Support device and method for installation of vertical shaft pressure steel lining elbow

Abstract

The present invention discloses a supporting device and method for installing a pressure steel lining bend pipe in a vertical shaft, comprising a lifting hook, the lifting hook being fixed to the inner wall of the vertical shaft; the lifting hook being connected to the pressure steel lining bend pipe; a horizontal sliding channel steel being provided directly below the lifting hook, the horizontal sliding channel steel being in sliding cooperation with a bend pipe quick installation device; the bend pipe quick installation device comprising a supporting main beam, the upper surface of which is connected to a fixing mechanism; the fixing mechanism comprising a plurality of stiffening plates connected to both sides of the upper surface of the supporting main beam, a bearing support plate being connected between opposite side surfaces of the stiffening plates. This solution solves the problems of the prior art in that it is difficult to align the angles during the installation of the bend pipe, and that it is easy to scrape against the cave wall, that safety accidents are likely to occur to construction workers, that it is time-consuming and labor-intensive, and that there are high safety hazards. The solution is easy to use, has low cost, can quickly adjust and align the angles of the pipe sections, and reduces the safety risks to the workers.

Description

Technical Field

[0001] The invention belongs to the technical field of municipal engineering, and in particular relates to a supporting device and method for installing a vertical shaft pressure steel lining bent pipe. Background Art

[0002] The installation of steel-lined curved pipes in the diversion tunnel shaft of a hydropower station is a major installation problem in the hydropower industry. Conventional installation involves laying a track along the bottom of the curved section and sliding it to the pipe segment installation location, and then performing installation and welding in the order of the pipe segments. However, this method has the disadvantage that the track angle must be adjusted, and the track must be suspended and protected by a large number of steel sections. During the sliding process of the pressure steel-lined curved pipe, the lifting wire rope is easily rubbed and damaged by the rock layer of the tunnel wall due to the change in the center of the lifting point. At the same time, the construction workers are working at height during the installation of the curved pipe, which poses a huge safety hazard. After the steel lining of the entire curved pipe section is fully installed, it is handed over to the civil engineering unit for pouring concrete. This solution is not only time-consuming, but also has great safety hazards and is uneconomical. Therefore, it is necessary to design a support device and method for the installation of pressure steel-lined curved pipes in the vertical shaft to solve the above problems. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a supporting device and method for the installation of vertical shaft pressure steel lining elbows. This solution solves the problems in the existing technology that it is difficult to align the angles during the installation of the elbows, and it is easy to scratch the tunnel walls, which makes construction workers prone to safety accidents, is time-consuming and labor-intensive, and has high safety hazards. It is easy to use, low cost, can quickly adjust and align the pipe section angles, and reduces the safety risks of operators.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] The supporting device for installing the pressure steel lining bent pipe in the vertical shaft includes a lifting hook, which is fixed to the inner wall of the vertical shaft; the lifting hook is hung with the pressure steel lining bent pipe; a horizontal sliding channel steel is arranged directly below the lifting hook, and the horizontal sliding channel steel is slidingly matched with the bent pipe quick installation device; the bent pipe quick installation device includes a supporting main beam, and the upper surface of the supporting main beam is connected to a fixing mechanism; the fixing mechanism includes a plurality of stiffening plates connected to both sides of the upper surface of the supporting main beam, and a load-bearing support plate is connected between the opposite side surfaces of the stiffening plates.

[0006] Preferably, no less than two groups of bearing pallets are provided; and positioning baffles are connected to the upper surface of the supporting main beam between the bearing pallets.

[0007] Preferably, two oblique supports are hinged to one end of the upper surface of the supporting main beam, one end of the oblique support is hinged to the upper surface of the supporting main beam, and the other end is hinged to the stiffening ring on the outer surface of the pressure steel lining elbow.

[0008] Preferably, the carrying tray comprises a hollow bottom plate with an opening on the upper surface of the bottom plate, and a sliding plate is inserted into the opening and slidably connected to the inner wall of the bottom plate.

