Bridge pier internal formwork

By designing the inner formwork components, anti-deviation components, and clamping mechanisms for the inner formwork of bridge pier columns, the problem of cumbersome dismantling of the inner formwork was solved, and the stable splicing and convenient dismantling of the inner formwork components were achieved, thereby improving construction efficiency and pouring quality.

CN224431263UActive Publication Date: 2026-06-30ZHEJIANG SHUNBANG CONSTR MASCH EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG SHUNBANG CONSTR MASCH EQUIP CO LTD
Filing Date
2025-08-01
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The removal of the inner formwork for existing circular cross-section hollow bridge piers is cumbersome and inefficient.

Method used

A bridge pier internal formwork was designed, comprising an internal formwork assembly, an anti-deviation assembly, a support mechanism, and a clamping mechanism. Through the combination of connectors and supports, the internal formwork assembly can be stably assembled and easily disassembled.

Benefits of technology

This improved the stability and dismantling efficiency of the internal mold components, ensured the quality of bridge pier casting, reduced operation time, and increased construction efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides an inner formwork for bridge piers, comprising: an inner formwork assembly with a fixing plate fixedly connected to its inner wall; an anti-deviation assembly installed at the bottom of the inner formwork assembly for preventing deviation between adjacent assembled inner formwork assemblies; a support mechanism installed inside the inner formwork assembly to enhance its support strength, with a clamping mechanism installed at its top; and a base plate fixedly connected to the bottom of the support mechanism. The clamping mechanism connects the support assembly and the inner formwork assembly, facilitating subsequent removal of the inner formwork assembly by lifting it with a hook. After removal, the locking assembly can be disassembled to easily separate the support mechanism from the fixing plate, improving efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of internal formwork technology, specifically an internal formwork for bridge piers. Background Technology

[0002] Hollow bridge piers are an important substructure form in bridge engineering, widely used in high bridges and long-span bridges. By designing the piers as hollow structures, they significantly reduce self-weight, optimize material usage, and lower engineering costs while ensuring structural strength and stability. The interior of the piers is hollow and usually adopts a circular, rectangular, or elliptical cross-section.

[0003] The inner formwork of the existing circular cross-section hollow bridge pier is being dismantled. Before the concrete was poured, the inner formwork was fixed together with bolts to form a complete whole. The dismantling process is cumbersome, making it difficult to remove the inner formwork, increasing time and reducing efficiency. Utility Model Content

[0004] This utility model addresses the technical problem of existing circular cross-section hollow bridge pier inner formwork, where the inner formwork is bolted together as a complete unit before pouring, making dismantling cumbersome, inconvenient to remove, time-consuming, and inefficient. Therefore, this utility model provides a bridge pier inner formwork.

[0005] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0006] This utility model provides an inner formwork for bridge piers, the inner formwork for bridge piers comprising:

[0007] The inner mold assembly has a fixing plate fixedly connected to its inner wall;

[0008] An anti-deviation component is installed at the bottom of the inner mold component and is used to prevent deviation of adjacent assembled inner mold components.

[0009] A support mechanism is installed inside the inner mold assembly, which strengthens the support of the inner mold assembly, and a clamping mechanism is installed at the top of the support mechanism.

[0010] The base plate is fixedly connected to the bottom end of the support mechanism.

[0011] Furthermore, the inner mold assembly includes a first template, a second template, and a connector. The first template and the second template are fixedly connected by the connector, and the top sides of the first template and the second template are provided with arc-shaped slots.

[0012] Furthermore, the connector includes a connecting seat, a connecting bolt, and a connecting nut. The connecting seats are respectively fixedly connected between the first template and the second template. The two mating connecting seats have connecting bolts passing through their surfaces, and the connecting bolts are threaded with connecting nuts at their ends.

[0013] Furthermore, the top view of the fixing plate has a semi-circular ring structure, and there are multiple fixing plates, which are equidistantly distributed between adjacent fixing plates.

