Cast-in-place pile multidirectional fixing plate

By designing a multi-directional fixing plate for cast-in-place piles, the guide support ring and support fixing device are used to achieve multi-directional support and positioning of the steel reinforcement cage, solving the problem of steel reinforcement cage displacement in traditional fixing methods and improving the stability and bearing capacity of cast-in-place piles.

CN223893377UActive Publication Date: 2026-02-10THE THIRD CONSTR OF CHINA CONSTR EIGHTH ENG BUREAU
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Patent Information

Application Number
CN202520199316.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2026-02-10
Estimated Expiration
2035-02-08

AI Technical Summary

Technical Problem

The traditional steel reinforcement cage fixing structure of cast-in-place piles is unstable, which makes it impossible for the steel reinforcement cage to be accurately aligned with the center of the hole, affecting the welding quality and load-bearing capacity.

Method used

A multi-directional fixing plate for cast-in-place piles is adopted, including foot seats, guide support rings, rubber gaskets and support fixing devices. Multi-directional support and positioning are achieved through components such as threaded rods, clamps and flip covers, ensuring that the vertical center axis of the steel cage coincides with the center axis of the hole.

Benefits of technology

This improves the positioning and fixing stability of the reinforcing cage, prevents horizontal deviation, ensures accurate vertical alignment of multiple sets of reinforcing cages, and enhances the bearing capacity of the cast-in-place pile.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a cast-in-place pile multidirectional fixing plate, which relates to the field of constructional engineering and comprises a guide support ring and a support fixing device. The supporting ring frame is connected with the guiding supporting ring in a welded mode. The supporting and fixing device comprises a rotating disc, a support, a sliding block, a threaded rod, a fixing supporting plate, a turning cover, a clamping rod, a fixing sleeve and a clamping bolt. The rear end of the threaded rod is connected with a rotating disc in a welded mode. A sliding block is welded to the lower side face of the support and connected with a clamping bolt in a screwed mode. A turning cover is hinged to the upper side face of the fixed supporting plate, a fixed sleeve is hinged to the front end of the fixed supporting plate, and a clamping rod is meshed with the inner side face of the fixed sleeve; through the arrangement of the threaded rod, the fixing supporting plate, the clamping rod and the turning cover, it is guaranteed that the vertical central axis of the reinforcement ring cage and the central axis of the hole accurately coincide, the fixing stability of the reinforcement ring cage is improved, and the problem that due to the fact that a traditional cast-in-place pile reinforcement ring cage fixing structure is unstable, the reinforcement ring cage and the hole site center cannot accurately coincide is solved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of building engineering, more specifically, it is especially related to a bored pile multidirectional fixed plate. BACKGROUND

[0002] The bored pile is a kind of columnar ground building structure formed by erecting reinforcement cage in the hole formed by drilling and pouring concrete material, and the solid bored pile body can effectively enhance the bearing capacity of foundation and the stability of building. At present, before the concrete pouring of the bored pile, multiple reinforcement cage assemblies are sequentially put into the hole by crane, after the completion of the placement of a group of reinforcement cage assemblies, the bottom end of the reinforcement cage assembly is suspended in the hole, and it is necessary to position, support and fix the reinforcement cage assembly at the hole opening position to make the reinforcement cage assembly coincide with the hole center, facilitate the butt welding of the next group of reinforcement cage assemblies with the previous group of reinforcement cage assemblies, and ensure that the multiple groups of reinforcement cage assemblies welded and formed are vertical, however, the traditional reinforcement cage assembly support and fixation only uses a group of wooden boards or steel pipes transversely inserted into the reinforcement cage assembly, and then the wooden boards or steel pipes are directly placed on the top end of the pre-inserted sheath to vertically support and limit the reinforcement cage assembly, it can be seen that the support structure of this kind of way is too simple, and the transversely inserted wooden boards or steel pipes cannot horizontally limit and fix the reinforcement cage assembly, causing the reinforcement cage assembly to tilt and deviate, and cannot accurately coincide with the hole center, resulting in the vertical profile of the multiple groups of reinforcement cage assemblies after welding and connecting to be inclined and curved, which seriously reduces the bearing capacity of the bored pile reinforcement structure. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the above technical problems, the utility model provides a kind of bored pile multidirectional fixed plate to solve the problem that the traditional bored pile reinforcement cage assembly fixing structure is unstable, which causes the reinforcement cage assembly to not accurately coincide with the hole center.

