Pier body steel formwork with external pull rods

By introducing a formwork body, assembly plate, and tie rod adjustment components into the steel formwork of bridge piers, the problems of grout leakage and low disassembly efficiency were solved, enabling flexible adjustment of the formwork spacing and convenient disassembly, thus improving construction efficiency and the aesthetics of the finished product.

CN223510271UActive Publication Date: 2025-11-04SHANDONG YIGUANG CONSTR FORMWORK CO LTD
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Patent Information

Application Number
CN202422836490.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-11-04
Estimated Expiration
2034-11-20

AI Technical Summary

Technical Problem

In the construction of existing bridge piers, steel formwork is prone to grout leakage when pouring concrete, and the efficiency of bolt disassembly and assembly is low, which affects construction efficiency and the appearance of the finished product.

Method used

The system uses a template body, assembly plate, fixing bolts, and tie rod adjustment components. The template spacing is adjusted by the tie rod adjustment components, avoiding the need for opening holes for pouring. The fixing bolts and threaded connections enable flexible adjustment of the template spacing, simplifying the assembly and disassembly process.

Benefits of technology

It effectively avoids grout leakage, improves construction efficiency, simplifies the disassembly and assembly process of formwork, and adapts to size adjustments for different molding requirements.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223510271U_ABST
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Abstract

The utility model discloses a pier body steel formwork with external pull rods, which comprises two formwork main bodies, the two formwork main bodies are arranged in a bilateral symmetry mode, a plurality of mounting holes are formed in the outer side walls of the formwork main bodies, and assembling plates are fixedly welded on the back faces of the two formwork main bodies. First screw holes are formed in the front side walls of the assembling plates in a penetrating mode, fixing bolts are connected to the inner side walls of the first screw holes in a threaded mode, a pull rod adjusting assembly is arranged between the two formwork bodies, and the pull rod adjusting assembly is matched with the sliding grooves in a limiting mode. By arranging the formwork bodies, the assembling plates, the fixing bolts and the pull rod adjusting assemblies, during use, the distance between the two formwork bodies can be adjusted through the pull rod adjusting assemblies, it is not needed to carry out trepanning to affect cement pouring, the situation of slurry leakage is avoided, dismounting and mounting are convenient, assembling and adjusting can be matched with the formwork bodies, and the practicability is high. The device can be adjusted according to the size required by forming and is simple and practical in structure.
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Description

Technical Field

[0001] This utility model relates to the field of pier steel formwork technology, and in particular to a pier steel formwork with external tie rods. Background Technology

[0002] In existing bridge pier construction, to ensure the safety of the steel formwork structure during concrete construction, installation holes need to be drilled in the steel formwork, and tie bolts are inserted to fix the formwork. When pouring cement between two steel formwork pieces, cement may flow out from the installation holes, resulting in grout leakage, which affects the appearance of the finished product. Furthermore, the bolts need to be disassembled and reassembled one by one, resulting in low processing efficiency. Utility Model Content

[0003] To overcome the shortcomings of the existing technology, one of the objectives of this utility model is to provide a steel formwork for a pier body with external tie rods. Through the set formwork body, assembly plate, fixing bolts, and tie rod adjustment components, the distance between the two formwork bodies can be adjusted by using the tie rod adjustment components during use. There is no need to make holes to affect the pouring of cement, avoiding the leakage of grout. It is also easy to assemble and disassemble, can be assembled and adjusted with the formwork body, and can be adjusted according to the size required for molding. The structure is simple and practical.

[0004] One of the objectives of this utility model is achieved by the following technical solution: a steel template for a pier body with an external tie rod, comprising: a template body, two template bodies arranged symmetrically on the left and right, each template body having several mounting holes on its outer sidewall, an assembly plate welded and fixed to the opposite sides of each of the two template bodies, a screw hole through the front sidewall of each assembly plate, a fixing bolt threaded to the inner sidewall of the screw hole, and a tie rod adjustment assembly provided between the two template bodies, the tie rod adjustment assembly being matched with a sliding groove for limiting.