[0014] Furthermore, the anti-deviation component includes an arc-shaped plate, a slide block, a sliding column, a fixed seat, and a spring. The arc-shaped plate is slidably connected in a sliding cavity, which is opened on the bottom side of the first template and the second template. A slide block is fixedly connected to the inner wall of the top of the arc-shaped plate. A sliding column passes through the surface of the slide block. The top side of the slide block is elastically connected to the bottom side of the fixed seat at the top through a spring. Fixed seats are fixedly connected to the opposite ends of the sliding column. The fixed seats are fixedly connected to the bottom side of the first template and the second template.

[0015] Furthermore, the arc-shaped plate has a cross-section resembling an arc shape when viewed from above, and an arc-shaped slot is provided directly above the arc-shaped plate.

[0016] Furthermore, the support mechanism includes a fixed column, a support column, a slide plate, and a locking column. The support column is fixedly connected to the side surface of the fixed column, and the end of the support column is fixedly connected to the inner wall of the slide plate. The locking column is fixedly connected to the top side of the slide plate, and the locking column engages with a through hole opened on the surface of the slide plate.

[0017] Furthermore, the slide plate has a semi-circular cross-section when viewed from above, and the top side of the slide plate is in contact with the bottom side surface of the fixed plate.

[0018] Furthermore, a plurality of locking posts are installed on the top surface of the slide plate, and the plurality of locking posts are evenly distributed on the top surface of the slide plate.

[0019] Furthermore, the clamping mechanism includes a threaded column, a lifting ring, and a clamping seat. The threaded column is threadedly connected to the top surface of the fixed column, and a lifting ring is fixedly connected to the top of the threaded column. A clamping seat is fixedly connected to the side surface of the top of the threaded column, and the clamping seat is fitted against the top side of the fixed plate.

[0020] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0021] The positive and progressive effects of this utility model are as follows:

[0022] The aforementioned bridge pier inner formwork, through the clamping mechanism, connects the support components and the inner formwork components. This facilitates subsequent removal of the inner formwork by lifting the lifting rings with hooks, making the operation convenient. After removal, the locking components can be disassembled to easily separate the support mechanism from the fixing plate, improving efficiency. During the assembly of the inner formwork components, the support mechanism effectively enhances the lateral pressure support of the inner formwork components on the poured concrete, improving the stability of the inner formwork components. The anti-deviation components ensure stable splicing between adjacent inner formwork components, preventing misalignment and guaranteeing the pouring quality of the bridge pier. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application.

[0024] Figure 1 This is a three-dimensional structural diagram of the inner template of this utility model.

[0025] Figure 2 This is a bottom-view three-dimensional structural diagram of the inner template of this utility model.

[0026] Figure 3 This is a three-dimensional cross-sectional view of the overall internal structure of the inner template of this utility model.

[0027] Explanation of reference numerals in the attached figures

[0028] 1. Inner mold assembly; 11. First template; 12. Second template; 13. Arc-shaped groove; 14. Connector; 141. Connecting seat; 142. Connecting bolt; 143. Connecting nut; 2. Anti-deviation assembly; 21. Sliding cavity; 22. Arc-shaped plate; 23. Fixed seat; 24. Sliding seat; 25. Sliding column; 26. Spring; 3. Fixed plate; 4. Support mechanism; 41. Fixed column; 42. Support column; 43. Slide plate; 44. Clamping column; 5. Clamping mechanism; 51. Lifting ring; 52. Threaded column; 53. Pressing seat; 6. Base plate. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0031] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0032] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0033] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0035] like Figure 1-3 As shown, the inner formwork of the bridge pier includes:

[0036] Inner mold assembly 1, wherein a fixing plate 3 is fixedly connected to the inner wall of the inner mold assembly 1;

[0037] Anti-deviation component 2, which is installed at the bottom of inner mold component 1, is used to prevent deviation of adjacent assembled inner mold components 1;

[0038] Support mechanism 4 is installed inside the inner mold assembly 1. The support mechanism 4 strengthens the support strength of the inner mold assembly 1. A clamping mechanism 5 is installed at the top of the support mechanism 4.

[0039] The base plate 6 is fixedly connected to the bottom end of the support mechanism 4.

[0040] The inner mold assembly 1 includes a first template 11, a second template 12 and a connector 14. The first template 11 and the second template 12 are fixedly connected by the connector 14. The top sides of the first template 11 and the second template 12 are provided with arc-shaped slots 13.

