A guide device for a prestressed concrete pile laying system
By improving the structural design of the guiding device, using arc-shaped reinforcing ribs and roller structures to reduce frictional resistance and stabilize the connecting parts, the problem of easy deformation of the guiding structure under long-term load was solved, and a high-precision concrete pile placement system was realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN JIANCHENGJIYE GRP
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-24
AI Technical Summary
The guide structure in the existing concrete pile placement system is prone to deformation under long-term load, which leads to displacement of the placement position and affects the grouting accuracy and construction efficiency.
It adopts a guide slide, a movable carriage, a carriage reinforcement structure, a drive mechanism, a traction structure, a side fixing plate, a sliding connection mechanism, and a guide tube clamping mechanism. The arc-shaped reinforcing ribs and roller structure reduce frictional resistance and ensure guiding accuracy. The anti-wear pads and locking nuts provide a stable connection and prevent the slider from deviating.
It effectively resists bending moment deformation, reduces driving resistance, ensures that the guide pipe is aligned with the pile hole, improves construction accuracy and efficiency, and avoids indentation deformation on the surface of the guide pipe.
Smart Images
Figure CN224549123U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of concrete pile technology, and in particular relates to a guiding device for a prestressed concrete pile placement system. Background Technology
[0002] A concrete pile placing system, also known as a concrete pumping placing system, is an automated or semi-automated mechanical device specifically designed for the efficient and precise pouring of concrete into the pile hole or pile formwork during pile foundation construction. It plays a crucial role in precast pile production. The guide structure within the concrete pile placing system is a key component ensuring that the concrete delivery conduit (or placing hose) is accurately and stably aligned with the center of the pile hole and lowered vertically or at an as-needed angle, especially important in deep holes, large-diameter piles, or complex geological conditions. Its coordination with the placing system directly affects pouring accuracy, construction efficiency, and quality and safety. Because the guide rails or moving frames in related technologies are prone to deformation under long-term loads, the placing position can easily deviate. Summary of the Invention
[0003] In view of this, the present invention aims to at least partially solve one of the related technical problems.
[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:
[0005] A guiding device for a prestressed concrete pile placement system includes a guide slide plate, a movable carriage, a carriage reinforcement structure, a drive mechanism, a traction structure, two sliding connection mechanisms, two side fixing plates, and two guide clamping mechanisms.
[0006] The two side fixing plates are symmetrically arranged on the left and right sides of the movable carriage, and the two side fixing plates are integrally connected to the movable carriage. The carriage reinforcement structure is provided on the movable carriage.
[0007] The guide slide plate is provided with a guide groove in the middle, and each of the side fixing plates is slidably engaged with the guide groove through a sliding connection mechanism.
[0008] The traction structure is disposed on the upper end face of the movable carriage, and the output end of the drive mechanism is connected to the traction structure.
[0009] The two catheter clamping mechanisms are symmetrically arranged on the front and rear sides of the movable carriage.
[0010] Furthermore, the side fixing plate has a downward-facing curved edge in the middle, and the downward-facing side of the curved edge is integrally connected to the end of the movable carriage, while the sliding connection mechanism is provided on the other side of the curved edge.
[0011] Furthermore, the sliding connection mechanism includes a connecting bolt, two anti-wear washers, and two locking nuts. The connecting bolt passes through the guide groove and the side fixing plate. Both anti-wear washers are disposed on the connecting bolt. One anti-wear washer is located between the countersunk head of the connecting bolt and the guide slide plate, and the other anti-wear washer is located between the side fixing plate and the guide slide plate. The two locking nuts are disposed at the bottom of the connecting bolt.
[0012] Furthermore, it also includes a buffer spring, which is located between the anti-wear pad at the bottom and the lock nut.
[0013] Furthermore, the carriage reinforcement structure includes a strip-shaped fixing seat, two strip-shaped ribs, and multiple arc-shaped reinforcing ribs. The multiple arc-shaped reinforcing ribs are evenly arranged on the lower end face of the movable carriage. The arc-shaped reinforcing ribs are integrally connected to the movable carriage. The strip-shaped fixing seat is located in the middle of the upper end face of the movable carriage. The two strip-shaped ribs are symmetrically arranged on the upper end face of the movable carriage. The bottom of the traction structure is detachably connected to the middle of the strip-shaped fixing seat.
