A hydraulic climbing formwork device for bridge piers used in high-intensity areas

Abstract

The present invention discloses a hydraulic climbing formwork device for bridge piers used in high-intensity areas, comprising a formwork system, a fixed frame fixed to the pier body, the formwork system located at the steel bar binding cage at the upper end of the pier, a self-locking hydraulic climbing mechanism installed on the fixed frame, and vertical guide rails connected to each side of the pier body via a plurality of anti-fall connecting seats, and these anti-fall connecting seats are divided into two groups and symmetrically arranged on both sides of the vertical guide rails, each anti-fall connecting seat is detachably connected to the outer peripheral surface of the pier, and the self-locking hydraulic climbing mechanism is connected to the vertical guide rails. The present invention realizes stepless adjustment of the height of the formwork system under different requirements, and ensures that the self-locking hydraulic climbing mechanism drives the fixed frame and the formwork system to climb upward. When climbing to a certain height, the self-locking hydraulic climbing mechanism can be controlled to drive the vertical guide rails to move upward in the vertical direction, avoiding manual disassembly and assembly operations and improving safety. The present invention is suitable for the pouring construction of bridge piers.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge pier casting construction, and in particular relates to a bridge pier hydraulic climbing formwork device used in high-intensity areas. Background Art

[0002] At present, during the construction of bridge piers, the steel bar binding cage is used to support the formwork system after the binding is completed, and the pouring operation is carried out after the formwork system is closed. After the pouring is completed, it is cured and demolded after completion. Then, the steel bar binding cage on the upper layer of the bridge pier is tied. After the binding is completed, the formwork system is lifted upward by the hydraulic system. The hydraulic system generally used is a hydraulic cylinder. The hydraulic cylinder is used to lift the formwork system to the upper layer of steel bar binding cage, and then the mold is closed and the above actions are repeated. The height of the existing hydraulic system jacking formwork system is generally a multiple of the stroke of the hydraulic cylinder. The design of its stroke needs to be compatible with the height size of the bridge pier, and it is difficult to adapt to other bridge piers that are not multiples of the hydraulic cylinder stroke. Moreover, when construction is carried out in high-intensity areas, the guide rails below need to be disassembled during the jacking process of the formwork system, and the disassembled guide rails need to be installed above the fixed frame where the hydraulic system is located, and ensure that the lower end of the guide rail is connected to the guide rail at the fixed frame. Since the disassembly and assembly of the guide rails are all done manually, safety accidents are very likely to occur in high-intensity areas. Summary of the Invention

[0003] The present invention provides a hydraulic climbing formwork device for bridge piers used in high-intensity areas, which is used to achieve stepless adjustment of the height of the formwork system under different requirements, and ensure that the self-locking hydraulic climbing mechanism drives the fixed frame and the formwork system to climb upward. After climbing to a certain height, the self-locking hydraulic climbing mechanism can be controlled to drive the vertical guide rail to move upward in the vertical direction, avoiding manual disassembly and assembly operations and improving safety.

[0004] To achieve the above object, the technical solutions adopted by the present invention are as follows:

[0005] A hydraulic climbing formwork device for bridge piers used in high-intensity areas includes a formwork system installed on the upper end of a fixed frame, the fixed frame is fixed to the pier body, the formwork system is located at the steel bar binding cage at the upper end of the pier, a self-locking hydraulic climbing mechanism is installed on the fixed frame, each side surface of the pier body is connected to a vertical guide rail via a plurality of anti-fall connecting seats, and these anti-fall connecting seats are divided into two groups and are symmetrically arranged on both sides of the vertical guide rail, each anti-fall connecting seat is detachably connected to the outer peripheral surface of the pier, and the self-locking hydraulic climbing mechanism is transmission-connected to the vertical guide rail; when the fixed frame is separated from the pier body, the self-locking hydraulic climbing mechanism is driven to move forward, and the self-locking hydraulic climbing mechanism drives the fixed frame and the formwork system thereon to move upward through the transmission connection with the vertical guide rail; when the fixed frame is fixedly connected to the pier body, the self-locking hydraulic climbing mechanism is driven to move in the reverse direction, and the self-locking hydraulic climbing mechanism drives the vertical guide rail to move upward.

[0006] Furthermore, the self-locking hydraulic climbing mechanism includes a plurality of self-locking hydraulic traveling units detachably connected to the fixed frame, the self-locking hydraulic traveling units are arranged at intervals along the vertical direction, and each self-locking hydraulic traveling unit is transmission-connected to the vertical guide rail.