[0009] Preferably, a plurality of threaded holes with equal spacing are provided at both ends of one side surface of the sliding plate to form a vertical row; the threaded holes are threadedly connected to the first locking bolts provided on the side surface of the bottom plate.

[0010] Preferably, a ball hinge mechanism is provided at the top of the sliding plate, the screw at the bottom end of the ball hinge mechanism is threadedly connected to the top end of the sliding plate, the screw at the top end of the ball hinge mechanism is threadedly connected to the bottom end of the arc support plate, and the concave side of the arc support plate faces upward to contact and cooperate with the pressure steel lining bend pipe.

[0011] Preferably, a protractor is connected to the top of one surface of the sliding plate, a hook and an elastic rope are connected to the center of the protractor, and the elastic rope is hooked and matched with the supporting plate on the other side.

[0012] Preferably, the positioning baffle includes an outer plate with a hollow structure, an inner plate is slidably connected to the inner side of the outer plate, the top of the inner plate is a slope structure, and a rubber pad is connected to the surface of the slope structure to contact and cooperate with the pressure steel lining elbow.

[0013] Preferably, a plurality of corrugated grooves are provided on one side surface of the inner plate, and a second locking bolt is provided on one side surface of the outer plate to interfere with and cooperate with the corrugated grooves.

[0014] Preferably, the method for supporting the device for installing a vertical shaft pressure steel liner elbow comprises the following steps:

[0015] S1, the lifting hook lifts the pressure steel lining elbow from both ends, and then drops it from the shaft to the bottom elevation of the shaft. According to the predetermined inclination angle, the construction workers use the hand chain hoist hanging above the lifting hook to adjust the angle of the pressure steel lining elbow to the required installation angle;

[0016] S2, pull the pipe bending quick installation device to the bottom of the pipe bending through the horizontal sliding channel steel, and then drive wooden wedges into the horizontal sliding channel steels at both ends of the slider to brake and position it to prevent the pipe bending quick installation device from moving during the supporting process;

[0017] S3, adjust the support position of the elbow quick installation device, the specific method is as follows:

[0018] S301: First, adjust the height of one set of supporting plates on the quick installation device for elbow pipes according to the position height of the previously installed pipe segments, and lock it with a first locking bolt to complete the height positioning;

[0019] S302: Based on the predetermined tilt angle in S1, the height of the other set of supporting plates on the quick installation device for the bent pipe is adjusted and locked with the first locking bolt to complete the angle positioning. During adjustment, the elastic rope on the top of one set of supporting plates is pulled up, hung on the hook on the top of the other set of supporting plates, and stretched straight. At this time, the angle indicated by the elastic rope on the protractor is observed to intuitively determine the angle of the inclined surface formed between the two sets of supporting plates.

[0020] S303, adjusting the extension height of the outer plate and the inner plate of the positioning baffle, and locking them with the second locking bolt so that the slope structure on the top of the positioning baffle and the bearing support plate are at the same height position;

[0021] S4, slowly place the pressure steel lining elbow on the surface of the elbow quick installation device with the support position adjusted by the lifting hook, then hinge the two oblique supports to the stiffening ring on the outer surface of the pressure steel lining elbow to complete the oblique support fixation. After dropping to the support position, fine adjustment and fixation can be carried out;

[0022] S5, using a winch or hand hoist, pull the quick installation device with the bent pipe to the installation location, and weld the bent pipe to the remaining pipe sections after it is pulled to the installation location;

[0023] S6. After the pipe segment is installed and welded, there is no need to remove the quick-install device for the elbow. Concrete can be poured directly together with the elbow, so that the device acts as a permanent fixed support for the elbow.

[0024] Furthermore, when the supporting plate cannot be precisely adjusted to the desired angle, fine adjustment can be performed by inserting a pad into the concave surface of the arc-shaped support plate.

[0025] Furthermore, both ends of the ball joint mechanism are detachable structures, and arc-shaped support plates of different curvatures can be replaced to meet the support requirements of pipe sections of different sizes.

