An electro-hydraulic slope adjuster for precast concrete T-beams

By employing a mechanically synchronized design for the electro-hydraulic slope adjuster, the complexity and high cost of slope adjustment devices in the construction of precast concrete T-beam bridges in existing technologies have been resolved. This has enabled precise and simplified slope adjustment, adapting to harsh environments and improving construction efficiency and safety.

CN122299800APending Publication Date: 2026-06-30SHAANXI LUOLU EXPRESSWAY CO LTD
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Patent Information

Application Number
CN202610620952.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-08
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing technologies for the construction of precast concrete T-beam bridges suffer from complex, costly, inefficient, and inaccurate slope adjustment systems, and cannot achieve precise adjustment of simplified structures.

Method used

The system employs an electro-hydraulic slope adjuster, which includes a double-layer structure of a bottom plate and a top plate. It utilizes an electro-hydraulic pump and a distributor to drive an electro-hydraulic jack, thereby achieving the deflection of the top plate around the support module. The slope is adjusted through mechanical synchronous movement, which simplifies the system structure and eliminates the need for sensors and programming debugging.

Benefits of technology

It enables precise adjustment of the slope at the ends of the T-beams, simplifies the system structure, reduces costs, improves efficiency and safety, adapts to harsh environments, and avoids loss of precision and extension of construction period.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of bridge construction technology, and in particular to an electro-hydraulic slope adjuster for precast concrete T-beams. The device includes a base plate and a top plate, with a support module and an adjustment module positioned between them. The adjustment module drives the top plate to deflect around the support module. The adjustment module includes an electro-hydraulic pump, a distributor, and several electro-hydraulic jacks, arranged in an array between the base and top plates. The electro-hydraulic pump is connected to the inlet of the distributor, and multiple outlets of the distributor are connected to the electro-hydraulic jacks. The electro-hydraulic pump simultaneously drives multiple electro-hydraulic jacks, and the distributor ensures the synchronous movement of these jacks, driving the top plate to deflect. This invention replaces electronic closed-loop control with mechanical synchronization via a distributor, achieving system simplification, cost reduction, and improved environmental adaptability while maintaining slope adjustment accuracy. It can replace the wedge block process, offers high adjustment efficiency, and improves the protection of construction personnel.
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Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, and in particular to an electro-hydraulic slope adjuster for precast concrete T-beams. Background Technology

[0002] In the construction of precast concrete T-beam bridges with longitudinal slopes, a precise slope needs to be formed at the beam ends to ensure that the supports are horizontally stressed after erection. The traditional method of precast wedge blocks has problems such as low precision, long construction period, and high cost. Developing an efficient and precise beam end slope adjustment device has significant engineering value.

[0003] Existing technologies have disclosed related slope adjustment devices. For example, CN200820136620.8 discloses an electro-hydraulic synchronous jacking system, which uses a displacement sensor in conjunction with a PLC controller to achieve closed-loop control and drive multiple jacks to move synchronously; CN201220315897.3 discloses a PLC multi-point synchronous jacking hydraulic system, which uses a solenoid valve to achieve automatic pressure holding; there are also manual slope adjustment devices that allow manual operation of jacks to adjust the height of the bottom formwork. However, the existing technologies still have the following shortcomings: First, the sensor-PLC control system is complex and costly, requires programming and debugging, and relies on external power, making it unsuitable for harsh construction site environments and difficult to achieve a rotational slope adjustment mechanism that "deflects around the support module"; Second, the solenoid valve pressure-holding scheme requires continuous power supply, resulting in high equipment investment costs; Third, the manual slope adjustment method relies on operational experience, has poor synchronization at both ends, and is inefficient; Fourth, none of the existing solutions adopt an integrated design of "splitter mechanical synchronization + double-layer structure of bottom and top plates + rotational deflection," making it impossible to achieve precise, efficient, and low-cost large-scale T-beam prefabricated slope adjustment while simplifying the structure.