[0007] Furthermore, the vertical guide rail includes a guide rail body, and assembly channels are constructed on both sides of the guide rail body. Each assembly channel extends from one end of the guide rail body to the other end along its length direction. Multiple climbing rods are evenly fixed in each assembly channel, and these climbing rods are evenly arranged along the length direction of the assembly channel.

[0008] Furthermore, the self-locking hydraulic walking unit includes hydraulic motors symmetrically arranged on both sides of the guide rail body, and the two hydraulic motors are connected via a hydraulic telescopic part, and the hydraulic telescopic part is used to drive the two hydraulic motors to move closer to or away from each other; a walking wheel is assembled on the output shaft of each hydraulic motor; when the hydraulic telescopic part drives the two hydraulic motors to move away from each other to a predetermined position, the teeth of the walking wheel are transmission-connected with the climbing rod on the corresponding side; when the hydraulic telescopic part drives the two hydraulic motors to move closer to each other to a predetermined position, the teeth of the walking wheel are locked with the climbing rod on the corresponding side.

[0009] Furthermore, the thickness of the traveling wheel increases radially inward, and a slider is installed on each of the hydraulic motors. The slider is slidably installed on the mounting seat, and the mounting seat is detachably connected to the fixed frame; a guide block with a guide groove is installed on the hydraulic telescopic part, and a guide bar extending vertically is constructed on the guide rail body, and the guide block is slidably connected to the guide bar via the guide groove.

[0010] Furthermore, the hydraulic telescopic part includes an assembly cylinder with end covers detachably connected at both ends, pistons are symmetrically assembled in the assembly cylinder, and the ends of the two pistons away from each other are respectively constructed with drive rods, and one end of each drive rod extends out of the corresponding end cover along the axis of the assembly cylinder and is connected to a hydraulic motor; a hydraulic chamber is formed in the assembly cylinder and between the two pistons, a tension spring is assembled in the hydraulic chamber, the two ends of the tension spring are respectively fixedly connected to the two pistons, and a hydraulic joint connected to the hydraulic chamber is constructed on the assembly cylinder.

[0011] Furthermore, limiting strips are constructed on the inner wall of the assembly cylinder and are evenly arranged along its circumference, each of the limiting strips extending along the axial direction of the assembly cylinder, and a plurality of notches are evenly opened on the outer circumferential surface of the piston, each limiting strip is adapted to the corresponding notch, and limiting flanges are constructed at both axial ends of the hydraulic chamber, each of the limiting flanges extending radially inward along the assembly cylinder, and each of the pistons is assembled in the assembly cylinder and is located between the end cover and the corresponding limiting flange.

[0012] Furthermore, the anti-falling connection seat includes a seat body detachably connected to the pier body, an anti-falling arm is hinged on the seat body, and the upper end of the anti-falling arm supports the corresponding climbing rod.

[0013] Furthermore, the upper end of the anti-fall arm is constructed with a clamping opening, and the climbing rod is clamped in the clamping opening. The side surface of the anti-fall arm close to the guide rail body is constructed into a guide curved surface. When the guide rail body moves upward, the anti-fall arm contacts the corresponding climbing rod through the guide curved surface, and the upper end of the anti-fall arm is rotated toward the outside of the guide rail body to allow the climbing rod to pass through.

[0014] Furthermore, a first limiting portion is formed on the side of the seat body close to the guide rail body, and a second limiting portion is formed on the side of the seat body away from the guide rail body, and an assembly groove is formed between the first limiting portion and the second limiting portion, and the lower end of the anti-fall arm is rotatably installed in the assembly groove through a hinge shaft, and the side surface of the assembly groove close to the guide rail body is a vertical surface, and the side surface of the assembly groove away from the guide rail body is an inclined surface extending outward; an elastic top connection component is provided on the side of the seat body away from the guide rail body, and the elastic top connection component includes a top connection rod that passes through the second limiting portion horizontally and extends into the assembly groove through the inclined surface, and a fixed flange is constructed at one end of the top connection rod away from the assembly groove, and a return spring is mounted on the top connection rod, and the two ends of the return spring are respectively fixedly connected to the fixing flange and the second limiting portion.

