Pipe fitting clamping device for building construction

Abstract

The invention discloses a pipe fitting clamping device for building construction, and relates to the technical field of building construction, the pipe fitting clamping device comprises a mounting plate, an arc-shaped plate and a side plate, the arc-shaped plate is rotatably mounted at the front end of the mounting plate, and an arc-shaped groove is formed in the front end of the arc-shaped plate; a pipe fitting contact assembly used for being attached to an equal-diameter pipe fitting or an unequal-diameter pipe fitting is arranged on the front side of the arc-shaped plate, a gear ring is integrally connected to the outer end of the arc-shaped plate, the pipe fitting contact assembly is positioned through a positioning assembly, a motor is fixed to the rear side face of the mounting plate, and a fluted disc is fixed to the output end of the motor. A T-shaped rod is fixed to the left side face of the mounting plate and penetrates through the interior of the side plate. According to the pipe fitting clamping device for building construction, the rubber plate can be attached to equal-diameter pipe fittings or unequal-diameter pipe fittings, so that straight pipe fittings and conical pipe fittings of different sizes can be fixed, after the pipe fittings are fixed, the pipe fittings are convenient to rotate, and the pipe fitting limiting angle is flexible.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of building construction, and particularly relates to a pipe clamping device for building construction. BACKGROUND

[0002] In building construction, clamping pipes are usually needed when installing or processing pipes. The pipes are fixed by clamping devices during installation or processing, so as to ensure installation accuracy and processing accuracy. A building construction energy-saving and environment-friendly pipe machining equipment is disclosed in Chinese Patent No. CN213004946U. The pipe can be quickly jacked and fixed. The pipe can be extruded and fixed within a certain range according to the processing requirements. The overall production cost is low, and the operation is convenient. Chinese Patent No. CN222768213U discloses a pipe clamping mechanism. The clamping mechanism can drive a double-sided tooth ring to rotate through a motor-driven bevel gear II, so as to drive a plurality of bevel gears I to drive a threaded cylinder to rotate, thereby driving a plurality of threaded cylinders to drive the clamping plates to move, so that the pipe clamping mechanism can be adapted to pipes of different specifications and diameters for clamping and fixing, has a wider application range and higher practicality. The clamping seat and the remaining parts connected thereto can be conveniently disassembled as a whole, so that the disassembly, maintenance, repair or replacement thereof is facilitated. Chinese Patent No. CN221583315U discloses a pipe clamping device. The pipe clamping device body is provided with a base. A limiting groove is arranged in the base. A limiting rod is arranged in the limiting groove. A screw sleeve is arranged at the top end of the limiting rod. An adjusting assembly is arranged in the screw sleeve. A double-way screw rod is arranged in the center of the adjusting assembly. A support is arranged on the adjusting assembly. A hand wheel is arranged at one end of the adjusting assembly. An adjusting rod is arranged above the screw sleeve. A clamping block is arranged on the inner side wall of the upper half of the adjusting rod. A placing plate is arranged above the bracket in the center of the upper surface of the base. A protective pad is arranged on the upper surface of the placing plate. The pipe clamping device can flexibly adjust the distance between the two groups of clamping blocks according to the size of the pipe, thereby expanding the application range of the device and greatly enhancing the practicality of the device. The pipe can be placed on the upper surface of the placing plate through the placing assembly, so that the pipe can be clamped subsequently. In combination with the existing scheme and actual production and processing, during building construction, equal-diameter pipes or unequal-diameter pipes need to be used. For example, a tapered wall bushing is an unequal-diameter pipe, and a general water pipe is an equal-diameter pipe. However, the existing pipe clamping device for building construction is inconvenient for fixing different pipes. After fixing the pipe, it is inconvenient to rotate the pipe. Therefore, the pipe clamping device for building construction is proposed to solve the above problems. SUMMARY

[0003] The present application aims to provide a pipe clamping device for construction, to solve the problems of the prior art pipe clamping device for construction, which is inconvenient to fix different pipes and inconvenient to rotate the pipe after fixing the pipe.