[0026] The beneficial effects of the present invention are:

[0027] 1. This solution has designed an angle-adjustable quick-install device for pipe bends, which can support pipe bends of different sizes and curvatures. It does not require additional customized support processing for each pipe segment. By standardizing the processing of the quick-install device for pipe bends, it can meet the transportation and installation requirements of all pipe bends, greatly improving work efficiency and reducing costs.

[0028] 2. This solution allows the support position to be adjusted in advance according to the required installation angle. The support angle can be read intuitively with a protractor, and fixed-angle support can be completed in one hoisting operation. This solution omits the steps of transporting the steel lining to the installation site with a transport trolley, lifting the steel lining elbow with a jack, supporting the elbow with section steel, and then removing the transport trolley. The steel lining installation inclination angle, elevation, pile number, center and other parameters are adjusted, and finally welding is performed with the previously installed steel lining. This greatly shortens the installation cycle, improves installation efficiency, and reduces construction costs.

[0029] 3. The device does not need to be recycled after transportation, and can be directly supported by the casting of pipe sections. It is particularly suitable for the cross-operation of the installation of high-strength steel elbow linings in vertical shafts and civil engineering units. Because the high-strength steel lining cannot be spot-welded at will during the entire installation process if it is not preheated, the use of this device fully meets this installation requirement; after the elbow is basically installed, two single sections can be cast once, and after the pouring of concrete and other strong parts is completed, the installation of the remaining pipe sections can be continued. According to this method, the entire elbow can be installed; it effectively reduces the safety hazards of high-altitude operations, reduces the investment in a large amount of steel sections, reduces construction costs, speeds up construction progress, ensures construction quality, improves construction efficiency, and can create good economic benefits and social value. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] Figure 2 It is a front view schematic diagram of the present invention;

[0032] Figure 3 is a side schematic view of the present invention;

[0033] Figure 4 is a schematic top view of the present invention;

[0034] Figure 5 Schematic diagram of the position distribution of two groups of supporting plates and positioning baffles in the present invention;

[0035] Figure 6 It is a structural schematic diagram of the carrying plate in the present invention;

[0036] Figure 7 Schematic diagram of the elbow being hoisted to the bottom of the shaft and adjusted to an installation inclination angle in Example 2 of the present invention;

[0037] Figure 8 This is a schematic diagram of the device for placing and installing a bent pipe in Example 2 of the present invention;

[0038] Figure 9 Schematic diagram of the elbow installation device in Example 2 of the present invention being pulled to the installation location;

[0039] The accompanying drawings are marked as follows: vertical shaft 1, lifting hook 2, pressure steel lined elbow 3, elbow quick installation device 4, supporting main beam 41, slider 42, oblique support 43, load-bearing support plate 44, positioning baffle 45, stiffening plate 46, horizontal sliding channel steel 5, outer plate 51, inner plate 52, rubber pad 53, corrugated groove 54, second locking bolt 55, bottom plate 61, sliding plate 62, threaded hole 63, first locking bolt 64, ball hinge mechanism 7, arc support plate 8, protractor 9, hook 91, elastic rope 92. DETAILED DESCRIPTION

[0040] Example 1:

[0041] like Figures 1 to 6 As shown, the supporting device for the installation of the pressure steel lining bend pipe in the vertical shaft includes a lifting hook 2, which is fixed to the inner wall of the vertical shaft 1; the lifting hook 2 is hung with the pressure steel lining bend pipe 3; a horizontal sliding channel steel 5 is provided directly below the lifting hook 2, and the horizontal sliding channel steel 5 is slidably matched with the bend pipe quick installation device 4; the bend pipe quick installation device 4 includes a supporting main beam 41, and the upper surface of the supporting main beam 41 is connected to a fixing mechanism; the fixing mechanism includes a plurality of stiffening plates 46 connected to both sides of the upper surface of the supporting main beam 41, and a bearing support plate 44 is connected between the opposite side surfaces of the stiffening plates 46.