[0015] Because the present invention adopts the above-mentioned structure, the technical progress achieved by it compared with the prior art is that: the present invention realizes the overall climbing by installing a self-locking hydraulic climbing mechanism on the fixed frame, that is, the self-locking hydraulic climbing mechanism acts in the forward direction, so that it drives the fixed frame and the formwork system to move upward through the transmission with the vertical guide rail, and the vertical guide rail is subjected to the opposite external force, that is, the vertical guide rail is subjected to the downward force, so that the anti-fall connecting seat supports the vertical guide rail and prevents the vertical guide rail from falling; when the formwork system rises to a certain height, the reinforcing screw can pass through the fixed frame and be connected to the embedded parts on the pier body to achieve the fixation of the fixed frame, and then drive the self-locking hydraulic climbing mechanism to act in the reverse direction, that is, the self-locking hydraulic climbing mechanism gives the vertical guide rail an upward force, so that the vertical guide rail moves upward along the pier body, and in the process of the vertical guide rail moving upward In the embodiment, the anti-fall connecting seats on both sides of the vertical guide rail are activated by the upward thrust and provide a channel for the vertical guide rail to pass through. When the vertical guide rail is displaced to the predetermined position, the self-locking hydraulic climbing mechanism is driven to make the vertical guide rail descend until it is supported by the anti-fall connecting seat. When the formwork system of the present invention is in place, the fixed frame is fixedly connected to the pier body. The self-locking hydraulic climbing mechanism of the present invention is different from the existing hydraulic jacking equipment. It has a stepless climbing height adjustment function, that is, it can be stopped and adjusted at will. In summary, the present invention realizes stepless adjustment of the height of the formwork system under different requirements, and ensures that the self-locking hydraulic climbing mechanism drives the fixed frame and the formwork system to climb upward. After climbing to a certain height, the self-locking hydraulic climbing mechanism can be controlled to drive the vertical guide rail to move upward in the vertical direction, thereby avoiding manual disassembly and assembly operations and improving operation safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0017] In the attached figure:

[0018] Figure 1 Schematic diagram of the structure of an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of a partial structure of an embodiment of the present invention;

[0020] Figure 3 This is a schematic structural diagram of the connection between multiple self-locking hydraulic travel units, vertical guide rails, and anti-fall connection seats according to an embodiment of the present invention;

[0021] Figure 4 This is a partial structural cross-sectional view of a self-locking hydraulic travel unit according to an embodiment of the present invention;

[0022] Figure 5This is a partial structural diagram of the connection between the self-locking hydraulic travel unit, the vertical guide rail and the anti-falling connecting seat in accordance with an embodiment of the present invention without the mounting seat;

[0023] Figure 6 for Figure 5 A top view of the structure;

[0024] Figure 7 This is a schematic structural diagram of the gear teeth of the traveling wheel and the climbing rod in a transmission connection state according to an embodiment of the present invention;

[0025] Figure 8 This is a structural schematic diagram of the gear teeth of the traveling wheel and the climbing rod in a locked state according to an embodiment of the present invention;

[0026] Figure 9 This is a schematic structural diagram of a hydraulic motor connected to another type of travel wheel according to an embodiment of the present invention;

[0027] Figure 10 This is a schematic structural diagram of a hydraulic telescopic member according to an embodiment of the present invention;

[0028] Figure 11 This is a cross-sectional view of the axial structure of a hydraulic telescopic member according to an embodiment of the present invention;

[0029] Figure 12 This is a schematic diagram of the structure of the hydraulic telescopic component after disassembly according to an embodiment of the present invention;

[0030] Figure 13 This is a structural diagram of the connection between the anti-falling connecting seat and the vertical guide rail according to an embodiment of the present invention;

[0031] Figure 14 for Figure 13 A magnified view of the structure of part A in the middle.

