Simple hinge type slope adjusting device for precast beam slab
By using arc-shaped hinge seats and lifting components in the bridge prefabricated beam slope adjuster, the problems of load concentration and adjustment difficulty in the prior art are solved, and load dispersion and adjustment accuracy are improved.
Patent Information
- Application Number
- CN202420585198.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-25
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-03-25
AI Technical Summary
The middle part of the existing bridge prefabricated beam slope adjuster is hinged with triangle plates, resulting in concentrated loads. The use of multiple jacks increases the quality of the equipment and the difficulty of adjustment, and poor adjustment accuracy.
Design a simple hinged slope adjuster, by setting an arc hinge between the two pressure-bearing plates for surface contact and hinge. The arc hinge can be filled with concrete to enhance the pressure bearing capacity, and adjust the inclination direction through the hoisting assembly. and angle, reduce the number of jacking components to reduce adjustment difficulty and improve accuracy.
The load is dispersed through the surface contact of the arc-shaped hinge seat, which reduces the design requirements of the hoisting assembly, simplifies the adjustment process, and improves the adjustment accuracy and service life.
Smart Images
Figure CN222290544U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bridge engineering, in particular to a simple hinged slope adjuster for prefabricated beams and slabs. Background Art
[0002] During the manufacturing process of prefabricated bridge beams, slope adjusters are mostly used to adjust the longitudinal and transverse slopes. The usual slope adjuster includes two upper and lower pressure plates, such as the technical content disclosed in the Chinese utility model patent with publication number CN214362900U. The two pressure plates are hinged by a triangular plate, and the left and right sides of the triangular plate are tightened by jacks to adjust the height of both sides.
[0003] The above slope regulator structure has the following problems:
[0004] 1. The middle part of the slope adjuster is connected to the upper and lower pressure plates by a triangular plate hinge. The hinge can only be regarded as point contact or line contact. The small contact area leads to load concentration and unreasonable force mode, which affects the service life.
[0005] 2. The use of multiple jacks not only increases the overall quality of the equipment, but also increases the difficulty of adjustment and poor adjustment accuracy. Utility Model Content
[0006] In view of the defects in the prior art, the utility model provides a simple hinged slope adjuster for prefabricated beams and slabs, which at least solves the technical problem of unreasonable force-bearing mode of the prior slope adjuster.
[0007] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:
[0008] A simple hinged slope adjuster for prefabricated beams and slabs comprises a bottom pressure plate and a top pressure plate; an arc-shaped cylinder is arranged on the top surface of the bottom pressure plate, and sealing plates are respectively arranged at both ends of the arc-shaped cylinder to enclose the bottom pressure plate to form an arc-shaped hinge seat; an arc-shaped limiting plate is arranged on the bottom surface of the top pressure plate to fit with the outer wall of the arc-shaped cylinder, and side limiting plates are respectively arranged at both ends of the arc-shaped limiting plate to accommodate the arc-shaped hinge seat; a jacking assembly is also arranged on one axial side of the arc-shaped hinge seat, and the bottom end of the jacking assembly is fixedly connected to the bottom pressure plate, and the top end of the jacking assembly abuts against the bottom surface of the top pressure plate.
[0009] Optionally, the bottom surface of the top pressure plate is further provided with two limit rods which are respectively parallel to the axis of the arc-shaped hinge seat, and the top end of the jacking assembly is clamped between the two limit rods.
[0010] Optionally, the top surface of the bottom pressure plate is also provided with a support cylinder for positioning the jacking assembly.
[0011] Optionally, the lifting assembly includes a screw handle, a lifting rod and a sliding rod, the screw handle is rotatably connected to the support tube, the lifting rod is vertically arranged and threadedly connected to the middle part of the screw handle, and the sliding rod is parallel to the limit rod and fixedly arranged at the top of the lifting rod.
[0012] Optionally, a hand wheel is further provided at the top of the lifting rod, and the sliding rod is arranged at the top of the hand wheel.
[0013] Optionally, the arc-shaped hinge seat is filled with concrete.
[0014] Optionally, a bottom connecting plate is further provided on the top surface of the bottom pressure-bearing plate, and a top connecting plate for being connected to the bottom connecting plate by bolts is further provided on the bottom surface of the top pressure-bearing plate.