[0042] Preferably, at least two groups of supporting plates 44 are provided; and a positioning baffle 45 is connected to the upper surface of the supporting main beam 41 between the supporting plates 44 .

[0043] Preferably, two oblique supports 43 are hinged to one end of the upper surface of the supporting main beam 41 , one end of the oblique support 43 is hinged to the upper surface of the supporting main beam 41 , and the other end is hinged to the stiffening ring on the outer surface of the pressure steel lining elbow 3 .

[0044] Preferably, the supporting plate 44 includes a hollow bottom plate 61 , the upper surface of the bottom plate 61 is open, and a sliding plate 62 is inserted into the opening and slidably connected to the inner wall of the bottom plate 61 .

[0045] Preferably, a plurality of threaded holes 63 with equal spacing are provided at both ends of one side surface of the sliding plate 62 to form a vertical row; the threaded holes 63 are threadedly connected to the first locking bolts 64 provided on the side surface of the bottom plate 61 .

[0046] Preferably, a ball hinge mechanism 7 is provided at the top of the sliding plate 62, the screw at the bottom end of the ball hinge mechanism 7 is threadedly connected to the top end of the sliding plate 62, the screw at the top end of the ball hinge mechanism 7 is threadedly connected to the bottom end of the arc support plate 8, and the concave side of the arc support plate 8 faces upward to contact and cooperate with the pressure steel lined elbow 3.

[0047] Preferably, a protractor 9 is connected to the top of one side surface of the sliding plate 62 , a hook 91 and an elastic rope 92 are connected to the center of the protractor 9 , and the elastic rope 92 is hooked and matched with the supporting plate 44 on the other side.

[0048] Preferably, the positioning baffle 45 includes an outer plate 51 with a hollow structure, an inner plate 52 is slidably connected inside the outer plate 51, the top of the inner plate 52 is a slope structure, and a rubber pad 53 is connected to the surface of the slope structure to contact and cooperate with the pressure steel lined elbow 3.

[0049] Preferably, a plurality of corrugated grooves 54 are provided on one side surface of the inner plate 52 , and a second locking bolt 55 is provided on one side surface of the outer plate 51 to interfere with and cooperate with the corrugated grooves 54 .

[0050] Example 2:

[0051] like Figures 7 to 9 As shown, the method for supporting the device for installing the vertical shaft pressure steel liner elbow comprises the following steps:

[0052] S1, the lifting hook 2 lifts the pressure steel lining elbow 3 from both ends, and then drops it from the shaft 1 to the bottom elevation of the shaft 1. According to the predetermined inclination angle, the construction workers use the hand chain hoist hanging above the lifting hook 2 to adjust the angle of the pressure steel lining elbow 3 to the required installation angle;

[0053] S2, pull the bend pipe quick installation device 4 to the bottom of the bend pipe through the horizontal sliding channel steel 5, and then drive wooden wedges into the horizontal sliding channel steel 5 at both ends of the slider 42 to brake and position it to prevent the bend pipe quick installation device 4 from moving during the supporting process;

[0054] S3, adjust the supporting position of the elbow quick installation device 4, the specific method is as follows:

[0055] S301, first adjust the height of one set of supporting plates 44 on the quick elbow installation device 4 according to the position height of the previously installed pipe segment, and lock it with the first locking bolt 64 to complete the height positioning;

[0056] S302: Based on the predetermined tilt angle in S1, the height of the other set of supporting plates 44 on the quick-installation device for bent pipes 4 is adjusted and locked with the first locking bolt 64 to complete the angle positioning. During adjustment, the elastic rope 92 on the top of one set of supporting plates 44 is pulled up, hung on the hook 91 on the top of the other set of supporting plates 44, and stretched straight. At this time, the angle indicated by the elastic rope 92 on the protractor 9 is observed to intuitively determine the angle of the inclined surface formed between the two sets of supporting plates 44.

