Column type pier automatic climbing device

Abstract

The utility model provides an automatic climbing device for a column type pier. The automatic climbing device comprises a climbing frame, a hydraulic driving system and a working platform, the climbing frame is composed of an upper hoop and a lower hoop which can be opened and closed, and the hydraulic driving system is used for connecting the upper hoop and the lower hoop and driving the upper hoop and the lower hoop to alternately lock a pier and climb along the pier; the working platform is fixedly arranged at the bottom of the lower hoop and is used for bearing construction equipment and personnel; locking devices are arranged at the opening positions of the upper hoop and the lower hoop. The device is applied to column type pier capping beam construction, the overhead working risk can be reduced through ground installation, the construction efficiency is improved, and the construction safety is improved through the scheme of the upper hoop, the lower hoop and the pressure sensor.

Description

Technical Field

[0001] This utility model relates to the field of construction equipment technology, specifically to an automatic climbing device for column-type bridge piers. Background Technology

[0002] With the rapid advancement of transportation infrastructure construction, the construction of cap beams is gradually developing towards high piers and complex structures. Traditional construction methods include full-span scaffolding, pre-reserved hole steel insertion, pre-embedded steel brackets, and traditional clamping.

[0003] The full-span scaffolding method uses a full-span scaffolding system to support the cap beam platform, formwork, and cap beam, but it has disadvantages such as high requirements for the foundation, long construction period, and large initial investment.

[0004] The method of inserting steel sections into pre-drilled holes requires pre-drilling holes in the pier column and using through-hole steel sections to support the load. However, the holes need to be repaired later, and it is still difficult to make them consistent with the original pier surface after repair. The construction period is relatively long.

[0005] The method of pre-embedded steel brackets requires pre-embedding connecting plates on the pier column to install the brackets. The brackets bear the load, but they also face the problem of later repair of the pier surface. In addition, the investment in pre-embedded parts is large and the construction period is long.

[0006] Traditional clamping method relies on the friction of clamping the pier column to bear the load. Rubber pads and geotextiles need to be placed between the clamp and the pier column to enhance the friction. The operation is cumbersome. At the same time, there is also the possibility that the clamp will slip and shift due to the worker not tightening the connecting bolts properly, which will cause the cap beam to shift or be damaged.

[0007] Furthermore, the latter three methods all require high-altitude support installation, beam platform and formwork hoisting, which presents challenges in operation and low safety. Utility Model Content

[0008] The purpose of this utility model is to provide an automatic climbing device for column-type bridge piers. This utility model is applied to the construction of cap beams for column-type bridge piers. Ground installation can reduce the risk of high-altitude operations and improve construction efficiency. The upper and lower double clamps and pressure sensors are used to improve construction safety.

[0009] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0010] An automatic climbing device for column-type bridge piers includes a climbing frame, a hydraulic drive system, and a working platform;

[0011] The climbing frame consists of an openable upper clamp and a lower clamp. The hydraulic drive system is used to connect the upper clamp and the lower clamp, and to drive the upper clamp and the lower clamp to alternately lock the pier and climb along the pier. The working platform is fixedly set at the bottom of the lower clamp to support construction equipment and personnel. Locking devices are provided at the opening positions of the upper clamp and the lower clamp.

[0012] Furthermore, the drive system includes a pump station and lifting cylinders and opening / closing cylinders connected to the pump station. The lifting cylinders are evenly distributed around the circumference of the climbing frame, and both ends of the lifting cylinders are connected to the upper clamp and the lower clamp, respectively. The upper and lower clamps are driven to move alternately by the extension and retraction of the lifting cylinders. The opening / closing cylinders are used to drive the upper and lower clamps to open or close.

[0013] Furthermore, the working platform includes platform A, platform B, platform C, movable platform, and platform bottom support. The platform bottom support is connected to the bottom surface of the lower clamp and is used to support platform A, platform B, and platform C. The movable platform is bolted to both ends of platform A. Gaps are left between the movable platform, platform B, and platform C.

