Adjustable pier column jig
By designing an adjustable pier support frame, utilizing bottom load-bearing components, fixed positioning components, and movable adjustment components, the problem of insufficient applicability of existing support frames was solved, achieving efficient fixing and support of steel cages for piers of various specifications and models, and improving bridge construction efficiency and cost-effectiveness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG COMM CONSTR GRP CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-05-29
AI Technical Summary
Existing formwork can only be used for the fabrication of steel cages for piers of specific shapes, resulting in low utilization and high costs. This makes it difficult to meet the needs of piers of various specifications and models, thus affecting the efficiency of bridge construction.
An adjustable pier frame is designed, comprising a bottom load-bearing component, a fixed positioning component, and a movable adjustment component. By adjusting the locking component and the support assembly, it can adapt to the fixing and support of different types of pier steel cages, thereby reducing manufacturing costs.
Improve the utilization rate of the formwork, enhance the user experience, ensure construction accuracy and stability, adapt to the needs of various specifications and models of pier reinforcement cages, and promote its application in bridge construction.
Smart Images

Figure CN224299809U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge construction technology, specifically an adjustable pier support frame. Background Technology
[0002] The primary function of a reinforcing cage is to provide the necessary tensile and compressive strength for the concrete structure of a bridge. Concrete itself has high compressive strength but relatively low tensile strength. Through its synergistic effect with the concrete, the reinforcing cage effectively enhances the overall load-bearing capacity of the structure, enabling it to withstand greater loads. During concrete pouring, the reinforcing cage effectively restricts the shrinkage and expansion of the concrete, reducing the formation of cracks. Cracks not only affect the aesthetics of the structure but can also allow moisture and harmful substances to penetrate, impacting the structure's durability.
[0003] In bridge construction, the assembly of steel reinforcement cages has always been a key and challenging aspect. The precision of the steel reinforcement cage assembly affects the final yield rate of the bridge. Since mobile work frames are commonly used in the production of precast bridges, the precision requirements for steel reinforcement assembly and welding are extremely high. Therefore, improving the precision of assembly and welding has become a crucial point in the construction of steel reinforcement cage assembly.
[0004] A formwork frame is a type of mold, referring to scaffolding that primarily bears loads. It is a specialized piece of equipment used to facilitate the assembly and welding of mechanical equipment and is widely used in formwork engineering, steel structure installation engineering, and bridge engineering. The reinforcing cage is horizontally fixed using the formwork frame. After the main reinforcement bars are positioned, stirrups are wrapped around them to complete the fabrication of the pier column reinforcing cage.
[0005] In existing technologies, the connection points of the formwork are typically fixed by welding, which can only be used for the fabrication of steel cages for piers of specific shapes. During bridge construction, piers often come in various specifications and models. If a separate formwork is fabricated for each type of pier, firstly, the utilization rate of each fixed formwork is low, resulting in a large space occupation; secondly, the manufacturing cost is high, and the time required to fabricate each formwork may make it difficult to meet demand during peak periods, affecting the user experience and hindering the promotion and application of the aforementioned fixed formwork in bridge construction technology. Utility Model Content
[0006] In order to overcome the defects in the prior art, the purpose of this utility model is to provide an adjustable pier column formwork. The adjustable pier column formwork has a simple and ingenious structure, is easy to operate, and can be adapted to different models of pier column steel cages. It improves the utilization rate of the formwork while reducing the manufacturing cost of the formwork, enhances the user experience, and is conducive to the promotion and application of the above-mentioned adjustable pier column formwork in the field of bridge construction technology.
[0007] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: an adjustable pier frame, comprising a bottom load-bearing component, a fixed positioning component, and a movable adjustment component. One end of the fixed positioning component is fixed to the bottom load-bearing component and is arranged perpendicularly to the bottom load-bearing component. One end of the movable adjustment component is adjustablely installed on the bottom load-bearing component and is arranged parallel to the fixed positioning component. The movable adjustment component and the fixed positioning component form a pier position that can accommodate different types of pier reinforcement cages.
[0008] As a preferred embodiment of this utility model, the bottom load-bearing component is provided with an adjustment groove corresponding to the position of the movable adjustment component, the movable adjustment component is provided with a fixing hole, and an adjustment locking component is inserted into the adjustment groove and the fixing hole.