[0032] Marked parts: 100-bridge pier, 101-embedded parts, 200-rebar binding cage, 300-formwork system, 400-fixed frame, 401-fixed plate, 402-connecting hole, 403-connecting edge, 500-self-locking hydraulic travel unit, 501-mounting seat, 502-slide, 503-hydraulic motor, 504-output shaft, 505-travel wheel, 5051-wheel body, 5052-gear teeth, 5053-tooth gap, 506-slider, 507-hydraulic telescopic part, 5071-assembly cylinder, 5072-hydraulic cavity, 5073-limiting bar, 5074-limiting flange, 5075-end cover, 5076-driving rod, 5077-piston, 5078-notch, 5079-tension spring, 508-guide block, 509-guide groove, 600-vertical guide rail, 601-guide rail body, 602-assembly channel, 603-climbing rod, 604-guide bar, 700-anti-fall connecting seat, 701-seat body, 702-anti-fall arm, 703-hinge shaft, 704-elastic top connection assembly, 7041-top connection rod, 7042-fixing flange, 7043-return spring, 705-guide curved surface, 706-clamping mouth, 707-fixing hole, 708-first limiting portion, 709-second limiting portion. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0034] The present invention discloses a hydraulic climbing formwork device for bridge piers used in high-intensity areas. Figure 1-14As shown, the structure comprises a fixed frame 400, a formwork system 300, and a self-locking hydraulic climbing mechanism. The formwork system 300 is mounted on the upper end of the fixed frame 400, which can be fixed to the pier 100. The formwork system 300 is located at the rebar binding cage 200 at the upper end of the pier 100. The self-locking hydraulic climbing mechanism of the present invention is mounted on the fixed frame 400. At least one vertical guide rail 600 is mounted on each side of the pier 100. Each vertical guide rail 600 is connected to the pier 100 via a plurality of anti-drop connectors 700. These anti-drop connectors 700 are divided into two groups, symmetrically arranged on either side of the vertical guide rail 600. Each anti-drop connector 700 can be detachably connected to a corresponding outer surface of the pier 100. The self-locking hydraulic climbing mechanism of the present invention is in transmission connection with the vertical guide rails 600. According to the present invention, when the fixed frame 400 is separated from the pier body of the bridge pier 100, the self-locking hydraulic climbing mechanism is driven to move forward, and the self-locking hydraulic climbing mechanism drives the fixed frame 400 and the formwork system 300 thereon to move upward through the transmission connection with the vertical guide rail 600; when the fixed frame 400 is fixedly connected to the pier body of the bridge pier 100, the self-locking hydraulic climbing mechanism is driven to move reversely, and the self-locking hydraulic climbing mechanism drives the vertical guide rail 600 to move upward.When the vertical guide rail 600 is lifted up, the vertical guide rail 600 is lifted up and the vertical guide rail 600 is lifted up, so the vertical guide rail 600 is lifted up and the vertical guide rail 600 is lifted up. The anti-fall connecting seats 700 on both sides of the guide rail 600 are activated by the upward thrust and provide a channel for the vertical guide rail 600 to pass through. When the vertical guide rail 600 is moved to the predetermined position, the self-locking hydraulic climbing mechanism is driven to make the vertical guide rail 600 drop down until it is supported by the anti-fall connecting seat 700; when the formwork system 300 of the present invention is in place, the fixed frame 400 is fixedly connected to the pier body; the self-locking hydraulic climbing mechanism of the present invention is different from the existing hydraulic jacking equipment. It has a stepless climbing height adjustment function, that is, it can be stopped and adjusted at will; in summary, the present invention realizes stepless adjustment of the height of the formwork system 300 under different needs, and ensures that the self-locking hydraulic climbing mechanism drives the fixed frame 400 and the formwork system 300 to climb upward. After climbing to a certain height, the self-locking hydraulic climbing mechanism can be controlled to drive the vertical guide rail 600 to move upward in the vertical direction, avoiding manual disassembly and assembly operations and improving the safety of operations.

[0035] As a preferred embodiment of the present invention, Figure 2-3As shown, the self-locking hydraulic climbing mechanism includes multiple self-locking hydraulic travel units 500, which are detachably connected to a fixed frame 400. Specifically, the fixed frame 400 has fixed plates 401 located on either side of the self-locking hydraulic travel units 500. The fixed plates 401 have connecting holes 402 for the ends of reinforcing screws to pass through. These ends of the reinforcing screws are connected to embedded parts 101 on the pier body. The embedded parts 101 are threaded sleeves, and the reinforcing screws are threadedly connected to the sleeves. A connecting edge 403 is constructed on the side of the fixed plates 401 near the self-locking hydraulic travel units 500. The self-locking hydraulic travel units 500 and the connecting edge 403 are fixedly connected by fastening bolts. The multiple self-locking hydraulic travel units 500 described in this embodiment are spaced apart vertically, and each self-locking hydraulic travel unit 500 is transmission-connected to a vertical guide rail 600. Because these self-locking hydraulic travel units 500 operate synchronously, the fixed frame 400 maintains sufficient power during the climbing process and ensures that the fixed frame 400 rises steadily. Moreover, after rising to the predetermined position, each self-locking hydraulic travel unit 500 is locked with the vertical guide rail 600. In conjunction with the support of the vertical guide rail 600 by the anti-fall connecting seat 700, relative movement between the self-locking hydraulic travel unit 500 and the vertical guide rail 600 is prevented. Moreover, after the fixed frame 400 is connected and fixed to the pier body, the self-locking hydraulic travel unit 500 locks the vertical guide rail 600 to prevent the vertical guide rail 600 from vertical displacement. In this way, the stability of the connection between the vertical guide rail 600 and the self-locking hydraulic travel unit 500 is enhanced, thereby adapting to the pier body construction work of the bridge pier 100 in high-intensity areas.