[0005] The tie rod adjustment assembly includes a grooved plate. Lead screws are rotatably connected to the inner walls of both sides of the grooved plate. One end of the lead screw is fixedly connected to a rotating handle. A displacement plate is threadedly connected to the outer wall of the lead screw. A fixing plate is welded and fixed to the front wall of the grooved plate. Slider blocks are provided on the opposite surfaces of the fixing plate and the displacement plate, and each slider has two screw holes at its front end. Through the provided template body, assembly plate, fixing bolts, and tie rod adjustment assembly, the distance between the two template bodies can be adjusted during use without needing to drill holes that would affect cement pouring, thus avoiding grout leakage. It is also easy to assemble and disassemble, can be assembled and adjusted with the template body, and can be adjusted to the required dimensions for molding. The structure is simple and practical.

[0006] According to the aforementioned steel template for an external tie rod, all the sliders are adapted to slide with the groove.

[0007] According to the steel template of the pier body of the external tie rod, the positions of the screw hole one and the screw hole two are corresponding, and the inner side wall of the screw hole two is threadedly matched with the outer side wall of the fixing bolt.

[0008] A steel formwork for a pier body with an external tie rod is provided. Several support pipes are welded and fixed to the outer side wall of the main body of the formwork in both horizontal and vertical rows to improve the support strength.

[0009] According to the aforementioned steel formwork for an external tie rod, the outer wall of the displacement plate is slidably connected to the inner wall of the groove plate.

[0010] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0012] Figure 1 This is a perspective view of a steel formwork for a pier body with an external tie rod according to the present invention;

[0013] Figure 2 This is a three-dimensional view of the main body of the steel formwork for the pier body with external tie rods according to this utility model;

[0014] Figure 3 This is a perspective view of a tie rod adjustment assembly for an external tie rod pier steel formwork according to the present invention;

[0015] Figure 4 This is an assembly drawing of a steel template for a pier body with an external tie rod according to the present invention.

[0016] Legend:

[0017] 1. Template body; 2. Assembly plate; 3. Fixing bolt; 4. Tie rod adjustment assembly; 101. Mounting hole; 201. Slide groove; 202. Screw hole one; 401. Slot plate; 402. Lead screw; 403. Displacement plate; 404. Fixing plate; 405. Slider; 406. Screw hole two; 407. Rotary handle. Detailed Implementation

[0018] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0019] Reference Figure 1-4This utility model embodiment provides a steel template for a pier body with external tie rods, comprising: a template body 1, with several support pipes welded and fixed horizontally and vertically on the outer side walls of the template body 1, two template bodies 1 arranged symmetrically on the left and right, several mounting holes 101 opened on the outer side walls of the template body 1, and assembly plates 2 welded and fixed on the opposite sides of the two template bodies 1, with screw holes 202 through the front side walls of the assembly plates 2, and fixing bolts 3 threadedly connected to the inner side walls of the screw holes 202, and a tie rod adjustment assembly 4 provided between the two template bodies 1, the tie rod adjustment assembly 4 being limited and matched with the sliding groove 201;