[0004] To achieve the above object, the present application provides the following technical solution: a pipe clamping device for construction, comprising a mounting plate, an arc-shaped plate and a side plate: The front end of the mounting plate is rotatably mounted with an arc-shaped plate, the front end of the arc-shaped plate is provided with an arc-shaped slot, the front side of the arc-shaped plate is provided with a pipe contact assembly for fitting equal-diameter pipes or unequal-diameter pipes, the outer end of the arc-shaped plate is integrally connected with a gear ring, and the pipe contact assembly is positioned and installed on the arc-shaped plate through a positioning assembly. The rear side of the mounting plate is fixed with a motor, and the output end of the motor is fixed with a gear disc for driving the gear ring. The left side of the mounting plate is fixed with a T-shaped rod, the T-shaped rod penetrates the inside of the side plate, the bottom end of the side plate is fixed with a second hydraulic cylinder, the bottom end of the second hydraulic cylinder is fixed with a second bottom plate, By adopting the above technical solution, the rubber plate can be fitted with equal-diameter pipes or unequal-diameter pipes, so as to fix straight-cylinder pipes and conical pipes of different sizes, and the pipe can be conveniently rotated after being fixed, and the pipe angle is flexible.

[0005] As a preferred technical solution of the present application, the pipe contact assembly comprises an arc-shaped connecting rod, a moving roller, a first supporting rod, a second supporting rod, a limiting rod, a blocking rod, a first pressing plate, a second pressing plate, a rubber plate and a screw rod, the front end of the arc-shaped connecting rod is fixed with a moving roller, the front end of the moving roller is rotatably installed with a first supporting rod through a latch, the end of the first supporting rod away from the moving roller is rotatably connected with a second supporting rod through a latch, the rear of the second supporting rod is provided with a limiting rod, the lower surfaces of the limiting rod and the second supporting rod are both fixed with a first pressing plate, the top end of the limiting rod is installed with a blocking rod, the bottom end of the first pressing plate is rotatably installed with a second pressing plate, the lower surface of the second pressing plate is connected with a rubber plate, the inside of the first pressing plate is threadedly connected with a screw rod at both ends, and the bottom end of the screw rod is in spherical structure.

[0006] By adopting the above technical solution, since the lower surface of the second pressing plate is connected with a rubber plate, the setting of the rubber plate can avoid deformation or damage of the pipe when fixing the pipe.

[0007] As a preferred technical solution of the present application, the arc-shaped connecting rod is installed inside the arc-shaped slot, and the moving rollers are distributed at equal angles in the arc-shaped slot.

[0008] By adopting the technical scheme, the arc-shaped connecting rod is installed inside the arc-shaped groove, the size of the rear end of the arc-shaped connecting rod is larger than the size of the front end, so that the arc-shaped connecting rod is prevented from falling out of the arc-shaped groove, a plurality of groups of moving rollers are connected through the arc-shaped connecting rod, so that the plurality of groups of arc-shaped connecting rods can rotate synchronously, and the second pressing plate and the rubber plate arranged at equal angles can be lifted synchronously, and pipes of different sizes can be fixed.

[0009] As a preferred technical scheme of the present application, the stop rod is fixedly installed at the inner side of the arc-shaped plate, the limiting rod and the stop rod form a lifting structure, and a scale line is arranged on the front side of the stop rod. By adopting the technical scheme, the front side of the stop rod is provided with a scale line, and the lifting height of the limiting rod can be conveniently observed through the scale line arranged on the front side of the stop rod.

[0010] As a preferred technical scheme of the present application, the positioning assembly comprises an outer connecting plate, an arc-shaped rod, an adjusting ring, and a trapezoidal block, the outer connecting plate is fixedly installed at the front end of the moving roller, the outer side of the outer connecting plate is fixed with the arc-shaped rod, the outer side of the arc-shaped rod is provided with the adjusting ring, and the outer side of the adjusting ring is fixed with the trapezoidal block.

[0011] By adopting the technical scheme, the outer connecting plate is fixedly installed at the front end of the moving roller, so that the outer connecting plate can move along with the moving roller.

[0012] As a preferred technical scheme of the present application, the trapezoidal block and the tooth ring are connected in a clamping manner.

[0013] By adopting the technical scheme, the trapezoidal block and the tooth ring are connected in a clamping manner, so that the moving roller can be limited, and the second pressing plate and the rubber plate can be limited.