[0036] As a preferred embodiment of the present invention, Figure 5-6As shown, the vertical guide rail 600 includes a guide rail body 601, and assembly channels 602 are constructed on both sides of the guide rail body 601. Each assembly channel 602 extends from one end of the guide rail body 601 to the other end along its length. A plurality of climbing rods 603 are evenly fixed in each assembly channel 602, and these climbing rods 603 are evenly arranged along the length of the assembly channel 602, so that these climbing rods 603 form a climbing ladder. The specific structure of the self-locking hydraulic walking unit 500 of this embodiment is as follows: the self-locking hydraulic walking unit 500 includes two hydraulic motors 503, which are symmetrically arranged on both sides of the guide rail body 601. A hydraulic telescopic member 507 is provided between the two hydraulic motors 503, and the two output ends of the hydraulic telescopic member 507 are respectively connected to the hydraulic motors 503. The hydraulic telescopic member 507 of this embodiment is used to drive the two hydraulic motors 503 to move closer to or away from each other. In this embodiment, a travel wheel 505 is mounted on the output shaft 504 of each hydraulic motor 503. The travel wheel 505 comprises a wheel body 5051 coaxially connected to the output shaft 504 of the hydraulic motor 503. Gear teeth 5052 are uniformly arranged on the outer peripheral surface of the wheel body 5051 along its circumference, and tooth gaps 5053 are formed between adjacent gear teeth 5052. Figure 7 As shown, when the hydraulic telescopic member 507 drives the two hydraulic motors 503 to move away from each other to a predetermined position, the gear teeth 5052 of the walking wheel 505 are connected to the climbing rod 603 on the corresponding side; Figure 8As shown, when the hydraulic telescopic member 507 drives the two hydraulic motors 503 to approach each other to a predetermined position, the walking wheel 505 moves toward the corresponding climbing rod 603, so that the climbing rod 603 penetrates into the tooth gap 5053, thereby causing the gear teeth 5052 of the walking wheel 505 to be locked with the climbing rod 603 on the corresponding side, that is, when the walking wheel 505 is driven to rotate, it is restricted by the adjacent climbing rod 603, making it unable to rotate. This can fully avoid the relative movement of the vertical guide rail 600 and the self-locking hydraulic walking unit 500, improve the integrity of the connection between the vertical guide rail 600 and the self-locking hydraulic walking unit 500, and make the relative positions of the vertical guide rail 600, the self-locking hydraulic walking unit 500 and the fixed frame 400 stable, thereby adapting to various harsh environments. Because this embodiment achieves climbing by rotating the running wheels 505 on the climbing ladder, the fixed frame 400 and the formwork system 300 thereon can be climbed, thereby achieving stepless (non-stop) climbing of the formwork system 300, which can be stopped as needed. However, existing hydraulic climbing systems drive the fixed frame 400 intermittently, that is, after completing a stroke or the lower part of the hydraulic jacking equipment rises again, and after a stroke, the upper part of the hydraulic jacking equipment climbs again. Therefore, it can be seen that the existing climbing method is a peristaltic method. In contrast, the fixed frame 400 of this embodiment climbs more smoothly, avoiding the impact of pauses on the various components of the equipment, thereby preventing damage to the components and the occurrence of accidents.