[0014] Furthermore, platforms A, B, C, and the activity platform are all equipped with walking boards and guardrails.

[0015] Furthermore, the lifting cylinder has a built-in displacement sensor for real-time monitoring of its movement.

[0016] Furthermore, a level sensor is also installed on the work platform.

[0017] Furthermore, the pump station is fixed in the middle of the working platform, and the pump station is connected to the hydraulic through-hole jack via oil pipes.

[0018] Furthermore, the upper clamp and the lower clamp have the same structure, and both include a three-lobed integrated clamp, the opening and closing cylinder and the locking device;

[0019] The three-lobed integrated clamp is mainly composed of module A, module B and module C, with module B and module C respectively hinged to both sides of module A.

[0020] The cylinder body of the opening and closing cylinder is hinged to module A, and the telescopic end is hinged to modules B and C. The opening and closing cylinder is used to drive modules B and C to rotate around the hinge point to open or close the three-lobed integrated clamp. The locking device is used to lock modules B and C a second time.

[0021] Furthermore, the locking device includes:

[0022] The tie rod has a threaded end and a spherical end;

[0023] A hydraulic through-hole jack, wherein the pull rod passes through the hydraulic through-hole jack, and the hydraulic through-hole jack achieves temporary hydraulic locking through the pull rod; the pull rod passes through module B and module C, and the pressure sensor is located between module C and the ball head of the pull rod;

[0024] The nut and pressure sensor are used to achieve mechanical locking by tightening the nut after hydraulic locking, and the locking force is monitored in real time by the pressure sensor.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] This invention utilizes two clamps, one upper and one lower, to grip the bridge pier. The static friction generated between the clamps and the pier overcomes the weight of the cap beam and related equipment. A power device alternately locks and pushes the beam, achieving a step-by-step climbing motion. The double clamp design improves the reliability of cap beam construction. This automatic climbing device is applied to the construction of cap beams for column-type bridge piers. Ground installation reduces the risks of working at heights and improves construction efficiency. The use of double clamps and pressure sensors enhances construction safety. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0029] Figure 2 This utility model Figure 1 Top view.

[0030] Figure 3 This is a schematic diagram of the overall structure of the locking device of this utility model.

[0031] Figure 4 This is a schematic diagram of the overall structure of the jack pad of this utility model.

[0032] Figure 5 This is a schematic diagram of the overall structure of the sensor pad of this utility model.

[0033] Figure 6 This is a schematic diagram of the overall structure of the pull rod of this utility model.

[0034] Figure 7 This is a schematic diagram of the overall structure of the end nut of this utility model.

[0035] Figure 8 This is the closed state of the three-lobed integrated clamp of this utility model.

[0036] Figure 9 This is the open state of the three-lobed integrated clamp of this utility model.

[0037] Figure 10 This is a schematic diagram of the overall structure of module A of this utility model.

[0038] Figure 11 This utility model Figure 10 A three-dimensional image.

[0039] Figure 12 This is a schematic diagram of the overall structure of module B of this utility model.

[0040] Figure 13 This is a schematic diagram of the overall structure of module C of this utility model.

[0041] Figure 14 This utility model Figure 13 A three-dimensional image.

[0042] Figure 15 This is a perspective view of the three-lobed integrated clamp of this utility model.

[0043] Figure 16 This is a schematic diagram of the utility model in use.

[0044] Figure label:

[0045] 1. Three-lobed integrated clamp;

[0046] 11A module, 111 polyurethane board A, 112 panel A, 113 hinged ear plate A, 114 opening and closing ear plate A, 115 lifting cylinder ear plate A, 116 horizontal plate A, 117 vertical plate A.

