Bridge multi-pier-column hydraulic climbing formwork device capable of climbing synchronously

Abstract

The invention provides a bridge multi-pier-column hydraulic climbing formwork device capable of climbing synchronously, and relates to the technical field of hydraulic climbing formworks. The creeping formwork device comprises two supporting frames arranged in pairs, at least two molds are arranged between the two supporting frames, a connecting frame is arranged between the two molds, and supporting mechanisms used for supporting the molds are arranged between the connecting frame and the supporting frames. Driving mechanisms used for driving the supporting mechanisms to move in the vertical direction are arranged in the supporting frames; according to the structure, pier body construction can be completed section by section during pier column pouring, the construction efficiency is improved, at least two pier columns can be constructed at the same time through the at least two molds arranged on the two supporting frames, it is guaranteed that the construction process and the construction progress of the two pier columns are kept consistent, and it is guaranteed that the construction quality of the pier columns is kept consistent.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic climbing formwork, and in particular to a hydraulic climbing formwork device for bridges with multiple piers capable of climbing synchronously. Background Art

[0002] The structure at the bottom of the bridge that supports the bridge is usually the pier. The pier generally includes a pier seat, a pier body and a cap. For some viaducts, the pier height is as high as several dozen meters. In order to improve the bearing capacity of the pier, the pier body often adopts a cylindrical solid concrete structure, and multiple parallel piers are required to be set at the same position of the bridge deck to support a certain part of it to ensure the stability of the bridge deck.

[0003] At present, during the construction of high bridge piers, a hydraulic self-climbing formwork mechanism is generally used to construct a single pier one by one. During construction, after the workers complete the construction of the pier seat one by one at the construction site, they arrange the steel skeleton on the pier seat according to the design thickness of the pier, and then install the outer formwork in the hydraulic self-climbing formwork mechanism on the outer periphery of the pier seat, and then pour concrete in the cavity surrounded by the outer formwork, and then complete the construction of the pier body section by section; the above structure is used to construct the piers one by one, and the equipment structure around a single pier is complex, and many supporting structures are required; in the subsequent construction process, when the construction of the pier body is completed section by section, the hydraulic self-climbing formwork mechanism needs to be adjusted again after it is lifted again to support it again, resulting in the problem of difficulty in supporting the outer formwork at a high position; and as the height of the pier body increases, its support structure is difficult to ensure that the joints of the outer formwork are effectively sealed, and the above structure causes the construction efficiency of multiple piers to be unable to be improved, and the construction progress is slow. Summary of the invention

[0004] The object of the present invention is to provide a hydraulic climbing formwork device for bridges with multiple piers that can climb synchronously, which can solve the problems raised by the above-mentioned background technology in view of the shortcomings of the prior art.

[0005] The technical solution of the present invention is achieved in this way:

[0006] The present invention provides a hydraulic climbing formwork device for bridges with multiple piers that can climb synchronously, comprising two support frames arranged in pairs, at least two molds being arranged between the two support frames, a connecting frame being arranged between the two molds, a supporting mechanism for supporting the molds being arranged between the connecting frame and the support frames, and a driving mechanism for driving the supporting mechanism to move in a vertical direction being arranged in the support frames.

[0007] In some technical schemes of the present invention, the mold includes two outer templates arranged in pairs, which are cylindrical when spliced ​​together. Both sides of the outer templates are provided with positioning parts along their axial direction. When the two outer templates are spliced ​​together, the two positioning parts located at the ends of the two outer templates and opposite to each other are concave-convex matched.

[0008] In some technical schemes of the present invention, the supporting mechanism includes two mounting frames arranged in pairs, any one of the mounting frames is slidably arranged in the supporting frame, and the other mounting frame is connected to the connecting frame. The mounting frames are each provided with a mounting opening, and two first limiting arms are symmetrically arranged on the side wall of the mounting frame with the mounting opening as the axis of symmetry, and two second limiting arms are symmetrically arranged on the side wall of the mounting frame with the first limiting arm as the axis of symmetry, the two first limiting arms are respectively hinged to two outer templates, and the second limiting arms are each provided with a locking groove adapted to the positioning member, and a driving component for controlling the synchronous movement of the first limiting arm and the second limiting arm is provided in the mounting opening.

[0009] In some technical solutions of the present invention, the driving assembly includes a hydraulic push rod arranged in the mounting port, a mounting seat is provided on the telescopic end of the hydraulic push rod, and a plurality of push rods hinged to the first limit arm or the second limit arm are arranged around the mounting seat.

[0010] In some technical solutions of the present invention, a displacement seat is installed on the outer arc surface of the outer template, a guide groove is opened on the side wall of the displacement seat, and the free end of the first limiting arm is slidably disposed in the guide groove.