[0009] As a preferred embodiment of the present invention, the movable adjustment member is further provided with an adjustment support assembly for supporting the movable adjustment member, the adjustment support assembly being connected between the bottom load-bearing member and the movable adjustment member.
[0010] As a preferred embodiment of this utility model, the adjusting support assembly includes a first mounting base, a second mounting base, a first connecting sleeve, a second connecting sleeve, and an adjusting rod. The first mounting base is used to be fixed to the bottom load-bearing component, and the second mounting base is used to be fixed to the side of the movable adjusting component. The first connecting sleeve and the first mounting base, as well as the second connecting sleeve and the second mounting base, are all connected by a connecting shaft. Furthermore, the first connecting sleeve and the second connecting sleeve are provided with adjusting holes for installing the adjusting rod at positions directly opposite each other.
[0011] In a preferred embodiment of this utility model, the adjusting hole is a screw hole, the adjusting rod is a screw, and the length of the adjusting rod between the first connecting sleeve and the second connecting sleeve is adjustable and installed in the adjusting hole.
[0012] As a preferred embodiment of this utility model, a steel cage positioning support assembly is installed between the pier column steel cage and the bottom load-bearing component, the fixed positioning component and the movable adjustment component, respectively.
[0013] As a preferred embodiment of this utility model, the rebar cage positioning support assembly includes a support beam and an adjusting block. The adjusting block is movably installed on the support beam, and the positions of the support beam and the adjusting block are fixed by a fastener.
[0014] In a preferred embodiment of this utility model, the surfaces of the support beam and the adjusting block that are in contact are both serrated.
[0015] As a preferred embodiment of this utility model, the pier column position is a semi-enclosed structure.
[0016] In a preferred embodiment of this utility model, the adjusting locking component is a locking bolt.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: The adjustable pier column frame of this utility model has an ingenious structure. By setting a bottom load-bearing component, a fixed positioning component, and a movable adjustment component, the fixed positioning component is fixed on the bottom load-bearing component, and the position of the movable adjustment component on the bottom load-bearing component is adjustable. This allows the size of the pier column position formed between the fixed positioning component and the movable adjustment component to be variable, so as to adapt to different models of pier column reinforcement cages. This improves the utilization rate of the frame while reducing the manufacturing cost of the frame, enhances the user experience, and is conducive to the promotion and application of the above-mentioned adjustable pier column frame in the field of bridge construction technology.
[0018] Furthermore, by setting an adjustment support assembly between the bottom load-bearing component and the movable adjustment component, this utility model can effectively ensure the stability of the pier frame during use and enhance the user experience. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of an adjustable pier frame in one embodiment;
[0020] Figure 2 This is a schematic diagram of the structure of the adjustable support component in the embodiment;
[0021] Figure 3 This is a structural schematic diagram of the steel cage positioning support component in the embodiment.
[0022] Reference numerals in the attached drawings: 1. Bottom load-bearing component; 1-1. Adjustment groove; 2. Fixed positioning component; 3. Movable adjustment component; 3-1. Fixing hole; 4. Pier column reinforcement cage; 5. Pier column position; 6. Adjustment locking component; 7. Adjustment support assembly; 7-1. Mounting seat one; 7-2. Mounting seat two; 7-3. Connecting sleeve one; 7-4. Connecting sleeve two; 7-5. Adjusting rod; 7-6. Adjustment hole; 8. Reinforcing cage positioning support assembly; 8-1. Support beam; 8-2. Adjusting block; 8-3. Fixing component. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the present utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.
[0024] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.