[0037] As a preferred embodiment of the present invention, in order to improve the strength of the running wheel 505 so that it can withstand a large external force when locking the vertical guide rail 600, the measures taken are as follows: Figure 9 As shown, the thickness of the running wheel 505 increases radially inward, so that not only can the gear teeth 5052 withstand greater torque when the running wheel 505 rotates and moves on the vertical guide rail 600, but also when the running wheel 505 locks the climbing rod 603, the contact area between the two is increased, and the surface where the tooth gap 5053 is located provides a larger support surface, making the locking of the running wheel 505 on the vertical guide rail 600 more repetitive; and the running wheel 505 adopts this arrangement, its own strength is also correspondingly enhanced, extending its service life. In order to make the two hydraulic motors 503 move in a predetermined direction under the drive of the hydraulic telescopic member 507, the measures taken in this embodiment are as follows: Figure 4As shown, a slider 506 is installed on each hydraulic motor 503, and a slide groove 502 is constructed on the mounting seat 501. The slide groove 502 extends along the horizontal direction of the vertical guide rail 600. The slider 506 of this embodiment is slidably mounted on the mounting seat 501 through the slide groove 502, and the mounting seat 501 is detachably connected to the fixed frame 400. In order to improve the connection performance between the hydraulic telescopic member 507 and the vertical guide rail 600 and further restrict the vertical guide rail 600, thereby ensuring that the vertical guide rail 600 is always in contact with the surface of the pier body, specifically, as shown in FIG. Figure 4 、 6 As shown, a guide block 508 is installed on the hydraulic telescopic part 507, and a guide groove 509 is constructed at one end of the guide block 508 facing the vertical guide rail 600. A guide bar 604 extending in the vertical direction is constructed on the guide rail body 601, and the guide block 508 is slidably connected to the guide bar 604 through the guide groove 509.

[0038] As a preferred embodiment of the present invention, Figure 10-12As shown, the hydraulic telescopic member 507 includes an assembly cylinder 5071 and two driving members, wherein end caps 5075 are detachably connected to the axial ends of the assembly cylinder 5071. The driving member includes a piston 5077 and a driving rod 5076. The pistons 5077 of the two driving members are symmetrically assembled in the assembly cylinder 5071. The ends of the two driving rods 5076 that are close to each other are respectively fixed to the corresponding end faces of the pistons 5077, that is, the driving rods 5076 are fixed to the ends of the pistons 5077 that are away from each other. The ends of the driving rods 5076 that are away from the pistons 5077 extend along the axis of the assembly cylinder 5071 to the corresponding end caps 5075. The end of the driving rod 5076 that extends out of the assembly cylinder 5071 is connected to the corresponding hydraulic motor 503. In this embodiment, a hydraulic chamber 5072 is formed within the assembly cylinder 5071 and between the two pistons 5077. A tension spring 5079 is installed within this hydraulic chamber 5072, with both ends of the tension spring 5079 fixedly connected to the two pistons 5077. A hydraulic joint is constructed on the assembly cylinder 5071 to communicate with the hydraulic chamber 5072. The operating principle of this embodiment is as follows: hydraulic oil enters the hydraulic chamber 5072 through the hydraulic joint, thereby pushing the two pistons 5077 away from each other. This in turn causes the two drive rods 5076 to push the two hydraulic motors 503 away from each other, establishing a transmission connection between the running wheels 505 on the hydraulic motors 503 and the climbing ladder of the vertical guide rail 600, thereby driving the vertical guide rail 600 upward or driving the fixed frame 400 upward. When the hydraulic chamber 5072 is depressurized, the two pistons 5077 gradually return to their original positions under the action of the tension spring 5079, causing the gear teeth 5052 of the running wheels 505 to lock onto the vertical guide rail 600. In order to avoid the tendency of the driving part to rotate in the assembly cylinder 5071, this embodiment adopts the method of constructing limiting strips 5073 uniformly arranged along the circumference of the assembly cylinder 5071 on the inner wall of the assembly cylinder 5071, each limiting strip 5073 extends along the axial direction of the assembly cylinder 5071, and a plurality of notches 5078 are evenly opened on the outer circumference of the piston 5077, and each limiting strip 5073 is adapted to the corresponding notch 5078. In order to limit the extreme positions of the two pistons 5077 approaching each other, this embodiment constructs limiting flanges 5074 at both axial ends of the hydraulic chamber 5072, and each limiting flange 5074 extends radially inward along the assembly cylinder 5071. Each piston 5077 of this embodiment is assembled in the assembly cylinder 5071, and the piston 5077 is located between the corresponding end cover 5075 and the corresponding limiting flange 5074.