[0047] 12B Module, 122 Panel B, 123 Hinge Ear Plate B, 124 Opening and Closing Cylinder Ear Plate B, 125 Lifting Cylinder Ear Plate B, 126 Horizontal Plate B, 127 Vertical Plate B, 128 Jack Mounting Sleeve, 129 Vertical Connecting Plate B, 121 Polyurethane Plate B.

[0048] 13C module, 132 panel C, 133 hinged lug C, 134 opening and closing cylinder lug C, 135 lifting cylinder lug C, 136 horizontal plate C, 137 vertical plate C, 138 vertical connecting plate C, 1391 pressure sensor mounting cylinder, 131 polyurethane plate C, 139 pressure sensor sleeve, 1392 sleeve cover plate;

[0049] 2 Fasteners, 3 Opening and closing cylinders, 4 Locking devices, 21 Hinge pins, 22 Piers;

[0050] 101 Climbing frame, 1011 Upper clamp, 1012 Lower clamp, 102 Working platform, 1021A platform, 1022B platform, 1023C platform, 1024 Movable platform, 1025 Platform bottom support, 103 Drive system, 1031 Pump station, 1032 Lifting cylinder, 105 Control system;

[0051] 1041 Pull rod, 1042 Nut, 1043 Jack washer, 1044 End nut, 1045 Pressure sensor, 1046 Sensor washer, 1047 Hydraulic through-hole jack, 33 Spherical surface. Detailed Implementation

[0052] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0053] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0055] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0056] In this embodiment of the invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0057] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0058] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0059] Example 1

[0060] See Figures 1-6 This embodiment discloses an automatic climbing device for column-type bridge piers, including a climbing frame 101, a hydraulic drive system 103, and a working platform 102;

[0061] The climbing frame 101 consists of an openable upper clamp 1011 and a lower clamp 1012. The hydraulic drive system 103 is used to connect the upper clamp 1011 and the lower clamp 1012, and drives the upper clamp 1011 and the lower clamp 1012 to alternately lock the pier and climb along the pier (pier column 22). The working platform 102 is fixedly set at the bottom of the lower clamp 1012 and is used to support construction equipment and personnel. Locking devices 4 are provided at the opening positions of the upper clamp 1011 and the lower clamp 1012.

[0062] Furthermore, the drive system 103 includes a pump station 1031 and a lifting cylinder 1032 and an opening / closing cylinder 3 connected to the pump station 1031. The lifting cylinders 1032 are evenly distributed around the circumference of the climbing frame 101, and the two ends of the lifting cylinders 1032 are respectively connected to the upper clamp 1011 and the lower clamp 1012. The lifting cylinders 1032 extend and retract to drive the upper and lower clamps 1012 to move alternately. The opening / closing cylinder 3 is used to drive the upper clamp 1011 and the lower clamp 1012 to open or close.

[0063] Furthermore, the work platform 102 includes platform A 1021, platform B 1022, platform C 1023, movable platform 1024, and platform bottom support 1025. Platform bottom support 1025 is connected to the bottom surface of lower clamp 1012 and is used to support platform A 1021, platform B 1022, and platform C 1023. Movable platform 1024 is bolted to both ends of platform A 1021. Gaps are left between movable platform 1024, platform B 1022, and platform C 1023.

[0064] Furthermore, platforms A1021, B1022, C1023, and activity platform 1024 are all equipped with walking boards and guardrails.

[0065] Furthermore, the lifting cylinder 1032 has a built-in displacement sensor for real-time monitoring of its movement.

[0066] Furthermore, a level sensor is also installed on the work platform 102.

[0067] Furthermore, the pump station 1031 is fixed in the middle of the working platform 102, and the pump station 1031 is connected to the hydraulic through-hole jack 1047 through an oil pipe.

[0068] Furthermore, the upper clamp 1011 and the lower clamp 1012 have the same structure and both include a three-lobed integrated clamp 1, the opening and closing hydraulic cylinder 3 and the locking device 4;

[0069] The three-lobed integrated clamp 1 is mainly composed of module A, module B and module C, with module B and module C respectively hinged to both sides of module A.