[0014] As a preferred technical scheme of the present application, the tooth disc and the tooth ring are engagedly connected, and the tooth disc is symmetrically arranged about the center line of the tooth ring.

[0015] By adopting the technical scheme, the tooth disc and the tooth ring are engagedly connected, the tooth disc drives the tooth ring to rotate when the tooth disc rotates, so that the pipe limited inside the tooth ring can rotate, and the tooth disc is symmetrically arranged about the center line of the tooth ring, so that the tooth ring with the notch can be rotated by 360° through the upper and lower two tooth discs.

[0016] As a preferred technical scheme of the present application, the connecting frame is rotatably installed at the bottom end of the mounting plate, the rectangular plate is fixedly installed at the bottom end of the connecting frame, the first hydraulic cylinder is fixedly installed at the lower surface of the rectangular plate through screws, and the first bottom plate is fixedly installed at the bottom end of the first hydraulic cylinder.

[0017] By adopting the technical scheme, the first hydraulic cylinder is fixedly installed at the lower surface of the rectangular plate through screws, the rectangular plate and the first hydraulic cylinder can be disassembled and assembled, and the first hydraulic cylinder and the first bottom plate can be flexibly used.

[0018] As a preferred technical scheme of the present application, the mounting plate is rotatably connected with the side plate through the T-shaped rod.

[0019] By adopting the above technical scheme, since the mounting plate is rotatably connected with the side plate through the T-shaped rod, the mounting plate can be rotated outside the side plate, so that the angle of the pipe defined by the mounting plate can be adjusted.

[0020] As a preferred technical scheme of the present application, the T-shaped rod is fixedly connected with the side plate through the screw.

[0021] By adopting the above technical scheme, since the T-shaped rod and the side plate are fixed through the screw, the mounting plate can be conveniently rotated or positioned, and the angle of the pipe on the mounting plate can be positioned.

[0022] Compared with the prior art, the building pipe clamping device has the advantages that the rubber plate can be attached to the equal-diameter pipe or the unequal-diameter pipe, so that different sizes of straight pipes and conical pipes can be fixed, and after the pipe is fixed, the pipe can be conveniently rotated, and the pipe angle is flexible; 1. The pipe contacting assembly can be attached to the outer side of the equal-diameter pipe or the unequal-diameter pipe, and the pipe contacting assembly includes an arc-shaped connecting rod, a moving roller, a first supporting rod, a second supporting rod, a limiting rod, a blocking rod, a first pressing plate, a second pressing plate, a rubber plate, and a screw rod. The screw rod is manually rotated to lift the outer end of the screw rod, control the position of the two groups of screw rods, control the inclination of the second pressing plate and the rubber plate, and make the rubber plate attachable to the equal-diameter pipe or the unequal-diameter pipe. The arc-shaped connecting rod and the moving roller are rotated to lift the limiting rod, so as to lift the first pressing plate, the second pressing plate, and the rubber plate. The pipe contacting assembly receives pipes of different diameters, and then the positioning assembly positions the pipe contacting assembly, and the pipe contacting assembly and the positioning assembly cooperate to fix pipes of different sizes. The trapezoidal block and the tooth ring tooth gap are engaged to limit the pipe contacting assembly. The positioning assembly includes an outer connecting plate, an arc-shaped rod, an adjusting ring, and a trapezoidal block. The adjusting ring can slide outside the arc-shaped rod. The sliding of the adjusting ring and the trapezoidal block and the equiangularly arranged tooth gap can fix the moving roller rotated to any position. 2. The outer end of the arc-shaped plate is provided with a notch, so that the pipe can be directly installed into the arc-shaped plate from the notch of the arc-shaped plate, and the pipe can be quickly installed. After the pipe is fixed, the motor drives the gear disc to rotate, and the tooth ring meshing connected with the gear disc rotates, so that the pipe can be rotated. The upper and lower two groups of gear discs can make the tooth ring with the notch rotate 360°. 3. The mounting plate is rotatably connected with the side plate through the T-shaped rod, and the arc-shaped plate and the pipe fitting can be turned over by turning over the mounting plate, so that the inclination angle of the pipe fitting is changed, and the pipe fitting can be fixed in the vertical direction or the horizontal direction. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The illustrative embodiments of the present application and their description serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings: Figure 1 It is a front view of the structure of the present application; Figure 2 It is a first cut structure schematic diagram of the mounting plate of the present application; Figure 3 It is a second cut structure schematic diagram of the mounting plate of the present application; Figure 4 It is a rear view of the structure of the present application; Figure 5 It is a split structure schematic diagram of the present application; Figure 6 It is a connection structure schematic diagram of the pipe fitting contact assembly and the positioning assembly of the present application; Figure 7 It is a connection structure schematic diagram of the second pressing plate and the first pressing plate of the present application; Figure 8 It is a connection structure schematic diagram of the adjusting ring and the arc-shaped rod of the present application; Figure 9 It is a connection structure schematic diagram of the arc-shaped plate and the mounting plate of the present application; Figure 10 It is a structure schematic diagram of the mounting plate in the rotating state of the present application.

