along the extension direction of the horizontal guide rail.

[0010] Furthermore, the positioning frame includes a first positioning beam, and the opposite ends of the two groups of the first positioning beams in the two groups of the positioning frames are respectively configured with arc-shaped positioning grooves; the bottom surfaces of the two groups of the first positioning beams are respectively configured with transmission racks, and the two groups of the transmission racks are respectively meshed and connected to the first transmission gear groups, the two groups of the first transmission gear groups are symmetrically configured, and are connected to the driving handle through the second transmission gear group.

[0011] Further, the first transmission gear set includes a plurality of first transmission gears connected by a first synchronous belt;

[0012] At least two of the first transmission gears in the welding construction device are meshed and connected, and are respectively connected to different first positioning beams;

[0013] The second transmission gear set includes a plurality of second transmission gears connected by a second synchronous belt, and at least one of the second transmission gears is coaxially fixedly connected to the first transmission gear.

[0014] Furthermore, the welding construction device includes a slide seat, which is slidably connected to the horizontal guide rail and / or the construction platform, and the first transmission gear group and the second transmission gear group are arranged on the slide seat.

[0015] Furthermore, the sliding seat includes a first C-shaped portion and a second C-shaped portion that are relatively arranged, and a straight portion for connecting the first C-shaped portion and the second C-shaped portion, and the two groups of positioning frames are respectively constructed on the first C-shaped portion and the second C-shaped portion, and a group of relative side ends of the construction platform are respectively inserted into the openings of the first C-shaped portion and the second C-shaped portion.

[0016] Furthermore, the first C-shaped portion and the second C-shaped portion have the same configuration, and the first C-shaped portion is provided with a limiting block that is slidably abutted against a side edge of the first positioning beam.

[0017] Furthermore, the material rack includes two groups of second positioning beams, which are respectively located on both sides of the length direction of the horizontal guide rail. The two ends of the second positioning beams in the length direction are respectively provided with material support plates and distance-adjusting push rods, and the distance-adjusting push rods are used to connect the two groups of the second positioning beams.

[0018] Furthermore, a mounting block is arranged on the construction platform, a slide groove is arranged on the mounting block, an extension direction of the slide groove is perpendicular to the horizontal guide rail, and the second positioning beam is slidably arranged in the slide groove.

[0019] Furthermore, scale lines are provided on the side walls of the horizontal guide rail to indicate the sliding distance of the positioning frame along the horizontal guide rail.

[0020] Furthermore, the bottom of the construction platform is provided with foldable legs, and the foldable legs include columns rotatably connected to the construction platform, and X-shaped struts for connecting adjacent columns.

[0021] The technical solution of the present invention also includes: a construction method of the welding construction device of the above-mentioned embedded casing group, which includes the steps of:

[0022] (1) placing the embedded casing on the construction platform, and driving the two sets of positioning frames to move toward each other until the two sets of positioning frames respectively abut against opposite sides of the embedded casing;

[0023] (2) placing the long channel steel on a material rack, driving the material rack to move toward the embedded sleeve until the distance between the long channel steel and the embedded sleeve is the same as the length of the connecting steel plate, and welding the two ends of the connecting steel plate to the long channel steel and the embedded sleeve respectively;

[0024] (3) Determine the center position of the newly embedded sleeve according to the pipe wall spacing and radius of adjacent embedded sleeves, and move the positioning frame along the horizontal guide rail to the center position; repeat steps (1) and (2) to weld the newly embedded sleeve.

[0025] The beneficial effects of the present invention are as follows: through the two symmetrically arranged first transmission gear groups, the two groups of positioning frames can be moved toward each other synchronously, and through the configuration of the slide seat, the two groups of positioning frames can be moved synchronously along the horizontal guide rail. Through the coordination of the two, the center collinearity of multiple embedded sleeves and the spacing between each embedded sleeve can be accurately and quickly controlled, thereby improving the construction quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is an overall structural diagram of an embodiment of the present invention;

[0027] Figure 2 is a top view of a pre-buried casing group welded by an embodiment of the present invention;

[0028] Figure 3 is a three-dimensional diagram of the structure above the construction platform in an embodiment of the present invention;

[0029] Figure 4 is a first-view connection diagram of the slide and the positioning frame in an embodiment of the present invention;

[0030] Figure 5 It is a second viewing angle connection diagram of the slide seat and the positioning frame in the embodiment of the present invention.

