Supporting frame for installing large-diameter steel pipe

Abstract

The utility model relates to the technical field of water conservancy construction, in particular to a support frame for mounting a large-diameter steel pipe, which comprises a portal frame structure consisting of a cross beam and two support plates, an adjustable lifting device is hoisted on the cross beam, and a clamping component is mounted on the lifting device. According to the supporting frame for installing the large-diameter steel pipe, the support base can be adjusted according to the slope ratio of a slope, meanwhile, the problem that hoisting equipment such as a truck crane is limited is solved, the installation technology is optimized, and safe construction management is improved; the height of the pressure steel pipe is finely adjusted through the electric hoist or the chain hoist, the installation precision is guaranteed, after the pressure steel pipe is installed and fixed, slow force unloading of the supporting frame is completed by loosening the electric hoist or the chain hoist, and the situation that the installed pressure steel pipe deforms after sudden force unloading, and the installation quality is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy construction, in particular to a support frame for installing large-diameter steel pipes. Background Art

[0002] At present, the large-diameter drainage pipes that cross the revetment embankment under construction mostly adopt the "J"-shaped structure, which is to prevent the backflow of river water at the outlet and reduce the damage to the existing embankment, while reducing excavation and backfilling, and reducing construction costs. When designing large-diameter pressure steel pipes in sections, it is necessary to consider the transportation cost and installation operability. When using lifting equipment to install large-diameter pressure steel pipes, the elevation fine-tuning of the pressure steel pipe is greatly restricted, which is not convenient for operation, affecting the installation accuracy and quality of the pressure steel pipe.

[0003] Therefore, it is necessary to provide a new support frame for installing large-diameter steel pipes to solve the above technical problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a support frame capable of measuring cutting length and saving time and effort in installing large-diameter steel pipes.

[0005] The support frame for installing a large-diameter steel pipe provided by the utility model comprises a crossbeam and two support plates respectively fixedly welded to both ends of the crossbeam, and the crossbeam and the two support plates constitute a gantry structure;

[0006] An adjustable lifting device is suspended on the beam, and a clamping assembly is installed on the lifting device. The clamping assembly includes a U-shaped plate, and two threaded through holes are provided on the upper plate wall of the U-shaped plate. A threaded fixing rod with a threaded connection is inserted into each of the threaded through holes.

[0007] Preferably, an adjustment component for adjusting the left and right position of the lifting device is installed in the crossbeam, and the adjustment component includes a threaded rod, the threaded rod is rotatably installed in the installation cavity opened in the crossbeam, and a servo motor for driving the threaded rod to rotate is installed in the crossbeam, a threaded mounting seat with a threaded connection is sleeved on the threaded rod, and a lifting ring is fixedly installed on the bottom of the threaded mounting seat.

[0008] Preferably, limiting rods are fixedly installed in the installation cavities on both sides of the threaded rod, and the two limiting rods respectively pass through two sliding through holes formed in the threaded mounting seat and are slidably connected to the sliding through holes.

[0009] Preferably, the lifting device adopts an electric hoist or a manual hoist.

[0010] Preferably, the lifting device is hooked on a lifting ring at the bottom of the threaded mounting seat, and a chain for hooking in the lifting device is fixedly connected to the upper plate wall of the U-shaped plate.

[0011] Preferably, a pad is fixedly mounted on the bottom of the support plate.

[0012] Preferably, reinforcing ribs are welded at the corners of the gantry structure.

[0013] Preferably, the two support plates are provided with through grooves along their length directions, and the through grooves are gap-matched with the anti-collision plates made of rubber material. Limiting plates arranged perpendicular to the through grooves are fixed on the opposite sides of the two support plates, and the hand-tightened bolts are matched with the preset screw holes on the limiting plates and the ends thereof are pressed against the anti-collision plates.