[0024] In the drawings: 1, mounting plate; 2, arc-shaped plate; 3, arc-shaped groove; 4, pipe fitting contact assembly; 401, arc-shaped connecting rod; 402, moving roller; 403, first supporting rod; 404, second supporting rod; 405, limiting rod; 406, blocking rod; 407, first pressing plate; 408, second pressing plate; 409, rubber plate; 410, screw rod; 5, tooth ring; 6, positioning assembly; 601, external connecting plate; 602, arc-shaped rod; 603, adjusting ring; 604, trapezoidal block; 7, motor; 8, toothed disc; 9, connecting frame; 10, rectangular plate; 11, first hydraulic cylinder; 12, first bottom plate; 13, T-shaped rod; 14, side plate; 15, second hydraulic cylinder; 16, second bottom plate. DETAILED DESCRIPTION

[0025] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0026] Please refer to Figures 1-10 , the existing pipe clamping device for building construction is inconvenient to fix different pipes, and it is inconvenient to rotate the pipe after fixing the pipe, thereby being inconvenient to assist in processing the pipe. In order to solve this technical problem, the embodiment discloses the following technical content. A pipe clamping device for building construction, comprising a mounting plate 1, an arc-shaped plate 2, an arc-shaped groove 3, a pipe contact assembly 4, a gear ring 5, a positioning assembly 6, a motor 7, a gear disc 8, a connecting frame 9, a rectangular plate 10, a first hydraulic cylinder 11, a first bottom plate 12, a T-shaped rod 13, a side plate 14, a second hydraulic cylinder 15 and a second bottom plate 16. As shown in Figure 1 , the left side of the mounting plate 1 is fixed with the T-shaped rod 13, the T-shaped rod 13 penetrates the inside of the side plate 14, the bottom end of the side plate 14 is fixed with the second hydraulic cylinder 15, the bottom end of the second hydraulic cylinder 15 is fixed with the second bottom plate 16, the mounting plate 1 is supported by the side plate 14, the second hydraulic cylinder 15 and the second bottom plate 16, the inside of the second bottom plate 16 is provided with a mounting groove, the second bottom plate 16 can be fixed on the workbench or the ground through the mounting groove and the screws, and the height of the side plate 14 and the mounting plate 1 can be adjusted by the second hydraulic cylinder 15; The front end of the mounting plate 1 is rotatably installed with the arc-shaped plate 2, as shown in Figure 2 , Figure 3 and Figure 4 , the arc-shaped plate 2 is located at the front end of the mounting plate 1, the size of the rear end is greater than that of the front end, so that the arc-shaped plate 2 can be prevented from falling off the mounting plate 1; The front end of the arc-shaped plate 2 is provided with the arc-shaped groove 3, the front side of the arc-shaped plate 2 is provided with the pipe contact assembly 4 for abutting the equal-diameter pipe or the unequal-diameter pipe, and the outer end of the arc-shaped plate 2 is integrally connected with the gear ring 5, and the pipe contact assembly 4 is positioned and installed on the arc-shaped plate 2 through the positioning assembly 6; As shown in Figure 1 , Figure 4 and Figure 5 , the upper and lower ends of the arc-shaped plate 2 are provided with the pipe contact assembly 4, first, the position of the lower pipe contact assembly 4 is adjusted according to the size of the pipe, so that after the pipe is placed on the pipe contact assembly 4, the center of the pipe coincides with the center of the arc-shaped plate 2; As shown in Figure 1 , Figure 3 , Figure 5 ,Figure 6 And Figure 7 As shown in the figure, the pipe contact assembly 4 comprises an arc-shaped connecting rod 401, a moving roller 402, a first supporting rod 403, a second supporting rod 404, a limiting rod 405, a blocking rod 406, a first pressing plate 407, a second pressing plate 408, a rubber plate 409, and a screw rod 410. The front end of the arc-shaped connecting rod 401 is fixed with the moving