[0031] In the figure:

[0032] 1. Construction platform;

[0033] 2. Horizontal guide rail;

[0034] 3. Positioning frame; 3.1. First positioning beam; 3.2. Arc-shaped positioning groove;

[0035] 4. Material rack; 4.1. Second positioning beam; 4.2. Material support plate; 4.3. Adjustable distance push rod;

[0036] 5. Transmission rack;

[0037] 6. First transmission gear set; 6.1. First synchronous belt; 6.2. First transmission gear;

[0038] 7. Second transmission gear set; 7.1. Second synchronous belt; 7.2. Second transmission gear;

[0039] 8. Driving handle;

[0040] 9. Sliding seat; 9.1. First C-shaped portion; 9.2. Second C-shaped portion; 9.3. Straight portion; 9.4. Limiting block;

[0041] 10. Mounting block; 10.1. Slideway;

[0042] 11. Foldable legs; 11.1. Uprights; 11.1. X-shaped struts;

[0043] 12. Embedded casing group; 12.1. Long angle steel; 12.2. Connecting steel plate; 12.3. Embedded casing. DETAILED DESCRIPTION

[0044] The technical solutions of the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0045] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set" and "connect" 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 directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0046] Reference Figure 1-5 The present embodiment provides a welding construction device for an embedded casing group 12, which includes: a construction platform 1, a horizontal guide rail 2, a positioning frame 3 and a material rack 4. The horizontal guide rail 2, the positioning frame 3 and the material rack 4 are all constructed on the construction platform 1. The horizontal guide rail 2 and the positioning frame 3 are relatively arranged in two groups. The two groups of positioning frames 3 can move synchronously in relative directions to approach or move away from each other. The extension direction of the horizontal guide rail 2 is perpendicular to the direction in which the two groups of positioning frames 3 move relative to each other. The two groups of positioning frames 3 are slidably connected to different horizontal guide rails 2 respectively, and can slide along the extension direction of the horizontal guide rail 2; the material rack 4 is movably arranged on the construction platform 1 and can move in a direction perpendicular to the horizontal guide rail 2.

[0047] Before welding the embedded casing group 12, the long angle steel 12.1 is placed on the material rack 4, and an embedded casing 12.3 is placed on the construction platform 1. The two sets of positioning racks 3 are moved toward each other to abut against the outer wall of the embedded casing 12.3. Then the material rack 4 is moved to make the distance between the long angle steel 12.1 and the embedded casing 12.3 equal to the length of the connecting steel plate 12.2 to be welded. The two ends of the connecting steel plate 12.2 are respectively connected to the long angle steel 12.1 and the embedded casing 12.3. .3; then, according to the spacing between adjacent sleeves, slide the positioning frame 3 along the horizontal guide rail 2 so that the center of the positioning frame 3 corresponds to the center of the next embedded sleeve 12.3, repeat the positioning welding procedure of the previous embedded sleeve 12.3, and weld and fix the next embedded sleeve 12.3, the next connecting steel plate 12.2 and the long angle steel 12.1; then repeat the previous steps in sequence to complete the welding process of multiple embedded sleeves 12.3 and the long angle steel 12.1.

[0048] Since the two groups of positioning frames 3 can be synchronously moved in relative directions to approach or move away from each other, the centers of the multiple embedded sleeves 12.3 pressed by the two groups of positioning frames 3 are all at the midpoint of the line connecting the two groups of positioning frames 3. Regardless of whether the diameters of the embedded sleeves 12.3 are the same, the centers of the multiple embedded sleeves 12.3 can be quickly adjusted to be collinear, thereby improving the welding efficiency and accuracy of the embedded sleeve group 12.

[0049] Reference Figure 3 The positioning frame 3 includes a first positioning beam 3.1. The opposite ends of the two groups of first positioning beams 3.1 in the two groups of positioning frames 3 are respectively configured with arc-shaped positioning grooves 3.2 to fit the outer wall shape of the sleeve and more accurately press and align; the bottom surfaces of the two groups of first positioning beams 3.1 are respectively configured with transmission racks 5, and the two groups of transmission racks 5 are respectively meshed and connected to the first transmission gear sets 6. The two groups of first transmission gear sets 6 are symmetrically configured and connected to the driving handle 8 through the second transmission gear set 7.

[0050] By rotating the driving handle 8, the second transmission gear set 7 can drive the two sets of first transmission gear sets 6 to operate synchronously. Since the two sets of first transmission gear sets 6 are symmetrically constructed, the two sets of first positioning beams 3.1 can be driven by the transmission rack 5 to move synchronously and equidistantly, so that the two sets of first positioning beams 3.1 are always symmetrical about a fixed straight line (for example, the center line of the construction platform 1), and the embedded sleeve 12.3 pressed against them is also always symmetrical about the fixed straight line. Finally, no matter whether the diameters of multiple embedded sleeves 12.3 in the embedded sleeve group 12 are the same, the device can always quickly and accurately locate the center of the embedded sleeve 12.3.

