Beam bottom back-jacking supporting device
By using an adjustable beam bottom support device, channel steel and a top support mechanism are used to solve the problems of heavy and wasteful steel pipe top support, thus achieving convenient and efficient construction.
Patent Information
- Application Number
- CN202520179977.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-05
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-05
Smart Images

Figure CN223838674U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building construction technology, and specifically relates to a beam bottom back support device. Background Technology
[0002] During the construction of building structures, beams, as the main load-bearing components, are crucial to the safety of the overall structure through their installation and support. Currently, steel pipes are used to directly jack up the bottom of beams at construction sites. However, steel pipe jacking is cumbersome, and due to the varying beam heights, it is difficult to select the appropriate size of the jacking steel pipes. Sometimes, steel pipes need to be cut to meet construction requirements, resulting in a high rate of steel pipe wastage and serious material waste. In addition, during construction, the steel pipes under the beams are extremely dense after jacking up the bottom, which is not conducive to on-site construction passage.
[0003] Therefore, we have improved upon the traditional beam bottom jacking method and proposed an adjustable beam bottom jacking support device. Utility Model Content
[0004] The purpose of this invention is to provide a beam bottom back support device to solve the above-mentioned problems existing in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A beam bottom support device includes two channel steels, each of which has a long slot along its length in the middle, and several top support mechanisms are vertically installed between the two channel steels through the slot.
[0007] The top support mechanism includes a galvanized pipe and a threaded rod inserted inside the galvanized pipe. A U-shaped top support is installed at the top of the threaded rod, and a screw clip is threaded onto the threaded rod.
[0008] The galvanized pipe is provided with an installation platform on the outside that matches the groove.
[0009] Furthermore, the two channel steels are designed with their backs facing each other, and both ends of the two channel steels are provided with mounting holes. The two ends of the two channel steels are fixed by fixing bolts that fit into the mounting holes.
[0010] Furthermore, the mounting platform is located in the middle of the galvanized pipe, and the mounting platform includes a square support block welded to the galvanized pipe.
[0011] Furthermore, reinforcing angle irons are welded to the top and bottom of the support block around the circumference of the galvanized pipe.
[0012] Furthermore, both sides of the support block are support platforms, which are slidably inserted into the slot. A threaded post is horizontally welded to the outside of the support platform, and a locking nut is screwed onto the external thread of the threaded post after the end of the threaded post passes through the slot.
[0013] Furthermore, a raised groove edge is integrally formed along the edge of the groove opening on the side of the channel steel away from the top support mechanism, and the width of the support platform is consistent with the thickness of the channel steel.
[0014] Furthermore, the thickness of the support platform is adapted to the width of the groove on the channel steel.
[0015] Furthermore, the screw clip includes an operating handle and a hexagonal nut, the hexagonal nut being integrally formed on the top of the operating handle, and the screw clip being located at the top of the galvanized pipe.
[0016] Beneficial effects:
[0017] This utility model adopts a fixed support form, utilizing the fasteners or socket plates of existing support structures such as ring-lock frames, disc-lock frames, and steel pipe frames used in on-site construction as support points. This effectively reduces the number of steel pipes at the bottom of the beam, avoiding excessive steel density that could obstruct construction passage. Furthermore, it uses channel steel as the support base, with fasteners or socket plates on the on-site ring-lock frames, disc-lock frames, and steel pipe frames serving as support points. Combined with the groove design on the channel steel and the corresponding top support mechanism structure, it effectively reduces the waste of steel pipes due to varying beam bottom heights. Moreover, the device is simple to use, easy and quick to install, and allows for arbitrary adjustment of the spacing between the top support mechanisms according to the spacing of different sized frames. This effectively solves the tedious and complex operation procedures of beam bottom jacking, while simultaneously reducing the amount of steel pipes used at the bottom of the beam, facilitating on-site construction. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a beam bottom top support device according to the present invention;
[0019] Figure 2 This is a half-sectional structural diagram of a beam bottom top support device according to the present invention;
[0020] Figure 3 This is a schematic diagram of the top support mechanism in a beam bottom top support device of this utility model.
[0021] In the diagram: 1. Channel steel; 2. Mounting hole; 3. Groove opening; 4. Groove edge; 5. Fixing bolt; 6. Galvanized pipe; 601. Support block; 602. Reinforcing angle iron; 603. Support platform; 604. Threaded post; 605. Locking nut; 7. Threaded rod; 8. U-shaped top support; 9. Screw clip; 901. Operating handle; 902. Hexagonal nut. Detailed Implementation
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.
[0023] Example:
[0024] Currently, the direct steel pipe jacking method used for beam bottom jacking during construction is cumbersome. Furthermore, due to varying beam heights, selecting the appropriate steel pipe size is difficult, often requiring the removal of sections to meet construction requirements, resulting in high pipe wastage and material waste. Additionally, the dense arrangement of steel pipes under the beams hinders on-site access. Therefore, we propose an adjustable beam bottom jacking support device to improve upon the traditional method.