[0041] The first template 11 and the second template 12 are spliced ​​together. The connecting seat 141 fixedly connected to the inner wall of the first template 11 fits into the connecting seat 141 fixedly connected to the inner wall of the second template 12. The connecting bolt 142 is rotated and passes through the two connecting seats 141. The connecting nut 143 is rotated to achieve the fixation and stability of the two connecting seats 141, ensuring the stable placement of the inner mold assembly 1.

[0042] The connector 14 includes a connector 141, a connector bolt 142, and a connector nut 143. The connector 141 is fixedly connected between the first template 11 and the second template 12. The two connectors 141 are fitted together and the connector bolt 142 passes through them. The connector nut 143 is threaded onto the end of the connector bolt 142.

[0043] The top view of the fixing plate 3 is a semi-circular ring structure, and there are multiple fixing plates 3, which are equidistantly distributed between adjacent fixing plates 3.

[0044] The anti-deviation component 2 includes an arc-shaped plate 22, a slide block 24, a sliding column 25, a fixed seat 23, and a spring 26. The arc-shaped plate 22 is slidably connected in a sliding cavity 21, and the sliding cavity 21 is opened on the bottom side of the first template 11 and the second template 12. The slide block 24 is fixedly connected to the inner wall of the top of the arc-shaped plate 22. The sliding column 25 passes through the surface of the slide block 24. The top side of the slide block 24 is elastically connected to the bottom side of the fixed seat 23 at the top through the spring 26. The fixed seats 23 are fixedly connected to the opposite ends of the sliding column 25. The fixed seats 23 are fixedly connected to the bottom side of the first template 11 and the second template 12.

[0045] When one inner mold component 1 is installed on top of another inner mold component 1, the spring 26 pushes the slide 24 downward under the action of the spring 26. The slide 24 drives the fixedly connected arc plate 22 to move out of the slide cavity 21. The bottom end of the moved arc plate 22 is engaged with the top of the inner mold component 1 on the bottom side, so as to achieve stable splicing between two adjacent inner mold components 1 and facilitate use.

[0046] The arc-shaped plate 22 has a circular arc-shaped cross-section when viewed from above, and an arc-shaped slot 13 is provided directly above the arc-shaped plate 22.

[0047] The support mechanism 4 includes a fixed column 41, a support column 42, a sliding plate 43, and a locking column 44. The support column 42 is fixedly connected to the side surface of the fixed column 41. The end of the support column 42 is fixedly connected to the inner wall of the sliding plate 43. The locking column 44 is fixedly connected to the top side of the sliding plate 43. The locking column 44 engages with a through hole on the surface of the sliding plate 43.

[0048] The fixing seat 23, which is fixedly connected to the inner wall of the inner mold assembly 1, is engaged with the surface of the clamping post 44 on the top side of the slide plate 43. It is pressed by the clamping mechanism 5 to achieve a stable connection between the support mechanism 4 and the inner mold assembly 1. After connection, it is supported by the support post 42 and the fixing post 41, which effectively improves the lateral pressure support of the inner mold assembly 1 on the poured concrete and improves the stability of the inner mold assembly 1.

[0049] The slide plate 43 has a semi-circular cross-section when viewed from above, and the top side of the slide plate 43 is in contact with the bottom side surface of the fixing plate 3.

[0050] The top surface of the slide plate 43 is equipped with a plurality of locking posts 44, which are evenly distributed on the top side of the slide plate 43.

[0051] The clamping mechanism 5 includes a threaded post 52, a lifting ring 51, and a clamping seat 53. The threaded post 52 is threadedly connected to the top surface of the fixed post 41. The lifting ring 51 is fixedly connected to the top of the threaded post 52. The clamping seat 53 is fixedly connected to the side surface of the top of the threaded post 52. The clamping seat 53 is fitted against the top side of the fixed plate 3.

[0052] The rotating threaded column 52 is threadedly connected to the top of the fixed column 41. The threaded column 52 drives the fixedly connected clamping seat 53 to press and fit against the top of the fixed plate 3 at the top of the inner mold assembly 1, realizing the connection between the support assembly and the inner mold assembly 1. This facilitates the removal of the inner mold assembly 1 by lifting the lifting ring 51 with a hook during the subsequent removal of the inner mold. The operation is convenient. After being lifted out, the support mechanism 4 can be separated from the fixed plate 3 by disassembling the locking assembly, which is convenient and improves efficiency.