[0051] In order to ensure that the two groups of first positioning beams 3.1 are always symmetrical and improve the construction accuracy, it should be ensured that the two groups of first positioning beams 3.1 slide along the horizontal guide rail 2 synchronously and equidistantly. Therefore, in this embodiment, a slide seat 9 is constructed to slide and connect the horizontal guide rail 2 and the construction platform 1, which specifically includes: a first C-shaped portion 9.1 and a second C-shaped portion 9.2 arranged opposite to each other, and a straight portion 9.3 for connecting the first C-shaped portion 9.1 and the second C-shaped portion 9.2. The two groups of first positioning beams 3.1 are respectively constructed on the first C-shaped portion 9.1 and the second C-shaped portion 9.2, and a group of opposite side ends of the construction platform 1 are respectively inserted into the openings of the first C-shaped portion 9.1 and the second C-shaped portion 9.2. The straight portion 9.3 realizes the synchronous movement of the first C-shaped portion 9.1 and the second C-shaped portion 9.2, thereby realizing the synchronous movement of the two groups of first positioning beams 3.1 along the horizontal guide rail 2.

[0052] The horizontal guide rail 2 and the first C-shaped portion 9.1 (or the second C-shaped portion 9.2) can be slidably connected in a "concave" or "convex" fitting manner, or the horizontal guide rail 2 can be completely penetrated through the first C-shaped portion 9.1 (or the second C-shaped portion 9.2) to be slidably connected, so that the horizontal guide rail 2 can smoothly guide the first C-shaped portion 9.1 and the second C-shaped portion 9.2. At the same time, since a group of opposite side ends of the construction platform 1 are respectively inserted into the openings of the first C-shaped portion 9.1 and the second C-shaped portion 9.2, if the inner side surfaces of the first C-shaped portion 9.1 and the second C-shaped portion 9.2 are both slidably connected to the surface of the construction platform 1, the smoothness of sliding can also be improved. Of course, the straight portion 9.3 is slidably connected to the surface of the construction platform 1, which can also improve the smoothness of sliding. In order to prevent the straight portion 9.3 from affecting the positioning and welding of the embedded sleeve 12.3, the straight portion 9.3 can be constructed on the bottom surface of the construction platform 1.

[0053] Each first transmission gear set 6 in this embodiment includes a plurality of first transmission gears 6.2 connected by a first synchronous belt 6.1, and the second transmission gear set 7 includes a plurality of second transmission gears 7.2 connected by a second synchronous belt 7.1; at least two first transmission gears 6.2 in this welding construction device are meshed and connected, and are respectively connected to different first positioning beams 3.1, that is, the two first transmission gears 6.2 are respectively located in different first transmission gear sets 6, and at least one second transmission gear 7.2 is coaxially fixedly connected to the first transmission gear 6.2. Figure 4-5In order to ensure transmission efficiency, save force, and ensure transmission stability and synchronization, in this embodiment, the two mutually meshing first transmission gears 6.2 are symmetrically arranged in the middle of the bottom surface of the construction platform 1, and the second transmission gear 7.2 in the second transmission gear set 7 near the middle of the construction platform 1 is coaxially fixedly connected to one of the first transmission gears 6.2, and the second transmission gear 7.2 near the edge of the construction platform 1 in the second transmission gear set 7 is connected to the driving handle 8. By rotating the driving handle 8, the second transmission gear 7.2 near the edge of the construction platform 1 rotates, and the second transmission gear 7.2 near the middle of the construction platform 1 is driven to rotate by the second synchronous belt 7.1, thereby driving the first transmission gear 6.2 coaxially fixedly connected thereto to rotate. On the one hand, the first transmission gear 6.2 drives the first transmission gear set 6 in which it is located to operate, and on the other hand, drives another group of first transmission gear sets 6 to operate through the first transmission gear 6.2 meshing therewith.

[0054] By means of two symmetrically arranged first transmission gear sets 6, the two sets of positioning frames 3 can be synchronously moved toward each other. By means of the arrangement of the slide seat 9, the two sets of positioning frames 3 can be synchronously moved along the horizontal guide rail 2. By means of the coordination of the two, the center collinearity of multiple embedded sleeves 12.3 and the spacing between the embedded sleeves 12.3 can be precisely controlled, thereby improving the construction quality.