[0020] The pull rod adjustment assembly 4 includes a groove plate 401. A lead screw 402 is rotatably connected through the inner walls of the left and right sides of the groove plate 401. A handle 407 is fixedly connected to one end of the lead screw 402. A displacement plate 403 is threadedly connected through the outer wall of the lead screw 402. The outer wall of the displacement plate 403 is slidably connected to the inner wall of the groove plate 401. A fixing plate 404 is welded and fixed to the front wall of the groove plate 401. A slider 405 is provided on the opposite side of the fixing plate 404 and the displacement plate 403. The sliders 405 are all slidably adapted to the groove 201. A second screw hole 406 is opened at the front end of each slider 405. The positions of the first screw hole 202 and the second screw hole 406 are corresponding. The inner wall of the second screw hole 406 is threadedly adapted to the outer wall of the fixing bolt 3. The template body 1, assembly plate 2, fixing bolt 3, and tie rod adjustment assembly 4 are configured for use. During use, adjacent template bodies 1 are assembled and connected using mounting holes 101 and bolts. The template bodies 1 on both sides are then symmetrically arranged. The two sliders 405 of the tie rod adjustment assembly 4 are slidably inserted into the grooves 201 of the two assembly plates 2. Next, the fixing bolt 3 is threaded into screw holes 202 and 406 to complete the assembly. To adjust the distance between the two template bodies 1, the handle 407 is rotated to drive the lead screw 402, which, in conjunction with the limiting action of the groove plate 401, moves the displacement plate 403, allowing for free adjustment of the distance between the two template bodies 1. This eliminates the need for drilling holes that could affect cement pouring, preventing grout leakage. Furthermore, it is easy to assemble and disassemble, can be adjusted in conjunction with the template body 1, and can be adjusted to meet the required molding dimensions. The structure is simple and practical.

[0021] Working principle: In use, the adjacent template bodies 1 are assembled and connected using the mounting holes 101 and bolts. Then, the template bodies 1 on both sides are symmetrically arranged. The two sliders 405 of the tie rod adjustment component 4 are slidably inserted into the grooves 201 of the two assembly plates 2 respectively. Next, the assembly is completed by using the fixing bolts 3 to engage with the screw holes 202 and 406. When adjusting the distance between the two template bodies 1, the rotating handle 407 drives the lead screw 402 to rotate. With the limit of the groove plate 401, the displacement plate 403 moves, and the distance between the two template bodies 1 can be freely adjusted. After adjustment, the external side plate is closed, and cement can be poured. There is no need to open holes to affect the cement pouring, avoiding grout leakage. It is also easy to assemble and disassemble, and can be assembled and adjusted with the template body 1. It can be adjusted according to the size required for molding. The structure is simple and practical.

[0022] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A steel formwork for a pier with external tie rods, comprising: The template body (1) is characterized in that the two template bodies (1) are arranged symmetrically on the left and right, and the outer side wall of each template body (1) is provided with a plurality of mounting holes (101). The back sides of the two template bodies (1) are welded and fixed with assembly plates (2). The front side wall of each assembly plate (2) is provided with a through screw hole (202). The inner side wall of the screw hole (202) is threaded with a fixing bolt (3). A pull rod adjustment assembly (4) is provided between the two template bodies (1). The pull rod adjustment assembly (4) is limited and matched with the slide groove (201). The pull rod adjustment assembly (4) includes a groove plate (401). A lead screw (402) is rotatably connected through the inner walls of the left and right sides of the groove plate (401). A handle (407) is fixed to one end of the lead screw (402). A displacement plate (403) is threadedly connected through the outer wall of the lead screw (402). A fixing plate (404) is welded and fixed to the front side wall of the groove plate (401). A slider (405) is provided on the opposite side of the fixing plate (404) and the displacement plate (403). A screw hole (406) is provided at the front end of each slider (405).

2. The pier steel formwork with external tie rods according to claim 1, characterized in that, The sliders (405) are all adapted to slide with the grooves (201).

3. The pier steel formwork with external tie rods according to claim 1, characterized in that, The positions of screw hole one (202) and screw hole two (406) are corresponding, and the inner side wall of screw hole two (406) is threaded to the outer side wall of the fixing bolt (3).

4. The pier steel formwork with external tie rods according to claim 1, characterized in that, The outer side wall of the template body (1) is equipped with several support pipes that are welded and fixed in both horizontal and vertical rows.

5. The pier steel formwork with external tie rods according to claim 1, characterized in that, The outer wall of the displacement plate (403) is slidably connected to the inner wall of the groove plate (401).