A device for prefabricating a pier steel reinforcement cage pedestal
By combining the threaded rod, the fixed arc plate, and the torsion spring of the fixing mechanism, the problem of stable fixing of the steel cage during bridge pier construction was solved, achieving stable positioning and safe installation of the steel cage and improving construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NORTH CHINA CONSTR ENG GRP CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-26
Smart Images

Figure CN224412329U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of precast bridge pier reinforcement cage technology, and in particular relates to a device for a precast bridge pier reinforcement cage platform. Background Technology
[0002] Precast steel reinforcement cages for bridge piers are an important component in bridge construction, primarily used as the supporting structure for piers. They are typically made of tied steel bars to ensure the strength and stability of the piers. The reinforcement cage is the frame structure for the poured concrete in the pier foundation, effectively enhancing the pier's resistance to compression, bending, and shear.
[0003] In the existing technology, it is difficult to solve the problem of stabilizing and fixing the steel cage during the construction of bridge piers. As a result, the steel cage cannot maintain a stable and correct position before the concrete is poured, and the steel bars will be displaced. Therefore, we propose a device for a prefabricated bridge pier steel cage platform. Utility Model Content
[0004] The purpose of this invention is to provide a device for a precast bridge pier rebar cage platform. Through the cooperation of components such as the threaded rod, fixed arc plate, and torsion spring in the fixing mechanism, during rebar cage installation, workers place the rebar cage on top of the platform using a crane. A motor is started to drive the threaded rod to rotate, causing the threaded sleeve to move linearly, which in turn pushes the push rod. The push rod pushes the force plate, causing the support shaft to rotate, which in turn causes the connecting plate and the fixed arc plate to rotate. The fixed arc plate then presses down to clamp the rebar cage. During adjustment, the push rod disengages from the force plate, and the fixed arc plate automatically resets elastically via the torsion spring. This design achieves a stable fixation of the rebar cage, ensuring stable and precise positioning during installation and solving existing problems.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model is a device for a precast bridge pier steel cage platform, including a base plate, a platform fixedly connected to the top of the base plate, and a fixing mechanism provided inside the platform.
[0007] The fixing mechanism includes a motor, which is fixedly connected inside the base. A threaded rod is fixedly connected to the output end of the motor. A threaded sleeve is threadedly connected to the circumferential surface of the threaded rod. A push rod is fixedly connected to the top of the threaded sleeve. A support shaft is rotatably connected inside the base. A force-bearing plate is fixedly connected to the circumferential surface of the support shaft. A connecting plate is fixedly connected to the circumferential surface of the support shaft. A fixing arc plate is fixedly connected to the end of the connecting plate away from the support shaft.
[0008] Furthermore, a torsion spring is fixedly connected inside the pedestal, and one end of the torsion spring away from the inside of the pedestal is fixedly connected to the circumferential surface of the support shaft. The purpose of this is to ensure that the support shaft can automatically reset and reduce manual intervention.
[0009] Furthermore, a limiting plate is fixedly connected inside the base. The side of the limiting plate penetrates the circumferential surface of the threaded rod. A limiting shaft is fixedly connected to the side of the limiting plate. The circumferential surface of the limiting shaft penetrates and slides through the side of the threaded sleeve. The purpose of this is to limit the displacement distance of the threaded sleeve and prevent the threaded sleeve from rotating when it moves.
[0010] Furthermore, there are two of the aforementioned pedestal, fixed arc plate, and limiting shaft, which are symmetrical to each other along the vertical central axis of the base plate. The purpose of this is to ensure that the precast bridge pier reinforcement cage can be stably fixed and maintain its horizontality.
[0011] Furthermore, a protective mechanism is provided on the top of the base plate. The protective mechanism includes a support frame, which is fixedly connected to the top of the push rod. A connecting rod is hinged inside the support frame. A storage groove is provided on the side of the base plate. A sliding groove is provided inside the storage groove. A protective plate is slidably and rotatably connected inside the sliding groove. A pulling frame is fixedly connected to the top of the protective plate. The purpose of this is to ensure the safety of the operator.
[0012] Furthermore, the end of the connecting rod away from the inside of the support frame is hinged to the inside of the pulling frame, and the platform is provided with a moving groove. The side of the connecting rod is slidably connected to the inside of the moving groove. The purpose of this is to ensure that the connecting rod can stably pull the protective plate.
[0013] Furthermore, there are two connecting rods, pulling frames, and moving slots, which are symmetrical to each other along the vertical central axis of the base plate. The purpose of this is to ensure that the protective plate can be stably supported and to ensure safety.