[0055] In this embodiment, the friction coefficient or interaction force between the horizontal guide rail 2 (or the construction platform 1) and the slide 9 can be pre-controlled, and then the friction between the horizontal guide rail 2 (or the construction platform 1) and the slide 9 can be pre-controlled, so that when the worker does not apply a large external force to the two, the two cannot slide relative to each other, thereby improving the stability of the slide 9 and thus improving the construction accuracy; a scale line can be set on the side wall of the horizontal guide rail 2 to indicate the distance that the positioning frame 3 slides along the horizontal guide rail 2. During construction, the distance that the positioning frame 3 should move on the horizontal guide rail 2 is calculated according to the pipe wall spacing of the adjacent embedded sleeves 12.3 and the radius of the two embedded sleeves 12.3, and the positioning frame 3 is accurately moved according to the indication of the scale line. Of course, the slide 9 can also be driven to move and ensure the stability of the slide 9 by a cylinder (not shown in the drawings). The specific implementation method can be selected by those skilled in the art, and no more specific limitation is made here.

[0056] In this embodiment, the first C-shaped portion 9.1 and the second C-shaped portion 9.2 have the same configuration. In order to ensure the smooth movement of the two groups of positioning frames 3 toward or away from each other, a limit block 9.4 is configured on the first C-shaped portion 9.1 (or the second C-shaped portion 9.2) and is slidably abutted against the side of the first positioning beam 3.1. The limit block 9.4 limits the width direction of the first positioning beam 3.1 so that it can move smoothly on the first C-shaped portion 9.1 (or the second C-shaped portion 9.2) in a direction perpendicular to the horizontal guide rail 2.

[0057] The material rack 4 can be symmetrically arranged in two groups (such as the attached Figure 3 As shown in the figure, each set of material racks 4 includes two sets of second positioning beams 4.1, which are respectively located on both sides of the length direction of the horizontal guide rail 2. Material racks 4.2 and distance adjustment push rods 4.3 are respectively arranged at the two ends of the length direction of the second positioning beams 4.1. The two material racks 4.2 on the two sets of positioning beams are respectively used to carry the two ends of the long angle steel 12.1. The distance adjustment push rods 4.3 are used to connect the two sets of second positioning beams 4.1 and provide workers with a grip for pushing the second positioning beams 4.1. A mounting block 10 is arranged on the construction platform 1. A slide groove 10.1 is arranged on the mounting block 10. The extension direction of the slide groove 10.1 is perpendicular to the horizontal guide rail 2. The second positioning beam 4.1 is slidably arranged in the slide groove 10.1. In order to avoid mutual obstruction between the long angle steel 12.1 and the positioning rack 3, the material rack 4 and the positioning rack 3 can be arranged with a certain height difference. In order to facilitate welding operation, it is preferred that the material rack 4 is higher than the positioning rack 3 (which can be adjusted by the height size of the mounting block 10).

[0058] During construction, the distance between the second positioning beam 4.1 and the embedded sleeve 12.3 can be adjusted by pushing the distance adjustment push rod 4.3 along the extension direction of the slide 10.1. The side wall of the slide 10.1 limits the lateral direction of the second positioning beam 4.1 to improve its sliding stability. Similarly, the friction coefficient or interaction force between the second positioning beam 4.1 and the slide 10.1 can be pre-controlled, and then the friction force between the second positioning beam 4.1 and the slide 10.1 can be pre-controlled, so that when the worker does not apply a large external force to the two, the two cannot slide relative to each other, thereby improving the stability of the second positioning beam 4.1 and thus improving the construction accuracy.

[0059] In order to adapt to ergonomics, avoid long-term bending over for construction workers, and take into account the convenience of storing and transferring the construction device, in this embodiment, a foldable leg 11 is configured at the bottom of the construction platform 1. The foldable leg 11 includes four groups of columns 11.1 that are rotatably connected to the construction platform 1, and X-shaped struts 11.2 for connecting adjacent columns 11.1. Usually, when the four groups of columns 11.1 are connected to each other by X-shaped struts 11.2, the X-shaped struts 11.2 and the columns 11.1 can be configured to be detachably connected to facilitate the folding of the columns 11.1; if only two groups of X-shaped struts 11.2 are arranged opposite to each other, and each group of X-shaped struts 11.2 is only connected to two groups of columns 11.1 (such as the attached Figure 1 As shown), a limiting structure (such as a spring limiting member, a detachable positioning pin rod, etc., which is the prior art and will not be described here) can be set at the position where the top of the column 11.1 is connected to the construction platform 1 to prevent the column 11.1 from shaking after it is unfolded and improve stability.

