Mounting device for prefabricated pier

Abstract

The installation device comprises posture adjusting mechanisms, an upper limiting mechanism and a lower limiting mechanism, the upper limiting mechanism is installed at the lower end of the prefabricated pier, the lower limiting mechanism is installed at the upper end of a bearing platform, and the multiple posture adjusting mechanisms are arranged between the upper limiting mechanism and the lower limiting mechanism at equal intervals; the posture adjusting mechanism is located on the outer side of the prefabricated pier. The method has the beneficial effects that the upper limiting mechanism and the lower limiting mechanism are mounted on the prefabricated pier and the bearing platform, so that the prefabricated pier and the bearing platform are stably fixed, relative movement such as displacement and corner between the prefabricated pier and the bearing platform is avoided in the solidification period of post-pouring concrete construction operation, and the construction efficiency is improved. Meanwhile, the posture adjusting mechanism is arranged between the upper limiting mechanism and the lower limiting mechanism, so that the height and the rotating angle between the prefabricated pier and the bearing platform are adjusted, the mounting precision of the bearing platform and the prefabricated pier is guaranteed, on-site rapid mounting of the prefabricated pier is achieved, and the labor intensity of an operator is relieved.

Description

Technical Field

[0001] The invention relates to the technical field of bridge prefabrication and assembly, in particular to an installation device for prefabricated bridge piers. Background Art

[0002] Bridge construction is mainly divided into lower engineering and upper engineering. The upper engineering is mainly the main load-bearing structure for crossing obstacles, namely the beam body; the lower engineering mainly includes three parts: piers, abutments and foundations.

[0003] Prefabricated bridge construction is a new technical means, the purpose of which is to build bridges quickly and greenly, and to build safe, comfortable and durable bridge projects. By changing the traditional construction concept, taking local conditions into consideration in the design process, and making full use of prefabrication and assembly technology, the on-site construction process can be reduced as much as possible, large temporary projects can be reduced, the interference with the surrounding environment can be reduced, the construction period can be shortened, and the cost can be reduced. Compared with traditional cast-in-place construction, prefabricated assembly construction can achieve standardized, factory-based, intelligent mass production, mechanized transportation and installation, and has many advantages such as controllable quality, low-carbon energy saving and environmental protection, low cost, and short cycle.

[0004] For the upper part of the bridge, the research and application of prefabrication and assembly construction in China has been very mature. Various types of beams and bridge erection machines are widely used in the construction of highway and railway bridges. The beams have been fully industrialized and mechanized. However, for the lower part of the bridge, cast-in-place construction is still the main method. The cast-in-place method has a long construction period, it is difficult to control the quality of the construction, and the construction period is easily affected by many external factors. Summary of the invention

[0005] The object of the present invention is to overcome the disadvantages of the prior art and provide an installation device for prefabricated bridge piers.

[0006] The objective of the present invention is achieved through the following technical solutions: an installation device for prefabricated bridge piers, comprising a posture adjustment mechanism, an upper limit mechanism and a lower limit mechanism, the upper limit mechanism being installed at the lower end of the prefabricated bridge pier, the lower limit mechanism being installed at the upper end of the pedestal, a plurality of posture adjustment mechanisms being arranged at equal intervals between the upper limit mechanism and the lower limit mechanism, and the posture adjustment mechanism being located on the outer side of the prefabricated bridge pier.

[0007] Preferably, the upper limit mechanism and the lower limit mechanism have the same structure.

[0008] Preferably, the upper limit mechanism includes a fixed ring, a power source and a friction plate, the fixed ring is provided with a plurality of power sources, and the power output end of the power source passes through the fixed ring and is connected to the friction plate, and the friction plate is connected to the side of the prefabricated pier.

[0009] Preferably, the fixing ring is composed of a plurality of sub-rings, and adjacent sub-rings are connected by bolts.

[0010] Preferably, the number of power sources is an even number.

[0011] Preferably, the power source is a limit oil cylinder or a limit air cylinder, the cylinder body of the limit oil cylinder or the limit air cylinder is fixedly mounted on the fixing ring, and the hydraulic rod on the limit oil cylinder or the piston rod on the limit air cylinder passes through the fixing ring and is connected to the friction plate.

[0012] Preferably, it also includes a connecting plate, which is C-shaped, with both ends of the opening of the connecting plate fixedly connected to the side of the fixing ring, and a plurality of connecting holes are radially opened at the lower end of the connecting plate, with connecting ears hinged in the connecting holes, and the two ends of the posture adjustment mechanism are correspondingly installed on the connecting ears.