roller 402. The front end of the moving roller 402 is rotatably connected with the first supporting rod 403 through a pin. The end of the first supporting rod 403 away from the moving roller 402 is rotatably connected with the second supporting rod 404 through a pin. The rear of the second supporting rod 404 is provided with the limiting rod 405. The lower surfaces of the limiting rod 405 and the second supporting rod 404 are both fixed with the first pressing plate 407. The top end of the limiting rod 405 is provided with the blocking rod 406. The bottom end of the first pressing plate 407 is rotatably connected with the second pressing plate 408. The lower surface of the second pressing plate 408 is connected with the rubber plate 409 through pasting. The inner front and rear ends of the first pressing plate 407 are both screw-connected with the screw rod 410. The bottom end of the screw rod 410 is in a spherical structure. The arc-shaped connecting rod 401 is installed inside the arc-shaped groove 3. The blocking rod 406 is fixedly installed on the inner side surface of the arc-shaped plate 2 at equal angles. The limiting rod 405 and the blocking rod 406 constitute a lifting structure. The front side surface of the blocking rod 406 is provided with a scale line. When adjusting the positions of the lower second pressing plate 408 and the rubber plate 409, the lower arc-shaped connecting rod 401 is manually rotated. The arc-shaped connecting rod 401 rotates inside the arc-shaped groove 3. With the rotation of the arc-shaped connecting rod 401, the lower groups of moving rollers 402 are synchronously rotated, so that the first supporting rod 403 is rotated, and then the second supporting rod 404 and the limiting rod 405 are lifted and lowered. The movement track of the limiting rod 405 is limited by the blocking rod 406. The first pressing plate 407 is lifted and lowered along with the limiting rod 405. The positions of the second pressing plate 408 and the rubber plate 409 are adjusted. In the process of moving the limiting rod 405, the lifting height of the limiting rod 405 is observed through the scale line on the blocking rod 406, so as to understand the position of the rubber plate 409. The front side of the arc-shaped plate 2 is provided with a scale line, so that the rotation angle of the moving roller 402 can be understood through the scale line on the arc-shaped plate 2. After adjusting the second pressing plate 408 and the rubber plate 409 to the target height, the moving roller 402 is positioned through the positioning assembly 6, as shown in Figure 6 And Figure 8 As shown in the figure, the positioning assembly 6 comprises an outer connecting plate 601, an arc-shaped rod 602, an adjusting ring 603, and a trapezoidal block 604. The outer side surface of the outer connecting plate 601 is fixed with the arc-shaped rod 602. The outer side of the arc-shaped rod 602 is provided with the adjusting ring 603. The outer side surface of the adjusting ring 603 is fixed with the trapezoidal block 604. The connection mode between the trapezoidal block 604 and the tooth ring 5 is snap-fit connection. Slightly slide the adjusting ring 603 manually according to the position of the tooth gap of the toothed ring 5. The adjusting ring 603 slides on the arc rod 602 so that the trapezoidal block 604 is aligned with the nearest tooth gap on the toothed ring 5. Then flip the trapezoidal block 604 and the adjusting ring 603 so that the trapezoidal block 604 is inserted into the tooth gap of the toothed ring 5, thereby limiting the moving roller 402, and further limiting the first pressure plate 407, the second pressure plate 408 and the rubber plate 409. After the positions of the lower second pressure plate 408 and rubber plate 409 are fixed, the pipe fitting is placed on the lower rubber plate 409. The pipe fitting can be placed from the notch of the arc plate 2. Then, the position of the upper pipe fitting contact assembly 4 