I-shaped steel back-jacking adjusting device
By combining the jack and hydraulic pump system with the I-beam, the adaptability and material loss problems of the I-beam return measures were solved, flexible adjustment and stability were improved, and construction costs were reduced.
Patent Information
- Application Number
- CN202422996744.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-05
AI Technical Summary
The existing I-beam top-return measures have poor adaptability, high material loss rate, cumbersome construction procedures and affect material performance and stability.
A jack and hydraulic pump system is used in conjunction with the I-beam, and the length of the I-beam is adjusted through screws and nuts to avoid cutting and welding, and reinforcement plates are used to enhance stability.
It realizes flexible adjustment of I-beams, reduces material loss, improves construction efficiency and overall stability, and reduces construction costs.
Smart Images
Figure CN223482344U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction, and in particular to an adjustment device for the top of an I-beam. Background Technology
[0002] Post-cast strips are temporary construction joints set up during the construction of cast-in-place concrete structures to prevent harmful cracks that may occur due to temperature, shrinkage, and settlement. These joints need to be left for a period of time before pouring concrete, so backfilling measures need to be set on both sides before pouring concrete.
[0003] I-beam backfilling is a common backfilling method. The conventional approach involves selecting an I-beam of appropriate length based on the height of the backfill location. If a suitable length is unavailable, it is cut and welded to create a suitable length for use. During backfilling, a steel plate is placed on top to secure the I-beam, and then a concrete pier is poured at the bottom. However, this existing technology has the following drawbacks:
[0004] (1) Poor adaptability: When faced with different backing heights of basements or floors in engineering projects, the backing height of I-beams can only be adjusted by cutting and welding, resulting in poor adaptability.
[0005] (2) High material loss rate. I-beams can be reused many times, but frequent cutting and welding will affect the service life of the material and reduce the number of reuses, resulting in a high loss rate of I-beams.
[0006] (3) The construction process is complicated, with many cutting and welding procedures. Due to insufficient cutting and welding precision, gaps are likely to exist at the top of the I-beam.
[0007] (4) It has a great impact on the material properties. The properties of the I-beam formed by cutting and welding are significantly weakened compared to the original material properties. If the welding parts are on the same plane during installation, it will affect the overall stability of the I-beam. Utility Model Content
[0008] To address the aforementioned technical problems, this utility model provides an I-beam top adjustment device.
[0009] The technical solution includes an I-beam, a base plate fixedly installed at the bottom of the I-beam, a top plate fixedly installed at the top, a jack fixedly installed in the middle of the top plate, the fixed part of the jack being fixedly connected to the top plate, and a support plate fixedly installed on the movable part of the jack.
[0010] The jack has a connecting hole on its fixed part, and the jack is connected to the hydraulic pump through the connecting hole.
[0011] Preferably, a through-hole is provided at each of the four corners of the top plate;
[0012] Preferably, a screw is fixedly provided at each of the four corners of the tray, with each screw corresponding to one of the limiting holes, and the screw passes through the limiting hole and extends to the bottom of the top plate.
[0013] Preferably, a nut is threaded onto the screw, and the nut is located below the top plate.
[0014] Preferably, the I-beam is fixedly connected to the top plate and the bottom plate by a number of reinforcing plates.
[0015] Preferably, a mounting hole is provided at each of the four corners of the base plate.
[0016] The beneficial effects of the technical solution provided by this utility model embodiment are: it adapts to different back-top heights of basements or floors in different engineering projects, with strong adaptability; at the same time, the I-beams do not need to be cut or welded during the adjustment process, reducing the loss rate of I-beam materials, enhancing the overall stability of the back-top support, and effectively ensuring the turnover rate of the I-beams; the operation is simple and quick, and no chiseling is required during dismantling, resulting in low construction costs. Attached Figure Description
[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present utility model.
[0018] The attached diagram is labeled as follows: 1. Support plate; 2. Top plate; 3. Bottom plate; 301. Mounting hole; 4. I-beam; 5. Jack; 501. Connecting hole; 6. Screw; 601. Nut; 7. Reinforcing plate. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are only for explaining this utility model and are not intended to limit it.
[0020] It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.
[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; 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 this utility model based on the specific circumstances.
[0023] Example 1
[0024] See Figure 1 This utility model provides an I-beam return adjustment device, including an I-beam 4, a bottom plate 3 fixedly installed at the bottom of the I-beam 4, a top plate 2 installed at the top, a jack 5 fixedly installed in the middle of the top plate 2, the fixed part of the jack 5 being fixedly connected to the top plate 2, and a support plate 1 fixedly installed on the movable part of the jack 5.
[0025] The jack 5 has a connection hole 501 on its fixed part, and the jack 5 is connected to the hydraulic pump through the connection hole 501.
[0026] A through-hole is provided at each of the four corners of the top plate 2;
[0027] A screw 6 is fixedly installed at each of the four corners of the tray 1, with one limiting hole corresponding to each screw 6. The screw 6 passes through the limiting hole and extends to the bottom of the top plate 2.
[0028] A nut 601 is threaded onto the screw 6, and the nut 601 is located below the top plate 2.
[0029] The I-beam 4 is fixedly connected to the top plate 2 and the bottom plate 3 by several reinforcing plates 7.
[0030] A mounting hole 301 is provided at each of the four corners of the base plate 3.
[0031] When this utility model is used, after the I-beam 4 is connected to the upper jack 5, it is placed between the floor slabs. The bottom is bolted to the floor slab through the mounting hole 301, and the upper jack 5 is connected to the hydraulic pump through the connection hole 501. By applying pressure, the support plate 1 is lifted upward, thereby filling the gap between it and the top plate and ensuring the effectiveness of the jacking.
[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A back-mounting adjustment device for I-beams, characterized in that, Includes an I-beam (4), with a base plate (3) fixedly installed at the bottom of the I-beam (4) and a top plate (2) installed at the top. A jack (5) is fixedly installed in the middle of the top plate (2), with the fixed part of the jack (5) fixedly connected to the top plate (2), and a support plate (1) fixedly installed on the movable part of the jack (5). The jack (5) has a connecting hole (501) on its fixed part, and the jack (5) is connected to the hydraulic pump through the connecting hole (501).
2. The I-beam return adjustment device according to claim 1, characterized in that, The top plate (2) has a through-hole at each of its four corners.
3. The I-beam return adjustment device according to claim 2, characterized in that, A screw (6) is fixedly installed at each of the four corners of the tray (1), and each screw (6) corresponds to one of the limiting holes. The screw (6) passes through the limiting hole and extends to the bottom of the top plate (2).
4. The I-beam return adjustment device according to claim 3, characterized in that, A nut (601) is threaded onto the screw (6), and the nut (601) is located below the top plate (2).
5. The I-beam return adjustment device according to claim 1, characterized in that, The I-beam (4) is fixedly connected to the top plate (2) and the bottom plate (3) by a number of reinforcing plates (7).
6. The I-beam return adjustment device according to claim 1, characterized in that, The base plate (3) has a mounting hole (301) at each of its four corners.