[0070] The cylinder body of the opening and closing cylinder 3 is hinged to module A, and the telescopic end is hinged to modules B and C. The opening and closing cylinder 3 is used to drive modules B and C to rotate around the hinge point to open or close the three-lobed integrated clamp. The locking device 4 is used to lock modules B and C a second time.

[0071] Further, see Figure 3 The locking device 4 includes:

[0072] The tie rod 1041 has a threaded rod at one end and a spherical head at the other end.

[0073] A hydraulic through-hole jack 1047 is provided, and a pull rod 1041 passes through the hydraulic through-hole jack 1047. The hydraulic through-hole jack 1047 is temporarily hydraulically locked through the pull rod 1041. The pull rod 1041 passes through module B 12 and module C 13, and a pressure sensor 1045 is located between module C 13 and the spherical head of the pull rod 1041.

[0074] Nut 1042 and pressure sensor 1045 are used. Nut 1042 is threadedly engaged with pull rod 1041. It is used to achieve mechanical locking by tightening nut 1042 after hydraulic locking, and the locking force is monitored in real time by pressure sensor 1045.

[0075] Furthermore, an end nut 1044 is provided at the end of the pull rod 1041, and a jack washer 1043 is provided between the hydraulic through-hole jack 1047 and the end nut 1044.

[0076] In actual use, the hydraulic through-hole jack 1047 is fixedly installed on module B 12, and the pull rod 1041 passes through the hydraulic through-hole jack 1047 and is connected to the end nut 1044; thus, the nut 1042 can be used to achieve mechanical locking, and at the same time, the hydraulic through-hole jack 1047 drives the pull rod 1041 to move after it is activated.

[0077] This invention utilizes two clamps, one upper and one lower, to grip the bridge pier. The static friction generated between the clamps and the pier overcomes the weight of the cap beam and related equipment. A power device alternately locks and pushes the beam to achieve step-by-step climbing. The use of the double clamps improves the reliability of cap beam construction. This automatic climbing device is applied to the construction of cap beams for column-type bridge piers. Ground installation reduces the risks of working at heights and improves construction efficiency. The use of double clamps and a pressure sensor (1045) enhances construction safety.

[0078] To facilitate a better understanding of this invention by those skilled in the art, the following detailed description is provided in conjunction with specific implementation examples.

[0079] In this embodiment, the climbing frame 101 consists of an upper clamp 1011 and a lower clamp 1012. The upper clamp 1011 and the lower clamp 1012 have the same structure and adopt a three-lobed opening and closing. The connecting plates of the upper clamp 1011 and the lower clamp 1012 are both provided with holes, and they can be connected together by fasteners during hoisting and transportation. The upper and lower clamps 1012 are responsible for gripping the pier to generate friction force, thereby bearing the load.

[0080] Among them, the upper clamp 1011 and the lower clamp 1012 have the same structure, and the specific structure is as follows:

[0081] See Figures 8-15 It includes a three-lobed integrated clamp 1, an opening and closing hydraulic cylinder 3, and a locking device 4.

[0082] The three-lobed integrated clamp 1 is composed of three independent parts, namely module A 11, module B 12, and module C 13;

[0083] Modules B12 and C13 are hinged to Module A11, and the opening and closing positions of the clamp are completed by the movement of Modules B12 and C13.

[0084] To increase the friction between the clamp and the pier 22, polyurethane strips are attached to the panel and secured with bolts. Considering potential deviations in the outer diameter of the pier, the polyurethane strips (rubber or other composite materials) are compressed and deformed during the clamping process to fill gaps, resulting in a larger and tighter contact area between the clamp and the pier. The bottom of the opening / closing cylinder 3 is mounted on module A 11, with its telescopic ends mounted on modules B 12 and C 13 respectively. During operation, the opening / closing cylinder 3 remains fixed in module A 11, and its extension and retraction drive modules B 12 and C 13 to open and close.

