Device for preventing inner mold of prefabricated small box girder from floating upwards
By designing the device used to prevent the upward floating of the small box beam, the combination of vertical lever, down rod and interior pressure slot steel is used to solve the problem of floating in the prefabricated small box beams, improve the prefabricated efficiency and quality, and ensure that to ensure that The construction requirements are met.
Patent Information
- Application Number
- CN202420186242.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-25
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-01-25
AI Technical Summary
During the pouring of prefabricated small box girders, the concrete floating problem causes the thickness of the top of the box girder to fail to meet the construction requirements, and the protective layer of the bottom and top plate of the small box girder may be insufficient, which may lead to the scrapping of the entire box girder. The responses to prior art are complex and inefficient.
It is designed to prevent the up -to -top models used to prevent the upward of the internal mold of the prefabricated small box beam, including small box beam prefabricated tables, inner molds, vertical tidas rods, down rods, and interior pressure groove steel. By setting up a vertical lever at the top of the small box beam, and connecting with the lower piercing rod and the inner pressure groove steel, the height of the inner pressure groove steel is to generate push force, and fix the inner mold of the small box beam to prevent the upward rise.
It effectively prevents the internal mold of small box beams from floating up, improves the quality and efficiency of prefabricated small box beams, simplifies the installation process, and ensures the design and specification requirements of small box beams.
Smart Images
Figure CN222387206U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of road construction, and in particular relates to a device for preventing an inner mold of a prefabricated small box beam from floating up. Background Art
[0002] During the pouring of prefabricated small box girder concrete, the floating of concrete will cause the thickness of the top of the box girder to be unable to meet the construction requirements. It will also cause insufficient steel bar protection layer on the bottom and top plates of the small box girder, with some steel bars exposed. Therefore, it cannot meet the design and specification requirements, and may even cause the entire box girder to be scrapped.
[0003] Most of the existing countermeasures for the floating of the inner mold are to place heavy objects or set pressure rods on the top of the inner mold. The former is complicated to operate, and the latter requires the use of lifting equipment. The prefabrication efficiency of small box girders is low and the production time is long. Utility Model Content
[0004] In order to solve the above problems existing in the prior art, the utility model aims to provide a device for preventing the inner mold of a prefabricated small box beam from floating up.
[0005] The technical solution adopted by the utility model is: it includes a small box girder prefabricated pedestal, the top of the small box girder prefabricated pedestal is provided with a small box girder inner mold, the top of the small box girder inner mold is provided with an upper through hole, the upper through hole penetrates the small box girder inner mold, a vertical tie rod is installed in the upper through hole, one end of the vertical tie rod is connected with a lower through rod, the lower through rod is inserted and connected to the small box girder prefabricated pedestal, the other end of the vertical tie rod is provided with an inner pressure channel steel, and the inner pressure channel steel is adjustably installed on the vertical tie rod.
[0006] As a preferred embodiment of the utility model, the small box girder prefabricated pedestal is provided with a lower through hole, the lower through hole passes through both ends of the small box girder prefabricated pedestal, the axis of the lower through hole intersects and is perpendicular to the extended line of the axis of the upper through hole, the lower through rod is inserted in the lower through hole, and the distance from the axis of the lower through rod to the two ends of the small box girder prefabricated pedestal is equal.
[0007] As a preferred embodiment of the utility model, a thread is formed on the circumferential surface of the vertical pull rod, a steel bar ring is provided at one end of the vertical pull rod, the steel bar ring is fixedly connected to the vertical pull rod, and the down-through rod is located in the steel bar ring.
[0008] As a preferred embodiment of the utility model, a mounting threaded hole matched with the vertical pull rod is formed on the inner pressure channel steel, and the inner pressure channel steel is sleeved on the vertical pull rod through the mounting threaded hole.
[0009] As a preferred embodiment of the utility model, a bolt is provided at one end of the inner pressure channel steel away from the steel bar ring, and the bolt is threadably matched with the thread formed on the vertical pull rod.