is adjusted, and the pipe fitting is fixed by the upper and lower sets of pipe fitting contact assemblies 4. When it is not necessary to align the center of the pipe fitting with the center of the arc plate 2, it is sufficient to adjust the positions of the upper and lower sets of pipe fitting contact components 4 to be inconsistent. When the pipe fittings that need to be fixed are of different diameters, the operator manually rotates the screw 410 to raise or lower the screw 410. The outer end of the screw 410 abuts against the second pressure plate 408. The raising or lowering of the screw 410 rotates the second pressure plate 408, causing the second pressure plate 408 to tilt. During the adjustment phase, the pipe fittings that need to be fixed can be placed on the rubber plate 409 first. Then, the staff can manually operate the screw 410 to make the rubber plate 409 fit against the outer side of the pipe fittings of different diameters. After that, the pipe fittings can be removed, and then the height of the rubber plate 409 can be adjusted. like Figure 2 , Figure 3 , Figure 4 and Figure 9 As shown, a motor 7 is fixed to the rear side of the mounting plate 1, and a gear 8 is fixed to the output end of the motor 7. The gear 8 is meshed with the gear ring 5, and the gear 8 is symmetrically arranged about the center line of the gear ring 5. When the fixed pipe needs to be rotated, the motor 7 (not shown in the figure) is turned on by the controller. The motor 7 drives the toothed disc 8 to rotate, and the toothed ring 5 that meshes with the toothed disc 8 rotates. As a result, the arc plate 2 rotates in the annular groove of the mounting plate 1, which in turn causes the pipe fixed on the arc plate 2 to rotate. The upper and lower sets of toothed discs 8 can make the toothed ring 5 with notches and the arc plate 2 rotate 360°. A connecting frame 9 is rotatably mounted on the bottom end of the mounting plate 1. A rectangular plate 10 is fixed to the bottom end of the connecting frame 9. A first hydraulic cylinder 11 is fixed to the lower surface of the rectangular plate 10 by screws. A first base plate 12 is fixed to the bottom end of the first hydraulic cylinder 11. The mounting plate 1 forms a rotating structure with the side plate 14 through a T-shaped rod 13. The T-shaped rod 13 is fixedly connected to the side plate 14 by screws. When the pipe needs to be fixed vertically, the screw for connecting the T-shaped rod 13 and the side plate 14 is removed, then the mounting plate 1 is rotated to make the mounting plate 1 parallel to the first bottom plate 12 and the second bottom plate 16, the connecting frame 9, the rectangular plate 10, the first hydraulic cylinder 11 and the first bottom plate 12 are turned over, then the height of the first bottom plate 12 is adjusted under the action of the first hydraulic cylinder 11 so that the first bottom plate 12 is consistent with the second bottom plate 16 in height, the mounting plate 1 is supported by the connecting frame 9, the rectangular plate 10, the first hydraulic cylinder 11 and the first bottom plate 12, the pipe is vertically inserted into the left and right two groups of pipe contact assemblies 4, and the pipe is limited by the pipe contact assembly 4 and the positioning assembly 6, and the first bottom plate 12 is internally provided with a threaded hole, so that the first bottom plate 12 can be fixed on the ground or the workbench through the threaded hole and the screw; When the first hydraulic cylinder 11 and the first bottom plate 12 are not needed to be supported, the screw for connecting the rectangular plate 10 and the first hydraulic cylinder 11 is removed, and then the first hydraulic cylinder 11 and the first bottom plate 12 are removed; The above completes a series of operations of the pipe clamping device for building construction, and the contents not described in detail in the description belong to the prior art known to those skilled in the art.