[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0026] Example: Figures 1 to 3 As shown, an adjustable pier frame mainly consists of a bottom load-bearing component 1, a fixed positioning component 2, and a movable adjustment component 3. To reduce manufacturing difficulty and cost, the bottom load-bearing component 1, the fixed positioning component 2, and the movable adjustment component 3 can all be beam-shaped structures, specifically made of channel steel, etc. One end of the fixed positioning component 2 is fixed to the bottom load-bearing component 1 and is perpendicular to it. The vertically positioned fixed positioning component 2 provides stable support for the entire frame, preventing displacement or deformation of the pier reinforcement cage 4 in the vertical direction. Furthermore, the perpendicularity of the fixed positioning component 2 to the bottom load-bearing component 1 allows for precise control of the position of the pier reinforcement cage 4, ensuring its installation accuracy. To allow the pier position 5 formed between the movable adjustment component 3 and the fixed positioning component 2 to accommodate different models of pier reinforcement cages 4, in this embodiment, one end of the movable adjustment component 3 is adjustable and mounted on the bottom load-bearing component 1, parallel to the fixed positioning component 2, meaning the movable adjustment component 3 is also perpendicular to the bottom load-bearing component 1.
[0027] Specifically, to facilitate the position adjustment of the movable adjusting member 3 on the bottom load-bearing member 1, an adjusting groove 1-1 is provided on the bottom load-bearing member 1 in this embodiment. The adjusting groove 1-1 is preferably waist-shaped. Correspondingly, a fixing hole 3-1 is provided on the movable adjusting member 3. An adjusting locking member 6 is inserted into the adjusting groove 1-1 and the fixing hole 3-1 to fix the position of the movable adjusting member 3 on the bottom load-bearing member 1. Conversely, an adjusting groove 1-1 can be provided on the movable adjusting member 3, a fixing hole 3-1 can be provided on the bottom load-bearing member 1, and an adjusting locking member 6 can be inserted into the adjusting groove 1-1 and the fixing hole 3-1, which also achieves the same goal of fixing the position of the movable adjusting member 3 on the bottom load-bearing member 1. Preferably, the adjusting groove 1-1 is provided on the bottom load-bearing member 1 because the width of the bottom load-bearing member 1 is much wider than that of the movable adjusting member 3. The aforementioned adjusting locking component 6 is a simple, economical, and practical locking bolt. The locking bolt can provide reliable fixing and locking, ensuring that the aforementioned movable adjusting component 3 can remain stable after being adjusted to the required position without loosening or displacement. Furthermore, the design of the locking bolt can simplify the installation process, allowing construction personnel to quickly complete the installation and locking operations using simple tools (such as wrenches).
[0028] The aforementioned movable adjustment component 3 is also equipped with an adjustment support assembly 7 for supporting the movable adjustment component 3. The adjustment support assembly 7 is connected between the aforementioned bottom load-bearing component 1 and the aforementioned movable adjustment component 3, so that the adjustment support assembly 7 can provide stable support for the aforementioned movable adjustment component 3, preventing it from shaking or deforming during use. Furthermore, by adjusting the support function of the support assembly 7, the displacement of the movable adjustment component 3 under various external forces can be reduced, ensuring the accuracy of its position. To ensure the support effect of the adjustable support assembly 7, which can be adapted to the movable adjusting member 3 at different positions, the adjustable support assembly 7 in this embodiment mainly consists of mounting base 1 7-1, mounting base 2 7-2, connecting sleeve 1 7-3, connecting sleeve 2 7-4, and adjusting rod 7-5. Mounting base 1 7-1 is used to fix it to the bottom load-bearing member 1, and mounting base 2 7-2 is used to fix it to the side of the movable adjusting member 3. Connecting sleeve 1 7-3 and mounting base 1 7-1, and connecting sleeve 2 7-4 and mounting base 2 7-2 are all connected by connecting shafts. Adjusting holes 7-6 for installing the adjusting rod 7-5 are provided at the positions directly opposite each other of connecting sleeve 1 7-3 and connecting sleeve 2 7-4. By changing the length of the adjusting rod 7-5 between connecting sleeve 1 7-3 and connecting sleeve 2 7-4, the movable adjusting member 3 can be adapted to different positions, so as to meet the requirement that the entire frame can adapt to different types of pier column steel cages 4.
[0029] To reduce adjustment difficulty, in this embodiment, the adjustment hole 7-6 is a screw hole, and the adjustment rod 7-5 is a screw. The length of the adjustment rod 7-5, which is between the first connecting sleeve 7-3 and the second connecting sleeve 7-4, is adjustable and installed within the adjustment hole 7-6. By designing the adjustment rod 7-5 as a screw and installing it in the screw hole, i.e., the adjustment hole 7-6, this embodiment allows for precise adjustment of the length of the adjustment rod 7-5. This allows construction personnel to adjust the length of the adjustment rod 7-5 according to specific needs, thereby achieving precise control over the position and angle of the movable adjustment component 3.
