Cast-in-place pile reinforcement cage connection auxiliary derrick

Abstract

The utility model relates to the technical field of cast-in-place pile construction, in particular to a cast-in-place pile reinforcement cage connection auxiliary derrick which comprises an annular seat, the annular seat is fixedly arranged on a base, a sliding groove is formed in the upper surface of the annular seat, a rotatable annular plate is placed in the sliding groove, and four sets of positioning and supporting mechanisms are symmetrically arranged on the base on the inner side of the annular plate. The positioning and supporting mechanism comprises a fixing support, the fixing support is fixedly arranged at the position, close to the edge of the through groove, of the base, a rotatable roller shaft is assembled in the fixing support, three sets of positioning supporting plates are evenly and fixedly arranged on the surface of the roller shaft, a follow-up gear is assembled at the front end of the roller shaft, and an inner toothed plate of an arc-shaped structure is arranged on the right side of the follow-up gear and can be connected with the follow-up gear in a meshed mode. The steel reinforcement cage can be stably supported through the four positioning and supporting structures, so that the steel reinforcement cage is kept stable in the connecting process, the connecting process of the steel reinforcement cage is quicker and more accurate, the working efficiency is greatly improved, and the working risk and the labor intensity are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of cast-in-place pile construction technology, and particularly relates to a cast-in-place pile reinforcement cage connecting auxiliary derrick. BACKGROUND

[0002] The cast-in-place pile is a kind of pile that is formed by the means such as mechanical drilling, steel pipe soil extrusion or manpower excavation in foundation soil to form pile hole, and then placing reinforcement cage and pouring concrete in it.In the construction of cast-in-place pile, the reinforcement cage is usually made in sections and then connected in the pile hole.

[0003] In the process of connecting the reinforcement cage, the existing construction is to directly pass the steel pipe through the reinforcement cage, and the steel pipe is temporarily positioned and supported outside the pouring hole, however, this way is dangerous when the steel pipe is put in and taken out, which may cause injury, affect personal safety, and is dangerous in operation environment, low in efficiency, high in labor intensity, and after the connection of the reinforcement cage is completed, the reinforcement cage needs to be lifted up by hoisting equipment, and then the steel pipe is taken out, which is relatively complicated and inconvenient, and the steel pipe may slip and fall into the pouring hole during the process of putting in and taking out, which affects the forming quality of the cast-in-place pile.In addition, when encountering complex geological conditions or large-diameter and long reinforcement cage, the limitation of the supporting and positioning by the steel pipe is more obvious, and it is difficult to ensure the smooth operation of the connection and the stability of the connection quality.Therefore, there is an urgent need for a cast-in-place pile reinforcement cage connecting auxiliary device that can effectively solve the above problems. SUMMARY

[0004] In view of the existing deficiencies, the utility model provides a cast-in-place pile reinforcement cage connecting auxiliary derrick, which can realize accurate positioning and stable support in the process of connecting the reinforcement cage, improve the connection efficiency and quality, and reduce the operation risk and labor intensity.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] A cast-in-place pile reinforcement cage connecting auxiliary derrick, comprising a base and a ring seat, the ring seat is fixed on the base, a sliding groove is formed in the inner surface of the upper surface of the ring seat, a rotatable annular plate is placed in the sliding groove, four groups of positioning and supporting mechanisms are symmetrically arranged on the inner side of the annular plate, and a polygonal through slot is formed in the center of the base.

[0007] The positioning support mechanism comprises a fixed support, a roller shaft, positioning support plates, an inner toothed plate, a jacking rod and a follow-up gear, the fixed support is fixedly arranged on the base near the edge of the through groove, the roller shaft is rotatably arranged in the fixed support, three groups of the positioning support plates are uniformly fixed on the surface of the roller shaft, the follow-up gear is arranged at the front end of the roller shaft, the inner toothed plate with an arc structure is arranged on the right side of the follow-up gear and is in meshing connection with the follow-up gear, the upper end of the inner toothed plate is hingedly connected with the upper end of the fixed support, the lower end of the inner toothed plate is connected to the base through a tension spring, the vertical plate is fixedly arranged on the base on the right side of the inner toothed plate, the jacking rod is slidably arranged in the vertical plate, the baffle is fixedly arranged on the jacking rod, the reset spring is arranged on the jacking rod in the area between the baffle and the vertical plate, and the top block is fixedly arranged on the inner wall of the annular plate on the right side of the jacking rod.