[0013] Preferably, the posture adjustment mechanism is a telescopic cylinder, the telescopic direction of the telescopic cylinder is the same as the height direction of the prefabricated pier, and the cylinder body and piston rod of the telescopic cylinder are respectively fixedly connected to corresponding connecting ears.

[0014] Preferably, the number of telescopic cylinders is an even number.

[0015] The present invention has the following advantages: the present invention installs an upper limit mechanism and a lower limit mechanism on the prefabricated pier and the pedestal, thereby fixing and stabilizing the prefabricated pier and the pedestal, avoiding relative movements such as displacement and rotation between the prefabricated pier and the pedestal during the solidification period of the post-cast concrete construction operation, and at the same time, a posture adjustment mechanism is provided between the upper limit mechanism and the lower limit mechanism, thereby adjusting the height and rotation angle between the prefabricated pier and the pedestal, ensuring the installation accuracy of the pedestal and the prefabricated pier, realizing rapid on-site installation of the prefabricated pier, and reducing the labor intensity of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the installation device; Figure 2 A schematic diagram of the structure of the installation device for circular bridge piers; Figure 3 A schematic diagram of the structure of the installation device for rectangular bridge piers; Figure 4 A schematic diagram of the structure of the installation device for round-end bridge piers; Figure 5 Structural schematic diagram for on-site installation of prefabricated piers; In the figure, 1-upper limit mechanism, 2-lower limit mechanism, 3-posture adjustment mechanism, 4-fixing ring, 5-power source, 6-friction plate, 7-connecting plate, 8-connecting hole, 9-connecting ear, 10-prefabricated pier, 11-cap, 12-post-poured concrete. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0021] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invented product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In this embodiment, if Figure 1~Figure 5As shown, a device for installing a prefabricated bridge pier comprises a posture adjustment mechanism 3, an upper limit mechanism 1 and a lower limit mechanism 2. The upper limit mechanism 1 is installed at the lower end of the prefabricated bridge pier 10, and the lower limit mechanism 2 is installed at the upper end of the cap 11. A plurality of posture adjustment mechanisms 3 are arranged at equal intervals between the upper limit mechanism 1 and the lower limit mechanism 2, and the posture adjustment mechanism 3 is located outside the prefabricated bridge pier 10. By installing the upper limit mechanism 1 and the lower limit mechanism 2 on the prefabricated bridge pier 10 and the cap 11, the prefabricated bridge pier 10 and the cap 11 are fixed and stable. During the solidification of the post-cast concrete 12, relative movements such as displacement and rotation between the prefabricated bridge pier 10 and the cap 11 are avoided. At the same time, the posture adjustment mechanism 3 is arranged between the upper limit mechanism 1 and the lower limit mechanism 2, so as to adjust the height and rotation angle between the prefabricated bridge pier 10 and the cap 11, thereby ensuring the installation accuracy of the cap 11 and the prefabricated bridge pier 10, realizing the rapid installation of the prefabricated bridge pier 10 on site, and reducing the labor intensity of the operator.

[0024] Furthermore, the upper limit mechanism 1 and the lower limit mechanism 2 have the same structure. Still further, the upper limit mechanism 1 includes a fixed ring 4, a power source 5 and a friction plate 6. The fixed ring 4 is provided with a plurality of power sources 5, and the power output end of the power source 5 passes through the fixed ring 4 and is connected to the friction plate 6, and the friction plate 6 is connected to the side of the prefabricated bridge pier 10. Preferably, the power source 5 is arranged on the fixed ring 4 at equal intervals. Specifically, the friction plate 6 in the lower limit mechanism 2 is connected to the side of the pedestal 11. The friction plate 6 is driven by the power source 5 to press against the side of the prefabricated bridge pier 10 or the pedestal 11 to form a force application point, thereby limiting and fixing the prefabricated bridge pier 10 and the pedestal 11, avoiding relative movement such as displacement and rotation between the prefabricated bridge pier 10 and the pedestal 11. In this embodiment, the friction plate 6 is an existing high friction coefficient plate, and the material can be selected from steel or resin, and its friction coefficient is 1.

[0025] In this embodiment, the fixing ring 4 is composed of a plurality of sub-rings, and adjacent sub-rings are connected by bolts. Specifically, for better disassembly and construction, the fixing ring 4 here is composed of two sub-rings, and the two sub-rings are connected as one by bolts.