[0085] Furthermore, polyurethane strips are installed on the panel to increase the friction between the clamp and the pier column 22.

[0086] The locking device 4 employs a combination of hydraulic and mechanical locking. Once the clamp reaches the designated working position, the hydraulic locking switches to mechanical locking. The locking device 4 includes a pressure sensor to monitor the tension force.

[0087] In practice:

[0088] Reference Figures 8-15 The clamp of the climbing device described in this application will be further explained.

[0089] The specific structure of Module A11 is as follows:

[0090] See Figure 10 Module A 11 is welded together from panel A112, hinge ear plate A113, opening and closing ear plate A114, lifting cylinder ear plate A115, horizontal plate A116, and vertical plate A117. Polyurethane plate A111 is connected to the panel by fastener 2 bolts.

[0091] The specific structure of Module B12 is as follows:

[0092] See Figure 12Module B 12 is welded together from panel B122, hinge ear plate B123, opening / closing cylinder ear plate B124, lifting cylinder ear plate B125, horizontal plate B126, vertical plate B127, jack mounting sleeve 128, and vertical connecting plate B129. Polyurethane plate B121 is connected to the panel by fastener bolts. Jack mounting sleeve 128 has threaded holes for set screws to be installed to secure the hydraulic through-hole jack. The vertical connecting plate has holes larger than the tie rod for the tie rod to pass through. The hole through which the opening and closing cylinder lug B124 is hinged to the opening and closing cylinder 3 is an elongated hole. When the locking device 4 is tightened, module B12 and module C13 will rotate slightly inward. After the opening and closing cylinder 3 extends to its full position, it will retract slightly, so that its hinge pin 21 is in the middle of the elongated hole. This elongated hole can ensure that there is swing space between the hinge pin 21 of the opening and closing cylinder 3 and the cylinder 3, thereby preventing module B12 and module C13 from being unable to rotate slightly due to being tightened by the opening and closing cylinder 3.

[0093] The specific structure of Module C13 is as follows:

[0094] See Figure 13 The pressure sensor sleeve 139 is constructed by welding together a panel C132, a hinged lug plate C133, an opening / closing cylinder lug plate C134, a lifting cylinder lug plate C135, a horizontal plate C136, a vertical plate C137, a vertical connecting plate C138, and a pressure sensor mounting sleeve 1391. The polyurethane plate C131 is bolted to the panel. The pressure sensor sleeve 139 consists of the pressure sensor mounting sleeve 1391 and a sleeve cover plate 1392. The pressure sensor mounting sleeve 1391 is welded to the vertical connecting plate C138, and the sleeve cover plate 1392 is bolted to the sensor mounting sleeve. The vertical connecting plate C138 has a hole larger than the pull rod for the pull rod to pass through. The hole where the opening and closing cylinder ear plate C134 is hinged to the opening and closing cylinder 3 is an elongated hole. When the locking device 4 is tightened, module B 12 and module C 13 will rotate slightly inward. After the opening and closing cylinder 3 extends to its full position, it will retract slightly, so that its hinge pin 21 is in the middle of the elongated hole. This elongated hole can ensure that there is swing space between the hinge pin 21 of the opening and closing cylinder 3, thereby avoiding the opening and closing cylinder 3 from tightening and causing module B 12 and module C 13 to be unable to rotate slightly.

[0095] The clamp consists of a three-lobed integrated clamp 1 (module A 11, module B 12, module C 13), fasteners (including hinge pin 21 of the opening and closing cylinder 3 and hinge pin 21 shaft of module A, B, C, and C 13), opening and closing cylinder 3, and locking device 4.

[0096] In the working state, module A 11 is initially held firmly against the pier 22 and remains stationary. Modules B 12 and C 13 are hinged to module A 11, with hinge pins 21 used at the hinge points. The cylinder body of the opening and closing cylinder 3 is hinged to module A 11 at the cylinder body end, and the telescopic ends are hinged to modules B 12 and C 13 respectively.