[0014] This utility model has the following beneficial effects:
[0015] 1. This utility model utilizes the interplay between components such as the threaded rod, fixed arc plate, and torsion spring in the fixing mechanism. During installation, workers place the rebar cage on top of the platform using a crane, start the motor to drive the threaded rod to rotate, causing the threaded sleeve to move linearly, which in turn pushes the push rod. The push rod pushes the force plate, causing the support shaft to rotate, which in turn causes the connecting plate and the fixed arc plate to rotate. The fixed arc plate then presses down to clamp the rebar cage. During adjustment, the push rod moves away from the force plate, and the fixed arc plate automatically resets elastically via the torsion spring. This design achieves a stable fixation of the rebar cage, ensuring stable and precise positioning during installation.
[0016] 2. This utility model utilizes the cooperation between components such as the storage groove, protective plate, and pulling frame of the protective mechanism. The threaded sleeve moves to drive the support frame, which in turn pushes the connecting rod to move within the moving groove. The connecting rod pulls the frame to apply tension to the protective plate. The protective plate leaves the storage groove through the sliding groove and rotates at the end of the sliding groove, becoming perpendicular to the bottom plate, thus forming a surrounding protection and ensuring the safety of the operator. This design achieves the effect of protecting the entire device, improving safety, and ensuring adequate equipment protection.
[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are 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.
[0019] Figure 1 This is a structural schematic diagram of the three-dimensional appearance of the present invention from a first-person perspective;
[0020] Figure 2 This is a first-person three-dimensional cross-sectional structural schematic diagram of the present invention;
[0021] Figure 3 This is a schematic diagram of the structure of the present invention from a second-view three-dimensional cross-section;
[0022] Figure 4 This utility model Figure 2 A three-dimensional magnified structural diagram of A in the diagram;
[0023] Figure 5 This utility model Figure 3 A three-dimensional magnified structural diagram of B.
[0024] The attached diagram lists the components represented by each number as follows:
[0025] 1. Base plate; 2. Platform; 3. Fixing mechanism; 31. Motor; 32. Threaded rod; 33. Threaded sleeve; 34. Push rod; 35. Support shaft; 36. Force plate; 37. Connecting plate; 38. Fixing arc plate; 39. Torsion spring; 310. Limiting plate; 311. Limiting shaft; 4. Protective mechanism; 41. Support frame; 42. Connecting rod; 43. Storage groove; 44. Slide groove; 45. Protective plate; 46. Pulling frame; 47. Moving groove. Detailed Implementation
[0026] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figure 1-5 This utility model is a device for a precast bridge pier steel cage platform, including a base plate 1, a platform 2 fixedly connected to the top of the base plate 1, and a fixing mechanism 3 provided inside the platform 2.
[0028] The fixing mechanism 3 includes a motor 31, which is fixedly connected inside the base 2. A threaded rod 32 is fixedly connected to the output end of the motor 31. A threaded sleeve 33 is threadedly connected to the circumferential surface of the threaded rod 32. A push rod 34 is fixedly connected to the top of the threaded sleeve 33. A support shaft 35 is rotatably connected inside the base 2. A force-bearing plate 36 is fixedly connected to the circumferential surface of the support shaft 35. A connecting plate 37 is fixedly connected to the circumferential surface of the support shaft 35. A fixing arc plate 38 is fixedly connected to the end of the connecting plate 37 away from the support shaft 35.
[0029] As shown in the figure, a torsion spring 39 is fixedly connected inside the base 2. One end of the torsion spring 39 away from the inside of the base 2 is fixedly connected to the circumferential surface of the support shaft 35. The purpose of this is to ensure that the support shaft 35 can automatically reset and reduce manual intervention.
[0030] As shown in the figure, a limiting plate 310 is fixedly connected inside the base 2. The side of the limiting plate 310 penetrates the circumferential surface of the threaded rod 32. A limiting shaft 311 is fixedly connected to the side of the limiting plate 310. The circumferential surface of the limiting shaft 311 penetrates and slides through the side of the threaded sleeve 33. The purpose is to limit the displacement distance of the threaded sleeve 33 and prevent the threaded sleeve 33 from rotating when it moves.
[0031] As shown in the figure, there are two sets of base 2, fixed arc plate 38 and limiting shaft 311, which are symmetrical to each other along the vertical central axis of the base plate 1. The purpose is to ensure that the precast bridge pier steel cage can be stably fixed and maintain its horizontality.
[0032] As shown in the figure, a protective mechanism 4 is provided on the top of the base plate 1. The protective mechanism 4 includes a support frame 41, which is fixedly connected to the top of the push rod 34. A connecting rod 42 is hinged inside the support frame 41. A storage groove 43 is provided on the side of the base plate 1. A sliding groove 44 is provided inside the storage groove 43. A protective plate 45 is slidably and rotatably connected inside the sliding groove 44. A pulling frame 46 is fixedly connected to the top of the protective plate 45. The purpose of this is to ensure the safety of the operator.
[0033] As shown in the figure, the end of the connecting rod 42 away from the inside of the support frame 41 is hinged to the inside of the pulling frame 46. The base 2 has a moving groove 47. The side of the connecting rod 42 is slidably connected to the inside of the moving groove 47. The purpose is to ensure that the connecting rod 42 can stably pull the protective plate 45.
