Base structure and high bridge pier formwork support

Abstract

The utility model relates to positioning support field especially a base structure and viaduct pier formwork support, including, base assembly, the base assembly includes the base, is provided with the mounting groove on the base upper end surface, the turntable assembly, the turntable assembly includes the rotary table of rotation installation in the mounting groove, the upper end surface of rotary table is provided with the recess, the positioning assembly, the positioning assembly includes the cylinder fixed on the base, the one end close to the recess of cylinder is provided with the locating plate, the one end away from the cylinder of locating plate extends the positioning portion downward, the positioning portion is located in the recess, through the base structure design is fixed portion and the rotating portion, the angle of support can still be adjusted after the base is fixed on the construction platform, and the formwork is aligned, and then the firm support of formwork is realized, avoids the problem that the support is not in place or is difficult to support after the base fixed position is offset.

Description

Technical Field

[0001] This utility model relates to the field of positioning brackets, and in particular to a base structure and a formwork bracket for elevated bridge piers. Background Technology

[0002] The piers of the viaduct are formed by casting. During the construction, the piers are cast section by section. Specifically, the bottom section of the formwork is laid out and cast, then the next section of the formwork is laid out and cast again, and so on, until the pier is completed. When laying out the formwork, scaffolds are used to fix the position of the formwork, and then the construction workers fix the upper and lower sections of the formwork together. As the piers are cast upwards section by section, the construction workers need to build corresponding steel reinforcement working platforms layer by layer. Steel plates or wooden boards are laid on the platforms, and the construction workers stand on the steel plates or wooden boards to carry out the construction.

[0003] When positioning the upper formwork, the lower part of the scaffold needs to be placed on a steel plate or wooden board that serves as the working platform, which results in poor stability. Fixing the bottom of the scaffold to the working platform with bolts can greatly improve the stability of the scaffold. However, during the construction and laying of the working platform, there are positional deviations between the layers, resulting in inconsistent bolt hole positions. After the scaffold is fixed, it is difficult to firmly support the formwork, and sometimes it cannot even support the formwork. In this case, it is necessary to re-drill bolt holes, which increases the workload and construction time. At the same time, the existence of the original bolt holes also affects the drilling of new bolt holes, which greatly increases the difficulty of the formwork support work. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is that, due to the deviation of the bolt hole position when the construction platform is built, the support may not be able to support the template properly or may be difficult to support when the support is fixed on the construction platform.

[0005] The above-mentioned technical problems are solved by the following technical solution: This utility model proposes a base structure, including: a base assembly, the base assembly including a base platform, the upper surface of the base platform being provided with an installation groove; a turntable assembly, the turntable assembly including a turntable rotatably installed in the installation groove, the upper surface of the turntable being provided with a groove; and a positioning assembly, the positioning assembly including a cylinder fixed to the base platform, a positioning plate being provided at the end of the cylinder near the groove, and a positioning part extending downward from the end of the positioning plate away from the cylinder, the positioning part being located in the groove.

[0006] In a preferred embodiment of the base structure of this utility model: the base is frustum-shaped, the mounting groove is a circular groove coaxially arranged with the base; the rotating platform is a frustum-shaped platform coaxially rotatably arranged in the mounting groove, and the groove is a circular groove coaxially arranged on the upper surface of the rotating platform; the extension and retraction direction of the cylinder is the same as the radial direction of the groove.

[0007] In a preferred embodiment of the base structure described in this utility model: the upper surface of the base platform is provided with a receiving groove at the edge of the mounting groove, and the cylinder is fixed in the receiving groove; the positioning plate extends downward with a mounting part at one end near the cylinder, and the mounting part is fixedly connected to the end of the cylinder near the positioning plate.

[0008] In a preferred embodiment of the base structure described in this utility model: the positioning component further includes a pad disposed on the positioning part, the pad being fixed to the side of the positioning part near the sidewall of the groove.

[0009] In a preferred embodiment of the base structure described in this utility model: a through hole is provided on the base, the through hole penetrates the upper and lower end faces of the base, and a fixing pin is provided through the through hole.

[0010] In a preferred embodiment of the base structure described in this utility model: multiple sets of positioning components are provided, and the multiple sets of positioning components are evenly distributed at intervals along the circumferential direction of the mounting groove.

