CN219364609U - Butt joint positioning device for large-diameter pile foundation steel casing - Google Patents

Abstract

The utility model discloses a large-diameter pile foundation steel pile casing butt joint positioning device which comprises an upper steel pile casing and a lower steel pile casing, wherein L-shaped clamping grooves which are transversely distributed are welded and fixed on two sides of the top end of the lower steel pile casing, wedge-shaped blocks are inserted into the L-shaped clamping grooves, embedded blocks are welded and fixed on the outer sides of the wedge-shaped blocks, notches are formed in the inner walls of the L-shaped clamping grooves, studs are arranged in the notches in the inner walls of the L-shaped clamping grooves, through holes matched with stud structures are formed in the embedded blocks, the embedded blocks are sleeved outside the studs through the inner through holes, and fixing nuts are connected to the outer sides of the joints of the embedded blocks and the studs through thread structures. The large-diameter pile foundation steel pile casing butt joint positioning device can enable the steel pile casings to be in butt joint more tightly, prevents the situation of butt joint deviation, and is favorable for improving construction quality.

Description

Butt joint positioning device for large-diameter pile foundation steel casing

Technical Field

The utility model relates to the technical field of pile foundation construction, in particular to a large-diameter pile foundation steel casing butt joint positioning device.

Background

In bridge pile foundation construction, the pile casing plays roles of drill bit guiding, pile hole positioning, orifice stabilizing and the like. The structural form of the pile casing mainly comprises a steel pile casing and a reinforced concrete pile casing, wherein the steel pile casing is widely applied to the current bridge construction. For the diameter of a large-diameter pile foundation steel casing, especially for the diameter of a deep water large-diameter pile foundation steel casing, the diameter of the casing is large and the length of the casing is long, so that higher requirements are put forward on the machining precision of the casing, and the pile foundation cannot be normally constructed due to slight diameter deviation and deformation.

At present, multistage butt joint is usually required in the construction process of a large-diameter pile foundation steel casing, but because the butt joint structure of the steel casing section of the prior art is relatively simple, the problems of insufficient tightness and deviation of butt joint are commonly caused, the phenomena of slurry leakage, unsatisfied pile foundation perpendicularity and the like in the punching process are caused, and the quality problem is easily caused.

Disclosure of Invention

The utility model aims to provide a large-diameter pile foundation steel casing butt joint positioning device, which solves the problems that the butt joint structure of the section of the conventional large-diameter pile foundation steel casing is relatively simple, the butt joint is not tight enough and the butt joint is deviated, and the phenomena of slurry leakage, unsatisfied pile foundation perpendicularity and the like in the punching process are caused.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a major diameter pile foundation steel protects a section of thick bamboo interfacing and positioning device, is including last steel protection a section of thick bamboo and lower steel protection a section of thick bamboo, the equal welded fastening in both sides on lower steel protection a section of thick bamboo top is the L type draw-in groove of transverse distribution, the inside of L type draw-in groove alternates there is the wedge, just the outside welded fastening of wedge has the gomphosis piece, set up the notch on the inner wall of L type draw-in groove, be equipped with the double-screw bolt in the notch on the inner wall of L type draw-in groove, just the inside of gomphosis piece is equipped with the perforation with double-screw bolt structure matched with, the outside at the double-screw bolt is established through inside perforation cover to the gomphosis piece, and the outside of gomphosis piece and double-screw bolt junction is connected with fixation nut through the helicitic texture.

Preferably, the upper and lower ends of the outer side of the embedded block are respectively provided with a fixing strip, and one side corresponding to the fixing strips is fixed with a clamping piece through an elastic rubber block.

Preferably, the opening direction of the clamping piece corresponds to the opening direction of the clamping piece, and the inner wall of the clamping piece is matched with the outer wall structure of the fixing nut.

Preferably, the outer walls of the two sides of the lower steel casing are fixedly welded with supporting blocks, and the inside of the supporting blocks is matched with the structure of the bottom end of the wedge-shaped block.

Preferably, the front end of the supporting block is of an opening structure, and a rubber pad is fixedly bonded on the inner wall of the supporting block.

Preferably, the inner side of the wedge block is of a vertical surface structure, and the wedge blocks are symmetrically distributed on two sides of the connecting section of the upper steel casing and the lower steel casing.

Compared with the prior art, the utility model has the beneficial effects that: the large-diameter pile foundation steel pile casing butt joint positioning device can enable the steel pile casings to be in butt joint more tightly, prevents the situation of butt joint deviation, and is favorable for improving construction quality. The device is through last steel pile casing and lower steel pile casing butt joint end that needs the butt joint set up L type draw-in groove to interlude wedge in L type draw-in groove carries out spacing locking, and wedge accessible supports to press and protects the linkage segment both sides of a section of thick bamboo and lower steel pile casing and fix a position, goes up steel pile casing and lower steel pile casing butt joint end and can be under the spacing of wedge effectual improvement butt joint compactness.