[0004] Therefore, this invention designs an electro-hydraulic slope adjuster for precast concrete T-beams to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide an electro-hydraulic slope adjuster for precast concrete T-beams to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides an electro-hydraulic slope adjuster for precast concrete T-beams, comprising a bottom plate and a top plate arranged correspondingly at the top and bottom, a support module and an adjustment module symmetrically arranged on both sides of the support module are provided between the bottom plate and the top plate, and the adjustment module drives the top plate to deflect around the support module as the center; The adjustment module includes an electric hydraulic pump, a flow divider, and several electric hydraulic jacks. The array of electric hydraulic jacks is arranged between the base plate and the top plate. The electric hydraulic pump is connected to the inlet of the flow divider, and the multiple oil outlets of the flow divider are respectively connected to the electric hydraulic jacks. The electric hydraulic pump is used to drive multiple electric hydraulic jacks simultaneously, and the diverter is used to ensure the synchronous movement of the multiple electric hydraulic jacks and drive the top plate to deflect.

[0007] Preferably, the support module includes a plurality of support columns fixedly to the base plate at equal intervals, the top of each support column is rotatably connected to a support seat, the top of the support seat extends out of the support column and is fixedly connected to the bottom of the top plate.

[0008] Preferably, the bottom end of the electric hydraulic jack is fixedly installed on the top surface of the base plate, and a plurality of electric hydraulic jacks and a plurality of support columns are arranged in parallel. The output end of the electric hydraulic jack is rotatably connected to an adjustment seat, and the adjustment seat is fixedly connected to the bottom end of the top plate.

[0009] Preferably, the regulating module further includes a regulating valve and a quick connector. The regulating valve is installed on the oil supply port of the electro-hydraulic jack, and the branch hydraulic pipe connected to the outlet of the distributor is connected to the regulating valve through the quick connector.

[0010] Preferably, the regulating valve is a manual valve. After the electric hydraulic jack is adjusted to the set position, the oil circuit of the electric hydraulic jack is cut off through the regulating valve, and the connection with the distributor can be disconnected through the quick connector.

[0011] Preferably, the quick connector is a self-sealing, leak-free connector, with the female connector of the quick connector installed on the branch hydraulic pipe and the female connector of the quick connector installed on the regulating valve.

[0012] Preferably, after the electric hydraulic pump is disconnected from the electric hydraulic jack of the current slope adjuster, it can be connected to the electric hydraulic jack of another slope adjuster through the quick connector, so as to realize the cyclic use of one machine for multiple machines.

[0013] Preferably, the electric hydraulic jack and the regulating valve are provided with dustproof and waterproof protective sleeves to adapt to the environment of the concrete precast yard.

[0014] Preferably, the electric hydraulic pump is equipped with a manual switch or a remote control switch for controlling the lifting and lowering action of the electric hydraulic jack, enabling single-person operation.

[0015] Preferably, the electro-hydraulic slope adjuster is installed below the bottom mold of the beam end of the T-beam prefabrication platform to adjust the longitudinal slope of the bottom mold, so that the T-beam itself directly forms the designed longitudinal slope without the need for prefabricated wedge blocks.

[0016] Compared with the prior art, the present invention has the following advantages and technical effects: The present invention discloses an electro-hydraulic slope adjuster for precast concrete T-beams, which adopts a double-layer structure with a bottom plate and a top plate corresponding to each other. A support module and an adjustment module symmetrically arranged on both sides of the support module are set between the two. The adjustment module drives the top plate to deflect around the support module, thereby realizing the precise adjustment of the slope at the end of the T-beam. It is flexible and convenient. Compared with the traditional method of precasting wedge blocks, this application enables the T-beam to directly form the designed longitudinal slope by deflecting the top plate, without the need for precast wedge blocks, thus avoiding the accuracy loss and construction period extension caused by multiple pouring. The adjustment module includes an electric hydraulic pump and a flow divider. The electric hydraulic pump, as the power source, is connected to the inlet of the flow divider. The multiple outlets of the flow divider are connected to multiple electric hydraulic jacks arrayed between the bottom plate and the top plate. The electric hydraulic pump drives all the jacks simultaneously, and the flow divider ensures that the flow rate of each jack is consistent from a hydraulic principle, thereby achieving mechanical synchronous movement. This completely eliminates complex links such as sensors, controllers, and programming debugging, significantly simplifying the system structure, greatly reducing costs, and eliminating the need for continuous external power supply, making it more suitable for the harsh environment of concrete precast yards. The simultaneous driving of multiple jacks by the electric hydraulic pump results in a high synchronization rate, saving manpower, improving efficiency, and enhancing the safety of adjustment. The rotating slope adjustment mechanism of the top plate, which deflects around the support module, ensures that the top plate always rotates around the support module during adjustment, avoiding local stress concentration that may occur with pure lifting adjustment, and ensuring the uniformity of stress on the bottom formwork and structural stability.