[0014] Furthermore, the carriage reinforcement structure also includes two roller structures, which are symmetrically arranged on the strip-shaped fixing seat, with the roller portion of each roller structure abutting against the guide groove.
[0015] Furthermore, the conduit clamping mechanism includes a side positioning plate, a clamping plate, and two clamping bolts. The top of the side positioning plate is integrally connected to the movable slide. The clamping plate is disposed inside the side positioning plate. The inner end face of the clamping plate is provided with a groove that can cooperate with the concrete conveying conduit. The two clamping bolts are symmetrically disposed on the side positioning plate. The inner end of the clamping bolt is rotatably engaged with the clamping plate. The clamping bolt is threadedly engaged with the clamping bolt.
[0016] Furthermore, a mounting plate is provided at each of the left and right ends of the guide slide, and a positioning detection sensor is provided on the inner side of the mounting plate.
[0017] Furthermore, the traction structure is a fixed ring, and the output end of the drive mechanism is connected to the fixed ring.
[0018] Compared with existing technologies, the guiding device for a prestressed concrete pile placement system described in this utility model has the following advantages:
[0019] 1. The evenly distributed arc-shaped reinforcing ribs at the bottom of the carriage form an arched stress-dispersing structure, effectively resisting bending moment deformation caused by vertical loads; the symmetrical strip ribs at the top form a longitudinal anti-torsional frame, jointly suppressing lateral torsion of the carriage during high-speed movement. The reinforcing ribs are seamlessly fused with the carriage body, eliminating the risk of loosening of connecting parts, ensuring continuous and stable load transmission, and avoiding fatigue cracking caused by local stress concentration.
[0020] 2. The symmetrically arranged rollers on the strip-shaped fixed seat are in close contact with the inner wall of the guide groove, transforming traditional sliding friction into rolling friction and significantly reducing driving resistance. The upper and lower anti-wear pads in the sliding connection mechanism form a friction interface separation layer, blocking direct metal-to-metal contact and reducing the interference of wear particles on motion accuracy.
[0021] 3. The connecting bolts pass through the guide groove and the side fixing plate to form a rigid connection backbone; the double locking nuts clamp from the top and bottom to generate a controllable preload force, eliminating the gap between the slider and the guide rail; the double anti-wear pads isolate direct metal contact, block the tendency of lateral movement, and ensure that the moving carriage slides along the preset trajectory without deviation.
[0022] 4. The arc-shaped groove on the inner side of the clamping plate is precisely matched with the outer contour of the concrete conveying duct, forming a full-circumferential wrapping contact; eliminating the line contact stress concentration of traditional planar clamps and preventing indentation deformation on the duct surface. Attached Figure Description
[0023] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0024] Figure 1 This is a schematic diagram of a guiding device for a prestressed concrete pile placement system according to an embodiment of the present invention;
[0025] Figure 2 This is a schematic diagram of the movable carriage structure described in an embodiment of the present utility model;
[0026] Figure 3 This is a schematic diagram of the strip-shaped fixing seat and strip rib structure described in an embodiment of the present utility model;
[0027] Figure 4 This is a schematic diagram of the catheter clamping mechanism described in an embodiment of the present invention;
[0028] Figure 5 This is a schematic diagram of the sliding connection mechanism described in an embodiment of the present utility model;
[0029] Figure 6 This is a schematic diagram of the arc-shaped reinforcing rib structure described in an embodiment of the present invention.
[0030] Explanation of reference numerals in the attached figures:
[0031] 100. Guide slide plate; 110. Mounting plate; 120. Position detection sensor; 200. Traction structure; 210. Strip fixing seat; 220. Strip rib; 300. Moving carriage; 310. Side fixing plate; 320. Roller structure; 330. Arc-shaped reinforcing rib; 400. Conduit clamping mechanism; 410. Side positioning plate; 420. Clamping bolt; 430. Clamping plate; 510. Connecting bolt; 520. Anti-wear gasket; 530. Locking nut; 540. Buffer spring. Detailed Implementation
[0032] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0033] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0035] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0036] A guiding device for a prestressed concrete pile placing system, such as Figure 1As shown, the system includes a guide slide plate 100, a movable carriage 300, a carriage reinforcement structure, a drive mechanism, a traction structure 200, two sliding connection mechanisms, two side fixing plates 310, and two guide tube clamping mechanisms 400. The two side fixing plates 310 are symmetrically arranged on the left and right sides of the movable carriage 300, and are integrally connected to the movable carriage 300. The carriage reinforcement structure is provided on the movable carriage 300. A guide groove is provided in the middle of the guide slide plate 100, and each side fixing plate 310 is slidably engaged with the guide groove through a sliding connection mechanism. A mounting plate 110 is provided at each of the left and right ends of the guide slide plate 100, and a positioning detection sensor 120 is provided on the inner side of the mounting plate 110.