[0027] The standard parts used in the application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, and the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the mechanical parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0028] Although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the application shall be included in the protection scope of the application.

Claims

1. A pipe clamping device for construction, comprising a mounting plate (1), an arc-shaped plate (2) and a side plate (14), characterized in that: the front end of the mounting plate (1) is rotatably provided with the arc-shaped plate (2), the front end of the arc-shaped plate (2) is provided with an arc-shaped slot (3), the front side of the arc-shaped plate (2) is provided with a pipe contact assembly (4) for fitting equal-diameter pipes or unequal-diameter pipes, the outer end of the arc-shaped plate (2) is integrally connected with a gear ring (5), and the pipe contact assembly (4) is positioned and installed on the arc-shaped plate (2) through a positioning assembly (6); the rear side of the mounting plate (1) is fixedly provided with a motor (7), and the output end of the motor (7) is fixedly provided with a gear disc (8) for driving the gear ring (5); the left side of the mounting plate (1) is fixedly provided with a T-shaped rod (13), the T-shaped rod (13) penetrates through the inside of the side plate (14), the bottom end of the side plate (14) is fixedly provided with a second hydraulic cylinder (15), and the bottom end of the second hydraulic cylinder (15) is fixedly provided with a second bottom plate (16).

2. A pipe clamping device for use in construction according to claim 1, characterized in that: The pipe contact assembly (4) comprises an arc-shaped connecting rod (401), a moving roller (402), a first supporting rod (403), a second supporting rod (404), a limiting rod (405), a blocking rod (406), a first pressing plate (407), a second pressing plate (408), a rubber plate (409) and a screw rod (410), the front end of the arc-shaped connecting rod (401) is fixedly provided with the moving roller (402), the front end of the moving roller (402) is rotatably provided with the first supporting rod (403) through a bolt, one end of the first supporting rod (403) away from the moving roller (402) is rotatably connected with the second supporting rod (404) through a bolt, the rear of the second supporting rod (404) is provided with the limiting rod (405), the lower surfaces of the limiting rod (405) and the second supporting rod (404) are fixedly provided with the first pressing plate (407), the top end of the limiting rod (405) is provided with the blocking rod (406), the bottom end of the first pressing plate (407) is rotatably provided with the second pressing plate (408), the lower surface of the second pressing plate (408) is adhesively connected with the rubber plate (409), the inside of the first pressing plate (407) is threadedly connected with the screw rod (410) at both ends, and the bottom end of the screw rod (410) is in a spherical structure.

3. A pipe gripping device for use in construction according to claim 2, characterised in that: The arc-shaped connecting rod (401) is installed in the arc-shaped slot (3), and the moving rollers (402) are distributed at equal angles in the arc-shaped slot (3).

4. A pipe gripping device for use in construction according to claim 2, characterized in that: The blocking rod (406) is fixedly installed at equal angles on the inner side of the arc-shaped plate (2), the limiting rod (405) and the blocking rod (406) constitute a lifting structure, and the front side of the blocking rod (406) is provided with a scale line.

5. A pipe gripping device for use in construction according to claim 2, characterized in that: The positioning assembly (6) comprises an outer plate (601), an arc-shaped rod (602), an adjusting ring (603) and a trapezoidal block (604), the outer plate (601) is fixedly installed at the front end of the moving roller (402), the outer side of the outer plate (601) is fixed with the arc-shaped rod (602), the outer side of the arc-shaped rod (602) is provided with the adjusting ring (603), and the outer side of the adjusting ring (603) is fixed with the trapezoidal block (604).

6. A pipe gripping device for use in construction according to claim 5, wherein: The trapezoidal block (604) and the tooth ring (5) are connected in a clamping mode.

7. A pipe gripping device for use in construction according to claim 1, characterized in that: The tooth disc (8) is meshingly connected with the tooth ring (5), and the tooth disc (8) is symmetrically arranged about the center line of the tooth ring (5).

8. A pipe gripping device for use in construction according to claim 1, characterized in that: The bottom end of the mounting plate (1) is rotatably provided with a connecting frame (9), the bottom end of the connecting frame (9) is fixedly provided with a rectangular plate (10), the lower surface of the rectangular plate (10) is fixedly provided with a first hydraulic cylinder (11) through screws, and the bottom end of the first hydraulic cylinder (11) is fixedly provided with a first bottom plate (12).

9. A pipe gripping device for use in construction according to claim 1, characterized in that: The mounting plate (1) and the side plate (14) are rotatably connected through the T-shaped rod (13).

10. A pipe gripping device for use in construction according to claim 1, characterized in that: The T-shaped rod (13) is fixedly connected with the side plate (14) through screws.

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