Drawings

FIG. 1 is a schematic diagram of a large diameter pile foundation steel casing butt joint positioning device according to the present utility model;

FIG. 2 is a schematic diagram showing a side view of the connection between a wedge block and an L-shaped clamping groove of a large-diameter pile foundation steel casing butt joint positioning device;

FIG. 3 is a schematic diagram showing a top view of the connection between a wedge block and an L-shaped clamping groove of a large-diameter pile foundation steel casing butt joint positioning device;

fig. 4 is a schematic diagram of a top view structure of a wedge block and a bracket block connection of a large-diameter pile foundation steel casing butt joint positioning device.

In the figure: 1. a steel-feeding pile casing; 2. a lower steel casing; 3. an L-shaped clamping groove; 4. wedge blocks; 5. a support block; 6. a fitting block; 7. a stud; 8. a fixing nut; 9. a fixing strip; 10. and a clamping piece.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: a large-diameter pile foundation steel pile casing butt joint positioning device comprises an upper steel pile casing 1 and a lower steel pile casing 2, wherein two sides of the top end of the lower steel pile casing 2 are welded and fixed with L-shaped clamping grooves 3 which are transversely distributed, wedge-shaped blocks 4 are inserted in the L-shaped clamping grooves 3, embedded blocks 6 are welded and fixed on the outer sides of the wedge-shaped blocks 4, notches are formed in the inner walls of the L-shaped clamping grooves 3, studs 7 are arranged in the notches in the inner walls of the L-shaped clamping grooves 3, through holes matched with stud 7 in structure, the embedded blocks 6 are sleeved outside the studs 7 through the holes in the inner parts, fixing nuts 8 are connected to the outer sides of the joints of the embedded blocks 6 and the studs 7 through threaded structures, when the upper steel pile casing 1 and the lower steel pile casing 2 are mutually butted, the wedge-shaped blocks 4 can be pressed against two sides of the connecting sections of the upper steel pile casing 1 and the lower steel pile casing 2 through the inner parts inserted in the L-shaped clamping grooves 3, the wedge-shaped block 4 can drive the embedded block 6 to be embedded into the notch on the inner wall of the L-shaped clamping groove 3 and sleeved outside the stud 7 in the process of insertion until the wedge-shaped block 4 is inserted into a proper position and then fixed on the outer side of the embedded block 6 by the fixing nut 8 so as to limit and lock the position of the wedge-shaped block 4, so that the wedge-shaped block 4 can effectively position two sides of a connecting section of the upper steel casing 1 and the lower steel casing 2, the butted surface line type of the wedge-shaped block is more compact and straight, the situation of deviation when the upper steel casing 1 and the lower steel casing 2 are butted is prevented, the construction quality is improved, the dislocation phenomenon is not easy to occur, the upper end and the lower end of the outer side of the embedded block 6 are both provided with the fixing strips 9, the fixing strips 9 and the embedded block 6 form an integrated structure, one side corresponding to the fixing strips 9 is fixed with the clamping sheets 10 by the elastic rubber blocks, when the fixing nut 8 is fixed on the outer side of the joint of the embedded block 6 and the stud 7, the clamping piece 10 can generate a certain amplitude of expansion and contraction on one side corresponding to the fixing strip 9 under the elastic acting force of the elastic rubber block, so that the fixing nut 8 can be clamped and fixed at the upper end and the lower end of the fixing nut 8, the fixing stability of the fixing nut 8 is enhanced, the opening direction of the clamping piece 10 corresponds, the inner wall of the clamping piece 10 is matched with the outer wall structure of the fixing nut 8, the clamping piece 10 of the structure can be more matched and fixed on the upper side and the lower side of the fixing nut 8, the fixing nut 8 can be conveniently disassembled and assembled on the stud 7, the supporting blocks 5 are welded and fixed on the outer walls of the two sides of the lower steel protective cylinder 2, the supporting blocks 5 are positioned below the L-shaped clamping grooves 3, the inside of the supporting blocks 5 are matched with the bottom structure of the wedge-shaped blocks 4, the structure can extend the bottom end into the support block 5 when the wedge block 4 is inserted into the L-shaped clamping groove 3, so that the support block 5 can play a role in supporting the wedge block 4, the firmness of the wedge block 4 in limiting and locking is further improved, the front end of the support block 5 is of an opening structure, a rubber pad is fixedly adhered to the inner wall of the support block 5, the opening at the front end of the support block 5 can facilitate the wedge block 4 to transversely embed the bottom end into the support block 5, the rubber pad in the support block 5 can enhance the friction force contacted with the wedge block 4, the bottom end of the wedge block 4 is more stable when being embedded, the inner side of the wedge block 4 is of a vertical surface structure, the wedge block 4 is symmetrically distributed on two sides of the connecting section of the upper steel protection cylinder 1 and the lower steel protection cylinder 2, the wedge block 4 can be symmetrically pressed on two sides of the connecting section of the upper steel protection cylinder 1 and the lower steel protection cylinder 2, to ensure the overall effect of the wedge 4 in positioning.