[0057] S303, adjusting the extension height of the outer plate 51 and the inner plate 52 of the positioning baffle 45, and locking it with the second locking bolt 55 so that the slope structure at the top of the positioning baffle 45 and the supporting plate 44 are at the same height;

[0058] S4, slowly place the pressure steel lining elbow 3 on the surface of the elbow quick installation device 4 with the support position adjusted by the lifting hook 2, then hinge the two oblique supports 43 to the stiffening ring on the outer surface of the pressure steel lining elbow 3 to complete the oblique support fixation. After falling to the support position, fine adjustment and fixation can be carried out;

[0059] S5, using a winch or hand hoist, pull the quick installation device with the bent pipe to the installation location, and weld the bent pipe to the remaining pipe sections after it is pulled to the installation location;

[0060] S6, when the pipe segment is installed and welded, there is no need to remove the elbow quick installation device 4, and concrete pouring is performed directly together with the elbow, so that the device serves as a permanent fixed support for the elbow.

[0061] Furthermore, when the supporting plate 44 cannot be precisely adjusted to the desired angle, a fine adjustment can be performed by inserting a pad into the concave surface of the arc-shaped supporting plate 8 .

[0062] Furthermore, both ends of the ball joint mechanism 7 are detachable structures, and arc-shaped support plates 8 of different curvatures can be replaced to meet the support requirements of pipe sections of different sizes.

[0063] Furthermore, the load-bearing main beam is 20# I-steel, the slider 42 is 20# I-steel, the oblique support 43 is 18# I-steel, the load-bearing support plate 44 is δ=20mm steel plate, the positioning baffle 45 is δ=20mm steel plate, and the stiffening plate 46 is δ=20mm steel plate.

[0064] Furthermore, the traction system generally adopts a 3t winch, a wire rope ф16 mm, or a 5t hand chain hoist, and the horizontal sliding channel steel 5 can adopt 18# channel steel and the slider 42.