[0097] During operation, the opening and closing hydraulic cylinder 3 extends and retracts, driving the B module 12 and C module 13 to open and close the mold.

[0098] The clamp closing process is as follows:

[0099] The clamp is divided into three integrated sections (Module A 11, Module B 12, and Module C 13). Module A 11 remains stationary, while Modules B 12 and C 13 are hinged to Module A 11. The opening and closing of the clamp is accomplished by the extension and retraction of the hydraulic cylinder 3. To ensure a more secure clamping grip on the pier 22, the friction of the contact surfaces needs to be increased; therefore, polyurethane panels are attached to the panels of Modules A 11, B 12, and C 13. After the clamp is closed, Modules B 12 and C 13 are locked using a locking device 4. The locking device 4 has both hydraulic and mechanical locking functions. During the ascent or descent of the climbing device, hydraulic locking can be achieved using a through-hole hydraulic jack; after the climbing device reaches its position, the hydraulic locking is converted to mechanical locking using a tie rod nut, thus maximizing the reliability and safety of the climbing device construction. This clamp features a simple structure, reliable locking, and good opening and closing effect.

[0100] In practical use, the work platform 102 consists of platform A 1021, platform B 1022, platform C 1023, movable platform 1024, and platform bottom support 1025. The platform bottom support 1025 is connected to the bottom surface of the lower clamp 1012 via fasteners to support platform A 1021, platform B 1022, and platform C 1023. The movable platform 1024 is bolted to both ends of platform A 1021. Gaps are provided between movable platforms 1024, platform B 1022, and platform C 1023 to prevent interference caused by displacement when the clamp is tightened and loosened. All work platforms 102 are equipped with walkways and guardrails for personnel operation and maintenance.

[0101] The drive system 103 consists of a pump station 1031, a lifting cylinder 1032, and an opening / closing cylinder 3. Both the lifting cylinder 1032 and the opening / closing cylinder 3 are connected to the pump station 1031. The pump station 1031 is bolted to platform A 1021 and is located in the middle to balance the weight of the hydraulic through-hole jack 1047 and the control system 105 on the opposite side of the pump station 1031, keeping the center of gravity of the entire climbing device close to the axis of the pier column to reduce structural tilting caused by uneven weight distribution.

[0102] Pump station 1031 provides hydraulic power. Lifting cylinder 1032 has built-in displacement sensors evenly distributed along its circumference and is hinged to lower clamp 1012 via trunnions. The lugs at the end of the cylinder rod are hinged to upper clamp 1011 and lower clamp 1012. The extension and retraction of its cylinder rod drives the clamp to move up and down. The lifting cylinder serves as the fulcrum for the clamp's movement and also constrains its direction. Opening and closing cylinder 3 is installed on upper clamp 1011 and lower clamp 1012. After the upper and lower clamps 1012 are connected, the extension and retraction of opening and closing cylinder 3 drives the clamps to open and close. The opening and closing angle of the clamps is adjustable.

[0103] Locking devices 4 are installed at the openings of the upper and lower clamps 1012, respectively. A nut 1042, a jack washer 1043, an end nut 1044, a pressure sensor 1045, and a sensor washer 1046 are connected in series by a pull rod 1041. Locking devices 4 use a hydraulic through-hole jack 1047 to extend the pull rod 1041 and tighten the clamps, achieving temporary clamping of the pier. For long-term locking, in the temporary clamped state, the nut 1042 is turned, causing it to press tightly against the upper clamp 1011 and the lower clamp 1012, achieving mechanical locking. The hydraulic through-hole jack 1047 is connected to the pump station 1031 via hydraulic oil pipes, and is responsible for providing clamping force to the pier.

[0104] Among them, the tie rod 1041 has a threaded rod at one end and a spherical head at the other end.