[0017] This invention replaces electronic closed-loop control with mechanical synchronization of the diverter, which simplifies the system, reduces costs, and improves environmental adaptability while ensuring slope adjustment accuracy. It can replace the wedge block process, has high adjustment efficiency, and improves the protection of construction personnel. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings: Figure 1 This is an axial view of the electro-hydraulic slope adjuster for precast concrete T-beams according to the present invention; Figure 2 This is a schematic diagram of the adjustment module principle of the present invention; Figure 3This is a schematic diagram of the quick connector of the present invention; In the diagram: 1. Base plate; 2. Top plate; 3. Support module; 4. Adjustment module; 31. Support column; 32. Support seat; 41. Electric hydraulic pump; 42. Diverter; 43. Electric hydraulic jack; 44. Adjustment seat; 45. Adjustment valve; 46. Quick connector; 47. Branch hydraulic pipe; 48. Main hydraulic pipe. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Reference Figures 1 to 3 As shown, this embodiment provides an electro-hydraulic slope adjuster for precast concrete T-beams, including a bottom plate 1 and a top plate 2 arranged correspondingly at the top and bottom. A support module 3 and an adjustment module 4 symmetrically arranged on both sides of the support module 3 are provided between the bottom plate 1 and the top plate 2. The adjustment module 4 drives the top plate 2 to deflect around the support module 3. The adjustment module 4 includes an electric hydraulic pump 41, a flow divider 42, and several electric hydraulic jacks 43. The array of electric hydraulic jacks 43 is arranged between the base plate 1 and the top plate 2. The electric hydraulic pump 41 is connected to the inlet of the flow divider 42, and the multiple oil outlets of the flow divider 42 are respectively connected to the electric hydraulic jacks 43. The electric hydraulic pump 41 is used to drive multiple electric hydraulic jacks 43 simultaneously, and the diverter 42 is used to ensure the synchronous movement of multiple electric hydraulic jacks 43 and drive the top plate 2 to deflect.

[0022] This invention discloses an electro-hydraulic slope adjuster for precast concrete T-beams. It employs a double-layer structure with a bottom plate 1 and a top plate 2 corresponding vertically. A support module 3 and adjusting modules 4 symmetrically arranged on both sides of the support module 3 are positioned between them. The adjusting modules 4 drive the top plate 2 to deflect around the support module 3, thereby achieving precise adjustment of the slope at the T-beam end, offering flexibility and convenience. Compared to the traditional method of precast wedge blocks, this invention allows the T-beam to directly form the designed longitudinal slope by deflecting the top plate 2, eliminating the need for separate precast wedge blocks and avoiding the accuracy loss and construction period extension caused by staged pouring. The adjustment module 4 includes an electric hydraulic pump 41 and a flow divider 42. The electric hydraulic pump 41 serves as a power source and is connected to the inlet of the flow divider 42. The multiple oil outlets of the flow divider 42 are connected to multiple electric hydraulic jacks 43 arrayed between the bottom plate 1 and the top plate 2. The electric hydraulic pump 41 drives all the jacks simultaneously, while the flow divider 42 ensures consistent flow rates for each jack based on hydraulic principles, thereby achieving mechanical synchronous movement. This completely eliminates the need for complex components such as sensors, controllers, and programming debugging, significantly simplifying the system structure, greatly reducing costs, and eliminating the need for continuous external power supply, making it more suitable for the harsh environment of precast concrete yards. The simultaneous driving of multiple jacks by the electric hydraulic pump 41 results in a high synchronization rate, saving manpower, improving efficiency, and enhancing the safety of the adjustment. The rotating slope adjustment mechanism of the top plate 2, which deflects around the support module 3, ensures that the top plate 2 always rotates around the support module 3 during the adjustment process, avoiding local stress concentration that may occur with pure lifting adjustment and ensuring the uniformity of stress on the bottom formwork and structural stability. This invention replaces electronic closed-loop control with mechanical synchronization of the diverter 42, which simplifies the system, reduces costs, and improves environmental adaptability while ensuring slope adjustment accuracy. It can replace the wedge block process, has high adjustment efficiency, and improves the protection of construction personnel.