[0030] To mitigate the impact on the edges of the aforementioned pier reinforcement cage 4, this embodiment also includes reinforcement cage positioning support components 8 installed between the pier reinforcement cage 4 and the aforementioned bottom load-bearing component 1, the aforementioned fixed positioning component 2, and the aforementioned movable adjusting component 3. These reinforcement cage positioning support components 8 provide support for the pier reinforcement cage 4 and can also be adapted to different models of pier reinforcement cages 4. Specifically, the reinforcement cage positioning support component 8 includes a support beam 8-1 and an adjusting block 8-2. The adjusting block 8-2 is movably mounted on the support beam 8-1 and fixed in place by a fixing component 8-3, allowing it to adapt to different models of pier reinforcement cages 4 while providing support. The fixing component 8-3 can also be a simple, economical, and practical locking bolt.
[0031] The surfaces of the support beam 8-1 and the adjustment block 8-2 that are in contact with each other are serrated. The serrated contact surfaces can significantly increase the friction between the support beam 8-1 and the adjustment block 8-2, preventing relative sliding between them during use. In other words, by increasing the friction, the connection between the support beam 8-1 and the adjustment block 8-2 can be made more stable, reducing displacement or loosening caused by external forces.
[0032] The aforementioned pier position 5 is a semi-enclosed structure, meaning the main body of the formwork in this embodiment is semi-enclosed. This semi-enclosed structure provides stable support for the pier, ensuring its precise positioning during construction and use. It effectively prevents displacement or tilting of the pier during concrete pouring or installation. Furthermore, the semi-enclosed structure enhances the overall stability of the pier, particularly when subjected to lateral forces (such as wind or seismic forces), effectively preventing overturning. The semi-enclosed design also makes it easier to adjust the pier during installation. Construction personnel can fine-tune the position and angle of the pier within the semi-enclosed structure to ensure it meets design requirements.
[0033] In this embodiment of an adjustable pier support frame, during implementation, firstly, based on the model and stirrup spacing of the pier reinforcement cage 4, a suitable adjusting block 8-2 is selected and connected to the support beam 8-1 using connecting bolts; then, based on the width of the pier reinforcement cage 4, the movable adjusting member 3 is moved along the length of the bottom load-bearing component 1. After the movable adjusting member 3 is moved to a suitable position, connecting bolts are used to pass through the adjusting groove 1-1 and the fixing hole 3-1 to fix the movable adjusting member 3 to the bottom load-bearing component 1. It is necessary to ensure that the movable adjusting member 3 is vertical. The bottom load-bearing component 1 is directly above the support component 7. The adjustment support component 7 is adjusted by rotating the adjusting rod 7-5 according to the distance between the mounting base 7-1 and the second mounting base 7-2, so as to adjust the length of the adjusting rod 7-5 between the first connecting sleeve 7-3 and the second connecting sleeve 7-4. After the length is appropriate, the first connecting sleeve 7-3 and the mounting base 7-1 are axially connected, and the second connecting sleeve 7-4 and the second mounting base 7-2 are axially connected to complete the adjustment of the pier column frame size, so that the pier column position 5 between the movable adjusting component 3 and the fixed positioning component 2 is adapted to the pier column reinforcement cage 4, and the overall installation of the frame is completed.
[0034] This embodiment presents an adjustable pier frame with an ingenious structure. By setting a bottom load-bearing component 1, a fixed positioning component 2, and a movable adjustment component 3, the fixed positioning component 2 is fixed to the bottom load-bearing component 1, and the position of the movable adjustment component 2 on the bottom load-bearing component 1 is adjustable. This allows the size of the pier position 5 formed between the fixed positioning component 2 and the movable adjustment component 3 to be variable, so as to adapt to different types of pier reinforcement cages 4. This improves the utilization rate of the frame while reducing the manufacturing cost of the frame and enhancing the user experience. It is conducive to the promotion and application of the above-mentioned adjustable pier frame in the field of bridge construction technology.