[0105] The jack washer 1043, end nut 1044, and sensor washer 1046 all have a spherical surface 33. The jack washer 1043 is fitted onto the telescopic cylinder rod of the hydraulic through-hole jack 1047. The spherical surface 33 of the end nut 1044 mates with the spherical surface 33 of the jack washer 1043. The sensor washer 1046 is fitted onto the pressure sensor 1045. The spherical surface 33 of the sensor washer 1046 mates with the spherical surface 33 of the pull rod 1041. The spherical surface 33 serves to ensure constant surface contact, avoiding line contact and point contact.

[0106] Pump station 1031 is connected to control system 105. Pressure sensor 1045 is connected to control system 105. Control system 105 monitors pressure signal from pressure sensor 1045 in real time to calculate tension force and prevent tension force from falling below the limit value, thus ensuring safety.

[0107] The control system 105 controls the start and stop of the pump station 1031 and the solenoid valves of all other cylinders (lifting cylinder 1032, opening and closing cylinder 3). It also receives displacement sensor signals from the lifting cylinder 1032, pressure sensor signals from the tensioning device 1045, and horizontal sensor signals from the platform mounted on the cap beam. Real-time monitoring of the lifting cylinder 1032's displacement signal controls the synchronous lifting of the root cylinders. Monitoring the horizontal sensor signals from the platform controls the rhythm and speed synchronization of the climbing devices on the two piers during the climbing process. This application does not involve improvements to the method; detection via sensors and control of components via the control system 105 employ existing control methods, which will not be elaborated upon here.

[0108] The process of installing this utility model on the pier is as follows:

[0109] Except for the movable platform 1024, the level sensor, and the locking device 4 except for the pressure sensor 1045 and the hydraulic through-hole jack 1047, the climbing device is in a disassembled state, while the rest has been installed as a whole.

[0110] The upper and lower clamps 1012 are connected together by fasteners. The opening and closing cylinder 3 extends and retracts to open the clamps. The climbing device in the open state is lifted by a lifting device and brought close to the pier. When it contacts the pier, the opening and closing cylinder 3 extends to allow the clamps to rotate and surround the pier. After that, the remaining components are installed. All of these are ground operations with few installation parts. Then, the cap beam platform and formwork are hoisted onto the top of the climbing device. This is a low-altitude hoisting operation, which is less risky and more efficient than traditional high-altitude hoisting operations using clamps.

[0111] The climbing process is as follows:

[0112] The hydraulic through-hole jack 1047 of the lower clamp 1012 is pushed out and hydraulically locked to the pier column through the locking device 4. The hydraulic through-hole jack 1047 of the upper clamp 1011 is in a depressurized and contracted state. The upper clamp 1011 surrounds the pier column but is in a loose state without clamping force.

[0113] The lifting cylinder 1032 extends, pushing the upper clamp 1011 to move upward along the pier column;

[0114] After the upper clamp 1011 is in place, the hydraulic through jack 1047 of the upper clamp 1011 pushes out and locks the pier column hydraulically through the locking device 4.

[0115] After the upper clamp 1011 is locked, the locking device 4 of the lower clamp 1012 is released;

[0116] The lifting cylinder 1032 retracts, pulling the lower clamp 1012 and its connected platform and device to climb upward along the pier.

[0117] The system controls the alternating locking of the upper clamp 1011 and lower clamp 1012 to achieve automatic climbing. Furthermore, the posture of the climbing device is adjusted in real time based on signals from displacement and level sensors to achieve synchronous climbing. The reverse is true for descent.

[0118] Before pouring the cap beam:

[0119] After reaching the top of the pier, with the lower clamp 1012 hydraulically locked, manually adjust the position of the upper clamp 1011 to ensure that the cap beam formwork meets the elevation value of the cap beam.

[0120] After the cap beam formwork is in place, the upper clamp 1011 is hydraulically locked, the lower clamp 1012 is loosened, and the lower clamp 1012 is pulled up to be close to the upper clamp 1011.