[0023] In one embodiment of the present invention, during the prefabrication of the beam, the device that can electrically adjust the slope of the prefabricated T-beam end no longer requires prefabricated wedge blocks. The longitudinal slope is formed by the T-beam itself, so that the support of the T-beam is always in a horizontal state during operation, which improves the durability of the bridge. Moreover, the construction is simple, reduces the labor of T-beam prefabrication, and lowers the project cost.

[0024] In one embodiment of the present invention, the electric hydraulic pump 41 is connected to the inlet of the distributor 42 via the main hydraulic pipe 48.

[0025] Further optimizing the design, the support module 3 includes several support columns 31 fixedly to the base plate 1 at equal intervals. A support seat 32 is rotatably connected to the top of each support column 31, and the top of the support seat 32 extends out of the support column 31 and is fixedly connected to the bottom of the top plate 2. The support module 3 consists of multiple support columns 31 fixedly to the base plate 1 at equal intervals. The support columns 31 are connected to the top plate 2 via the support seat 32 rotatably connected to their top ends, providing a reliable fulcrum for rotation of the top plate 2. When the adjustment module 4 drives the top plate 2 to rise and fall, the top plate 2 can rotate smoothly around the support seat 32, avoiding potential jamming or additional stress from the rigid connection. This allows for angle adjustment of the T-beam supported by the top plate 2. The multiple support columns 31 arranged at equal intervals provide uniform support force in the width direction of the top plate 2, preventing local deformation of the top plate 2 when subjected to concrete pouring loads and ensuring the flatness of the T-beam bottom formwork. Furthermore, the top plate 2 maintains a fixed connection with the support seat 32 during deflection, preventing relative displacement and ensuring adjustment accuracy.

[0026] In one embodiment of the present invention, the support column 31 can be raised and lowered manually or automatically and maintained in position, thereby allowing the distance between the top plate 2 and the bottom plate 1 to be adjusted before use, which is applicable to T-beam slope adjustment of different heights.

[0027] Further optimization of the design involves fixing the bottom of the electric hydraulic jack 43 to the top surface of the base plate 1. Several electric hydraulic jacks 43 and several support columns 31 are arranged in parallel. The output end of the electric hydraulic jack 43 is rotatably connected to an adjusting seat 44, which is fixedly connected to the bottom of the top plate 2. The fixed connection between the bottom of the jack and the base plate 1, and the rotatable connection between the output end and the top plate 2 via the adjusting seat 44, allows the jack to adapt to the angle changes caused by the deflection of the top plate 2 during the lifting process, avoiding damage to the piston rod due to lateral forces and extending the service life of the jack. The parallel arrangement of the jack and the support columns 31 makes the force distribution of the entire device more balanced—the support columns 31 bear the vertical pressure, and the jacks provide the lifting force. The two work together, resulting in a compact structure and clear force distribution. The rotatable connection between the adjusting seat 44 and the support seat 32 works together to ensure the degree of freedom of the top plate 2 during the deflection process, realizing the kinematic requirements of deflection centered on the support module 3. The number and spacing of the jacks can be flexibly adjusted according to the size of the T-beam end, exhibiting good adaptability and scalability.