[0004] The utility model provides a kind of bored pile multidirectional fixed plate, be applied to reinforcement cage, including foot stool, the upper side of foot stool is equipped with two groups of through -hole, foot stool is welded and is connected in the outer side of support ring frame, still include guide support ring, rubber washer and support fixing device, support ring frame is welded and is connected with guide support ring, support ring frame is bonded with rubber washer, the number of support fixing device is four groups, and support fixing device includes turntable, support, sliding block, threaded rod, fixed support plate, flip, knob, clamping rod, fixed sleeve and clamping bolt, the rear end of threaded rod is welded and is connected with turntable, the lower side of support is welded and is connected with sliding block, and sliding block is screwed with clamping bolt, the upper side of fixed support plate is hinged with flip, and the front end of fixed support plate is hinged with fixed sleeve, and the inner side of fixed sleeve is engaged and is connected with clamping rod, and the upper side of clamping rod is welded and is connected with knob, the center position of flip is arc bending plate structure, and the front end of flip is equipped with recess that penetrates up and down.

[0005] In at least some embodiments, the bracket is a groove structure that runs through the left and right sides. The rear and front groove walls of the bracket groove are provided with through holes that run through the front and back. The unthreaded rear end of the threaded rod is rotatably connected to the through hole in the rear groove wall of the bracket groove, and the unthreaded front end of the threaded rod is rotatably connected to the through hole in the front groove wall of the bracket groove. The bottom of the bracket groove is provided with a scale mark near the right end. The front wall of the bracket groove is provided with a rectangular through groove that runs through the front and back, and the fixed support plate is inserted into the rectangular through groove of the bracket.

[0006] In at least some embodiments, the fixed support plate is an L-shaped folded plate structure. The front side of the fixed support plate is provided with an open groove that runs vertically through the plate. The left and right sides of the open groove are provided with through holes. The upper side of the fixed support plate is provided with an arc-shaped groove near the front end. The cage ring of the reinforcing cage is placed in the arc-shaped groove of the fixed support plate. The center of the rear end of the L-shaped folded plate of the fixed support plate is provided with a threaded through hole structure that runs from front to back. The threaded rod is engaged with the threaded through hole of the fixed support plate.

[0007] In at least some embodiments, the front side of the slider is provided with a threaded through hole that runs from front to back. The clamping bolt is screwed into the threaded through hole of the slider, so that the clamping bolt moves forward along the threaded through hole of the slider. The clamping bolt presses against the outer side of the rubber washer to fix the position of the slider. The right side of the slider is provided with an arc-shaped path through hole that runs from left to right. The guide support ring is embedded in the through hole of the slider.

[0008] In at least some embodiments, the outer side of the clamping rod is provided with a ring plate and a threaded structure from top to bottom, and the diameter of the ring plate of the clamping rod is larger than the width of the groove on the front side of the flip cover.

[0009] In at least some embodiments, the fixing sleeve is a cylindrical structure that runs vertically through the body. The inner side of the fixing sleeve cylindrical structure is provided with threads. The threads on the outer side of the clamping rod are engaged with the threaded structure on the inner side of the fixing sleeve cylindrical structure. The outer side of the fixing sleeve cylindrical structure is provided with two sets of symmetrically distributed protrusions. The protrusions of the fixing sleeve are rotatably connected to the through holes of the fixing support plate.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. In the utility model, by inserting and nesting the guide support ring in the arc-shaped through hole of the slider, the slider can arbitrarily change its position along the guide support ring, thereby realizing the horizontal multi-directional clamping support of the reinforcing cage of the cast-in-place pile by the support fixing device, and making the clamping position of the reinforcing cage of the support fixing device more flexible.

[0012] 2. In the utility model, the threaded engagement transmission structure formed by the threaded rod in the threaded through hole of the fixed support plate allows the fixed support plate to extend back and forth along the rectangular through groove of the bracket. This enables the fixed support plate to change its support and clamping position according to the diameter of the rebar cage. The displacement of the fixed support plate can be clearly and accurately determined by the scale line on the upper side of the bracket groove bottom. This ensures that the displacement of the fixed support plates of the four sets of support fixing devices is the same, and ensures that the vertical center axis of the rebar cage coincides with the center axis of the hole.

[0013] 3. In this utility model, the threaded transmission structure formed by the outer thread of the clamping rod and the inner thread of the fixing sleeve is used to clamp the flip cover with the outer ring plate of the clamping rod and the fixing support plate. This clamps and fixes the rebar cage between the arc-shaped groove of the fixing support plate and the arc-shaped bent plate structure of the flip cover, preventing the rebar cage from horizontally shifting or tilting. This method abandons the traditional method of supporting the rebar cage with a single set of wooden boards or steel pipes, and improves the positioning and fixing stability of the rebar cage. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of this utility model from a bottom view.