[0011] The beneficial effects of this utility model are as follows: by designing the base structure as a fixed part and a rotating part, the angle of the support can still be adjusted after the base is fixed on the construction platform to align with the template, thereby achieving stable support for the template and avoiding the problem of inadequate support or difficulty in support after the fixed position of the base shifts; through the design of the positioning component driven by the cylinder, it has a firm positioning effect on the rotating table after support, and the operation is relatively convenient.

[0012] To address the problem of instability in existing supports, this invention proposes a support for elevated bridge pier formwork, including the aforementioned base structure and a support assembly. The support assembly includes a support rod hinged to a rotating platform, with a support plate at the end of the support rod away from the rotating platform. The support plate is adapted to the shape of the elevated bridge pier formwork.

[0013] In a preferred embodiment of the elevated bridge pier formwork support of this utility model, a locking assembly is further included. The locking assembly includes a frame rod hinged to the support rod. The frame rod is a telescopic rod. A locking bolt is provided on the frame rod. A sliding seat is hinged to the end of the frame rod away from the support rod. A slide rail is provided on the base. The slide rail is an annular slide rail coaxially arranged with the base. The sliding seat is slidably arranged on the slide rail.

[0014] In a preferred embodiment of the elevated bridge pier formwork support of this utility model: the support plate is hinged to the end of the support rod away from the rotating table.

[0015] In a preferred embodiment of the elevated bridge pier formwork support of this utility model, the support rod is a telescopic rod.

[0016] The beneficial effects of this utility model are as follows: by adopting the above-mentioned base structure, after the base is fixed on the construction platform, the angle of the bracket can still be adjusted to align with the template, thereby achieving stable support for the template and avoiding the problem of inadequate support or difficulty in support after the fixed position of the base shifts; by setting the locking component, a stable triangular support structure is formed between the support rod and the base to maintain the support angle of the support rod, thereby ensuring the stability of the support. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments of this utility model will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this utility model and are not intended to limit the scope of this utility model. Wherein:

[0018] Figure 1 A schematic diagram of the base structure is shown;

[0019] Figure 2 A schematic diagram of the structure at the positioning component is shown;

[0020] Figure 3 A schematic diagram of the positioning component is shown;

[0021] Figure 4 A schematic diagram of the formwork support for the piers of an elevated bridge is shown. Detailed Implementation

[0022] To enable those skilled in the art to better understand this utility model, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0023] The terminology used in this invention refers to those general terms currently widely used in the art in consideration of the functionality of this invention; however, these terms may vary according to the intent, precedent, or new technology of those skilled in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of this invention. Therefore, the terminology used in this specification should not be construed as simple names, but rather based on the meaning of the terms and the overall description of this invention.

[0024] Reference Figures 1 to 3 This embodiment provides a base structure, including:

[0025] Base assembly 1 includes a base 11, which is frustum-shaped. A mounting groove 111 is provided on the upper surface of the base 11. The mounting groove 111 is a circular groove coaxial with the base 11.

[0026] The turntable assembly 2, the turntable assembly 2 includes a rotating turntable 21 rotatably installed in the installation groove 111, the rotating turntable 21 is specifically a circular circular table coaxially rotated and disposed in the installation groove 111, specifically, a short shaft may be rotatably disposed at the center of the installation groove 111, the center of the lower end of the rotating turntable 21 is fixed on the short shaft, so as to realize the rotation of the rotating turntable 21, the upper end surface of the rotating turntable 21 is provided with a groove 211, and the groove 211 is a circular groove coaxially disposed on the upper end surface of the rotating turntable 21;

[0027] The positioning assembly 3, the positioning assembly 3 includes an air cylinder 31 fixed on the base 11, the expansion direction of the air cylinder 31 is the same as the radial direction of the groove 211, one end of the air cylinder 31 close to the groove 211 is provided with a positioning plate 32, one end of the positioning plate 32 away from the air cylinder 31 extends downward with a positioning portion 321, and the positioning portion 321 is located in the groove 211; the positioning assembly 3 is specifically provided with a plurality of groups, and the plurality of groups of positioning assemblies 3 are evenly spaced along the circumferential direction of the installation groove 111.

