Pear-shaped bridge tower construction support convenient to disassemble
By designing a pear-shaped bridge tower construction support that is easy to disassemble, the problem of inconvenient installation and disassembly of the support in the existing technology was solved by using limiting and fastening mechanisms. This achieved stable limiting of the steel formwork, prevented concrete from expanding outward, and improved construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LANZHOU CHANGTONG HIGHWAY ENGINEERING CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-05-26
AI Technical Summary
In the current construction of pear-shaped bridge towers, the installation and dismantling of steel formwork supports are inconvenient and make it difficult to effectively prevent concrete from expanding outwards.
A support system including a fixed support, a sliding support, corner brackets, a limiting mechanism, and a fastening mechanism was designed. The position of the sliding support is adjusted by the adjustment mechanism, and the steel formwork is limited by the limiting mechanism and the fastening mechanism to ensure that it does not fall off during the concrete pouring process.
It enables convenient installation and disassembly of the support frame, effectively prevents the steel formwork from expanding outwards during concrete pouring, and improves construction efficiency.
Smart Images

Figure CN224281041U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of formwork supports in bridge tower construction, specifically a pear-shaped bridge tower construction support that is easy to disassemble. Background Technology
[0002] Pear-shaped bridge towers refer to bridge towers whose outlines are pear-shaped, wider at the bottom and narrower at the top, such as the outline of the Shichuan Yellow River Bridge towers. In existing technologies, bridge towers are cast in sections from bottom to top, and steel formwork is needed to limit the concrete pouring area during the pouring process.
[0003] Meanwhile, in the existing technology, a support needs to be set on the outside of the steel formwork to limit the steel formwork. The support can limit the outside of the steel formwork to prevent outward expansion during the concrete pouring process. The existing support is usually a long pole structure, which is inconvenient to install and dismantle. Utility Model Content
[0004] The purpose of this utility model is to provide a pear-shaped bridge tower construction support that is easy to disassemble, in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a pear-shaped bridge tower construction support that is easy to disassemble, comprising four fixed supports, each of the four fixed supports having a sliding support connected to both ends by an adjustment mechanism, and corner brackets provided between two sliding supports arranged at right angles, with an abutting block formed on the outer side of the sliding support away from the fixed support, abutting the corner bracket, adjacent corner brackets being connected by a fastening mechanism, and a limiting mechanism connected to the steel formwork distributed on the outer side of the fixed supports.
[0006] As a further embodiment of this utility model: the adjustment mechanism includes fixed ears that are fixedly installed at the top and bottom ends of the sliding bracket. The fixed ears have an integrally formed sliding rod protruding outward at the end near the fixed bracket. The sliding rod has a sliding ear slidably installed on its outer wall. The sliding ear is fixedly connected to the top and bottom of the fixed bracket.
[0007] As a further embodiment of this utility model: the corner bracket includes a first vertical plate and a second vertical plate, which are arranged at right angles. A first through hole is provided at the top and bottom of the interior of the first vertical plate, and a second through hole is provided at the top and bottom of the interior of the second vertical plate. The first through hole and the second through hole are arranged in a staggered manner.
[0008] As a further embodiment of this utility model: the fastening mechanism includes a locking rod, one set of the locking rods is inserted into two adjacent first vertical plate portions, and another set of the locking rods is inserted into two adjacent second vertical plate portions, and locking nuts are threaded onto the threaded portions at both ends of the outer wall of the locking rod.
[0009] As a further embodiment of this utility model: the limiting mechanism includes a fixing plate fixedly connected to the outer wall of the steel template, the inside of the fixing plate has a slot opened laterally, the top of the fixing plate is fixedly installed with a limiting plate, the side of the limiting plate near the fixed bracket has an outwardly protruding limiting block integrally formed, and the side of the fixed bracket near the limiting plate has a limiting groove for accommodating the limiting block.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] 1. By setting a limiting mechanism and a sliding mechanism, the limiting mechanism can limit the fixed bracket during installation and disassembly, and the sliding mechanism can adjust the position of the sliding bracket, which can achieve convenient fixation. Secondly, during disassembly, the four fixed brackets and sliding brackets will not suddenly fall off, which can be easily disassembled. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the installation of the corner bracket of this utility model;
[0014] Figure 3 For the present utility model Figure 2 Enlarged view of a portion of point A in the middle.