[0010] As a preferred embodiment of the utility model, small box girder bottom plate steel bars are provided between the small box girder inner mold and the small box girder prefabricated pedestal, and the vertical tie rods and the down-through rods avoid the small box girder bottom plate steel bars.
[0011] As a preferred embodiment of the present invention, the bolts are M32 high-strength bolts.
[0012] The beneficial effects of the utility model are:
[0013] 1. The utility model is a device for preventing the inner mold of a prefabricated small box beam from floating up. A lower through hole is penetrated through the side of a prefabricated pedestal of the small box beam, and a lower through rod is inserted in the lower through hole. A vertical tie rod is inserted in the top of the inner mold of the small box beam. One end of the vertical tie rod is connected to the lower through rod, and the other end is matched to connect to the inner pressure channel steel. The position of the inner pressure channel steel at the top of the inner mold of the small box beam is adjustable. By adjusting the height of the inner pressure channel steel on the vertical tie rod, the inner pressure channel steel and the lower through rod are brought close to each other, so that a pushing force is formed on the inner mold of the small box beam toward one side of the prefabricated pedestal of the small box beam, thereby effectively preventing the inner mold of the small box beam from floating up. The utility model has a simple structure. When the small box beam is prefabricated, the inner mold of the small box beam is firmly fixed and easy to install.
[0014] 2. A steel ring is fixed at the bottom of the vertical tie rod. The steel ring is used to connect one end of the vertical tie rod with the lower through rod, so that the lower through rod is inserted into the steel ring to prevent the inner mold of the small box beam from floating up. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0016] Figure 1 It is a schematic diagram of the structural installation structure of the utility model;
[0017] Figure 2 This utility model Figure 1 Schematic diagram of the explosion structure;
[0018] Figure 3 It is a schematic diagram of the assembly structure of some parts of the utility model.
[0019] In the figure: 1. prefabricated pedestal for small box girder; 2. inner mold of small box girder; 3. lower through rod; 4. vertical tie rod; 5. internal pressure channel steel; 6. bolts; 7. bottom plate steel bar of small box girder; 11. lower through hole; 21. upper through hole; 41. thread; 42. steel bar ring; 51. installation thread hole. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0021] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0022] Combine the following Figure 1-3 The specific implementation mode of the utility model is described, a device for preventing the inner mold of a prefabricated small box beam from floating up, comprising a prefabricated pedestal 1 for a small box beam, a concrete pouring space being formed inside the prefabricated pedestal 1 for a concrete pouring, the prefabricated small box beam being formed after the concrete solidifies inside the prefabricated pedestal 1 for a small box beam, a small box beam inner mold 2 being provided on the top of the prefabricated pedestal 1 for a small box beam, the small box beam inner mold 2 limiting the concrete poured inside the prefabricated pedestal 1 for a small box beam, so that the upper end surface of the small box beam formed after the concrete solidifies is flat, an upper through hole 21 being provided on the top of the small box beam inner mold 2, the upper through hole 21 penetrating the small box beam inner mold 2, a vertical tie rod 4 being installed in the upper through hole 21, one end of the vertical tie rod 4 being connected with a lower through rod 3, the lower through rod 3 being inserted and connected to the prefabricated pedestal 1 for a small box beam, the other end of the vertical tie rod 4 being provided with an inner pressure groove Steel 5, the inner pressure channel steel 5 can be adjusted and installed on the vertical tie rod 4, the vertical tie rod 4 is inserted from the upper through hole 21 on the top of the small box girder inner mold 2 into the small box girder prefabricated pedestal 1, and after being inserted into the small box girder prefabricated pedestal 1, one end of the vertical tie rod 4 is connected to the lower through rod 3, the lower through rod 3 is inserted into the small box girder prefabricated pedestal 1 through the lower through hole 11, and cooperates with the lower through rod 3 to realize the connection between the lower through rod 3 and the vertical tie rod 4, the other end of the vertical tie rod 4 is connected to the inner pressure channel steel 5, the inner pressure channel steel 5 and the vertical tie rod 4 can be cooperated, by adjusting the position of the inner pressure channel steel 5 on the vertical tie rod 4, the distance between the lower through rod 3 and the inner pressure channel steel 5 is gradually close, so as to reinforce the small box girder inner mold 2 and the small box girder prefabricated pedestal 1, and prevent the concrete in the small box girder prefabricated pedestal 1 from causing the small box girder inner mold 2 to float.