[0008] Further, the right end surface of the jacking rod is a slope, one end of the top block close to the jacking rod is a slope, and the slopes of the two are the same, and the right end of the jacking rod is in abutting connection with the top block.

[0009] Further, a plurality of groups of the rollers are symmetrically arranged on the base on the inner and outer sides of the annular plate, and the roller ring surface is in abutting connection with the surface of the annular plate.

[0010] Further, the stop ring is horizontally arranged on the inner and outer sides of the annular plate and is located below the rollers.

[0011] Further, the outer toothed plate with an arc structure is partially arranged on the outer ring surface of the annular plate, the driving gear is in meshing transmission connection with the outer side of the outer toothed plate, the driving shaft is rotatably connected with the base, and the handle is arranged on the upper end of the driving shaft.

[0012] Further, the base is composed of an upper bottom plate, a frame and a lower bottom plate, the upper bottom plate and the lower bottom plate are of the same specification, and the frame with two different diameters is arranged between the upper bottom plate and the lower bottom plate.

[0013] Compared with the prior art, the positioning support mechanism has the following beneficial effects:

[0014] 1、The four groups of positioning support mechanisms can stably support the reinforcement cage, so that the reinforcement cage is stable during the connection process, the connection process of the reinforcement cage is more rapid and accurate, the operation efficiency is greatly improved, and the operation risk and labor intensity are reduced.

[0015] 2. The utility model discloses a polygonal through slot on the base can accurately position the reinforcement cage in the pile hole center, is favorable to the lowering of reinforcement cage, can support and position reinforcement cage through three sets of positioning support plates on the positioning support mechanism, can rotate in the process of lowering reinforcement cage, does not affect the normal lowering of reinforcement cage, and the positioning support plate can limit support reinforcement cage at the edge of the pouring hole, prevents the collision of reinforcement cage with the pouring hole inner wall in the process of lowering, reduces the risk of hole wall collapse and reinforcement cage deformation.

[0016] 3. A plurality of rollers are symmetrically arranged on the bases on the inner and outer sides of the annular plate in the utility model, and the roller ring surface is in contact with the surface of the annular plate. The plurality of rollers can clamp and position the annular plate from the inner and outer sides, provide support for the annular plate, and also play a guiding role, ensuring that the annular plate maintains a stable trajectory during rotation, which helps to avoid deviation or inclination of the annular plate during rotation.

[0017] 4. An outer tooth plate with an arc structure is arranged on the outer ring surface of the annular plate in the utility model. The outer tooth plate is meshed with a driving gear on the outside. The driving gear is rotatably connected to the base through a driving shaft. A handle is assembled on the upper end of the driving shaft. The outer tooth plate, the driving gear and the handle constitute a power drive structure for driving the rotation of the annular plate. The rotation of the annular plate can be realized. When the operator rotates the handle, the driving shaft rotates, and the driving gear rotates. Since the driving gear is closely meshed with the outer tooth plate, the rotation of the driving gear will be converted into the rotation of the outer tooth plate, and the annular plate will be driven to rotate, thereby realizing the adjustment and control of the positioning support mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is the overall structure schematic diagram of the utility model.

[0019] Fig. 2 It is the top view of the utility model.

[0020] Fig. 3 It is the local structure schematic diagram of the utility model.

[0021] Fig. 4 It is the structure schematic diagram of the positioning support mechanism in the utility model.

[0022] Fig. 5 It is another angle structure schematic diagram of the positioning support mechanism in the utility model.

[0023] Fig. 6 It is the structure schematic diagram of the annular plate and the base in the utility model.

[0024] Fig. 7 It is the exploded structure schematic diagram of the base in the utility model.