[0035] Furthermore, by setting an adjustment support assembly 7 between the bottom load-bearing component 1 and the movable adjustment component 3, this embodiment can effectively ensure the stability of the pier frame during use and enhance the user experience.
[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
[0037] Although this document frequently uses reference numerals from the accompanying drawings: 1. Bottom load-bearing component; 1-1. Adjusting groove; 2. Fixed positioning component; 3. Movable adjusting component; 3-1. Fixing hole; 4. Pier column reinforcement cage; 5. Pier column position; 6. Adjusting locking component; 7. Adjusting support assembly; 7-1. Mounting seat one; 7-2. Mounting seat two; 7-3. Connecting sleeve one; 7-4. Connecting sleeve two; 7-5. Adjusting rod; 7-6. Adjusting hole; 8. Reinforcing cage positioning support assembly; 8-1. Support beam; 8-2. Adjusting block; 8-3. Fixing component, etc., the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.
Claims
1. An adjustable pier support frame, characterized in that: It includes a bottom load-bearing component (1), a fixed positioning component (2) and a movable adjustment component (3). One end of the fixed positioning component (2) is fixed to the bottom load-bearing component (1) and is set perpendicular to the bottom load-bearing component (1). One end of the movable adjustment component (3) is adjustable and installed on the bottom load-bearing component (1) and is set parallel to the fixed positioning component (2). The movable adjustment component (3) and the fixed positioning component (2) form a pier position (5) that can accommodate different types of pier column steel cages (4).
2. The adjustable pier frame according to claim 1, characterized in that: The bottom load-bearing component (1) has an adjustment groove (1-1) corresponding to the position of the movable adjustment component (3), and the movable adjustment component (3) has a fixing hole (3-1). An adjustment locking component (6) is inserted into the adjustment groove (1-1) and the fixing hole (3-1).
3. The adjustable pier frame according to claim 2, characterized in that: The movable adjustment member (3) is also equipped with an adjustment support assembly (7) for supporting the movable adjustment member (3), and the adjustment support assembly (7) is connected between the bottom load-bearing member (1) and the movable adjustment member (3).
4. An adjustable pier frame according to claim 3, characterized in that: The adjustment support assembly (7) includes a mounting base one (7-1), a mounting base two (7-2), a connecting sleeve one (7-3), a connecting sleeve two (7-4), and an adjustment rod (7-5). The mounting base one (7-1) is used to fix to the bottom load-bearing component (1), and the mounting base two (7-2) is used to fix to the side of the movable adjustment component (3). The connecting sleeve one (7-3) and the mounting base one (7-1) and the connecting sleeve two (7-4) and the mounting base two (7-2) are all connected by a connecting shaft. The connecting sleeve one (7-3) and the connecting sleeve two (7-4) are respectively provided with adjustment holes (7-6) for the adjustment rod (7-5) to be installed at the positions directly opposite each other.
5. An adjustable pier frame according to claim 4, characterized in that: The adjusting hole (7-6) is a screw hole, the adjusting rod (7-5) is a screw, and the length of the adjusting rod (7-5) between the first connecting sleeve (7-3) and the second connecting sleeve (7-4) is adjustable and installed in the adjusting hole (7-6).
6. An adjustable pier frame according to claim 1 or 5, characterized in that: A steel cage positioning support assembly (8) is installed between the pier column steel cage (4), the bottom load-bearing component (1), the fixed positioning component (2), and the movable adjustment component (3).
7. An adjustable pier frame according to claim 6, characterized in that: The steel cage positioning support assembly (8) includes a support beam (8-1) and an adjusting block (8-2). The adjusting block (8-2) is movably installed on the support beam (8-1) and the positions of the support beam (8-1) and the adjusting block (8-2) are fixed by a fastener (8-3).
8. An adjustable pier frame according to claim 7, characterized in that: The surfaces of the support beam (8-1) and the adjusting block (8-2) that come into contact with each other are serrated.
9. An adjustable pier frame according to claim 1, characterized in that: The pier (5) is a semi-enclosed structure.
10. An adjustable pier frame according to claim 2, characterized in that: The adjusting locking component (6) is a locking bolt.