[0015] It can be seen from the above technical solution that the beneficial effects of the utility model are:
[0016] The utility model provides a simple hinged slope adjuster for prefabricated beams and slabs, including a bottom pressure plate and a top pressure plate; an arc-shaped cylinder is provided on the top surface of the bottom pressure plate, and sealing plates are respectively provided at both ends of the arc-shaped cylinder to enclose the bottom pressure plate to form an arc-shaped hinge seat; an arc-shaped limit plate for fitting with the outer wall of the arc-shaped cylinder is provided on the bottom surface of the top pressure plate, and side limit plates are also respectively provided at both ends of the arc-shaped limit plate to accommodate the arc-shaped hinge seat; a jacking assembly is also provided on one axial side of the arc-shaped hinge seat, and the bottom end of the jacking assembly is fixedly connected to the bottom pressure plate, and the top end of the jacking assembly abuts against the bottom surface of the top pressure plate. The slope adjuster, by arranging an arc-shaped hinge seat between the two pressure plates to replace the triangular plate of the prior art, enables the two pressure plates to be hinged in the form of surface contact to disperse the upper load, so that the arc-shaped hinge seat can be used as the main force-bearing component, reducing the design requirements of the jacking assembly, and making it possible to reduce the difficulty and accuracy of adjustment by reducing the number of jacking assemblies. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.
[0018] Figure 1 It is a three-dimensional structural schematic diagram of a simple hinged slope adjuster for prefabricated beams and slabs;
[0019] Figure 2 It is a cross-sectional view of a simple hinged slope adjuster for precast beams and slabs;
[0020] Figure 3 for Figure 2 The enlarged view of point A in the middle;
[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the top pressure plate;
[0022] Figure 5 It is a structural schematic diagram of the slope adjuster in the transport state;
[0023] Reference numerals:
[0024] 1- bottom pressure plate, 2- arc hinge seat, 3- top pressure plate, 4- side limit plate, 5- arc limit plate, 6- support cylinder, 7- jacking assembly;
[0025] 11-bottom connecting plate, 12-lifting ear, 31-top connecting plate, 32-limiting rod, 71-screwing handle, 72-handwheel, 73-sliding rod. DETAILED DESCRIPTION
[0026] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.
[0027] See also Figure 1-4 The utility model provides a simple hinged slope adjuster for prefabricated beams and slabs, comprising a bottom pressure plate 1 and a top pressure plate 3. An arc-shaped cylinder is provided on the top surface of the bottom pressure plate 1, and sealing plates are respectively provided at both ends of the arc-shaped cylinder to enclose the bottom pressure plate 1 to form an arc-shaped hinge seat 2. Preferably, grouting holes are provided on the surface of the sealing plate, so that after the slope adjuster is transported to the working position, grouting is injected into the inside of the arc-shaped hinge seat 2 through the grouting holes to form a concrete block, thereby improving the pressure-bearing capacity of the arc-shaped hinge seat 2. An arc-shaped limit plate 5 for fitting with the outer wall of the arc-shaped cylinder is provided on the bottom surface of the top pressure plate 3, and side limit plates 4 are respectively provided at both ends of the arc-shaped limit plate 5 to accommodate the arc-shaped hinge seat 2, thereby limiting the relative position of the top pressure plate 3 and the arc-shaped hinge seat 2 under the action of the upper load. A jacking assembly 7 is also provided on one axial side of the arc-shaped hinge seat 2, and the bottom end of the jacking assembly 7 is fixedly connected to the bottom pressure plate 1, and the top end of the jacking assembly 7 is abutted against the bottom surface of the top pressure plate 3. Specifically, the top end can slide left and right on the bottom surface of the top pressure plate 3, so that the inclination direction and inclination angle of the top pressure plate 3 can be changed by adjusting the jacking height of the jacking assembly 7.
[0028] The present slope adjuster structure replaces the triangular plate of the prior art by arranging an arc-shaped hinge seat 2 between the two pressure plates, so that the two pressure plates are hinged in the form of surface contact to disperse the upper load, thereby allowing the arc-shaped hinge seat 2 to serve as the main force-bearing component, reducing the design requirements of the jacking assembly 7, and making it possible to reduce the adjustment difficulty and adjustment accuracy by reducing the number of jacking assemblies 7.
[0029] As a further improvement to the above scheme, the bottom surface of the top pressure plate 3 is also provided with two limit rods 32 which are axially parallel to the arc-shaped hinge seat 2, and the top end of the jacking assembly 7 is clamped between the two limit rods 32, so as to limit the sliding path of the top end of the jacking assembly 7 by the two limit rods 32, thereby limiting the maximum inclination of the top pressure plate 3.