[0028] Further optimizing the design, the adjustment module 4 also includes an adjustment valve 45 and a quick connector 46. The adjustment valve 45 is installed on the oil supply port of the electric hydraulic jack 43, and the branch hydraulic pipe 47 connected to the outlet of the distributor 42 is connected to the adjustment valve 45 via the quick connector 46. The implementation of the adjustment module 4 also relies on the function of the adjustment valve 45 and the quick connector 46. By installing an adjustment valve 45 at the oil supply port of each electric hydraulic jack 43, each jack can independently control the oil circuit. When a jack malfunctions or requires individual adjustment, its adjustment valve 45 can be closed without affecting the operation of other jacks, improving the system's reliability and maintenance convenience. The quick connector 46 allows for quick assembly and disassembly of the hydraulic lines, significantly shortening installation and disassembly time compared to traditional threaded connections, thus improving construction efficiency. The combined design of the adjustment valve 45 and the quick connector 46 facilitates the rapid installation and disassembly of the hydraulic lines, improving the ease of operation of the equipment.

[0029] Further optimizing the design, the regulating valve 45 is selected as a manual valve. After the electric hydraulic jack 43 is adjusted to the set position, the oil circuit of the electric hydraulic jack 43 is cut off through the regulating valve 45, and the connection with the distributor 42 can be disconnected through the quick connector 46. The regulating valve 45 is a manual valve. When the electric hydraulic jack 43 is adjusted to the set position, the oil circuit of the electric hydraulic jack 43 is cut off by manually operating the regulating valve 45, keeping the electric hydraulic jack 43 in the current position. After cutting off the oil circuit, the distributor 42 can be disconnected from the regulating valve 45 through the quick connector 46. The use of manual valves instead of solenoid valves or other types of electrically controlled valves allows the entire device to maintain pressure without continuous power supply. This offers a significant reliability advantage in environments like precast concrete yards where power supply is unstable and dusty. Furthermore, the manual valves are intuitive and easy to operate, requiring no specialized electrical knowledge from construction personnel, thus reducing training costs and lowering the operational threshold. Once the slope is adjusted, closing the valve allows the electric hydraulic pump 41 to be removed, while the electric hydraulic jack 43 maintains its position for an extended period, achieving a mechanical locking function. Even after the electric hydraulic pump 41 is removed, the jack will not slowly descend due to leakage, ensuring accurate slope throughout concrete pouring and curing. After disconnecting via the quick connector 46, the electric hydraulic pump 41 can be moved for slope adjustment operations on other platforms, achieving a "one machine, multiple uses" equipment turnover mode. This significantly reduces the number of hydraulic pumps required for large-scale precasting, saving on equipment investment.

[0030] Further optimizing the design, quick connector 46 is now a self-sealing, leak-free connector. The female connector of quick connector 46 is installed on branch hydraulic pipe 47, and the female connector is installed on regulating valve 45. Quick connector 46 employs a self-sealing, leak-free structure. When the female connector and female connector are connected, the oil circuit remains open, maintaining its smooth flow. When the female connector and female connector are disconnected, the self-sealing structure automatically seals the interface, ensuring that no hydraulic oil leaks into the environment when quick connector 46 is disconnected. This avoids hydraulic oil waste and the hassle of replenishing oil, and also prevents oil contamination of the precast concrete site and T-beam formwork, ensuring a clean construction environment. The configuration of the female connector installed on the branch hydraulic pipe 47 side and the female connector installed on the regulating valve 45 side ensures that both the hydraulic pipe side and the jack side automatically seal after disconnection, preventing the system from needing to be re-vented or replenished due to oil loss. This greatly simplifies the pump station reuse process, allowing operators to safely and cleanly perform pump station transfer operations, improving the working conditions for construction personnel.