[0026] Further, the power source 5 is a limit oil cylinder or a limit air cylinder, the cylinder body of the limit oil cylinder or the limit air cylinder is fixedly mounted on the fixing ring 4, and the hydraulic rod on the limit oil cylinder or the piston rod on the limit air cylinder penetrates the fixing ring 4 and is connected to the friction plate 6. Preferably, the number of the power sources 5 is an even number. In this embodiment, the number of the power sources 5 is 8.

[0027] In this embodiment, a connecting plate 7 is also included. The connecting plate 7 is C-shaped. Both ends of the opening of the connecting plate 7 are fixedly connected to the side of the fixing ring 4, and a plurality of connecting holes 8 are radially opened at the lower end of the connecting plate 7. Connecting ears 9 are hinged in the connecting holes 8, and both ends of the posture adjustment mechanism 3 are correspondingly installed on the connecting ears 9. Specifically, the connecting ear 9 is U-shaped. When the connecting ear 9 is hinged to the connecting plate 7, the connecting plate 7 is inserted into the "U" opening of the connecting ear 9, and the connecting ear 9 is hinged to the connecting plate 7 through a pin. Further, the posture adjustment mechanism 3 is a telescopic cylinder. The telescopic direction of the telescopic cylinder is the same as the height direction of the prefabricated bridge pier 10. The cylinder body and the piston rod of the telescopic cylinder are respectively fixedly connected to the corresponding connecting ears 9. Preferably, the number of telescopic cylinders is an even number. Specifically, the installation positions of the telescopic cylinders and the power sources 5 correspond one to one, that is, the number of the telescopic cylinders is 8. By installing the telescopic cylinders between the upper limit mechanism 1 and the lower limit mechanism 2, the height and the angle between the prefabricated pier 10 and the platform 11 are adjusted, thereby ensuring the installation accuracy of the platform 11 and the prefabricated pier 10.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An installation device for prefabricated bridge piers, characterized in that: The invention comprises a posture adjustment mechanism (3), an upper limit mechanism (1) and a lower limit mechanism (2), wherein the upper limit mechanism (1) is installed at the lower end of a prefabricated bridge pier (10), and the lower limit mechanism (2) is installed at the upper end of a bearing platform (11), and a plurality of posture adjustment mechanisms (3) are arranged at equal intervals between the upper limit mechanism (1) and the lower limit mechanism (2), and the posture adjustment mechanism (3) is located outside the prefabricated bridge pier (10).

2. The installation device for prefabricated bridge piers according to claim 1, characterized in that: The upper limit mechanism (1) and the lower limit mechanism (2) have the same structure.

3. The installation device for prefabricated bridge piers according to claim 2, characterized in that: The upper limit mechanism (1) comprises a fixing ring (4), a power source (5) and a friction plate (6); a plurality of the power sources (5) are arranged on the fixing ring (4); a power output end of the power source (5) passes through the fixing ring (4) and is connected to the friction plate (6); and the friction plate (6) is connected to the side of the prefabricated bridge pier (10).

4. The installation device for prefabricated bridge piers according to claim 3, characterized in that: The fixing ring (4) is composed of a plurality of sub-rings, and adjacent sub-rings are connected by bolts.

5. The installation device for prefabricated bridge piers according to claim 4, characterized in that: The number of the power sources (5) is an even number.

6. The installation device for prefabricated bridge piers according to claim 5, characterized in that: The power source (5) is a limit oil cylinder or a limit air cylinder, the cylinder body of the limit oil cylinder or the limit air cylinder is fixedly mounted on the fixing ring (4), and the hydraulic rod on the limit oil cylinder or the piston rod on the limit air cylinder passes through the fixing ring (4) and is connected to the friction plate (6).

7. The installation device for prefabricated bridge piers according to claim 6, characterized in that: It also includes a connecting plate (7), the connecting plate (7) is C-shaped, both ends of the opening of the connecting plate (7) are fixedly connected to the side of the fixing ring (4), and a plurality of connecting holes (8) are radially opened at the lower end of the connecting plate (7), connecting ears (9) are hinged in the connecting holes (8), and the two ends of the posture adjustment mechanism (3) are correspondingly mounted on the connecting ears (9).

8. The installation device for prefabricated bridge piers according to claim 7, characterized in that: The posture adjustment mechanism (3) is a telescopic oil cylinder, the telescopic direction of which is the same as the height direction of the prefabricated bridge pier (10), and the cylinder body and piston rod of the telescopic oil cylinder are respectively fixedly connected to the corresponding connecting ears (9).

9. The installation device for prefabricated bridge piers according to claim 8, characterized in that: The number of the telescopic cylinders is an even number.

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