[0016] Figure 3 This is a front view structural diagram of this utility model.

[0017] Figure 4 This is a top view of the structure of this utility model.

[0018] Figure 5 This is a schematic diagram of the support and fixing device structure of this utility model.

[0019] Figure 6 This is a right-side structural schematic diagram of the support and fixing device of this utility model.

[0020] Figure 7 This is a top view schematic diagram of the support and fixing device of this utility model.

[0021] Figure 8 This is a schematic diagram of the right-side cross-sectional structure of the support and fixing device of this utility model.

[0022] Figure label:

[0023] 1. Reinforcing cage;

[0024] 2. Foot base;

[0025] 3. Support frame;

[0026] 4. Guide support ring;

[0027] 5. Rubber gaskets;

[0028] 6. Support and fixing device; 601. Turntable; 602. Bracket; 603. Slider; 604. Threaded rod; 605. Fixed support plate; 606. Flip cover; 607. Knob; 608. Clamping rod; 609. Fixing sleeve; 610. Clamping bolt. Detailed Implementation

[0029] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0030] like Figures 1-8 As shown, this utility model provides a multi-directional fixing plate for cast-in-place piles, applied to a reinforcing cage 1, including a foot seat 2; the upper side of the foot seat 2 is provided with two sets of through holes, and the foot seat 2 is welded to the outer side of the support ring frame 3; it also includes a guide support ring 4, a rubber washer 5, and a support fixing device 6; the support ring frame 3 is welded to the guide support ring 4, and the support ring frame 3 is bonded to the rubber washer 5; the number of support fixing devices 6 is four sets, and the support fixing device 6 includes a turntable 601, a bracket 602, a slider 603, a threaded rod 604, a fixing plate 605, a flip cover 606, a knob 607, and a clamp. The rod 608, the fixing sleeve 609, and the clamping bolt 610 are included; a turntable 601 is welded to the rear end of the threaded rod 604; a slider 603 is welded to the lower side of the bracket 602, and the slider 603 is screwed to the clamping bolt 610; a flip cover 606 is hinged to the upper side of the fixed support plate 605, a fixing sleeve 609 is hinged to the front end of the fixed support plate 605, a clamping rod 608 is engaged with the inner side of the fixing sleeve 609, and a knob 607 is welded to the upper side of the clamping rod 608; the center of the flip cover 606 is an arc-shaped curved plate structure, and the front end of the flip cover 606 is provided with a groove that runs vertically through it.

[0031] In this invention, when performing the positioning and fixing work of the reinforcing cage support for cast-in-place piles, the support fixing device 6 is manually pushed. Because the arc-shaped path through-hole of the slider 603 is nested on the outside of the guide support ring 4, the support fixing device 6 rotates and moves along the guide support ring 4 around its vertical central axis. After moving to the appropriate position, the clamping bolt 610 is tightened. Since the outer thread of the clamping bolt 610 is screwed into the threaded through-hole of the slider 603, the front end of the clamping bolt 610 passes through the threaded through-hole of the slider 603 and presses against the outer side of the rubber washer 5, thus fixing the support fixing device 6 in that position. Then, the turntables 601 of the four sets of support fixing devices 6 are manually rotated. The turntables 601 drive the threaded rods 604 to rotate. Since the outer thread of the threaded rod 604 is engaged with the threaded through-hole of the fixed support plate 605, the rotation of the threaded rod 604 drives the fixed support plate 605 to move back and forth along the rectangular through-slot of the bracket 602, moving it to the appropriate support position according to the diameter of the reinforcing cage 1. The support position is then established, and the lower plate of the annular steel reinforcement structure of the steel cage 1, lifted by the external crane, is placed in the arc-shaped groove of the fixed support plate 605. Then, the flip cover 606 is manually flipped downwards, its arc-shaped curved plate structure covering the upper side of the annular steel reinforcement structure of the steel cage 1. Next, the fixing sleeve 609 is manually flipped upwards, causing the engaging clamping rod 608 to flip upwards simultaneously. The clamping rod 608 flips into the groove of the flip cover 606, at which point the outer ring plate of the clamping rod 608 is located within the groove of the flip cover. On the upper side of the groove 606, turn the knob 607. The knob 607 drives the clamping rod 608 to rotate. Since the outer side of the clamping rod 608 is threadedly engaged with the threaded structure on the inner side of the cylinder of the fixing sleeve 609, the clamping rod 608 moves downward. At this time, the ring plate on the outer side of the clamping rod 608 presses the upper side of the groove of the flip cover 606, so that the flip cover 606 of the four sets of support and fixing devices 6 and the fixing support plate 605 tightly close the annular steel structure of the steel cage 1, thus completing the support, positioning and fixing work of the steel cage 1.