[0011] In some technical schemes of the present invention, the driving mechanism includes a bracket, a mounting groove is opened on the side wall of the support frame, the bracket is installed in the mounting groove, the bracket is connected to the mounting frame on the same side of the support frame, the top of the bracket is rotatably provided with two rotating arms, a mounting seat is installed on the rotating arm, a limit gear is installed on the mounting seat, two racks are provided in the mounting groove and are respectively engaged with the limit gears, a driving member for driving the rotating arm to make a circular motion is provided on the bracket, and a locking mechanism is provided on the bracket to lock it in the mounting groove.

[0012] In some technical solutions of the present invention, the locking mechanism includes a connecting rod rotatably arranged in the middle part of the bracket, a limiting plate is provided on the free end of the connecting rod, a locking arm structure hinged to the connecting rod is provided in the bracket, an arc-shaped limiting surface is provided on the outer wall of the limiting plate, and the limiting surface abuts against the inner wall of the mounting groove.

[0013] In some technical solutions of the present invention, the locking arm structure is a hydraulic oil telescopic rod.

[0014] In some technical solutions of the present invention, a plurality of tooth grooves adapted to the rack are formed on the limiting surface.

[0015] In some technical solutions of the present invention, a guide channel is provided on the mounting frame mounted on the connecting frame, and a guide column is passed through the guide channel.

[0016] Compared with the prior art, the present invention has at least the following advantages or beneficial effects:

[0017] A connecting frame is provided between the molds, and the connecting frame is used to ensure the stability of the mold when it runs between the two support frames; a supporting mechanism for supporting the mold is provided between the connecting frame and the support frame, and is used to constrain the mold to ensure that when pouring concrete in the cavity surrounded by the mold, there will be no leakage or other problems, thereby improving the casting quality of the pier; and the supporting mechanism can also serve the purpose of opening and closing the mold, and a driving mechanism for driving the supporting mechanism to move in a vertical direction is provided in the support frame, so that when pouring the pier, the construction of the pier body can be completed section by section, thereby speeding up the construction efficiency, and at least two molds provided on the two support frames can be used to construct at least two piers at the same time, ensuring that the construction process and construction progress of the two piers are consistent, and ensuring that the construction quality of the piers is consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a side view structural schematic diagram of the present invention;

[0021] Figure 3 It is a schematic diagram of the combination of the driving mechanism in the present invention;

[0022] Figure 4 It is a schematic diagram of the installation structure of the support mechanism in the present invention;

[0023] Figure 5 It is a schematic diagram of the top view of the supporting mechanism in the present invention.

[0024] Icons: 1. Support frame; 2. Mold; 3. Mounting frame; 4. Guide column; 5. Connecting frame; 6. First limit arm; 7. Second limit arm; 8. Alignment member; 9. Hydraulic push rod; 10. Bracket; 11. Rack; 12. Mounting seat; 13. Limit gear; 14. Rotating arm; 15. Limit plate; 16. Connecting rod; 17. Locking arm structure; 18. Push rod; 19. Displacement seat. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example

[0028] Please refer to Figure 1-Figure 5 shown.

[0029] The present invention provides a hydraulic climbing formwork device for bridges with multiple piers capable of climbing synchronously, such as Figure 1 , Figure 2 As shown, it includes two supporting frames 1 arranged in pairs, and the bottoms of the two supporting frames 1 are welded with supporting bases that are integrally formed to improve the stability of the supporting frames 1 standing on the ground, and the supporting bases are fixed to the foundation surface by bolts. Before the construction of multiple piers of the bridge is completed, the supporting frames 1 are prevented from shaking, which causes the problem that the alignment accuracy of at least two molds 2 installed between the two supporting frames 1 cannot be guaranteed; a connecting frame 5 is provided between the two molds 2, and the connecting frame 5 is used to ensure the stability of the mold 2 when it runs between the two supporting frames 1; there are connecting frames 5 and the supporting frames 1 for supporting the The supporting mechanism of the mold 2 is used to constrain the mold 2 to ensure that when pouring concrete in the cavity surrounded by the mold 2, there will be no leakage or other problems, thereby improving the casting quality of the pier column; and the supporting mechanism can also serve the purpose of opening and closing the mold. The supporting frame 1 is provided with a driving mechanism for driving the supporting mechanism to move in a vertical direction, so that when pouring the pier column, the construction of the pier body can be completed section by section, which speeds up the construction efficiency. At least two molds 2 set on the two supporting frames 1 can be used to construct at least two piers at the same time, ensuring that the construction process and construction progress of the two piers are consistent, and ensuring that the construction quality of the pier columns remains consistent.