Working principle: when the large-diameter pile foundation steel pile casing butt joint positioning device is used, firstly when the upper steel pile casing 1 and the lower steel pile casing 2 are required to be mutually butted, the bottom end of the upper steel pile casing 1 is firstly arranged at the top end of the lower steel pile casing 2, then the wedge-shaped block 4 is transversely inserted into the L-shaped clamping groove 3, when the inner wall of the wedge-shaped block 4 contacts the two sides of the connecting section of the upper steel pile casing 1 and the lower steel pile casing 2 in the moving process, the straightness of the two sides of the connecting section of the upper steel pile casing 1 and the lower steel pile casing 2 can be improved after the wedge-shaped block 4 is pressed, the wedge-shaped block 4 can also drive the embedded block 6 to be embedded into the notch on the inner wall of the L-shaped clamping groove 3 in the transverse inserting process, the embedded block 6 can be sleeved outside the stud 7 through the internal through the perforation until the wedge-shaped block 4 is adjusted to a proper position in the L-shaped clamping groove 3, fixing nut 8 is fixed in the outside of gomphosis piece 6 and double-screw bolt 7 junction to when the inner wall of grip tab 10 is contacted to fixation nut 8 at fixed in-process, grip tab 10 can produce the flexible of certain range in the corresponding one side of fixed strip 9 under the elastic effort of elastic rubber piece, until after fixation nut 8 installs, grip tab 10 can carry out the centre gripping to the upper and lower both sides of fixation nut 8 again under the elastic effort of elastic rubber piece to consolidate fixation nut 8, also can stretch into the inside of support piece 5 with the bottom when wedge 4 inserts the inside of L type draw-in groove 3 simultaneously, after wedge 4 is locked by spacing, go up steel protection cylinder 1 and lower steel protection cylinder 2 just be difficult for appearing the off normal condition when the butt joint like this, thereby accomplish a series of works.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. The utility model provides a major diameter pile foundation steel protects a butt joint positioner, is protected a section of thick bamboo (1) and is protected a section of thick bamboo (2) its characterized in that including last steel: the utility model discloses a steel protection barrel, including steel protection barrel, lower steel protection barrel, L type draw-in groove (3) that is transverse distribution is all welded fastening in both sides on lower steel protection barrel (2) top, the inside of L type draw-in groove (3) is interluded there is wedge (4), just the outside welded fastening of wedge (4) has gomphosis piece (6), the notch has been seted up on the inner wall of L type draw-in groove (3), be equipped with double-screw bolt (7) in the notch on L type draw-in groove (3) inner wall, just the inside of gomphosis piece (6) is equipped with and double-screw bolt (7) structure matched with perforation, the outside at double-screw bolt (7) is established through inside perforation cover to gomphosis piece (6), and the outside of gomphosis piece (6) and double-screw bolt (7) junction is connected with fixation nut (8) through the helicitic texture.

2. The large diameter pile foundation steel casing butt joint positioning device of claim 1, wherein: fixing strips (9) are arranged at the upper end and the lower end of the outer side of the embedded block (6), and clamping pieces (10) are fixed on one side corresponding to the fixing strips (9) through elastic rubber blocks.

3. The large diameter pile foundation steel casing butt joint positioning device of claim 2, wherein: the opening direction of the clamping piece (10) corresponds, and the inner wall of the clamping piece (10) is matched with the outer wall structure of the fixing nut (8).

4. The large diameter pile foundation steel casing butt joint positioning device of claim 1, wherein: the outer walls of the two sides of the lower steel casing (2) are fixedly welded with supporting blocks (5), and the inside of the supporting blocks (5) is matched with the bottom end structure of the wedge-shaped block (4).

5. The large diameter pile foundation steel casing butt joint positioning device of claim 4, wherein: the front end of the supporting block (5) is of an opening structure, and a rubber pad is fixedly bonded on the inner wall of the supporting block (5).

6. The large diameter pile foundation steel casing butt joint positioning device of claim 1, wherein: the inner side of the wedge block (4) is of a vertical surface structure, and the two sides of the connecting section of the upper steel pile casing (1) and the lower steel pile casing (2) are symmetrically distributed.