[0028] The base structure of the present application can be used as a base for equipment that needs to adjust the circumferential angle after the base position is fixed, such as the base of a viaduct pier formwork support, and the application principle is as follows: the base 11 is fixed on the construction platform, the positioning portion 321 of the positioning plate 32 does not contact the side wall of the groove 211 on the upper end of the rotating turntable 21, so that the rotating turntable 21 can rotate freely relative to the base 11; rotate the rotating turntable 21 to adjust the angle of the support, support the upper end of the support on the outer wall of the formwork, then the air cylinder 31 contracts, so that the positioning portion 321 of the positioning plate 32 abuts tightly against the side wall of the groove 211, restricting the rotation of the rotating turntable 21, and realizing stable support for the formwork.

[0029] Further, with reference to Figure 1 and Figure 2 the upper end surface of the base 11 is provided with an accommodation groove 112 at the edge position of the installation groove 111, and the air cylinder 31 is fixed in the accommodation groove 112;

[0030] one end of the positioning plate 32 close to the air cylinder 31 extends downward with an installation portion 322, and the installation portion 322 is fixedly connected with one end of the air cylinder 31 close to the positioning plate 32.

[0031] In design, the upper end of the rotating turntable 21 is flush with the upper end of the base 11, the positioning plate 32 is of a "匚"-shaped structure with a downward opening, the side thereof close to the rotating turntable 21 is the positioning portion 321 and is located in the groove 211. With the contraction or extension of the air cylinder 31, the rotating turntable 21 is positioned or the positioning of the rotating turntable 21 is released. The other end of the positioning plate 32 is the installation portion 322, and the installation portion 322 is connected with the air cylinder 31, realizing the connection between the positioning plate 32 and the air cylinder 31.

[0032] Embodiment 2, with reference to Figures 1 to 3The positioning component 3 also includes a pad 33 disposed on the positioning part 321, the pad 33 being fixed to the side of the positioning part 321 near the side wall of the groove 211.

[0033] In order to improve the stability of the positioning plate 32 in positioning the rotating table 21, a shim 33 is fixed on the side of the positioning part 321 near the side wall of the groove 211. The shim 33 is made of elastic plastic or rubber. During positioning, the shim 33 is tightly attached to the side wall of the groove 211.

[0034] Furthermore, refer to Figure 1 A through hole 113 is provided on the base 11, which penetrates the upper and lower end faces of the base 11, and a fixing pin 114 is provided on the through hole 113.

[0035] The fixing pin 114 is a bolt. The construction platform has bolt holes corresponding to the positions of the through holes 113. The base 11 is fixed to the construction platform by bolts to maintain the stability of the support and prevent displacement. The through holes 113 and the positioning pins can be arranged in multiple ways along the circumference of the base 11.

[0036] Example 3, referring to Figure 4 This embodiment provides a formwork support for elevated bridge piers, including a base structure, and also includes...

[0037] Support assembly 4 includes a support rod 41 hinged to the rotating platform 21. The support rod 41 is a telescopic rod, which can be a hydraulic cylinder, a pneumatic cylinder 31, or an electric telescopic rod, preferably a pneumatic cylinder 31. A support plate 42 is provided at the end of the support rod 41 away from the rotating platform 21. The support plate 42 is specifically hinged to the end of the support rod 41 away from the rotating platform 21. The shape of the support plate 42 is adapted to the formwork of the elevated bridge pier. The formwork of the elevated bridge pier is generally circular, and the support plate 42 can be designed as an arc plate. Of course, for other shapes of formwork, the support plate 42 is replaced accordingly.

[0038] In use, the base 11 is fixed on the construction platform, and the rotating platform 21 is initially in a free rotation state. The angle of the support rod 41 is rotated so that the support plate 42 is facing the template, and the length of the support rod 41 is adjusted so that the support plate 42 is tightly attached to the outer wall of the template. Then the cylinder 31 retracts to restrict the rotation of the rotating platform 21.

[0039] Furthermore, refer to Figure 4 The formwork support for the elevated bridge pier also includes a locking assembly 5, which includes a frame rod 51 hinged to the support rod 41. The frame rod 51 is a telescopic rod, and a locking bolt 52 is provided on the frame rod 51. A slide block 53 is hinged to the end of the frame rod 51 away from the support rod 41. A slide rail 115 is provided on the base 11. The slide rail 115 is an annular slide rail 115 coaxially arranged with the base 11, and the slide block 53 is slidably arranged on the slide rail 115.