[0034] As shown in the figure, there are two connecting rods 42, pulling frame 46 and moving groove 47, which are symmetrical to each other along the vertical central axis of the base plate 1. The purpose is to ensure that the protective plate 45 can be stably supported and to ensure safety.
[0035] A specific application of this embodiment is as follows: When it is necessary to install the rebar cage, the workers place the rebar cage on the top of the platform 2 using a crane. Then, the motor 31 is started, and the output end of the motor 31 rotates. The rotation of the output end of the motor 31 drives the threaded rod 32 to rotate. The rotation of the threaded rod 32 drives the threaded sleeve 33 to move linearly through the limiting shaft 311. The movement of the threaded sleeve 33 drives the push rod 34 to move. During the movement of the push rod 34, it pushes the force plate 36. The force plate 36 rotates through the support shaft 35. The rotation of the support shaft 35 drives the connecting plate 37 to rotate. The rotation of the connecting plate 37 drives the fixed arc plate 38 to rotate. During the rotation of the fixed arc plate 38, it presses down and clamps the rebar cage. When it is necessary to contact and fix the rebar cage for adjustment, the push rod 34 moves away from the side of the force plate 36, so that the fixed arc plate 38 is automatically reset by the elasticity of the torsion spring 39.
[0036] As the threaded sleeve 33 moves, it drives the support frame 41 to move as well. The movement of the support frame 41 causes the connecting rod 42 to move inside the moving groove 47. The movement of the connecting rod 42 applies a pulling force to the protective plate 45 through the pulling frame 46, causing the protective plate 45 to be forced to leave the storage groove 43 through the sliding groove 44. When the bottom of the protective plate 45 moves to the end of the sliding groove 44, the protective plate 45 rotates due to the pulling force of the connecting rod 42, making the protective plate 45 perpendicular to the base plate 1, thus protecting the area around the base plate 1 and ensuring the safety of the operator.
[0037] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A device for a precast bridge pier reinforcement cage platform, characterized in that, Includes a base plate (1), the top of which is fixedly connected to a pedestal (2), and the pedestal (2) is provided with a fixing mechanism (3) inside; The fixing mechanism (3) includes a motor (31), which is fixedly connected inside the base (2). The output end of the motor (31) is fixedly connected to a threaded rod (32). The circumferential surface of the threaded rod (32) is threadedly connected to a threaded sleeve (33). The top of the threaded sleeve (33) is fixedly connected to a push rod (34). The base (2) is rotatably connected to a support shaft (35). The circumferential surface of the support shaft (35) is fixedly connected to a force-bearing plate (36). The circumferential surface of the support shaft (35) is fixedly connected to a connecting plate (37). The end of the connecting plate (37) away from the support shaft (35) is fixedly connected to a fixing arc plate (38).
2. The device for a precast bridge pier reinforcement cage platform according to claim 1, characterized in that, A torsion spring (39) is fixedly connected inside the base (2), and one end of the torsion spring (39) away from the inside of the base (2) is fixedly connected to the circumferential surface of the support shaft (35).
3. The device for a precast bridge pier reinforcement cage platform according to claim 1, characterized in that, The base (2) is internally fixedly connected to a limiting plate (310). The side of the limiting plate (310) penetrates the circumferential surface of the threaded rod (32). A limiting shaft (311) is fixedly connected to the side of the limiting plate (310). The circumferential surface of the limiting shaft (311) penetrates and slides through the side of the threaded sleeve (33).
4. The device for a precast bridge pier reinforcement cage platform according to claim 1, characterized in that, The number of the pedestal (2), the fixed arc plate (38) and the limiting shaft (311) are two, and they are symmetrical to each other along the vertical central axis of the base plate (1).
5. The device for a precast bridge pier reinforcement cage platform according to claim 1, characterized in that, The bottom plate (1) is provided with a protective mechanism (4) at its top. The protective mechanism (4) includes a support frame (41), which is fixedly connected to the top of the push rod (34). A connecting rod (42) is hinged inside the support frame (41). A storage groove (43) is provided on the side of the bottom plate (1). A sliding groove (44) is provided inside the storage groove (43). A protective plate (45) is slidably and rotatably connected inside the sliding groove (44). A pulling frame (46) is fixedly connected to the top of the protective plate (45).
6. The device for a precast bridge pier reinforcement cage platform according to claim 5, characterized in that, The end of the connecting rod (42) away from the inside of the support frame (41) is hinged to the inside of the pull frame (46). The base (2) has a moving groove (47), and the side of the connecting rod (42) is slidably connected to the inside of the moving groove (47).
7. The device for a precast bridge pier reinforcement cage platform according to claim 5, characterized in that, The number of the connecting rod (42), the pulling frame (46) and the moving groove (47) is two, and they are symmetrical to each other along the vertical central axis of the base plate (1).