[0014] Compared with the related art, the support frame for installing large-diameter steel pipes provided by the utility model has the following beneficial effects:

[0015] The support frame of the utility model is simple to install and disassemble, and the support base can also be adjusted according to the slope ratio. It has a wider range of applications and solves the problem of limitations on lifting and hoisting equipment such as car cranes, optimizes the installation process, and improves safe construction management. The height of the pressure steel pipe is fine-tuned by an electric hoist or a manual hoist to ensure installation accuracy. After the pressure steel pipe is installed and fixed, the support frame is slowly unloaded by loosening the electric hoist or the manual hoist, thereby avoiding deformation of the installed pressure steel pipe after sudden unloading of the force, which affects the installation quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural schematic diagram of a preferred embodiment of a support frame for mounting a large diameter steel pipe provided by the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the installation structure of the adjustment component in the beam shown;

[0018] Figure 3 for Figure 2 A schematic structural diagram of the clamping assembly shown. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0021] See also Figures 1 to 3 An embodiment of the utility model provides a support frame for installing a large diameter steel pipe, and the support frame for installing a large diameter steel pipe includes: a crossbeam 1, a clamping component 4 and an adjustment component 5.

[0022] In the embodiments of the present invention, please refer to Figure 1 and Figure 3 , both ends of the crossbeam 1 are fixedly welded with support plates 2, and the crossbeam 1 and the two support plates 2 form a gantry structure, an adjustable lifting device 3 is suspended on the crossbeam 1, and the lifting device 3 adopts an electric hoist or a manual hoist, and a clamping assembly 4 is installed on the lifting device 3, and the clamping assembly 4 includes a U-shaped plate 41, and two threaded through holes are provided on the upper plate wall of the U-shaped plate 41, and a threaded fixing rod 42 connected by thread is inserted in each of the threaded through holes, and the chain used for hooking in the lifting device 3 is fixedly connected with the upper plate wall of the U-shaped plate 41, and a pad 6 is fixedly installed at the bottom of the support plate 2. A through groove 21 is provided on the two support plates 2 along the length direction thereof, and the through groove 21 is gap-matched with the anti-collision plate 24 made of rubber material, and a limit plate 22 arranged perpendicular to the through groove 21 is fixed on the opposite sides of the two support plates 2, and a hand-tightened bolt 23 is matched with a preset screw hole on the limit plate 22 and the end thereof abuts against the anti-collision plate 24. It should be noted that: according to the engineering design and construction drawings, the maximum nominal diameter of the penstock is DN1028 and the minimum is DN720, with a length of 2m-13m. The length of a single penstock at the slope is not less than 10m. In order to improve the installation quality of the penstock and reduce equipment investment, the on-site materials are used for utility model transformation:

[0023] A. Set the minimum spacing between brackets according to the maximum diameter of the pressure steel pipe 7;

[0024] B. After the construction site is processed according to the design and construction drawings, the support frame layout position is planned, and then the slope of the support frame installation position is processed to meet the design requirements;

[0025] C. Use 2cm thick steel plate as the pad 6 of the support frame legs, use 16 I-beams to make the support plate 2 and the crossbeam, the height of the support plate 2 is adjusted according to the on-site construction conditions, and the width of the crossbeam is greater than the nominal diameter of the pressure steel pipe 7;

[0026] D. After the support frame is manufactured, fix the lifting device 3 (i.e., electric hoist or manual hoist, whose load-bearing capacity is configured according to the weight of the installed steel pipe) on the support frame;

[0027] E. Use a crane to place the pressure steel pipe 7 on the slope in advance, and fix the completed support frame and hand chain hoist at the position planned in advance on the slope;

[0028] F. According to the diameter of the penstock, the hand-tightening bolt 23 is rotated relative to the limit plate 22, so that the hand-tightening bolt 23 pushes the anti-collision plate 24 in the through groove 21 out of the through groove 21 to prevent the penstock from shaking and causing the penstock to hit the support plate 2 when it is subsequently lifted;

[0029] G. Insert the U-shaped plate 41 into the upper edge of the upper end of the pressure steel pipe 7, then rotate the threaded fixing rod 42 to fix and clamp it, and then use the lifting device 3 to complete the lifting of the pressure steel pipe 7;

[0030] The support frame is easy to install and disassemble, and the support base can be adjusted according to the slope ratio. It has a wider range of applications and solves the problem of limited lifting equipment such as car cranes, optimizes the installation process, and improves safe construction management. The height of the pressure steel pipe 7 is fine-tuned by an electric hoist or a manual hoist to ensure installation accuracy. After the pressure steel pipe 7 is installed and fixed, the support frame is slowly unloaded by loosening the electric hoist or the manual hoist to avoid deformation of the installed pressure steel pipe 7 after sudden unloading, which affects the installation quality.