[0040] To enhance the stability of the support and prevent changes in the relative angle between the support rod 41 and the rotating platform 21, a locking assembly 5 is installed between the support rod 41 and the base 11 to limit the relative angle between the support rod 41 and the rotating platform 21. Specifically, the support rod 51 is supported between the base 11 and the support rod 41, specifically at the lower part of the support rod 41. After the length of the support rod 51 is fixed, the support rod 51, the support rod 41, and the base 11 form a stable triangular structure to keep the angle of the support rod 41 relative to the rotating platform 21 unchanged. The support rod 51 is circumferentially slidable on the base 11 using a slide block 53 and a slide rail 115, which does not affect the rotation of the rotating platform 21 relative to the base 11.

[0041] By designing the base structure as a fixed part and a rotating part, the angle of the support can still be adjusted after the base is fixed on the construction platform to align with the template, thereby achieving stable support for the template and avoiding the problem of inadequate support or difficulty in support after the fixed position of the base shifts. The positioning component 3 driven by the cylinder 31 has a firm positioning effect on the rotating table 21 after support, and the operation is relatively convenient.

[0042] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of this utility model.

Claims

1. A base structure, characterized in that: include, The base assembly (1) includes a base platform (11) and a mounting groove (111) is provided on the upper surface of the base platform (11); Turntable assembly (2), the turntable assembly (2) includes a turntable (21) rotatably mounted in the mounting groove (111), the upper end surface of the turntable (21) is provided with a groove (211); The positioning component (3) includes a cylinder (31) fixed on the base (11). A positioning plate (32) is provided at one end of the cylinder (31) near the groove (211). A positioning part (321) extends downward from the end of the positioning plate (32) away from the cylinder (31). The positioning part (321) is located in the groove (211).

2. The base structure according to claim 1, characterized in that: The base (11) is frustum-shaped, and the mounting groove (111) is a circular groove coaxial with the base (11); The rotating platform (21) is a frustum coaxially rotatably disposed in the mounting groove (111), and the groove (211) is a circular groove coaxially disposed on the upper end face of the rotating platform (21). The extension and retraction direction of the cylinder (31) is the same as the radial direction of the groove (211).

3. The base structure according to claim 2, characterized in that: The upper end face of the base (11) is provided with a receiving groove (112) at the edge of the mounting groove (111), and the cylinder (31) is fixed in the receiving groove (112); The positioning plate (32) has a mounting part (322) extending downward from one end near the cylinder (31), and the mounting part (322) is fixedly connected to the end of the cylinder (31) near the positioning plate (32).

4. The base structure according to claim 3, characterized in that: The positioning component (3) further includes a pad (33) disposed on the positioning part (321), the pad (33) being fixed to the side of the positioning part (321) near the side wall of the groove (211).

5. The base structure according to claim 4, characterized in that: The base (11) is provided with a through hole (113), which penetrates the upper and lower end faces of the base (11), and a fixing pin (114) is provided through the through hole (113).

6. The base structure according to claim 5, characterized in that: The positioning component (3) is provided in multiple sets, and the multiple sets of positioning components (3) are evenly distributed at circumferential intervals along the mounting groove (111).

7. A formwork support for elevated bridge piers, characterized in that: Including the base structure as described in any one of claims 1 to 6, it further includes, The support assembly (4) includes a support rod (41) hinged to the rotating platform (21), and a support plate (42) is provided at the end of the support rod (41) away from the rotating platform (21). The support plate (42) is adapted to the shape of the elevated bridge pier template.

8. The formwork support for elevated bridge piers according to claim 7, characterized in that: It also includes a locking assembly (5), which includes a frame rod (51) hinged to the support rod (41), the frame rod (51) being a telescopic rod, a locking bolt (52) being provided on the frame rod (51), and a slide block (53) being hinged to the end of the frame rod (51) away from the support rod (41). The base (11) is provided with a slide rail (115), which is an annular slide rail (115) coaxially arranged with the base (11), and the slide block (53) is slidably arranged on the slide rail (115).

9. The formwork support for elevated bridge piers according to claim 8, characterized in that: The support plate (42) is hinged to the end of the support rod (41) away from the rotating table (21).

10. The formwork support for elevated bridge piers according to claim 9, characterized in that: The support rod (41) is a telescopic rod.

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