[0023] Advantageously, a lower through hole 11 is provided on the small box girder prefabricated pedestal 1, and the lower through hole 11 passes through both ends of the small box girder prefabricated pedestal 1. The lower through hole 11 is used for the installation limit of the lower through rod 3 on the small box girder prefabricated pedestal 1, providing a support point for the downward movement of the inner pressure channel steel 5. The axis of the lower through hole 11 intersects and is perpendicular to the extended line of the axis of the upper through hole 21. The lower through rod 3 is inserted in the lower through hole 11, and the distance from the axis of the lower through rod 3 to the two ends of the small box girder prefabricated pedestal 1 is equal, which can make the limit of the inner pressure channel steel 5 on the small box girder inner mold 2 relatively stable.
[0024] Advantageously, the vertical tie rod 4 is a Φ20 diameter finely rolled threaded steel 41, a thread 41 is formed on the circumferential surface of the vertical tie rod 4, a steel bar ring 42 is provided at one end of the vertical tie rod 4, the steel bar ring 42 is fixedly connected to the vertical tie rod 4, the down-through rod 3 is located in the steel bar ring 42, the down-through rod 3 is a Φ20 diameter steel bar, and its length is 20-30 cm longer than the width of the small box girder prefabricated pedestal 1, the down-through rod 3 passes through the down through hole 11 and the steel bar ring 42 at the same time, so that the down-through rod 3 and the vertical tie rod 4 are mutually connected and limited by the steel bar ring 42.
[0025] Advantageously, the inner pressure channel steel 5 is made of 10 channel steel or square steel, and the mounting threaded hole 51 opened in the middle is a hole of about Φ22. The vertical tie rod 4 can pass through the mounting threaded hole 51, and the length is about 0.5m (determined according to the width of the bottom plate of the inner mold 2 of the small box beam); the inner pressure channel steel 5 is formed with a mounting threaded hole 51 that is compatible with the vertical tie rod 4, and the inner pressure channel steel 5 is sleeved on the vertical tie rod 4 through the mounting threaded hole 51, and the inner pressure groove can slide on the vertical tie rod 4 through the mounting threaded hole 51 provided thereon.
[0026] Advantageously, a bolt 6 is provided at one end of the inner pressure channel steel 5 away from the steel bar ring 42, and the bolt 6 cooperates with the thread 41 formed on the vertical tie rod 4. The bolt 6 is used to limit the inner pressure channel steel 5 after sliding adjustment on the vertical tie rod 4. The bolt 6 cooperates with the thread 41 to drive the inner pressure channel steel 5 to slide along the vertical tie rod 4, thereby gradually closing the distance between the inner pressure channel steel 5 and the lower through rod 3 to prevent the small box girder inner mold 2 from floating.
[0027] Advantageously, a small box girder bottom plate steel bar 7 is provided between the small box girder inner mold 2 and the small box girder prefabricated pedestal 1, and the vertical tie rod 4 and the down-through rod 3 avoid the small box girder bottom plate steel bar 7, and the small box girder bottom plate steel bar 7 is used to strengthen the strength formed by the small box girder.
[0028] Advantageously, the bolts 6 are M32 high-strength bolts 6 .