[0060] Compared with the prior art, the beneficial effects of the present invention include: through the two symmetrically arranged groups of first transmission gear sets 6, the two groups of positioning frames 3 can be moved toward each other synchronously, and through the configuration of the slide seat 9, the two groups of positioning frames 3 can be moved synchronously along the horizontal guide rail 2. Through the coordination of the two, the center collinearity of multiple embedded sleeves 12.3 and the precise and rapid regulation of the spacing between each embedded sleeve 12.3 can be achieved, thereby improving the construction quality and efficiency.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0062] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A welding construction device for a pre-buried casing group, characterized in that: include: A construction platform, wherein a horizontal guide rail is provided on the construction platform; Two sets of positioning frames arranged opposite to each other can move synchronously in opposite directions to move closer to or farther from each other; A material rack, which is located on the construction platform and can move in a direction perpendicular to the horizontal guide rail; The extension direction of the horizontal guide rail is perpendicular to the direction of relative movement of the two groups of positioning frames, and the positioning frame is slidably connected to the horizontal guide rail and can slide along the extension direction of the horizontal guide rail.

2. The welding construction device of the embedded casing group according to claim 1 is characterized in that: The positioning frame includes a first positioning beam, and the opposite ends of the two groups of the first positioning beams in the two groups of the positioning frames are respectively configured with arc-shaped positioning grooves; the bottom surfaces of the two groups of the first positioning beams are respectively configured with transmission racks, and the two groups of the transmission racks are respectively meshed and connected to the first transmission gear groups, the two groups of the first transmission gear groups are symmetrically configured, and are connected to the driving handle through the second transmission gear group.

3. The welding construction device of the embedded casing group according to claim 2 is characterized in that: The first transmission gear set includes a plurality of first transmission gears connected by a first synchronous belt; At least two of the first transmission gears in the welding construction device are meshed and connected, and are respectively connected to different first positioning beams; The second transmission gear set includes a plurality of second transmission gears connected by a second synchronous belt, and at least one of the second transmission gears is coaxially fixedly connected to the first transmission gear.

4. The welding construction device of the embedded casing group according to claim 2 or 3, characterized in that: The welding construction device comprises a slide seat, the slide seat is slidably connected to the horizontal guide rail and / or the construction platform, and the first transmission gear set and the second transmission gear set are arranged on the slide seat.

5. The welding construction device for the embedded casing group according to claim 4 is characterized in that: The sliding seat includes a first C-shaped portion and a second C-shaped portion that are arranged opposite to each other, and a straight portion for connecting the first C-shaped portion and the second C-shaped portion. The two groups of positioning frames are respectively constructed on the first C-shaped portion and the second C-shaped portion, and a group of relative side ends of the construction platform are respectively inserted into the openings of the first C-shaped portion and the second C-shaped portion.

6. The welding construction device for the embedded casing group according to claim 5, characterized in that: The first C-shaped portion has the same configuration as the second C-shaped portion, and the first C-shaped portion is provided with a member for slidingly abutting against a side edge of the first positioning beam.

7. The welding construction device of the embedded casing group according to any one of claims 1-3, 5-6, characterized in that: The material rack includes two groups of second positioning beams, which are respectively located on both sides of the length direction of the horizontal guide rail. The two ends of the second positioning beams in the length direction are respectively provided with material support plates and distance-adjusting push rods, and the distance-adjusting push rods are used to connect the two groups of the second positioning beams.

8. The welding construction device of the embedded casing group according to claim 7, characterized in that: The construction platform is provided with a mounting block, the mounting block is provided with a slide groove, the extension direction of the slide groove is perpendicular to the horizontal guide rail, and the second positioning beam is slidably disposed in the slide groove.

9. The welding construction device of the embedded casing group according to any one of claims 1-3, 5-6, and 8, characterized in that: The side wall of the horizontal guide rail is provided with scale lines for indicating the distance that the positioning frame slides along the horizontal guide rail; The bottom of the construction platform is provided with foldable legs, and the foldable legs include columns rotatably connected to the construction platform and X-shaped struts used to connect adjacent columns.

10. The construction method of the welding construction device of the embedded casing group according to any one of claims 1 to 9, characterized in that: Includes steps: (1) placing the embedded casing on the construction platform, and driving the two sets of positioning frames to move toward each other until the two sets of positioning frames respectively abut against opposite sides of the embedded casing; (2) placing the long channel steel on a material rack, driving the material rack to move toward the embedded sleeve until the distance between the long channel steel and the embedded sleeve is the same as the length of the connecting steel plate, and welding the two ends of the connecting steel plate to the long channel steel and the embedded sleeve respectively; (3) Determine the center position of the newly embedded sleeve according to the pipe wall spacing and radius of adjacent embedded sleeves, and move the positioning frame along the horizontal guide rail to the center position; repeat steps (1) and (2) to weld the newly embedded sleeve.

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