[0031] Further optimizing the solution, after the electric hydraulic pump 41 is disconnected from the electric hydraulic jack 43 of the current slope adjuster, it can be connected to the electric hydraulic jack 43 of another slope adjuster via a quick connector 46, enabling one machine to be used in multiple locations in a cycle. After completing the adjustment work of one slope adjuster and disconnecting it, the electric hydraulic pump 41 can be connected to the electric hydraulic jack 43 of another slope adjuster via a quick connector 46 to continue the slope adjustment work of that slope adjuster. This allows one electric hydraulic pump 41 to be used in a cycle among multiple slope adjusters, realizing a "one machine, multiple locations" equipment reuse mode. In large precast beam yards where multiple T-beams are usually precast simultaneously, it is not necessary to configure an independent electric hydraulic pump 41 for each location. Only a small number of pump stations are needed to meet the slope adjustment needs of all locations, significantly reducing equipment procurement costs. The already adjusted electric hydraulic jack 43 achieves pressure holding and locking through a manual valve. After the pump station is removed, the pedestal with its slope already adjusted can stably maintain the slope and will not fail due to the removal of the pump station. The self-sealing and leak-free characteristics of the quick connector 46 ensure that the pump station will not lose hydraulic oil during repeated connection and disconnection, allowing the pump station to be put into use at any time without frequent oil replenishment. This equipment adaptation mode is suitable for large-scale, standardized T-beam prefabrication production, which can significantly improve equipment utilization, shorten pedestal preparation time, and accelerate template turnover.

[0032] To further optimize the design, the electric hydraulic jack 43 and regulating valve 45 are equipped with dustproof and waterproof protective sleeves to adapt to the environment of precast concrete yards. Typical environmental characteristics of precast concrete yards include high dust levels, high humidity, and frequent cement slurry splashes. Exposed hydraulic jack piston rods and regulating valves 45 are prone to wear and tear on seals due to dust ingress or jamming due to cement slurry adhesion. The protective sleeves effectively prevent contaminants from entering, extending the service life of the hydraulic components. The waterproof function of the sleeves allows the device to continue operating normally in rainy weather or when washing the site, improving construction continuity and the device's year-round applicability. No additional energy or manual operation is required; once installed, it provides continuous protection with low maintenance costs. In practical construction applications, it has significant practical value, greatly reducing the failure rate and maintenance frequency caused by hydraulic component contamination, and lowering the total life-cycle cost.

[0033] Further optimizing the design, the electric hydraulic pump 41 is equipped with a manual or remote control switch to control the lifting and lowering movements of the electric hydraulic jack 43, enabling single-person operation. The manual or remote control switch on the electric hydraulic pump 41 allows control of the raising, lowering, and stopping movements of the electric hydraulic jack 43. Operators can directly observe and control the jack's movements from the pump station, conforming to construction site work habits, reducing learning costs, and improving operational convenience and adjustment accuracy. Compared to traditional manual slope adjustment which requires multiple people, this reduces labor intensity and helps maintain the operator's working condition and adjustment accuracy.

[0034] To further optimize the design, an electro-hydraulic slope adjuster is installed below the bottom mold of the T-beam precast platform. This adjuster is used to adjust the longitudinal slope of the bottom mold, allowing the T-beam to directly form the designed longitudinal slope without the need for precast wedges. The slope adjuster, installed below the bottom mold of the T-beam precast platform, changes the longitudinal slope of the bottom mold by adjusting the deflection angle of the top plate 2. After the T-beam is cast and formed on the adjusted bottom mold, the end of the T-beam naturally forms the required longitudinal slope. During erection, the supports directly rest on the bottom surface of the T-beam, eliminating the need for additional precast wedges.

[0035] Based on research and learning of manual precast T-beam slope adjusters, and after improvements, a more practical electric hydraulic slope adjuster was successfully developed and tested on the construction site, receiving positive feedback from construction workers.

[0036] Based on practical experience, this electro-hydraulic slope adjuster has the following advantages: 1. Active / Dynamic Adjustment: Continuous and linear precise control can be achieved by lifting with an electric hydraulic jack 43.

[0037] 2. It significantly shortens the preparation time of the support platform and speeds up the turnover of the template, making it especially suitable for large-scale, standardized prefabrication.

[0038] 3. The qualitative change from "static setting" to "dynamic guarantee" not only enables slope setting but also ensures the accuracy of slope during key construction processes, greatly improving the quality of the completed beam.

[0039] 4. Saves manpower, as one person can operate the slope adjustment.