[0029] Working principle of this utility model:
[0030] When prefabricating the small box beam prefabrication pedestal 1, lower through holes 11 are opened on the sides of both ends to provide space for the lower through rod 3 to pass through;
[0031] Before pouring concrete between the small box girder prefabricated pedestal 1 and the small box girder inner mold 2, extend the vertical tie rod 4 into the space formed between the small box girder prefabricated pedestal 1 and the small box girder inner mold 2, make the space between the two lower through holes 11 and the steel ring 42 concentric, and pass the lower through rod 3 through the lower through hole 11 on one side of the small box girder prefabricated pedestal 1, the steel ring 42 and the lower through hole 11 on the other side of the small box girder prefabricated pedestal 1 in sequence, so as to realize the connection between the vertical tie rod 4 and the lower through rod 3;
[0032] Pour concrete into the space formed between the small box beam prefabricated pedestal 1 and the small box beam inner mold 2. After the pouring is completed, cover the small box beam inner mold 2 on the top of the small box beam prefabricated pedestal 1, and pass the vertical tie rod 4 through the upper through hole 21;
[0033] The inner pressure channel steel 5 is slid down along the vertical tie rod 4 until it fits with the top of the small box beam inner mold 2, and then the bolt 6 is matched with the thread 41 formed on the vertical tie rod 4, and the bolt 6 is screwed to fit with the top of the inner pressure channel steel 5. The bolt 6 is continued to be screwed to drive the inner pressure channel steel 5 to move downward, and the distance between the lower through rod 3 and the inner pressure channel steel 5 is gradually shortened by rotating the bolt 6, thereby achieving reinforcement between the small box beam inner mold 2 and the small box beam prefabrication pedestal 1, preventing the small box beam inner mold 2 from floating up, improving the overall quality of the small box beam prefabrication, and reducing the prefabrication compliance rate.
[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. 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 an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0035] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.
Claims
1. A device for preventing the inner mold of a prefabricated small box beam from floating up, characterized in that: It includes a small box girder prefabricated pedestal, the top of the small box girder prefabricated pedestal is provided with a small box girder inner mold, the top of the small box girder inner mold is provided with an upper through hole, the upper through hole penetrates the small box girder inner mold, a vertical tie rod is installed in the upper through hole, one end of the vertical tie rod is connected with a lower through rod, the lower through rod is inserted and connected to the small box girder prefabricated pedestal, the other end of the vertical tie rod is provided with an inner pressure channel steel, and the inner pressure channel steel is adjustably installed on the vertical tie rod.
2. The device for preventing the inner mold of a prefabricated small box beam from floating up according to claim 1 is characterized in that: The small box girder prefabricated pedestal is provided with a lower through hole, which passes through both ends of the small box girder prefabricated pedestal, the axis of the lower through hole intersects and is perpendicular to the extended line of the axis of the upper through hole, the lower through rod is inserted in the lower through hole, and the distance from the axis of the lower through rod to the two ends of the small box girder prefabricated pedestal is equal.
3. The device for preventing the inner mold of a prefabricated small box beam from floating up according to claim 2 is characterized in that: The circumferential surface of the vertical pull rod is formed with threads, one end of the vertical pull rod is provided with a steel bar ring, the steel bar ring is fixedly connected to the vertical pull rod, and the down-through rod is located in the steel bar ring.
4. The device for preventing the inner mold of a prefabricated small box beam from floating up according to claim 1, characterized in that: The inner pressure channel steel is formed with a mounting threaded hole matched with the vertical pull rod, and the inner pressure channel steel is sleeved on the vertical pull rod through the mounting threaded hole.
5. The device for preventing the inner mold of a prefabricated small box beam from floating up according to claim 3 is characterized in that: A bolt is provided at one end of the inner pressure channel steel away from the steel bar ring, and the bolt is threadably matched with the thread formed on the vertical pull rod.
6. The device for preventing the inner mold of a prefabricated small box beam from floating up according to claim 5, characterized in that: Small box girder bottom plate reinforcement is arranged between the small box girder inner mold and the small box girder prefabricated pedestal, and the vertical tie rod and the down-through rod avoid the small box girder bottom plate reinforcement.
7. The device for preventing the inner mold of a prefabricated small box beam from floating up according to claim 5, characterized in that: The bolts are M32 high-strength bolts.