[0031] In the embodiments of the present invention, please refer to Figure 2 The crossbeam 1 is provided with an adjusting assembly 5 for adjusting the left and right positions of the lifting device 3, and the adjusting assembly 5 includes a threaded rod 51, and the threaded rod 51 is rotatably installed in the installation cavity 11 opened in the crossbeam 1, and a servo motor for driving the threaded rod 51 to rotate is installed in the crossbeam 1, and a threaded mounting seat 52 with a threaded connection is sleeved on the threaded rod 51, and a lifting ring is fixedly installed at the bottom of the threaded mounting seat 52, and limiting rods 53 are fixedly installed in the installation cavities 11 on both sides of the threaded rod 51, and the two limiting rods 53 respectively pass through the two sliding through holes opened in the threaded mounting seat 52 and are slidably connected to the sliding through holes, and the lifting device 3 is hooked on the lifting ring at the bottom of the threaded mounting seat 52.

[0032] It should be noted that: the servo motor is turned on to drive the threaded rod 51 to rotate. Since the threaded mounting seat 52 is restricted by the limit rod 53, the threaded mounting seat 52 can fine-tune the electric hoist or manual hoist hoist mounted at the bottom, so that the position of the end of the pressure steel pipe 7 on the slope can be better adjusted.

[0033] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A support frame for mounting a large diameter steel pipe, comprising a crossbeam (1) and two support plates (2) respectively fixedly welded to both ends of the crossbeam (1), wherein the crossbeam (1) and the two support plates (2) form a gantry structure, characterized in that: An adjustable lifting device (3) is suspended on the crossbeam (1), and a clamping assembly (4) is installed on the lifting device (3). The clamping assembly (4) comprises a U-shaped plate (41). Two threaded through holes are formed on the upper plate wall of the U-shaped plate (41), and a threaded fixing rod (42) is inserted into each of the threaded through holes.

2. The support frame for installing a large diameter steel pipe according to claim 1, characterized in that: An adjustment component (5) for adjusting the left-right orientation of the lifting device (3) is installed in the crossbeam (1), and the adjustment component (5) comprises a threaded rod (51), the threaded rod (51) is rotatably installed in a mounting cavity (11) provided in the crossbeam (1), and a servo motor for driving the threaded rod (51) to rotate is installed in the crossbeam (1), a threaded mounting seat (52) connected by a thread is sleeved on the threaded rod (51), and a lifting ring is fixedly installed at the bottom of the threaded mounting seat (52).

3. The support frame for installing a large diameter steel pipe according to claim 2, characterized in that: Limit rods (53) are fixedly installed in the installation cavities (11) on both sides of the threaded rod (51), and the two limit rods (53) respectively pass through two sliding through holes formed in the threaded installation seat (52) and are slidably connected to the sliding through holes.

4. The support frame for installing a large diameter steel pipe according to claim 2, characterized in that: The lifting device (3) is an electric hoist or a manual hoist.

5. The support frame for installing a large diameter steel pipe according to claim 4, characterized in that: The lifting device (3) is hooked on a lifting ring at the bottom of the threaded mounting seat (52), and a chain used for hooking in the lifting device (3) is fixedly connected to the upper plate wall of the U-shaped plate (41).

6. The support frame for installing a large diameter steel pipe according to claim 1, characterized in that: A pad (6) is fixedly mounted on the bottom of the support plate (2).

7. The support frame for installing a large diameter steel pipe according to claim 1, characterized in that: Reinforcement ribs are welded at the corners of the gantry structure.

8. The support frame for installing a large diameter steel pipe according to claim 1, characterized in that: The two support plates (2) are provided with through grooves (21) along their length direction, and the through grooves (21) are clearance-matched with the anti-collision plate (24) made of rubber material. The two support plates (2) are fixed with a limit plate (22) arranged perpendicular to the through grooves (21) on the opposite sides thereof, and the hand-tightened bolts (23) are matched with the preset screw holes on the limit plate (22) and the ends thereof abut against the anti-collision plate (24).

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