[0065] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The embodiments and features in the embodiments of this application may be arbitrarily combined with each other unless they conflict. The scope of protection of the present invention shall be the technical solutions described in the claims, including equivalent alternatives to the technical features of the technical solutions described in the claims. Equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A supporting device for installing a steel-lined elbow pipe in a vertical shaft, comprising a lifting hook (2) fixed to the inner wall of the vertical shaft (1); characterized in that: The lifting hook (2) is connected to the pressure steel-lined bent pipe (3); a horizontal sliding channel steel (5) is provided directly below the lifting hook (2), and the horizontal sliding channel steel (5) is slidably matched with the bent pipe quick installation device (4); the bent pipe quick installation device (4) includes a supporting main beam (41), the upper surface of the supporting main beam (41) is connected to a fixing mechanism, and the lower surface of the supporting main beam (41) is connected to a slider (42); the fixing mechanism includes a plurality of stiffening plates (46) connected to both sides of the upper surface of the supporting main beam (41), and a bearing support plate (44) is connected between the opposite side surfaces of the stiffening plates (46); a positioning baffle (45) is connected to the upper surface of the supporting main beam (41) between the bearing support plates (44), and the supporting main beam (41) is connected to the upper surface of the supporting main beam (41). One end of the upper surface of the beam (41) is hinged with two oblique supports (43); the bearing support plate (44) includes a hollow bottom plate (61), the upper surface of the bottom plate (61) is open, and a sliding plate (62) is inserted into the opening and slidably connected to the inner wall of the bottom plate (61), and a plurality of equally spaced threaded holes (63) are opened at both ends of the surface of one side of the sliding plate (62) to form a vertical row; the threaded holes (63) are threadedly connected to the first locking bolts (64) provided on the side surface of the bottom plate (61); the top end of the surface of one side of the sliding plate (62) is connected to a protractor (9), and the center of the protractor (9) is connected to a hook (91) and an elastic rope (92), and the elastic rope (92) is hooked and matched with the bearing support plate (44) on the other side; The positioning baffle (45) includes an outer plate (51) of a hollow structure, an inner plate (52) is slidably connected to the inner surface of the outer plate (51), a plurality of corrugated grooves (54) are provided on one side surface of the inner plate (52), and a second locking bolt (55) is provided on one side surface of the outer plate (51) to engage with the corrugated groove (54); The method for installing a supporting device for a vertical shaft pressure steel liner elbow comprises the following steps: S1, the lifting hook (2) lifts the pressure steel lining bend (3) from both ends, and then drops it from the shaft to the bottom elevation of the shaft. According to the predetermined tilt angle, the construction workers use the hand chain hoist hanging above the lifting hook (2) to adjust the angle of the pressure steel lining bend (3) so that it is tilted to the required installation angle; S2, pull the pipe bending quick installation device (4) to the bottom of the pipe bending through the horizontal sliding channel steel (5), and then drive wooden wedges into the horizontal sliding channel steel (5) at both ends of the slider to perform braking positioning to prevent the pipe bending quick installation device (4) from moving during the supporting process; S3, adjust the supporting position of the elbow quick installation device (4), the specific method is as follows: S301, first, according to the position height of the previously installed pipe section, adjust the height of one set of supporting plates (44) on the pipe bend quick installation device (4), lock it with the first locking bolt (64), and complete the height positioning; S302, according to the predetermined tilt angle in S1, the height of another set of supporting plates (44) on the quick installation device for bent pipes (4) is adjusted, and locked by the first locking bolt (64) to complete the angle positioning; when adjusting, the elastic rope (92) on the top of one set of supporting plates (44) is pulled up, hung on the hook (91) on the top of the other set of supporting plates (44) and stretched straight, and at this time, the angle indicated by the elastic rope (92) on the protractor (9) is observed, so that the angle of the tilted surface formed between the two sets of supporting plates (44) can be intuitively known; S303, adjusting the extension height of the outer plate (51) and the inner plate (52) of the positioning baffle (45), locking them by the second locking bolt (55), so that the slope structure at the top of the positioning baffle (45) and the bearing support plate (44) are at the same height position; S4, slowly place the pressure steel lining elbow (3) on the surface of the elbow quick installation device (4) with the support position adjusted by the lifting hook (2), and then hinge the two oblique supports (43) with the stiffening ring on the outer surface of the pressure steel lining elbow (3) to complete the oblique support fixation, and after falling to the support position, fine adjustment and fixation can be carried out; S5, using a winch or hand hoist, to pull the quick installation device (4) loaded with the bent pipe to the installation location, and after the bent pipe is pulled to the installation location, it is welded with the remaining pipe sections; S6, when the pipe segment is installed and welded, there is no need to remove the pipe bend quick installation device (4), and concrete is poured directly together with the pipe bend, so that the device serves as a permanent fixed support for the pipe bend.

2. The supporting device for installing a vertical shaft pressure steel liner elbow according to claim 1, characterized in that: The bearing support plates (44) are provided in no less than two groups.

3. The supporting device for installing a vertical shaft pressure steel liner elbow according to claim 1, characterized in that: One end of the oblique support (43) is hinged to the upper surface of the supporting main beam (41), and the other end is hinged to the stiffening ring on the outer surface of the pressure steel lining elbow (3).

4. The supporting device for installing a vertical shaft pressure steel liner elbow according to claim 1, characterized in that: A ball hinge mechanism (7) is provided at the top of the sliding plate (62), a screw at the bottom end of the ball hinge mechanism (7) is threadedly connected to the top end of the sliding plate (62), and a screw at the top end of the ball hinge mechanism (7) is threadedly connected to the bottom end of the arc support plate (8), and the concave side of the arc support plate (8) faces upward to contact and cooperate with the pressure steel lining elbow (3).

5. The supporting device for installing a vertical shaft pressure steel liner elbow according to claim 1, characterized in that: The top of the inner plate (52) is a slope structure, and a rubber pad (53) is connected to the surface of the slope structure to contact and cooperate with the pressure steel lining elbow (3).

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