[0015] In the diagram: 1. Fixed bracket; 2. Sliding bracket; 3. Angle bracket; 4. Limiting plate; 5. Fixed plate; 6. Locking rod; 7. Locking nut; 8. Abutment block; 9. Fixed ear; 10. Sliding rod; 11. Sliding ear; 12. Limiting block; 13. Limiting groove. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Please see Figures 1-3In this embodiment of the utility model, a pear-shaped bridge tower construction support that is easy to disassemble includes four fixed supports 1. Both ends of the four fixed supports 1 are connected to sliding supports 2 through adjustment mechanisms. Angle brackets 3 are provided between two sliding supports 2 that are distributed at right angles. An abutment block 8 is formed on the outer side of the end of the sliding support 2 away from the fixed support 1, which abuts against the angle bracket 3. Adjacent angle brackets 3 are connected by a fastening mechanism. A limiting mechanism connected to the steel template is distributed on the outer side of the fixed support 1. Angle bracket 3 includes a first vertical plate and a second vertical plate. The first vertical plate and the second vertical plate are distributed at right angles. A first through hole is opened at the top and bottom of the interior of the first vertical plate. A second through hole is opened at the top and bottom of the interior of the second vertical plate. The first through hole and the second through hole are distributed in a staggered state.
[0018] In this embodiment: studs are installed in the pre-drilled mounting holes on the bridge tower that has been poured, cured, and completely fixed. The studs are connected to the limiting mechanism, and the limiting mechanism is fixed by tightening the nuts. Then, the fixed bracket 1 is connected to the limiting mechanism. After the fixed bracket 1 is connected to the limiting mechanism, the sliding bracket 2 is pulled outward until two adjacent sliding brackets 2 are in contact. Then, the corner bracket 3 is placed at the right angle position where the two sliding brackets 2 are in contact, and the sliding bracket 2 is in contact with the outer end face of the abutment block 8. Then, the fastening mechanism is used to fasten the two adjacent corner brackets 3 until they are completely tightened. At this time, the device wraps around the outside of the steel formwork, applies a limiting force to the steel formwork, and ensures that the steel formwork does not expand outward during the concrete pouring process.
[0019] Please refer to this carefully. Figure 1 , Figure 2 The adjustment mechanism includes fixed ears 9 fixedly installed at the top and bottom ends of the sliding bracket 2. The fixed ears 9 have an integrally formed sliding rod 10 protruding outward at the end near the fixed bracket 1. The outer wall of the sliding rod 10 is slidably installed with a sliding ear 11, which is fixedly connected to the top and bottom of the fixed bracket 1.
[0020] In this embodiment: after the limiting mechanism is connected to the steel template, the fixed bracket 1 is docked with the limiting mechanism. After docking, the sliding bracket 2 is pulled to slide. The sliding bracket 2 drives the sliding rod 10 to slide through the fixed ear 9. The sliding rod 10 and the sliding ear 11 slide relative to each other until one end of two adjacent sliding brackets 2 are connected and form a right angle. Then, the corner bracket 3 is placed at the right angle between the two adjacent sliding brackets 2.
[0021] Please refer to this carefully. Figure 1 , Figure 2The fastening mechanism includes a locking rod 6. One set of locking rods 6 is inserted into two adjacent first vertical plates, and another set of locking rods 6 is inserted into two adjacent second vertical plates. Locking nuts 7 are threaded onto the threaded portions at both ends of the outer wall of the locking rod 6.