[0025] In the diagram: 1. Annular plate; 2. Base; 21. Upper base plate; 22. Frame; 23. Lower base plate; 3. Roller; 4. Positioning support mechanism; 41. Fixed bracket; 42. Roller shaft; 43. Positioning support plate; 44. Internal gear plate; 45. Top rod; 46. Follower gear; 47. Tension spring; 48. Vertical plate; 49. Return spring; 410. Baffle plate; 411. Top block; 5. External gear plate; 6. Drive gear; 7. Drive shaft; 8. Handle; 9. Through groove; 10. Retaining ring; 11. Ring seat; 12. Slide groove. Detailed Implementation

[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0027] Example:

[0028] like Figs. 1 to 7 As shown, an auxiliary frame for connecting a reinforcing cage of a cast-in-place pile includes a base 2 and a ring seat 11. The ring seat 11 is fixed on the base 2. A groove 12 is opened inside the upper surface of the ring seat 11. A rotatable annular plate 1 is placed inside the groove 12. Four sets of positioning support mechanisms 4 are symmetrically arranged on the base 2 inside the annular plate 1. A through polygonal groove 9 is opened at the center of the base 2. The groove 9 is used to correspond to the grouting hole to facilitate the insertion of the reinforcing cage.

[0029] The positioning support mechanism 4 comprises a fixed support 41, a roller shaft 42, a positioning support plate 43, an inner tooth plate 44, a top rod 45 and a follow-up gear 46. The fixed support 41 is fixedly arranged on the base 2 near the edge of the through groove 9. The roller shaft 42 is rotatably arranged in the fixed support 41. The roller shaft 42 is uniformly provided with three groups of positioning support plates 43 on the surface. The three groups of positioning support plates 43 can support and position the reinforcement cage. At the same time, the roller shaft 42 can rotate during the lowering of the reinforcement cage, without affecting the normal lowering of the reinforcement cage. The positioning support plates 43 can limit and support the reinforcement cage at the edge of the pouring hole, so as to prevent the reinforcement cage from colliding with the inner wall of the pouring hole during the lowering. The front end of the roller shaft 42 is provided with the follow-up gear 46. The inner tooth plate 44 in the arc structure is arranged on the right side of the follow-up gear 46 and can be meshed and connected with the follow-up gear 46. The inner tooth plate 44 can be meshed and connected with the follow-up gear 46 to clamp and lock the follow-up gear 46, so that the three groups of positioning support plates 43 on the roller shaft 42 are fixed at the current position, and the positioning and support of the reinforcement cage are realized. The upper end of the inner tooth plate 44 is hingedly connected with the upper end of the fixed support 41, and the lower end is connected to the base 2 through the tension spring 47. The tension spring 47 can always be separated from the follow-up gear 46 when the inner tooth plate 44 is not stressed, so as to realize the automatic reset of the inner tooth plate 44. The base 2 on the right side of the inner tooth plate 44 is fixedly provided with a vertical plate 48. The vertical plate 48 is provided with a slidable top rod 45. The top rod 45 is fixedly provided with a baffle 410. The top rod 45 is provided with a reset spring 49 in the area between the baffle 410 and the vertical plate 48. A top block 411 is fixedly arranged on the inner wall of the annular plate 1 on the right side of the top rod 45. The top block 411 can rotate with the annular plate 1, so as to push the top rod 45 and move the top rod 45 forward to press the inner tooth plate 44, so as to move the inner tooth plate 44 forward and mesh with the follow-up gear 46, so as to lock the follow-up gear 46. The design solves the problem that the existing reinforcement cage is supported and positioned by a steel pipe. The steel pipe is dangerous when it is inserted and taken out, which may cause injury and affect personal safety. The working environment is dangerous, the efficiency is low, the labor intensity is large, and the steel pipe needs to be lifted upward after the reinforcement cage is connected, and then the steel pipe is taken out, which is more complicated and not convenient. The steel pipe may slip and fall into the pouring hole during the insertion and taking out, which affects the forming quality of the cast-in-place pile.

[0030] The four groups of positioning support structures can stably support the reinforcement cage, so that the reinforcement cage remains stable during connection, the connection process of the reinforcement cage is more rapid and accurate, the operation efficiency is greatly improved, and the operation risk and labor intensity are reduced.