[0032] In this embodiment, the bracket 602 is a groove structure that extends from left to right. Both the rear and front walls of the groove in the bracket 602 have through holes extending from front to back. The unthreaded rear end of the threaded rod 604 is rotatably connected to the through hole in the rear wall of the groove in the bracket 602, and the unthreaded front end is rotatably connected to the through hole in the front wall of the groove in the bracket 602. The bracket 602 provides rotatable support for the threaded rod 604. A scale mark is provided near the right end of the bottom of the groove in the bracket 602 to facilitate observation of the telescopic movement of the fixed support plate 605, ensuring that the displacement of the fixed support plate 605 in each set of supporting and fixing devices 6 is the same, and ensuring that the vertical central axis of the fixed support plate 605 supporting the reinforcing cage 1 is accurately aligned with the center of the hole. A rectangular through groove is provided on the front wall of the groove in the bracket 602, and the fixed support plate 605 is inserted into the rectangular through groove of the bracket 602, allowing the fixed support plate 605 to slide directionally along the rectangular through groove of the bracket 602.

[0033] In this embodiment, the fixed support plate 605 is an L-shaped folded plate structure. The front side of the fixed support plate 605 is provided with an open groove that runs vertically through the plate. The left and right sides of the open groove are provided with through holes. The upper side of the fixed support plate 605 is provided with an arc-shaped groove near the front end. The cage ring of the reinforcing cage 1 is placed in the arc-shaped groove of the fixed support plate 605. The center of the rear end of the L-shaped folded plate of the fixed support plate 605 is provided with a threaded through hole structure that runs from front to back. The threaded rod 604 is engaged with the threaded through hole of the fixed support plate 605. The threaded rod 604 drives the fixed support plate 605 to slide forward or backward along the through groove of the bracket 602, so that the fixed support plate 605 changes its support position according to the diameter of the reinforcing cage 1.

[0034] In this embodiment, the front side of the slider 603 is provided with a threaded through hole that runs from front to back. The clamping bolt 610 is screwed into the threaded through hole of the slider 603, so that the clamping bolt 610 moves forward along the threaded through hole of the slider 603. The clamping bolt 610 presses against the outer side of the rubber washer 5 to fix the position of the slider 603. The right side of the slider 603 is provided with an arc-shaped path through hole that runs from left to right. The guide support ring 4 is embedded in the through hole of the slider 603, so that the slider 603 rotates and moves around the vertical central axis of the support ring frame 3 along the guide support ring 4, thereby arbitrarily selecting the clamping position of the steel cage 1 from multiple horizontal directions.

[0035] In this embodiment, the outer side of the clamping rod 608 is provided with a ring plate and a threaded structure from top to bottom. The diameter of the ring plate of the clamping rod 608 is larger than the width of the groove on the front side of the flip cover 606, so that the ring plate of the clamping rod 608 presses the upper side of the flip cover 606, thereby fixing the flip cover 606 between the ring plate of the clamping rod 608 and the fixed support plate 605. This allows the reinforcing cage 1 to be stably clamped between the arc-shaped groove of the fixed support plate 605 and the arc-shaped bent plate of the flip cover 606, preventing the reinforcing cage 1 from shifting horizontally.

[0036] In this embodiment, the fixing sleeve 609 is a cylindrical structure that extends vertically. The inner side of the cylindrical structure of the fixing sleeve 609 is threaded. The thread on the outer side of the clamping rod 608 is engaged with the threaded structure on the inner side of the cylindrical structure of the fixing sleeve 609. The outer side of the cylindrical structure of the fixing sleeve 609 is provided with two sets of symmetrically distributed protrusions. The protrusions of the fixing sleeve 609 are rotatably connected to the through hole of the fixing support plate 605, so that the fixing sleeve 609 can flip up and down in the opening groove of the fixing support plate 605. Without completely unscrewing the clamping rod 608, the clamping rod 608 can be disengaged from the groove on the front side of the flip cover 606, so that the flip cover 606 can be flipped upward and disengaged from the fixing support plate 605, making the disassembly of the reinforcing cage 1 between the fixing support plate 605 and the flip cover 606 faster.