[0037] The traction structure 200 is mounted on the upper surface of the movable carriage 300, and the output end of the drive mechanism is connected to the traction structure 200. The carriage reinforcement structure includes a strip-shaped fixing seat 210, two strip-shaped ribs 220, and multiple arc-shaped reinforcing ribs 330. The multiple arc-shaped reinforcing ribs 330 are evenly arranged on the lower surface of the movable carriage 300, and the arc-shaped reinforcing ribs 330 are integrally connected to the movable carriage 300. The strip-shaped fixing seat 210 is located in the middle of the upper surface of the movable carriage 300, and the two strip-shaped ribs 220 are symmetrically arranged on the upper surface of the movable carriage 300. The bottom of the traction structure 200 is detachably connected to the middle of the strip-shaped fixing seat 210. The traction structure 200 is a fixed ring, and the output end of the drive mechanism is connected to the fixed ring. The threaded rod at the bottom of the fixed ring is threadedly connected to the strip-shaped fixing seat 210. The carriage reinforcement structure also includes two roller structures 320, which are symmetrically arranged on the strip-shaped fixing seat 210. The roller portion of each roller structure 320 abuts against a guide groove. The evenly distributed arc-shaped reinforcing ribs 330 at the bottom of the carriage form an arched stress-dispersing structure, effectively resisting bending moment deformation caused by vertical loads; the symmetrical strip ribs 220 at the top constitute a longitudinal anti-torsional frame, jointly suppressing lateral torsion of the carriage during high-speed movement. The reinforcing ribs are seamlessly fused with the carriage body, eliminating the risk of loosening of connecting parts, ensuring continuous and stable load transmission, and avoiding fatigue cracking caused by local stress concentration.
[0038] The rollers symmetrically arranged on the strip-shaped fixed seat 210 are in close contact with the inner wall of the guide groove, transforming traditional sliding friction into rolling friction and significantly reducing driving resistance. In the sliding connection mechanism, the upper and lower anti-wear pads 520 form a friction interface separation layer, blocking direct metal-to-metal contact and reducing the interference of wear particles on motion accuracy. The connecting bolts 510 penetrate the guide groove and the side fixed plate 310, forming a rigid connection backbone; the double locking nuts 530 clamp from above and below, generating a controllable preload force to eliminate the clearance between the slider and the guide rail; the double anti-wear pads 520 isolate direct metal-to-metal contact, blocking lateral movement and ensuring that the moving carriage 300 slides along the preset trajectory without deviation.
[0039] Two conduit clamping mechanisms 400 are symmetrically arranged on the front and rear sides of the movable slide 300. Each conduit clamping mechanism 400 includes a side positioning plate 410, a clamping plate 430, and two clamping bolts 420. The top of the side positioning plate 410 is integrally connected to the movable slide 300. The clamping plate 430 is located inside the side positioning plate 410, and its inner end face has a groove that mates with the concrete conveying conduit. The two clamping bolts 420 are symmetrically arranged on the side positioning plate 410, with their inner ends rotatably engaging with the clamping plate 430, and their threads engaging with each other. The arc-shaped groove on the inner side of the clamping plate 430 precisely matches the outer contour of the concrete conveying conduit, forming a full-circumferential wrapping contact; eliminating the line contact stress concentration of traditional planar clamps and preventing indentation deformation on the conduit surface.
[0040] The side fixing plate 310 has a downward-facing curved edge in the middle. The downward-facing side of the curved edge is integrally connected to the end of the movable slide 300, and a sliding connection mechanism is provided on the other side of the curved edge. The sliding connection mechanism includes a connecting bolt 510, two anti-wear washers 520, and two locking nuts 530. The connecting bolt 510 passes through the guide groove and the side fixing plate 310. Both anti-wear washers 520 are provided on the connecting bolt 510. One anti-wear washer 520 is located between the countersunk head of the connecting bolt 510 and the guide slide 100, and the other anti-wear washer 520 is located between the side fixing plate 310 and the guide slide 100. The two locking nuts 530 are provided at the bottom of the connecting bolt 510. A buffer spring 540 is also included, which is located between the bottom anti-wear washer 520 and the locking nut 530.