[0030] In some technical schemes of the present invention, the mold 2 includes two outer templates arranged in pairs, the cross-section of the outer template is semicircular, the semicircular shell is made of wear-resistant steel, and a plurality of arc-shaped reinforcing ribs are arranged on the outer circumferential wall of the outer template along its axial direction. The two outer templates are spliced ​​and enclosed to form a cylindrical shape. Both sides of the outer template are provided with positioning pieces 8, and the positioning pieces 8 are in the shape of long strips. The positioning pieces 8 and the two side ends of the outer template are integrally formed by welding, and the positioning pieces 8 are not easy to be on the outer template. The deformation can also enhance the overall rigidity of the outer formwork. When the two outer formworks are spliced, the two positioning pieces 8 respectively located at the ends of the two outer formworks and opposite to each other are matched with each other in a concave-convex manner, that is, a groove with a rectangular cross section is opened on the positioning piece 8 located on one of the outer formworks, and the groove is opened along the extension direction of the positioning piece 8; a convex strip with a rectangular cross section is arranged on the positioning piece 8 located on the other outer formwork, and the convex strip is embedded in the groove to ensure that when pouring concrete in the cavity surrounded by the mold 2, there will be no leakage and other problems, thereby improving the casting quality of the pier column.

[0031] In some technical schemes of the present invention, the supporting mechanism includes two mounting frames 3 arranged in pairs, the mounting frames 3 are frame structures, and their cross-sections are rectangular. Any one of the mounting frames 3 is slidably arranged in the supporting frame 1, and a channel with a rectangular cross-section is provided on the side wall of the supporting frame 1. A part of the mounting frame 3 is embedded in the channel and slides in the vertical direction in the channel. When the channel contacts the mounting frame 3, the friction between the two is small. The other mounting frame 3 is fixedly connected to the connecting frame 5 by bolts. A mounting opening is provided on each of the mounting frames 3. Two first limit arms 6 are symmetrically provided on the side wall of the mounting frame 3 with the mounting opening as the axis of symmetry, and the first limit arms 6 are symmetrically provided with the first limit arms 6 on the side wall of the mounting frame 3. A limit arm 6 is hinged to the outer wall of the mounting frame 3, and the two first limit arms 6 are arranged on the outer wall of the mounting frame 3 in the horizontal direction. Two second limit arms 7 are symmetrically arranged on the side wall of the mounting frame 3 with the first limit arm 6 as the symmetry axis. The two second limit arms 7 are arranged on the outer wall of the mounting frame 3 in the vertical direction. The two first limit arms 6 are respectively hinged to the outer walls of the two outer templates. The free ends of the second limit arms 7 are provided with locking grooves adapted to the alignment members 8. The groove width of the locking groove is the width of the two relatively arranged alignment members 8 after being fitted together. A drive component for controlling the synchronous movement of the first limit arm 6 and the second limit arm 7 is provided in the mounting opening.

[0032] In some technical schemes of the present invention, the driving assembly includes a hydraulic push rod 9 arranged in the mounting port, the hydraulic push rod 9 is fixed in the mounting port through a clamping seat, a mounting seat 12 is fixed on the telescopic end of the hydraulic push rod 9 by bolts, and a plurality of push rods 18 are arranged around the mounting seat 12, which are respectively hinged to the first limit arm 6 or the second limit arm 7, and the push rod 18 is hinged to the outer wall of the mounting seat 12 through a pin shaft.

[0033] In some technical schemes of the present invention, a displacement seat 19 is installed on the outer arc surface of the outer template, the reverse extension line of the displacement seat 19 is tangent to the circle where the outer template is located, and the displacement seat 19 is welded to the outer side wall of the outer template. A guide groove is provided on the side wall of the displacement seat 19 away from the outer template, and the guide groove is wedge-shaped. A wedge block is provided at the free end of the first limiting arm 6, and the wedge block is slidably arranged in the guide groove. In this way, the first limiting arm 6 can be prevented from slipping in the displacement seat 19, thereby improving the flexibility of the movement of the two.