[0030] In one embodiment, the top surface of the bottom pressure plate 1 is also provided with a support tube 6 for positioning the jacking assembly 7; the jacking assembly 7 includes a screw handle 71, a jacking rod and a sliding rod 73, the screw handle 71 is rotatably connected to the support tube 6, the jacking rod is vertically arranged and threadedly connected to the middle part of the screw handle 71, and the sliding rod 73 is parallel to the limit rod 32 and fixedly arranged at the top of the jacking rod. Generally, the sliding rod 73 is fixed to the top pressure plate 3 by welding, so the bottom surface of the top pressure plate 3 is also provided with a positioning groove for determining the welding position of the sliding rod 73, and the sliding rod 73 is embedded in the positioning groove to facilitate accurate welding. The screw handle 71 contacts the top surface of the support tube 6, and the jacking rod is raised or lowered by rotating the screw handle 71. The lifting and lowering movement of the jacking rod drives the top sliding rod 73 to slide left and right, thereby changing the inclination angle of the top pressure plate 3. Preferably, a hand wheel 72 is further provided at the top of the lifting rod, and the sliding rod 73 is arranged at the top of the hand wheel 72. When the screwing handle 71 is screwed, the lifting rod can be prevented from rotating by holding the hand wheel 72 to maintain the parallel relationship between the sliding rod 73 and the limiting rod 32.
[0031] As a further improvement to the above scheme, please refer to Figure 5 , the top surface of the bottom pressure plate 1 is also provided with a bottom connecting plate 11, and the bottom surface of the top pressure plate 3 is also provided with a top connecting plate 31 for connecting with the bottom connecting plate 11 by bolts. When storing or transporting the slope adjuster, it is necessary to store the components together as conveniently as possible, fix the bottom connecting plate 11 and the top connecting plate 31 by bolts, so that the bottom pressure plate 1 and the top pressure plate 3 remain parallel, which not only stores the components together, but also facilitates the stacking of multiple slope adjusters, reduces its space occupancy rate, and is convenient for storage or transportation; and when the slope adjuster needs to be used, the corresponding bolts are removed. Preferably, the top surface of the bottom pressure plate 1 is also provided with a lifting lug 12 for convenient lifting.
[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.
Claims
1. A simple hinged slope adjuster for prefabricated beams and slabs, characterized in that: It comprises a bottom pressure plate (1) and a top pressure plate (3); the top surface of the bottom pressure plate (1) is provided with an arc-shaped cylinder, and both ends of the arc-shaped cylinder are respectively provided with sealing plates to enclose the bottom pressure plate (1) to form an arc-shaped hinge seat (2); the bottom surface of the top pressure plate (3) is provided with an arc-shaped limit plate (5) for fitting with the outer wall of the arc-shaped cylinder, and both ends of the arc-shaped limit plate (5) are respectively provided with side limit plates (4) for accommodating the arc-shaped hinge seat (2); a lifting component (7) is also provided on one axial side of the arc-shaped hinge seat (2), the bottom end of the lifting component (7) is fixedly connected to the bottom pressure plate (1), and the top end of the lifting component (7) is in contact with the bottom surface of the top pressure plate (3).
2. A simple hinged slope adjuster for prefabricated beams and slabs according to claim 1, characterized in that: The bottom surface of the top pressure plate (3) is also provided with two limit rods (32) which are respectively parallel to the axis of the arc-shaped hinge seat (2), and the top end of the jacking assembly (7) is clamped between the two limit rods (32).
3. The simple hinged slope adjuster for prefabricated beams and slabs according to claim 2 is characterized in that: The top surface of the bottom pressure plate (1) is also provided with a support cylinder (6) for positioning a jacking assembly (7).
4. The simple hinged slope adjuster for prefabricated beams and slabs according to claim 3 is characterized in that: The lifting assembly (7) comprises a screwing handle (71), a lifting rod and a sliding rod (73); the screwing handle (71) is rotatably connected to the support tube (6); the lifting rod is vertically arranged and threadedly connected to the middle part of the screwing handle (71); and the sliding rod (73) is parallel to the limiting rod (32) and fixedly arranged at the top end of the lifting rod.
5. The simple hinged slope adjuster for prefabricated beams and slabs according to claim 4, characterized in that: A hand wheel (72) is also provided at the top end of the lifting rod, and the sliding rod (73) is arranged at the top end of the hand wheel (72).
6. A simple hinged slope adjuster for prefabricated beams and slabs according to any one of claims 1 to 5, characterized in that: The arc-shaped hinge seat (2) is filled with concrete.
7. The simple hinged slope adjuster for precast beams and slabs according to claim 6, characterized in that: The top surface of the bottom pressure-bearing plate (1) is also provided with a bottom connecting plate (11), and the bottom surface of the top pressure-bearing plate (3) is also provided with a top connecting plate (31) for being connected to the bottom connecting plate (11) by means of bolts.