[0037] All the above components are installed, connected, or set up using common mechanical methods, such as welding, threaded connections, and screw connections. Furthermore, the specific structure, model, and coefficient indicators of all components are based on their own technologies, and any method that achieves the desired effect can be implemented. The steel cage 1 and clamping bolts 610 mentioned above are common commercially available components; upon purchase and use, simply connect them according to the instruction manual provided with the purchase, and therefore will not be elaborated upon further here.

[0038] The technical solution of this utility model is not limited to the scope of the embodiments of this utility model. All technical contents not described in detail in this utility model are known technologies.

Claims

1. A multi-directional fixing plate for cast-in-place piles, applied to a reinforcing cage (1), comprising a foot support (2); the upper side of the foot support (2) is provided with two sets of through holes, and the foot support (2) is welded to the outer side of a support frame (3); characterized in that: It also includes a guide support ring (4), a rubber washer (5), and a support fixing device (6); the support ring frame (3) is welded to the guide support ring (4), and the support ring frame (3) is bonded to the rubber washer (5); the number of the support fixing devices (6) is four sets, and the support fixing devices (6) include a turntable (601), a bracket (602), a slider (603), a threaded rod (604), a fixed support plate (605), a flip cover (606), a knob (607), a clamping rod (608), a fixing sleeve (609), and a clamping bolt (610); the rear end of the threaded rod (604) A turntable (601) is welded to the support (602); a slider (603) is welded to the lower side of the support (602), and the slider (603) is screwed to the clamping bolt (610); a flip cover (606) is hinged to the upper side of the fixed support plate (605), a fixed sleeve (609) is hinged to the front end of the fixed support plate (605), a clamping rod (608) is engaged with the inner side of the fixed sleeve (609), and a knob (607) is welded to the upper side of the clamping rod (608); the center of the flip cover (606) is an arc-shaped curved plate structure, and the front end of the flip cover (606) is provided with a groove that runs vertically through it.

2. The multi-directional fixing plate for cast-in-place piles as described in claim 1, characterized in that: The bracket (602) is a groove structure that runs through the left and right sides. The rear and front groove walls of the bracket (602) are provided with through holes that run through the front and back. The unthreaded end of the threaded rod (604) is rotatably connected to the through hole in the rear groove wall of the bracket (602), and the unthreaded end of the threaded rod (604) is rotatably connected to the through hole in the front groove wall of the bracket (602). The bottom of the bracket (602) groove is provided with a scale mark near the right end. The front wall of the bracket (602) groove is provided with a rectangular through groove that runs through the front and back. The fixed support plate (605) is inserted into the rectangular through groove of the bracket (602).

3. The multi-directional fixing plate for cast-in-place piles as described in claim 1, characterized in that: The fixed support plate (605) is an L-shaped folded plate structure. The front side of the fixed support plate (605) is provided with an open groove that runs vertically through the inside. The left and right sides of the open groove are provided with through holes. The upper side of the fixed support plate (605) is provided with an arc-shaped groove near the front end. The cage ring of the steel cage (1) is placed in the arc-shaped groove of the fixed support plate (605). The center of the rear end of the L-shaped folded plate of the fixed support plate (605) is provided with a threaded through hole structure that runs from front to back. The threaded rod (604) is engaged and connected in the threaded through hole of the fixed support plate (605).

4. The multi-directional fixing plate for cast-in-place piles as described in claim 1, characterized in that: The front side of the slider (603) is provided with a threaded through hole that runs from front to back. The clamping bolt (610) is screwed into the threaded through hole of the slider (603), so that the clamping bolt (610) moves forward along the threaded through hole of the slider (603). The clamping bolt (610) presses against the outer side of the rubber washer (5) to fix the position of the slider (603). The right side of the slider (603) is provided with an arc-shaped path through hole that runs from left to right. The guide support ring (4) is embedded in the through hole of the slider (603).

5. The multi-directional fixing plate for cast-in-place piles as described in claim 1, characterized in that: The outer side of the clamp (608) is provided with a ring plate and a threaded structure from top to bottom. The diameter of the ring plate of the clamp (608) is greater than the width of the groove on the front side of the flip cover (606).

6. The multi-directional fixing plate for cast-in-place piles as described in claim 1, characterized in that: The fixing sleeve (609) is a cylindrical structure that runs vertically through the body. The inner side of the cylindrical structure of the fixing sleeve (609) is provided with threads. The threads on the outer side of the clamping rod (608) are engaged with the threaded structure on the inner side of the cylindrical structure of the fixing sleeve (609). The outer side of the cylindrical structure of the fixing sleeve (609) is provided with two sets of symmetrically distributed protrusions. The protrusions of the fixing sleeve (609) are rotatably connected to the through hole of the fixing support plate (605).