[0034] The working principle of the support structure is as follows: when a section of the pier is cast and the concrete is solidified, the telescopic end of the hydraulic push rod 9 arranged on the mounting frame 3 will pull the mounting seat 12 and gradually move toward the mounting frame 3. At this time, the hydraulic push rod 9 will force the first limit arm 6 and the second limit arm 7 to rotate on the mounting frame 3 through the mounting seat 12 and the push rod 18, and the free ends thereof will move away from the mold 2. During the above movement, the locking groove on the second limit arm 7 is first disengaged from the two closed alignment members 8, and the two closed alignment members 8 are unlocked; the free end of the first limit arm 6 then slides in the displacement seat 19 under the traction of the hydraulic push rod 9, and applies an outward pulling force to the outer template, so that the two outer templates move away from each other, forcing the two mutually closed outer templates to separate, thereby realizing the demoulding of the outer template from the cast pier, and facilitating the next operation; when the above structure is operated in the opposite way, the two outer templates can be closed again to form a casting space for the casting of the pier body on the next side.

[0035] In some technical solutions of the present invention, the driving mechanism includes a bracket 10, a mounting groove is provided on the side wall of the support frame 1, the bracket 10 is installed in the mounting groove, the bracket 10 is connected to the mounting frame 3 on the same side of the support frame 1 by bolts, and the top of the bracket 10 is provided with two rotating arms 14 through a pin shaft rotation, and a mounting seat 12 is installed on the rotating arm 14, and a limit gear 13 is fixedly installed on the mounting seat 12, and two racks 11 are provided in the mounting groove, which are respectively meshed with the limit gear 13, and the racks 11 are embedded in the two opposite side walls of the mounting groove. Preferably, in the installation A rack groove adapted to the groove is provided on the side wall opposite to the groove, and the rack 11 is embedded in the rack groove, and when the limit gear 13 is engaged with the rack 11, a part of the limit gear 13 is embedded in the rack groove. The bracket 10 is provided with a driving member for driving the rotating arm 14 to make a circular motion. The driving motor is a high-power motor with a reducer and is connected to the rotating arm 14. The bracket 10 is provided with a locking mechanism to lock it in the installation groove, which is used to prevent the above-mentioned structure from suddenly slipping in the support frame 1, affecting the construction progress of the structure. In serious cases, it will also affect the piers that have been cast, causing damage to their structural safety.

[0036] In some technical schemes of the present invention, the locking mechanism includes a connecting rod 16 rotatably arranged in the middle part of the bracket 10 through a pin shaft, and a limit plate 15 is integrally formed on the free end of the connecting rod 16. A locking arm structure 17 hinged to the connecting rod 16 is provided in the bracket 10. The locking arm structure 17 has compression capability, and an arc-shaped limit surface is provided on the outer wall of the limit plate 15. The limit surface abuts against the inner wall of the mounting groove, which can increase the friction between the limit plate 15 and the mounting groove, thereby improving the locking capability of the present structure.

[0037] In some technical solutions of the present invention, the locking arm structure 17 is a hydraulic oil telescopic rod, which has self-compression capability and requires active pressure relief by an operator so that the telescopic end can be fully retracted and placed in the body of the hydraulic telescopic rod.

[0038] In some technical solutions of the present invention, a plurality of tooth grooves adapted to the rack 11 are provided on the limiting surface to improve the locking ability of the two.

[0039] The process of the driving mechanism and the locking mechanism working together is as follows: the rotating arm 14 is driven by the driving member to drive the limiting gear 13 connected to the rotating arm 14 to make an eccentric movement on the top of the bracket 10, so that the limiting gear 13 periodically engages with the rack 11 in a clockwise direction to lift the mounting frame 3 connected to the bracket 10 to a certain height, so that the lifting height of the mold is controllable and adjustable, and the pier body of the pier column can be protected; when the limiting gear 13 periodically engages with the rack 11 in a clockwise direction to lift the mounting frame 3 connected to the bracket 10 to a certain height, the limiting plate 15 integrally formed with the free end of the connecting rod 16 in the bracket 10 moves vertically under the traction of the above structure. The connecting rod 16 moves upward, and the tooth grooves on the limit surface are embedded in the tooth blocks of the rack 11 to improve the locking ability of the two. The locking arm structure 17 is set to apply an oblique upward thrust to the connecting rod 16 to prevent the connecting rod 16 set in the bracket 10 from rotating freely, and make the limit plate 15 and the tooth blocks of the rack 11 fit more closely; and when the limit plate 15 integrally formed with the free end of the connecting rod 16 in the bracket 10 moves upward in the vertical direction under the traction of the above structure, the locking arm structure 17 is set to apply an oblique upward thrust to the connecting rod 16, forcing the limit plate 15 to disengage from the tooth blocks of the rack 11 more quickly, thereby avoiding interference between the two.

