A device for pushing an inner mold of a hollow precast pier
Patent Information
- Application Number
- CN202522384712.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-11
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-11-11
AI Technical Summary
[0002]传统空心预制墩柱使用的内模板浇筑时位于钢筋笼内模板插孔内，在空心预制墩柱混凝土浇筑前需将内模板置在钢筋笼内模板插孔内，内模板体积大、重量沉，现内模板置在钢筋笼内模板插孔内时均为人工抬起穿插进行，不但费时费力，施工效率低，安全性差，还极易破坏钢筋笼结构，影响空心预制墩柱质量，同时空心预制墩柱浇筑后，取出内模板亦存在上述问题
1，本实用新型使用时，移至钢筋笼一端，两导向门架位于钢筋笼进口端，使两导向门架中轴线位置与钢筋笼内模板插孔中轴线位置在同一直线上，将内模板放置在辊轮架的各辊轮上，推动内模板在各辊轮向前移动，使内模板前端依次穿过两导向门架，在两导向门架上各导向轮和侧导向轮的限位支顶作用下，将内模板从钢筋笼内模板插孔中推进钢筋笼内，完成内模板的安装，反之为拆模。本实用新型将内模板的安装改为机械化，解决了人工抬起穿插内模板的不足问题，具有结构简单，内模板操作省时省力、施工效率高和使用效果好的优点。
Smart Images
Figure CN224856103U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an inner mold pushing device for hollow precast piers. Background Technology
[0002] Traditional hollow precast piers use inner formwork located inside the formwork insertion holes of the reinforcing cage during pouring. Before pouring the concrete for the hollow precast pier, the inner formwork needs to be placed inside the formwork insertion holes of the reinforcing cage. The inner formwork is large and heavy. Currently, the inner formwork is manually lifted and inserted into the formwork insertion holes of the reinforcing cage, which is not only time-consuming and labor-intensive, but also has low construction efficiency and poor safety. It is also very easy to damage the reinforcing cage structure and affect the quality of the hollow precast pier. At the same time, the above problems also exist when removing the inner formwork after the hollow precast pier is poured. Summary of the Invention
[0003] The purpose of this invention is to design an inner mold pushing device for hollow precast piers, which can solve the above-mentioned problems and has the advantages of simple structure, time-saving and labor-saving operation of inner mold, high construction efficiency and good use effect.
[0004] Therefore, an inner mold pushing device for hollow precast piers includes a transport vehicle and an inner mold. The transport vehicle consists of an upper frame, a lower frame, connecting rods, and wheels. The upper and lower frames are rectangular. The lower ends of the two sides of the upper frame and the upper ends of the two sides of the lower frame are connected by several connecting rods. The lower ends of the lower frame at the lower ends of the connecting rods are provided with corresponding axle seats. An axle is axled between the two axle seats. Wheels are provided at both ends of the axle. The upper frame is a roller frame. The roller frame is composed of several horizontal support rods arranged at intervals and several longitudinal support rods that divide adjacent horizontal support rods at intervals. Adjacent horizontal support rods and longitudinal support rods enclose a space for placing rollers. A shaft is provided in the middle of the two longitudinal support rods in each roller space. A roller is axled on the shaft. Two guide gantry frames are provided at intervals at the upper front part of the upper frame near the steel cage frame. The upper end of each guide gantry frame and the middle of the shafts on both sides are shafts. Upper guide wheels and side guide wheels are axled on the shafts respectively.
[0005] As a preferred embodiment of this utility model, the inner template moves on each roller of the roller frame.
[0006] As a preferred embodiment of this utility model, the central axes of the two guide gantry frames are on the same straight line.
[0007] As a preferred embodiment of this utility model, a diagonal reinforcing bar is provided between adjacent connecting rods.
[0008] As a preferred embodiment of this utility model, the roller, upper guide wheel and side guide wheel are rubber wheels or metal wheels.
[0009] As a preferred embodiment of this utility model, the distance between the two guide gantry frames is 1 to 1.5 m.
[0010] Compared with the prior art, the beneficial effects that this utility model can achieve are: 1. In use, this utility model is moved to one end of the reinforcing cage, with the two guide frames positioned at the inlet end of the reinforcing cage. The central axis of the two guide frames is aligned with the central axis of the inner template insertion hole in the reinforcing cage. The inner template is placed on the rollers of the roller frame, and pushed forward on each roller, allowing the front end of the inner template to pass through the two guide frames sequentially. Under the limiting and supporting action of the guide wheels and side guide wheels on the two guide frames, the inner template is pushed into the reinforcing cage from the inner template insertion hole, completing the installation of the inner template. The reverse process is demolding. This utility model mechanizes the installation of the inner template, solving the problem of manually lifting and inserting the inner template. It has the advantages of simple structure, time-saving and labor-saving operation of the inner template, high construction efficiency, and good performance.