[0025] like Figure 1-3 As shown, this embodiment provides a beam bottom support device, including two channel steels 1, which are designed with their backs facing each other. Both ends of the two channel steels 1 have mounting holes 2, and the ends of the two channel steels 1 are fixed by fixing bolts 5 in conjunction with the mounting holes 2. The channel steels 1 serve as the support base for the entire device. The middle of each of the two channel steels 1 has a long, narrow slot 3 along its length. Several top support mechanisms are vertically installed between the two channel steels 1 through the slots 3. The slots 3 act as guide rails for installing the top support mechanisms and adjusting their position on the channel steels 1. During installation, the support base formed by the two channel steels 1 is secured at both ends with fixing bolts 5 to the fasteners or inserts of the on-site erected ring-lock frame, disc-lock frame, or steel pipe frame. The fasteners or inserts serve as support points, making installation convenient and effectively reducing the number of steel pipes at the bottom of the beam, thus avoiding excessive steel density that could obstruct construction passage.
[0026] In order to enable the device to adapt to beams of different heights, its top support mechanism adopts a telescopic design, such as... Figure 3As shown, its top support mechanism includes a galvanized pipe 6 and a threaded rod 7 inserted inside the galvanized pipe 6. A U-shaped top support 8 is installed at the top of the threaded rod 7, and a screw clip 9 is threaded onto the threaded rod 7. An installation platform that mates with the slot 3 is provided on the outer side of the galvanized pipe 6. The installation platform is located in the middle of the galvanized pipe 6, and includes a square support block 601 welded to the galvanized pipe 6. Both sides of the support block 601 are support platforms 603. The support platforms 603 are slidably inserted into the slot 3, and the outer side of the support platforms 603 is water-resistant. A threaded post 604 is welded flat. After the end of the threaded post 604 passes through the slot 3, a locking nut 605 is screwed onto the external thread of the threaded post 604. The entire design can effectively reduce the waste of steel pipes due to different heights at the bottom of the beam. Moreover, the device is simple to use, easy and quick to install. The spacing between the top support mechanisms can be adjusted at will according to the spacing of different sized frames. It can effectively solve the cumbersome and complicated operation procedures of bottom beam jacking. At the same time, it reduces the amount of steel pipes used at the bottom of the beam and facilitates on-site construction.
[0027] To improve the stability of the fit between the galvanized pipe 6 and the channel steel 1, reinforcing angle irons 602 are welded to the top and bottom of the support block 601 around the circumference of the galvanized pipe 6 to strengthen the connection between the galvanized pipe 6 and the support block 601.
[0028] To improve the strength of the middle part of the channel steel 1 against deformation, a raised groove edge 4 is integrally formed along the edge of the groove opening 3 on the side of the channel steel 1 away from the top support mechanism. The width of the support platform 603 is the same as the thickness of the channel steel 1. This design allows the support platform 603 to always be inside the groove edge 4, so that the locking nut 605 can effectively position and lock the support platform 603 inside the groove opening 3 through the threaded post 604.
[0029] To improve the stability of the galvanized pipe 6, the thickness of its support platform 603 is adapted to the width of the groove 3 on the channel steel 1.
[0030] To facilitate on-site adjustment of the top support by construction personnel and enable it to effectively align with the bottom of the beam at the corresponding position, the screw clip 9 includes an operating handle 901 and a hexagonal nut 902. The hexagonal nut 902 is integrally formed on the top of the operating handle 901, and the screw clip 9 is located at the top of the galvanized pipe 6.
[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A beam bottom support device, characterized in that, It includes two channel steels (1), and the middle of each of the two channel steels (1) is provided with a long strip-shaped slot (3) along the length direction of the channel steel (1), and several top support mechanisms are vertically installed between the two channel steels (1) through the slot (3). The top support mechanism includes a galvanized pipe (6) and a threaded rod (7) inserted inside the galvanized pipe (6). A U-shaped top support (8) is installed at the top of the threaded rod (7), and a screw clip (9) is threaded onto the threaded rod (7). The galvanized pipe (6) has an installation platform on its outer side that matches the slot (3).
2. The beam bottom support device according to claim 1, characterized in that, The two channel steels (1) are designed with their backs facing each other. Both ends of the two channel steels (1) are provided with mounting holes (2), and the two ends of the two channel steels (1) are fixed by fixing bolts (5) in conjunction with the mounting holes (2).
3. The beam bottom support device according to claim 2, characterized in that, The mounting platform is located in the middle of the galvanized pipe (6), and the mounting platform includes a square support block (601) welded to the galvanized pipe (6).
4. The beam bottom support device according to claim 3, characterized in that, The top and bottom of the support block (601) are both welded with reinforcing angle iron (602) around the circumference of the galvanized pipe (6).
5. A beam bottom support device according to claim 4, characterized in that, The support block (601) has a support platform (603) on both sides. The support platform (603) is slidably inserted into the slot (3), and a threaded column (604) is horizontally welded on the outside of the support platform (603). After the end of the threaded column (604) passes through the slot (3), a locking nut (605) is screwed onto the external thread of the threaded column (604).
6. A beam bottom support device according to claim 2, characterized in that, The channel steel (1) has a raised groove edge (4) integrally formed along the edge of the groove opening (3) on the side away from the top support mechanism, and the width of the support platform (603) is consistent with the thickness of the channel steel (1).
7. A beam bottom support device according to claim 5, characterized in that, The thickness of the support platform (603) is adapted to the width of the slot (3) on the channel steel (1).
8. A beam bottom support device according to claim 1, characterized in that, The screw clip (9) includes an operating handle (901) and a hexagonal nut (902), the hexagonal nut (902) being integrally formed on the top of the operating handle (901), and the screw clip (9) being located at the top of the galvanized pipe (6).