[0040] In some technical solutions of the present invention, a guide channel is provided on the mounting frame 3 mounted on the connecting frame 5, and a guide column 4 is provided in the guide channel. The guide column 4 provides auxiliary support for the mounting frame 3 and guides the structure to reciprocate in the vertical direction to maintain the stability of the structure.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hydraulic climbing formwork device for bridges with multiple piers capable of climbing synchronously, characterized in that: The invention comprises two supporting frames (1) arranged in pairs, at least two moulds (2) being arranged between the two supporting frames (1), a connecting frame (5) being arranged between the two moulds (2), a supporting mechanism for supporting the moulds (2) being arranged between the connecting frame (5) and the supporting frames (1), and a driving mechanism for driving the supporting mechanism to move in a vertical direction being arranged inside the supporting frames (1).

2. A synchronously climbing bridge multi-pier hydraulic climbing formwork device according to claim 1, characterized in that: The mold (2) comprises two outer mold plates arranged in pairs, the two outer mold plates are cylindrical when spliced ​​together, and two aligning pieces (8) are provided on both sides of the outer mold plates. When the two outer mold plates are spliced ​​together, the two aligning pieces (8) are respectively located at the ends of the two outer mold plates and are opposite to each other and are concave-convexly matched.

3. The hydraulic climbing formwork device for bridges with multiple piers capable of synchronous climbing according to claim 2 is characterized in that: The support mechanism comprises two mounting frames (3) arranged in pairs and two second limiting arms (7), any one of the mounting frames (3) is slidably arranged in the support frame (1), and the other mounting frame (3) is connected to the connecting frame (5), and the mounting frames (3) are each provided with a mounting opening, and two first limiting arms (6) are symmetrically arranged on the side wall of the mounting frame (3) with the mounting opening as a symmetry axis, and two second limiting arms (7) are symmetrically arranged on the side wall of the mounting frame (3) with the first limiting arms (6) as a symmetry axis, and the two first limiting arms (6) are respectively hinged to two outer templates, and the second limiting arms (7) are each provided with a locking groove adapted to the alignment member (8), and a driving component for controlling the synchronous movement of the first limiting arms (6) and the second limiting arms (7) is provided in the mounting opening.

4. The hydraulic climbing formwork device for bridges with multiple piers capable of synchronous climbing according to claim 3 is characterized in that: The driving assembly comprises a hydraulic push rod (9) arranged in the mounting opening, a mounting seat (12) being provided on the telescopic end of the hydraulic push rod (9), and a plurality of push rods (18) respectively hinged to the first limiting arm (6) or the second limiting arm (7) being provided around the mounting seat (12).

5. The hydraulic climbing formwork device for bridges with multiple piers capable of synchronous climbing according to claim 3 is characterized in that: A displacement seat (19) is installed on the outer arc surface of the outer template, a guide groove is provided on the side wall of the displacement seat (19), and the free end of the first limiting arm (6) is slidably arranged in the guide groove.

6. The hydraulic climbing formwork device for bridges with multiple piers capable of synchronous climbing according to claim 3 is characterized in that: The driving mechanism comprises a bracket (10), a mounting groove is provided on the side wall of the support frame (1), the bracket (10) is installed in the mounting groove, the bracket (10) is connected to the mounting frame (3) on the same side of the support frame (1), two rotating arms (14) are rotatably provided on the top of the bracket (10), a mounting seat (12) is installed on the rotating arm (14), a limit gear (13) is installed on the mounting seat (12), two racks (11) are provided in the mounting groove and are respectively engaged with the limit gear (13), a driving member for driving the rotating arm (14) to make a circular motion is provided on the bracket (10), and a locking mechanism for locking the rotating arm (14) in the mounting groove is provided on the bracket (10).

7. The hydraulic climbing formwork device for bridges with multiple piers capable of synchronous climbing according to claim 6 is characterized in that: The locking mechanism comprises a connecting rod (16) rotatably arranged in the middle of the bracket (10), a limiting plate (15) is provided on the free end of the connecting rod (16), a locking arm structure (17) hinged to the connecting rod (16) is provided in the bracket (10), and an arc-shaped limiting surface is provided on the outer side wall of the limiting plate (15), and the limiting surface abuts against the inner wall of the mounting groove.

8. The hydraulic climbing formwork device for bridges with multiple piers capable of synchronous climbing according to claim 7 is characterized in that: The locking arm structure (17) is a hydraulic oil telescopic rod.

9. The hydraulic climbing formwork device for bridges with multiple piers capable of synchronous climbing according to claim 7 is characterized in that: The limiting surface is provided with a plurality of tooth grooves adapted to the rack (11).

10. The hydraulic climbing formwork device for bridges with multiple piers capable of synchronous climbing according to claim 3 is characterized in that: A guide channel is provided on the mounting frame (3) mounted on the connecting frame (5), and a guide column (4) is inserted into the guide channel.

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