[0022] In this embodiment: after the corner bracket 3 is placed in place, multiple locking rods 6 are inserted in sequence, and the locking nut 7 is threadedly connected to the threaded part of the locking rod 6 until the locking nut 7 is completely tightened. Since the four fixed brackets 1 are limited by the limiting mechanism, the position of the fixed brackets 1 remains unchanged at this time. During the process of the locking nut 7 rotating and locking, the locking nut 7 presses the corner bracket 3. Since the limiting mechanism is fixedly connected to the formed bridge tower part, when concrete is poured into the inside of the steel formwork, the device of this application can effectively limit the steel formwork and avoid outward expansion.
[0023] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3 The limiting mechanism includes a fixed plate 5 that is fixedly connected to the outer wall of the steel template. The fixed plate 5 has a slot opened horizontally inside. A limiting plate 4 is fixedly installed on the top of the fixed plate 5. A limiting block 12 protruding outward is integrally formed on the side of the limiting plate 4 near the fixed bracket 1. A limiting groove 13 for accommodating the limiting block 12 is opened on the side of the fixed bracket 1 near the limiting plate 4.
[0024] In this embodiment: an expansion tube is inserted into the pre-formed hole. Then, the groove is aligned with the expansion tube. The bolt is then passed through the groove and threaded to the expansion tube to fix the fixing plate 5. At this time, the external limit plate 4 is fixed. Then, the limit groove 13 on the fixing bracket 1 is aligned with the limit block 12 and snapped together. In this way, the limit of the fixing bracket 1 can be completed.
[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A detachable support for construction of a pear-shaped bridge tower, comprising four fixed supports (1), characterized in that, Both ends of the four fixed supports (1) are connected to sliding supports (2) through adjustment mechanisms. Angle brackets (3) are provided between two sliding supports (2) that are distributed at right angles. An abutting block (8) is formed on the outer side of the end of the sliding support (2) away from the fixed support (1) to abut against the angle bracket (3). Adjacent angle brackets (3) are connected by fastening mechanisms. Limiting mechanisms connected to steel templates are distributed on the outer side of the fixed support (1).
2. The easily detachable scaffolding for construction of a pear-shaped bridge tower according to claim 1, wherein The adjustment mechanism includes fixed ears (9) fixedly installed at the top and bottom ends of the sliding bracket (2). The fixed ears (9) have an outwardly protruding sliding rod (10) integrally formed at one end near the fixed bracket (1). The outer wall of the sliding rod (10) is slidably installed with a sliding ear (11). The sliding ear (11) is fixedly connected to the top and bottom of the fixed bracket (1).
3. The easily detachable scaffolding for construction of a pear-shaped bridge tower according to claim 2, wherein The corner bracket (3) includes a first vertical plate and a second vertical plate. The first vertical plate and the second vertical plate are distributed at right angles. A first through hole is opened at the top and bottom of the interior of the first vertical plate. A second through hole is opened at the top and bottom of the interior of the second vertical plate. The first through hole and the second through hole are distributed in a staggered state.
4. The easily detachable scaffolding for construction of a pear-shaped bridge tower according to claim 3, wherein The fastening mechanism includes a locking rod (6), one set of the locking rods (6) is inserted into two adjacent first vertical plate sections, and another set of the locking rods (6) is inserted into two adjacent second vertical plate sections. Locking nuts (7) are threaded onto the threaded portions at both ends of the outer wall of the locking rods (6).
5. The easily detachable scaffolding for construction of a pear-shaped bridge tower according to claim 4, wherein The limiting mechanism includes a fixing plate (5) fixedly connected to the outer wall of the steel template. The fixing plate (5) has a slot opened horizontally inside. A limiting plate (4) is fixedly installed on the top of the fixing plate (5). A limiting block (12) protruding outward is integrally formed on the side of the limiting plate (4) near the fixing bracket (1). A limiting groove (13) for accommodating the limiting block (12) is opened on the side of the fixing bracket (1) near the limiting plate (4).