[0031] In the embodiment, the right end surface of the ejector rod 45 is beveled, the right end of the ejector block 411 is beveled, and the slopes of the two are the same. The right end of the ejector rod 45 is in close contact with the left end surface of the ejector block 411, and the ejector rod 45 can smoothly slide along the beveled surface of the ejector block 411. At the same time, the right end of the ejector rod 45 can be located at different positions on the beveled surface of the ejector block 411 through the rotation of the ring plate 1, thereby realizing the movement of the ejector rod 45.

[0032] In the embodiment, a plurality of groups of rollers 3 are symmetrically arranged on the bases 2 on the inner and outer sides of the ring plate 1, and the ring surfaces of the rollers 3 are in close contact with the surface of the ring plate 1. The plurality of groups of rollers 3 can clamp and position the ring plate 1 from the inner and outer sides, provide support for the ring plate 1, and also serve as a guide to ensure that the ring plate 1 maintains a stable trajectory during rotation, which helps to prevent the ring plate 1 from deviating or tilting during rotation.

[0033] In the embodiment, a plurality of groups of rollers 3 are symmetrically arranged on the bases 2 on the inner and outer sides of the ring plate 1, and the ring surfaces of the rollers 3 are in close contact with the surface of the ring plate 1. The plurality of groups of rollers 3 can clamp and position the ring plate 1 from the inner and outer sides, provide support for the ring plate 1, and also serve as a guide to ensure that the ring plate 1 maintains a stable trajectory during rotation, which helps to prevent the ring plate 1 from deviating or tilting during rotation.

[0034] In the embodiment, an arc-shaped outer tooth plate 5 is arranged on the outer ring surface of the ring plate 1, the outer tooth plate 5 is meshed with a driving gear 6 on the outer side, the driving gear 6 is rotatably connected to the base 2 through a driving shaft 7, and a handle 8 is arranged on the upper end of the driving shaft 7. The outer tooth plate 5, the driving gear 6, and the handle 8 constitute a power driving structure for driving the rotation of the ring plate 1, and the rotation of the ring plate 1 can be realized. When the operator rotates the handle 8, the driving shaft 7 rotates, and then drives the driving gear 6 to rotate. Since the driving gear 6 is in close meshing with the outer tooth plate 5, the rotation of the driving gear 6 will be converted into the rotation of the outer tooth plate 5, and then the ring plate 1 will be driven to rotate, thereby realizing the adjustment and control of the positioning and supporting mechanism 4.

[0035] In the embodiment, the base 2 is composed of an upper bottom plate 21, a frame 22, and a lower bottom plate 23. The upper bottom plate 21 and the lower bottom plate 23 have the same specifications, and the frame 22 with different diameters is connected between the upper bottom plate 21 and the lower bottom plate 23. This design enhances the structural strength of the base 2, and the stability of the base 2 can provide stable support for the entire device and disperse the pressure.

[0036] The working principle of the auxiliary well frame for connecting the reinforcement cage of the cast-in-place pile is as follows:

[0037] The whole device is installed above the pouring hole, ensuring that the polygonal through slot 9 is aligned with the pouring hole. The reinforcement cage is lowered into the pouring hole through the polygonal through slot 9, at which time the positioning support plate 43 rotates with the lowering of the reinforcement cage and does not hinder the lowering process of the reinforcement cage. When the reinforcement cage is lowered to the position where connection is required, the handle 8 is rotated clockwise, driving the driving gear 6 to rotate through the handle 8. Since the driving gear 6 is in close engagement with the outer toothed plate 5, the rotation of the driving gear 6 will be converted into the rotation of the outer toothed plate 5, thereby driving the annular plate 1 to rotate counterclockwise. When the annular plate 1 rotates, the top block 411 on the annular plate 1 moves to abut the outer end of the jacking rod 45, thereby pushing the jacking rod 45 to move forward through the change in the slope of the top block 411, pushing the inner toothed plate 44 to move closer to the follow-up gear 46 through the jacking rod 45, until the inner toothed plate 44 is engaged with the follow-up gear 46, thereby achieving the fixation of the roller shaft 42 and the positioning support plate 43 thereon. The reinforcement cage is supported and positioned by the fixed support plate, so that the reinforcement cage is fixed at the current position. After the reinforcement cage is fixed, the connection work of the reinforcement cage is carried out. After the connection is completed, the handle 8 is reversed to reset the annular plate 1, and the jacking rod 45 and the inner toothed plate 44 are reset under the action of the reset spring 49, the inner toothed plate 44 is separated from the follow-up gear 46, and the positioning support plate 43 returns to the rotatable state, and then the reinforcement cage can be continuously lowered.