[0121] Tighten the upper clamp 1011 and the lower clamp 1012 respectively.

[0122] The nut 1042 of the locking device 4 is used to achieve mechanical locking, after which the pump station 1031 can be shut down.

[0123] The upper clamp 1011 is sufficient to bear the load during the pouring of the cap beam, while the lower clamp 1012 provides safety redundancy. The system also monitors the signal of the pressure sensor 1045 in real time. If the pressure drops to the lower limit due to various reasons, the hydraulic jack can be automatically activated to replenish the pressure and notify the construction workers to continue tightening the nut 1042. This multi-faceted approach ensures the safety and quality of the cap beam during pouring.

[0124] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0125] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic climbing device for column-type bridge piers, characterized in that, Includes climbing frame, hydraulic drive system and work platform; The climbing frame consists of an openable upper clamp and a lower clamp. The hydraulic drive system is used to connect the upper clamp and the lower clamp, and to drive the upper clamp and the lower clamp to alternately lock the pier and climb along the pier. The working platform is fixedly set at the bottom of the lower clamp to support construction equipment and personnel. Locking devices are provided at the opening positions of the upper clamp and the lower clamp.

2. The automatic climbing device for column-type bridge piers according to claim 1, characterized in that: The drive system includes a pump station and lifting cylinders and opening / closing cylinders connected to the pump station. The lifting cylinders are evenly distributed around the circumference of the climbing frame, and both ends of the lifting cylinders are connected to the upper clamp and the lower clamp, respectively. The upper and lower clamps are driven to move alternately by the extension and retraction of the lifting cylinders. The opening / closing cylinders are used to drive the upper and lower clamps to open or close.

3. The automatic climbing device for column-type bridge piers according to claim 1, characterized in that: The working platform includes platform A, platform B, platform C, movable platform, and platform bottom support. The platform bottom support is connected to the bottom surface of the lower clamp and is used to support platform A, platform B, and platform C. The movable platform is bolted to both ends of platform A. There are gaps between the movable platform, platform B, and platform C.

4. The automatic climbing device for column-type bridge piers according to claim 2, characterized in that: Platforms A, B, C, and the activity platform are all equipped with walking boards and guardrails.

5. The automatic climbing device for column-type bridge piers according to claim 2, characterized in that: The lifting cylinder has a built-in displacement sensor for real-time monitoring of its movement.

6. The automatic climbing device for column-type bridge piers according to claim 1, characterized in that: The work platform is also equipped with a level sensor.

7. The automatic climbing device for column-type bridge piers according to claim 2, characterized in that: The pump station is fixed in the middle of the working platform and is connected to the hydraulic through-hole jack via oil pipes.

8. The automatic climbing device for column-type bridge piers according to claim 2, characterized in that: The upper clamp and the lower clamp have the same structure, and both include a three-lobed integrated clamp, the opening and closing hydraulic cylinder and the locking device; The three-lobed integrated clamp is mainly composed of module A, module B and module C, with module B and module C respectively hinged to both sides of module A. The cylinder body of the opening and closing cylinder is hinged to module A, and the telescopic end is hinged to modules B and C. The opening and closing cylinder is used to drive modules B and C to rotate around the hinge point to open or close the three-lobed integrated clamp. The locking device is used to lock modules B and C a second time.

9. The automatic climbing device for column-type bridge piers according to claim 8, characterized in that: The locking device includes: The tie rod has a threaded end and a spherical end; A hydraulic through-hole jack, wherein the pull rod passes through the hydraulic through-hole jack, and the hydraulic through-hole jack achieves temporary hydraulic locking through the pull rod; the pull rod passes through module B and module C, and the pressure sensor is located between module C and the ball head of the pull rod; The nut and pressure sensor are used to achieve mechanical locking by tightening the nut after hydraulic locking, and the locking force is monitored in real time by the pressure sensor.

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