[0053] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the software and methods.

[0054] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A type of internal formwork for bridge piers, characterized in that, The internal formwork for the bridge piers includes: An inner mold assembly (1) has a fixing plate (3) fixedly connected to its inner wall; Anti-deviation component (2), the anti-deviation component (2) is installed at the bottom end of the inner mold component (1), the anti-deviation component (2) is used for anti-deviation setting of adjacent assembled inner mold components (1); A support mechanism (4) is installed inside the inner mold assembly (1). The support mechanism (4) strengthens the support strength of the inner mold assembly (1). A clamping mechanism (5) is installed at the top of the support mechanism (4). The base plate (6) is fixedly connected to the bottom end of the support mechanism (4).

2. The bridge pier inner formwork as described in claim 1, characterized in that: The inner mold assembly (1) includes a first template (11), a second template (12) and a connector (14). The first template (11) and the second template (12) are fixedly connected by the connector (14). The top sides of the first template (11) and the second template (12) are provided with arc-shaped slots (13).

3. The bridge pier inner formwork as described in claim 2, characterized in that: The connector (14) includes a connector (141), a connector bolt (142), and a connector nut (143). The connector (141) is fixedly connected between the first template (11) and the second template (12). The two connectors (141) are fitted together and the connector bolt (142) passes through them. The connector bolt (142) is threaded onto the end of the connector bolt (142).

4. The bridge pier inner formwork as described in claim 1, characterized in that: The fixed plate (3) has a semi-circular ring structure in its top view section. There are multiple fixed plates (3), and they are equidistantly distributed between adjacent fixed plates (3).

5. The bridge pier inner formwork as described in claim 1, characterized in that: The anti-deviation component (2) includes an arc plate (22), a slide block (24), a sliding column (25), a fixed seat (23), and a spring (26). The arc plate (22) is slidably connected in a sliding cavity (21), and the sliding cavity (21) is opened on the bottom side of the first template (11) and the second template (12). The inner wall of the top of the arc plate (22) is fixedly connected to the slide block (24). The sliding column (25) passes through the surface of the slide block (24). The top side of the slide block (24) is elastically connected to the bottom side of the fixed seat (23) at the top through the spring (26). The fixed seats (23) are fixedly connected to the opposite ends of the sliding column (25). The fixed seats (23) are fixedly connected to the bottom side of the first template (11) and the second template (12).

6. The bridge pier inner formwork as described in claim 5, characterized in that: The arc plate (22) has a circular arc-shaped cross section when viewed from above, and an arc-shaped slot (13) is provided directly above the arc plate (22).

7. The bridge pier inner formwork as described in claim 1, characterized in that: The support mechanism (4) includes a fixed column (41), a support column (42), a slide plate (43), and a locking column (44). The support column (42) is fixedly connected to the side surface of the fixed column (41), and the end of the support column (42) is fixedly connected to the inner wall of the slide plate (43). The locking column (44) is fixedly connected to the top side of the slide plate (43), and the locking column (44) engages with a through hole on the surface of the slide plate (43).

8. The bridge pier inner formwork as described in claim 7, characterized in that: The slide plate (43) has a semi-circular annular cross-section when viewed from above, and the top side of the slide plate (43) is in contact with the bottom side surface of the fixing plate (3).

9. The bridge pier inner formwork as described in claim 7, characterized in that: The top surface of the slide plate (43) is equipped with a plurality of locking posts (44), which are evenly distributed on the top side of the slide plate (43).

10. The bridge pier inner formwork as described in claim 1, characterized in that: The clamping mechanism (5) includes a threaded post (52), a lifting ring (51), and a clamping seat (53). The threaded post (52) is threadedly connected to the top surface of the fixed post (41). The lifting ring (51) is fixedly connected to the top of the threaded post (52). The clamping seat (53) is fixedly connected to the side surface of the top of the threaded post (52). The clamping seat (53) is fitted against the top side of the fixed plate (3).