[0038] In summary, the pouring pile reinforcement cage connection auxiliary tower realizes stable support and precise positioning of the reinforcement cage, greatly improves the operation efficiency, reduces the operation risk and labor intensity, and is a very practical construction auxiliary equipment.

[0039] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description, and it is impossible to enumerate all the embodiments here. Any obvious changes or variations derived from the technical solutions of the utility model still fall within the protection scope of the utility model.

Claims

1. A pile cage connection auxiliary tower, comprising a base (2) and a ring seat (11), characterized in that: The ring seat (11) is fixed on the base (2), the upper surface of the ring seat (11) is internally provided with a sliding groove (12), the sliding groove (12) internally accommodates a rotatable annular plate (1), four sets of positioning support mechanisms (4) are symmetrically arranged on the base (2) at the inner side of the annular plate (1), and a through polygonal through groove (9) is formed in the center of the base (2). The positioning support mechanism (4) comprises a fixed support (41), a roller shaft (42), a positioning support plate (43), an inner tooth plate (44), a jacking rod (45) and a follow-up gear (46), the fixed support (41) is fixed on the base (2) near the edge of the through groove (9), the fixed support (41) is internally provided with the rotatable roller shaft (42), the roller shaft (42) is uniformly provided with the three sets of positioning support plates (43) on the surface, the roller shaft (42) is provided with the follow-up gear (46) at the front end, the follow-up gear (46) is provided with the arc-shaped inner tooth plate (44) on the right side, the inner tooth plate (44) is hingedly connected with the upper end of the fixed support (41), the lower end is connected to the base (2) through the tension spring (47), the base (2) is fixed with the stand (48) on the right side of the inner tooth plate (44), the stand (48) is internally provided with the slidable jacking rod (45), the jacking rod (45) is fixed with the baffle (410), the jacking rod (45) is provided with the reset spring (49) in the area between the baffle (410) and the stand (48), and the jacking rod (45) is fixed with the top block (411) on the inner wall of the annular plate (1) on the right side.

2. The cast-in-place pile reinforcement cage connection auxiliary derrick of claim 1, characterized in that: The right end surface of the jacking rod (45) is a slope, one end of the top block (411) close to the jacking rod (45) is a slope, and the slopes of the two are the same, and the right end of the jacking rod (45) is in contact with the top block (411).

3. The cast-in-place pile reinforcement cage connection auxiliary derrick of claim 1, wherein: A plurality of groups of rollers (3) are symmetrically arranged on the base (2) on the inner and outer sides of the annular plate (1), and the ring surface of the roller (3) is in contact with the surface of the annular plate (1).

4. The cast-in-place pile reinforcement cage connection auxiliary derrick of claim 3, characterized in that: A baffle ring (10) is horizontally arranged on the inner and outer sides of the annular plate (1), and the baffle ring (10) is located below the roller (3).

5. The cast-in-place pile reinforcement cage connection auxiliary derrick of claim 1, wherein: An outer tooth plate (5) in an arc structure is arranged on the outer ring surface of the annular plate (1), the outer tooth plate (5) is meshingly and drivingly connected with a driving gear (6) on the outer side, the driving gear (6) is rotatably connected with the base (2) through a driving shaft (7), and the driving shaft (7) is provided with a handle (8) at the upper end.

6. The cast-in-place pile reinforcement cage connection auxiliary derrick of claim 1, wherein: The base (2) is composed of an upper bottom plate (21), a frame (22) and a lower bottom plate (23), the upper bottom plate (21) and the lower bottom plate (23) are of the same specification, and the upper bottom plate (21) and the lower bottom plate (23) are connected through two groups of frames (22) in annular structures with different diameters.

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