[0011] 2. This utility model has low manufacturing cost, can be made from waste materials, and is easy to install and dismantle, simple to operate, and economical.
[0012] 3. This utility model has a wide range of applications and can be used for the installation of internal formwork in the prefabrication of hollow pier columns of different sizes and cross sections, and it is highly safe. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a schematic diagram of the front-end usage state structure of this utility model. Detailed Implementation Plan
[0014] The present invention will be further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of the present invention and not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of the present invention. Unless otherwise specified, the materials, reagents, etc., used in the following embodiments are commercially available. Furthermore, unless otherwise explicitly stated and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.
[0015] like Figures 1 to 3 As shown, an inner mold pushing device for hollow precast piers includes a transport vehicle and an inner mold 1. The transport vehicle consists of an upper frame 12, a lower frame 10, connecting rods 13, and 4 to 6 wheels 15. The upper and lower frames are rectangular. The lower ends of both sides of the upper frame 12 are connected to the upper ends of both sides of the lower frame 10 by several connecting rods 13. Diagonal reinforcing rods 14 are provided between adjacent connecting rods to increase the connection strength. The lower end of the lower frame at the lower end of the connecting rod is provided with an axle seat, and an axle 8 is provided between two axle seats. Wheels 15 are provided at both ends of the axle.
[0016] The upper frame is a roller frame, which consists of several horizontal support rods 18 arranged at intervals and several longitudinal support rods 17 that divide adjacent horizontal support rods at intervals. Two adjacent horizontal support rods and longitudinal support rods enclose a roller placement space 19. A shaft 11 is provided in the middle of the two longitudinal support rods in each roller placement space 19, and a roller 9 is mounted on the shaft. The inner template moves on each roller of the roller frame.
[0017] Two guide gantry frames 3 are provided at an interval on the upper front part of the upper frame near the billet assembly frame 16. The distance between the two guide gantry frames is 1 to 1.5 m. The central axis of the two guide gantry frames is on the same straight line. The upper end of each guide gantry frame and the middle of the side shafts are shafts 4. The shafts 4 are respectively equipped with upper guide wheels 2 and side guide wheels 5. The function of the guide gantry frames is to limit and support the inner template.
[0018] Each roller, upper guide roller, and side guide roller is made of rubber or metal.
[0019] The central axes of the two guide gantry frames are on the same straight line.
[0020] In use, the present invention is moved to one end of the reinforcing cage 6, with the two guide gantry frames located at the inlet end of the reinforcing cage, so that the central axis of the two guide gantry frames is aligned with the central axis of the inner template insertion hole 7 in the reinforcing cage. The inner template 1 is placed on each roller of the roller frame, and the inner template is pushed forward on each roller so that the front end of the inner template passes through the two guide gantry frames in sequence. Under the limiting support of the guide wheels and side guide wheels on the two guide gantry frames, the inner template is pushed into the reinforcing cage from the inner template insertion hole in the reinforcing cage, thus completing the installation of the inner template. The reverse is demolding.
[0021] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. An inner mold pushing device for hollow precast piers, comprising a transport vehicle and an inner mold, characterized in that: The transport vehicle consists of an upper frame, a lower frame, connecting rods, and wheels. The upper and lower frames are rectangular. The lower ends of the two sides of the upper frame and the upper ends of the two sides of the lower frame are connected by several connecting rods. The lower ends of the lower frame at the lower ends of the connecting rods are provided with axle seats. An axle is axled between the two axle seats. Wheels are provided at both ends of the axle. The upper frame is a roller frame. The roller frame is composed of several horizontal support rods arranged at intervals and several longitudinal support rods that divide adjacent horizontal support rods at intervals. Adjacent horizontal support rods and longitudinal support rods enclose a space for placing rollers. A shaft is provided in the middle of the two longitudinal support rods in each roller space. A roller is mounted on the shaft. Two guide masts are provided at intervals at the upper front part of the upper frame near the steel cage frame. The upper end of each guide mast and the middle of the shafts on both sides are shafts. Upper guide wheels and side guide wheels are mounted on the shafts respectively.
2. The inner mold pushing device for hollow precast piers as described in claim 1, characterized in that: The inner template moves on each roller of the roller frame.
3. The inner mold pushing device for hollow precast piers as described in claim 1, characterized in that: The central axes of the two guide gantry frames are on the same straight line.
4. The inner mold pushing device for hollow precast piers as described in claim 1, characterized in that: A diagonal reinforcing bar is provided between adjacent connecting rods.
5. The inner mold pushing device for hollow precast piers as described in claim 1, characterized in that: The rollers, upper guide rollers, and side guide rollers are rubber wheels or metal wheels.
6. The inner mold pushing device for hollow precast piers as described in claim 1, characterized in that: The distance between the two guide gantry frames is 1 to 1.5 m.