[0039] As a preferred embodiment of the present invention, Figure 13-14 As shown, the anti-fall connection seat 700 includes a seat body 701 and an anti-fall arm 702, wherein at least two fixing holes 707 are opened on the seat body 701, and the fastening bolts pass through the fixing holes 707 and are connected to the embedded threaded sleeves on the pier body for fixing the seat body 701, thereby realizing a detachable connection and fixation between the seat body 701 and the pier body. The anti-fall arm 702 of this embodiment is hinged to the seat body 701 through a hinge shaft 703, and the upper end of the anti-fall arm 702 supports the corresponding climbing rod 603. The specific structure of the anti-fall arm 702 is that the upper end of the anti-fall arm 702 is constructed with a clamping opening 706, and the climbing rod 603 is clamped in the clamping opening 706, thereby realizing the support of the anti-fall arm 702 on the climbing rod 603. In this embodiment, the side surface of the anti-fall arm 702 close to the guide rail body 601 is constructed into a guiding curved surface 705. When the guide rail body 601 moves upward, the anti-fall arm 702 contacts the corresponding climbing rod 603 through the guiding curved surface 705, and the upper end of the anti-fall arm 702 rotates toward the outside of the guide rail body 601 to allow the climbing rod 603 to pass through.

[0040] As a preferred embodiment of the present invention, Figure 14As shown, a first limiting portion 708 is formed on the side of the seat body 701 close to the guide rail body 601, and a second limiting portion 709 is formed on the side of the seat body 701 away from the guide rail body 601. An assembly groove is formed between the first limiting portion 708 and the second limiting portion 709, and the lower end of the above-mentioned anti-fall arm 702 is rotatably installed in the assembly groove through the hinge shaft 703. In this embodiment, the side surface of the assembly groove close to the guide rail body 601 is a vertical surface, and the side surface of the assembly groove away from the guide rail body 601 is an inclined surface extending outward; when one side surface of the anti-fall arm 702 contacts the vertical surface, the upper end clamping opening 706 of the anti-fall arm 702 and the crawling rod 603 are vertically aligned with each other; when the other side surface of the anti-fall arm 702 contacts the inclined surface, the upper end clamping opening 706 of the anti-fall arm 702 and the crawling rod 603 are vertically staggered, that is, the upper end of the anti-fall arm 702 is deflected outward to facilitate the passage of the crawling rod 603. In order to enable the anti-fall arm 702 to fully return to its original position in a deflected state, so that the anti-fall arm 702 is in a state where the locking opening 706 is vertically aligned with the climbing rod 603 when it is not in contact with the climbing rod 603, or so that the anti-fall arm 702 is in a state of supporting the climbing rod 603, the measures taken in this embodiment are as follows: an elastic top connection component 704 is provided on the side of the seat body 701 away from the guide rail body 601, and the specific structure of the elastic top connection component 704 is that the elastic top connection component 704 includes a top connection rod 7041 and a return spring 7043, wherein the top connection rod 7041 passes horizontally through the second limiting portion 709, and one end of the top connection rod 7041 passes through the inclined surface and extends into the assembly groove, and a fixing flange 7042 is constructed at the end of the top connection rod 7041 away from the assembly groove. The return spring 7043 of this embodiment is sleeved on the top connecting rod 7041 , and both ends of the return spring 7043 are fixedly connected to the fixing flange 7042 and the second limiting portion 709 respectively.

[0041] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A hydraulic climbing formwork device for bridge piers in high-intensity areas, comprising a formwork system mounted on the upper end of a fixed frame, the fixed frame being fixed to the pier body, and the formwork system being located at the steel bar binding cage at the upper end of the pier, characterized in that: The fixed frame is provided with a self-locking hydraulic climbing mechanism, and each side surface of the pier body is connected to the vertical guide rail via a plurality of anti-fall connecting seats, and these anti-fall connecting seats are divided into two groups and symmetrically arranged on both sides of the vertical guide rail, and each anti-fall connecting seat is detachably connected to the outer peripheral surface of the pier, and the self-locking hydraulic climbing mechanism is transmission-connected to the vertical guide rail; when the fixed frame body is separated from the pier body, the self-locking hydraulic climbing mechanism is driven to move forward, and the self-locking hydraulic climbing mechanism drives the fixed frame body and the formwork system thereon to move upward through the transmission connection with the vertical guide rail; when the fixed frame body is fixedly connected to the pier body, the self-locking hydraulic climbing mechanism is driven to move in the reverse direction, and the self-locking hydraulic climbing mechanism drives the vertical guide rail to move upward; the self-locking hydraulic climbing mechanism includes a plurality of self-locking hydraulic walking units detachably connected to the fixed frame body, and these self-locking hydraulic walking units are arranged at intervals along the vertical direction, and Each locking hydraulic walking unit is transmission-connected to the vertical guide rail; the vertical guide rail includes a guide rail body, and assembly channels are respectively constructed on both sides of the guide rail body, each assembly channel extends from one end of the guide rail body along its length direction to the other end, and multiple climbing rods are evenly fixed in each assembly channel, and these climbing rods are evenly arranged along the length direction of the assembly channel; the self-locking hydraulic walking unit includes a hydraulic motor symmetrically arranged on both sides of the guide rail body, and the two hydraulic motors are connected via a hydraulic telescopic part, and the hydraulic telescopic part is used to drive the two hydraulic motors to approach or move away from each other; a walking wheel is installed on the output shaft of each hydraulic motor; when the hydraulic telescopic part drives the two hydraulic motors away from each other to a predetermined position, the gear teeth of the walking wheel are transmission-connected to the climbing rod on the corresponding side; when the hydraulic telescopic part drives the two hydraulic motors close to each other to a predetermined position, the gear teeth of the walking wheel are locked with the climbing rod on the corresponding side.