[0040] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0041] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. An electro-hydraulic slope adjuster for precast concrete T-beams, characterized in that: It includes a bottom plate (1) and a top plate (2) arranged correspondingly at the top and bottom. A support module (3) and an adjustment module (4) symmetrically arranged on both sides of the support module (3) are provided between the bottom plate (1) and the top plate (2). The adjustment module (4) drives the top plate (2) to deflect around the support module (3) as the center. The adjustment module (4) includes an electric hydraulic pump (41), a flow divider (42), and a plurality of electric hydraulic jacks (43). The electric hydraulic jacks (43) are arranged in an array between the base plate (1) and the top plate (2). The electric hydraulic pump (41) is connected to the inlet of the flow divider (42), and the plurality of oil outlets of the flow divider (42) are respectively connected to the electric hydraulic jacks (43). The electric hydraulic pump (41) is used to drive multiple electric hydraulic jacks (43) simultaneously, and the distributor (42) is used to ensure the synchronous movement of multiple electric hydraulic jacks (43) and drive the top plate (2) to deflect.

2. The electro-hydraulic slope adjuster for precast concrete T-beams according to claim 1, characterized in that: The support module (3) includes several support columns (31) fixed at equal intervals on the base plate (1). The top of the support column (31) is rotatably connected to a support seat (32). The top of the support seat (32) extends out of the support column (31) and is fixed to the bottom of the top plate (2).

3. The electro-hydraulic slope adjuster for precast concrete T-beams according to claim 2, characterized in that: The bottom end of the electric hydraulic jack (43) is fixedly installed on the top surface of the base plate (1). Several electric hydraulic jacks (43) and several support columns (31) are arranged in parallel. The output end of the electric hydraulic jack (43) is rotatably connected to an adjustment seat (44). The adjustment seat (44) is fixedly connected to the bottom end of the top plate (2).

4. The electro-hydraulic slope adjuster for precast concrete T-beams according to claim 1, characterized in that: The regulating module (4) also includes a regulating valve (45) and a quick connector (46). The regulating valve (45) is installed on the oil supply port of the electric hydraulic jack (43). The branch hydraulic pipe (47) connected to the outlet of the distributor (42) is connected to the regulating valve (45) through the quick connector (46).

5. The electro-hydraulic slope adjuster for precast concrete T-beams according to claim 4, characterized in that: The regulating valve (45) is selected as a manual valve. After the electric hydraulic jack (43) is adjusted to the set position, the oil circuit of the electric hydraulic jack (43) is cut off through the regulating valve (45), and the connection with the distributor (42) can be disconnected through the quick connector (46).

6. The electro-hydraulic slope adjuster for precast concrete T-beams according to claim 4, characterized in that: The quick connector (46) is a self-sealing, leak-free connector. The female connector of the quick connector (46) is installed on the branch hydraulic pipe (47), and the female connector of the quick connector (46) is installed on the regulating valve (45).

7. The electro-hydraulic slope adjuster for precast concrete T-beams according to claim 5, characterized in that: After the electric hydraulic pump (41) is disconnected from the electric hydraulic jack (43) of the current slope adjuster, it can be connected to the electric hydraulic jack (43) of another slope adjuster through the quick connector (46) to realize the cyclic use of one machine for multiple machines.

8. The electro-hydraulic slope adjuster for precast concrete T-beams according to claim 5, characterized in that: The electric hydraulic jack (43) and the regulating valve (45) are provided with dustproof and waterproof protective sleeves to adapt to the concrete precast yard environment.

9. The electro-hydraulic slope adjuster for precast concrete T-beams according to claim 1, characterized in that: The electric hydraulic pump (41) is equipped with a manual switch or a remote control switch to control the lifting action of the electric hydraulic jack (43) and realize single-person operation.

10. The electro-hydraulic slope adjuster for precast concrete T-beams according to claim 1, characterized in that: The electro-hydraulic slope adjuster is installed below the bottom mold at the beam end of the T-beam precast platform to adjust the longitudinal slope of the bottom mold, so that the T-beam itself directly forms the designed longitudinal slope without the need for precast wedge blocks.

Citation Information

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