[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A guiding device for a prestressed concrete pile placement system, characterized in that: It includes a guide slide (100), a movable carriage (300), a carriage reinforcement structure, a drive mechanism, a traction structure (200), two sliding connection mechanisms, two side fixing plates (310), and two guide tube clamping mechanisms (400); Two side fixing plates (310) are symmetrically arranged on the left and right sides of the movable carriage (300), and the two side fixing plates (310) are integrally connected with the movable carriage (300). The carriage reinforcement structure is provided on the movable carriage (300). The guide slide plate (100) is provided with a guide groove in the middle, and each of the side fixing plates (310) is slidably engaged with the guide groove through a sliding connection mechanism; The traction structure (200) is disposed on the upper end face of the movable carriage (300), and the output end of the drive mechanism is connected to the traction structure (200); The two catheter clamping mechanisms (400) are symmetrically arranged on the front and rear sides of the movable carriage (300).
2. The guiding device for a prestressed concrete pile placing system according to claim 1, characterized in that: The side fixing plate (310) has a downward-facing curved edge in the middle. The downward-facing side of the curved edge is integrally connected to the end of the movable slide (300), and the sliding connection mechanism is provided on the other side of the curved edge.
3. A guiding device for a prestressed concrete pile placing system according to claim 1, characterized in that: The sliding connection mechanism includes a connecting bolt (510), two anti-wear washers (520) and two locking nuts (530). The connecting bolt (510) passes through the guide groove and the side fixing plate (310). Both anti-wear washers (520) are disposed on the connecting bolt (510). One anti-wear washer (520) is located between the countersunk head of the connecting bolt (510) and the guide slide plate (100), and the other anti-wear washer (520) is located between the side fixing plate (310) and the guide slide plate (100). The two locking nuts (530) are disposed at the bottom of the connecting bolt (510).
4. A guiding device for a prestressed concrete pile placing system according to claim 3, characterized in that: It also includes a buffer spring (540) located between the bottom anti-wear pad (520) and the locking nut (530).
5. A guiding device for a prestressed concrete pile placing system according to any one of claims 1-4, characterized in that: The carriage reinforcement structure includes a strip-shaped fixing seat (210), two strip-shaped ribs (220) and multiple arc-shaped reinforcing ribs (330). The multiple arc-shaped reinforcing ribs (330) are evenly arranged on the lower end face of the movable carriage (300). The arc-shaped reinforcing ribs (330) are integrally connected to the movable carriage (300). The strip-shaped fixing seat (210) is located in the middle of the upper end face of the movable carriage (300). The two strip-shaped ribs (220) are symmetrically arranged on the upper end face of the movable carriage (300). The bottom of the traction structure (200) is detachably connected to the middle of the strip-shaped fixing seat (210).
6. A guiding device for a prestressed concrete pile placing system according to claim 5, characterized in that: The carriage reinforcement structure also includes two roller structures (320), which are symmetrically arranged on the strip-shaped fixing seat (210), and the roller portion of each roller structure (320) abuts against the guide groove.
7. A guiding device for a prestressed concrete pile placing system according to claim 5, characterized in that: The conduit clamping mechanism (400) includes a side positioning plate (410), a clamping plate (430), and two clamping bolts (420). The top of the side positioning plate (410) is integrally connected to the movable slide (300). The clamping plate (430) is disposed inside the side positioning plate (410). The inner end face of the clamping plate (430) is provided with a groove that can cooperate with the concrete conveying conduit. The two clamping bolts (420) are symmetrically disposed on the side positioning plate (410). The inner end of the clamping bolt (420) is rotatably engaged with the clamping plate (430). The clamping bolts (420) are threadedly engaged with each other.
8. A guiding device for a prestressed concrete pile placing system according to claim 5, characterized in that: A mounting plate (110) is provided at both the left and right ends of the guide slide plate (100), and a positioning detection sensor (120) is provided on the inner side of the mounting plate (110).
9. A guiding device for a prestressed concrete pile placing system according to claim 5, characterized in that: The traction structure (200) is a fixed ring, and the output end of the drive mechanism is connected to the fixed ring.