2. The hydraulic climbing formwork device for bridge piers used in high-intensity areas according to claim 1 is characterized by: The thickness of the walking wheel increases radially inward, and a slider is installed on each of the hydraulic motors. The slider is slidably installed on the mounting seat, and the mounting seat is detachably connected to the fixed frame; a guide block with a guide groove is installed on the hydraulic telescopic part, and a guide bar extending vertically is constructed on the guide rail body, and the guide block is slidably connected to the guide bar via the guide groove.

3. The hydraulic climbing formwork device for bridge piers used in high-intensity areas according to claim 1 is characterized by: The hydraulic telescopic part includes an assembly cylinder with end covers detachably connected to both ends, pistons are symmetrically assembled in the assembly cylinder, and the ends of the two pistons away from each other are respectively constructed with drive rods, and one end of each drive rod extends out of the corresponding end cover along the axis of the assembly cylinder and is connected to a hydraulic motor; a hydraulic chamber is formed in the assembly cylinder and between the two pistons, and a tension spring is assembled in the hydraulic chamber, and the two ends of the tension spring are respectively fixedly connected to the two pistons, and a hydraulic joint connected to the hydraulic chamber is constructed on the assembly cylinder.

4. The hydraulic climbing formwork device for bridge piers used in high-intensity areas according to claim 3 is characterized by: Limiting strips are uniformly arranged along the circumference of the assembly cylinder on the inner wall thereof, and each of the limiting strips extends along the axial direction of the assembly cylinder. A plurality of notches are uniformly provided on the outer circumferential surface of the piston, and each limiting strip is adapted to the corresponding notch. Limiting flanges are respectively constructed at the axial ends of the hydraulic chamber, and each of the limiting flanges extends radially inwardly along the assembly cylinder. Each of the pistons is assembled in the assembly cylinder and is located between the end cover and the corresponding limiting flange.

5. The hydraulic climbing formwork device for bridge piers used in high-intensity areas according to claim 1 is characterized by: The anti-falling connection seat includes a seat body detachably connected to the pier body, an anti-falling arm is hinged on the seat body, and the upper end of the anti-falling arm supports the corresponding climbing rod.

6. The hydraulic climbing formwork device for bridge piers used in high-intensity areas according to claim 5 is characterized by: The upper end of the anti-fall arm is configured with a clamping opening, and the climbing rod is clamped in the clamping opening. The side surface of the anti-fall arm close to the guide rail body is configured as a guiding curved surface. When the guide rail body moves upward, the anti-fall arm contacts the corresponding climbing rod through the guiding curved surface, and the upper end of the anti-fall arm is rotated toward the outside of the guide rail body to allow the climbing rod to pass through.

7. The hydraulic climbing formwork device for bridge piers used in high-intensity areas according to claim 6 is characterized by: A first limiting portion is formed on the side of the seat body close to the guide rail body, and a second limiting portion is formed on the side of the seat body away from the guide rail body, and an assembly groove is formed between the first limiting portion and the second limiting portion, and the lower end of the anti-fall arm is rotatably installed in the assembly groove through a hinge shaft, and the side surface of the assembly groove close to the guide rail body is a vertical surface, and the side surface of the assembly groove away from the guide rail body is an inclined surface extending outward; an elastic top connection component is provided on the side of the seat body away from the guide rail body, and the elastic top connection component includes a top connection rod that passes through the second limiting portion horizontally and extends into the assembly groove through the inclined surface, and a fixed flange is constructed at one end of the top connection rod away from the assembly groove, and a return spring is mounted on the top connection rod, and the two ends of the return spring are respectively fixedly connected to the fixing flange and the second limiting portion.

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